Hoisting equipment for maintaining port portal crane

Abstract

The utility model belongs to the technical field of hoisting equipment, and particularly relates to hoisting equipment for maintaining a port portal crane, which comprises a suspension mechanism. The fixing frame is fixed to the top face of the lifting plate, and a hanging ring is fixed to the top end of the fixing frame; a lifting hook is fixed at the bottom end of the rotating column; the driving mechanism is connected to the rotating column in a drivable mode and used for driving the rotating column to rotate, the driving mechanism comprises a worm gear, mounting lugs with holes, a worm and a first driving motor, the worm gear is fixed to the rotating column, and the two mounting lugs with holes are symmetrically fixed to the top face of the lifting plate; according to the utility model, the rotating column is driven to rotate by the arranged driving mechanism, so that the vertical planetary reducer can rotate and is used for adjusting the orientation of the vertical planetary reducer, maintenance personnel do not need to continuously walk to different positions, the maintenance is more convenient, and the maintenance efficiency is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lifting equipment, and particularly relates to a lifting equipment for repairing port portal cranes. Background Art

[0002] Portal cranes are the main equipment for loading and unloading operations in ports and play a very important role in the production and operation of ports. Vertical planetary reducers are important electromechanical equipment for port portal cranes, and the fault repair of vertical planetary reducers that provide rotary power for portal cranes is a difficult point in the repair work of portal cranes.

[0003] When repairing the faults of vertical planetary reducers, since vertical planetary reducers are relatively heavy, in order to facilitate the repair work, lifting equipment is usually used to lift the vertical planetary reducer to a certain height. There are many types of lifting equipment on the market for lifting such electromechanical equipment.

[0004] It is retrieved that in the prior art, the Chinese utility model patent with the authorization announcement number CN216889747U discloses "a lifting device for repairing electromechanical equipment", which includes two support rods, a connecting rod is fixedly connected between the two support rods, a motor is fixedly connected to the top of the connecting rod, a pulling rope is wound and connected to the output shaft of the motor, the free end of the pulling rope passes through the connecting rod, a hook is fixedly connected to the free end of the pulling rope, and a bearing mechanism is arranged on one side of the two support rods close to each other.

[0005] The lifting equipment in the prior art including the above-mentioned one, although it can meet general repair work, in actual use, such lifting equipment does not have a rotating function, so that maintenance personnel need to constantly move to different positions when repairing vertical planetary reducers, which is rather troublesome and greatly reduces the repair efficiency.

[0006] To solve the above problems, a lifting equipment for repairing port portal cranes is proposed in this application. Utility Model Content

[0007] To solve the above problems existing in the prior art, the utility model provides a lifting equipment for repairing port portal cranes, which has the characteristics of convenient use and high repair efficiency.

[0008] To achieve the above object, the utility model provides the following technical solution: A lifting equipment for repairing port portal cranes, including a suspension mechanism, and the suspension mechanism includes:

[0009] A lifting plate, on which a round hole is provided;

[0010] A fixing frame, the fixing frame is fixed on the top surface of the lifting plate, and a lifting ring is fixed at the top end of the fixing frame;

[0011] A rotating column that passes through the circular hole and is rotatably connected to the lifting plate, with a hook fixed to the bottom end of the rotating column;

[0012] A driving mechanism that is drivably connected to the rotating column for driving the rotating column to rotate. The driving mechanism includes a worm gear, a perforated mounting ear, a worm, and a first driving motor. The worm gear is fixed on the rotating column, and two of the perforated mounting ears are symmetrically fixed on the top surface of the lifting plate. The worm is rotatably mounted between the two perforated mounting ears and meshes with the worm gear. The first driving motor is fixed on the perforated mounting ear for driving the worm to rotate.

[0013] As a preferred technical solution of the present invention, it further includes:

[0014] A first bearing, the outer ring of which is fixed in the circular hole, and the rotating column passes through the first bearing and is fixedly connected to the inner ring of the first bearing.

[0015] As a preferred technical solution of the present invention, it further includes:

[0016] A second bearing, the outer ring of which is fixed to the fixed frame, and the top end of the rotating column is embedded in the second bearing and fixedly connected to the inner ring of the second bearing.

[0017] As a preferred technical solution of the present invention, it further includes:

[0018] A counterweight block, which is fixed to the top surface of the lifting plate at a position away from the perforated mounting ear.

