Auxiliary moving device for bridge incremental launching construction and bridge incremental launching method

Abstract

The invention relates to the technical field of bridge incremental launching, and provides an auxiliary moving device for bridge incremental launching construction and a bridge incremental launching method.The auxiliary moving device comprises a carrier, a jacking oil cylinder is arranged at the bottom of the carrier, and a supporting frame is fixedly connected to the top of the carrier. Therefore, when the bridge needs to be subjected to incremental launching construction, the carrier can be placed on a temporary pier, and the four sets of jacking oil cylinders are controlled to drive the whole carrier to move upwards so that the movable platform can make contact with the bottom of the bridge and support the bridge. Then the three sets of pushing oil cylinders are controlled to drive the moving seat to move rightwards so that the supported bridge can move rightwards, then the four sets of jacking oil cylinders are controlled to drive the whole carrier to move downwards so that the moving platform can be separated from the bottom of the bridge, the bridge is placed on the bridge pier again, and finally the three sets of pushing oil cylinders are controlled to drive the moving seat to move leftwards to restore. And the process is cycled to conduct incremental launching construction on the bridge.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge jacking, and in particular to an auxiliary mobile device and a bridge jacking method for bridge jacking construction. Background Art

[0002] The bridge push-up method is a construction method in which the prefabricated bridge sections are prefabricated in the background and then pushed down or horizontally along the bridge piers by jacks and other equipment until the entire bridge is assembled. Features The push-up method has the advantages of fast construction speed, little impact on traffic under the bridge, and saving construction costs.

[0003] The patent document with publication number CN206418404U discloses an auxiliary mobile device for bridge jacking construction, including an auxiliary mobile device, a bridge, a pier, a winding device and a support rod. A jack is horizontally installed at the left end of the bridge, a winding device is installed on the right side of the jack, and an auxiliary mobile device is horizontally installed at the right end of the bridge. A support rod is fixedly installed on the pier, a through hole is opened at the upper end of the support rod, a steel cable runs through the through hole, the right end of the steel cable is connected to the winding device, and the left end is fixedly installed on the side wall of the bridge. In the above application document, the telescopic rod moves downward through the operation of the hydraulic cylinder, and the telescopic rod drives the reinforcement to move downward. The support leg contacts the pier, and the bridge is lifted up by the auxiliary mobile device. The jack on the left applies a thrust to the right to move the bridge to the right. The bridge is placed on the pier, the hydraulic cylinder stops working, and the support leg is retracted. The effect of the jacking construction on the bridge is not good enough, and it is difficult to correct the deviation of the bridge, which is not conducive to the overall construction. Summary of the invention

[0004] The present invention proposes an auxiliary moving device and a bridge pushing method for bridge pushing construction, which solve the problems raised in the above documents.

[0005] The technical solution of the present invention is as follows: an auxiliary mobile device for bridge jacking construction, comprising a carrier, a lifting cylinder is arranged at the bottom of the carrier, a support frame is fixedly connected to the top of the carrier, a jacking cylinder is arranged on the inner side of the support frame, and a mobile correction mechanism and a lubrication mechanism are arranged on the top of the carrier; the mobile correction mechanism comprises a guide rail A, a mobile seat is slidably connected to the top of the guide rail A, a guide rail B, a support seat and a protective cover are fixedly connected to the top of the mobile seat, a correction cylinder is arranged on the inner side of the support seat, and a mobile platform is slidably connected to the top of the guide rail B.

[0006] The number of the jacking cylinders is set to four groups, and the four groups of jacking cylinders are respectively located at the four corners of the bottom of the carrier. Controlling the four groups of jacking cylinders can drive the carrier to move upward as a whole so that the mobile platform contacts the bottom of the bridge and supports the bridge.

[0007] The number of the pushing cylinders is set to three groups, and the output ends of the three groups of pushing cylinders are fixedly connected to the side of the moving seat. Controlling the three groups of pushing cylinders can drive the moving seat to move to the right, so that the supported bridge moves to the right.

[0008] The number of the correcting cylinders is set to four groups, and the output ends of two groups of the correcting cylinders are fixedly connected to the front end of the mobile platform, and the output ends of the other two groups of the correcting cylinders are fixedly connected to the rear end of the mobile platform. By controlling the four groups of correcting cylinders, the mobile platform can be controlled to move toward the front end or the rear end to correct the deviation of the supported bridge.

