A bridge cap beam secondary tensioning trolley

Abstract

The utility model discloses a secondary tensioning trolley for a bridge cap beam, which effectively solves the problem that it is inconvenient to adjust the height of a hanging basket and the distance from a bridge body; it comprises a bottom car, the upper end of the bottom car is fixedly connected with a T-shaped bracket, the upper side of the bracket is provided with an extension frame which can be moved left and right, the upper side of the extension frame is provided with a driving assembly, the front and rear sides of the driving assembly are respectively fixedly connected with main gears, the main gear is rotatably connected to the extension frame, and the left side of the extension frame is rotatably connected with two front and rear opposite slave gears; the utility model arranges a bracket, an extension frame, a driving assembly, a main gear, a slave gear, a toothed belt, a hanging basket, an elevator and a rack - the driving motor can be used to drive the main gear to rotate, and then the slave gear can be driven to rotate synchronously via the toothed belt, the slave gear can drive the elevator and the hanging basket to rise and fall via the rack, the height of the hanging basket can be adjusted, and the staff can be moved to a suitable position for bridge inspection.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge detection, in particular to a secondary tensioning trolley for a bridge cap beam. Background Art

[0002] Secondary tensioning of bridge cap beams refers to the process of tensioning again to adjust and increase prestress after the first tensioning is completed during bridge construction. It is one of the key processes to ensure the stability and safety of bridge structures, because it can adjust the initial stress state of prestressed steel bars, so that the bridge's bearing capacity can better adapt to load changes, reduce deformation and cracks and other damage during bridge operation, thereby extending the service life of the bridge and ensuring driving safety. During the existing secondary tensioning inspection of bridge cap beams, inspectors are required to use inspection equipment to inspect the entire bridge body. However, when inspecting the bridge, inspectors are required to ride in a hanging basket for inspection. However, the existing structure is large and the operation is complicated, which makes it inconvenient to quickly adjust the height of the hanging basket and the distance from the bridge body, and thus inconvenient for inspectors to conduct inspections. This problem needs to be solved urgently. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the utility model is to provide a secondary tensioning trolley for a bridge cap beam, which effectively solves the problem of inconvenience in adjusting the height of the hanging basket and the distance from the bridge body.

[0004] The technical solution is as follows: the utility model comprises a bottom car, a T-shaped bracket is fixedly connected to the upper end of the bottom car, an extension frame which can be moved left and right is arranged on the upper side of the bracket, a driving assembly is arranged on the upper side of the extension frame, main gears are fixedly connected to the front and rear sides of the driving assembly respectively, the main gear is rotatably connected to the extension frame, two front and rear opposite slave gears are rotatably connected to the left side of the extension frame, the main gear is transmission connected to the slave gears on its corresponding side through a toothed belt, a hanging basket is arranged at the lower left side of the extension frame, elevators are fixedly connected to the front and rear sides of the hanging basket respectively, the front and rear sides of the extension frame are slidingly connected to the elevators on their corresponding sides respectively, and the opposite ends of the two elevators are fixedly connected to racks meshing with the slave gears on their corresponding sides respectively.

[0005] The driving assembly includes a double-headed motor, the output end of the double-headed motor is fixedly connected to a transmission rod, the front and rear sides of the transmission rod are respectively fixedly connected to the main gear on the corresponding side, the front and rear sides of the transmission rod are respectively fixedly connected to a hexagonal prism, and the outer wall of the hexagonal prism is sleeved with a spur gear that can move forward and backward.

[0006] The outer wall of the transmission rod is sleeved with two front-to-back symmetrical moving frames, which are rotatably connected to the spur gears on the corresponding sides. The front and rear sides of the upper end of the frame are respectively fixedly connected with racks 2 that can mesh with the spur gears on the corresponding sides.

[0007] The upper right end of the extension frame is fixedly connected to a protective shell, and the double-head motor is located in the protective shell. The upper end of the protective shell is rotatably connected to a turntable, and connecting rods are hinged on the left and right sides of the turntable, respectively. The connecting rods are respectively hinged to the moving frames on their corresponding sides, and a hydraulic rod is fixedly connected to the rear side of the extension frame, and the output end of the hydraulic rod is fixedly connected to the moving frame on the rear side.

[0008] The front and rear sides of the right end of the extension frame are rotatably connected with locking blocks respectively, the lower end of the locking block can be engaged with the second rack, an inclined groove is provided on the locking block, and the right end of the mobile frame is fixedly connected with an insertion rod that can be inserted into the inclined groove.

[0009] The left side of the extension frame is fixedly connected with a synchronization rod, the middle part of the synchronization rod is fixedly connected with a wire rack, the right side of the extension frame is fixedly connected with a winch, the winch is fixedly connected with a tool box via a steel cable, and the steel cable is located in the wire rack.

