Intelligent double-beam bridge crane with double lifting points

Abstract

The utility model relates to an intelligent double-beam bridge crane with double lifting points, which comprises a crane control system and a double-beam bridge crane body, two oppositely arranged crane carriages are slidably connected between two main beams of the double-beam bridge crane body, and lock catch devices are mounted on opposite sides of the two crane carriages. Each locking device comprises a turnover mechanism horizontally installed on the hoisting trolley, the turnover mechanisms are perpendicular to the main beam in the horizontal direction, one end of each turnover mechanism is provided with a frame structure horizontally installed on the hoisting trolley, and the two frame structures are arranged in a diagonal mode; each set of turnover mechanism is further provided with an automatic telescopic mechanism in a sleeved mode, the automatic telescopic mechanisms are arranged opposite to the rectangular frame, the ends, away from the turnover mechanisms, of the automatic telescopic mechanisms are telescopic ends, and the telescopic ends of the automatic telescopic mechanisms are provided with inverted-U-shaped lock catch plates capable of buckling the frame structure respectively. And the stability of the heavy object in the hoisting process can be improved.

Description

Technical Field

[0001] This utility model belongs to the field of crane technology, and in particular relates to an intelligent double-girder bridge crane with two lifting points. Background Technology

[0002] Currently, when moving heavy objects, it is sometimes necessary to use a double-lifting-point bridge crane for hoisting. Existing double-lifting-point bridge cranes are equipped with two lifting trolleys, each with a winch hoisting device to achieve double-lifting of the heavy object. During use, the two lifting trolleys move synchronously, which can move the heavy object along the direction of the main beam. However, in actual use, sometimes one of the lifting trolleys may slip, causing the two lifting trolleys to not move synchronously. As a result, the distance between the two lifting points on the lifting trolley will change during use, which will affect the stability of the heavy object during the hoisting process. Therefore, the existing technology still has shortcomings and deficiencies. Utility Model Content

[0003] The purpose of this invention is to provide an intelligent double-girder bridge crane with dual lifting points to solve the problems mentioned in the background art.

[0004] The technical solution adopted by this utility model to solve the above problems is as follows:

[0005] A dual-lifting-point intelligent double-girder bridge crane includes a crane control system and a double-girder bridge crane body. Two opposing lifting trolleys are slidably connected between the two main beams of the double-girder bridge crane body. One lifting trolley is the driving trolley, and the other is the driven trolley. Locking devices are installed on opposite sides of both lifting trolleys. Each locking device includes a tilting mechanism horizontally mounted on the lifting trolley. The tilting mechanism is perpendicular to the main beam in the horizontal direction, and one end of each tilting mechanism is provided with a frame structure horizontally mounted on the lifting trolley. The two sets of frame structures are arranged diagonally. Each tilting mechanism is also fitted with an automatic telescopic mechanism, which is respectively positioned opposite to the rectangular frame. The end of each automatic telescopic mechanism away from the tilting mechanism is the telescopic end. Each telescopic end of the automatic telescopic mechanism is equipped with an inverted U-shaped locking plate capable of locking the frame structure. The crane control system is signal-connected to the tilting mechanism and the automatic telescopic mechanism.

[0006] Furthermore, a first laser rangefinder connected to the crane control system is installed on the frame structure of one set of locking devices. The first laser rangefinder is located on the side of the frame structure away from the crane trolley. A first laser sensing area is provided on the other set of locking devices, which is opposite to the position of the first laser rangefinder.

[0007] Furthermore, the frame structure is a U-shaped frame, with the U-shaped opening facing the crane trolley. A groove structure that runs horizontally through the U-shaped frame is provided on the top surface of the side of the U-shaped frame away from the crane trolley. The groove structure is respectively opposite to the position of the inverted U-shaped locking plate. The inverted U-shaped locking plate includes two oppositely arranged locking plates. One locking plate is connected to the telescopic end of the automatic telescopic mechanism, and a connecting plate is installed between the two locking plates. The thickness of the connecting plate is less than or equal to the groove depth of the groove structure, and the width of the connecting plate is less than the groove width of the groove structure.

[0008] Furthermore, each inverted U-shaped locking plate is equipped with a second laser rangefinder that is connected to the crane control system signal. The second laser rangefinder is embedded on the inner side of the locking plate away from the automatic telescopic mechanism. The frame structure is provided with a second laser sensing area opposite to the position of the second laser rangefinder. The automatic telescopic mechanism is a servo electric cylinder.

