Combined lifting appliance for lifting high-speed railway box girder meshes

Abstract

The invention relates to the technical field of bridge construction, provides a high-speed railway box girder mesh hoisting combined lifting appliance, and is used for decomposing a railway prefabricated box girder steel reinforcement framework into a plurality of steel reinforcement meshes at different parts by researching a box girder steel reinforcement mesh splicing construction process. Moreover, a net grabbing mechanism is arranged on the suspension assembly, in the process of grabbing the box girder net piece, a supporting roller is in lap joint with the reinforcing steel bar net piece to be grabbed, then an electric hydraulic device is started, the electric hydraulic device pulls back a push plate through a hydraulic rod of the electric hydraulic device, and under driving of a rack and a gear, the gear drives a rotating rod to rotate, so that the box girder net piece is grabbed. The rotating rod drives the mounting block to rotate, so that the mounting block drives the net hanging hook to rotate, the net hanging hook is buckled into the reinforcing mesh to be grabbed, then the whole device is hoisted through external hoisting equipment, the reinforcing mesh to be mounted is moved to the working position, operation is easy, and practicability and efficiency are achieved; and mechanical, stable and quick assembly of the box girder reinforcing mesh is realized.

Description

Technical Field

[0001] The invention relates to the technical field of bridge construction, and in particular to a high-speed railway box girder mesh lifting combined lifting device. Background Art

[0002] As railway construction expands to plateau-grade environmental areas, intelligent innovation of high-speed railway beam yards can realize the reduction of manpower in railway construction. Traditional prefabricated box girder steel bars have the characteristics of large quantity, multiple types, multiple nodes, and large volume, which requires the box girder steel bar skeleton to be formed by lifting, shouldering, and hand tying, which is technically difficult, cumbersome and inconvenient to operate, and reduces work efficiency.

[0003] In view of this, the present invention proposes a high-speed railway box girder mesh lifting combined lifting device. Summary of the invention

[0004] The present invention proposes a high-speed railway box girder mesh lifting combined lifting device, which solves the problem that the forming of the box girder steel frame in the related art needs to be carried out by lifting, shouldering, and hand tying, which is technically difficult and the operation is troublesome and inconvenient.

[0005] The technical solution of the present invention is as follows: A high-speed railway box girder mesh lifting combined lifting device, comprising:

[0006] Base, crossbeam and steel mesh;

[0007] A plurality of suspension components disposed at the bottom of the crossbeam and arranged along the length direction of the crossbeam;

[0008] A plurality of net-grabbing mechanisms are arranged on the suspension assembly, and the box beam mesh is suspended by the net-grabbing mechanisms;

[0009] A cross hanger disposed on the upper side of the cross beam for suspending the cross beam;

[0010] An angle adjuster is arranged on the upper side of the cross hanger and is used to adjust the angle of the cross hanger.

[0011] Preferably, the suspension assembly includes two spliced ​​bottom frames, the top of one side of the two bottom frames is fixedly connected to a vertical frame connected to the bottom of the cross beam, a diagonal brace is fixedly connected between the vertical frame and the bottom frame, a plurality of reinforcement rods are fixedly connected between the vertical frame and the bottom frame, and a cross bar is fixedly connected to the inner side of the bottom frame.

[0012] Preferably, the net catching mechanism includes a plurality of supporting plates fixedly connected to the outer wall of the cross bar, a rotating rod is rotatably connected between the plurality of supporting plates, a plurality of mounting blocks are fixedly clamped on the outer wall of the rotating rod, and a net hanging hook is fixedly connected to one side of each mounting block.

[0013] Preferably, the net-catching mechanism also includes a mounting frame fixedly connected to the outer wall of the cross bar, an electric hydraulic device is fixedly installed at the bottom of the mounting frame, a push plate is fixedly connected to the end of the hydraulic rod of the electric hydraulic device, a rack is fixedly connected to the outer wall of the push plate, and the rack slides through the interior of the cross bar.

[0014] Preferably, a gear is fixedly sleeved on the outer wall of the rotating rod, and the gear is meshed with the rack.

[0015] Preferably, the angle adjuster comprises a truss arranged above the cross hanger, a plurality of lifting ears are fixedly connected to the top of the truss, a frame is fixedly connected to the bottom of the truss, and two adjustment components are symmetrically arranged at the bottom of the frame.