[0010] Two front-to-rear counterweight blocks are arranged on the right side of the bracket, and the upper ends of the counterweight blocks are fixedly connected to the bracket via steel wires.

[0011] The utility model can drive the main gear to rotate by using a driving motor by arranging a bracket, an extension frame, a driving assembly, a main gear, a slave gear, a toothed belt, a hanging basket, an elevator and a rack one, and then drive the slave gear to rotate synchronously via the toothed belt; the slave gear can drive the elevator and the hanging basket to rise and fall via the rack one, and the height of the hanging basket can be adjusted, so that the staff can be moved to a suitable position for bridge inspection; the movable frame can be driven to move the spur gear forward and backward by arranging the mobile frame; the rack two can be arranged so that when the spur gear is meshed with the rack two, the rotation of the spur gear can drive the extension frame to move left and right, thereby providing power for the movement of the extension frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is the main axonometric drawing of the utility model.

[0013] Figure 2 It is a left axonometric drawing of the utility model.

[0014] Figure 3 It is a right axonometric view of the bracket in the utility model.

[0015] Figure 4 This utility model Figure 2 A is an enlarged view of the middle image.

[0016] Figure 5 This utility model Figure 3 Enlarged view of B.

[0017] Figure 6 This utility model Figure 3 Enlarged view of C in the middle.

[0018] In the figure: 1. undercarriage; 2. bracket; 3. extension frame; 4. drive assembly; 5. main gear; 6. slave gear; 7. toothed belt; 8. hanging basket; 9. elevator; 10. rack one; 11. double-headed motor; 12. transmission rod; 13. hexagonal prism; 14. spur gear; 15. moving frame; 16. rack two; 17. protective shell; 18. turntable; 19. connecting rod; 20. hydraulic rod; 21. locking block; 22. inclined slot; 23. plug rod; 24. cable rack; 25. winch; 26. steel cable; 27. tool box; 28. counterweight. DETAILED DESCRIPTION

[0019] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0020] Depend on Figures 1 to 6 It is given, including a bottom car 1, a T-shaped bracket 2 is fixedly connected to the upper end of the bottom car 1, an extension frame 3 that can move left and right is arranged on the upper side of the bracket 2, a driving assembly 4 is arranged on the upper side of the extension frame 3, main gears 5 are fixedly connected to the front and rear sides of the driving assembly 4, the main gear 5 is rotatably connected to the extension frame 3, the left side of the extension frame 3 is rotatably connected to two front and rear opposite slave gears 6, the main gear 5 is transmission connected to the slave gears 6 on the corresponding side through a toothed belt 7, a hanging basket 8 is arranged at the lower left side of the extension frame 3, the front and rear sides of the hanging basket 8 are respectively fixedly connected to the elevators 9 on the corresponding sides, the front and rear sides of the extension frame 3 are respectively slidably connected to the elevators 9 on the corresponding sides, and the opposite ends of the two elevators 9 are respectively fixedly connected to racks 10 meshing with the slave gears 6 on the corresponding sides.

[0021] like Figures 1 to 6 As shown, a base vehicle 1 is provided to facilitate the movement of the device, and a bracket 2, an extension frame 3, a driving assembly 4, a main gear 5, a slave gear 6, a toothed belt 7, a hanging basket 8, a lift 9 and a rack 10 are provided. The main gear 5 can be driven to rotate by a driving motor, and then the slave gear 6 can be driven to rotate synchronously via the toothed belt 7. The slave gear 6 can drive the lift 9 and the hanging basket 8 to rise and fall via the rack 10, so as to facilitate the adjustment of the height of the hanging basket 8 and to facilitate the movement of the staff to a suitable position for bridge inspection.

[0022] The driving assembly 4 includes a double-headed motor 11, the output end of the double-headed motor 11 is fixedly connected to a transmission rod 12, the front and rear sides of the transmission rod 12 are respectively fixedly connected to the main gear 5 on the corresponding side, the front and rear sides of the transmission rod 12 are respectively fixedly connected to a hexagonal prism 13, and the outer wall of the hexagonal prism 13 is sleeved with a spur gear 14 that can move forward and backward.

[0023] like Figures 4 to 6As shown, a double-headed motor 11 and a transmission rod 12 are provided so that the double-headed motor 11 can be used to drive the main gear 5 to rotate via the transmission rod 12, thereby providing power for the lifting of the hanging basket 8. A hexagonal prism 13 and a spur gear 14 can be provided so that the transmission rod 12 can be used to drive the spur gear 14 to rotate. At the same time, the spur gear 14 can slide on the hexagonal prism 13. The diameter of the spur gear 14 is larger than the diameters of the main gear 5 and the slave gear 6, thereby ensuring that the speed of the extension frame 3 moving left and right is greater than the speed of the lifting elevator 9.