[0009] The lubrication mechanism includes an oil chamber, a pressure chamber and a lubricating oil tank, the oil chamber is opened inside the movable seat, an oil outlet hole is opened at the inner bottom of the oil chamber, the pressure chamber and the lubricating oil tank are both fixedly connected to the top of the carrier, the front end and the rear end of the pressure chamber are respectively penetrated and fixedly connected with a telescopic hose and a suction pipe, the end of the suction pipe away from the pressure chamber is penetrated and fixedly connected to the lubricating oil tank, the end of the telescopic hose away from the pressure chamber is penetrated and fixedly connected to the oil chamber, a one-way valve is arranged inside the telescopic hose and the suction pipe, a return spring is arranged inside the pressure chamber, a piston plate is slidably connected to the pressure chamber through the return spring piston, a pressure rod is fixedly connected to the side of the piston plate away from the return spring, the pressure rod is penetrated and slidably connected to the pressure chamber, and a stirring mechanism is arranged at the front end of the lubricating oil tank.

[0010] The bottom of the oil outlet hole is close to the top of the guide rail A, and the end of the pressure rod away from the piston plate is close to the side of the moving seat. The lubricating oil in the oil chamber can drop to the top of the guide rail A through the oil outlet hole. When the moving seat moves to the right, it will squeeze the pressure rod to cause the pressure rod to move to the right.

[0011] The one-way valve in the suction pipe is unidirectionally conductive toward the interior of the pressure chamber, and the one-way valve in the telescopic hose is unidirectionally conductive toward the oil chamber. When negative pressure is formed in the pressure chamber, the lubricating oil in the lubricating oil tank is sucked into the pressure chamber through the suction pipe. When the lubricating oil in the pressure chamber is squeezed, the lubricating oil therein is discharged into the oil chamber through the telescopic hose.

[0012] The stirring mechanism includes a stirring shaft, a rotating shaft and a gear rod. The stirring shaft is rotatably connected to the inner bottom of the lubricating oil tank. The surface of the stirring shaft is fixedly connected with stirring blades and a bevel gear A. The rotating shaft passes through and is rotatably connected to the front end of the lubricating oil tank. The two ends of the rotating shaft are respectively fixedly connected with a bevel gear B and a driven gear. The gear rod is fixedly connected to the side end of the moving seat.

[0013] The bevel gear A is meshed vertically with the bevel gear B, and the upper teeth of the driven gear are meshed with the upper teeth of the gear rod. When the bevel gear B rotates, the bevel gear A is driven to rotate. When the gear rod moves, its upper teeth mesh with the upper teeth of the driven gear, which drives the driven gear to rotate.

[0014] The bridge pushing method of the auxiliary mobile device used for bridge pushing construction comprises the following steps: S1. According to the actual situation, multiple groups of carriers are set and placed on the top of each temporary bridge pier respectively. The four groups of jacking cylinders are controlled to drive the carrier to move upward as a whole so that the mobile platform contacts the bottom of the bridge and supports the bridge. The three groups of jacking cylinders are controlled to drive the moving seat to move right so that the bridge supported by the mobile platform moves to the right. Then, the four groups of jacking cylinders are controlled to drive the carrier to move downward as a whole so that the mobile platform is separated from the bottom of the bridge. At this time, the bridge is placed on the pier again. Finally, the three groups of jacking cylinders are controlled to drive the moving seat to move to the left to restore. This process is repeated so that the bridge gradually moves to the right to complete the jacking construction. S2. The moving seat will squeeze the pressure rod and drive it to move right. The pressure rod moving right will drive the piston plate to move right. The piston plate moving right will squeeze the lubricating oil in the pressure chamber and discharge it into the oil chamber through the telescopic hose. When the moving seat moves to the left to restore, the return spring rebounds and drives the piston plate to move to the left to restore. At this time, negative pressure will be formed in the pressure chamber, so that the lubricating oil will be re-sucked through the suction pipe, and the lubricating oil entering the oil chamber will flow out through the oil outlet hole to the guide rail A for lubrication, reducing the wear between the moving seat and the guide rail A; S3. When the movable seat moves to the right and then moves to the left to restore, the gear rod will be driven to move. The gear rod will move and its upper teeth will mesh with the teeth on the driven gear, which will drive the driven gear to rotate. The rotation of the driven gear will drive the rotating shaft to rotate. The rotation of the rotating shaft will drive the stirring shaft to rotate through the cooperation of bevel gear B and bevel gear A. The rotation of the stirring shaft will drive the stirring blades on it to stir the lubricating oil in the lubricating oil tank.

