A lifting drum limiting device

Abstract

The utility model relates to the technical field of stacking machine, specifically disclose a kind of lifting drum limiting device, including limiting mechanism, the limiting mechanism includes limiting rod, the limiting rod is parallel to the rotation axis of lifting drum setting, limiting rod is fixedly connected with mounting bracket, limiting rod is connected with lifting motor by mounting bracket;The first limiting spacing is formed between the limiting rod and the rope groove center of lifting drum, the first limiting spacing is greater than the maximum diameter of lifting cable available lifting drum The utility model can form the first limiting spacing between the limiting rod and the rope groove center of lifting drum by the connection of mounting bracket and base, so that the device can adapt to all lifting cables meeting specifications when being used by the first limiting spacing;Without adjusting the position of limiting rod after the diameter of lifting cable changes;The second limiting spacing between the reinforcing plate and the lifting cable is less than the depth of rope groove, effectively ensures that lifting cable cannot jump out of rope groove.

Description

Technical Field

[0001] This utility model relates to the field of stacker crane technology, and specifically to a lifting drum limiting device. Background Technology

[0002] The lifting mechanism in existing stacker cranes generally adopts a drum-type lifting mechanism. When using the drum-type lifting mechanism, the steel cable will be wound in an orderly manner along the rope grooves on the surface of the drum. However, after the equipment has been used for a long time, various situations may cause the steel cable wound on the lifting drum to loosen and cause the steel cable to fall out of the rope grooves and not be wound in the order of the rope grooves, resulting in incorrect winding of the steel cable. Rewinding the steel cable requires unwinding the entire steel cable and then rewinding it, which is a lot of work. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a lifting drum limiting device.

[0004] The lifting drum limiting device of this utility model includes a lifting motor mounted on a base, the output shaft of the lifting motor being bolted to the lifting drum, the lifting drum having a rope groove for guiding the winding of the lifting steel cable, and a limiting mechanism including a limiting rod, the limiting rod being arranged parallel to the rotation axis of the lifting drum, the limiting rod being fixedly connected to a mounting bracket, and the limiting rod being connected to the lifting motor through the mounting bracket;

[0005] A first limiting distance is formed between the limiting rod and the center of the rope groove of the lifting drum, and the first limiting distance is greater than the maximum diameter of the lifting steel cable that can be used on the lifting drum.

[0006] A reinforcing plate is installed on the limiting rod. The reinforcing plate protrudes partially toward the lifting drum, and the second limiting distance between the reinforcing plate and the lifting cable is less than the depth of the rope groove.

[0007] Furthermore, the reinforcing plate has a chamfered slope on the side facing the lifting drum.

[0008] Furthermore, the reinforcing plate and the limiting rod are detachably connected.

[0009] Furthermore, the reinforcing plate is provided with several adjustment holes perpendicular to the lifting drum;

[0010] The limiting rod has a mounting hole corresponding to the adjustment hole, and the reinforcing plate is installed by bolts passing through the adjustment hole and the mounting hole.

[0011] Furthermore, both ends of the lifting drum are equipped with limiting rings that protrude from the surface of the lifting drum, and the reinforcing plate is set on the limiting rod corresponding to the rope groove area between the two limiting rings;

[0012] The first limiting distance of the limiting rod is greater than the height of the part of the limiting ring that protrudes from the lifting drum.

[0013] Furthermore, the lifting drum has a rope inlet hole at the end away from the output shaft of the lifting motor. The rope inlet hole is located at the beginning of the rope groove, and a fixing mechanism for fixing the lifting steel cable is installed inside the lifting drum.

[0014] Furthermore, the fixing mechanism includes a fixing plate and a mounting plate. Both the mounting plate and the fixing plate have threaded holes. The mounting plate is mounted on the fixing plate by bolts passing through the threaded holes.

[0015] Furthermore, the mounting plate has two limiting grooves that are adapted to the lifting steel cable, symmetrically opened along the threaded hole on the side near the fixed plate.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This utility model, through the connection between the mounting frame and the base, can form a first limiting distance between the limiting rod and the center of the rope groove of the lifting drum. Thus, through the first limiting distance, the device can be adapted to all lifting steel cables that meet the specifications during use; there is no need to adjust the position of the limiting rod after the diameter of the lifting steel cable changes; wherein the second limiting distance between the reinforcing plate and the lifting steel cable is less than the depth of the rope groove, effectively ensuring that the lifting steel cable cannot jump out of the rope groove.

