Bridge beam assembling and lifting equipment

Abstract

The invention relates to the technical field of hoisting equipment, and discloses bridge cross beam assembling and hoisting equipment which comprises two walking vehicles, the bottoms of the walking vehicles are connected with connecting seats through pulley blocks and steel cable groups, and the bottoms of the two connecting seats are connected with a hoisting frame; the mounting assembly is used for hoisting the cross beam; and the balance assembly is used for keeping the balance of the cross beam when the cross beam is hoisted. Through the arrangement of the hanging assembly, the positions of the multiple lifting hooks below the two mounting frames can be adjusted according to use requirements before lifting, so that the multiple lifting hooks correspond to the multiple lifting lugs of the cross beam in position, and the balance of the cross beam in the lifting process is guaranteed; the limiting blocks of the multiple sliding blocks can slide into the corresponding limiting grooves correspondingly, so that the effect of limiting and fixing the lifting hooks is achieved, the multiple lifting hooks cannot move in the lifting process, and therefore the quality and safety of lifting operation are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of lifting equipment, and particularly relates to a lifting equipment for bridge crossbeam assembly. Background Art

[0002] In bridge construction projects, the lifting of crossbeams is a crucial construction link. With the continuous increase in bridge span and the increasing complexity of the structure, higher requirements are put forward for the performance and efficiency of lifting equipment. Currently, cable cranes are widely used in the lifting construction of bridge crossbeams. With its powerful lifting capacity, it can accurately lift large bridge crossbeams to the designated position. The cable crane mainly consists of main cables, tower racks, anchoring systems, trolleys, hoisting systems, and traction systems, etc. Its basic principle is: the main cable is used as a load-bearing member, fixed at both ends to the anchoring system, the tower rack is used to support the main cable to form a lifting space with a certain height and span, the trolley can move on the main cable, the hoisting system realizes the lifting and lowering of heavy objects by winding and unwinding steel ropes through equipment such as winches, and the traction system drives the trolley to move horizontally on the main cable, so that heavy objects can be lifted and transported within the specified space range. By the coordinated work of these components, the lifting and transportation of heavy objects are realized.

[0003] Chinese Patent CN207090832U discloses a "cable crane", which includes a tower rack system, a load-bearing system, a trolley system, a hanging rack system, a hoisting system, and a traction system. Two groups of load-bearing cables are supported on the left and right saddles of the tower rack, and four trolleys are respectively slidably arranged on the load-bearing cables. The lower hanging rack is suspended below each trolley through a hoisting cable, and the front and rear traction cables are respectively connected to each trolley to drive each trolley to move along the load-bearing cable. The left and right saddles are respectively slidably arranged on the front and rear tower racks. This cable crane can solve the technical problems of poor flexibility and limited lifting range of the cable crane.

[0004] However, in the prior art, there are the following problems:

[0005] When the prior art hoists a bridge crossbeam, multiple workers are required to socket and fix multiple steel cables between the lifting tool and the crossbeam. The hooks on the existing lifting tools are usually fixedly arranged. When hoisting crossbeams of different specifications, it may occur that the position of the lifting lug of the crossbeam does not match the hook of the lifting tool, resulting in the inclination of some steel cables after socketing and fixing, thus affecting the balance of the crossbeam, causing the crossbeam to shake easily during hoisting, generating great potential safety hazards. At the same time, the shaking bridge is not convenient for workers to install and fix. Summary of the Invention

[0006] The purpose of the present invention is to provide a lifting equipment for bridge crossbeam assembly to solve the above problems, and to overcome the defect that the hook of the lifting tool in the prior art may not match the lifting lug of the crossbeam, thus affecting the balance after the crossbeam is lifted, as described in detail below.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A bridge crossbeam assembly hoisting device provided by the present invention includes two traveling vehicles. The bottom of the traveling vehicle is connected with a connecting seat through a pulley group and a steel cable group. The bottom of the two connecting seats is connected with a hoisting frame. It further includes a hanging component for hoisting the crossbeam and a balancing component for keeping the crossbeam balanced during hoisting. The hanging component includes two mounting frames. The two mounting frames are connected to the bottom surface of the hoisting frame. A resilient sliding plate is slidably connected to the inner wall of the mounting frame. A plurality of sliders are slidably connected to the bottom surface of the resilient sliding plate. Limiting blocks are respectively connected to the front and rear sides of the slider. A hook is installed on the bottom surface of the slider. A set of limiting grooves are respectively arranged on the inner walls of the front and rear sides of the mounting frame.