[0024] The outer wall of the transmission rod 12 is sleeved with two front and rear symmetrical moving frames 15, which are rotatably connected to the spur gears 14 on the corresponding sides. The front and rear sides of the upper end of the bracket 2 are respectively fixedly connected to racks 16 that can mesh with the spur gears 14 on the corresponding sides.

[0025] like Figures 4 to 5 As shown, the movable frame 15 is set to drive the spur gear 14 to move forward and backward, and the rack 16 is set so that when the spur gear 14 is engaged with the rack 16, the spur gear 14 rotates to drive the extension frame 3 to move left and right, providing power for the extension frame 3 to move.

[0026] The upper right end of the extension frame 3 is fixedly connected to a protective shell 17, the double-headed motor 11 is located in the protective shell 17, the upper end of the protective shell 17 is rotatably connected to a turntable 18, the left and right sides of the turntable 18 are respectively hinged with connecting rods 19, the connecting rods 19 are respectively hinged to the moving frame 15 on the corresponding side, and the rear side of the extension frame 3 is fixedly connected to a hydraulic rod 20, and the output end of the hydraulic rod 20 is fixedly connected to the moving frame 15 on the rear side.

[0027] like Figures 4 to 6 As shown, a protective shell 17 is provided to protect the double-headed motor 11 and provide support for the turntable 18. The turntable 18, the connecting rod 19 and the hydraulic rod 20 can be used to drive the movable frame 15 to move. At the same time, the connecting rod 19 and the turntable 18 can make the movable frames 15 on the front and rear sides move synchronously relative to or opposite to each other.

[0028] The front and rear sides of the right end of the extension frame 3 are rotatably connected with locking blocks 21 respectively, and the lower end of the locking block 21 can be engaged with the second rack 16. The locking block 21 is provided with an inclined groove 22, and the right end of the mobile frame 15 is fixedly connected with an insertion rod 23 that can be inserted into the inclined groove 22.

[0029] like Figure 5As shown, the locking block 21, the inclined groove 22 and the insertion rod 23 are arranged so that when the moving frame 15 drives the spur gear 14 to disengage from the meshing with the rack 2 16, the moving frame 15 can drive the locking block 21 to engage with the rack 2 16 through the action of the insertion rod 23 and the inclined groove 22, thereby fixing the position of the extension frame 3 to prevent the extension frame 3 from sliding at will and affecting the safety of the inspection personnel. At the same time, when the spur gear 14 is engaged with the rack 2 16, the locking block 21 swings upward to disengage it from the meshing with the rack 2 16, thereby releasing the limit.

[0030] The left side of the extension frame 3 is fixedly connected with a synchronization rod, the middle part of the synchronization rod is fixedly connected with a wire rack 24, the right side of the extension frame 3 is fixedly connected with a winch 25, the winch 25 is fixedly connected with a tool box 27 via a steel cable 26, and the steel cable 26 is located in the wire rack 24.

[0031] like Figures 1 to 3 As shown, the synchronization rod, the wire rack 24, the winch 25, the steel cable 26 and the tool box 27 are provided. The winch 25 can be used to drive the tool box 27 to be raised and lowered via the steel cable 26, so as to facilitate the construction personnel to transport the tools and avoid the inconvenience of taking the tools when the tools are too heavy to carry. The synchronization rod and the wire rack 24 can be used to support the steel cable 26, and at the same time prevent the steel cable 26 from sliding freely on the synchronization rod, causing the tool box 27 to tilt and cause the tools to fall.

[0032] Two front-to-rear counterweights 28 are provided on the right side of the bracket 2 , and the upper ends of the counterweights 28 are fixedly connected to the bracket 2 via steel wires.

[0033] like Figures 1 to 3 As shown, the counterweight block 28 and the steel wire are provided so that the counterweight block 28 can be lifted by the steel wire. The counterweight block 28 can serve as a balanced support to prevent the entire device from tilting.

[0034] When the utility model is in use, the bottom vehicle 1 is used to move the device to the edge of the bridge, and then the double-headed motor 11 is started, and the double-headed motor 11 drives the main gear 5 to rotate, and the main gear 5 drives the slave gear 6 to rotate through the toothed belt 7, and the slave gear 6 drives the hanging basket 8 to descend through the rack 10 and the elevator 9. At the same time, the spur gear 14 is meshed with the rack 2 16, and the double-headed motor 11 drives the spur gear 14 to rotate through the transmission rod 12 and the hexagonal column 13, thereby driving the extension frame 3 to move to the left, so that the hanging basket 8 can move to the left, and then the hanging basket 8 can extend out of the bridge deck, and at this time, the hanging basket 8 moves to the left while descending;

