Beam falling device of segment assembly bridge girder erection machine

Abstract

The utility model discloses a beam falling device of a segment assembly bridge girder erection machine, and particularly relates to the technical field of segment assembly bridge girder erection machines, which comprises a traveling mechanism, a winch is mounted on the traveling mechanism, a steel wire rope is wound on the winch, the free end of the steel wire rope is connected with a beam body, and the free end of the steel wire rope is connected with the beam body. The beam body is provided with a hanging beam anchorage device used for being connected with the segment blocks. By arranging the adjustable limiting structure, in use, the swing amplitude of the steel wire rope can be effectively limited, the steel wire rope is prevented from greatly shaking in the beam falling process, the risk that the steel wire rope collides with constructors is greatly reduced, personnel injury accidents are avoided, and meanwhile the safety of the constructors is improved. And the possibility that the steel wire rope collides with other equipment is reduced, the risk of equipment damage is reduced, the construction safety is enhanced, it is ensured that the steel wire rope moves more stably in the vertical direction, beam body position deviation caused by steel wire rope shaking is reduced, and the whole-hole beam can be located more accurately.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of segmental assembly bridge -erecting machine, concretely relates to a segmental assembly bridge -erecting machine's beam falling device. BACKGROUND

[0002] With the continuous development of bridge construction, segmental assembly bridge -erecting technology is widely applied due to its high construction efficiency, small influence on traffic and other advantages, and in the construction process of segmental assembly bridge -erecting machine, beam falling device is needed to accurately place the whole hole beam on the predetermined position, to ensure the installation precision and stability of bridge;

[0003] In the beam falling process, due to environmental factors, the steel wire rope will swing and shake greatly, which will affect the precision of beam falling, make the whole hole beam difficult to be accurately placed on the predetermined position, and the shaking steel wire rope can hit the construction personnel, cause personnel injury, also can easily collide with other equipment, damage the equipment, affect the construction progress, secondly, the unstable steel wire rope can also cause the whole hole beam to incline in the beam falling process, further increase the risk and difficulty of construction. UTILITARIAN CONTENT

[0004] The utility model aims at providing a segmental assembly bridge -erecting machine's beam falling device to solve the above insufficient place in the technology.

[0005] In order to realize the above purpose, the utility model provides the following technical scheme: a segmental assembly bridge -erecting machine's beam falling device, including walking mechanism, the walking mechanism is installed with winch, the winch is wound with steel wire rope, the free end of steel wire rope is connected with beam body, the beam body is equipped with the beam hanger for connecting segmental beam.

[0006] Preferably, the outer side of the steel wire rope is equipped with adjustable limiting structure, the adjustable limiting structure includes limiting portion and adjusting portion, the limiting portion includes the support column connected between the walking mechanism and the beam body, the both ends of the support column are fixedly connected with the mounting block, and the outer side of the support column is movably connected with the moving seat, the recess of the moving seat is hinged with the support inclined rod, the end, away from the moving seat, of the support inclined rod is hinged with the connecting block, and one end of the connecting block is fixedly connected with the limiting block.

[0007] Preferably, the mounting block is connected with the walking mechanism through bolt, and the limiting block is sleeved on the outside of the steel wire rope.

[0008] Through the above technical scheme:

[0009] In use, the limiting blocks connected through the support columns, the moving seats and the support inclined rods are arranged outside the steel wire rope between the walking mechanism and the beam body, limiting the steel wire rope, effectively limiting the swing amplitude of the steel wire rope, preventing the steel wire rope from swinging greatly during the beam falling process, greatly reducing the risk of the steel wire rope hitting the construction personnel, avoiding the occurrence of personnel injury accidents, at the same time, also reducing the possibility of collision between the steel wire rope and other equipment, reducing the risk of equipment damage, enhancing the safety of construction, secondly, also ensuring that the movement of the steel wire rope in the vertical direction is more stable, reducing the position deviation of the beam body caused by the swing of the steel wire rope, making the whole hole beam more accurately fall into position, improving the quality and precision of bridge construction, in addition, also reducing the adjustment and correction time required due to the swing of the steel wire rope, improving the construction efficiency.

[0010] Preferably, the adjusting part comprises two empty grooves opened in the inner wall of the support column, and the inner parts of the two empty grooves are respectively connected with lead screws, and the outer parts of the lead screws are threadedly connected with threaded blocks.

[0011] Preferably, the outer surface wall of the threaded block is symmetrically connected with two sliding blocks, and the outer surface wall of the support column is provided with sliding grooves matched with the sliding blocks.