[0016] Preferably, the adjusting component comprises a fixing seat fixedly connected to the bottom of the truss, a lead screw is rotatably connected inside the fixing seat, and a motor for rotating the lead screw is fixedly installed at the bottom of the frame;

[0017] A movable seat is threadedly sleeved on the outer wall of the lead screw, and the movable seat is slidably sleeved on the outer wall of the fixed seat. Two second connecting rods are symmetrically hinged on the outer wall of the movable seat, and the two second connecting rods are hinged to the top of the cross hanger, and a first connecting rod is hinged between the two second connecting rods and the bottom of the truss.

[0018] Preferably, the base support includes a support roller, and the support roller is fixedly connected to the bottom frame via a connecting plate.

[0019] Preferably, the cross hanger and a cross frame are sleeved on the outer wall of the cross beam, and limiting grooves are provided on both sides of the cross beam for limiting the position between the cross hanger and the cross beam, and the cross beam and the cross hanger are fixedly connected by reinforcing bolts.

[0020] Preferably, the steel mesh includes a U-shaped steel mesh in a spliced ​​state, a bottom plate top steel mesh, a bottom plate stem inclined steel mesh, an inner web steel mesh, an inner upper web steel mesh, a top plate bottom cantilever steel mesh, a top plate bottom steel mesh, and a top plate top steel mesh.

[0021] The working principle and beneficial effects of the present invention are:

[0022] 1. In the present invention, by studying a construction process suitable for assembling steel meshes of box girders, the steel skeleton of a railway prefabricated box girder is decomposed into steel meshes at multiple different locations. In addition, a net grabbing mechanism is arranged on the suspension assembly. In the process of grabbing the box girder mesh, the support roller is overlapped on the steel mesh to be grabbed, and then the electric hydraulic device is started. The electric hydraulic device pulls back the push plate through its hydraulic rod. Driven by the rack and the gear, the gear drives the rotating rod to rotate, and the rotating rod drives the mounting block to rotate, so that the mounting block drives the hanging net hook to rotate, so that the hanging net hook is buckled into the steel mesh to be grabbed. Then, the entire device is lifted by an external lifting device, and the steel mesh to be installed is moved to the working position. The operation is simple, practical and efficient. The steel mesh is lifted one by one to the binding mold according to the design sequence through the customized steel mesh lifting device for assembly, which completely solves the technical difficulty of lifting, shouldering and hand binding of the box girder steel frame, realizes the mechanized, stable and rapid assembly of the box girder steel mesh, and realizes the production goal of reducing the number of people in railway construction, which has high use value.

[0023] 2. In the present invention, a cross hanger for suspending the cross beam is provided on the upper side of the cross beam, and an angle adjuster for adjusting the angle of the cross hanger is provided on the upper side of the cross hanger. When the steel mesh is installed horizontally, two motors are started synchronously, so that the two screws rotate, the two moving seats move closer to or farther from each other, and the angles of the two second connecting rods change synchronously, and the cross hanger is raised or lowered to realize the lifting and lowering of the steel mesh. When it is necessary to adjust the installation angle of the steel mesh, one of the motors is started, so that the angles of the second connecting rod and the first connecting rod on one set of adjustment components change, so that the cross hanger is tilted, so that the angle of the grabbed steel mesh can be tilted through the cross beam and the suspension assembly, which is convenient for the subassembly of different parts of the box beam steel mesh, has strong applicability, and further improves the assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] Figure 1 This is a schematic diagram of the three-dimensional structure of a high-speed railway box girder mesh lifting combined lifting device proposed by the present invention;

[0026] Figure 2 This is a schematic diagram of the bottom structure assembly of a high-speed railway box girder mesh lifting combined lifting device proposed by the present invention;

[0027] Figure 3 This is a schematic diagram of the three-dimensional structure of the suspension assembly proposed by the present invention;

[0028] Figure 4 for Figure 3 The enlarged structural diagram at A in the middle;

[0029] Figure 5 This is a schematic diagram of the structural composition of the angle adjuster proposed by the present invention;

[0030] Figure 6 This is a schematic diagram of the cross-section splicing of the steel mesh in the middle of the span;

[0031] In the figure: 1, bottom support; 101, support roller; 102, connecting plate; 2, suspension assembly; 201, bottom frame; 202, vertical frame; 203, diagonal support; 204, reinforcement rod; 205, cross bar; 3, cross beam; 301, limit slot; 4, cross hanger; 5, angle adjuster; 501, truss; 502, lifting ear; 503, frame; 504, adjustment component; 5041, fixed seat; 5042, first connecting rod; 5043, moving seat; 5044, lead screw; 5045, second connecting rod; 5046, motor; 6, reinforcement bolt; 7, net catching mechanism; 701, mounting block; 702, mounting frame; 703, rack; 704, electric hydraulic device; 705, push plate; 706, gear; 707, rotating rod; 708, support plate; 709, net hook;