[0009] Preferably, a plurality of springs are arranged between the top surface of the resilient sliding plate and the bottom surface of the mounting frame. The two resilient sliding plates are arranged in a mirror image. A set of limiting grooves has a plurality of them. The multiple limiting grooves in the same group are arranged side by side. The upper half of the limiting groove is trapezoidal in shape, and the lower half of the limiting groove is rectangular in shape.

[0010] Preferably, the limiting block is of the same size as the lower half of the limiting groove. The limiting block enters the lower half of one of the limiting grooves during movement, and the resilient sliding plate abuts against the tops of the two sets of limiting grooves during movement.

[0011] Preferably, two push rods are connected to the bottom of the resilient sliding plate. Two swing arms are hinged to the outer wall of the mounting frame. A clamping plate is connected between the ends of the two swing arms away from the mounting frame.

[0012] Preferably, a chute is opened at the central position of the swing arm. The two push rods are respectively slidably connected to the chutes of the two swing arms through bearings. An opening is provided on the hook. The clamping plate abuts against the openings of a plurality of hooks during movement.

[0013] Preferably, the balancing component includes a first layer plate and a second layer plate. Both the first layer plate and the second layer plate are connected between the two mounting frames. The first layer plate is located above the second layer plate. Two slideway plates are rotatably installed on the first layer plate. Steel balls are arranged on the two slideway plates. A concave-shaped frame is slidably connected through the first layer plate. Two rollers are rotatably installed between the two mounting frames. A transmission belt is sleeved on the outer walls of the two rollers. Two brackets are connected to the bottom surface of the second layer plate. A counterweight is connected to the bottom surface of the transmission belt. A plurality of rollers are respectively arranged on the front and rear sides of the counterweight.

[0014] Preferably, the slide plate is provided with a through groove, the concave frame is located in the through grooves of the two slide plates, the steel ball is located on the inner side of the concave frame, the bottom surface of the concave frame is connected to the top surface of the transmission belt, the multiple rollers on both sides of the counterweight block are in rolling contact with the two brackets respectively, the second layer plate is provided with a long groove, and the connection position of the transmission belt and the counterweight block is located in the long groove of the second layer plate.

[0015] Preferably, a top frame is connected between the two shifting rods on the right and between the two shifting rods on the left, respectively, and the tops of the two top frames are in contact with the ends of the two slide plates away from each other during the movement.

[0016] Preferably, two liquid tanks are connected to the bottom surface of the second layer of plate, and the two liquid tanks are respectively located below the two top frames; two air bags are installed on the first layer of plate, and the two air bags are respectively located on the movement tracks of the two slide plates away from one end of each other; the two air bags are respectively connected to the two liquid tanks through air pipes; the bottom of the liquid tank is connected to a liquid pipe through a tee; spray pipes are respectively connected between the two ends of the two liquid pipes, and a plurality of atomizing nozzles are arranged on the spray pipes.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The bridge beam is equipped with a lifting device. Through the setting of the mounting assembly, the multiple hooks under the two mounting frames can be adjusted according to the use requirements before lifting to ensure the position correspondence between the multiple hooks and the multiple lifting ears of the beam, thereby ensuring the balance of the beam during the lifting process, and after lifting, the limit blocks of the multiple sliders can slide into the corresponding limit grooves respectively, thereby achieving the limiting and fixing effect of the hooks, so that the multiple hooks will not move during the lifting process, thereby ensuring the quality and safety of the lifting operation; through the setting of the buckle plate, after lifting, the buckle plate can automatically buckle the openings of the multiple hooks to play a role in preventing them from falling off, further improving the safety of the lifting operation.