[0015] The working principle and beneficial effects of the present invention are: 1. The present invention is provided with a mobile deviation correction mechanism, so that when it is necessary to carry out jacking construction on the bridge, the carrier can be placed on the temporary bridge pier, and the four groups of jacking cylinders can be controlled to drive the carrier to move upward as a whole so that the mobile platform contacts the bottom of the bridge and supports the bridge, and then the three groups of jacking cylinders can be controlled to drive the mobile seat to move rightward so that the supported bridge moves to the right, and then the four groups of jacking cylinders are controlled to drive the carrier to move downward as a whole so that the mobile platform is separated from the bottom of the bridge, and the bridge is placed on the pier again, and finally the three groups of jacking cylinders are controlled to drive the mobile seat to move leftward to restore, and this process is repeated to carry out jacking construction on the bridge. Similarly, by controlling the four groups of deviation correction cylinders, the mobile platform can be driven to move to the front end or the rear end to correct the deviation of the supported bridge.

[0016] 2. The present invention is provided with a lubrication mechanism, thereby controlling the three groups of push cylinders to drive the moving seat to move rightward and subsequently controlling the three groups of push cylinders to drive the moving seat to move leftward. In the process, the pressure rod, piston plate, air pressure chamber and other components cooperate to allow the suction pipe to absorb the lubricating oil in the lubricating oil tank and discharge it into the oil chamber through the telescopic hose. The lubricating oil discharged into the oil chamber will fall onto the guide rail A through the oil outlet hole for lubrication, thereby reducing the wear between the moving seat and the guide rail A and improving the overall service life.

[0017] 3. The present invention is provided with a stirring mechanism, thereby achieving the process of controlling the three groups of pushing cylinders to drive the moving seat to move to the right and subsequently controlling the three groups of pushing cylinders to drive the moving seat to move to the left and restore. The stirring shaft will also be driven to rotate through the cooperation of components such as the gear rod, the driven gear, the bevel gear A, and the bevel gear B. The rotation of the stirring shaft drives the stirring blades to stir the lubricating oil in the lubricating oil tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] Figure 1 It is a three-dimensional front view of the overall structure of the present invention; Figure 2 It is a three-dimensional rear view of the overall structure of the present invention; Figure 3 It is a three-dimensional schematic diagram of the structure of the mobile deviation-correcting mechanism of the present invention; Figure 4 A three-dimensional cross-sectional view of the mobile deviation-correcting mechanism structure of the present invention; Figure 5 A three-dimensional schematic diagram of the lubrication mechanism structure of the present invention; Figure 6 For the present invention Figure 5 A three-dimensional magnified view of the structure; Figure 7 A three-dimensional cross-sectional view of the lubrication mechanism structure of the present invention; Figure 8 A three-dimensional cross-sectional view of the structure of the stirring mechanism of the present invention; Fig. 9 For the present invention Figure 8 Three-dimensional enlarged view of the structure of B.

[0020] In the figure: 1. carrier; 2. lifting cylinder; 3. support frame; 4. pushing cylinder; 5. mobile correcting mechanism; 51. guide rail A; 52. moving seat; 53. guide rail B; 54. support seat; 55. correcting cylinder; 56. mobile platform; 57. protective cover; 6. lubricating mechanism; 61. oil chamber; 62. oil outlet; 63. pressure chamber; 64. suction pipe; 65. telescopic hose; 66. reset spring; 67. piston plate; 68. pressure rod; 69. lubricating oil tank; 7. stirring mechanism; 71. stirring shaft; 72. stirring blade; 73. bevel gear A; 74. rotating shaft; 75. bevel gear B; 76. driven gear; 77. gear rod. DETAILED DESCRIPTION

