Hoisting mechanism of European style bridge crane

Abstract

The utility model discloses a hoisting mechanism of European style bridge crane, relates to crane technical field, including mounting shaft, support leg and moving block, the inside of hoisting mechanism body is equipped with first drive motor, and the output end of first drive motor is connected with mounting shaft through drive shaft, the outer wall of mounting shaft is equipped with the rope, and the rope is equipped with the support leg and the moving block. The bottom end of the rope is connected with a hook, oil boxes are installed on the two sides of the top end of the moving trolley, oil holes are formed in the bottom ends of the oil boxes, and sealing plugs are installed on the inner sides of the oil holes. The second driving motor works to enable the threaded rod to rotate and be in threaded fit, the movable blocks on the two sides drive the pressing plates to move inwards at the same time, the pressing plates extrude the first reset springs and the connecting rods inwards, the connecting rods drive the clamping plates to clamp and lock the mounting shaft inwards at the same time, and the problem that a locking structure is not provided is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to a lifting mechanism of a European-style bridge crane. Background Art

[0002] A crane is a space transportation equipment, whose main function is to complete the displacement of heavy objects. It can reduce labor intensity and improve labor productivity. European general-purpose bridge cranes play an important role in ports and ships, and are used for loading and unloading containers, heavy cargo, and ship maintenance. European bridge cranes are also called European cranes, which have the advantages of light weight, small structure, and low energy consumption. A trolley is provided on the main beam, and a rope is installed in the trolley. The hook is lifted by the rope, so that the cargo is lifted. The current lifting mechanism does not have a locking structure, and the installation shaft is prone to reversal. The cargo drops, which causes certain dangers, and there is no rope lubrication structure, which leads to uneven lifting. In view of this, in-depth research was conducted on the above-mentioned problems, and this case was created. Utility Model Content

[0003] The utility model aims to provide a lifting mechanism of a European bridge crane to solve the problem in the above background technology that the lifting mechanism of an existing European bridge crane does not have a locking structure and a self-lubricating function.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lifting mechanism of a European bridge crane, comprising a mounting shaft, a support leg and a moving block, a crossbeam is installed above the support leg, a control panel is installed on the outer wall of the support leg, a moving trolley is installed at one end of the crossbeam, and a lifting mechanism body is installed on the inner side of the moving trolley, a first drive motor is installed on the inner side of the lifting mechanism body, and the output end of the first drive motor is connected to the mounting shaft through a drive shaft, a rope is installed on the outer wall of the mounting shaft, and a hook is connected to the bottom end of the rope, a locking device is installed on the outer side of one end of the mounting shaft, oil boxes are installed on both sides of the top of the moving trolley, oil holes are provided at the bottom end of the oil box, and sealing plugs are installed on the inner sides of the oil holes.

[0005] Preferably, first return springs are installed on both side outer walls of the locking device, and connecting rods are installed on the inner sides of the first return springs, and one end of the connecting rods is connected to a clamping plate.

[0006] Preferably, a threaded rod is installed on the inner wall above the locking device, and one end of the threaded rod is connected to the second driving motor, and moving blocks are installed on the outer walls at both ends of the threaded rod, and pressure plates are connected below the moving blocks.

[0007] Preferably, the threads of the outer walls at both ends of the threaded rod are in opposite directions, and the inner wall of the moving block forms a threaded connection structure with the threaded rod through the internal thread.

[0008] Preferably, the outer walls above the sealing plugs are installed with sealing gaskets, and the top ends of the sealing plugs are connected to top plates.

[0009] Preferably, dampers are installed on both sides of the bottom end of the top plate, and second return springs are installed on the outer walls of the dampers.

[0010] Preferably, a rotating rod is installed on the inner wall above the movable trolley, and tamping rods are installed on the outer walls on both sides of the rotating rod.

[0011] Preferably, a fourth bevel tooth is installed on the outer wall of the other end of the installation shaft, and a third bevel tooth is meshingly installed above one side of the fourth bevel tooth, a second bevel tooth is connected above the third bevel tooth, and a first bevel tooth is installed on the outer wall of one end of the rotating rod, and a meshing transmission structure is formed between the first bevel tooth and the second bevel tooth.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) The utility model provides an oil box, a second bevel gear and a first bevel gear. Lubricating oil is poured into the oil box. When the mounting shaft rotates, the fourth bevel gear rotates at the same time. The third bevel gear drives the second bevel gear to rotate at the same time through meshing. Then, the second bevel gear meshes with the first bevel gear, so that the rotating rod drives the tamping rod to rotate. When the tamping rod contacts the sealing plug, it moves upward. At the same time, the sealing gasket moves upward. The lubricating oil in the oil box flows downward to the rope through the oil hole, thereby solving the problem of lack of self-lubrication.