[0009] Furthermore, the tilting mechanism includes a support seat horizontally mounted on the crane trolley. The support seat is rotatably connected to the frame structure by a horizontally arranged shaft that is perpendicular to the main beam in the horizontal direction. A tilting motor mounted on the support seat is drivenly connected to the shaft, and a mounting seat is also fixedly fitted on the shaft. The automatic telescopic mechanism is mounted on the mounting seat.

[0010] Furthermore, each side of the frame structure near the crane trolley is fixedly connected to a mounting plate, and each of the four corners of the mounting plate has a mounting through hole, and the tilting mechanism is respectively mounted on the mounting plate.

[0011] The beneficial effects of this utility model by adopting the above technical solution are as follows:

[0012] In use, this invention allows the distance between the two lifting points on the load to be adjusted by moving the position of the active trolley. After the automatic telescopic mechanism extends, the inverted U-shaped locking plate rotates via the flipping mechanism until it latches onto the frame structure. Then, the telescopic end of the automatic telescopic mechanism retracts, causing the inverted U-shaped locking plate to move and latch onto the frame structure. This allows the two lifting trolleys to move synchronously at a fixed distance, improving the stability of the load during lifting. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 for Figure 1 A three-dimensional structural diagram of the middle part of the device;

[0015] Figure 3 for Figure 2 A schematic diagram of the structure from a top view;

[0016] Figure 4 for Figure 2 A schematic diagram of the structure of the middle part of the device;

[0017] Figure 5 for Figure 4 A schematic diagram of the middle part of the device.

[0018] Reference numerals: 1. Automatic telescopic mechanism; 2. Tilting mechanism; 21. Support base; 22. Rotating shaft; 23. Tilting motor; 24. Mounting base; 3. Frame structure; 31. Groove structure; 4. Inverted U-shaped locking plate; 41. Locking plate; 42. Connecting plate; 5. Lifting trolley; 6. Main beam; 7. End beam; 8. Mounting plate; 81. Mounting through hole; 9. Trolley running mechanism; 10. First laser rangefinder; 11. Second laser rangefinder; 12. Trolley running mechanism; 13. Second laser sensing area. Detailed Implementation

[0019] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0020] like Figures 1 to 5 As shown, this utility model provides an intelligent double-girder bridge crane with two lifting points, including a crane control system and a double-girder bridge crane body. Specifically, both the crane control system and the double-girder bridge crane body are existing technologies. The double-girder bridge crane body includes two main beams 6 and two end beams 7, and a trolley traveling mechanism 12 is installed on the end beams 7. Two opposing lifting trolleys 5 are slidably connected between the two main beams 6 of the double-girder bridge crane body. The lifting trolleys 5 are existing technologies, and each lifting trolley 5 is equipped with a winch lifting device. One lifting trolley 5 is the active trolley, and the other lifting trolley 5 is the driven trolley. Specifically, a trolley traveling mechanism 9 with a driver is installed on the active trolley, and a trolley traveling mechanism 9 without a driver is installed on the driven trolley. In use, the distance between the two lifting points on the load can be adjusted by moving the position of the active trolley.

[0021] In addition, locking devices are installed on opposite sides of the two crane trolleys 5. Each locking device includes a tilting mechanism 2 horizontally mounted on the crane trolley 5. The tilting mechanism 2 is perpendicular to the main beam 6 in the horizontal direction, and one end of each tilting mechanism 2 is provided with a frame structure 3 horizontally mounted on the crane trolley 5. The two sets of frame structures 3 are arranged diagonally. Each tilting mechanism 2 is also equipped with an automatic telescopic mechanism 1. The automatic telescopic mechanism 1 is respectively arranged opposite to the rectangular frame 3, and the end of each automatic telescopic mechanism 1 away from the tilting mechanism 2 is the telescopic end. Each telescopic end of the automatic telescopic mechanism 1 is equipped with an inverted U-shaped locking plate 4 that can fasten the frame structure 3. Specifically, when the telescopic end of the automatic telescopic mechanism 1 is telescopic, it can drive the inverted U-shaped locking plate 4 to move slowly. The tilting mechanism 2 can drive the automatic telescopic mechanism 1 to rotate, so that the inverted U-shaped locking plate 4 rotates slowly. The crane control system is connected to the tilting mechanism 2 and the automatic telescopic mechanism 1 by signal.