[0032] A1, U-shaped steel mesh; A2, top steel mesh of bottom plate; A3, inclined steel mesh of bottom plate stem; A4, steel mesh inside web plate; A5, upper steel mesh inside web plate; A6, cantilever steel mesh at bottom of top plate; A7, steel mesh at bottom of top plate; A8, top steel mesh at top plate. DETAILED DESCRIPTION

[0033] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Example 1

[0035] See also Figure 2 , Figure 3 as well as Figure 4 A high-speed railway box girder mesh lifting combined lifting device comprises: a bottom support 1, a cross beam 3 and a steel mesh; a plurality of suspension components 2 arranged at the bottom of the cross beam 3 and arranged along the length direction of the cross beam 3; a plurality of net grabbing mechanisms 7 arranged on the suspension components 2, and the box girder mesh is suspended by the net grabbing mechanisms 7; a cross hanger 4 arranged on the upper side of the cross beam 3 for suspending the cross beam 3; an angle adjuster 5 arranged on the upper side of the cross hanger 4 for adjusting the angle of the cross hanger 4.

[0036] Specifically, the suspension assembly 2 includes two bottom frames 201 that are spliced ​​together, and the top of one side of the two bottom frames 201 is fixedly connected to a vertical frame 202 connected to the bottom of the cross beam 3, and a diagonal brace 203 is fixedly connected between the vertical frame 202 and the bottom frame 201. A plurality of reinforcing rods 204 are fixedly connected between the vertical frame 202 and the bottom frame 201, and a cross bar 205 is fixedly connected to the inner side of the bottom frame 201. The bottom bracket 1 includes a support roller 101, and the support roller 101 is fixedly connected to the bottom frame 201 through a connecting plate 102.

[0037] Specifically, the net-catching mechanism 7 includes a plurality of support plates 708 fixedly connected to the outer wall of the cross bar 205, and a rotating rod 707 is rotatably connected between the plurality of support plates 708. A plurality of mounting blocks 701 are fixedly clamped on the outer wall of the rotating rod 707, and a net-hanging hook 709 is fixedly connected to one side of each mounting block 701.

[0038] Furthermore, the net-catching mechanism 7 also includes a mounting frame 702 fixedly connected to the outer wall of the cross bar 205, an electric hydraulic device 704 is fixedly installed at the bottom of the mounting frame 702, a push plate 705 is fixedly connected to the end of the hydraulic rod of the electric hydraulic device 704, a rack 703 is fixedly connected to the outer wall of the push plate 705, and the rack 703 slides through the interior of the cross bar 205.

[0039] Furthermore, a gear 706 is fixedly sleeved on the outer wall of the rotating rod 707 , and the gear 706 is meshed with the rack 703 .

[0040] In this embodiment, during the process of grabbing the box girder mesh, the entire device is lowered so that the support roller 101 overlaps the steel mesh to be grabbed, and then the electric hydraulic device 704 is started, and the electric hydraulic device 704 pulls back the push plate 705 through its hydraulic rod, so that the push plate 705 drives the rack 703 to move toward the side close to the electric hydraulic device 704, so that the rack 703 shuttles inside the crossbar 205. It should be noted that the electric components of the electric hydraulic device 704 and the electric motor 5046 and other electrical equipment can be installed in the suspension assembly 2 in a corresponding manner, which is a prior art and will not be described in detail here. When the rack 703 moves, it can drive the gear 706 to rotate, the gear 706 drives the rotating rod 707 to rotate, the rotating rod 707 drives the mounting block 701 to rotate, so that the mounting block 701 drives the mesh hook 709 to rotate, so that the mesh hook 709 is buckled into the steel mesh to be grabbed, and then the entire device is lifted by an external lifting equipment to move the steel mesh to be installed to the working position.

[0041] Example 2

[0042] See also Figure 1 and Figure 5A high-speed railway box girder mesh lifting combined lifting device includes all the contents of Example 1. In addition, the angle adjuster 5 includes a truss 501 arranged above the cross hanger 4, a plurality of lifting ears 502 are fixedly connected to the top of the truss 501, a frame 503 is fixedly connected to the bottom of the truss 501, and two adjustment components 504 are symmetrically arranged at the bottom of the frame 503.

[0043] Specifically, the adjusting component 504 includes a fixing seat 5041 fixed to the bottom of the truss 501 , a lead screw 5044 is rotatably connected inside the fixing seat 5041 , and a motor 5046 for rotating the lead screw 5044 is fixedly installed at the bottom of the frame 503 .

