Gantry hoisting fairlead device

Abstract

The utility model discloses a gate type hoisting cable guide device which comprises a fixed underframe, a stand column and a cross beam, one side of the bottom end of the fixed underframe is movably connected with the stand column through a rotating shaft, the top end of the fixed underframe is connected with a hydraulic telescopic rod through a rotating shaft, and the middle of one side, away from a movable threaded block, of a connecting plate is connected with a cable guide frame through a fixing bolt. The middle of the cable guiding frame is connected with a movable shaft through a bearing, the outer wall of the middle of the movable shaft is sleeved with a winding disc, a cable guiding opening is formed in the middle of the fixing plate, and a cable guiding roller is arranged at the top of the cable guiding opening. The winding motor is adopted to drive the winding disc to rotate to achieve cable winding and unwinding actions so that the high-voltage cable can follow the crane, sliding connection between the cable and the cable guiding opening can be changed into rolling connection through the cable guiding roller, excessive friction of the cable is avoided, and therefore the service life of the cable is prolonged; the hydraulic telescopic rod can drive the stand column to incline so as to adjust the height of the cross beam, and the crane can be conveniently moved and adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of gantry type lifting cable guides, in particular to a gantry type lifting cable guide device. Background Art

[0002] Cranes with lifting mechanisms equipped with cable drums are mainly used for loading and unloading and hoisting operations of materials indoors and outdoors. When in use, the cable on the cable drum is directly connected to the hoisting device, so that the hoisting device under the crane can be powered on for operation, thereby loading, unloading and hoisting goods. The application number CN201921331125.7 is retrieved, which is a gantry crane anti-wire break protection device. The utility model automatically cuts off the power of the travel motor by excessive pulling of the dragging wire rope by setting a rotating handle, a touch switch, etc., which can effectively prevent the dragging wire rope or the power supply cable from being broken due to knotting, entanglement, etc. during the travel of the gantry crane. It has a simple structure, reliable operation, and is suitable for market promotion.

[0003] Similar to the above-mentioned gantry crane anti-wire breakage protection device: although the automatic power-off of the travel motor is completed by excessive pulling of the dragging wire rope, which can effectively prevent the dragging wire rope or the power supply cable from being pulled off due to knotting, entanglement, etc. during the travel of the gantry crane, but firstly, at present, the cables of cranes are often easily rubbed against the crane frame, and the friction caused by long-term use can easily cause the cables to be worn and broken. Secondly, it cannot change the overall height of the crane, which can easily make it too high and affect the stability during transportation and movement.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a gantry crane cable guide device is proposed to achieve a more practical purpose. Summary of the invention

[0005] The purpose of the utility model is to provide a gantry crane cable guide device to solve the problem of the above-mentioned gantry crane anti-breaking wire protection device proposed in the above-mentioned background technology. Firstly, the cables of cranes at present are often easily rubbed against the crane frame, and the friction caused by long-term use can easily cause the cables to be worn and broken. Secondly, it is impossible to change the overall height of the crane, which can easily make it too high and affect the stability during transportation and movement.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gantry lifting cable guide device, comprising a fixed base frame, a column and a crossbeam, wherein one side of the bottom end of the fixed base frame is movably connected to the column via a rotating shaft, the top end of the fixed base frame is connected to a hydraulic telescopic rod via a rotating shaft, the end of the hydraulic telescopic rod away from the fixed base frame is movably connected to the column via a rotating shaft, and the crossbeam is arranged on the top of the two groups of columns.

[0007] Furthermore, a movable cylinder is sleeved on the middle outer wall of the beam, and the movable cylinder and the beam are interactively connected through bearings. A fixing frame is welded to the bottom of the movable cylinder, and a screw is connected to the middle of the fixing frame through a bearing. A servo motor is arranged on one side of the fixing frame, and the output end of the servo motor is connected to the screw.

[0008] Furthermore, the outer wall of the screw rod is threadedly connected to a movable threaded block, a connecting plate is welded to the bottom end of the movable threaded block, and a cable guide is connected to the middle of a side of the connecting plate away from the movable threaded block via a fixing bolt.

[0009] Furthermore, a movable shaft is connected to the middle of the cable guide frame through a bearing, a winding motor is arranged on one side of the cable guide frame, an output end of the winding motor is connected to the movable shaft, a winding drum is sleeved on the outer wall of the middle of the movable shaft, and a cable guide groove is arranged on the outer wall of the winding drum.

