Adjustable windproof locking device of portal crane

Abstract

The utility model relates to the technical field of portal cranes, and discloses an adjustable windproof locking device of a portal crane, which comprises a mounting frame, and an adjusting locking component is arranged on the lower surface of the mounting frame; the adjusting and locking assembly comprises two lifting rods, the two lifting rods are fixedly connected to the lower surface of the mounting frame, a mounting box is slidably connected to the outer portions of the lifting rods, a gear ring is rotatably connected to one side of the mounting box, a threaded groove is formed in the inner wall of the gear ring, and a first stepping motor is fixedly mounted on one side of the mounting box. Through cooperative arrangement of the adjusting and locking assembly and the supporting assembly, a multi-dimensional windproof locking function is provided for the portal crane, the contact and clamping area with a track is enlarged through the two clamping plates, extrusion force is applied to a bottom cross beam of the portal crane under the cooperative effect of the pressing plate and the non-slip mat, fastening connection between the bottom cross beam and the track is enhanced, and the safety of the portal crane is improved. In addition, the supporting rods rotate and abut against the ground on the two sides of the track, and extra supporting force is provided for the device.

Description

Technical Field

[0001] This utility model relates to the field of gantry crane technology, and in particular to an adjustable windproof locking device for gantry cranes. Background Technology

[0002] A gantry crane is a large lifting device with a structure similar to a "door frame". It is mainly composed of a crossbeam (main beam), outriggers, traveling mechanism, and hoisting mechanism. It is usually used in open-air sites (such as ports, freight yards, and construction sites) for lifting heavy objects. When operating outdoors, it needs to resist wind force, thus requiring mechanical locking.

[0003] A search revealed that Chinese patent CN208684265U discloses a windproof fixing device for gantry cranes. This device addresses the problems of traditional fixing methods, such as difficult operation, high power consumption, time-consuming operation, and waste of manpower and resources.

[0004] The aforementioned device improves the ease of windproof operation of gantry cranes. In the existing technology, rail clamps are usually used to fix the gantry crane in the windproof way. However, after the rail clamps are installed on the gantry crane, they only use two contact points to contact the rail. The contact area with the raised rail is small. When strong winds come, the gantry crane is still prone to displacement due to the two-point clamping. Although it is convenient to fix the gantry crane in the windproof way, the locking effect is relatively weak, which reduces the quality of windproof locking. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an adjustable windproof locking device for gantry cranes.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an adjustable windproof locking device for a gantry crane, comprising a mounting frame, wherein an adjusting locking component is provided on the lower surface of the mounting frame;

[0007] The adjustment and locking assembly includes two lifting rods, which are fixedly connected to the lower surface of the mounting frame. A mounting box is slidably connected to the outside of each lifting rod. A gear ring is rotatably connected to one side of the mounting box, and a threaded groove is formed on the inner wall of the gear ring. A first stepper motor is fixedly mounted on one side of the mounting box, and a gear is fixedly connected to the output end of the first stepper motor. A screw is threaded into the inside of the threaded groove, and a clamping plate is fixedly connected to one end of the screw. A square rod is fixedly connected to one side of the clamping plate, and an anti-slip groove is formed on one side of the clamping plate.

[0008] As a further description of the above technical solution:

[0009] The gear and the gear ring are meshed. The square rod is slidably connected to one side of the mounting box. A fixed shell is fixedly connected to the upper surface of the mounting frame. A second stepper motor is fixedly mounted on the upper surface of the mounting frame. The second stepper motor is located on one side of the fixed shell. A bidirectional lead screw is fixedly connected to the output end of the second stepper motor.

[0010] As a further description of the above technical solution:

[0011] A telescopic frame is provided below the bidirectional lead screw, and connecting blocks are hinged to the four ends of the telescopic frame. Two of the connecting blocks have threaded holes inside, and the two connecting blocks are threaded to the outside of the bidirectional lead screw through the threaded holes.

[0012] As a further description of the above technical solution:

[0013] A pressure plate is provided below the telescopic frame. A first sliding groove is provided on the upper surface of the pressure plate. The other two connecting blocks are slidably connected inside the first sliding groove. An anti-slip pad is provided on the lower surface of the pressure plate.

[0014] As a further description of the above technical solution:

[0015] The mounting frame has a second sliding groove on each of its two inner sides. The pressure plate has a slider fixedly connected to both sides. The slider is slidably connected inside the second sliding groove. One of the mounting boxes has a connecting groove on one side. One of the lifting rods has a stud fixedly connected to one side. The stud is threaded with a threaded sleeve.