[0019] 2. The bridge beam is equipped with lifting equipment. Through the setting of the balancing component, the steel ball, concave frame, transmission belt and counterweight block can cooperate to achieve the goal that the counterweight block can slide in the direction opposite to the shaking direction of the lifting frame, thereby adjusting the center of gravity of the lifting frame, thereby reducing the amplitude of shaking, compensating for the influence of inertia force, thereby improving the stability of the beam during lifting and minimizing the amplitude of shaking; through the cooperation of two top frames and two slide plates, the two slide plates can automatically tilt up when the lifting frame is unloaded, so that the steel ball can be reset and temporarily stop rolling, thereby reducing the wear of the steel ball and extending its service life; through the setting of two liquid tanks, the two spray pipes can spray lubricant on multiple rollers on both sides of the counterweight block during lifting, thereby reducing the friction when the counterweight block moves and ensuring the center of gravity adjustment effect of the counterweight block. Brief Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 is the overall structural schematic diagram of the present invention;

[0022] Figure 2 is the structural schematic diagram of the mounting component of the present invention;

[0023] Figure 3 is the structural schematic diagram of the mounting bracket of the present invention;

[0024] Figure 4 is the structural schematic diagram of the slider of the present invention;

[0025] Figure 5 is the structural schematic diagram of the limiting groove of the present invention;

[0026] Figure 6 is the structural schematic diagram of the buckle plate of the present invention;

[0027] Figure 7 is the structural schematic diagram of the balance component of the present invention;

[0028] Figure 8 is the structural schematic diagram of the slideway plate of the present invention;

[0029] Figure 9 is the structural schematic diagram of the bracket of the present invention;

[0030] Figure 10 is the structural schematic diagram of the counterweight of the present invention;

[0031] Figure 11 is the structural schematic diagram of the transmission belt of the present invention;

[0032] Figure 12 is the structural schematic diagram of the liquid tank of the present invention;

[0033] Figure 13 is the structural schematic diagram of the spray pipe of the present invention.

[0034] The description of the reference numerals is as follows: 1, traveling vehicle; 2, connecting seat; 3, lifting frame; 4, mounting component; 41, mounting bracket; 42, resilient slide plate; 43, slider; 44, limiting block; 45, lifting hook; 46, limiting groove; 47, lever; 48, swing arm; 49, buckle plate; 5, balance component; 51, first layer plate; 52, second layer plate; 53, slideway plate; 54, steel ball; 55, concave-shaped frame; 56, roller; 57, transmission belt; 58, bracket; 59, counterweight; 510, roller; 511, top frame; 512, liquid tank; 513, airbag; 514, liquid pipe; 515, spray pipe. Detailed implementation manners

[0035] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Apparently, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other implementation manners obtained by those of ordinary skill in the art without making creative efforts shall fall within the scope protected by the present invention.

[0036] Embodiment 1

[0037] Please refer to Figure 1 - Figure 6 , a hoisting device for assembling bridge crossbeams, comprising two traveling vehicles 1. The bottom of the traveling vehicle 1 is connected with a connecting seat 2 through a pulley group and a steel cable group. The bottoms of the two connecting seats 2 are connected with a lifting frame 3. A winch and a traveling driving device are arranged in the traveling vehicle 1. The two traveling vehicles 1 are respectively hung on two cables and travel through the traveling driving device to realize forward and backward movement. The winches in the two traveling vehicles 1 can drive the lifting frame 3 to move up and down through the pulley group, the steel cable group and the two connecting seats 2, thereby realizing the effects of the up and down movement and the forward and backward movement of the lifting frame 3.