[0012] Preferably, the two ends of the support column are respectively provided with two protrusions, the upper lead screw penetrates the support column, the mounting block and the frame of the walking mechanism in sequence and is connected with one of the protrusions, and the lower lead screw penetrates the support column and the mounting block in sequence and is connected with the other protrusion.

[0013] Specifically, the handle of the ratchet wrench is taken and inserted into the groove of the protrusion and rotated, driving the lead screw to rotate, at this time, the threaded block moves up and down in the empty groove, and the sliding block slides in the sliding groove along with the movement of the threaded block, so that the moving seat slides outside the support column. This operation can change the included angle of the two support columns on one side, and the distance between the two limiting blocks can be adjusted according to the size of the beam body and different requirements of the construction environment, meeting the construction requirements in various situations and improving the universality of the limiting assembly. In addition, appropriate distance between the limiting blocks can better limit the swing range of the steel wire rope, so that the steel wire rope maintains a stable motion trajectory during the beam falling process, improving the precision of beam falling.

[0014] Preferably, the limiting block is provided with a braking structure, the braking structure comprises an embedding groove opened in the inner surface wall of the limiting block, the embedding groove is internally embedded with a clamping plate, the clamping plate is arranged outside the steel wire rope, an electromagnetic block is installed in the embedding groove, one end of the electromagnetic block is magnetically attracted to a ferromagnetic block, and a connecting column is fixedly connected between the ferromagnetic block and the clamping plate.

[0015] Preferably, the ferromagnetic block is connected with a spring away from one end of the connecting column, and the spring is sleeved outside the electromagnetic block.

[0016] By the above technical scheme:

[0017] When the steel wire rope falls in the event of failure of the hoist, (a speed sensor can be installed on a motor shaft connected to a motor output end of the hoist to detect the rotating speed, and the rotating speed is used to determine whether the steel wire rope falls), the electromagnetic block is powered off, the spring force is used to push the clamping plate connected with the ferromagnetic block and the connecting column out of the embedding groove and clamp the clamping plate outside the steel wire rope, so that the effect of braking can be achieved, the continuous falling of the steel wire rope can be timely prevented, the danger caused by the falling of the heavy object is effectively avoided, and reliable safety protection is provided for the construction site.

[0018] In the above technical scheme, the technical effects and advantages of the utility model are provided:

[0019] 1. By setting the adjustable limiting structure, the steel wire rope is limited during use, the swinging range of the steel wire rope can be effectively limited, the risk of the steel wire rope impacting the construction personnel is greatly reduced, the occurrence of personnel injury accidents is avoided, the possibility of collision between the steel wire rope and other equipment is also reduced, the risk of equipment damage is reduced, the safety of construction is enhanced, and the movement of the steel wire rope in the vertical direction is also ensured to be more stable, the position deviation of the beam body caused by the swinging of the steel wire rope is reduced, the whole hole beam can be more accurately positioned, the quality and precision of bridge construction are improved, and in addition, the adjustment and correction time caused by the swinging of the steel wire rope is reduced, and the construction efficiency is improved.

[0020] 2. By setting the braking structure, when the steel wire rope falls in the event of failure of the hoist, emergency braking can be performed, the continuous falling of the steel wire rope can be timely prevented, the danger caused by the falling of the heavy object is effectively avoided, reliable safety protection is provided for the construction site, the harm degree of the accident is maximally reduced, the damage of the heavy object to the equipment, the damage to the building and the harm to the personnel are avoided, and the safety is enhanced. DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments or the prior art, the drawings needed in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments described in the utility model, and other drawings can be obtained by those skilled in the art according to these drawings.

[0022] Figure 1 It is the whole structure schematic diagram of the utility model;

[0023] Figure 2 It is the adjustable limit structure and steel wire rope connection schematic diagram of the utility model;

[0024] Figure 3 It is the section view schematic diagram of the adjustable limit structure of the utility model;

[0025] Figure 4 It is the adjustment part enlarged schematic diagram of the utility model;

[0026] Figure 5 It is the brake structure enlarged schematic diagram of the utility model.

[0027] Mark explanation:

[0028] 1, walking mechanism;2, winch;3, steel wire rope;4, beam body;5, beam anchor;6, adjustable limit structure;61, mounting block;62, support column;63, moving seat;64, support inclined rod;65, connecting block;66, limit block;611, hollow groove;612, screw rod;613, threaded block;614, sliding block;615, sliding groove;616, protruding block;7, brake structure;71, embedded groove;72, clamping plate;73, electromagnetic block;74, spring;75, ferromagnetic block;76, connecting column. Specific implementation

[0029] In order to make those skilled in the art better understand the technical scheme of the utility model, the utility model will be further introduced in detail below in conjunction with the drawings.