[0021] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Example 1 like Figure 1 to Figure 7As shown, this embodiment proposes an auxiliary mobile device for bridge jacking construction, including a carrier 1, a jacking cylinder 2 is arranged at the bottom of the carrier 1, a support frame 3 is fixedly connected to the top of the carrier 1, a jacking cylinder 4 is arranged on the inner side of the support frame 3, the number of the jacking cylinders 2 is set to four groups, and the four groups of jacking cylinders 4 are respectively located at the four corners of the bottom of the carrier 1, and the four groups of jacking cylinders 2 can be controlled to drive the carrier 1 to move upward as a whole so that the mobile platform 56 contacts the bottom of the bridge and supports the bridge, the number of the jacking cylinders 4 is set to three groups, and the output ends of the three groups of jacking cylinders 4 are all fixedly connected to the side of the moving seat 52, and the three groups of jacking cylinders 4 can be controlled to drive the moving seat 52 to move rightward so that the supported bridge moves rightward, and a moving deviation correction mechanism 5 and a lubrication mechanism 6 are arranged on the top of the carrier 1;The mobile deflection correction mechanism 5 includes a guide rail A51, a moving seat 52 is slidably connected to the top of the guide rail A51, a guide rail B53, a support seat 54 and a protective cover 57 are fixedly connected to the top of the moving seat 52, a deflection correction oil cylinder 55 is arranged on the inner side of the support seat 54, and the number of the deflection correction oil cylinders 55 is set to four groups, and the output ends of two groups of deflection correction oil cylinders 55 are fixedly connected to the front end of the moving platform 56, and the output ends of the other two groups of deflection correction oil cylinders 55 are fixedly connected to the rear end of the moving platform 56. By controlling the four groups of deflection correction oil cylinders 55, the moving platform 56 can be controlled to move to the front end or to the rear end. The supported bridge is corrected, the top of the guide rail B53 is slidably connected to the mobile platform 56, the lubrication mechanism 6 includes an oil chamber 61, a pressure chamber 63 and a lubricating oil tank 69, the oil chamber 61 is opened inside the mobile seat 52, the inner bottom of the oil chamber 61 is provided with an oil outlet 62, the pressure chamber 63 and the lubricating oil tank 69 are fixedly connected to the top of the carrier 1, the front end and the rear end of the pressure chamber 63 are respectively penetrated and fixedly connected with a telescopic hose 65 and a suction pipe 64, the end of the suction pipe 64 away from the pressure chamber 63 is penetrated and fixedly connected with the lubricating oil tank 69, and the telescopic hose 65 is away from the pressure chamber One end of 63 penetrates and is fixedly connected to the oil chamber 61. Both the telescopic hose 65 and the suction pipe 64 are provided with a one-way valve. The one-way valve in the suction pipe 64 is one-way to the inside of the pressure chamber 63. The one-way valve in the telescopic hose 65 is one-way to the oil chamber 61. When negative pressure is formed in the pressure chamber 63, the lubricating oil in the lubricating oil tank 69 is sucked into the pressure chamber 63 through the suction pipe 64. When the lubricating oil in the pressure chamber 63 is squeezed, the lubricating oil in the pressure chamber 63 is discharged into the oil chamber 61 through the telescopic hose 65. A return spring 66 is provided inside the pressure chamber 63. 3 is connected to a piston plate 67 through a return spring 66 piston sliding connection, and a pressure rod 68 is fixedly connected to the side of the piston plate 67 away from the return spring 66. The bottom of the oil outlet hole 62 is close to the top of the guide rail A51, and the end of the pressure rod 68 away from the piston plate 67 is close to the side of the moving seat 52. The lubricating oil in the oil chamber 61 can fall to the top of the guide rail A51 through the oil outlet hole 62. When the moving seat 52 moves to the right, it will squeeze the pressure rod 68 to make the pressure rod 68 move to the right. The pressure rod 68 penetrates and is slidably connected to the pressure chamber 63, and a stirring mechanism 7 is provided at the front end of the lubricating oil tank 69. ;