[0038] Furthermore, it further includes a mounting component 4 for hoisting the cross beam; the mounting component 4 includes two mounting brackets 41, the two mounting brackets 41 are connected to the bottom surface of the hoisting bracket 3, a resilient slide plate 42 is slidably connected to the inner wall of the mounting bracket 41, a plurality of sliders 43 are slidably connected to the bottom surface of the resilient slide plate 42, limiting blocks 44 are respectively connected to the front and rear sides of the slider 43, a hook 45 is mounted on the bottom surface of the slider 43, a set of limiting grooves 46 are respectively arranged on the inner walls of the front and rear sides of the mounting bracket 41, and a plurality of springs are arranged between the top surface of the resilient slide plate 42 and the bottom surface of the mounting bracket 41. The two resilient slide plates 42 are arranged in a mirror image. The plurality of hooks 45 can move left and right. When the hook 45 moves, the slider 43 connected thereto slides synchronously on the resilient slide plate 42. At this time, the two limiting blocks 44 on the slider 43 are located above the two sets of limiting grooves 46, and the slider 43 does not contact the limiting groove 46 when moving. Therefore, the staff can flexibly adjust the positions of the plurality of hooks 45 to make the positions of the plurality of hooks 45 correspond to the plurality of lifting lugs of the cross beam, so that the plurality of steel cables after hoisting can be kept vertical. A set of limiting grooves 46 are provided with a plurality of them, and the plurality of limiting grooves 46 in the same group are arranged side by side. The upper half of the limiting groove 46 is trapezoidal in reverse, and the lower half of the limiting groove 46 is rectangular. The limiting block 44 matches the size of the lower half of the limiting groove 46. The limiting block 44 enters the lower half of one of the limiting grooves 46 during the movement process, and the resilient slide plate 42 abuts against the tops of the two sets of limiting grooves 46 during the movement process. After hoisting, due to the gravity of the cross beam, the plurality of hooks 45, the plurality of sliders 43 and the resilient slide plate 42 drop. When the limiting block 44 moves downwards, it slides along the upper half of the trapezoid of one of the limiting grooves 46 below it into the lower half of the rectangle of the limiting groove 46, so that the limiting blocks 44 on the plurality of sliders 43 respectively slide into the corresponding limiting grooves 46. The two sets of limiting grooves 46 play a supporting role at this time, and the plurality of sliders 43 are temporarily fixed and cannot slide left and right, so that the plurality of hooks 45 cannot slide left and right during hoisting, thereby improving the stability during hoisting. Through the setting of the mounting component 4, the plurality of hooks 45 below the two mounting brackets 41 can adjust their positions according to the use requirements before hoisting to ensure that the positions of the plurality of hooks 45 correspond to the plurality of lifting lugs of the cross beam, thereby ensuring the balance of the cross beam during hoisting. And after hoisting, the limiting blocks 44 of the plurality of sliders 43 can respectively slide into the corresponding limiting grooves 46, thereby realizing the limiting and fixing effect on the hook 45, so that the plurality of hooks 45 will not move during hoisting, thereby ensuring the quality and safety of the hoisting operation.

[0039] Furthermore, two levers 47 are connected to the bottom of the rebound slide plate 42, and two swing arms 48 are hinged on the outer wall of the mounting frame 41. A pinch plate 49 is connected between the ends of the two swing arms 48 away from the mounting frame 41, and a slide groove is provided at the center of the swing arm 48. The two levers 47 are slidably connected to the slide grooves of the two swing arms 48 through bearings, and an opening is provided on the hook 45. The pinch plate 49 resists the openings of multiple hooks 45 during movement. The two levers 47 drive the two swing arms 48 to swing downward through the bearings, and the two swing arms 48 drive the pinch plates 49 to swing downward, so that the two pinch plates 49 are placed on the openings of multiple hooks 45, temporarily blocking the openings of multiple hooks 45 to prevent some steel cables from falling off the hooks 45 during the lifting process. Through the setting of the pinch plates 49, after lifting, the pinch plates 49 can automatically buckle the openings of multiple hooks 45, play a role in preventing falling off, and further improve the safety of the lifting operation.