[0044] Furthermore, a movable seat 5043 is threadedly sleeved on the outer wall of the lead screw 5044, and the movable seat 5043 is slidably sleeved on the outer wall of the fixed seat 5041. Two second connecting rods 5045 are symmetrically hinged on the outer wall of the movable seat 5043, and the two second connecting rods 5045 are hinged to the top of the cross hanger 4, and a first connecting rod 5042 is hinged between the two second connecting rods 5045 and the bottom of the truss 501.

[0045] Furthermore, a cross hanger 4 is a cross frame sleeved on the outer wall of the beam 3, and limiting grooves 301 are provided on both sides of the beam 3 for limiting the position between the cross hanger 4 and the beam 3. The beam 3 and the cross hanger 4 are fixedly connected by reinforcing bolts 6.

[0046] In this embodiment, when the steel mesh is installed horizontally, two motors 5046 are started synchronously, so that the two screws 5044 rotate, so that the movable seat 5043 moves along the screws 5044 and the outer wall of the fixed seat 5041, so that the two movable seats 5043 are close to or away from each other, so that the angles of the two second connecting rods 5045 change synchronously, and the cross hanger 4 is raised or lowered, and the cross beam 3 and the suspension assembly 2 are raised and lowered through the cross hanger 4, and the steel mesh is raised and lowered. When the installation angle of the steel mesh needs to be adjusted, one of the motors 5046 is started, so that the second connecting rod 5045 and the first connecting rod 5042 on one set of adjustment components 504 change their angles, so that the cross hanger 4 tilts, so that the angle of the grabbed steel mesh can be tilted through the cross beam 3 and the suspension assembly 2.

[0047] Example 3

[0048] See also Figure 6A high-speed railway box girder mesh lifting combined lifting device includes a steel mesh, wherein the steel mesh includes a U-shaped steel mesh A1 in a spliced ​​state, a bottom plate top steel mesh A2, a bottom plate stem inclined steel mesh A3, a web inner steel mesh A4, a web inner upper steel mesh A5, a top plate bottom cantilever steel mesh A6, a top plate bottom steel mesh A7, and a top plate top steel mesh A8. By studying the construction process suitable for box girder steel mesh assembly, the following is performed on the box girder steel bar binding jig: Figure 6 The prefabricated assembly shown ultimately forms a technical solution for the assembly of the box girder steel frame.

[0049] Working principle and use process: When working, the whole device is suspended by the lifting lug 502 and the external lifting equipment. When grabbing the box girder mesh, the whole device is lowered so that the support roller 101 overlaps the steel mesh to be grabbed. Then, the electric hydraulic device 704 is started. The electric hydraulic device 704 pulls back the push plate 705 through its hydraulic rod, so that the push plate 705 drives the rack 703 to move toward the side close to the electric hydraulic device 704, so that the rack 703 shuttles inside the crossbar 205. It should be noted that the electrical components of the electric hydraulic device 704 and the electrical equipment such as the motor 5046 can be installed in the suspension assembly 2 in a corresponding manner. This is a prior art and will not be described in detail here. When the rack 703 moves, it can drive the gear 706 to rotate, the gear 706 drives the rotating rod 707 to rotate, and the rotating rod 707 drives the mounting block 701 to rotate, so that the mounting block 701 drives the mesh hook 709 to rotate, so that the mesh hook 709 is buckled into the steel mesh to be grabbed, and then the entire device is lifted by an external lifting device to move the steel mesh to be installed to the working position. Then the steel mesh is lowered and installed. When the steel mesh is installed horizontally, the two motors 5046 are started synchronously, so that the two lead screws 5044 rotate, so that the moving seat 5043 moves along the lead screw 5044 and the outer wall of the fixed seat 5041, so that the two moving seats 5043 are close to or away from each other, so that the angles of the two second connecting rods 5045 change synchronously, the cross hanger 4 is raised or lowered, and the cross beam 3 and the suspension assembly 2 are raised and lowered by the cross hanger 4, so as to raise and lower the steel mesh. When the installation angle of the steel mesh needs to be adjusted, one of the motors 5046 is started, so that the angle of the second connecting rod 5045 and the first connecting rod 5042 on one set of adjustment components 504 changes, causing the cross hanger 4 to tilt, so that the grasped steel mesh can be tilted through the cross beam 3 and the suspension assembly 2, thereby facilitating the assembly and forming of the box girder steel frame.

[0050] It is worth noting that the circuits, electronic components and modules involved in the present invention are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by the present invention does not involve improvements to software and methods.

