Precast beam hoisting equipment

Abstract

The utility model relates to precast beam hoisting equipment which comprises a cross beam and a transverse moving vehicle, walking wheels are arranged at the bottom of the transverse moving vehicle, a rail is laid on the cross beam, the transverse moving vehicle is installed on the rail in a sliding mode and driven by a chain, chain wheel boxes are arranged at the two ends of the cross beam respectively, and the chain is sequentially meshed with chain wheels in the two chain wheel boxes in a surrounding mode. The chain is connected with the transverse moving vehicle in a penetrating mode and drives the transverse moving vehicle to slide along the track, chain driving and positioning are accurate, and potential safety hazards caused by instability of the precast beam due to sliding are avoided during follow-up precast beam assembling; a winch is arranged on the transverse moving vehicle, an output steel wire rope of the winch surrounds the pulley and is connected with a steering adjusting assembly, and the steering adjusting assembly controls the rotating angle and speed of the hanging beam to achieve steering of the precast beam in the air so as to facilitate erection; winding machines are arranged on the two sides of the bottom end of the steering adjusting assembly and output hanging belts to be connected with the precast beam in a hanging mode. The precast beam hoisting equipment provided by the utility model is safe, reliable, flexible to move and convenient to operate, and ensures the construction quality.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting equipment, in particular to a prefabricated beam lifting equipment. Background Art

[0002] Prefabricated beams are prefabricated in factories and transported to construction sites. They are lifted and assembled and fixed to the corresponding construction locations by lifting equipment. Commonly used lifting equipment is mainly bridge erection machines, but the existing bridge erection machines are not accurately positioned. When positioning is completed and the prefabricated beams are subsequently assembled, the transverse vehicle is prone to sliding, causing the prefabricated beams to become unstable; after the prefabricated beams are lifted, the prefabricated beams cannot be turned in the air, which is inconvenient to operate and affects construction efficiency; when the lifting position of the prefabricated beams is asymmetrical, the prefabricated beams tilt and produce a slope during the lifting and assembly process, affecting construction and creating safety hazards. Utility Model Content

[0003] In order to improve the problems in the above-mentioned background technology when lifting and assembling prefabricated beams, the utility model provides a prefabricated beam lifting device.

[0004] The utility model provides a prefabricated beam lifting device adopts the following technical solution:

[0005] A prefabricated beam lifting equipment, characterized in that it includes a cross beam and a cross-moving vehicle, wherein the bottom of the cross-moving vehicle is provided with running wheels, a track is laid on the cross beam, the cross-moving vehicle is slidably installed on the track and driven by a chain, a winch is provided on the cross-moving vehicle, the winch outputs a steel wire rope that wraps around a pulley and is connected to a steering adjustment component, winders are provided on both sides of the bottom end of the steering adjustment component, and the winder outputs a sling to hang the prefabricated beam.

[0006] Preferably, sprocket boxes are respectively provided at both ends of the beam, and the chain is meshed with the sprockets inside the two sprocket boxes in turn. The chain passes through the transverse vehicle and drives the transverse vehicle to slide along the track. A driving motor for driving the sprocket to rotate is provided on the side of the sprocket box. The chain drive positioning is precise, and at the same time, the tension exerted on the prefabricated beam by the transverse vehicle is dispersed on the track. The chain will not produce a large deformation due to the tension, thereby extending the service life of the chain.

[0007] Preferably, a pressing block for locking the sprocket is provided inside the sprocket box, and the pressing block abuts against the side of the sprocket. The pressing block locks the sprocket, and will not slide during the lifting and assembly process, causing the prefabricated beam to become unstable and create safety hazards.

[0008] Preferably, the steering adjustment assembly includes a boom and a suspension beam, a steering block is provided on the boom, the bottom end of the boom is movably connected to the middle position of the suspension beam, an adjustment cylinder is provided at one end of the suspension beam, an integrated valve is provided at the input end of the adjustment cylinder, and the angle and speed of rotation of the suspension beam are controlled by the integrated valve, and the output end of the adjustment cylinder is hinged to the outside of the steering block.

