Gantry double-station lifting device with synchronous lifting structure

Abstract

The invention discloses a gantry double-station lifting device with a synchronous lifting structure, and relates to the technical field of gantry double-station lifting devices.The gantry double-station lifting device with the synchronous lifting structure comprises end beam structures, the end beam structures are symmetrically arranged, and the upper ends of the end beam structures are fixedly connected with a cross beam structure; a first suspension arm crane and a second suspension arm crane are connected to the cross beam structure in a sliding mode. When the crane is used, the relative positions of the first crane jib and the second crane jib can be monitored in real time through a stop structure composed of the mounting base, the sliding groove, the lifting air cylinder and the like, and when the relative distances of the first crane jib and the second crane jib are not synchronous, the crane jib can quickly respond to achieve sudden stop; the dangerous conditions such as object inclination and falling caused by inconsistent relative positions of the two suspension arm cranes are effectively avoided, the safety and the reliability of hoisting operation are greatly improved, and the accident occurrence probability is reduced.

Description

Technical Field

[0001] The present invention specifically relates to the technical field of gantry double-station lifting devices, in particular to a gantry double-station lifting device with a synchronous lifting structure. Background Art

[0002] Lifting and handling heavy objects is a common requirement in many fields, including industrial production, logistics and warehousing, and construction. Gantry cranes are widely used due to their robust structure and ample operating space. Their dual-station design allows for simultaneous lifting and handling of two loads, allowing one station to simultaneously prepare for work at another, significantly improving efficiency. These cranes are in high demand in large factories, ports, and other locations.

[0003] Traditional gantry cranes do not have a synchronous lifting structure, and the lifting and lowering of the two ends are prone to be out of sync during the lifting process, causing the cargo to tilt and shake. This not only affects the lifting accuracy, but may also cause safety accidents such as cargo falling, posing a threat to the safety of equipment and personnel.

[0004] A single-station lifting device can only handle one piece of cargo at a time. When multiple batches of cargo need to be lifted frequently, back-and-forth operations are required, which consumes a lot of time, makes it difficult to meet the efficient production rhythm, and increases operating costs. Summary of the Invention

[0005] The purpose of the present invention is to provide a gantry double-station lifting device with a synchronous lifting structure. By installing the end beam structure and the cross beam structure and using them in conjunction with the first boom crane and the second boom crane, the synchronization of the gantry double-station lifting device is guaranteed and fault protection can be provided at the same time; so as to solve the technical problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A gantry double-station lifting device with a synchronous lifting structure, comprising The end beam structure is symmetrically arranged, and the upper end is fixedly connected to the cross beam structure; the cross beam structure is slidably connected to the first boom crane and the second boom crane; The jib crane 1 and the jib crane 2 are composed of the same structure; The crossbeam structure includes a connecting seat, which is symmetrically arranged on the lower surface of both ends of the hanging beam, and the bottom of the connecting seat is fixedly connected to the telescopic frame; the two sides of the hanging beam are slidably connected to the boom crane 1 and the boom crane 2; A mounting seat is fixedly installed at the center position of the upper surface of the hanging beam, and sliding grooves are symmetrically provided on the inner side of the mounting seat. The two sliding grooves are respectively slidably connected to the sliding column one and the sliding column two.

[0007] As a further technical solution of the present invention, a lifting cylinder is symmetrically mounted on the upper surface of the mounting seat, and a clamping column is fixedly mounted on the lifting cylinder.

[0008] As a further technical solution of the present invention, the upper surface of the sliding column is provided with a plurality of fixing holes in a rectangular array, and one end of the sliding column is connected to a fixed link, and the other end of the fixed link is fixedly connected to a fixing seat.

[0009] As a further technical solution of the present invention, the fixed seat is fixedly installed on one side of the electric hoist, the upper end of the electric hoist is fixedly connected to the electric moving device, and the inner side of the upper end of the electric moving device is slidably connected to both sides of the lifting beam; a limiter is installed at the lower hook steel cable at the lower end of the electric hoist.

[0010] As a further technical solution of the present invention, a hydraulic sensor and a conical spring are provided on the lower surface of the limiter. The conical spring surrounds the lower hook steel cable at the lower end of the electric hoist, and the bottom is movably connected to the outer surface of the lower hook; the hydraulic sensor is located at the upper end of the conical spring; and an angle sensor is also installed at the lower hook steel cable at the lower end of the electric hoist.

[0011] As a further technical solution of the present invention, the upper surface of the sliding column 2 is provided with multiple fixing holes 2 in a rectangular array, and the ends of the sliding column 2 are connected to the fixed link 2, and the other end of the fixed link 2 is fixedly connected to one side of the boom crane 2.

