Bridge erecting machine for narrow-width small-curvature-radius highway ramp bridge

Abstract

The utility model discloses a bridge girder erection machine for a narrow-width small-curvature radius highway ramp bridge, and relates to the technical field of bridge girder erection machines, in particular to a beam frame, two ends of the beam frame are symmetrically and fixedly connected with supporting columns, the inner side of the beam frame is connected with a movable box in a sliding mode, the upper surface of the movable box is fixedly provided with a driving box, the driving box is matched with the beam frame, and the driving box is connected with the beam frame in a sliding mode. And a limiting clamping hole is formed in the bottom end of the inner side of the movable box. The motor drives the driving gear to be meshed with the driven gear, so that the beam frame can rotate by taking the rotating column as the circle center, and the beam frame can move towards one end after the beam frame rotates by being matched with the driving box, so that the beam frame can move in the direction forming an included angle with a crown block; the beam frame can be moved in place when a crown block body cannot be adjusted due to the fact that the curvature radius of a road is small, and therefore the crown block can carry a bridge to move through the beam frame, and the crown block is not affected when used on the road with the small curvature radius.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge erection machines, in particular to a bridge erection machine for a highway ramp bridge with a narrow width and a small curvature radius. Background Art

[0002] A narrow, small curvature radius highway ramp bridge is a special type of bridge with a narrow deck width and a small curvature radius. This bridge design is commonly found on interchange ramps on highways, urban roads with restricted terrain, and mountainous highways.

[0003] A double-girder gantry bridge-building machine disclosed in the Chinese utility model patent application disclosure CN219547558U achieves the purpose of improving the stability of the support frame through the provision of a first hydraulic telescopic rod and a second hydraulic telescopic rod, and achieves the purpose of improving operational safety through the provision of a connecting plate, a movable plate, a micro switch and a longitudinal alarm device. However, the double-girder gantry bridge-building machine still has the disadvantage of being inconvenient to use on roads with a small curvature radius and a narrow road surface, and has no protective function. The staff need to be on the device when working, and the position they are in is relatively high, which makes it easy for accidents to cause people to fall and is not safe enough. Utility Model Content

[0004] (1) Technical problems solved

[0005] In view of the deficiencies in the prior art, the present invention provides a bridge erecting machine for a highway ramp bridge with a narrow width and a small curvature radius, which solves the problems raised in the above-mentioned background technology.

[0006] (2) Technical solution

[0007] The axle up and down groove at two ends embeds respectively in two guide rails up and down of being made up of the groove on the attachment piece, and the tooth on the attachment piece is meshed with tooth on upper sprocket wheel, the lower sprocket. The lower sprocket. The lower sprocket. The lower sprocket. The gear train is constructed accordingly and are equipped with a gear. The fabricating method is as follows:

[0008] Optionally, the pillars are hydraulic lifting pillars, there are multiple pillars, the multiple pillars are distributed in a rectangular array, and the multiple pillars can be lifted and lowered individually.

[0009] Optionally, a plurality of auxiliary wheels are provided on both sides of the movable box, and the plurality of auxiliary wheels are rotatably connected to the beam frame.

[0010] Optionally, the driving box has a built-in power source and an output end of the power source is fixedly connected to a driving wheel, and the driving wheel is transmission-connected to the beam frame.

[0011] Optionally, there are multiple lifting rods, and the multiple lifting rods are distributed in a rectangular array. The bottom ends of the multiple lifting rods are provided with hooks that can be engaged with the bridge, and the hooks are adapted to the bridge.

[0012] Optionally, fixed seats are symmetrically fixed on the bottom ends of both sides of the movable box, and a protective net is movably installed between the two fixed seats. The protective net is composed of a metal frame and a nylon rope woven net. There are two protective nets, and the two protective nets are symmetrically distributed.

