Tower crane winch grounding device for strong electromagnetic field

Abstract

According to the tower crane winch grounding device for the strong electromagnetic field, the grounding device is installed on the winch through the simple structural design, when the winch rotates, oil dirt on the winch can be removed in time, meanwhile, static electricity accumulated on a steel wire rope can be conducted to a tower crane and finally conducted to the ground, and the grounding device is convenient to use. Belongs to the technical field of tower crane equipment and comprises a winch, horizontal mounting rods are fixedly arranged at the centers of the left end and the right end of the winch, and fixing frames are fixedly arranged on the mounting rods; the mounting rod is further provided with a decontamination structure, the decontamination structure is hinged to the fixing frame, and the fixing frame is located on the outer side of the decontamination structure. And a grounding structure is fixedly arranged on the fixing frame.

Description

Technical Field

[0001] This utility model belongs to the technical field of tower crane equipment, specifically relating to a grounding device for tower crane winches used in strong electromagnetic fields. Background Technology

[0002] When a crane operates in a magnetic field environment, the wire rope of the winch will generate static electricity. The accumulated static electricity will affect the normal operation of the equipment. When the static electricity accumulates to a certain level, it will discharge and cause a safety accident at the work site.

[0003] In existing technologies, static electricity in crane wire ropes is eliminated solely through grounding structures. However, in strong field environments, oil stains are more likely to adhere to the surface of the wire rope. The residue of oil stains can affect the good contact between the wire rope and the grounding device, resulting in poor static electricity elimination and creating safety hazards for the equipment. Utility Model Content

[0004] The purpose of this invention is to provide a grounding device for tower crane winches used in strong electromagnetic fields. Through a simple structural design, the grounding device is installed on the winch. When the winch rotates, the oil stains on the winch can be removed in time, and the static electricity accumulated on the wire rope can be conducted to the tower crane and finally into the ground.

[0005] To achieve the above objectives, this utility model provides a grounding device for a tower crane winch for strong electromagnetic fields, including a winch body, with horizontal mounting rods fixedly installed at the center of the left and right ends of the winch body, and a fixing frame fixedly installed on the mounting rods;

[0006] The mounting rod is also provided with a cleaning structure, which is hinged to the mounting rod, and the fixing frame is located on the outside of the cleaning structure;

[0007] A grounding structure is fixedly installed on the mounting frame.

[0008] Furthermore, the fixing frame includes two vertical rods, which are respectively sleeved on the two mounting rods;

[0009] A horizontal stop is fixedly installed between the two vertical rods.

[0010] Furthermore, the decontamination structure includes two vertical rotating rods, which are located inside the two vertical rods. Each rotating rod has a locking groove, which engages with the stop rod.

[0011] A connecting rod with an arc-shaped upper end is fixedly provided between the two rotating rods;

[0012] Oil-absorbing cotton is provided on the connecting rod.

[0013] Furthermore, the cleaning structure also includes a curved groove formed at the lower end of the stop bar, and the stop bar is rotatably connected to the connecting rod;

[0014] Both rotating rods have a sliding groove on their inner sides, and a return spring is fixedly installed in the sliding groove. A slider is fixedly installed at the lower end of the return spring.

[0015] The left and right ends of the connecting rod extend into the slide groove and are fixedly connected to the slider.

[0016] Furthermore, the grounding structure includes a conductive port opened on the outside of the fixed frame, a grounding wire is fixedly installed at the conductive port, one end of the grounding wire is fixedly connected to the fixed frame, and the other end is fixedly connected to the tower crane.

[0017] The tower crane winch grounding device provided by this utility model, designed for use in strong electromagnetic fields, allows for the simple removal of oil stains from the wire rope using absorbent cotton, without affecting the normal operation of the winch. This eliminates the need for real-time operator intervention, reducing potential safety hazards. Furthermore, after removing the waste oil stains, the same procedure can be followed to install oil-soaked absorbent cotton onto the grounding device for oiling and maintenance of the wire rope.

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the working state of this utility model.