[0019] As a preferred technical solution of the present invention, it further includes a lifting mechanism, and the lifting mechanism includes:

[0020] A base;

[0021] An n-shaped frame, which is fixed to the top surface of the base;

[0022] A lifting seat, one end of which is located inside the n-shaped frame, and the suspension mechanism is installed on the bottom surface of the other end of the lifting seat;

[0023] A threaded lead screw, which is rotatably mounted between the inner top surface of the n-shaped frame and the base, and the threaded lead screw passes through the lifting seat and is connected to the lifting seat by screw thread engagement;

[0024] A second driving motor, which is fixed to the top surface of the n-shaped frame for driving the threaded lead screw to rotate.

[0025] As a preferred technical solution of the present utility model, it further includes:

[0026] A hanging rod, the hanging rod is fixed to the bottom surface of the lifting seat, and the hanging rod penetrates through the hanging ring.

[0027] As a preferred technical solution of the present utility model, it further includes:

[0028] Guide columns, two of the guide columns are symmetrically fixed between the inner top surface of the n-shaped frame and the base, and the guide columns penetrate through the lifting seat.

[0029] As a preferred technical solution of the present utility model, the outer wall of the lifting seat abuts against the inner wall of the n-shaped frame.

[0030] Compared with the prior art, the beneficial effects of the present utility model are:

[0031] In the present utility model, by setting the driving mechanism to drive the rotating column to rotate, the vertical planetary reducer can be rotated to adjust the orientation of the vertical planetary reducer, without the need for maintenance personnel to constantly move to different positions, making the maintenance more convenient and greatly improving the maintenance efficiency.

[0032] Other additional advantages and beneficial effects of the present application will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification, and are used to explain the present utility model together with the embodiments of the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0034] Figure 1 is a schematic structural diagram of the present utility model;

[0035] Figure 2 is the Figure 1 amplified structural diagram of the driving mechanism in the present utility model;

[0036] Figure 3 is an axonometric structural diagram of the present utility model;

[0037] Figure 4 is the Figure 3 amplified structural diagram of part A in the present utility model.

[0038] In the figure: 1. Suspension mechanism; 11. Lifting plate; 111. Round hole; 12. Fixed frame; 121. Suspension ring; 13. Rotating column; 131. Hook; 14. First bearing; 15. Driving mechanism; 151. Worm gear; 152. Holed mounting ear; 153. Worm; 154. First driving motor; 16. Second bearing; 17. Counterweight; 2. Hoisting mechanism; 21. Base; 22. N-shaped frame; 23. Lifting seat; 24. Threaded lead screw; 25. Second driving motor; 26. Guide column; 27. Hanging rod. Specific embodiments

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0040] Please refer to Figures 1-4 , the present invention provides the following technical solutions: A hoisting device for repairing a port portal crane, including a suspension mechanism 1, and the suspension mechanism 1 includes: a lifting plate 11, a fixed frame 12, a rotating column 13, and a driving mechanism 15.

[0041] Furthermore, as shown by Figure 1 and Figure 2 , in this embodiment, there is a round hole 111 on the lifting plate 11, the fixed frame 12 is fixed to the top surface of the lifting plate 11, and a suspension ring 121 is fixed to the top end of the fixed frame 12. The rotating column 13 passes through the round hole 111 and is rotatably connected to the lifting plate 11. A hook 131 is fixed to the bottom end of the rotating column 13. The driving mechanism 15 is drivably connected to the rotating column 13 for driving the rotating column 13 to rotate. The driving mechanism 15 includes a worm gear 151, a holed mounting ear 152, a worm 153, and a first driving motor 154. The worm gear 151 is fixed on the rotating column 13, and two holed mounting ears 152 are symmetrically fixed to the top surface of the lifting plate 11. The worm 153 is rotatably installed between the two holed mounting ears 152 and meshes with the worm gear 151. The first driving motor 154 is fixed on the holed mounting ear 152 for driving the worm 153 to rotate. After adopting the above solution, during use, the hook 131 is used to hang the vertical planetary reducer, and the vertical planetary reducer is hoisted to an appropriate height for maintenance operations. During the maintenance process, the first driving motor 154 is started to drive the worm 153 to rotate. The worm 153 drives the worm gear 151 to rotate through the meshing action, and the worm gear 151 drives the rotating column 13 to rotate, enabling the vertical planetary reducer to rotate, for adjusting the orientation of the vertical planetary reducer, without the need for maintenance personnel to constantly move to different positions, making the maintenance more convenient and greatly improving the maintenance efficiency.