[0012] As a further technical solution of the present invention, the plurality of first fixing holes and the plurality of second fixing holes are slidably connected to the clamping column at the upper end.

[0013] As a further technical solution of the present invention, the telescopic frame is provided with a plurality of upper positioning holes in a rectangular array, and the upper positioning holes are provided on the telescopic frame in a through-type manner, and the telescopic frame is slidingly connected to the inner side of the support frame; an upper ear plate is symmetrically installed on one side of the telescopic frame, and the upper ear plate is connected to the upper end of the telescopic cylinder.

[0014] As a further technical solution of the present invention, the lower end of the telescopic cylinder is connected to the lower ear plate, and the lower ear plate is symmetrically installed on one side of the support frame. The support frame is provided with multiple lower positioning holes in a rectangular array, and the lower positioning holes are arranged through the support frame.

[0015] As a further technical solution of the present invention, the lower positioning hole on the support frame and the upper positioning hole on the telescopic frame can be connected by bolts; the bottom and lower end of the support frame are symmetrically equipped with pulleys and adjustment legs.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention, when in use, can monitor the relative positions of the first boom crane and the second boom crane in real time through the stop structure composed of the mounting base, the slide, the lifting cylinder and other components. When the relative distance between the two boom cranes is out of sync, it can quickly respond and achieve an emergency stop. This effectively avoids dangerous situations such as objects tilting or falling due to the inconsistent relative positions of the two boom cranes, greatly improves the safety and reliability of the lifting operation, and reduces the probability of accidents. According to the present invention, when a jib crane 1 or jib crane 2 fails, the lifting cylinder and the locking column can immediately lock the faulty slide column 1 or slide column 2, preventing the fault from further expanding and reducing the economic losses and safety hazards caused by the equipment failure. At the same time, this rapid emergency mechanism also creates favorable conditions for subsequent fault investigation and maintenance. The invention uses a telescopic frame and a supporting frame in conjunction with a telescopic cylinder to achieve flexible adjustment of the overall height of the device. By setting different heights, it can meet the lifting needs of objects of different heights and specifications, expand the application scenarios of the gantry double-station lifting device, and improve the versatility and practicality of the equipment. In the present invention, the pulleys and the adjustment legs at the bottom of the support frame cooperate with each other. When the device is moved, the pulleys provide convenient movement. During operation, the adjustment legs can provide stable support and horizontal adjustment for the device, ensuring the stability of the device during the lifting operation and ensuring the smooth progress of the lifting operation. The present invention enables the jib crane to accurately determine the position and load status of the hook through dual monitoring of the angle sensor and the hydraulic sensor, timely trigger the limit action, and effectively prevent the hook from descending beyond the limit position, rising beyond the limit position, hitting the top, and tilting, thereby avoiding the occurrence of safety accidents such as heavy objects falling, and ensuring the safety of personnel and equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0018] Figure 2 In the present invention Figure 1 Bottom view of .

[0019] Figure 3 In the present invention Figure 2 Top view of .

[0020] Figure 4 In the present invention Figure 1 Right view of .

[0021] Figure 5 In the present invention Figure 1 Schematic diagram of the split structure.

[0022] Figure 6 In the present invention Figure 5 Bottom view of .

[0023] Figure 7 In the present invention Figure 5 Front view of.

[0024] Figure 8 In the present invention Figure 2 A partial enlarged schematic diagram.

[0025] Figure 9 In the present invention Figure 5 A partial enlarged schematic diagram.

[0026] Figure 10 In the present invention Figure 6 A partial enlarged schematic diagram.

[0027] Figure 11 In the present invention Figure 7 A partial enlarged schematic diagram.

