Hoisting tool

Abstract

The utility model provides a hoisting tool, which comprises two vertical plates and a lifting structure, the two vertical plates are arranged at intervals along the thickness direction, avoiding openings are arranged on the vertical plates, the avoiding openings on the two vertical plates are oppositely arranged, the lifting structure is arranged on the vertical plates, and the lifting tool can be lifted through the lifting structure; the rotating rollers are arranged between the two vertical plates and extend in the interval direction of the two vertical plates, and the multiple rotating rollers are arranged at intervals along the periphery of the receding opening and used for bearing nuts; the stopping piece is arranged on the vertical plate, the stopping piece is movably connected with the vertical plate, the stopping piece is provided with a stopping position and an avoiding position which are oppositely arranged relative to the avoiding opening, and when the stopping piece is located at the stopping position, the stopping piece partially shields the avoiding opening; when the stop piece is located at the avoiding position, the stop piece avoids the avoiding opening. By means of the technical scheme, the problem that in the prior art, nut hoisting work is difficult can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of heavy equipment assembly, in particular to a lifting tool. Background Art

[0002] Currently, during the assembly process of heavy equipment, when large shafts need to be assembled or large bolts need to be tightened, large nuts usually need to be hoisted to a certain height for installation.

[0003] In the prior art, a wire rope is usually used to tie the nut. After the nut is lifted to the installation height by a crane, the wire rope is removed and the nut is lifted by a lifting method. After manual centering, the nut is rotated to complete the assembly. At the same time, since the nut needs to be rotated during the assembly process, the wire rope cannot be used to tie the nut during the lifting process. In the traditional installation process, in order to put the nut into the installation position, the wire rope needs to be used to tie or loosen the nut multiple times. The lifting process is time-consuming and labor-intensive, and the efficiency is low. In addition, since the nut is usually large in size, there is an inevitable risk of the nut tipping over and falling off during manual centering and nut rotation during the lifting process, which endangers the personal safety of the workers. Utility Model Content

[0004] The utility model provides a lifting tool to solve the problem that the nut lifting work is difficult in the prior art.

[0005] The utility model provides a lifting tool, which includes: two vertical plates, which are arranged at intervals along the thickness direction, and avoidance openings are provided on the vertical plates, and the avoidance openings on the two vertical plates are arranged opposite to each other, and a lifting structure is provided on the vertical plates, so that the lifting tool can be lifted by the lifting structure; a rotating roller, which is arranged between the two vertical plates and extends along the spacing direction of the two vertical plates, and a plurality of rotating rollers are provided, and the plurality of rotating rollers are arranged at intervals along the periphery of the avoidance opening for supporting nuts; a stopper, which is arranged on the vertical plate, and is movably connected to the vertical plate, and has a stop position and an avoidance position relatively set relative to the avoidance opening, and when the stopper is at the stop position, the stopper partially blocks the avoidance opening; when the stopper is at the avoidance position, the stopper avoids the avoidance opening.

[0006] Furthermore, the stop member includes a baffle, which is rotatably arranged on the vertical plate. Each vertical plate is provided with multiple baffles. The rotation axis of the baffle is in the same direction as the rotation axis of the rotating roller. The baffle can rotate relative to the avoidance opening to switch between the stop position and the avoidance position.

[0007] Furthermore, a plurality of baffles are provided on both end surfaces of each vertical plate in the thickness direction.

[0008] Furthermore, the shape of the periphery of the avoidance opening is a non-closed figure.

[0009] Furthermore, the shape of the periphery of the avoidance opening is an arc, the arc angle of the arc is less than or equal to 180°, and the center of the arc is located on the center line of the vertical plate perpendicular to the width direction.

[0010] Furthermore, the lifting structure includes a hook, and each vertical plate is provided with a hook at both ends thereof which are opposite to each other in the width direction.

[0011] Furthermore, the lifting tool also includes a connecting plate, which is fixed between the two vertical plates.

[0012] Furthermore, two connecting plates are provided, and the two connecting plates are symmetrically arranged at two ends of the vertical plate that are opposite to each other along the width direction. Lifting holes are provided on the connecting plates, and the lifting holes on the two connecting plates are opposite to each other.