[0022] When in use, after the distance between the two lifting trolleys 5 is adjusted to the correct position and the automatic telescopic mechanism 1 is extended, the inverted U-shaped locking plate 4 can be rotated by the flipping mechanism 2 until the inverted U-shaped locking plate 4 is fastened to the frame structure 3. Then, the telescopic end of the automatic telescopic mechanism 1 is retracted, which can move the inverted U-shaped locking plate 4 so that the inverted U-shaped locking plate 4 fastens to the frame structure 3 respectively. In this way, the two lifting trolleys 5 can move synchronously at a fixed distance during use, thereby improving the stability of the heavy object during the lifting process.

[0023] In addition, when it is necessary to use a lifting point to lift heavy objects, the active trolley can first move the driven trolley to the end position of the main beam 6. Then, after the extension end of the automatic telescopic mechanism 1 extends, the inverted U-shaped locking plate 4 is driven to rotate in the opposite direction by the flipping mechanism 2. At this time, the active trolley can operate independently to lift objects to meet different lifting needs.

[0024] Furthermore, such as Figure 2 and Figure 3 As shown, a first laser rangefinder 10, which is connected to the crane control system signal, is installed on the frame structure 3 of one set of locking devices. The first laser rangefinder 10 is located on the side of the frame structure 3 away from the crane trolley 5. A first laser sensing area is set on the other set of locking devices, which is opposite to the position of the first laser rangefinder 10. A sensing sticker can be set at the position of the first laser sensing area. Specifically, before use, a range value can be set in the crane control system according to the distance between the two lifting points on the heavy object. When in use, when the first laser rangefinder 10 detects that the distance between the two crane trolleys 5 has reached the set range value, the crane control system can automatically stop the active trolley from moving to facilitate use.

[0025] The specific arrangement of frame structure 3 and inverted U-shaped latch 41 is as follows: Figures 2 to 5 As shown, the frame structure 3 is a U-shaped frame, with the U-shaped opening facing the lifting trolley 5. A horizontally penetrating groove structure 31 is provided on the top surface of the U-shaped frame on the side away from the lifting trolley 5. The groove structure 31 is positioned opposite to the inverted U-shaped locking plate 4. The inverted U-shaped locking plate 4 includes two opposing locking plates 41, one of which is connected to the telescopic end of the automatic telescopic mechanism 1. A connecting plate 42 is installed between the two locking plates 41. The thickness of the connecting plate 42 is less than or equal to the groove depth of the groove structure 31, and the width of the connecting plate 42 is less than the groove width of the groove structure 31. Specifically, in use, when the inverted U-shaped locking plate 4 is fastened onto the frame structure 3, the locking plate 41, which is located away from the automatic telescopic mechanism 1, is located inside the U-shaped frame. Since the thickness of the connecting plate 42 is less than or equal to the groove depth of the groove structure 31, and the width of the connecting plate 42 is less than the groove width of the groove structure 31, in use, the flipping mechanism 2 can drive the connecting plate 42 of the inverted U-shaped locking plate 4 to flip to be located inside the groove structure 31 and in a horizontal state. Then, when the inverted U-shaped locking plate 4 fastens the frame structure 3, the locking plate 41 and the frame structure 3 can be in surface contact to ensure the reliability of the fastening position.

[0026] Furthermore, such as Figure 4 and Figure 5 As shown, each inverted U-shaped locking plate 4 is equipped with a second laser rangefinder 11 that is connected to the crane control system. The second laser rangefinder 11 is embedded in the inner side of the locking plate 41, which is located away from the automatic telescopic mechanism 1. The frame structure 3 is provided with a second laser sensing area 13 that is opposite to the position of the second laser rangefinder 11. Specifically, the second laser sensing area 13 can be set as a groove opened on the inner side of the frame structure 3, and a sensing sticker can be placed in the groove. In use, a range value can be preset in the crane control system according to the groove depth. When the first laser rangefinder 10 detects that the locking plate 41 has moved into place, the crane control system can automatically stop the telescopic end of the automatic telescopic mechanism 1 from moving. In addition, the automatic telescopic mechanism 1 is a servo electric cylinder, so the telescopic end of the automatic telescopic mechanism 1 can stop moving at any position, achieving precise position control.