[0009] Preferably, the integrated valve comprises a reversing valve, a one-way throttle valve and a hydraulic lock which are sequentially arranged at the input end of the adjustment cylinder, and the integrated valve is connected to the oil tank through a hydraulic pipeline.

[0010] Preferably, the winder includes a symmetrically arranged mounting seat, a reel is rotatably connected to the inner side of the mounting seat, an arc plate is wrapped around the outer side of the reel, the sling is wound around the arc plate, and one end of the reel is transmission-connected to the winding motor.

[0011] In summary, the utility model has the following beneficial technical effects:

[0012] The utility model provides a safe, reliable, flexible and easy-to-operate precast beam lifting equipment, which can realize the lifting and assembly of precast beams; the chain is driven by the sprocket box to move the transverse vehicle on the track, and the precast beam is moved to the corresponding construction position and locked by the pressure block. The chain drive positioning is accurate, and no sliding will occur during the assembly process to cause the precast beam to become unstable and cause safety hazards, and the tension on the transverse vehicle will not affect the service life of the chain; the angle and speed of rotation of the hanging beam are controlled by setting a steering adjustment component, so that the steering of the precast beam in the air is realized for erection; a winding machine is set, which appears during the lifting and assembly process of the precast beam, and the inclination slope is automatically adjusted to ensure that the precast beam is always in a horizontal state, and prevent the precast beam from tipping over and causing safety hazards; the entire lifting equipment has good economic benefits and practicality, ensures the construction quality, and can realize the lifting and assembly of various precast beams. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of a prefabricated beam lifting device according to an embodiment of the utility model;

[0014] Figure 2 It is a three-dimensional structural schematic diagram of a sprocket box of an embodiment of the utility model;

[0015] Figure 3 It is a schematic diagram of the plan structure of the front crane and the rear crane of the embodiment of the utility model;

[0016] Figure 4 It is a schematic diagram of the planar structure of the steering adjustment assembly of an embodiment of the utility model;

[0017] Figure 5 It is a schematic diagram of the planar structure of the integrated valve of the embodiment of the utility model;

[0018] Figure 6 It is a partial structural schematic diagram of a winder according to an embodiment of the utility model.

[0019] Explanation of the reference numerals in the accompanying drawings: 1. crossbeam; 2. transverse transfer vehicle; 3. running wheel; 4. track; 5. chain; 6. winch; 7. wire rope; 8. pulley; 9. steering adjustment assembly; 10. sling; 11. sprocket box; 12. sprocket; 13. driving motor; 14. pressure block; 15. suspension rod; 16. suspension beam; 17. steering block; 18. adjustment cylinder; 19. integrated valve; 20. reversing valve; 21. one-way throttle valve; 22. hydraulic lock; 23. oil tank; 24. pillar; 25. longitudinal transfer vehicle; 26. control box; 27. precast beam; 28. front crane; 29. ​​rear crane; 30. precast cap beam; 31. precast T-beam; 32. winder; 33. mounting seat; 34. drum; 35. curved plate; 36. winder motor. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1-6 The utility model is described in further detail.

[0021] The utility model embodiment discloses a prefabricated beam lifting device.

[0022] Reference Figure 1 A prefabricated beam lifting equipment comprises a cross beam 1 and a transverse vehicle 2. The bottoms of both ends of the cross beam 1 are mounted on pillars 24, and a longitudinal vehicle 25 is provided at the bottom of the pillars 24; a running wheel 3 is provided at the bottom of the transverse vehicle 2, a track 4 is laid on the cross beam 1, the transverse vehicle 2 is slidably installed on the track 4 and driven by a chain 5, a winch 6 is provided on the transverse vehicle 2, the winch 6 outputs a steel wire rope 7 that wraps around a pulley 8 and is connected to a steering adjustment component 9, and winders 32 are provided on both sides of the bottom end of the steering adjustment component 9, and the winder 32 outputs a sling 10 to hang the prefabricated beam 30.

[0023] Reference Figure 1 , Figure 3 , Figure 4 The transverse moving vehicle 2 includes a front crane 28 and a rear crane 29. The prefabricated beam 27 is divided into a prefabricated cap beam 30 and a prefabricated T-beam 31. During work, the front crane 28 is first used to lift and erect the prefabricated cap beam 30 alone; then the front crane 28 cooperates with the rear crane 29 to lift and erect the prefabricated T-beam 31; the maximum lifting weight of the front crane 28 and the rear crane 29 is 100t, and the maximum lifting height is 21m, which meets the construction requirements.

