Beam falling device of segment assembly bridge girder erection machine

Abstract

The utility model belongs to the technical field of beam falling of bridge girder erection machines, particularly relates to a beam falling device of a segment assembly bridge girder erection machine, and provides the following scheme aiming at the problem that in the prior art, in the beam falling process, two beam falling mechanisms cannot be stably and horizontally moved and adjusted at the same time, so that the accuracy of overall beam falling adjustment cannot be guaranteed. The device comprises a base; the beam falling box is fixedly installed at the top of the base, a supporting plate is fixedly installed in the beam falling box, a first motor is fixedly installed at the bottom of the supporting plate, pushing boxes are fixedly installed on the inner walls of the two sides of the beam falling box, a partition plate is fixedly installed in the two pushing boxes and the beam falling box, and two telescopic rods are fixedly connected to the two sides of the partition plate. The beam falling mechanism is simple in structure, in the beam falling process, the beam falling mechanism can stably and horizontally move through the adjusting assembly, and therefore the accuracy of overall beam falling adjustment is improved, and people can conveniently use the beam falling mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of beam dropping of a bridge erecting machine, in particular to a beam dropping device of a segment assembly bridge erecting machine. Background Art

[0002] During the construction of the segmental assembly bridge erection machine, a beam drop device is required to drop the entire span beam. During this process, the beam drop devices at the front and rear ends must be synchronized and the principle of four-point lifting and three-point balance must be achieved to ensure construction safety and efficiency.

[0003] In the prior art, during the beam dropping process, it is impossible to simultaneously perform stable horizontal movement adjustment on the two beam dropping mechanisms, thereby failing to ensure the accuracy of the overall beam dropping adjustment. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art that during the beam dropping process, two beam dropping mechanisms cannot be simultaneously adjusted for stable horizontal movement, thereby failing to ensure the accuracy of the overall beam dropping adjustment, and to propose a beam dropping device for a segmented assembly bridge erecting machine.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A beam dropping device for a segmental assembly bridge erecting machine, comprising:

[0007] Base;

[0008] A beam-dropping box is fixedly installed on the top of the base, a support plate is fixedly installed in the beam-dropping box, a first motor is fixedly installed at the bottom of the support plate, push boxes are fixedly installed on the inner walls of both sides of the beam-dropping box, a partition is fixedly installed in the two push boxes, and two telescopic rods are fixedly connected to both sides of the partition, one end of the four telescopic rods is respectively fixedly connected to two beam-dropping trolleys, brackets are fixedly installed on the two beam-dropping trolleys, two sliding holes are provided at the bottom of the beam-dropping box, and the two beam-dropping trolleys are located between the two sliding holes;

[0009] A beam drop assembly is arranged on the beam drop trolley, and there are two beam drop assemblies for segment assembly;

[0010] An adjustment component is arranged in the beam-dropping box and is used for adjusting the two beam-dropping trolleys.

[0011] Furthermore, the falling beam assembly includes two winding seats, a second motor is fixedly installed on one side of the two winding seats, a rotating rod is fixedly connected to the output shafts of the two second motors, a winding roller is fixedly connected to the two rotating rods, and the two winding rollers are connected to a steel wire bundle.

[0012] Furthermore, the two brackets are rotatably provided with a first directional wheel and a second directional wheel, one end of the two steel strand bundles respectively passes through the two first directional wheels and extends to the bottom ends of the two second directional wheels, and the two first directional wheels and the two second directional wheels have the functions of orientation and weight reduction.

[0013] Furthermore, the adjustment assembly includes a first screw, which is rotatably connected to the support plate and fixedly connected to the output shaft of the first motor, and the first screw and the second screw are both rotatably mounted on the support plate, and sprockets are fixedly connected to the outer walls of the first screw and the second screw, and a chain is meshed between the two sprockets.

[0014] Furthermore, the first screw rod and the second screw rod are both threadedly connected with threaded sleeves, the two threaded sleeves are both fixedly connected with blocks, and the two blocks are respectively hinged to the two beam-dropping trolleys with two connecting rods.

[0015] Furthermore, two limit columns are fixedly connected to both sides of the two beam-dropping trolleys, one end of the four limit columns is fixedly connected to the limit blocks, the four limit blocks are slidably connected to the two sliding holes respectively, and the four limit columns and the four limit blocks can have a limiting effect on the two beam-dropping trolleys.