[0013] Furthermore, the rotating roller includes a fixed rod and a plurality of bearings. The fixed rod is fixed between the two vertical plates. The bearings are sleeved on the fixed rod. The plurality of bearings are spaced apart along the extending direction of the fixed rod.

[0014] Furthermore, a sleeve is provided between two adjacent bearings. The sleeve is sleeved on the fixing rod, and two ends of the sleeve are respectively in contact with the inner rings of the two bearings.

[0015] Through the above-mentioned setting, the nut can be placed on multiple rotating rollers, and the wire rope belt is tied to the lifting structure of the vertical plate, and the vertical plate is lifted to the installation height by a crane to achieve the lifting of the nut. After the nut is lifted to the preset height, the nut can be manually assisted to be centered. Due to the setting of the rotating roller, the nut can be rotated on the rotating roller without loosening the wire rope belt. The nut can be manually rotated through the avoidance opening to achieve the installation of the nut, thereby improving the installation efficiency of the nut; and, in the process of lifting and installing the nut, the stoppers on the two vertical plates can be adjusted to the stop position to prevent the nut from tipping over and falling off, thereby ensuring the personal safety of the staff; after the installation is completed, the stopper can be adjusted to the avoidance position, and the nut can be separated from the lifting tool through the avoidance opening, and can be reinstalled without having to tie the wire rope belt again, thereby further improving the efficiency of the nut installation work. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 Shows a front view of the lifting tool provided by the utility model;

[0018] Figure 2 Shows a top view of the lifting tool provided by the utility model;

[0019] Figure 3 A side view of the lifting tool provided by the utility model is shown.

[0020] The above drawings include the following reference numerals:

[0021] 10. Vertical plate; 101. Avoidance; 102. Hook;

[0022] 20. Rotating roller; 201. Bearing; 202. Sleeve;

[0023] 30. Baffle;

[0024] 40. Connecting plate; 401. Lifting hole. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] This lifting tool is primarily used on WK-series excavator shovels, such as the WK-55, WK-35, and WK-20, used in open-pit coal mines. Produced by China Taiyuan Heavy Machinery Group Corporation, the shovel's thrust system consists of a thrust drive system, a thrust gearbox, a thrust transmission mechanism, a thrust shaft and pinion, a saddle, a thrust brake assembly, and a thrust limit switch sensor. The shovel's thrust shaft is a large, machined shaft. After installation, both ends extend outward from the boom. All parts of the thrust shaft located outside the boom are ultimately positioned axially by slotted nuts at each end.

[0027] like Figures 1 to 3As shown, an embodiment of the present invention provides a lifting tool for lifting a nut to the installation position of a push shaft, and the lifting tool includes a vertical plate 10, a rotating roller 20, and a stopper. There are two vertical plates 10, and the two vertical plates 10 are spaced apart in the thickness direction. A avoidance opening 101 is provided on the vertical plates 10, and the avoidance openings 101 on the two vertical plates 10 are arranged opposite to each other. A lifting structure is provided on the vertical plates 10, and the lifting tool can be lifted by the lifting structure. The rotating roller 20 is provided between the two vertical plates 10 and extends along the spacing direction of the two vertical plates 10. There are multiple rotating rollers 20, and the multiple rotating rollers 20 are spaced apart along the periphery of the avoidance opening 101 to support the nut. The stopper is arranged on the vertical plate 10, and the stopper is movably connected to the vertical plate 10, and has a stop position and an avoidance position relatively set relative to the avoidance opening 101. When the stopper is at the stop position, the stopper partially blocks the avoidance opening 101; when the stopper is at the avoidance position, the stopper avoids the avoidance opening 101.

[0028] Through the above-mentioned setting, the nut can be placed on a plurality of rotating rollers 20, and the steel wire rope belt is tied to the lifting structure of the vertical plate 10, and the vertical plate 10 is lifted to the installation height by a crane to lift the nut. After the nut is lifted to the preset height, the nut can be manually assisted to be centered. Due to the setting of the rotating roller 20, the nut can be rotated on the rotating roller 20 without loosening the steel wire rope belt. The nut can be manually rotated through the avoidance opening 101 to achieve the installation of the nut, thereby improving the installation efficiency of the nut; and, in the process of lifting and installing the nut, the stoppers on the two vertical plates 10 can be adjusted to the stop position to prevent the nut from tipping over and falling off, thereby ensuring the personal safety of the staff; after the installation is completed, the stopper can be adjusted to the avoidance position, and the nut can be separated from the lifting tool through the avoidance opening 101, and can be reinstalled without having to tie the steel wire rope belt again, thereby further improving the efficiency of the nut installation work.

