Lifting device for road and bridge construction

Abstract

The utility model relates to the technical field of road and bridge construction devices, and discloses a lifting device for road and bridge construction, which comprises a lifting machine main body and a hanging bracket mechanism, the upper side of the lifting machine main body is provided with the movable hanging bracket mechanism, and the hanging bracket mechanism comprises a connecting plate fixedly connected to the side surface of a steel cable of the lifting machine main body; the two sides of the connecting plate are provided with leveling mechanisms capable of being rolled up, the lower sides of the leveling mechanisms are provided with a fixable mounting plate, the lower side of the mounting plate is fixedly provided with fixed lifting hooks at equal intervals, and the center of the upper side of the connecting plate is provided with an anti-falling mechanism. According to the steel plate or reinforcing steel bar horizontal correction device, when the steel plate or reinforcing steel bar is not horizontal, a signal is sent to the controller, the controller controls the driving motor at the corresponding position to work, the driving motor drives the rotating shaft to rotate to wind or loosen the connecting steel cable, and horizontal correction is conducted on the steel plate or reinforcing steel bar through synchronous low-end winding and high-end loosening. Steel plates or steel bars are prevented from falling off easily at non-horizontal positions, and manual position guiding is not convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of road and bridge construction devices, in particular to a lifting device for road and bridge construction. Background Art

[0002] Road bridges are composed of roadbed, pavement, bridges, tunnel engineering and traffic engineering facilities. During the construction of road bridges, steel plates or steel bars need to be hoisted and transported.

[0003] The existing method generally involves wrapping steel cables around both ends of a steel plate or steel bar, and lifting and stretching the center position through a hook. This operation causes the steel plate or steel bar to tilt during lifting, which may cause it to slide and fall. At the same time, the non-horizontal state is not convenient for manual guidance during lifting. For this reason, we propose a lifting device for road and bridge construction. Utility Model Content

[0004] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a lifting device for road and bridge construction.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a lifting device for road and bridge construction, including a lifting machine body and a hanger mechanism, a movable hanger mechanism is arranged on the upper side of the lifting machine body, the hanger mechanism includes a connecting plate fixedly connected to the side of the steel cable of the lifting machine body, a retractable leveling mechanism is arranged on both sides of the connecting plate, a fixable mounting plate is arranged on the lower side of the leveling mechanism, fixed hooks are equidistantly fixedly installed on the lower side of the mounting plate, and an anti-fall mechanism is arranged at the upper center position of the connecting plate.

[0006] Preferably, the leveling mechanism includes fixed blocks symmetrically fixedly installed on the sides of the connecting plate, a rotating shaft is arranged between the fixed blocks, a driving motor is fixedly installed on the side of the fixed block corresponding to the rotating shaft and the driving motor is fixedly connected to the side of the fixed block, connecting steel cables are symmetrically fixedly connected on the side of the rotating shaft and the connecting steel cables are fixedly connected to the side of the mounting plate, a level measuring instrument is fixedly installed at the upper center position of the mounting plate, and a controller is fixedly installed on the upper side of the mounting plate corresponding to the position of the level measuring instrument.

[0007] Preferably, the connecting steel cable is arranged on the side of the rotating shaft in a winding shape, and the connecting steel cable is a 65MN steel cable.

[0008] Preferably, the anti-fall mechanism includes a fixed steel cable passing through the center position of the connecting plate, a clamp is arranged on the upper side of the connecting plate corresponding to the position of the fixed steel cable, a limit block is fixedly sleeved on the side of the fixed steel cable, and a pressure sensor is arranged on the upper side of the limit block.

[0009] Preferably, a safety block which can further limit the position is fixedly installed on the side of the fixed steel cable away from the crane body, the safety block is a circular block, and the fixed steel cable is a 80MN steel cable.

[0010] Preferably, safety steel cables are equidistantly and fixedly connected at corresponding connecting steel cable positions between the connecting plate and the mounting plate, and the safety steel cables are 75MN steel cables.

[0011] Beneficial Effects

[0012] The utility model provides a lifting device for road and bridge construction, which has the following beneficial effects:

[0013] (1) When using the lifting device for road and bridge construction, the steel plate or steel bar is first fixed horizontally at the lower side of the mounting plate by a fixed hook, and then lifted by the lifting machine body. The driving motor, the rotating shaft, the connecting steel cable and the level measuring instrument cooperate to detect the level of the mounting plate. If it is not level, the level measuring instrument sends a signal to the controller, and the controller controls the driving motor at the corresponding position to work. The driving motor drives the rotating shaft to rotate to reel in or loosen the connecting steel cable. The steel plate or steel bar is horizontally corrected by synchronously reeling at the low end and loosening at the high end to prevent the steel plate or steel bar from falling easily in a non-level position and being inconvenient to manually guide the position.