[0014] (2) The utility model provides a second drive motor, a moving block and a first return spring. The second drive motor is used to rotate the threaded rod. The threads cooperate so that the moving blocks on both sides drive the pressure plates to move inward at the same time. The pressure plates squeeze the first return spring and the connecting rod inward, so that the connecting rod drives the clamping plate to clamp and lock the installation shaft inward at the same time, thereby solving the problem of not having a locking structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the cross-sectional structure of the mobile vehicle of the utility model;

[0016] Figure 2 This is a schematic diagram of the side section structure of the locking device of the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the oil box of the utility model;

[0018] Figure 4 For this utility model Figure 2Enlarged structural diagram at A in the middle.

[0019] In the figure: 1. hook; 2. rope; 3. locking device; 4. lifting mechanism body; 5. first drive motor; 6. moving trolley; 7. mounting shaft; 8. oil box; 9. rotating rod; 10. first bevel gear; 11. second bevel gear; 12. third bevel gear; 13. fourth bevel gear; 14. crossbeam; 15. supporting leg; 16. control panel; 17. clamping plate; 18. first return spring; 19. connecting rod; 20. pressure plate; 21. sealing plug; 22. second return spring; 23. damper; 24. top plate; 25. sealing gasket; 26. oil hole; 27. tamping rod; 28. moving block; 29. ​​second drive motor; 30. threaded rod. DETAILED DESCRIPTION

[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] Example 1: Please refer to Figure 1-Figure 4 A lifting mechanism of a European bridge crane comprises a mounting shaft 7, a supporting leg 15 and a moving block 28, a crossbeam 14 is mounted above the supporting leg 15, a control panel 16 is mounted on the outer wall of the supporting leg 15, a moving trolley 6 is mounted on one end of the crossbeam 14, and a lifting mechanism body 4 is mounted on the inner side of the moving trolley 6, a first driving motor 5 is mounted on the inner side of the lifting mechanism body 4, and the output end of the first driving motor 5 is connected to the mounting shaft 7 through a driving shaft, a rope 2 is mounted on the outer wall of the mounting shaft 7, and a hook 1 is connected to the bottom end of the rope 2, a locking device 3 is mounted on the outer side of one end of the mounting shaft 7, oil boxes 8 are mounted on both sides of the top of the moving trolley 6, oil holes 26 are arranged at the bottom ends of the oil boxes 8, and sealing plugs 21 are mounted on the inner sides of the oil holes 26;

[0022] The outer walls of both sides of the locking device 3 are both installed with first return springs 18, and the inner sides of the first return springs 18 are both installed with connecting rods 19, and one end of the connecting rods 19 is connected with a clamping plate 17;

[0023] A threaded rod 30 is installed on the inner wall above the locking device 3, and one end of the threaded rod 30 is connected to the second driving motor 29, and the outer walls of both ends of the threaded rod 30 are installed with moving blocks 28, and the lower part of the moving blocks 28 is connected to the pressing plate 20;

[0024] The threads of the outer walls at both ends of the threaded rod 30 are in opposite directions, and the inner wall of the moving block 28 forms a threaded connection structure with the threaded rod 30 through the internal threads;

[0025] Specifically, Figure 1 , Figure 2 and Figure 4 As shown, when this structure is used, the second drive motor 29 is operated to rotate the threaded rod 30, and the threads cooperate so that the moving blocks 28 on both sides drive the pressure plate 20 to move inward at the same time, and the first return spring 18 and the connecting rod 19 are squeezed inward by the pressure plate 20, so that the connecting rod 19 drives the clamping plate 17 to clamp and lock the installation shaft 7 inward at the same time, thereby realizing the locking effect.

[0026] Embodiment 2: The outer wall above the sealing plug 21 is installed with a sealing gasket 25, and the top of the sealing plug 21 is connected with a top plate 24;

[0027] Dampers 23 are installed on both sides of the bottom end of the top plate 24, and second return springs 22 are installed on the outer walls of the dampers 23;

[0028] A rotating rod 9 is installed on the inner wall above the moving trolley 6, and tamping rods 27 are installed on the outer walls on both sides of the rotating rod 9;

[0029] A fourth bevel tooth 13 is installed on the outer wall of the other end of the mounting shaft 7, and a third bevel tooth 12 is meshedly installed above one side of the fourth bevel tooth 13, and a second bevel tooth 11 is connected above the third bevel tooth 12. A first bevel tooth 10 is installed on the outer wall of one end of the rotating rod 9, and a meshing transmission structure is formed between the first bevel tooth 10 and the second bevel tooth 11;

[0030] Specifically, Figure 1 and Figure 3 As shown, when this structure is used, by pouring lubricating oil into the oil box 8, when the mounting shaft 7 is working and rotating, the fourth bevel tooth 13 is rotated at the same time, and the third bevel tooth 12 drives the second bevel tooth 11 to rotate at the same time through meshing, and then the second bevel tooth 11 is meshed with the first bevel tooth 10, so that the rotating rod 9 drives the tamping rod 27 to rotate, and when the tamping rod 27 contacts the sealing plug 21, it moves upward, and at the same time the sealing gasket 25 moves upward, and the lubricating oil in the oil box 8 flows downward to the rope 2 through the oil hole 26, so as to achieve self-lubrication.