[0040] Also, see Figure 1 , Figure 7 - Figure 13 The balancing assembly 5 is used to keep the beam balanced when the beam is hoisted; the balancing assembly 5 includes a first layer plate 51 and a second layer plate 52, both of which are connected between two mounting frames 41, the first layer plate 51 is located above the second layer plate 52, two slide plates 53 are rotatably mounted on the first layer plate 51, and steel balls 54 are arranged on the two slide plates 53, a concave frame 55 is slidably connected through the first layer plate 51, and two slide plates 53 are rotatably mounted between the two mounting frames 41. The outer walls of the two rollers 56 are sleeved with a transmission belt 57, the bottom surface of the second layer plate 52 is connected to two brackets 58, the bottom surface of the transmission belt 57 is connected to a counterweight 59, and the front and rear sides of the counterweight 59 are respectively provided with a plurality of rollers 510, a through groove is provided on the slide plate 53, a concave frame 55 is located in the through grooves of the two slide plates 53, a steel ball 54 is located on the inner side of the concave frame 55, the bottom surface of the concave frame 55 is connected to the top surface of the transmission belt 57, and the counterweight 59 is provided with a plurality of rollers 510. The multiple rollers 510 on both sides are in rolling contact with the two brackets 58 respectively, and a long groove is provided on the second layer plate 52. The connection position of the transmission belt 57 and the counterweight block 59 is located in the long groove of the second layer plate 52. When the steel ball 54 drives the concave frame 55 to move, the transmission belt 57 can drive the counterweight block 59 to move in the opposite direction. When the lifting frame 3 swings to the left, the steel ball 54 drives the concave frame 55 to move left and the counterweight block 59 to move right, so that the center of gravity of the lifting frame 3 is offset to the right, and the amplitude of the swing of the lifting frame 3 to the left is reduced again, thereby achieving the effect of adjusting the center of gravity offset and reducing the swing. Through the setting of the balancing component 5, the steel ball 54, the concave frame 55, the transmission belt 57 and the counterweight block 59 are coordinated to achieve the counterweight block 59 being able to slide in the direction opposite to the swing direction of the lifting frame 3, thereby adjusting the center of gravity of the lifting frame 3, thereby reducing the swing amplitude and compensating for the influence of the inertial force, thereby improving the stability of the beam during hoisting and minimizing the swing amplitude.

[0041] In addition, a top frame 511 is respectively connected between the two levers 47 on the right side and between the two levers 47 on the left side. During the movement, the tops of the two top frames 511 respectively contact the ends of the two slide plates 53 that are away from each other. After the cross beam is in place, the four levers 47 move upward and drive the two top frames 511 to move upward. The two top frames 511 drive the two slide plates 53 to tilt upward, forming a V shape for the two slide plates 53, so that the steel balls 54 slide along the two slide plates 53 to between the two slide plates 53, achieving the effect of resetting the steel balls 54. When the lifting frame 3 is unloaded, the steel balls 54 will not roll, thereby reducing the wear of the steel balls 54. Through the cooperation of the two top frames 511 and the two slide plates 53, the two slide plates 53 can automatically tilt upward when the lifting frame 3 is unloaded, resetting the steel balls 54 and temporarily stopping them from rolling, thereby reducing the wear of the steel balls 54 and extending their service life.

[0042] It should be noted that two liquid tanks 512 are connected to the bottom surface of the second-layer plate 52. The two liquid tanks 512 are filled with lubricant. The two liquid tanks 512 are respectively located below the two top frames 511. Two air bags 513 are installed on the first-layer plate 51. The two air bags 513 are respectively located on the movement trajectories of the ends of the two slide plates 53 that are away from each other. When the two slide plates 53 swing downward, they respectively squeeze the two air bags 513. The two air bags 513 are respectively connected to the two liquid tanks 512 through air pipes. The bottom of the liquid tank 512 is connected to a liquid pipe 514 through a tee. Spray pipes 515 are respectively connected between the two ends of the two liquid pipes 514. A plurality of atomizing nozzles are arranged on the spray pipes 515. After being squeezed, the two air bags 513 respectively inject air into the two liquid tanks 512 through the air pipes, enabling the two liquid tanks 512 to respectively convey the lubricant to the two spray pipes 515 through the two liquid pipes 514. The plurality of atomizing nozzles spray the lubricant on the plurality of rollers 510, thereby reducing the friction between the rollers 510 and the bracket 58, and further reducing the friction received when the counterweight 59 moves. Through the arrangement of the two liquid tanks 512, the two spray pipes 515 can spray the lubricant on the plurality of rollers 510 on both sides of the counterweight 59 during lifting, thereby reducing the friction when the counterweight 59 moves and ensuring the effect of adjusting the center of gravity of the counterweight 59.