[0028] In the figure: 1-end beam structure, 2-cross beam structure, 3-jib crane 1, 4-jib crane 2; 11-support frame, 12-pulley, 13-adjustable legs, 14-lower positioning hole, 15-telescopic frame, 16-upper positioning hole, 17-lower ear plate, 18-telescopic cylinder, 19-upper ear plate; 21-Connecting seat, 22-Lifting beam, 23-Mounting seat, 24-Slide groove, 25-Lifting cylinder, 26-Clamping column, 27-Sliding column 1, 28-Fixing hole 1, 29-Fixed connecting rod 1, 210-Sliding column 2, 211-Fixed hole 2, 212-Fixed connecting rod 2; 31-Electric moving device, 32-Electric hoist, 33-Limiter, 34-Hydraulic sensor, 35-Conical spring, 36-Angle sensor, 37-Fixed seat. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1-11 In an embodiment of the present invention, a gantry double-station lifting device with a synchronous lifting structure includes an end beam structure 1, which is symmetrically arranged and fixedly connected to a cross beam structure 2 at its upper end; a boom crane 1 3 and a boom crane 2 4 are slidably connected to the cross beam structure 2 respectively; The jib crane 1 3 and the jib crane 2 4 are composed of the same structure; The crossbeam structure 2 includes a connecting seat 21, which is symmetrically arranged on the lower surface of both ends of the hanging beam 22, and the bottom of the connecting seat 21 is fixedly connected to the telescopic frame 15; the two sides of the hanging beam 22 are slidably connected to the boom crane 1 3 and the boom crane 2 4; A mounting seat 23 is fixedly mounted at the center of the upper surface of the hanging beam 22. Slide grooves 24 are symmetrically arranged on the inner side of the mounting seat 23. The two slide grooves 24 are slidably connected to the slide post 1 27 and the slide post 2 210 respectively. The upper surface of the mounting seat 23 is symmetrically mounted with a lifting cylinder 25, and a clamping column 26 is fixedly mounted on the lifting cylinder 25; The upper surface of the sliding column 27 is provided with a plurality of fixing holes 28 in a rectangular array, and the end of the sliding column 27 is connected to a fixing link 29, and the other end of the fixing link 29 is fixedly connected to a fixing seat 37; The upper surface of the second sliding column 210 is provided with a plurality of second fixing holes 211 in a rectangular array, and the end of the second sliding column 210 is connected to the second fixing link 212, and the other end of the second fixing link 212 is fixedly connected to one side of the second boom crane 4; The plurality of first fixing holes 28 and the plurality of second fixing holes 211 are slidably connected to the upper end of the clamping column 26 .

[0031] By adopting the above technical solution, when in use, the stop structure composed of the mounting base 23, the slide 24, the lifting cylinder 25 and other components can monitor the relative positions of the boom crane 1 3 and the boom crane 2 4 in real time. When the relative distance between the two is out of sync, a rapid response can be made to achieve an emergency stop. This effectively avoids dangerous situations such as objects tilting or falling due to the inconsistent relative positions of the two boom cranes, greatly improving the safety and reliability of the lifting operation and reducing the probability of accidents. When a jib crane 3 or a jib crane 2 4 fails, the lifting cylinder 25 and the locking column 26 can immediately lock the faulty slide column 1 27 or the slide column 2 210 to prevent the fault from further expanding, thereby reducing the economic losses and safety hazards caused by the equipment failure. At the same time, this rapid emergency mechanism also creates favorable conditions for subsequent troubleshooting and maintenance.

[0032] In this embodiment, the fixing seat 37 is fixedly installed on one side of the electric hoist 32. The upper end of the electric hoist 32 is fixedly connected to the electric moving device 31. The inner side of the upper end of the electric moving device 31 is slidably connected to both sides of the hanging beam 22. A limiter 33 is installed at the lower hook cable of the lower end of the electric hoist 32. A hydraulic sensor 34 and a conical spring 35 are provided on the lower surface of the limiter 33. The conical spring 35 surrounds the lower hook steel cable at the lower end of the electric hoist 32, and the bottom is movably connected to the outer surface of the lower hook; the hydraulic sensor 34 is located at the upper end of the conical spring 35; and an angle sensor 36 is also installed at the lower hook steel cable at the lower end of the electric hoist 32.

[0033] By adopting the above technical solution, the jib crane 3 can accurately determine the position and load status of the hook through dual monitoring of the angle sensor 36 and the hydraulic sensor 34, and trigger the limit action in time, effectively preventing the hook from descending beyond the limit position, rising beyond the limit position, hitting the top, and tilting, avoiding the occurrence of safety accidents such as heavy objects falling, and ensuring the safety of personnel and equipment.

[0034] In this embodiment, the telescopic frame 15 is provided with a plurality of upper positioning holes 16 in a rectangular array. The upper positioning holes 16 are provided on the telescopic frame 15 in a penetrating manner. The telescopic frame 15 is slidably connected to the inner side of the support frame 11. An upper ear plate 19 is symmetrically installed on one side of the telescopic frame 15. The upper ear plate 19 is connected to the upper end of the telescopic cylinder 18. The lower end of the telescopic cylinder 18 is connected to the lower ear plate 17, and the lower ear plate 17 is symmetrically installed on one side of the support frame 11. The support frame 11 is provided with a plurality of lower positioning holes 14 in a rectangular array, and the lower positioning holes 14 are provided on the support frame 11 in a through-type manner.