[0024] The longitudinal shift vehicle 25 drives the entire equipment to move longitudinally; the transverse shift vehicle 2 slides on the track 4, driving the precast beam 27 to move transversely, and the winch 6 outputs the wire rope 7 to control the up and down movement of the precast beam 27, thereby realizing the precise alignment and assembly of the precast beam 27.

[0025] Reference Figure 1 , Figure 2Sprocket boxes 11 are respectively provided at both ends of the crossbeam 1, and the chain 5 is meshed with the sprockets 12 inside the two sprocket boxes 11 in turn. The chain 5 penetrates the transverse transfer vehicle 2 and drives the transverse transfer vehicle 2 to slide along the track 4; a driving motor 13 is provided on the side of the sprocket box 11 to drive the sprocket 12 to rotate.

[0026] Reference Figure 1 , Figure 2 A pressing block 14 for locking the sprocket 12 is arranged inside the sprocket box 11. The pressing block 14 abuts against the side of the sprocket 12 to prevent the transverse vehicle 2 from sliding during the assembly process. The pressing block 14 is driven by the driving motor 13 and controlled by the control box 26.

[0027] Reference Figure 1 , Figure 3 The steering adjustment assembly 9 includes a suspension rod 15 and a suspension beam 16. A steering block 17 is provided on the suspension rod 15. The bottom end of the suspension rod 15 is movably connected to the middle position of the suspension beam 16. An adjustment cylinder 18 is provided at one end of the suspension beam 16. An integrated valve 19 is provided at the input end of the adjustment cylinder 18, and the rotation angle and speed of the suspension beam 16 are controlled by the integrated valve 19. The output end of the adjustment cylinder 18 is hinged to the outside of the steering block 17.

[0028] The lifting beam 16 is relatively narrow in the longitudinal direction, and when lifting the prefabricated T-beam 31, its shaking and swaying to the left and right can be limited, so that the prefabricated T-beam 31 remains stable during the lifting process; the lifting beam 16 is relatively wide in the transverse direction, which meets the force requirements for lifting the prefabricated cap beam 30, and prevents the prefabricated cap beam 30 from becoming unstable and falling during the beam moving process, causing safety hazards.

[0029] Reference Figure 4 , Figure 5 The integrated valve 19 includes a reversing valve 20, a one-way throttle valve 21 and a hydraulic lock 22 which are sequentially arranged at the input end of the adjusting cylinder 18. The integrated valve 19 is connected to the oil tank 23 through a hydraulic pipeline. The reversing valve 20 controls the output direction of the adjusting cylinder 18, and then controls the steering direction of the hanging beam 16. The hanging beam 16 rotates relative to the boom 15, and the maximum rotation angle is 90°. The one-way throttle valve 21 adjusts the flow rate of the oil and thus controls the steering speed. The hydraulic lock 22 ensures that the entire steering adjustment assembly 9 is locked when the adjusting cylinder 18 stops outputting.

[0030] Reference Figure 6 The winder 32 includes a symmetrically arranged mounting seat 33 , a reel 34 is rotatably connected to the inner side of the mounting seat 33 , an arc plate 35 surrounds the outer side of the reel 34 , the sling 10 is wound around the arc plate 35 , and one end of the reel 34 is transmission-connected to a winding motor 36 .

[0031] The winder 32 is arranged on both sides of the suspension beam 16, and outputs the sling 10 to suspend the precast beam 27. When the hoisting position of the precast beam 27 is asymmetrical, the length of the sling 10 output by the winder 32 is adjusted to adjust the slope of the precast beam 27 to ensure that the precast beam 27 is always in a horizontal state.

[0032] A control box 26 is hung on the side of the bottom end of the support 24. The control box 26 is respectively connected to the drive motor 13, the integrated valve 19, and the winding motor 36 for communication. The control box 26 sends an electrical signal and transmits it to the receiver of the drive motor 13, the integrated valve 19 or the winding motor 36, which drives the drive motor 13, the integrated valve 19 or the winding motor 36 to give feedback to the electrical signal. The construction personnel can control the entire construction process by operating the control box 26.