[0051] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-speed railway box girder mesh lifting combined lifting device, characterized in that: include: A bottom support (1), a cross beam (3) and a steel mesh; A plurality of suspension components (2) arranged at the bottom of the crossbeam (3) and arranged along the length direction of the crossbeam (3); A plurality of net-grabbing mechanisms (7) arranged on the suspension assembly (2), through which the box beam mesh is suspended; A cross hanger (4) disposed on the upper side of the cross beam (3) and used for suspending the cross beam (3); An angle adjuster (5) is arranged on the upper side of the cross hanger (4) and is used to adjust the angle of the cross hanger (4).

2. A high-speed railway box girder mesh lifting combined lifting device according to claim 1, characterized in that: The suspension assembly (2) comprises two bottom frames (201) which are connected to each other. A vertical frame (202) connected to the bottom of the crossbeam (3) is fixedly connected to the top of one side of the two bottom frames (201). A diagonal brace (203) is fixedly connected between the vertical frame (202) and the bottom frame (201). A plurality of reinforcing rods (204) are fixedly connected between the vertical frame (202) and the bottom frame (201). A cross bar (205) is fixedly connected to the inner side of the bottom frame (201).

3. A high-speed railway box girder mesh lifting combined lifting device according to claim 2, characterized in that: The net-catching mechanism (7) comprises a plurality of supporting plates (708) fixedly connected to the outer wall of the cross bar (205); a rotating rod (707) is rotatably connected between the plurality of supporting plates (708); a plurality of mounting blocks (701) are fixedly clamped on the outer wall of the rotating rod (707); and a net-hanging hook (709) is fixedly connected to one side of each mounting block (701).

4. A high-speed railway box girder mesh lifting combined lifting device according to claim 3, characterized in that: The net-catching mechanism (7) further comprises a mounting frame (702) fixedly connected to the outer wall of the cross bar (205), an electric hydraulic device (704) being fixedly mounted at the bottom of the mounting frame (702), a push plate (705) being fixedly connected to the end of the hydraulic rod of the electric hydraulic device (704), a rack (703) being fixedly connected to the outer wall of the push plate (705), and the rack (703) being slidably penetrated through the interior of the cross bar (205).

5. The high-speed railway box girder mesh lifting combined lifting device according to claim 4, characterized in that: A gear (706) is fixedly sleeved on the outer wall of the rotating rod (707), and the gear (706) is meshed with the rack (703).

6. A high-speed railway box girder mesh lifting combined lifting device according to claim 5, characterized in that: The angle adjuster (5) comprises a truss (501) arranged above the cross hanger (4), a plurality of lifting ears (502) being fixedly connected to the top of the truss (501), a frame (503) being fixedly connected to the bottom of the truss (501), and two adjusting components (504) being symmetrically arranged at the bottom of the frame (503).

7. A high-speed railway box girder mesh lifting combined lifting device according to claim 6, characterized in that: The adjusting component (504) comprises a fixing seat (5041) fixedly connected to the bottom of the truss (501), a lead screw (5044) is rotatably connected inside the fixing seat (5041), and a motor (5046) for rotating the lead screw (5044) is fixedly installed at the bottom of the frame (503); The outer wall of the lead screw (5044) is threadedly sleeved with a movable seat (5043), and the movable seat (5043) is slidably sleeved on the outer wall of the fixed seat (5041). The outer wall of the movable seat (5043) is symmetrically hinged with two second connecting rods (5045), and the two second connecting rods (5045) are hinged to the top of the cross hanger (4), and a first connecting rod (5042) is hinged between the two second connecting rods (5045) and the bottom of the truss (501).

8. The high-speed railway box girder mesh lifting combined lifting device according to claim 7, characterized in that: The base support (1) comprises a support roller (101), and the support roller (101) is fixedly connected to the bottom frame (201) via a connecting plate (102).

9. A high-speed railway box girder mesh lifting combined lifting device according to claim 8, characterized in that: The cross hanger (4) is a cross frame sleeved on the outer wall of the cross beam (3), and limiting grooves (301) are provided on both sides of the cross beam (3) for limiting the position between the cross hanger (4) and the cross beam (3), and the cross beam (3) and the cross hanger (4) are fixedly connected by reinforcing bolts (6).

10. The high-speed railway box girder mesh lifting combined lifting device according to claim 1, characterized in that: The steel mesh comprises a U-shaped steel mesh (A1) in a spliced ​​state, a bottom plate top steel mesh (A2), a bottom plate stem inclined steel mesh (A3), a web inner steel mesh (A4), a web inner upper steel mesh (A5), a top plate bottom cantilever steel mesh (A6), a top plate bottom steel mesh (A7) and a top plate top steel mesh (A8).

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