[0013] Optionally, a fixed pulley is fixedly mounted on one side of the upper end of the drive box, a winch is fixedly mounted on the upper surface of the drive box, a rope is provided on the inner side of the winch, and the rope is adapted to the fixed pulley.

[0014] Optionally, the rope is made of a steel wire rope, and the other end of the rope is fixedly connected to the top of the protective net.

[0015] (3) Beneficial effects

[0016] The utility model provides a bridge erection machine for a narrow highway ramp bridge with a small curvature radius, which has the following beneficial effects:

[0017] 1. A bridge erecting machine for a narrow highway ramp bridge with a small curvature radius drives a driving gear and a driven gear to engage with each other through a motor, so that the beam frame can rotate with the column as the center of the circle. The driving box can move to one end after the beam frame rotates, so that the beam frame can move in the direction of an angle with the overhead crane. Furthermore, when the overhead crane body cannot be straightened due to a small curvature radius of the highway, the beam frame can be moved into place, and the overhead crane can also be used to move the bridge with the beam frame, so that it will not be affected when used on a highway with a small curvature radius.

[0018] 2. This bridge-building machine for a narrow highway ramp bridge with a small curvature radius can drive the two wheel boxes to move through the telescopic column, so that they can move closer to or farther away from each other at the same time. The spacing between the tires can be adjusted according to the usage so that the device can be used normally in some relatively narrow places.

[0019] 3. This type of bridge erection machine for a narrow highway ramp bridge with a small curvature radius can make the protective net rotate around the fixed seat after the rope is released by the winch, thereby opening the protective net. It can be used to protect workers operating the device during work and prevent accidents caused by workers falling from both sides of the device due to accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0021] Figure 2 It is a cross-sectional schematic diagram of the structure of the utility model;

[0022] Figure 3 It is a three-dimensional schematic diagram of the protective net structure of the utility model;

[0023] Figure 4 For this utility model Figure 2 A magnified schematic diagram of the structure of area A;

[0024] Figure 5 For this utility model Figure 2 A magnified schematic diagram of the structure of the middle B area;

[0025] Figure 6 For this utility model Figure 1 A magnified schematic diagram of the structure of the middle C region;

[0026] Figure 7 For this utility model Figure 1 A magnified schematic diagram of the structure of the middle D region.

[0027] In the figure: 1. Beam; 2. Support; 3. Movable box; 4. Drive box; 5. Limiting card hole; 6. Rotating column; 7. Driven gear; 8. Overhead crane; 9. Motor; 10. Driving gear; 11. Wheel box; 12. Tire; 13. Telescopic column; 14. Lifting mast; 15. Bridge; 16. Fixed seat; 17. Guard net; 18. Fixed pulley; 19. Winch; 20. Rope. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] Example 1