[0021] Figure 3 This is a front view schematic diagram of this utility model.

[0022] Figure 4 This is a schematic diagram of the cleaning structure.

[0023] Figure 5 This is a schematic diagram of the rotating rod structure.

[0024] Explanation of reference numerals in the attached drawings: 1. Winch body; 2. Mounting rod; 3. Fixing frame; 31. Vertical rod; 32. Stop bar; 4. Decontamination structure; 41. Rotating rod; 42. Locking groove; 43. Connecting rod; 44. Oil-absorbing cotton; 45. Bend groove; 46. Slide groove; 47. Sliding block; 48. Return spring; 5. Grounding structure; 51. Conductive port; 52. Grounding wire. Detailed Implementation

[0025] To further illustrate the technical means and effects of this utility model in achieving its intended purpose, the specific implementation methods, structural features and effects of this utility model are described in detail below with reference to the accompanying drawings and embodiments.

[0026] 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 scope of protection of the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "aligned", "overlapping", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0029] Example 1

[0030] This embodiment provides, for example Figures 1-5 The grounding device for a tower crane winch for strong electromagnetic fields shown includes a winch body 1, with horizontal mounting rods 2 fixedly installed at the center of the left and right ends of the winch body 1. The mounting rods 2 are used to install a fixing frame 3 and a decontamination structure 4.

[0031] The mounting rod 2 is also equipped with a cleaning structure 4, which is hinged to the fixing frame 3. The fixing frame 3 is located outside the cleaning structure 4 and at the center of the winch body 1, so that the cleaning structure 4 can rotate around the mounting rod 2, which facilitates the operation of the cleaning structure 4.

[0032] The fixing frame 3 serves as a limit and auxiliary structure to prevent excessive movement of the cleaning structure 4;

[0033] A grounding structure 5 is fixedly installed on the fixed frame 3, which can discharge the static electricity generated on the winch body 1.

[0034] Furthermore, such as Figure 1 and Figure 2 As shown, the fixing frame 3 sets includes two vertical rods 31, and the two vertical rods 31 are respectively sleeved on the two mounting rods 2;

[0035] A horizontal stop bar 32 is welded between the two vertical rods 31. The two vertical rods 31 and the stop bar 32 form an approximately H-shaped structure. The stop bar 32 is used to prevent excessive movement of the cleaning structure 4, and at the same time, it can also allow the cleaning structure 4 to be snapped onto the fixing frame 3.

[0036] Furthermore, such as Figure 3 and Figure 4 As shown, the cleaning structure 4 includes two vertical rotating rods 41, located inside the two vertical rods 31. Each rotating rod 41 has a locking groove 42. The rotating rods 41 drive the entire cleaning structure 4 to rotate. The locking grooves 42 engage with the stop rods 32, and together with the fixing bracket 3, ensure that the cleaning structure 4 is in the working state, i.e., as shown... Figure 2 As shown, the cleaning structure 4 is more stable and reliable;

[0037] A connecting rod 43 with an arc-shaped upper end is fixedly installed between the two rotating rods 41;

[0038] Oil-absorbing cotton 44 is installed on the connecting rod 43. The oil-absorbing cotton 44 is used to clean the oil and dirt on the wire rope, and can also be used to apply oil and perform maintenance on the wire rope.

[0039] Furthermore, such as Figure 1 and Figure 5 As shown, the cleaning structure 4 also includes a curved groove 45 opened at the lower end of the stop bar 32, and the stop bar 32 is rotatably connected to the connecting rod 43;

[0040] Both rotating rods 41 have a sliding groove 46 on their inner sides. A return spring 48 is fixedly installed in the sliding groove 46, and a slider 47 is fixedly installed at the lower end of the return spring 48.

[0041] The left and right ends of the connecting rod 43 extend into the slide groove 46 and are fixedly connected to the slider 47. A return spring 48 is fixedly installed above the slider 47, so that the connecting rod 43 can move up and down in the slide groove 46 of the rotating rod 41. Through the cooperation of the connecting rod 43 and the curved groove 45, the cleaning structure 4 can stick to the steel wire rope when it is working and can spring back when it is not working, which facilitates the replacement of the oil-absorbing cotton 44.