[0035] By adopting the above technical solution, the telescopic frame 15 and the support frame 11 cooperate with the telescopic cylinder 18 to realize flexible adjustment of the overall height of the device. By setting different heights, it can meet the lifting needs of objects of different heights and specifications, expand the application scenarios of the gantry double-station lifting device, and improve the versatility and practicality of the equipment.

[0036] In this embodiment, the lower positioning hole 14 on the support frame 11 and the upper positioning hole 16 on the telescopic frame 15 can be connected by bolts; the pulley 12 and the adjustment leg 13 are symmetrically installed at the bottom and lower end of the support frame 11.

[0037] By adopting the above technical solution, the pulley 12 and the adjustment leg 13 at the bottom of the support frame 11 cooperate with each other. When the device moves, the pulley 12 provides convenient movement capability; during operation, the adjustment leg 13 can provide stable support and horizontal adjustment for the device, ensuring the stability of the device during the lifting operation and ensuring the smooth progress of the lifting operation.

[0038] The working principle of the present invention is as follows: in the gantry double-station lifting device with a synchronous lifting structure, the lifting beam 22 on the crossbeam structure 2 provides a sliding track for the jib crane 1 3 and the jib crane 2 4, so that the two can perform horizontal movement operations on the crossbeam; During normal operation, the jib crane 1 3 and the jib crane 2 4 move on the hanging beam 22, and the slide column 1 27 and the slide column 210 slide synchronously in the slide groove 24. When the relative distance between the two becomes out of sync, or when one of the jib cranes malfunctions, the lifting cylinder 25 is activated, driving the clamping column 26 to move downward. The clamping column 26 is inserted into the fixing hole 1 28 of the slide column 1 27 or the fixing hole 211 of the slide column 210, locking the corresponding slide column, thereby achieving an emergency stop of the faulty jib crane and preventing the accident from escalating. The lifting and lowering adjustment of the gantry double-station lifting device is completed by the cooperation of the telescopic frame 15, telescopic cylinder 18, support frame 11 and other components. When the telescopic cylinder 18 is working, it pushes the telescopic frame 15 to slide inside the support frame 11 to adjust the overall height of the device. After adjusting to the appropriate height, the telescopic frame 15 is fixed to the support frame 11 by bolts passing through the lower positioning hole 14 on the support frame 11 and the upper positioning hole 16 on the telescopic frame 15 to ensure the stability of the lifting operation. During use, the stop structure composed of the mounting base 23, the slide 24, the lifting cylinder 25 and other components can monitor the relative positions of the boom crane 1 3 and the boom crane 2 4 in real time. When the relative distance between the two is out of sync, it can react quickly and achieve an emergency stop. This effectively avoids dangerous situations such as objects tilting or falling due to the inconsistent relative positions of the two boom cranes, greatly improving the safety and reliability of the lifting operation and reducing the probability of accidents. When a jib crane 1 3 or jib crane 2 4 fails, the lifting cylinder 25 and the locking column 26 can immediately lock the faulty slide column 1 27 or slide column 2 210 to prevent the fault from further expanding, thereby reducing the economic losses and safety hazards caused by the equipment failure. At the same time, this rapid emergency mechanism also creates favorable conditions for subsequent fault investigation and maintenance. The telescopic frame 15 and the support frame 11 cooperate with the telescopic cylinder 18 to realize flexible adjustment of the overall height of the device. By setting different heights, it can meet the lifting needs of objects of different heights and specifications, expand the application scenarios of the gantry double-station lifting device, and improve the versatility and practicality of the equipment; The pulley 12 and the adjustment legs 13 at the bottom of the support frame 11 cooperate with each other. When the device is moved, the pulley 12 provides convenient movement. When operating, the adjustment legs 13 can provide stable support and horizontal adjustment for the device, ensuring the stability of the device during the lifting operation and ensuring the smooth progress of the lifting operation. When the electric hoist (32) rises and approaches the limit position, the distance between the lower hook and the limiter (33) gradually decreases. At this time, the conical spring (35) is squeezed by the lower hook and compressed. When it is compressed to a certain extent, the conical spring (35) touches the hydraulic sensor (34) located at its upper end. The hydraulic sensor (34) converts this pressure change into an electrical signal and transmits it to the control system. After receiving the signal, the control system immediately issues a command to stop the electric hoist 32, thereby preventing the electric hoist from continuing to rise and causing a collision with the top. The angle sensor 36 monitors the angle change of the lower hook cable in real time. When it detects that the angle exceeds the safe range, it immediately feeds back the signal to the control system; The jib crane 3 is able to accurately determine the position and load status of the hook through dual monitoring by the angle sensor 36 and the hydraulic sensor 34, and trigger the limit action in time, effectively preventing the hook from descending beyond the limit position, rising beyond the limit position, hitting the top, and tilting, thereby avoiding the occurrence of safety accidents such as heavy objects falling, and ensuring the safety of personnel and equipment.