[0043] With the above structure, the working principle of this case is as follows: A winch and a traveling drive device are arranged in the traveling vehicle 1. The two traveling vehicles 1 are respectively hung on two cables and move forward and backward through the traveling drive device. The winches in the two traveling vehicles 1 can drive the lifting frame 3 to move up and down through the pulley block, the steel cable group and the two connecting seats 2, thus achieving the effects of the lifting frame 3 moving up and down and moving forward and backward. During hoisting, taking one of the mounting frames 41 as an example, the staff first passes multiple steel cables through the multiple lifting lugs of the cross beam, and then respectively hangs the multiple steel cables on the multiple hooks 45 below the mounting frame 41. Before hoisting, the multiple hooks 45 can move left and right. When the hook 45 moves, the slider 43 connected to it slides synchronously on the resilient slide plate 42. At this time, the two limit blocks 44 on the slider 43 are located above the two groups of limit slots 46, and the slider 43 does not contact the limit slots 46 when moving. Therefore, the staff can flexibly adjust the positions of the multiple hooks 45 to make the positions of the multiple hooks 45 correspond to the multiple lifting lugs of the cross beam, so that the multiple steel cables after hoisting can remain vertical. After hoisting, due to the gravity of the cross beam, the multiple hooks 45, the multiple sliders 43 and the resilient slide plate 42 fall. Since the multiple limit slots 46 in the same group are arranged side by side, a triangle is formed at the top of the connection between two adjacent limit slots 46. Therefore, when the limit block 44 moves down, it will slide along the upper half of the trapezoid of one of the limit slots 46 below it into the lower rectangular part of the limit slot 46, so that the limit blocks 44 on the multiple sliders 43 slide into the corresponding limit slots 46 respectively. After the limit blocks 44 on both sides of the slider 43 slide into the two limit slots 46, the two limit blocks 44 rest on the bottoms of the two limit slots 46. At the same time, the resilient slide plate 42 rests on the tops of the two groups of limit slots 46. The two groups of limit slots 46 play a supporting role at this time, and the multiple sliders 43 are temporarily fixed and cannot slide left and right, so that the multiple hooks 45 cannot slide left and right during hoisting, thereby improving the stability during hoisting; while the resilient slide plate 42 moves down, the resilient slide plate 42 drives the two shift rods 47 to move down. The two shift rods 47 respectively drive the two swing arms 48 to swing downward through the bearings. The two swing arms 48 drive the buckle plate 49 to swing downward. When the two swing arms 48 move in place, the two buckle plates 49 rest on the openings of the multiple hooks 45 to temporarily block the openings of the multiple hooks 45, preventing some steel cables from falling off the hooks 45 during hoisting, thereby increasing the safety risk. When the cross beam is placed in place, the lifting frame 3 moves slightly downward to bend the multiple steel cables. At this time, the self-weight of the cross beam no longer acts on the multiple hooks 45. The resilient slide plate 42 is reset by the elastic force of the multiple springs, and the multiple hooks 45 can move again. The buckle plate 49 also swings and resets accordingly, without affecting the disassembly of the steel cables;Through the setting of the hanging component 4, multiple hooks 45 under the two mounting brackets 41 can adjust their positions according to the usage requirements before lifting, so as to ensure the position correspondence between the multiple hooks 45 and the multiple lugs of the crossbeam, thereby ensuring the balance of the crossbeam during the lifting process. After lifting, the limit blocks 44 of the multiple sliders 43 can respectively slide into the corresponding limit slots 46, thereby realizing the limit fixing effect on the hooks 45, so that the multiple hooks 45 will not move during the lifting process, thus ensuring the quality and safety of the lifting operation; through the setting of the buckle plate 49, after lifting, the buckle plate 49 can automatically buckle the openings of the multiple hooks 45, playing a role in preventing falling off and further improving the safety of the lifting operation.