[0016] As a further description of the above technical solution:

[0017] Support components are provided on both sides of the mounting box. Each support component includes a fixing rod, two of which are fixedly connected to both sides of the mounting box. One end of each fixing rod is rotatably connected to a pivot, and a support rod is fixedly connected to the outside of the pivot.

[0018] As a further description of the above technical solution:

[0019] One end of the rotating shaft is fixedly connected to a worm gear, one side of the fixed rod is rotatably connected to a worm, one end of the worm is fixedly connected to a throttle, and the worm gear and the worm are meshed together.

[0020] This utility model has the following beneficial effects:

[0021] 1. This utility model, by adjusting the setting of the locking component, allows the gantry crane to be windproofed by using two clamping plates to easily clamp the two sides of the raised track. Under the action of the clamping plates and anti-slip grooves, the contact and clamping area with the track is increased. At the same time, under the action of the anti-slip pad of the pressure plate machine, it is easy to squeeze the bottom crossbeam of the gantry crane. Through compression, the fastening force between the gantry crane and the track is increased, thereby playing a role in windproof locking and reducing the phenomenon of gantry crane slipping on the track in strong winds. Furthermore, the sliding adjustment of the lifting rod inside the mounting box helps to adapt to the bottom crossbeam of the gantry crane of different heights, which facilitates the stable installation of this utility model.

[0022] 2. By setting up a support component, this utility model allows the gantry crane to be windproofed after being locked using the adjusting and locking components. The rotation of the support rod causes one end of the rod to abut against the ground on both sides of the track, thereby providing support for the utility model and reducing the possibility of it tipping over in strong winds after installation. This enhances the windproof locking performance of the utility model and further improves the stability of its installation. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model;

[0024] Figure 2 This is a schematic diagram of the mounting box structure proposed in this utility model;

[0025] Figure 3 This is a schematic diagram of the clamping plate structure proposed in this utility model;

[0026] Figure 4 This is a schematic diagram of the cross-sectional structure of the mounting frame proposed in this utility model;

[0027] Figure 5 This is a schematic diagram of the telescopic frame structure proposed in this utility model;

[0028] Figure 6 This is a schematic diagram of the cross-sectional structure of the pressure plate proposed in this utility model.

[0029] Legend:

[0030] 1. Mounting frame; 2. Lifting rod; 3. Mounting box; 4. Gear ring; 5. Threaded groove; 6. First stepper motor; 7. Gear; 8. Screw; 9. Square rod; 10. Clamping plate; 11. Anti-slip groove; 12. Fixing shell; 13. Second stepper motor; 14. Double-acting lead screw; 15. Telescopic frame; 16. Connecting block; 17. Threaded hole; 18. Pressure plate; 19. First slide groove; 20. Anti-slip pad; 21. Second slide groove; 22. Slider; 23. Connecting groove; 24. Stud; 25. Threaded sleeve; 26. Fixing rod; 27. Rotary shaft; 28. Support rod; 29. ​​Worm gear; 30. Worm; 31. Throttle. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] As attached Figure 1-6 As shown, one embodiment of this utility model is provided: an adjustable windproof locking device for a gantry crane, including a mounting frame 1, and an adjustable locking component is provided on the lower surface of the mounting frame 1.

[0033] The adjusting locking assembly includes two lifting rods 2, which are fixedly connected to the lower surface of the mounting frame 1. A mounting box 3 is slidably connected to the outside of the lifting rods 2. A gear ring 4 is rotatably connected to one side of the mounting box 3. A threaded groove 5 is opened on the inner wall of the gear ring 4. A first stepper motor 6 is fixedly installed on one side of the mounting box 3. A gear 7 is fixedly connected to the output end of the first stepper motor 6. A screw 8 is threadedly connected to the inside of the threaded groove 5. A clamping plate 10 is fixedly connected to one end of the screw 8. A square rod 9 is fixedly connected to one side of the clamping plate 10. An anti-slip groove 11 is opened on one side of the clamping plate 10. The threaded groove 5 matches the thread of the screw 8. The clamping plate 10 facilitates clamping the side wall of the track, and the anti-slip groove 11 enhances the anti-slip performance of the clamping plate 10 during clamping.