[0030] See also Figure 1 、 2, 4 and 5, the utility model provides a technical solution: a bridge-building machine for a narrow-width and small-curvature-radius highway ramp bridge, comprising a beam frame 1, both ends of which are symmetrically fixedly connected with pillars 2, the pillars 2 being hydraulic lifting pillars, the number of the pillars 2 being multiple, the multiple pillars 2 being distributed in a rectangular array, the multiple pillars 2 being able to be lifted and lowered individually, the inner side of the beam frame 1 being slidably connected with a movable box 3, both sides of the movable box 3 being provided with multiple auxiliary wheels, the multiple auxiliary wheels being rotatably connected with the beam frame 1, the upper surface of the movable box 3 being fixedly mounted with a driving box 4, the driving box 4 having a built-in power source and a driving wheel fixedly connected with the output end of the power source, the driving wheel being transmission-connected with the beam frame 1, the driving box 4 being adapted to the beam frame 1, the inner bottom end of the movable box 3 being provided with a limited card hole 5, the limited card hole 5 The inner side is rotatably connected with a rotating column 6, the upper end of the rotating column 6 is fixedly connected with a driven gear 7, the bottom end of the rotating column 6 is fixedly connected with a crane 8, the inner side of the movable box 3 is fixedly installed with a motor 9, one end of the output shaft of the motor 9 is fixedly connected with a driving gear 10, the driving gear 10 is meshed with the driven gear 7, the bottom ends of the crane 8 are symmetrically connected with wheel boxes 11, one side of the multiple wheel boxes 11 are rotatably installed with tires 12, the inner side of the bottom end of the crane 8 is fixedly connected with a telescopic column 13, the two ends of the telescopic column 13 are respectively fixedly connected to the two wheel boxes 11, the middle part of the crane 8 is provided with a plurality of lifting rods 14, the bottom ends of the multiple lifting rods 14 are movably connected with bridges 15, the number of the lifting rods 14 is multiple, and the multiple lifting rods 14 are distributed in a rectangular array. The bottom end of each lifting rod 14 is provided with a hook that can be engaged with the bridge 15. The hook is adapted to the bridge 15, and the motor 9 drives the driving gear 10 to mesh with the driven gear 7, so that the beam frame 1 can rotate with the rotating column 6 as the center of the circle. The driving box 4 can move to one end after the beam frame 1 rotates, so that the beam frame 1 can move in the direction of the angle with the overhead crane 8, and then the beam frame 1 can be moved into place when the overhead crane 8 body cannot be straightened due to the small curvature radius of the road. The beam frame 1 can also be used to move the overhead crane 8 carrying the bridge 15, so that it will not be affected when used on a road with a small curvature radius. The two wheel boxes 11 can be driven to move by the telescopic column 13, so that they can approach or move each other at the same time. Keep away from, and then can adjust the spacing of tires 12 according to use situation, so that the device can be used normally in some relatively narrow places. Before use, the device can be moved to the designated location by the tires 12 at the bottom of the overhead crane 8, and the two wheel boxes 11 can be driven to move by the telescopic column 13, and then can adjust the spacing of tires 12 according to use situation, so that it can be driven on a narrow road. After moving to the designated location, the motor 9 can be controlled to drive the driving gear 10 to mesh with the driven gear 7 according to the actual situation of the road, so that the beam frame 1 can be rotated. While rotating, the driving box 4 can also be used to move the beam frame 1, so that multiple pillars 2 can be placed on the bridge pier. At this time, after raising the pillars 2, the overhead crane 8 can be vacated.The angle adjustment of the overhead crane 8 can be achieved by meshing the driving gear 10 with the driven gear 7, so that the overhead crane 8 can work normally even on a road section with a smaller curvature radius.

[0031] Example 2

[0032] See also Figure 3 、 6 7. The utility model provides a technical solution: a bridge erection machine for a narrow-width and small-curvature-radius highway ramp bridge, comprising a movable box 3, both bottom ends of which are symmetrically fixed with fixed seats 16, and a protective net 17 movably installed between the two fixed seats 16. The protective net 17 is composed of a metal frame and a nylon rope woven net. The strength of the nylon rope is very high, and it can withstand a large tensile force without being easily broken. It is light and has good flexibility. It can absorb energy and restore its original shape when impacted, and it can resist the erosion of ultraviolet rays, is not easy to age, and is suitable for long-term outdoor use. Therefore, it can play a good protective role while having a low maintenance cost. There are two protective nets 17, and the two protective nets 17 are symmetrically distributed. The upper end of the drive box 4 A fixed pulley 18 is fixedly installed on one side, and a winch 19 is fixedly installed on the upper surface of the drive box 4. A rope 20 is provided on the inner side of the winch 19. The rope 20 is adapted to the fixed pulley 18. The rope 20 is made of a steel wire rope. The other end of the rope 20 is fixedly connected to the top of the protective net 17. After the rope 20 is released by the winch 19, the protective net 17 can be rotated around the fixed seat 16, thereby opening the protective net 17. It can be used to protect workers operating on the device during work, and can prevent workers from falling from both sides of the device due to accidents. When in use, the opened protective net 17 can be used to protect workers when they fall from the device in an accident, preventing them from falling to the ground.