[0023] In this embodiment, when it is necessary to carry out the jacking work of the bridge, multiple groups of carriers 1 are set according to actual conditions and are placed on the top of each temporary pier respectively. By controlling the four groups of jacking cylinders 2, the carrier 1 can be driven to move upward as a whole so that the mobile platform 56 contacts the bottom of the bridge and supports the bridge. At this time, the bottom of the bridge leaves the pier, and the three groups of jacking cylinders 4 can be controlled to drive the moving seat 52 to move to the right so that the bridge supported by the moving platform 56 moves to the right. Subsequently, the four groups of jacking cylinders 2 are controlled to drive the carrier 1 to move downward as a whole so that the mobile platform 56 is separated from the bottom of the bridge. At this time, the bridge is placed back on the pier, and finally the three groups of jacking cylinders 4 are controlled to drive the moving seat 52 to move to the left to restore. This process is repeated so that the bridge gradually moves to the right to complete the jacking construction. When it is necessary to correct the deviation of the bridge, the four groups of jacking cylinders 2 can be controlled to drive the carrier 1 to move upward as a whole so that the mobile platform 56 contacts the bottom of the bridge and supports the bridge. When the three groups of jacking oil cylinders 4 drive the moving seat 52 to move to the right, the moving seat 52 will squeeze the pressure rod 68 to drive the pressure rod 68 to move to the right, and the pressure rod 68 will move to the right to drive the piston plate 67 to move to the right, and the return spring 66 will be compressed, and the movement of the piston plate 67 to the right will squeeze the lubricating oil in the pressure chamber 63 so that it will be discharged into the oil chamber 61 through the telescopic hose 65, and when the three groups of jacking oil cylinders 4 drive the moving seat 52 to move to the left to restore, the return spring 66 rebounds and drives the piston plate 67 to move to the left to restore. At this time, negative pressure will be formed in the pressure chamber 63, so that the lubricating oil will be re-sucked through the suction pipe 64, and the lubricating oil entering the oil chamber 61 will flow out through the oil outlet 62 to the guide rail A51 for lubrication, thereby reducing the wear between the moving seat 52 and the guide rail A51 and improving the overall service life.

[0024] Example 2 like Figure 1 to Figure 9 As shown, based on the same concept as the above-mentioned embodiment 1, a second embodiment is also proposed, the stirring mechanism 7 includes a stirring shaft 71, a rotating shaft 74 and a gear rod 77, the stirring shaft 71 is rotatably connected to the inner bottom of the lubricating oil tank 69, the surface of the stirring shaft 71 is fixedly connected with a stirring blade 72 and a bevel gear A73, the rotating shaft 74 passes through and is rotatably connected to the front end of the lubricating oil tank 69, the two ends of the rotating shaft 74 are respectively fixedly connected with a bevel gear B75 and a driven gear 76, the gear rod 77 is fixedly connected to the side end of the moving seat 52, the bevel gear A73 is vertically meshed with the bevel gear B75, the teeth on the driven gear 76 are meshed with the teeth on the gear rod 77, when the bevel gear B75 rotates, it will drive the bevel gear A73 to rotate, the gear rod 77 moves its upper teeth to mesh with the teeth on the driven gear 76, which will drive the driven gear 76 to rotate.

[0025] In the present embodiment, in the process of controlling the three groups of push cylinders 4 to drive the moving seat 52 to move to the right and subsequently move it to the left to restore, the movement of the moving seat 52 will drive the gear rod 77 to move, and the gear rod 77 moves so that its upper teeth engage with the teeth on the driven gear 76, which will drive the driven gear 76 to rotate, and the rotation of the driven gear 76 drives the rotating shaft 74 to rotate, and the rotation of the rotating shaft 74 drives the bevel gear B75 to rotate, and the rotation of the bevel gear B75 and the vertical engagement with the bevel gear A73 will drive the bevel gear A73 to rotate, and the rotation of the bevel gear A73 drives the stirring shaft 71 to rotate, and the rotation of the stirring shaft 71 drives the stirring blades 72 thereon to stir the lubricating oil in the lubricating oil tank 69 to prevent the lubricating oil in the lubricating oil tank 69 from being stratified after being left stationary for a long time, which affects the lubrication effect of the guide rail A51.