[0016] Compared with the prior art, the advantages of the utility model are:

[0017] In this solution, the two threaded sleeves drive the two blocks to move upward, and the two blocks drive the two beam-dropping trolleys to slide in the beam-dropping box through two connecting rods, thereby achieving the effect of stable horizontal adjustment of the beam-dropping assembly and improving the accuracy of the overall beam-dropping adjustment.

[0018] The utility model has a simple structure. During the beam dropping process, the beam dropping mechanism can be stably moved horizontally by adjusting the components, thereby improving the accuracy of overall beam dropping adjustment and being convenient for people to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural schematic diagram of a beam-dropping device of a segmental assembly bridge erecting machine proposed by the utility model;

[0020] Figure 2 It is a top view structural schematic diagram of a reeling seat of a beam dropping device of a segment assembly bridge erecting machine proposed by the utility model;

[0021] Figure 3 The utility model provides a beam dropping device for a segmental assembly bridge erecting machine. Figure 1 Schematic diagram of the structure of part A in .

[0022] In the figure: 1. base; 2. beam-dropping box; 3. support plate; 4. first motor; 5. push box; 6. partition; 7. telescopic rod; 8. beam-dropping trolley; 9. bracket; 10. winding seat; 11. second motor; 12. rotating rod; 13. winding roller; 14. steel strand bundle; 15. first directional wheel; 16. second directional wheel; 17. first screw; 18. second screw; 19. sprocket; 20. chain; 21. threaded sleeve; 22. block; 23. connecting rod; 24. limit column; 25. limit block. DETAILED DESCRIPTION

[0023] The technical solution of this embodiment will be clearly and completely described below in conjunction with the drawings in this embodiment. Obviously, the described embodiment is only a part of this embodiment, rather than all of the embodiments.

[0024] Embodiment 1

[0025] Reference Figure 1-Figure 3 , a beam dropping device of a segment assembly bridge erecting machine, comprising:

[0026] Base 1;

[0027] The beam-dropping box 2 is fixedly installed on the top of the base 1, a support plate 3 is fixedly installed in the beam-dropping box 2, a first motor 4 is fixedly installed at the bottom of the support plate 3, pushing boxes 5 are fixedly installed on the inner walls of both sides of the beam-dropping box 1, a partition 6 is fixedly installed in the two pushing boxes 5 and in the beam-dropping box 1, two telescopic rods 7 are fixedly connected to both sides of the partition 6, one end of the four telescopic rods 7 is respectively fixedly connected to two beam-dropping trolleys 8, brackets 9 are fixedly installed on the two beam-dropping trolleys 8, two sliding holes are provided at the bottom of the beam-dropping box 2, and the two beam-dropping trolleys 8 are located between the two sliding holes;

[0028] The beam drop assembly is arranged on the beam drop trolley 8, and there are two beam drop assemblies for segment assembly;

[0029] Adjustment component; arranged in the beam-dropping box 1, used for adjusting the two beam-dropping trolleys 8.

[0030] Reference Figure 1 and Figure 2 The beam drop assembly includes two winding seats 10, and a second motor 11 is fixedly installed on one side of the two winding seats 10. A rotating rod 12 is fixedly connected to the output shafts of the two second motors 11, and a winding roller 13 is fixedly connected to the two rotating rods 12. A steel strand bundle 14 is connected to the two winding rollers 13. A first directional wheel 15 and a second directional wheel 16 are rotatably provided on the two brackets 9, and one end of the two steel strand bundles 14 respectively passes through the two first directional wheels 15 and extends to the bottom ends of the two second directional wheels 16.

[0031] Reference Figure 1 and Figure 3 The adjusting component includes a first screw 17, which is rotatably connected to the support plate 3, and the first screw 17 is fixedly connected to the output shaft of the first motor 4, and the first screw 17 and the second screw 18 are both rotatably installed on the support plate 3, and sprockets 19 are fixedly connected to the outer walls of the first screw 17 and the second screw 18, and a chain 20 is meshed and connected between the two sprockets 19, and threaded sleeves 21 are threadedly connected to the first screw 17 and the second screw 18, and blocks 22 are fixedly connected to the two threaded sleeves 21, and the two blocks 22 are respectively hinged to the two beam-dropping trolleys 8 with two connecting rods 23.

[0032] Reference Figure 1 Two limit columns 24 are fixedly connected to both sides of the two beam-dropping trolleys 8, and one end of the four limit columns 24 is fixedly connected to the limit blocks 25, and the four limit blocks 25 are slidably connected to the two sliding holes respectively.