[0029] In an embodiment of the present application, the stopper includes a baffle 30, which is rotatably mounted on the vertical plate 10. Each vertical plate 10 is provided with a plurality of baffles 30. The rotation axis of the baffle 30 is in the same direction as the rotation axis of the rotating roller 20, and the rotation axis can rotate relative to the avoidance opening 101 to switch between a stop position and an avoidance position. Specifically, when the baffle 30 rotates to block the avoidance opening 101, the stopper is in the stop position. At this time, the baffle 30 can partially block the avoidance opening 101 or completely block the avoidance opening 101. As long as the baffle 30 rotates to partially overlap with the avoidance opening 101, it can serve as a stop for the nut. By providing the baffle 30, when the nut is rotated to be installed, the baffle 30 can prevent the nut from tipping over and falling off. Moreover, during the tightening process of the nut, the baffle 30 can move horizontally with the vertical plate 10, always blocking the nut without affecting the rotation of the nut.

[0030] Specifically, the number of baffles 30 may be 3, 4, or 5, etc., as long as the stopping effect on the nut can be achieved.

[0031] In a specific embodiment of the present application, three baffles 30 are provided, one of which is provided at the bottom of the avoidance opening 101, and the other two baffles 30 are provided at both ends of the vertical plate 10 opposite to each other in the width direction to serve as a stop for the nut.

[0032] Furthermore, each vertical plate 10 is provided with a plurality of baffles 30 on both end surfaces along the thickness direction. Through such a configuration, the baffles 30 provided on opposite sides of the two vertical plates 10 can assist in securing the nuts. Since the nuts are too heavy, providing baffles 30 on only one side of the vertical plate 10 still poses the risk of deformation caused by the nuts. During the process of lifting the nuts, the baffles 30 can further prevent the nuts from falling, thereby improving the safety of the lifting operation.

[0033] In the present application, the shape of the periphery of the avoidance opening 101 is a non-closed figure, that is, the avoidance opening 101 has an open structure. Through the above-mentioned setting, the multiple baffles 30 spaced apart along the periphery of the avoidance opening 101 will not serve as a stop for the overall nut, so as to facilitate the rotation of the nut during the assembly process, and facilitate the assembly and separation of the nut and the lifting tool, thereby improving the convenience of work.

[0034] In a specific embodiment of the present application, the periphery of the escape opening 101 is arc-shaped, with an arc angle of less than or equal to 180°, and the center of the arc is located on the midline of the vertical plate 10 perpendicular to the width direction. Through this arrangement, the multiple rotating rollers 20 can form an arc to adapt to the shape of the nut, providing support for the nut while not hindering its rotation. Furthermore, through this arrangement, the periphery of the escape opening 101 is semicircular, and the baffle 30 not only serves as a stop for the nut, but also facilitates its assembly and separation.

[0035] Specifically, the lifting structure includes hooks 102, which are provided at both ends of each vertical plate 10, which are opposite each other in the width direction. With this arrangement, four hooks 102 are provided on both vertical plates 10, so that the crane can use the wire rope to lift the lifting tool and ensure the stability of the lifting tool during lifting.

[0036] Specifically, the lifting tool further includes a connecting plate 40, which is fixedly arranged between the two vertical plates 10. Through the above arrangement, the connecting plate 40 can ensure the structural stability of the lifting tool as a whole, prevent the lifting tool from being deformed as a whole, and further ensure the safety of the lifting work.

[0037] Furthermore, two connecting plates 40 are provided, symmetrically positioned at opposite ends of the vertical plate 10 along the width direction. Lifting holes 401 are provided on the connecting plates 40, and the lifting holes 401 on the two connecting plates 40 are positioned opposite each other. This arrangement facilitates the overall lifting of the lifting tool, ensuring stability during the lifting operation. The opposite positioning of the lifting holes 401 on the two connecting plates 40 also prevents the overall deflection of the lifting tool and prevents the nut from falling off.