[0026] The bridge pushing method of the auxiliary mobile device used for bridge pushing construction comprises the following steps: S1. According to the actual situation, multiple groups of carriers 1 are set and placed on the top of each temporary bridge pier respectively. The four groups of jacking cylinders 2 are controlled to drive the carriers 1 to move upward as a whole so that the mobile platform 56 contacts the bottom of the bridge and supports the bridge. The three groups of jacking cylinders 4 are controlled to drive the moving seat 52 to move rightward so that the bridge supported by the mobile platform 56 moves to the right. Then, the four groups of jacking cylinders 2 are controlled to drive the carriers 1 to move downward as a whole so that the mobile platform 56 is separated from the bottom of the bridge. At this time, the bridge is placed on the pier again. Finally, the three groups of jacking cylinders 4 are controlled to drive the moving seat 52 to move leftward to restore. This process is repeated so that the bridge gradually moves to the right to complete the jacking construction. S2, the moving seat 52 will squeeze the pressure rod 68 to drive the pressure rod 68 to move rightward, and the pressure rod 68 moving rightward will drive the piston plate 67 to move rightward, and the piston plate 67 moving rightward will squeeze the lubricating oil in the pressure chamber 63 so that it is discharged into the oil chamber 61 through the telescopic hose 65. When the moving seat 52 moves to the left to restore, the return spring 66 rebounds and drives the piston plate 67 to move to the left to restore. At this time, negative pressure will be formed in the pressure chamber 63, so that the lubricating oil will be re-sucked through the suction pipe 64, and the lubricating oil entering the oil chamber 61 will flow out through the oil outlet 62 to the guide rail A51 for lubrication, thereby reducing the wear between the moving seat 52 and the guide rail A51; S3, the movement of the movable seat 52 to the right and the subsequent movement to the left to restore will drive the gear rod 77 to move. The gear rod 77 moves and its upper teeth engage with the teeth on the driven gear 76, which will drive the driven gear 76 to rotate. The rotation of the driven gear 76 drives the rotating shaft 74 to rotate. The rotation of the rotating shaft 74 drives the stirring shaft 71 to rotate through the cooperation of the bevel gear B75 and the bevel gear A73. The rotation of the stirring shaft 71 drives the stirring blades 72 thereon to stir the lubricating oil in the lubricating oil tank 69.

[0027] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An auxiliary mobile device for bridge jacking construction, characterized in that: It comprises a carrier (1), the bottom of the carrier (1) is provided with a lifting cylinder (2), the top of the carrier (1) is fixedly connected with a support frame (3), the inner side of the support frame (3) is provided with a pushing cylinder (4), and the top of the carrier (1) is provided with a moving deviation correction mechanism (5) and a lubrication mechanism (6); The mobile deviation-correcting mechanism (5) comprises a guide rail A (51), the top of the guide rail A (51) is slidably connected to a moving seat (52), the top of the moving seat (52) is fixedly connected to a guide rail B (53), a support seat (54) and a protective cover (57), the inner side of the support seat (54) is provided with a deviation-correcting oil cylinder (55), and the top of the guide rail B (53) is slidably connected to a moving platform (56).

2. The auxiliary mobile device for bridge jacking construction according to claim 1 is characterized in that: The number of the lifting cylinders (2) is set to four groups, and the four groups of the lifting cylinders (2) are respectively located at the four corners of the bottom of the carrier (1).

3. The auxiliary mobile device for bridge jacking construction according to claim 2 is characterized in that: The number of the pushing oil cylinders (4) is set to three groups, and the output ends of the three groups of pushing oil cylinders (4) are all fixedly connected to the side of the moving seat (52).

4. The auxiliary mobile device for bridge jacking construction according to claim 3 is characterized in that: The number of the deflection correcting cylinders (55) is set to four groups, and the output ends of two groups of the deflection correcting cylinders (55) are fixedly connected to the front end of the mobile platform (56), and the output ends of the other two groups of the deflection correcting cylinders (55) are fixedly connected to the rear end of the mobile platform (56).

5. The auxiliary mobile device for bridge jacking construction according to claim 4 is characterized in that: The lubricating mechanism (6) comprises an oil chamber (61), a pressure chamber (63) and a lubricating oil tank (69); the oil chamber (61) is disposed inside the movable seat (52); an oil outlet hole (62) is disposed at the bottom of the oil chamber (61); the pressure chamber (63) and the lubricating oil tank (69) are both fixedly connected to the top of the carrier (1); a telescopic hose (65) and a suction pipe (64) are respectively passed through and fixedly connected to the front and rear ends of the pressure chamber (63); an end of the suction pipe (64) away from the pressure chamber (63) passes through and is fixedly connected to the lubricating oil tank (69); the telescopic hose (65) and the suction pipe (64) are respectively passed through and fixedly connected to the front and rear ends of the pressure chamber (63); an end of the suction pipe (64) away from the pressure chamber (63) passes through and is fixedly connected to the lubricating oil tank (69); 5) One end away from the pressure chamber (63) penetrates the oil chamber (61) and is fixedly connected; a one-way valve is provided inside the telescopic hose (65) and the suction pipe (64); a return spring (66) is provided inside the pressure chamber (63); a piston plate (67) is slidably connected to the piston of the return spring (66) inside the pressure chamber (63); a pressure rod (68) is fixedly connected to the side of the piston plate (67) away from the return spring (66); the pressure rod (68) penetrates the pressure chamber (63) and is slidably connected; a stirring mechanism (7) is provided at the front end of the lubricating oil tank (69).