[0010] Furthermore, a No. 2 hydraulic telescopic rod is arranged at the bottom edge of the connecting plate, and the end of the No. 2 hydraulic telescopic rod away from the connecting plate is connected to a fixed plate, a wire opening is provided in the middle of the fixed plate, a cable guide roller is provided at the top of the wire opening, and a clamping device is connected to the bottom end of the fixed plate, and the clamping device is composed of an electric motor, a magnetic powder clutch, a brake and a reducer.

[0011] Furthermore, the fixed base frame is triangular in shape, a branching frame is provided on one side of the cable guide frame, and a guide groove is provided on the surface of the branching frame.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the gantry crane cable guide device adopts a winding motor to drive the winding drum to rotate to reel in and release the cable to realize the high-voltage cable following the crane, and the cable guide roller makes the sliding connection between the cable and the conductor port become a rolling connection, thereby avoiding excessive friction of the cable and thus improving the service life of the cable. The hydraulic telescopic rod can drive the column to tilt to adjust the height of the beam, which is convenient for the crane to move and adjust. The specific contents are as follows:

[0013] The middle part of one side of the connecting plate away from the movable threaded block is connected with a cable guide through a fixing bolt, and the cable guide plays a fixing role.

[0014] A movable shaft is connected to the middle of the cable guide frame through a bearing, and a winding motor is arranged on one side of the cable guide frame. The output end of the winding motor is connected to the movable shaft, and the winding motor can drive the movable shaft to rotate. A winding disk is sleeved on the outer wall of the middle part of the movable shaft. The rotation of the movable shaft drives the winding disk to rotate, thereby realizing the winding and releasing of the high-voltage cable of the crane. The outer wall of the winding disk is arranged with cable guide grooves, and the guide grooves play a guiding role so that the cables can be wound neatly. When the crane is moving, the winding motor drives the winding disk to rotate to reel in and release the cable to realize the high-voltage cable following the crane. At the same time, the winding motor will provide corresponding pre-tightening force to keep the cable tight. In the reel, a wire port is provided in the middle of the fixed plate, and a cable guide roller is provided on the top of the wire port. The cable guide roller changes the sliding connection between the cable and the wire port into a rolling connection, thereby avoiding excessive friction of the cable and thus increasing the service life of the cable. One side of the bottom end of the fixed frame is movably connected to a column through a rotating shaft, and the column plays a supporting role. The top end of the fixed frame is connected to a hydraulic telescopic rod through a rotating shaft, and the end of the hydraulic telescopic rod away from the fixed frame is movably connected to the column through a rotating shaft. The hydraulic telescopic rod can drive the column to tilt, thereby realizing the adjustment of the height of the beam, which is convenient for the crane to move and adjust. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the gantry type lifting cable guide device of the utility model;

[0016] Figure 2 This is a schematic diagram of the cable guide structure of the gantry crane cable guide device of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the reel of the gantry crane cable guide device of the utility model;

[0018] Figure 4 The utility model is a schematic diagram of the side structure of the portal crane cable guide device.

[0019] In the figure: 1. Fixed base frame; 2. Column; 3. Hydraulic telescopic rod; 4. Crossbeam; 5. Movable cylinder; 6. Fixed frame; 7. Screw rod; 8. Servo motor; 9. Moving thread block; 10. Connecting plate; 11. Cable guide frame; 12. Movable shaft; 13. Winding motor; 14. Winding reel; 15. Cable guide groove; 16. No. 2 hydraulic telescopic rod; 17. Fixed plate; 18. Wire port; 19. Cable guide roller; 20. Clamping device; 21. Branching frame; 22. Guide groove. Implementation

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-Figure 4 The utility model provides a technical solution: a gantry crane cable guide device includes a fixed base frame 1, a column 2 and a crossbeam 4. One side of the bottom end of the fixed base frame 1 is movably connected with the column 2 through a rotating shaft, and the column 2 plays a supporting role. The top of the fixed base frame 1 is connected with a hydraulic telescopic rod 3 through a rotating shaft. The end of the hydraulic telescopic rod 3 away from the fixed base frame 1 is movably connected to the column 2 through a rotating shaft. The hydraulic telescopic rod 3 can drive the column 2 to tilt, thereby realizing the adjustment of the height of the crossbeam 4, which is convenient for the crane to move and adjust. The crossbeam 4 is arranged on the top of the two groups of columns 2, and the crossbeam 4 plays a supporting role.