[0018] 2. This utility model inserts the beginning end of the lifting steel cable through the rope inlet hole into the lifting drum, and fixes the beginning end of the lifting steel cable with a fixed pressure plate, an installation pressure plate, and corresponding bolts. This avoids the installation of the beginning end of the lifting steel cable affecting the overall length of the lifting drum, effectively reducing the corresponding materials and saving the space used by the equipment. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle;

[0022] Figure 3 This is a top view of the structure of this utility model;

[0023] Figure 4 for Figure 3 Enlarged structural diagram at point B.

[0024] In the diagram: 1. Base; 2. Lifting motor; 3. Lifting drum; 31. Rope groove; 32. Limiting ring; 4. Limiting mechanism; 41. Mounting bracket; 42. Limiting rod; 43. Reinforcing plate; 44. Adjusting hole;

[0025] 5. Lifting steel cables;

[0026] 6. First limit distance; 7. Second limit distance;

[0027] 8. Fixing mechanism; 81. Fixing pressure plate; 82. Installing pressure plate; 83. Limiting groove;

[0028] 9. Rope inlet hole. Detailed Implementation

[0029] The following drawings will disclose several embodiments of this utility model. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these physical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0030] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0031] Please see Figure 1 , Figure 3 and Figure 4 The lifting drum limiting device of this utility model includes a lifting motor 2 installed on a base 1. The output shaft of the lifting motor 2 is bolted to the lifting drum 3. The lifting drum 3 is provided with a rope groove 31 for guiding the winding of the lifting steel cable 5. It also includes a limiting mechanism 4. The limiting mechanism 4 includes a limiting rod 42. The limiting rod 42 is arranged parallel to the rotation axis of the lifting drum 3. A mounting frame 41 is fixedly connected to the limiting rod 42. The limiting rod 42 is connected to the lifting motor 2 through the mounting frame 41.

[0032] A first limiting distance 6 is formed between the limiting rod 42 and the center of the rope groove 31 of the lifting drum 3. The first limiting distance 6 is greater than the maximum diameter of the lifting steel cable 5 that can be used on the lifting drum 3.

[0033] A reinforcing plate 43 is installed on the limiting rod 42. The reinforcing plate 43 protrudes partially toward the lifting drum 3, and the second limiting distance 7 between the reinforcing plate 43 and the lifting steel cable 5 is less than the depth of the rope groove 31.

[0034] In this embodiment, according to industry standards, the diameter of the lifting cable 5 is greater than the depth of the rope groove 31.

[0035] Working principle:

[0036] In use, the connection between the mounting bracket 41 and the base 1 allows the limiting rod 42 and the center of the rope groove 31 of the lifting drum 3 to form a first limiting distance 6 for accommodating the passage of the lifting steel cable 5. Thus, through the first limiting distance 6, the device can be adapted to all lifting steel cables 5 that meet the specifications during use; there is no need to adjust the position of the limiting rod 42 after the diameter of the lifting steel cable 5 is changed.

[0037] The second limiting distance 7 between the reinforcing plate 43 and the lifting cable 5 is less than the depth of the rope groove 31, which effectively ensures that the lifting cable 5 cannot jump out of the rope groove 31.

[0038] Furthermore, the reinforcing plate 43 has a chamfered slope on the side facing the lifting drum 3 to reduce the wear on the lifting cable 5 when it comes into contact with the reinforcing plate 43.

[0039] Furthermore, the reinforcing plate 43 is detachably connected to the limiting rod 42, thereby effectively enabling the replacement of the reinforcing plate 43 and effectively preventing the second limiting distance 7 from increasing after the reinforcing plate 43 wears out, which could cause the lifting cable 5 to go out of the rope groove 31.

[0040] Furthermore, the reinforcing plate 43 has several adjustment holes 44 perpendicular to the lifting drum 3, and the adjustment holes 44 are elongated holes; the limiting rod 42 has mounting holes corresponding to the adjustment holes 44, and the reinforcing plate 43 is installed by bolts passing through the adjustment holes 44 and the mounting holes. The reinforcing plate 43 and the limiting rod 42 can be disassembled and assembled by bolts; and by setting the adjustment holes 44, the distance between the reinforcing plate 43 and the limiting rod 42 can also be changed, so that after the specifications of the lifting steel cable 5 are changed, the distance between the reinforcing plate 43 and the limiting rod 42 can be adjusted so that the second limiting distance 7 conforms to different specifications of the lifting steel cable 5.