[0030] The utility model provides a kind of beam falling device of segmental assembling bridge erecting machine as shown in Figure 1 And Figure 2 Including:

[0031] Walking mechanism 1 is installed with winch 2 on walking mechanism 1, winch 2 is wound with steel wire rope 3, the free end of steel wire rope 3 is connected with beam body 4, and beam body 4 is equipped with beam anchor 5 for connecting segmental beam (the above-mentioned walking mechanism 1, winch 2, beam body 4 and beam anchor 5 in the document are identical with the corresponding structure in the high segmental suspension and splicing beam falling device and bridge erecting machine of the application number 202021176982.7 disclosed, all are prior art structure, its specific structure and working principle are more familiar to the skilled in the art and belong to prior art structure, therefore, its specific structure is not described in detail in content), drive by winch 2, lower steel wire rope 3, with the lowering of steel wire rope 3, its beam body 4 is lowered, and beam falling operation is completed.

[0032] The utility model provides a kind of beam falling device of segmental assembling bridge erecting machine as shown in Figures 1-3The falling beam device of the segmental assembling bridge machine shown in the figure, the outer side of the steel wire rope 3 is provided with an adjustable limiting structure 6, the adjustable limiting structure 6 comprises a limiting part and an adjusting part, the limiting part comprises a support column 62 connected between the walking mechanism 1 and the beam body 4, both ends of the support column 62 are fixedly connected with mounting blocks 61, and the outer side of the support column 62 is movably connected with a moving seat 63, the recess of the moving seat 63 is hinged with a support inclined rod 64, one end of the support inclined rod 64 away from the moving seat 63 is hinged with a connecting block 65, and one end of the connecting block 65 is fixedly connected with a limiting block 66.

[0033] The upper mounting block 61 is connected with the walking mechanism 1 through bolts, and the limiting block 66 is sleeved on the outer side of the steel wire rope 3.

[0034] Through the above technical scheme:

[0035] In use, the limiting block 66 connected through the support column 62, the moving seat 63 and the support inclined rod 64 is arranged outside the steel wire rope 3 between the walking mechanism 1 and the beam body 4, plays a limiting role on the steel wire rope 3, can effectively limit the swing amplitude of the steel wire rope 3, prevent the steel wire rope 3 from swinging greatly during the beam falling process, greatly reduce the risk of the steel wire rope 3 hitting the construction personnel, avoid the occurrence of personnel injury accidents, at the same time, also reduce the possibility of collision between the steel wire rope 3 and other equipment, reduce the risk of equipment damage, enhance the safety of construction, secondly, also ensure that the movement of the steel wire rope 3 in the vertical direction is more stable, reduce the position deviation of the beam body 4 caused by the swing of the steel wire rope 3, make the whole hole beam more accurately fall into position, improve the quality and precision of bridge construction, in addition, also reduce the adjustment and correction time needed due to the swing of the steel wire rope 3, improve the construction efficiency.

[0036] Further, referring to Figure 3 and Figure 4 The adjusting part comprises two empty grooves 611 opened in the inner wall of the support column 62, the inner part of the two empty grooves 611 is respectively connected with a lead screw 612, and the outer part of the lead screw 612 is threadedly connected with a threaded block 613.

[0037] The outer surface wall of the threaded block 613 is symmetrically connected with two sliding blocks 614, and the outer surface wall of the support column 62 is provided with a sliding groove 615 matched with the sliding block 614.

[0038] Both ends of the support column 62 are respectively provided with two protrusions 616, the upper lead screw 612 is sequentially penetrated through the support column 62, the mounting block 61 and the frame of the walking mechanism 1 and connected with one of the protrusions 616, and the lower lead screw 612 is sequentially penetrated through the support column 62 and the mounting block 61 and connected with the other protrusion 616.

[0039] Specifically, take the crank handle and insert one end into the recess provided in the protrusion 616 and rotate, drive the lead screw 612 to rotate, at this time the threaded block 613 moves up and down in the empty slot 611, the sliding block 614 moves in the sliding groove 615 along with the threaded block 613, so that the moving seat 63 slides outside the support column 62, which can change the included angle of the two support columns 62 on one side, and the spacing between the two limiting blocks 66 can be adjusted according to the size of the beam body 4 and different requirements of the construction environment, to meet the construction requirements in various situations and improve the versatility of the limiting assembly. Secondly, the appropriate spacing of the limiting blocks 66 can better limit the swing range of the steel wire rope 3, so that the steel wire rope 3 maintains a stable motion trajectory during the beam lowering process, thereby improving the precision of the beam lowering.