[0022] A movable cylinder 5 is sleeved on the outer wall of the middle part of the crossbeam 4. The movable cylinder 5 and the crossbeam 4 are interactively connected through bearings. The movable cylinder 5 can rotate along the outer wall of the crossbeam 4. A fixed frame 6 is welded to the bottom of the movable cylinder 5. During the tilting process of the crossbeam 4, the fixed frame 6 is always at the bottom of the movable cylinder 5 due to the action of gravity. The fixed frame 6 plays the role of fixing the screw 7. The middle part of the fixed frame 6 is connected with the screw 7 through a bearing. A servo motor 8 is arranged on one side of the fixed frame 6. The output end of the servo motor 8 is connected to the screw 7, and the screw 7 can be driven to rotate by the servo motor 8.

[0023] The outer wall of the screw 7 is threadedly connected with a movable thread block 9, which can be driven to rotate by a servo motor 8. The rotation of the screw 7 can drive the movable thread block 9 to translate, thereby realizing the adjustment of the position of the holding device 20, which is convenient for lifting objects at different positions. The top of the movable thread block 9 passes through a limiting rod to prevent the movable thread block 9 from rotating synchronously with the screw 7. A connecting plate 10 is welded to the bottom end of the movable thread block 9, and the connecting plate 10 plays a connecting role. The middle part of the side of the connecting plate 10 away from the movable thread block 9 is connected to a cable guide frame 11 through a fixing bolt, and the cable guide frame 11 plays a fixing role.

[0024] A movable shaft 12 is connected to the middle of the cable guide frame 11 through a bearing, and a winding motor 13 is arranged on one side of the cable guide frame 11. The output end of the winding motor 13 is connected to the movable shaft 12, and the winding motor 13 can drive the movable shaft 12 to rotate. A winding drum 14 is sleeved on the outer wall of the middle part of the movable shaft 12. The rotation of the movable shaft 12 drives the winding drum 14 to rotate, thereby realizing the winding and releasing of the high-voltage cable of the crane. The outer wall of the winding drum 14 is arranged with cable guide grooves 15, and the wire grooves 15 play a guiding role so that the cables are neatly wound. When the crane is moving, the winding motor 13 drives the winding drum 14 to rotate to reel in and release the cable to realize the high-voltage cable following the crane. At the same time, the winding motor 13 will provide corresponding pre-tightening force to keep the cable tightened into the winding drum 14.

[0025] A No. 2 hydraulic telescopic rod 16 is arranged at the bottom edge of the connecting plate 10. The end of the No. 2 hydraulic telescopic rod 16 away from the connecting plate 10 is connected to a fixed plate 17. The No. 2 hydraulic telescopic rod 16 can drive the fixed plate 17 to perform lifting movements, thereby facilitating the crane to lift the required items. A wire opening 18 is provided in the middle of the fixed plate 17. The wire opening 18 can be used for cables to pass through and connect with the clamping device 20. A cable guide roller 19 is provided on the top of the wire opening 18. The cable guide roller 19 converts the sliding connection between the cable and the wire opening 18 into a rolling connection, thereby avoiding excessive friction of the cable and thus improving the service life of the cable. The bottom end of the fixed plate 17 is connected to a clamping device 20, which is an existing mechanism that can clamp the required items therein to perform lifting work.

[0026] The fixed base frame 1 is triangular in shape, and the triangle has stability so that the crane can maintain balance during the tilting of the column 2. A branching frame 21 is provided on one side of the cable guide frame 11. The branching frame 21 makes the cable running trajectory more reasonable and avoids excessive entanglement of the cable before winding, thereby maximally protecting the cable and extending the service life of the cable. A guide groove 22 is provided on the surface of the branching frame 21, and the guide groove 22 plays a guiding role.