[0042] Furthermore, the grounding structure 5 includes a conductive port 51 opened on the outside of the fixed frame 3. A grounding wire 52 is fixedly installed at the conductive port 51. One end of the grounding wire 52 is fixedly connected to the fixed frame 3, and the other end is fixedly connected to the tower crane. The grounding structure 5 is installed on the fixed frame 3 to ensure that the static electricity generated by the wire rope can be conducted to the tower crane through the grounding wire 52 at any time, and then finally conducted to the ground by the grounding of the tower crane. This prevents the accumulation of static electricity during the operation, which would make it easier for oil stains to accumulate and increase safety hazards.

[0043] In use: First, install the oil-absorbing cotton 44 onto the connecting rod 43 of the cleaning structure 4. Then, rotate the rotating rod 41 to push the cleaning structure 4 towards the fixing frame 3 until the locking groove 42 of the rotating rod 41 engages with the stop rod 32. The cleaning structure 4 then enters the working state, i.e. Figure 2 As shown, at this time, the connecting rod 43 will be squeezed downward under the action of the curved groove 45, thereby driving the oil-absorbing cotton 44 to move downward and stick to the wire rope. At this time, start the winch body 1, and the oil-absorbing cotton 44 can be used to remove the oil stains on the wire rope.

[0044] After cleaning the oil stains, pull back the cleaning structure 4 and replace the oil-absorbing cotton 44 soaked in lubricating oil to perform oiling maintenance on the wire rope. The grounding device can prevent workers from not having to pay attention to the device and other operations in the high-altitude tower crane environment, reducing safety hazards. At the same time, the grounding structure 5 can conduct static electricity to the ground at all times, further ensuring the safety of the cleaning process.

[0045] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. A grounding device for a tower crane winch used in strong electromagnetic fields, comprising a winch body (1), characterized in that: A horizontal mounting rod (2) is fixedly installed at the center of the left and right ends of the winch body (1), and a fixing frame (3) is fixedly installed on the mounting rod (2); The mounting rod (2) is also provided with a cleaning structure (4), which is hinged to the mounting rod (2), and the fixing frame (3) is located on the outside of the cleaning structure (4); A grounding structure (5) is fixedly installed on the fixing frame (3).

2. The grounding device for tower crane winches in strong electromagnetic fields as described in claim 1, characterized in that: The fixing frame (3) includes two vertical rods (31), which are respectively sleeved on the two mounting rods (2); A horizontal stop bar (32) is fixedly installed between the two vertical bars (31).

3. A grounding device for tower crane winches in a strong electromagnetic field as described in claim 2, characterized in that: The cleaning structure (4) includes two vertical rotating rods (41), which are located inside the two vertical rods (31). Each rotating rod (41) has a locking groove (42) which engages with the stop rod (32). A connecting rod (43) with an arc-shaped upper end is fixedly provided between the two rotating rods (41); Oil-absorbing cotton (44) is provided on the connecting rod (43).

4. A grounding device for tower crane winches in a strong electromagnetic field as described in claim 3, characterized in that: The cleaning structure (4) also includes a curved groove (45) opened at the lower end of the baffle (32), and the baffle (32) is rotatably connected to the connecting rod (43); The inner sides of both rotating rods (41) are provided with sliding grooves (46), and a return spring (48) is fixedly provided in the sliding grooves (46). A slider (47) is fixedly provided at the lower end of the return spring (48). The left and right ends of the connecting rod (43) extend into the slide groove (46) and are fixedly connected to the slider (47).

5. A grounding device for tower crane winches in a strong electromagnetic field as described in claim 1, characterized in that: The grounding structure (5) includes a conductive port (51) opened on the outside of the fixed frame (3). A grounding wire (52) is fixedly installed at the conductive port (51). One end of the grounding wire (52) is fixedly connected to the fixed frame (3), and the other end is fixedly connected to the tower crane.

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