[0031] Working principle: When using the device, firstly, the first drive motor 5 is operated to rotate the installation shaft 7, so that the rope 2 drives the hook 1 to lift;

[0032] The first step to implement the innovation point:

[0033] After lifting, the second driving motor 29 is operated to rotate the threaded rod 30, and the threads cooperate so that the moving blocks 28 on both sides drive the pressure plates 20 to move inward at the same time, and the first return spring 18 and the connecting rod 19 are squeezed inward by the pressure plates 20, so that the connecting rod 19 drives the clamping plate 17 to clamp and lock the mounting shaft 7 inward at the same time, thereby preventing loosening and achieving better stability.

[0034] The second innovation point implementation steps:

[0035] Step 1: Pour the lubricating oil into the oil box 8. When the mounting shaft 7 rotates, the fourth bevel gear 13 rotates at the same time. The third bevel gear 12 drives the second bevel gear 11 to rotate at the same time through meshing. The second bevel gear 11 meshes with the first bevel gear 10, so that the rotating rod 9 drives the tamping rod 27 to rotate. When the tamping rod 27 contacts the sealing plug 21, it moves upward. At the same time, the sealing gasket 25 moves upward. The lubricating oil in the oil box 8 flows downward through the oil hole 26 to the rope 2 for lubrication.

[0036] Step 2: After the sealing plug 21 is upward, the damper 23 and the second return spring 22 are stretched and deformed. When the ram 27 rotates away from the sealing plug 21, the second return spring 22 and the damper 23 are reset to make the sealing plug 21 and the sealing gasket 25 downward to seal the oil hole 26.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lifting mechanism of a European-style bridge crane, comprising a mounting shaft (7), a support leg (15) and a moving block (28), characterized in that: A crossbeam (14) is installed above the support leg (15), a control panel (16) is installed on the outer wall of the support leg (15), a moving trolley (6) is installed at one end of the crossbeam (14), and a lifting mechanism body (4) is installed on the inner side of the moving trolley (6), a first drive motor (5) is installed on the inner side of the lifting mechanism body (4), and the output end of the first drive motor (5) is connected to a mounting shaft (7) via a drive shaft, a rope (2) is installed on the outer wall of the mounting shaft (7), and a hook (1) is connected to the bottom end of the rope (2), a locking device (3) is installed on the outer side of one end of the mounting shaft (7), and oil boxes (8) are installed on both sides of the top of the moving trolley (6), and oil holes (26) are provided at the bottom ends of the oil boxes (8), and sealing plugs (21) are installed on the inner sides of the oil holes (26).

2. The lifting mechanism of a European-style bridge crane according to claim 1, characterized in that: First return springs (18) are installed on both side outer walls of the locking device (3), and connecting rods (19) are installed on the inner sides of the first return springs (18), and one end of the connecting rods (19) is connected to a clamping plate (17).

3. The lifting mechanism of a European-style bridge crane according to claim 1, characterized in that: A threaded rod (30) is installed on the inner wall above the locking device (3), and one end of the threaded rod (30) is connected to a second drive motor (29). Moving blocks (28) are installed on the outer walls at both ends of the threaded rod (30), and a pressure plate (20) is connected below the moving blocks (28).

4. The lifting mechanism of a European-style bridge crane according to claim 3, characterized in that: The threads of the outer walls at both ends of the threaded rod (30) are in opposite directions, and the inner wall of the moving block (28) forms a threaded connection structure with the threaded rod (30) through the internal threads.

5. The lifting mechanism of a European-style bridge crane according to claim 1, characterized in that: The outer wall above the sealing plug (21) is installed with a sealing gasket (25), and the top end of the sealing plug (21) is connected to a top plate (24).

6. The lifting mechanism of a European-style bridge crane according to claim 5, characterized in that: Dampers (23) are installed on both sides of the bottom end of the top plate (24), and second return springs (22) are installed on the outer walls of the dampers (23).

7. The lifting mechanism of a European-style bridge crane according to claim 1, characterized in that: A rotating rod (9) is installed on the inner wall above the movable trolley (6), and tamping rods (27) are installed on the outer walls on both sides of the rotating rod (9).

8. The lifting mechanism of a European-style bridge crane according to claim 7, characterized in that: A fourth bevel tooth (13) is mounted on the outer wall of the other end of the mounting shaft (7), and a third bevel tooth (12) is meshingly mounted above one side of the fourth bevel tooth (13), and a second bevel tooth (11) is connected above the third bevel tooth (12). A first bevel tooth (10) is mounted on the outer wall of one end of the rotating rod (9), and a meshing transmission structure is formed between the first bevel tooth (10) and the second bevel tooth (11).

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