[0027] Working principle: When using the gantry crane cable guide device, fix the crane in a suitable position, and the hydraulic telescopic rod 3 can drive the column 2 to tilt so as to adjust the height of the beam 4. The beam 4 is set on the top of the two groups of columns 2. The beam 4 plays a supporting role. The servo motor 8 can drive the screw 7 to rotate. The rotation of the screw 7 can drive the moving thread block 9 to translate, so as to adjust the position of the holding device 20, which is convenient for lifting objects in different positions. The top of the moving thread block 9 passes through the limit rod to prevent the moving thread block 9 from following the screw. 7 rotates synchronously, the winding motor 13 can drive the movable shaft 12 to rotate, and a winding drum 14 is sleeved on the middle outer wall of the movable shaft 12. The rotation of the movable shaft 12 drives the winding drum 14 to rotate so as to realize the high-voltage cable of the crane to be wound up and released. The outer wall of the winding drum 14 is arranged with a cable guide groove 15, and the guide groove 15 plays a guiding role so that the cable can be wound up neatly. When the crane is moving, the winding motor 13 drives the winding drum 14 to rotate to reel in and release the cable to realize the high-voltage cable following the crane. At the same time, the winding motor 13 will provide a corresponding pre-tightening force to keep the cable tightened to the reel. In the reel 14, the second hydraulic telescopic rod 16 can drive the fixed plate 17 to move up and down so as to facilitate the crane to lift the required items. A wire opening 18 is provided in the middle of the fixed plate 17. The wire opening 18 can be used for the cable to pass through and connect with the clamping device 20. A cable guide roller 19 is provided on the top of the wire opening 18. The cable guide roller 19 makes the cable and the wire opening 18 become a rolling connection through a sliding connection, avoiding excessive friction of the cable and thus improving the service life of the cable. The bottom end of the fixed plate 17 is connected to the clamping device 20, which is electrically The utility model is composed of a motor, a magnetic powder clutch, a brake and a reducer, and the lead screw shaft is rotated by a roller chain. The left and right nuts drive the two clamp arms to open and close by rotating the lead screw shaft. The left and right clamp arms are driven by the driving device so that the two claws begin to clamp the required objects to perform lifting work. The clamping device 20 includes but is not limited to lifting rings, lifting suction cups, clamps and hanging beams, etc. The cable distribution frame 21 makes the cable running trajectory more reasonable, avoids excessive winding of the cable before winding, maximizes the protection of the cable, and prolongs the service life of the cable. The guide groove 22 plays a guiding role.

Claims

1. A gantry crane cable guide device, comprising a fixed base frame (1), a column (2) and a crossbeam (4), characterized in that: One side of the bottom end of the fixed base frame (1) is movably connected to a column (2) via a rotating shaft, the top end of the fixed base frame (1) is connected to a hydraulic telescopic rod (3) via a rotating shaft, the end of the hydraulic telescopic rod (3) away from the fixed base frame (1) is movably connected to the column (2) via a rotating shaft, and the cross beam (4) is arranged on the top of the two groups of columns (2).

2. The gantry crane cable guide device according to claim 1, characterized in that: A movable cylinder (5) is sleeved on the outer wall of the middle part of the crossbeam (4); the movable cylinder (5) and the crossbeam (4) are interactively connected via a bearing; a fixing frame (6) is welded to the bottom of the movable cylinder (5); a screw rod (7) is connected to the middle part of the fixing frame (6) via a bearing; a servo motor (8) is arranged on one side of the fixing frame (6); and an output end of the servo motor (8) is connected to the screw rod (7).

3. The gantry crane cable guide device according to claim 2, characterized in that: The outer wall of the screw rod (7) is threadedly connected to a movable thread block (9), a connecting plate (10) is welded to the bottom end of the movable thread block (9), and a cable guide (11) is connected to the middle of a side of the connecting plate (10) away from the movable thread block (9) via a fixing bolt.

4. The gantry crane cable guide device according to claim 3, characterized in that: A movable shaft (12) is connected to the middle of the cable guide frame (11) via a bearing, a winding motor (13) is provided on one side of the cable guide frame (11), an output end of the winding motor (13) is connected to the movable shaft (12), a winding drum (14) is sleeved on the outer wall of the middle of the movable shaft (12), and a cable guide groove (15) is arranged on the outer wall of the winding drum (14).

5. The gantry crane cable guide device according to claim 3, characterized in that: A second hydraulic telescopic rod (16) is arranged at the bottom edge of the connecting plate (10); one end of the second hydraulic telescopic rod (16) away from the connecting plate (10) is connected to a fixed plate (17); a wire opening (18) is provided in the middle of the fixed plate (17); a cable guide roller (19) is provided at the top of the wire opening (18); a clamping device (20) is connected to the bottom end of the fixed plate (17); the clamping device (20) is composed of a motor, a magnetic powder clutch, a brake and a reducer.

6. The gantry crane cable guide device according to claim 4, characterized in that: The fixed base frame (1) is triangular in shape, a branching frame (21) is provided on one side of the cable guide frame (11), and a guide groove (22) is provided on the surface of the branching frame (21).

Images