[0014] (2) When the lifting device for road and bridge construction is in use, the fixed steel cable, the clamp, the limit block and the pressure sensor cooperate. The limit block limits the fixed steel cable and lifts the connecting plate. The pressure sensor monitors the pressure in real time. When the limit block is separated from the side of the fixed steel cable, the pressure sensor loses pressure and feeds back to the controller. The controller instantly controls the clamp to clamp and fix the fixed steel cable to prevent the fixed steel cable from falling off. At the same time, the safety block further limits the fixed steel cable to enhance protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0016] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the hanger mechanism of the utility model;

[0019] Figure 3 The schematic diagram of the top view of the hanger mechanism of the utility model is

[0020] Figure 4 It is a partial structural schematic diagram of the mounting plate of the utility model;

[0021] Figure 5 For this utility model Figure 4 Enlarged structural diagram at A in the middle.

[0022] Legend:

[0023] 1. Crane body; 2. Hanger mechanism; 21. Connecting plate; 22. Mounting plate; 23. Fixed hook; 3. Leveling mechanism; 31. Fixed block; 32. Rotating shaft; 33. Driving motor; 34. Connecting steel cable; 35. Level measuring instrument; 36. Controller; 4. Anti-fall mechanism; 41. Fixed steel cable; 42. Clamp; 43. Limit block; 44. Pressure sensor; 45. Safety block; 5. Safety steel cable. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] A lifting device for road and bridge construction, such as Figure 1 - Figure 5As shown, it includes a crane body 1 and a hanger mechanism 2. The crane body 1 can be arranged on a mobile device for movement. A movable hanger mechanism 2 is arranged on the upper side of the crane body 1. The hanger mechanism 2 includes a connecting plate 21 fixedly connected to the side of the steel cable of the crane body 1. The connecting plate 21 is a rectangular block. A retractable leveling mechanism 3 is arranged on both sides of the connecting plate 21. A fixable mounting plate 22 is arranged on the lower side of the leveling mechanism 3. The mounting plate 22 is a rectangular plate. Fixed hooks 23 are fixedly installed equidistantly on the lower side of the mounting plate 22. The fixed hooks 23 are existing technologies and are not described in detail here. An anti-falling mechanism 4 is arranged at the center position of the upper side of the connecting plate 21.

[0026] Furthermore, the leveling mechanism 3 includes a fixed block 31 symmetrically fixedly installed on the side of the connecting plate 21, the fixed block 31 is a rectangular block, a rotating shaft 32 is arranged between the fixed blocks 31, a driving motor 33 is fixedly installed on the side of the fixed block 31 corresponding to the rotating shaft 32, and the driving motor 33 is fixedly connected to the side of the fixed block 31, the rotating shaft 32 and the driving motor 33 are existing technologies and are not described in detail here, a connecting steel cable 34 is symmetrically fixedly connected to the side of the rotating shaft 32, and the connecting steel cable 34 is fixedly connected to the side of the mounting plate 22, and the connecting steel cable 34 is wound in a shape. The connecting steel cable 34 is arranged on the side of the rotating shaft 32, and is a round steel cable. The driving motor 33 drives the rotating shaft 32 to rotate to reel or loosen the connecting steel cable 34. The low-end reeling and the high-end loosening are performed synchronously to perform horizontal correction on the steel plate or steel bar. A level measuring instrument 35 is fixedly installed at the center position of the upper side of the mounting plate 22. The level measuring instrument 35 detects the level of the mounting plate 22. A controller 36 is fixedly installed at the upper side of the mounting plate 22 corresponding to the position of the level measuring instrument 35. The level measuring instrument 35 and the controller 36 are existing technologies and are not described in detail here.

[0027] Furthermore, the anti-fall mechanism 4 includes a fixed steel cable 41 which is arranged at the center of the connecting plate 21, and the fixed steel cable 41 is a circular steel cable. A clamp 42 is arranged at the upper side of the connecting plate 21 corresponding to the position of the fixed steel cable 41. The clamp 42 is a prior art and will not be described in detail here. A limit block 43 is fixedly sleeved on the side of the fixed steel cable 41 and the limit block 43 is arranged at the lower side of the connecting plate 21. The limit block 43 is a circular ring block. A pressure sensor 44 is arranged on the upper side of the limit block 43 and the pressure sensor 44 is attached to the side of the connecting plate 21. The pressure is monitored in real time by the pressure sensor 44. The pressure sensor 44 is a prior art and will not be described in detail here. A safety block 45 is fixedly installed on the side of the fixed steel cable 41 away from the crane body 1, and the safety block 45 is a circular block.