[0034] As attached Figure 2 As shown, gear 7 and gear ring 4 are meshed, which facilitates the movement of stud 24 by rotating gear ring 4.

[0035] As attached Figure 3 As shown, the square rod 9 is slidably connected to one side of the mounting box 3, which serves to limit the position of the clamping plate 10.

[0036] As attached Figure 4As shown, a fixed shell 12 is fixedly connected to the upper surface of the mounting frame 1, and a second stepper motor 13 is fixedly installed on the upper surface of the mounting frame 1. The second stepper motor 13 is located on one side of the fixed shell 12, and a bidirectional lead screw 14 is fixedly connected to the output end of the second stepper motor 13. A telescopic frame 15 is provided below the bidirectional lead screw 14, and a connecting block 16 is hinged to each of the four ends of the telescopic frame 15. The telescopic frame 15 facilitates the lifting and lowering of the pressure plate 18 under the action of the connecting block 16.

[0037] As attached Figure 5 As shown, the two connecting blocks 16 have threaded holes 17 inside, and the two connecting blocks 16 are threaded to the outside of the bidirectional lead screw 14 through the threaded holes 17. The outside of the bidirectional lead screw 14 has threads in opposite directions, which makes it easy to use the bidirectional lead screw 14 to drive the two connecting blocks 16 to move closer and further apart.

[0038] As attached Figure 6 As shown, a pressure plate 18 is provided below the telescopic frame 15. A first groove 19 is provided on the upper surface of the pressure plate 18. Two other connecting blocks 16 are slidably connected inside the first groove 19. An anti-slip pad 20 is provided on the lower surface of the pressure plate 18. The pressure plate 18 facilitates the compression of the bottom crossbeam of the gantry crane. The anti-slip pad 20 is made of rubber, and its elasticity improves the tightness of the pressure plate 18 after it is pressed down.

[0039] As attached Figure 4 As shown, the mounting frame 1 has a second slide groove 21 on each of its two sides. The pressure plate 18 is fixedly connected to both sides of the slide groove 21. The slide groove 22 is slidably connected inside the slide groove 21. The slide groove 22 helps to improve the stability of the pressure plate 18 when it moves.

[0040] As attached Figure 1 As shown, one of the mounting boxes 3 has a connecting groove 23 on one side for the stud 24 to pass through.

[0041] As attached Figure 4 As shown, a stud 24 is fixedly connected to one side of one of the lifting rods 2. A threaded sleeve 25 is connected to the external thread of the stud 24. The stud 24 moves as the lifting rod 2 moves up and down. The threaded sleeve 25 fixes the moving lifting rod 2 with the connection of the stud 24.

[0042] As attached Figure 1As shown, support components are provided on both sides of the mounting box 3. The support components include fixed rods 26, two of which are fixedly connected to the two sides of the mounting box 3. One end of the fixed rod 26 is rotatably connected to a rotating shaft 27. A support rod 28 is fixedly connected to the outside of the rotating shaft 27. A worm gear 29 is fixedly connected to one end of the rotating shaft 27. A worm 30 is rotatably connected to one side of the fixed rod 26. A handle 31 is fixedly connected to one end of the worm 30. The worm gear 29 and the worm 30 are meshed. One end of the support rod 28 is spherical to facilitate frictional contact with the ground for support.

[0043] Working principle: When installing this utility model, first place it on the support beam at the bottom of the gantry crane. Adjust the height of the lifting rod 2 according to the height of the beam and the distance between it and the track. Pull up the mounting frame 1 to drive the lifting rods 2 on both sides to slide inside the mounting box 3, thereby driving the stud 24 to slide inside the connecting groove 23. When the adjustment is in a suitable position, so that the bottom of the mounting box 3 on both sides is on both sides of the track, tighten the threaded sleeve 25 so that one side of the threaded sleeve 25 is pressed against the mounting box 3, thereby fixing the position of the lifting rod 2. Then, turn on the first step motor 6 on both sides, so that its output end drives the gear 7 to rotate. Under the action of the gear 7 meshing with the gear ring 4, the gear ring 4 is driven to rotate. Under the action of the internal thread groove 5, the gear ring 4 drives the screw 8 to slide inside the mounting box 3 and limit the movement of the square rod 9. This causes the clamping plate 10 to move towards the side wall of the track. When the clamping plates 10 on both sides are pressed against the two sides of the track protrusion through the anti-slip groove 11, the utility model is installed.