[0042] It should be noted that the present utility model uses a first driving motor 154, a worm 153 and a worm wheel 151 to drive the rotating column 13 to rotate, with stable rotation. Moreover, the worm 153 and the worm wheel 151 have a reverse self-locking characteristic, which provides higher safety.

[0043] Preferably, as Figure 1 shown, in this embodiment, it further includes: a first bearing 14. The outer ring of the first bearing 14 is fixed in the round hole 111, and the rotating column 13 passes through the first bearing 14 and is fixedly connected to the inner ring of the first bearing 14, realizing the rotational installation of the rotating column 13 and ensuring the stability of the rotating column 13.

[0044] Preferably, as Figure 1 shown, in this embodiment, it further includes: a second bearing 16. The outer ring of the second bearing 16 is fixed to the fixing frame 12, and the top end of the rotating column 13 is embedded in the second bearing 16 and fixedly connected to the inner ring of the second bearing 16. Therefore, after adopting the above solution, the top end of the rotating column 13 is rotationally connected to the fixing frame 12 through the second bearing 16, further improving the stability of the rotating column 13.

[0045] Preferably, as Figure 1 shown, in this embodiment, it further includes: a counterweight 17. The counterweight 17 is fixed to the top surface of the lifting plate 11 at a position away from the perforated mounting ear 152, ensuring the stability of the lifting plate 11 and preventing the lifting plate 11 from tilting.

[0046] Optionally, as Figure 1 and Figure 3 shown, in this embodiment, it further includes a lifting mechanism 2, and the lifting mechanism 2 includes: a base 21, an n-shaped frame 22, a lifting seat 23, a threaded lead screw 24 and a second driving motor 25. The n-shaped frame 22 is fixed to the top surface of the base 21. One end of the lifting seat 23 is located inside the n-shaped frame 22, and the suspension mechanism 1 is installed on the bottom surface of the other end of the lifting seat 23. The threaded lead screw 24 is rotatably installed between the inner top surface of the n-shaped frame 22 and the base 21, and the threaded lead screw 24 passes through the lifting seat 23 and is connected to the lifting seat 23 by screw thread engagement. The second driving motor 25 is fixed to the top surface of the n-shaped frame 22 and is used to drive the threaded lead screw 24 to rotate. After adopting the above solution, starting the second driving motor 25 to drive the threaded lead screw 24 to rotate, under the screw thread engagement effect, the lifting seat 23 moves in the vertical direction.

[0047] Optionally, as Figure 1 、 Figure 3 and Figure 4 shown, in this embodiment, it further includes: a hanging rod 27. The hanging rod 27 is fixed to the bottom surface of the lifting seat 23, and the hanging rod 27 passes through the hanging ring 121, realizing the stable installation of the suspension mechanism 1.

[0048] Preferably, as Figure 1 and Figure 3 shown, in this embodiment, it further includes: a guiding column 26. Two guiding columns 26 are symmetrically fixed between the inner top surface and the base 21 of the n-shaped frame 22, and the guiding column 26 penetrates through the lifting seat 23. After adopting the above solution, the two guiding columns 26 provided are used to guide the lifting seat 23, improving the stability of the lifting seat 23.

[0049] Preferably, as Figure 1 and Figure 3 shown, in this embodiment, the outer wall of the lifting seat 23 abuts against the inner wall of the n-shaped frame 22, further improving the stability of the lifting seat 23 and preventing the lifting seat 23 from shaking.

[0050] It should be noted that the first driving motor 154 and the second driving motor 25 are both commercially available conventional devices with built-in power switches. Those skilled in the art can make conventional selections according to actual needs. Their working principles are common knowledge well-known to those skilled in the art and have been fully disclosed in the prior art, so they will not be elaborated here.

[0051] The circuit connection involved in the present utility model is a common means adopted by those skilled in the art and can obtain technical inspiration through a limited number of experiments, belonging to the prior art that is widely used.

[0052] The components not described in detail in this article are prior art.