[0033] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A bridge erection machine for a narrow highway ramp bridge with a small curvature radius, comprising a beam frame (1), characterized in that: The two ends are symmetrically fixedly connected with pillars (2), the inner side of the beam frame (1) is slidably connected with a movable box (3), the upper surface of the movable box (3) is fixedly installed with a drive box (4), the drive box (4) is adapted to the beam frame (1), the inner bottom end of the movable box (3) is provided with a limited clamping hole (5), the inner side of the limited clamping hole (5) is rotatably connected with a rotating column (6), the upper end of the rotating column (6) is fixedly connected with a driven gear (7), the bottom end of the rotating column (6) is fixedly connected with a crane (8), the inner side of the movable box (3) is fixedly installed with a motor (9), the One end of the output shaft of the motor (9) is fixedly connected to a driving gear (10), and the driving gear (10) is meshed with the driven gear (7). Both ends of the bottom of the overhead crane (8) are symmetrically and movably connected to wheel boxes (11), and tires (12) are rotatably installed on one side of multiple wheel boxes (11). A telescopic column (13) is fixedly connected to the inner side of the bottom end of the overhead crane (8), and both ends of the telescopic column (13) are fixedly connected to two wheel boxes (11) respectively. A plurality of lifting rods (14) are provided in the middle of the overhead crane (8), and the bottom ends of multiple lifting rods (14) are movably connected to bridges (15).

2. The bridge erecting machine for a narrow-width and small-curvature-radius highway ramp bridge according to claim 1, characterized in that: The pillars (2) are hydraulic lifting pillars, and there are a plurality of the pillars (2). The plurality of the pillars (2) are distributed in a rectangular array, and the plurality of the pillars (2) can be lifted and lowered individually.

3. The bridge erecting machine for a narrow-width and small-curvature-radius highway ramp bridge according to claim 1, characterized in that: Both sides of the movable box (3) are provided with a plurality of auxiliary wheels, and the plurality of auxiliary wheels are rotatably connected to the beam frame (1).

4. The bridge erecting machine for a narrow-width and small-curvature-radius highway ramp bridge according to claim 1, characterized in that: The driving box (4) has a built-in power source, and an output end of the power source is fixedly connected to a driving wheel, and the driving wheel is in transmission connection with the beam frame (1).

5. The bridge erecting machine for a narrow-width and small-curvature-radius highway ramp bridge according to claim 1, characterized in that: There are multiple lifting rods (14), and the multiple lifting rods (14) are distributed in a rectangular array. The bottom ends of the multiple lifting rods (14) are all provided with hooks that can be connected to the bridge (15), and the hooks are compatible with the bridge (15).

6. The bridge erecting machine for a narrow-width and small-curvature-radius highway ramp bridge according to claim 1, characterized in that: The bottom ends of both sides of the movable box (3) are symmetrically fixed with fixed seats (16), and a protective net (17) is movably installed between the two fixed seats (16). The protective net (17) is composed of a metal frame and a nylon rope braided net. The number of the protective nets (17) is two, and the two protective nets (17) are symmetrically distributed.

7. The bridge erecting machine for a narrow-width and small-radius-of-curvature highway ramp bridge according to claim 6, characterized in that: A fixed pulley (18) is fixedly mounted on one side of the upper end of the drive box (4), a winch (19) is fixedly mounted on the upper surface of the drive box (4), a rope (20) is provided on the inner side of the winch (19), and the rope (20) is adapted to the fixed pulley (18).

8. The bridge erecting machine for a narrow highway ramp bridge with a small curvature radius according to claim 7, characterized in that: The rope (20) is made of a steel wire rope material, and the other end of the rope (20) is fixedly connected to the top end of the protective net (17).

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