[0035] When the hanging basket 8 extends out of the bridge deck to a suitable distance from the bridge body, the hydraulic rod 20 is started, and the hydraulic rod 20 drives the rear side moving frame 15 to move forward, and the front side moving frame 15 is driven to move backward through the action of the connecting rod 19 and the turntable 18, and the moving frame 15 drives the spur gear 14 to gradually disengage from the rack 2 16 on the corresponding side. At the same time, the moving frame 15 drives the locking block 21 to engage with the rack 2 16 on the corresponding side through the action of the insertion rod 23 and the inclined groove 22, thereby locking the position of the extension frame 3;

[0036] At this time, the double-headed motor 11 drives the lift 9 to gradually descend. After it descends to a suitable position, the double-headed motor 11 is turned off, and then the inspection personnel can use the lift 9 to descend to the hanging basket 8;

[0037] According to the detection requirements, the winch 25 can be used to drive the tool box 27 to be raised and lowered via the steel cable 26 to transport the required detection instruments for the detection personnel.

[0038] In the present invention, the double-headed motor 11 and the hydraulic rod 20 both have self-locking capabilities and are prior art, so they will not be described in detail here.

[0039] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A secondary tensioning trolley for a bridge cap beam, comprising a bottom trolley (1), characterized in that: A T-shaped bracket (2) is fixedly connected to the upper end of the bottom vehicle (1), an extension frame (3) movable leftward and rightward is provided on the upper side of the bracket (2), a driving assembly (4) is provided on the upper side of the extension frame (3), main gears (5) are fixedly connected to the front and rear sides of the driving assembly (4), the main gears (5) are rotationally connected to the extension frame (3), the left side of the extension frame (3) is rotationally connected to two front and rear opposite slave gears (6), the main gear (5) is transmission-connected to the slave gears (6) on the corresponding side via a toothed belt (7), a hanging basket (8) is provided at the lower left side of the extension frame (3), the front and rear sides of the hanging basket (8) are fixedly connected to the elevators (9) on the corresponding side, the front and rear sides of the extension frame (3) are slidingly connected to the elevators (9) on the corresponding side, and the opposite ends of the two elevators (9) are fixedly connected to racks (10) meshing with the slave gears (6) on the corresponding side.

2. A bridge cap beam secondary tensioning trolley according to claim 1, characterized in that: The driving assembly (4) comprises a double-headed motor (11), the output end of the double-headed motor (11) is fixedly connected to a transmission rod (12), the front and rear sides of the transmission rod (12) are respectively fixedly connected to the main gear (5) on the corresponding side, the front and rear sides of the transmission rod (12) are respectively fixedly connected to a hexagonal prism (13), and the outer wall of the hexagonal prism (13) is sleeved with a spur gear (14) that can move forward and backward.

3. A bridge cap beam secondary tensioning trolley according to claim 2, characterized in that: The outer wall of the transmission rod (12) is sleeved with two front-to-back symmetrical moving frames (15), the moving frames (15) are rotatably connected to the spur gears (14) on the corresponding sides thereof, and the front and rear sides of the upper end of the bracket (2) are respectively fixedly connected to two racks (16) that can mesh with the spur gears (14) on the corresponding sides thereof.

4. A bridge cap beam secondary tensioning trolley according to claim 1, characterized in that: The upper right end of the extension frame (3) is fixedly connected to a protective shell (17), the double-headed motor (11) is located in the protective shell (17), the upper end of the protective shell (17) is rotatably connected to a turntable (18), the left and right sides of the turntable (18) are respectively hinged with connecting rods (19), the connecting rods (19) are respectively hinged to the moving frame (15) on the corresponding side, the rear side of the extension frame (3) is fixedly connected to a hydraulic rod (20), the output end of the hydraulic rod (20) is fixedly connected to the moving frame (15) on the rear side.

5. The secondary tensioning trolley for bridge cap beams according to claim 3 is characterized in that: The right end of the extension frame (3) is rotatably connected to locking blocks (21) at the front and rear sides respectively. The lower end of the locking block (21) can be engaged with the second rack (16). The locking block (21) is provided with an inclined groove (22). The right end of the movable frame (15) is fixedly connected to an insertion rod (23) that can be inserted into the inclined groove (22).

6. A bridge cap beam secondary tensioning trolley according to claim 1, characterized in that: The left side of the extension frame (3) is fixedly connected to a synchronization rod, the middle part of the synchronization rod is fixedly connected to a wire rack (24), the right side of the extension frame (3) is fixedly connected to a winch (25), the winch (25) is fixedly connected to a tool box (27) via a steel cable (26), and the steel cable (26) is located inside the wire rack (24).

7. A bridge cap beam secondary tensioning trolley according to claim 1, characterized in that: Two counterweight blocks (28) are arranged on the right side of the bracket (2) and are arranged opposite to each other in front and back. The upper ends of the counterweight blocks (28) are fixedly connected to the bracket (2) via steel wires.

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