[0039] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0040] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A gantry double-station lifting device with a synchronous lifting structure, characterized by: include An end beam structure (1), wherein the end beam structure (1) is symmetrically arranged, and the upper end is fixedly connected to the cross beam structure (2); the cross beam structure (2) is slidably connected to a boom crane 1 (3) and a boom crane 2 (4); The jib crane 1 (3) and the jib crane 2 (4) are composed of the same structure; The crossbeam structure (2) includes a connecting seat (21), which is symmetrically arranged on the lower surface of both ends of the hanging beam (22), and the bottom of the connecting seat (21) is fixedly connected to the telescopic frame (15); the two sides of the hanging beam (22) are slidably connected to the boom crane 1 (3) and the boom crane 2 (4); A mounting seat (23) is fixedly mounted at the center of the upper surface of the suspension beam (22), and a sliding groove (24) is symmetrically provided on the inner side of the mounting seat (23), and the two sliding grooves (24) are respectively slidably connected to the sliding column 1 (27) and the sliding column 2 (210).

2. The gantry double-station lifting device with a synchronous lifting structure according to claim 1 is characterized in that: A lifting cylinder (25) is symmetrically mounted on the upper surface of the mounting seat (23), and a clamping column (26) is fixedly mounted on the lifting cylinder (25).

3. The gantry double-station lifting device with a synchronous lifting structure according to claim 1 is characterized in that: The upper surface of the sliding column (27) is provided with a plurality of fixing holes (28) in a rectangular array, and the end of the sliding column (27) is connected to the fixed connecting rod (29), and the other end of the fixed connecting rod (29) is fixedly connected to the fixing seat (37).

4. The gantry double-station lifting device with a synchronous lifting structure according to claim 3 is characterized in that: The fixing seat (37) is fixedly installed on one side of the electric hoist (32), the upper end of the electric hoist (32) is fixedly connected to the electric moving device (31), and the inner side of the upper end of the electric moving device (31) is slidably connected to both sides of the hanging beam (22); a limiter (33) is installed at the lower hook cable of the lower end of the electric hoist (32).

5. The gantry double-station lifting device with a synchronous lifting structure according to claim 4, characterized in that: The lower surface of the limiter (33) is provided with a hydraulic sensor (34) and a conical spring (35), the conical spring (35) surrounds the lower hook steel cable at the lower end of the electric hoist (32), and the bottom is movably connected to the outer surface of the lower hook; the hydraulic sensor (34) is located at the upper end of the conical spring (35); and an angle sensor (36) is also installed at the lower hook steel cable at the lower end of the electric hoist (32).

6. The gantry double-station lifting device with a synchronous lifting structure according to claim 1, characterized in that: The upper surface of the sliding column 2 (210) is provided with a plurality of fixing holes 2 (211) in a rectangular array, and the end of the sliding column 2 (210) is connected to the fixed link 2 (212), and the other end of the fixed link 2 (212) is fixedly connected to one side of the boom crane 2 (4).

7. The gantry double-station lifting device with a synchronous lifting structure according to claim 6, characterized in that: The plurality of fixing holes one (28) and the plurality of fixing holes two (211) are slidably connected to the upper end clamping column (26).

8. The gantry double-station lifting device with a synchronous lifting structure according to claim 7, characterized in that: The telescopic frame (15) is provided with a plurality of upper positioning holes (16) in a rectangular array, and the upper positioning holes (16) are provided on the telescopic frame (15) in a penetrating manner. The telescopic frame (15) is slidably connected to the inner side of the support frame (11); an upper ear plate (19) is symmetrically installed on one side of the telescopic frame (15), and the upper ear plate (19) is connected to the upper end of the telescopic cylinder (18).

9. The gantry double-station lifting device with a synchronous lifting structure according to claim 8, characterized in that: The lower end of the telescopic cylinder (18) is connected to the lower ear plate (17), and the lower ear plate (17) is symmetrically installed on one side of the support frame (11). The support frame (11) is provided with a plurality of lower positioning holes (14) in a rectangular array, and the lower positioning holes (14) are provided on the support frame (11) in a penetrating manner.

10. The gantry double-station lifting device with a synchronous lifting structure according to claim 9, characterized in that: The lower positioning hole (14) on the support frame (11) and the upper positioning hole (16) on the telescopic frame (15) can be connected by bolts; the bottom and lower end of the support frame (11) are symmetrically equipped with pulleys (12) and adjustment legs (13).

Images