[0044] When lifting, the four lever rods 47 move downward, and the four lever rods 47 respectively drive the two top frames 511 to move downward. The two slide plates 53 swing downward due to their own gravity. Finally, the two slide plates 53 are attached to the top surface of the first layer plate 51. At this time, the top surfaces of the two slide plates 53 form a slideway parallel to the first layer plate 51, and the steel balls 54 can roll left and right on the two slide plates 53. When the lifting frame 3 swings to the right, the steel balls 54 roll to the right. When the steel balls 54 roll to the right, they drive the concave frame 55 to move to the right. When the concave frame 55 moves to the right, it drives the conveyor belt 57 to rotate clockwise on the two rollers 56, causing the counterweight 59 at the bottom of the conveyor belt 57 to move to the left. When the counterweight 59 moves to the left, multiple rollers 510 on both sides of the counterweight 59 roll on the two brackets 58. The two brackets 58 play a role in supporting the counterweight 59, and the multiple rollers 510 reduce the friction generated when the counterweight 59 moves. When the steel balls 54 drive the concave frame 55 to move, the conveyor belt 57 can drive the counterweight 59 to move in the opposite direction. When the counterweight 59 moves to the left, it increases the weight on the left side of the lifting frame 3, causing the center of gravity of the lifting frame 3 to shift to the left, thereby reducing the amplitude of the rightward swing of the lifting frame 3 and making the lifting frame 3 swing to the left. Similarly, when the lifting frame 3 swings to the left, the steel balls 54 drive the concave frame 55 to move to the left, and the counterweight 59 moves to the right, causing the center of gravity of the lifting frame 3 to shift to the right, and again reducing the amplitude of the leftward swing of the lifting frame 3, thus achieving the effects of center of gravity offset adjustment and reducing swing. After the crossbeam is in place, the four lever rods 47 move upward and drive the two top frames 511 to move upward. The two top frames 511 drive the two slide plates 53 to tilt upward, forming a V shape for the two slide plates 53, so that the steel balls 54 slide along the two slide plates 53 to between the two slide plates 53, achieving the effect of resetting the steel balls 54. When the lifting frame 3 is unloaded, the steel balls 54 will not roll, thereby reducing the wear of the steel balls 54; when the two slide plates 53 swing downward, they respectively squeeze the two air bags 513. The two liquid tanks 512 are filled with lubricant. After being squeezed, the two air bags 513 respectively inject air into the two liquid tanks 512 through air pipes, causing the two liquid tanks 512 to respectively transport the lubricant to the two spray pipes 515 through the two liquid pipes 514. Multiple atomizing nozzles on the two spray pipes 515 face multiple rollers 510 on both sides of the counterweight 59. Since the lifting has just started at this time, the lifting frame 3 usually does not shake, so that the counterweight 59 remains temporarily at the center of the two brackets 58. The multiple atomizing nozzles spray the lubricant on the multiple rollers 510, thereby reducing the friction between the rollers 510 and the brackets 58 and further reducing the friction received by the counterweight 59 when it moves; through the setting of the balance assembly 5, the steel balls 54, the concave frame 55, the conveyor belt 57 and the counterweight 59 cooperate to achieve the effect that the counterweight 59 can slide in the direction opposite to the shaking direction of the lifting frame 3, thereby adjusting the center of gravity of the lifting frame 3, reducing the amplitude of shaking, compensating for the influence generated by the inertial force, and improving the stability of the crossbeam during hoisting and minimizing the amplitude of shaking as much as possible;Through the cooperation of two top frames 511 and two slide plates 53, the two slide plates 53 can automatically tilt up when the lifting frame 3 is unloaded, reset the steel balls 54 and temporarily stop them from rolling, thereby reducing the wear of the steel balls 54 and extending their service life; through the setting of two liquid tanks 512, the two spray pipes 515 can spray lubricant on multiple rollers 510 on both sides of the counterweight 59 during lifting, thereby reducing the friction when the counterweight 59 moves and ensuring the center of gravity adjustment effect of the counterweight 59.

[0045] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A bridge beam assembly and lifting device, comprising two traveling vehicles (1), characterized in that: The bottom of the traveling vehicle (1) is connected to a connecting seat (2) via a pulley block and a steel cable block, and the bottoms of the two connecting seats (2) are connected to a lifting frame (3); It also includes a mounting assembly (4) for hoisting the beam; A balancing assembly (5), used to keep the beam balanced when the beam is hoisted; The mounting assembly (4) comprises two mounting frames (41), the two mounting frames (41) are connected to the bottom surface of the lifting frame (3), the inner wall of the mounting frame (41) is slidably connected with a rebound slide plate (42), the bottom surface of the rebound slide plate (42) is slidably connected with a plurality of sliders (43), the front and rear sides of the sliders (43) are respectively connected with limiting blocks (44), the bottom surface of the sliders (43) is installed with a hook (45), and the front and rear inner walls of the mounting frame (41) are respectively provided with a group of limiting grooves (46).