[0038] In this application, the rotating roller 20 includes a fixed rod and multiple bearings 201. The fixed rod is fixed between the two vertical plates 10, and the bearings 201 are mounted on the fixed rod. The multiple bearings 201 are spaced apart along the extension direction of the fixed rod. This arrangement allows the nut to be rotated relative to the lifting tool via the rotating roller 20, facilitating the tightening of the nut after centering, thereby improving the convenience of nut installation.

[0039] Furthermore, a sleeve 202 is provided between two adjacent bearings 201. The sleeve 202 is sleeved onto the fixing rod, with both ends of the sleeve 202 respectively contacting the inner races of the two bearings 201. This arrangement prevents movement of the multiple bearings 201, preventing uneven distribution of the multiple bearings 201 on the rotating roller 20, further preventing the nut from tipping over. It also reduces the need for frequent replacement of bearings 201 due to uneven force on the multiple bearings 201, thereby reducing maintenance costs.

[0040] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0041] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0042] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0043] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0044] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.

[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A lifting tool, characterized in that: The lifting tools include: Two vertical plates (10) are provided, the two vertical plates (10) are spaced apart in the thickness direction, the vertical plates (10) are provided with avoidance openings (101), the avoidance openings (101) on the two vertical plates (10) are arranged opposite to each other, and the vertical plates (10) are provided with a lifting structure, and the lifting tool can be lifted by the lifting structure; a rotating roller (20) disposed between the two vertical plates (10) and extending along the spacing direction of the two vertical plates (10); a plurality of rotating rollers (20) are provided, and the plurality of rotating rollers (20) are spaced apart along the periphery of the avoidance opening (101) for supporting the nut; A stopper is provided on the vertical plate (10), the stopper is movably connected to the vertical plate (10), and has a stop position and a avoidance position relatively arranged relative to the avoidance opening (101); when the stopper is located at the stop position, the stopper partially blocks the avoidance opening (101); when the stopper is located at the avoidance position, the stopper avoids the avoidance opening (101).

2. The lifting tool according to claim 1, characterized in that: The stopper comprises a baffle (30), which is rotatably arranged on the vertical plate (10), and a plurality of baffles (30) are arranged on each vertical plate (10). The rotation axis of the baffle (30) is in the same direction as the rotation axis of the rotating roller (20), and the baffle (30) can be rotated relative to the avoidance opening (101) to switch between the stop position and the avoidance position.

3. The lifting tool according to claim 2, characterized in that: A plurality of baffles (30) are provided on both end surfaces of each vertical plate (10) in the thickness direction.

4. The lifting tool according to claim 1, characterized in that: The shape of the periphery of the avoidance opening (101) is a non-closed figure.

5. The lifting tool according to claim 4, characterized in that: The shape of the periphery of the avoidance opening (101) is arc-shaped, the arc angle of the arc is less than or equal to 180 degrees, and the center of the arc is located on the center line of the vertical plate (10) perpendicular to the width direction.

6. The lifting tool according to claim 1, characterized in that: The hoisting structure comprises a hook (102), and each upright plate (10) is provided with the hook (102) at both ends thereof which are opposite to each other in the width direction.

7. The lifting tool according to claim 1, characterized in that: The lifting tool further comprises a connecting plate (40), and the connecting plate (40) is fixedly arranged between the two vertical plates (10).

8. The lifting tool according to claim 7, characterized in that: Two connecting plates (40) are provided, and the two connecting plates (40) are symmetrically arranged at two opposite ends of the vertical plate (10) along the width direction. The connecting plates (40) are provided with hanging holes (401), and the hanging holes (401) on the two connecting plates (40) are arranged opposite to each other.

9. The lifting tool according to claim 1, characterized in that: The rotating roller (20) comprises a fixed rod and a plurality of bearings (201); the fixed rod is fixed between the two vertical plates (10); the bearings (201) are sleeved on the fixed rod; and the plurality of bearings (201) are spaced apart along the extending direction of the fixed rod.

10. The lifting tool according to claim 9, characterized in that: A sleeve (202) is provided between two adjacent bearings (201), the sleeve (202) being sleeved on the fixing rod, and two ends of the sleeve (202) respectively abutting against the inner rings of the two bearings (201).

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