[0044] Then, the second stepper motor 13 is turned on, and its output end drives the bidirectional lead screw 14 to rotate. Under the action of the opposite threads on the outside of the bidirectional lead screw 14, the connecting blocks 16 on both sides are driven to move closer to each other, thereby causing the telescopic frame 15 to extend. Under the action of the other two connecting blocks 16 sliding inside the first slide groove 19, the pressure plate 18 and the anti-slip pad 20 are pushed, causing the sliders 22 on both sides to slide inside the second slide groove 21, thereby pressing against the bottom crossbeam of the gantry crane. While pressing the crossbeam, the contact surface between the gantry crane and the rail is pressed tightly, thereby improving the windproof locking function of the gantry crane.

[0045] After installation, turn the handle 31 to drive the worm 30 to rotate. Under the action of the worm 30 meshing with the worm wheel 29, the worm wheel 29 is driven to rotate, which in turn drives the shaft 27 to rotate. This causes the shaft 27 to drive one end of the support rod 28 to contact the ground and compress it, thereby enhancing the supporting force of this utility model.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adjustable windproof locking device for a gantry crane, comprising a mounting frame (1), characterized in that: An adjustment and locking component is provided on the lower surface of the mounting frame (1); The adjustment and locking assembly includes two lifting rods (2), which are fixedly connected to the lower surface of the mounting frame (1). The lifting rods (2) are slidably connected to the outside of the mounting box (3). A gear ring (4) is rotatably connected to one side of the mounting box (3). A threaded groove (5) is provided on the inner wall of the gear ring (4). A first stepper motor (6) is fixedly installed on one side of the mounting box (3). A gear (7) is fixedly connected to the output end of the first stepper motor (6). A screw (8) is threadedly connected to the inside of the threaded groove (5). A clamping plate (10) is fixedly connected to one end of the screw (8). A square rod (9) is fixedly connected to one side of the clamping plate (10). An anti-slip groove (11) is provided on one side of the clamping plate (10).

2. The adjustable windproof locking device for a gantry crane according to claim 1, characterized in that: The gear (7) and the gear ring (4) are meshed together. The square rod (9) is slidably connected to one side of the mounting box (3). A fixed shell (12) is fixedly connected to the upper surface of the mounting frame (1). A second stepper motor (13) is fixedly installed on the upper surface of the mounting frame (1). The second stepper motor (13) is located on one side of the fixed shell (12). A bidirectional lead screw (14) is fixedly connected to the output end of the second stepper motor (13).

3. The adjustable windproof locking device for a gantry crane according to claim 2, characterized in that: A telescopic frame (15) is provided below the bidirectional lead screw (14). Each of the four ends of the telescopic frame (15) is hinged with a connecting block (16). Two of the connecting blocks (16) have threaded holes (17) inside. The two connecting blocks (16) are threaded to the outside of the bidirectional lead screw (14) through the threaded holes (17).

4. The adjustable windproof locking device for a gantry crane according to claim 3, characterized in that: A pressure plate (18) is provided below the telescopic frame (15). A first groove (19) is provided on the upper surface of the pressure plate (18). Two other connecting blocks (16) are slidably connected inside the first groove (19). An anti-slip pad (20) is provided on the lower surface of the pressure plate (18).

5. The adjustable windproof locking device for a gantry crane according to claim 4, characterized in that: The mounting frame (1) has a second sliding groove (21) on each of its two sides. The pressure plate (18) is fixedly connected to both sides of a slider (22). The slider (22) is slidably connected inside the second sliding groove (21). One of the mounting boxes (3) has a connecting groove (23) on one side. One of the lifting rods (2) has a stud (24) fixedly connected to one side. The stud (24) has a threaded sleeve (25) connected to its external thread.

6. The adjustable windproof locking device for a gantry crane according to claim 1, characterized in that: The mounting box (3) is provided with support components on both sides. The support components include fixed rods (26), two of which are fixedly connected to the two sides of the mounting box (3). One end of the fixed rod (26) is rotatably connected to a rotating shaft (27), and a support rod (28) is fixedly connected to the outside of the rotating shaft (27).

7. The adjustable windproof locking device for a gantry crane according to claim 6, characterized in that: One end of the rotating shaft (27) is fixedly connected to a worm gear (29), and one side of the fixed rod (26) is rotatably connected to a worm (30). One end of the worm (30) is fixedly connected to a throttle (31), and the worm gear (29) and the worm (30) are meshed together.

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