[0041] Furthermore, both ends of the lifting drum 3 are equipped with limiting rings 32 that protrude from the surface of the lifting drum 3. The reinforcing plate 43 is set on the limiting rod 42 in the area of ​​the rope groove 31 between the two limiting rings 32, which can effectively save the length of the reinforcing plate 43. The first limiting distance 6 of the limiting rod 42 is greater than the height of the part of the limiting ring 32 that protrudes from the lifting drum 3, which can ensure that the limiting rod 42 will not interfere during actual installation.

[0042] Please see Figure 1 and Figure 3 Furthermore, the lifting drum 3 has a rope inlet hole 9 at the end furthest from the output shaft of the lifting motor 2. The rope inlet hole 9 is located at the beginning of the rope groove 31, and a fixing mechanism 8 for fixing the lifting cable 5 is installed inside the lifting drum 3. The fixing mechanism 8 includes a fixing pressure plate 81 and a mounting pressure plate 82. Both the mounting pressure plate 82 and the fixing pressure plate 81 have threaded holes. The mounting pressure plate 82 is installed on the fixing pressure plate 81 by bolts passing through the threaded holes. On the side of the mounting pressure plate 82 closest to the fixing pressure plate 81, two limiting grooves 83 adapted to the lifting cable 5 are symmetrically provided along the threaded holes.

[0043] In the above design, the beginning end of the lifting cable 5 is inserted into the lifting drum 3 through the rope inlet hole 9, and the beginning end of the lifting cable 5 is fixed and installed by the fixing plate 81, the mounting plate 82 and the corresponding bolts. This avoids the installation of the beginning end of the lifting cable 5 affecting the overall length of the lifting drum 3, effectively reducing the corresponding materials and saving the space used by the equipment.

[0044] The above are merely embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A lifting drum limiting device, comprising a lifting motor (2) mounted on a base (1), wherein the output shaft of the lifting motor (2) is bolted to a lifting drum (3), and the lifting drum (3) is provided with a rope groove (31) for guiding the winding of a lifting steel cable (5), characterized in that: It also includes a limiting mechanism (4), which includes a limiting rod (42). The limiting rod (42) is arranged parallel to the rotation axis of the lifting drum (3). A mounting bracket (41) is fixedly connected to the limiting rod (42). The limiting rod (42) is connected to the lifting motor (2) through the mounting bracket (41). A first limiting distance (6) is formed between the limiting rod (42) and the center of the rope groove (31) of the lifting drum (3), and the first limiting distance (6) is greater than the maximum diameter of the lifting cable (5) that can be used by the lifting drum (3). A reinforcing plate (43) is installed on the limiting rod (42). The reinforcing plate (43) protrudes partially toward the lifting drum (3), and the second limiting distance (7) between the reinforcing plate (43) and the lifting cable (5) is less than the depth of the rope groove (31).

2. The lifting drum limiting device according to claim 1, characterized in that: The reinforcing plate (43) has a chamfered slope on the side facing the lifting drum (3).

3. The lifting drum limiting device according to claim 1, characterized in that: The reinforcing plate (43) and the limiting rod (42) are detachably connected.

4. The lifting drum limiting device according to claim 3, characterized in that: The reinforcing plate (43) is provided with several adjustment holes (44) perpendicular to the lifting drum (3); The limiting rod (42) has a mounting hole corresponding to the adjustment hole, and the reinforcing plate (43) is installed by bolts passing through the adjustment hole (44) and the mounting hole.

5. The lifting drum limiting device according to claim 1, characterized in that: Both ends of the lifting drum (3) are equipped with limiting rings (32) that protrude from the surface of the lifting drum (3), and the reinforcing plate (43) is set on the limiting rod (42) in the area of ​​the rope groove (31) between the two limiting rings (32); The first limiting distance (6) of the limiting rod (42) is greater than the height of the part of the limiting ring (32) that protrudes from the lifting drum (3).

6. A lifting drum limiting device according to any one of claims 1-5, characterized in that: The lifting drum (3) has a rope inlet hole (9) at one end away from the output shaft of the lifting motor (2). The rope inlet hole (9) is located at the beginning of the rope groove (31), and a fixing mechanism (8) for fixing the lifting steel cable (5) is installed inside the lifting drum (3).

7. A lifting drum limiting device according to claim 6, characterized in that: The fixing mechanism (8) includes a fixing plate (81) and a mounting plate (82). Both the mounting plate (82) and the fixing plate (81) are provided with threaded holes. The mounting plate (82) is installed on the fixing plate (81) by bolts passing through the threaded holes.

8. A lifting drum limiting device according to claim 7, characterized in that: The mounting plate (82) has two limiting grooves (83) that are adapted to the lifting steel cable (5) symmetrically opened along the threaded hole on the side near the fixed plate (81).

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