[0040] The utility model provides a kind of beam falling device of segment assembling bridge erecting machine as Figure 3 And Figure 5 Limiting block 66 is equipped with brake structure 7, brake structure 7 includes the slot 71 being opened in the inner wall of limiting block 66, the inside of slot 71 is embedded with clamping plate 72, clamping plate 72 is equipped at the outside of steel wire rope 3, slot 71 is equipped with electromagnetic block 73, one end of electromagnetic block 73 is magnetically attracted with ferromagnetic block 75, and connecting column 76 is fixedly connected between ferromagnetic block 75 and clamping plate 72.

[0041] The end of ferromagnetic block 75 away from connecting column 76 is connected with spring 74, and spring 74 is sleeved on the outside of electromagnetic block 73.

[0042] Through the above technical scheme:

[0043] When the steel wire rope 3 falls when the winch 2 fails unexpectedly, (the speed sensor can be installed on the motor shaft connected to the motor output end of the winch 2 to detect the speed, and the speed is used to determine whether the steel wire rope 3 falls), electromagnetic block 73 is powered off, and the spring force of spring 74 is used to push clamping plate 72 connected by ferromagnetic block 75 and connecting column 76 out of slot 71 and clamp it outside steel wire rope 3, which can play a braking effect and prevent the steel wire rope 3 from falling further, effectively avoiding the danger caused by the falling of heavy objects, and providing reliable safety protection for the construction site. (When braking is not required, it is in an energized state, and electromagnetic block 73 is attracted to ferromagnetic block 75, which does not affect the beam lowering operation).

[0044] The above only describes certain exemplary embodiments of the utility model by way of illustration, without doubt, for ordinary skilled person in the art, the described embodiments can be modified in various ways without departing from the spirit and scope of the utility model. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection claimed by the utility model.

Claims

1. A beam launching device for a segmental assembly bridge-erector, characterized in that, Include: Walking mechanism (1), the walking mechanism (1) is installed with winch (2), the winch (2) is wound with steel wire rope (3), the free end of the steel wire rope (3) is connected with beam body (4), the beam body (4) is equipped with for connecting segmental beam's hanging beam anchor (5); The outer side of the steel wire rope (3) is provided with an adjustable limiting structure (6), the adjustable limiting structure (6) includes a limiting part and an adjusting part, the limiting part includes a support column (62) connected between the walking mechanism (1) and the beam body (4), both ends of the support column (62) are fixedly connected with mounting blocks (61), and the outer side of the support column (62) is movably connected with a moving seat (63), the recess of the moving seat (63) is hinged with a support inclined rod (64), one end of the support inclined rod (64) away from the moving seat (63) is hinged with a connecting block (65), one end of the connecting block (65) is fixedly connected with a limiting block (66).

2. The beam launching device of a segmental assembling bridge-erector according to claim 1, characterized in that: The mounting block (61) is connected with the walking mechanism (1) by bolts, and the limiting block (66) is sleeved on the outside of the steel wire rope (3).

3. The beam launching device of a segmental assembling bridge-erector according to claim 1, characterized in that: The adjusting part includes two air slots (611) opened in the inner wall of the support column (62), and the inner parts of the two air slots (611) are respectively connected with lead screws (612), and the outer parts of the lead screws (612) are threadedly connected with threaded blocks (613).

4. The beam launching device of a segmentally assembled bridge machine according to claim 3, characterized in that: The outer surface wall of the threaded block (613) is symmetrically connected with two sliding blocks (614), and the outer surface wall of the support column (62) is provided with a sliding groove (615) matched with the sliding block (614).

5. A beam launching device for a segmental assembly bridge launching machine according to claim 4, characterised in that: Both ends of the support column (62) are respectively provided with two protrusions (616), the upper lead screw (612) penetrates the support column (62), the mounting block (61) and the frame of the walking mechanism (1) in sequence and is connected with one of the protrusions (616), and the lower lead screw (612) penetrates the support column (62) and the mounting block (61) in sequence and is connected with the other protrusion (616).

6. The beam launching device of a segmental assembling bridge-erector according to claim 1, characterized in that: The limiting block (66) is provided with a brake structure (7), the brake structure (7) includes an embedding groove (71) opened in the inner surface wall of the limiting block (66), the embedding groove (71) is embedded with a clamping plate (72), the clamping plate (72) is arranged on the outer side of the steel wire rope (3), the embedding groove (71) is provided with an electromagnetic block (73), one end of the electromagnetic block (73) is magnetically attracted to a ferromagnetic block (75), and the ferromagnetic block (75) and the clamping plate (72) are fixedly connected with a connecting column (76).

7. A beam launching device for a segmental assembly bridge launching machine according to claim 6, characterised in that: One end of the ferromagnetic block (75) away from the connecting column (76) is connected with a spring (74), and the spring (74) is sleeved on the outer side of the electromagnetic block (73).

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