6. The auxiliary mobile device for bridge jacking construction according to claim 5 is characterized in that: The bottom of the oil outlet hole (62) is close to the top of the guide rail A (51), and the end of the pressure rod (68) away from the piston plate (67) is close to the side of the movable seat (52).

7. The auxiliary mobile device for bridge jacking construction according to claim 6 is characterized in that: The one-way valve in the suction pipe (64) is one-way conductive toward the interior of the pressure chamber (63), and the one-way valve in the telescopic hose (65) is one-way conductive toward the oil chamber (61).

8. The auxiliary mobile device for bridge jacking construction according to claim 7 is characterized in that: The stirring mechanism (7) comprises a stirring shaft (71), a rotating shaft (74) and a gear rod (77); the stirring shaft (71) is rotatably connected to the inner bottom of the lubricating oil tank (69); a stirring blade (72) and a bevel gear A (73) are fixedly connected to the surface of the stirring shaft (71); the rotating shaft (74) passes through and is rotatably connected to the front end of the lubricating oil tank (69); two ends of the rotating shaft (74) are respectively fixedly connected to a bevel gear B (75) and a driven gear (76); and the gear rod (77) is fixedly connected to the side end of the moving seat (52).

9. The auxiliary mobile device for bridge jacking construction according to claim 8, characterized in that: The bevel gear A (73) is meshed vertically with the bevel gear B (75), and the upper teeth of the driven gear (76) are meshed with the upper teeth of the gear rod (77).

10. The bridge pushing method of the auxiliary moving device for bridge pushing construction according to claim 9, characterized in that: The following steps are involved: S1. According to the actual situation, multiple groups of carriers (1) are arranged and placed on the top of each temporary bridge pier respectively. The four groups of jacking cylinders (2) are controlled to drive the carriers (1) to move upward as a whole so that the mobile platform (56) contacts the bottom of the bridge and supports the bridge. The three groups of jacking cylinders (4) are controlled to drive the mobile seat (52) to move rightward so that the bridge supported by the mobile platform (56) moves to the right. Subsequently, the four groups of jacking cylinders (2) are controlled to drive the carriers (1) to move downward as a whole so that the mobile platform (56) is separated from the bottom of the bridge. At this time, the bridge is placed back on the bridge pier. Finally, the three groups of jacking cylinders (4) are controlled to drive the mobile seat (52) to move leftward to restore. This process is repeated so that the bridge gradually moves to the right to complete the jacking construction. S2, the moving seat (52) squeezes the pressure rod (68) and drives the pressure rod (68) to move rightward. The pressure rod (68) moves rightward and drives the piston plate (67) to move rightward. The piston plate (67) moves rightward and squeezes the lubricating oil in the pressure chamber (63) so that the lubricating oil is discharged into the oil chamber (61) through the telescopic hose (65). When the moving seat (52) moves leftward to restore, the return spring (66) rebounds and drives the piston plate (67) to move leftward to restore. At this time, negative pressure is formed in the pressure chamber (63), so that the lubricating oil is re-sucked through the suction pipe (64), and the lubricating oil entering the oil chamber (61) flows out through the oil outlet hole (62) to the guide rail A (51) for lubrication, thereby reducing the wear between the moving seat (52) and the guide rail A (51); S3. During the process of the moving seat (52) moving rightward and subsequently moving leftward to restore, the gear rod (77) is driven to move. The gear rod (77) moves so that its upper teeth mesh with the upper teeth of the driven gear (76), which drives the driven gear (76) to rotate. The rotation of the driven gear (76) drives the rotating shaft (74) to rotate. The rotation of the rotating shaft (74) drives the stirring shaft (71) to rotate through the cooperation of the bevel gear B (75) and the bevel gear A (73). The rotation of the stirring shaft (71) drives the stirring blades (72) thereon to stir the lubricating oil in the lubricating oil tank (69).

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