[0033] The implementation principle of the beam-dropping device of a segment assembly bridge-building machine in an embodiment of the present application is as follows: connect the steel strand bundle 14 to the beam, start the two second motors 11, so that the two rotating rods 12 drive the two winding rollers 13 to rotate, and lift the two steel strand bundles 14 to approach the segment block, so as to achieve the purpose of beam dropping, start the first motor 4, so that the first screw 17 rotates, and since the two sprocket wheels 19 are meshed and connected with a chain 20, the second screw 18 and the first screw 17 synchronously drive the two threaded sleeves 21 to move upward, and the two threaded sleeves 21 drive the two blocks 22 to move upward, and the two blocks 22 drive the two beam-dropping trolleys 8 to slide in the beam-dropping box 8 through the two connecting rods 23, thereby achieving the effect of stable horizontal adjustment of the beam-dropping assembly and improving the accuracy of the overall beam-dropping adjustment.

[0034] Embodiment 2

[0035] The difference between this embodiment and the first embodiment is that a reinforcement plate is fixedly installed on one side of the two beam-dropping trolleys 8, and the two reinforcement plates are fixedly connected to the two brackets 9. The two reinforcement plates can improve the stability of the two brackets 9. A control box is provided on one side of the beam-dropping box 2, and a controller is provided in the control box. The controller is used to facilitate driving the beam-dropping assembly and the adjustment assembly. All structures in this application can be selected in terms of material and length according to actual usage. The accompanying drawings are all schematic structural diagrams, and the specific actual dimensions can be appropriately adjusted.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A beam dropping device for a segmental assembly bridge erecting machine, characterized in that: include: Base (1); A beam-dropping box (2) is fixedly installed on the top of the base (1), a support plate (3) is fixedly installed in the beam-dropping box (2), a first motor (4) is fixedly installed at the bottom of the support plate (3), pushing boxes (5) are fixedly installed on the inner walls of both sides of the beam-dropping box (1), a partition (6) is fixedly installed in the two pushing boxes (5) and in the beam-dropping box (1), two telescopic rods (7) are fixedly connected to both sides of the partition (6), one end of the four telescopic rods (7) is respectively fixedly connected to two beam-dropping trolleys (8), and brackets (9) are fixedly installed on the two beam-dropping trolleys (8), and two sliding holes are provided at the bottom of the beam-dropping box (2), and the two beam-dropping trolleys (8) are located between the two sliding holes; A beam drop assembly is arranged on a beam drop trolley (8), wherein there are two beam drop assemblies for segment assembly; An adjustment component is arranged in the beam-dropping box (1) and is used for adjusting the two beam-dropping trolleys (8).

2. The beam dropping device of the segment assembly bridge erecting machine according to claim 1 is characterized in that: The beam drop assembly comprises two winding seats (10), a second motor (11) is fixedly mounted on one side of the two winding seats (10), a rotating rod (12) is fixedly connected to the output shafts of the two second motors (11), a winding roller (13) is fixedly connected to the two rotating rods (12), and a steel strand bundle (14) is connected to the two winding rollers (13).

3. The beam dropping device of the segment assembly bridge erecting machine according to claim 2 is characterized in that: A first directional wheel (15) and a second directional wheel (16) are rotatably provided on the two brackets (9), and one end of the two steel strand bundles (14) respectively passes through the two first directional wheels (15) and extends to the bottom ends of the two second directional wheels (16).

4. The beam dropping device of the segment assembly bridge erecting machine according to claim 1, characterized in that: The adjustment assembly comprises a first screw rod (17), the first screw rod (17) is rotatably connected to the support plate (3), the first screw rod (17) is fixedly connected to the output shaft of the first motor (4), and the first screw rod (17) and the second screw rod (18) are both rotatably mounted on the support plate (3), sprocket wheels (19) are fixedly connected to the outer walls of the first screw rod (17) and the second screw rod (18), and a chain (20) is meshedly connected between the two sprocket wheels (19).

5. The beam dropping device of the segment assembly bridge erecting machine according to claim 4, characterized in that: The first screw rod (17) and the second screw rod (18) are both threadedly connected with a threaded sleeve (21), and the two threaded sleeves (21) are both fixedly connected with a block (22), and the two blocks (22) are respectively hinged to the two beam-dropping trolleys (8) with two connecting rods (23).

6. The beam dropping device of the segmental assembly bridge erecting machine according to claim 1, characterized in that: Two limit columns (24) are fixedly connected to both sides of the two beam-dropping trolleys (8), one end of the four limit columns (24) is fixedly connected to a limit block (25), and the four limit blocks (25) are slidably connected to the two sliding holes respectively.

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