2. A bridge beam assembly and lifting device according to claim 1, characterized in that: A plurality of springs are arranged between the top surface of the rebound slide plate (42) and the bottom surface of the mounting frame (41); the two rebound slide plates (42) are arranged in a mirror image; a group of the limiting grooves (46) is provided with a plurality of them; the plurality of limiting grooves (46) in the same group are arranged side by side; the upper half of the limiting groove (46) is arranged in an inverted trapezoidal shape, and the lower half of the limiting groove (46) is arranged in a rectangular shape.

3. A bridge beam assembly and lifting device according to claim 2, characterized in that: The size of the limit block (44) matches the lower half of the limit slots (46); the limit block (44) enters the lower half of one of the limit slots (46) during movement; and the rebound slide plate (42) abuts against the tops of the two groups of limit slots (46) during movement.

4. The bridge beam assembly and lifting equipment according to claim 3 is characterized in that: The bottom of the rebound slide plate (42) is connected to two levers (47), the outer wall of the mounting frame (41) is hinged to two swing arms (48), and a buckle plate (49) is connected between the ends of the two swing arms (48) away from the mounting frame (41).

5. The bridge beam assembly and lifting equipment according to claim 4, characterized in that: A sliding groove is provided at the center of the swing arm (48), and the two shifting rods (47) are slidably connected to the sliding grooves of the two swing arms (48) through bearings respectively. An opening is provided on the hook (45), and the buckle plate (49) abuts against the openings of the plurality of hooks (45) during movement.

6. The bridge beam assembly and lifting equipment according to claim 5, characterized in that: The balancing assembly (5) comprises a first layer plate (51) and a second layer plate (52), wherein the first layer plate (51) and the second layer plate (52) are both connected between two mounting frames (41), the first layer plate (51) is located above the second layer plate (52), two slide plates (53) are rotatably mounted on the first layer plate (51), the two slide plates (53) are provided with steel balls (54), a concave frame (55) is slidably connected through the first layer plate (51), two rollers (56) are rotatably mounted between the two mounting frames (41), the outer walls of the two rollers (56) are sleeved with a transmission belt (57), the bottom surface of the second layer plate (52) is connected with two brackets (58), the bottom surface of the transmission belt (57) is connected with a counterweight block (59), and a plurality of rollers (510) are respectively provided on the front and rear sides of the counterweight block (59).

7. The bridge beam assembly and lifting equipment according to claim 6, characterized in that: The slide plate (53) is provided with a through groove, the concave frame (55) is located in the through grooves of the two slide plates (53), the steel ball (54) is located on the inner side of the concave frame (55), the bottom surface of the concave frame (55) is connected to the top surface of the transmission belt (57), the multiple rollers (510) on both sides of the counterweight block (59) are in rolling contact with the two brackets (58) respectively, and the second layer plate (52) is provided with a long groove, and the connection position of the transmission belt (57) and the counterweight block (59) is located in the long groove of the second layer plate (52).

8. The bridge beam assembly and lifting equipment according to claim 7, characterized in that: A top frame (511) is connected between the two levers (47) on the right and between the two levers (47) on the left, respectively. The tops of the two top frames (511) are in contact with ends of the two slide plates (53) that are away from each other during movement.

9. The bridge beam assembly and lifting equipment according to claim 8, characterized in that: The bottom surface of the second layer plate (52) is connected to two liquid tanks (512), and the two liquid tanks (512) are respectively located below the two top frames (511). Two air bags (513) are installed on the first layer plate (51), and the two air bags (513) are respectively located on the movement tracks of the two slide plates (53) away from each other. The two air bags (513) are respectively connected to the two liquid tanks (512) through air pipes. The bottom of the liquid tank (512) is connected to a liquid pipe (514) through a tee. Spray pipes (515) are respectively connected between the two ends of the two liquid pipes (514), and a plurality of atomizing nozzles are arranged on the spray pipe (515).

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