[0028] Furthermore, safety steel cables 5 are equidistantly fixedly connected between the connecting plate 21 and the mounting plate 22 at positions corresponding to the connecting steel cables 34. The safety steel cables 5 are round steel cables. The safety steel cables 5 are not normally subjected to force. When the connecting steel cables 34 break, the safety steel cables 5 will buffer the force to avoid a large tilt of the mounting plate 22 due to the breakage of the connecting steel cables 34, thereby ensuring safety.

[0029] The working principle of this utility model:

[0030] When in use, first fix the steel plate or steel bar horizontally at the lower side of the mounting plate 22 by the fixed hook 23, lift it by the crane body 1, and detect the horizontality of the mounting plate 22 by the level measuring instrument 35. When it is not horizontal, send a signal to the controller 36, and control the corresponding position drive motor 33 to work by the controller 36. The drive motor 33 drives the rotating shaft 32 to rotate to reel in or loosen the connecting steel cable 34. The low-end reeling and high-end loosening are carried out simultaneously to correct the level of the steel plate or steel bar, so as to avoid the steel plate or steel bar from falling easily in the non-horizontal position and the inconvenience of manual guidance.

[0031] When in use, the limit block 43 is used to limit the fixed steel cable 41 so that the fixed steel cable 41 can lift the connecting plate 21. The pressure is monitored in real time through the pressure sensor 44. When the limit block 43 is separated from the side of the fixed steel cable 41, the pressure sensor 44 loses pressure and feedback is given to the controller 36. The controller 36 instantly controls the clamp 42 to clamp and fix the fixed steel cable 41 to prevent the fixed steel cable 41 from falling off the rope. At the same time, the safety block 45 further limits the fixed steel cable 41 to enhance protection.

[0032] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A lifting device for road and bridge construction, comprising a lifting machine body (1) and a hanger mechanism (2), wherein a movable hanger mechanism (2) is arranged on the upper side of the lifting machine body (1), characterized in that: The hanger mechanism (2) comprises a connecting plate (21) fixedly connected to the side of the steel cable of the crane body (1), a retractable leveling mechanism (3) is arranged on both sides of the connecting plate (21), a fixable mounting plate (22) is arranged on the lower side of the leveling mechanism (3), fixed hooks (23) are fixedly installed at equal intervals on the lower side of the mounting plate (22), and an anti-falling mechanism (4) is arranged at the center position of the upper side of the connecting plate (21).

2. A lifting device for road and bridge construction according to claim 1, characterized in that: The leveling mechanism (3) comprises a fixed block (31) symmetrically fixedly mounted on the side of the connecting plate (21); a rotating shaft (32) is arranged between the fixed blocks (31); a driving motor (33) is fixedly mounted on the side of the fixed block (31) corresponding to the rotating shaft (32), and the driving motor (33) is fixedly connected to the side of the fixed block (31); a connecting steel cable (34) is symmetrically fixedly connected to the side of the rotating shaft (32), and the connecting steel cable (34) is fixedly connected to the side of the mounting plate (22); a level measuring instrument (35) is fixedly mounted at the center position of the upper side of the mounting plate (22); and a controller (36) is fixedly mounted on the upper side of the mounting plate (22) at a position corresponding to the level measuring instrument (35).

3. A lifting device for road and bridge construction according to claim 2, characterized in that: The connecting steel cable (34) is arranged in a winding shape on the side of the rotating shaft (32), and the connecting steel cable (34) is a 65MN steel cable.

4. A lifting device for road and bridge construction according to claim 3, characterized in that: The anti-fall mechanism (4) comprises a fixed steel cable (41) penetrating through the center of the connecting plate (21), a clamp (42) is arranged on the upper side of the connecting plate (21) at a position corresponding to the fixed steel cable (41), a limit block (43) is fixedly sleeved on the side of the fixed steel cable (41), and a pressure sensor (44) is arranged on the upper side of the limit block (43).

5. A lifting device for road and bridge construction according to claim 4, characterized in that: A safety block (45) capable of further limiting the position is fixedly installed on the side of the fixed steel cable (41) away from the crane body (1); the safety block (45) is a circular block; and the fixed steel cable (41) is an 80MN steel cable.

6. A lifting device for road and bridge construction according to claim 5, characterized in that: Safety steel cables (5) are fixedly connected at equal distances between the connection plate (21) and the installation plate (22) at positions corresponding to the connection steel cables (34), and the safety steel cables (5) are 75MN steel cables.

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