[0027] The specific configuration of the flipping mechanism 2 is as follows: Figures 2 to 4As shown, the tilting mechanism 2 includes a support base 21 horizontally mounted on the crane trolley 5. A horizontally arranged rotating shaft 22, perpendicular to the main beam 6 in the horizontal direction, is rotatably connected between the support base 21 and the frame structure 3. A tilting motor 23 mounted on the support base 21 is driven onto the rotating shaft 22. A mounting base 24 is also fixedly fitted onto the rotating shaft 22, and the automatic telescopic mechanism 1 is mounted on the mounting base 24. Specifically, the tilting motor 23 is a reversible stepper motor. In use, the tilting motor 23 drives the rotating shaft 22 to rotate, and the rotating shaft 22, in turn, drives the automatic telescopic mechanism 1 to rotate via the mounting base 24. Furthermore, a multi-section telescopic rod, parallel to the automatic telescopic mechanism 1, can be installed between the mounting base 24 and the inverted U-shaped locking plate 4. The two ends of the multi-section telescopic rod are fixedly connected to the inverted U-shaped locking plate 4 and the mounting base 24, respectively. When the automatic telescopic mechanism 1 extends or retracts, it drives the multi-section telescopic rod to extend and retract synchronously, thereby improving the stability of the inverted U-shaped locking plate 4 during movement.

[0028] Furthermore, such as Figures 2 to 4 As shown, the frame structure 3 is fixedly connected to the side of the crane trolley 5 with mounting plates 8. The four corners of the mounting plates 8 are provided with mounting through holes 81, so that the mounting plates 8 can be installed on the crane trolley 5 by using bolts and other connecting parts during installation. In addition, the tilting mechanism 2 is installed on the mounting plates 8 respectively, so that the frame structure 3 and the tilting mechanism 2 can be disassembled and assembled on the crane trolley 5.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A dual-lifting-point intelligent double-girder bridge crane, comprising a crane control system and a double-girder bridge crane body, wherein two opposing lifting trolleys are slidably connected between the two main beams of the double-girder bridge crane body, characterized in that: One of the crane trolleys is the driving trolley, and the other is the driven trolley. Locking devices are installed on opposite sides of both trolleys. Each locking device includes a tilting mechanism horizontally mounted on the trolley. The tilting mechanism is perpendicular to the main beam in the horizontal direction. One end of each tilting mechanism is equipped with a frame structure horizontally mounted on the trolley, and the two sets of frame structures are arranged diagonally. Each tilting mechanism is also fitted with an automatic telescopic mechanism, which is positioned opposite the rectangular frame. The end of each automatic telescopic mechanism furthest from the tilting mechanism is the telescopic end. Each telescopic end of the automatic telescopic mechanism is equipped with an inverted U-shaped locking plate capable of locking the frame structure. The crane control system is connected to the tilting mechanism and the automatic telescopic mechanism via signals.

2. The intelligent double-girder bridge crane with dual lifting points according to claim 1, characterized in that: One set of locking devices has a first laser rangefinder installed on its frame structure, which is connected to the crane control system. The first laser rangefinder is located on the side of the frame structure away from the crane trolley. The other set of locking devices has a first laser sensing area that is opposite to the position of the first laser rangefinder.

3. The intelligent double-girder bridge crane with dual lifting points according to claim 1, characterized in that: The frame structure is a U-shaped frame, with the U-shaped opening facing the crane trolley. A groove structure that runs horizontally through the U-shaped frame is provided on the top surface of the side of the U-shaped frame away from the crane trolley. The groove structure is respectively opposite to the position of the inverted U-shaped locking plate. The inverted U-shaped locking plate includes two oppositely arranged locking plates. One locking plate is connected to the telescopic end of the automatic telescopic mechanism, and a connecting plate is installed between the two locking plates. The thickness of the connecting plate is less than or equal to the groove depth of the groove structure, and the width of the connecting plate is less than the groove width of the groove structure.

4. The intelligent double-girder bridge crane with dual lifting points according to claim 3, characterized in that: Each inverted U-shaped locking plate is equipped with a second laser rangefinder that is connected to the crane control system signal. The second laser rangefinder is embedded on the inner side of the locking plate away from the automatic telescopic mechanism. The frame structure is provided with a second laser sensing area opposite to the position of the second laser rangefinder. The automatic telescopic mechanism is a servo electric cylinder.

5. A dual-lifting-point intelligent double-girder bridge crane according to claim 1 or 3, characterized in that: The tilting mechanism includes a support seat horizontally mounted on the crane trolley. The support seat is rotatably connected to the frame structure by a horizontally arranged shaft that is perpendicular to the main beam in the horizontal direction. A tilting motor mounted on the support seat is drivenly connected to the shaft, and a mounting seat is also fixedly fitted on the shaft. The automatic telescopic mechanism is mounted on the mounting seat.

6. The intelligent double-girder bridge crane with dual lifting points according to claim 1, characterized in that: The frame structure is fixedly connected to a mounting plate on the side near the crane trolley. Each of the four corners of the mounting plate has a mounting through hole, and the tilting mechanism is mounted on the mounting plate.

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