[0053] The working principle and usage process of the present utility model: For the lifting device of the present utility model, when in use, the hook 131 is used to hang the vertical planetary reducer, and then the second driving motor 25 is started to drive the threaded lead screw 24 to rotate. Under the action of screw thread engagement, the lifting seat 23 drives the vertical planetary reducer to move upward, and the vertical planetary reducer is lifted to an appropriate height for maintenance operations;

[0054] During the maintenance process, the first driving motor 154 is started to drive the worm 153 to rotate. The worm 153 drives the worm gear 151 to rotate through meshing, and the worm gear 151 drives the rotating column 13 to rotate, enabling the vertical planetary reducer to rotate, which is used to adjust the orientation of the vertical planetary reducer, eliminating the need for maintenance personnel to constantly move to different positions, making the maintenance more convenient and greatly improving the maintenance efficiency.

[0055] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are 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 recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A lifting device for repairing a port gantry crane, comprising a suspension mechanism (1), characterized in that: The suspension mechanism (1) comprises: A lifting plate (11), wherein a circular hole (111) is provided on the lifting plate (11); A fixing frame (12), the fixing frame (12) being fixed to the top surface of the lifting plate (11), and a lifting ring (121) being fixed to the top of the fixing frame (12); A rotating column (13), the rotating column (13) passes through the circular hole (111) and is rotatably connected to the lifting plate (11), and a hook (131) is fixed at the bottom end of the rotating column (13); A driving mechanism (15), wherein the driving mechanism (15) is drivably connected to the rotating column (13) and is used to drive the rotating column (13) to rotate, and the driving mechanism (15) comprises a worm wheel (151), a mounting ear with a hole (152), a worm (153) and a first driving motor (154), wherein the worm wheel (151) is fixed on the rotating column (13), the two mounting ears with a hole (152) are symmetrically fixed on the top surface of the lifting plate (11), the worm (153) is rotatably mounted between the two mounting ears with a hole (152) and meshed with the worm wheel (151), and the first driving motor (154) is fixed on the mounting ear with a hole (152) and is used to drive the worm (153) to rotate.

2. A lifting device for repairing a port gantry crane according to claim 1, characterized in that: Also includes: A No. 1 bearing (14), the outer ring of the No. 1 bearing (14) is fixed in the circular hole (111), and the rotating column (13) passes through the No. 1 bearing (14) and is fixedly connected to the inner ring of the No. 1 bearing (14).

3. The lifting device for repairing a port gantry crane according to claim 1, characterized in that: Also includes: A No. 2 bearing (16), the outer ring of the No. 2 bearing (16) is fixed to the fixing frame (12), and the top end of the rotating column (13) is embedded in the No. 2 bearing (16) and fixedly connected to the inner ring of the No. 2 bearing (16).

4. The lifting device for repairing a port gantry crane according to claim 1, characterized in that: Also includes: A counterweight block (17) is fixed to a position on the top surface of the lifting plate (11) away from the mounting ear (152) with holes.

5. The lifting device for repairing a port gantry crane according to claim 1, characterized in that: It also includes a lifting mechanism (2), and the lifting mechanism (2) includes: Base (21); An n-type frame (22), wherein the n-type frame (22) is fixed to the top surface of the base (21); A lifting seat (23), one end of the lifting seat (23) is located in the n-shaped frame (22), and the suspension mechanism (1) is installed on the bottom surface of the other end of the lifting seat (23); A threaded screw (24), the threaded screw (24) being rotatably mounted between the inner top surface of the n-shaped frame (22) and the base (21), and the threaded screw (24) passing through the lifting seat (23) and being connected to the lifting seat (23) by means of a threaded engagement; A second drive motor (25), the second drive motor (25) is fixed to the top surface of the n-shaped frame (22), and is used to drive the threaded screw (24) to rotate.

6. The lifting device for repairing a port gantry crane according to claim 5, characterized in that: Also includes: A hanging rod (27), wherein the hanging rod (27) is fixed to the bottom surface of the lifting seat (23), and the hanging rod (27) passes through the hanging ring (121).

7. The lifting device for repairing a port gantry crane according to claim 5, characterized in that: Also includes: Guide columns (26), two of the guide columns (26) are symmetrically fixed between the inner top surface of the n-shaped frame (22) and the base (21), and the guide columns (26) penetrate the lifting seat (23).

8. The lifting device for repairing a port gantry crane according to claim 5, characterized in that: The outer wall of the lifting seat (23) abuts against the inner wall of the n-shaped frame (22).

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