[0033] The implementation principle of a prefabricated beam lifting equipment in an embodiment of the utility model is as follows: a prefabricated cap beam 30 and a prefabricated T-beam 31 are prefabricated in a factory and transported to a construction site; first, the prefabricated cap beam 30 is hoisted, and the prefabricated cap beam 30 is hoisted by a front crane 28, a winder 32 outputs a sling 10 and fixes the prefabricated cap beam 30 through the sling 10, the prefabricated cap beam 30 is rotated by a steering adjustment assembly 9, the longitudinal shifting vehicle 25 drives the entire equipment to move longitudinally, the sprocket box 11 outputs a chain 5 to drive the front crane 28 to move on the track, and the prefabricated cap beam 30 is moved laterally to a corresponding construction position, and the winch 6 outputs a steel wire rope 7 to control the up and down lifting of the prefabricated cap beam 30, so as to cooperate to realize the precise positioning and hoisting of the prefabricated cap beam 30, and the prefabricated cap beam 30 is hoisted on a pier column installed in advance at the construction position; the front crane 28 and the rear crane 29 cooperate to lift the two ends of the prefabricated T-beam 31 respectively and set up the prefabricated T-beam 31, so as to realize the lifting and hoisting of the prefabricated beam 27 as a whole.

[0034] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A prefabricated beam lifting device, characterized in that: The invention comprises a cross beam (1) and a transverse transfer vehicle (2), wherein the bottom of the transverse transfer vehicle (2) is provided with a running wheel (3), a track (4) is laid on the cross beam (1), the transverse transfer vehicle (2) is slidably mounted on the track (4) and driven by a chain (5), a winch (6) is provided on the transverse transfer vehicle (2), a steel wire rope (7) output by the winch (6) is wrapped around a pulley (8) and connected to a steering adjustment component (9), and a winder (32) is provided on both sides of the bottom end of the steering adjustment component (9), and the winder (32) outputs a sling (10) to hang the prefabricated beam (30).

2. The prefabricated beam lifting equipment according to claim 1, characterized in that: Sprocket boxes (11) are respectively provided at both ends of the crossbeam (1), and the chain (5) is meshed with the sprockets (12) inside the two sprocket boxes (11) in sequence. The chain (5) penetrates and connects the transverse transfer vehicle (2) and drives the transverse transfer vehicle (2) to slide along the track (4); a driving motor (13) for driving the sprocket (12) to rotate is provided on the side of the sprocket box (11).

3. The prefabricated beam lifting equipment according to claim 2, characterized in that: A pressing block (14) for locking the sprocket (12) is arranged inside the sprocket box (11), and the pressing block (14) abuts against a side surface of the sprocket (12).

4. The prefabricated beam lifting equipment according to claim 1, characterized in that: The steering adjustment assembly (9) comprises a suspension rod (15) and a suspension beam (16); a steering block (17) is arranged on the suspension rod (15); the bottom end of the suspension rod (15) is movably connected to the middle position of the suspension beam (16); an adjustment cylinder (18) is arranged at one end of the suspension beam (16); an integrated valve (19) is arranged at the input end of the adjustment cylinder (18); and the rotation angle and speed of the suspension beam (16) are controlled by the integrated valve (19); and the output end of the adjustment cylinder (18) is hinged to the outside of the steering block (17).

5. The prefabricated beam lifting equipment according to claim 4, characterized in that: The integrated valve (19) comprises a reversing valve (20), a one-way throttle valve (21) and a hydraulic lock (22) which are sequentially arranged at the input end of the adjustment oil cylinder (18); the integrated valve (19) is connected to the oil tank via a hydraulic pipeline.

6. The prefabricated beam lifting equipment according to claim 1, characterized in that: The winding machine (32) comprises a symmetrically arranged mounting seat (33), the inner side of which is rotatably connected to a winding drum (34), the outer side of which surrounds an arc-shaped plate (35), the sling (10) is wound around the arc-shaped plate (35), and one end of the winding drum (34) is drivingly connected to a winding motor (36).

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