Positioning error compensation device for multi-layer winding crane of steel wire rope

Abstract

The invention relates to the technical field of steel wire rope winding error compensation, in particular to a steel wire rope multi-layer winding crane positioning error compensation device which comprises a lifting part and a lifting balance set. The lifting part comprises a lifting steel wire rope group; the lifting balance group is used for keeping the balance of a rope body included in the lifting part in the use process, and comprises a balance pulley and a balance arm; the lifting steel wire rope set comprises a main lifting mechanism and an auxiliary lifting mechanism. Based on the structural arrangement, the problems that the winding length of the steel wire rope is unbalanced, the steel wire rope is difficult to adjust and the rope body is twisted due to the manufacturing error of the winding drum and the extension and extension of the steel wire rope in the current ultrahigh-lift lifting process can be solved, and the stability, the balance and the safety in the lifting process are improved.

Description

Technical Field

[0001] The invention relates to the technical field of wire rope winding compensation, in particular to a positioning error compensation device for a wire rope multi-layer winding crane. Background Art

[0002] At present, in the crane industry, the lifting mechanism generally adopts the winding method of double drum, movable pulley hook group, fixed pulley and balance pulley. Figure 1 Demonstrates the common wire rope winding method.

[0003] This wire rope winding method may cause the sling to be skewed due to uneven length of the wire rope and the sling to be twisted due to the rotation of the wire rope during ultra-high lift lifting.

[0004] In order to solve this problem, a new wire rope winding method needs to be set up, which can adjust the imbalance of wire rope length and release wire rope torque, thereby improving the stability, balance and safety during the lifting process. Summary of the invention

[0005] In view of the problems in the above or prior art that the wire ropes are unbalanced in length, which leads to the deflection of the sling, and the twisting of the sling caused by the rotation of the wire ropes, the present invention is proposed.

[0006] Therefore, the object of the present invention is to provide a positioning error compensation device for a wire rope multi-layer winding crane.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising a lifting part and a lifting balance group;

[0008] The lifting part includes a lifting wire rope group;

[0009] The lifting balance group is used to maintain the balance of the rope body included in the lifting part during use, and includes a balance pulley and a balance arm;

[0010] The lifting wire rope group includes a main lifting mechanism and an auxiliary lifting mechanism.

[0011] As a preferred solution of the positioning error compensation device of the wire rope multi-layer winding crane of the present invention, the main lifting mechanism and the auxiliary lifting mechanism both include:

[0012] The double drum, the rope body and the transmission pulley form a steel wire rope group;

[0013] A hook is installed on the rope body.

[0014] As a preferred solution of the positioning error compensation device of the wire rope multi-layer winding crane of the present invention, wherein: the main lifting mechanism includes one rope body, the transmission pulleys are arranged in four groups of eight in total, three groups of the transmission pulleys are arranged in fixed pulleys, one group of the transmission pulleys is arranged in movable pulleys, and the hook is installed at the movable pulley;

[0015] The balancing pulley is arranged at the middle part of the rope body away from the double-linked drum.

[0016] As a preferred solution of the positioning error compensation device of the wire rope multi-layer winding crane of the present invention, wherein: the number of the rope bodies included in the auxiliary lifting mechanism is one, the transmission pulleys are arranged in five groups of ten, three groups of the transmission pulleys are arranged in fixed pulleys, two groups of the transmission pulleys are arranged in movable pulleys, and the hook is installed at the movable pulley;

[0017] The balance arm is arranged at the middle part of the rope body away from the double drum.

[0018] As a preferred solution of the positioning error compensation device of the wire rope multi-layer winding crane of the present invention, wherein: the double drum, the rope body, and the balance arm included in the auxiliary lifting mechanism are all set to two, the transmission pulley is set to corresponding ten groups of twenty, and two of the auxiliary lifting mechanisms are combined.

[0019] As a preferred solution of the positioning error compensation device of the wire rope multi-layer winding crane of the present invention, wherein: the double drum, the rope body, and the balance arm included in the auxiliary lifting mechanism are all set to two, the transmission pulley is set to corresponding ten groups of twenty, and two of the auxiliary lifting mechanisms are combined.

[0020] As a preferred solution of the positioning error compensation device of the wire rope multi-layer winding crane of the present invention, it further comprises a mobile platform, and the mobile platform is installed on the transmission pulley as a fixed pulley included in the main lifting mechanism and / or the auxiliary lifting mechanism;

[0021] The mobile platform is used to change the position of the transmission pulley compared to the double drum.

[0022] As a preferred solution of the positioning error compensation device of the wire rope multi-layer winding crane of the present invention, it also includes an anti-rotation sleeve, including:

[0023] Connectors, two in number;

[0024] The two connectors are rotatably connected via a sleeve;

[0025] The screw rod and the nut are threadedly assembled through the connector, and the rope body is wound around the outer wall of the screw rod.

[0026] As a preferred solution of the positioning error compensation device of the wire rope multi-layer winding crane of the present invention, wherein: the anti-rotation sleeve is installed on the rope body;

[0027] The anti-rotation sleeve is installed on the balancing pulley and the rope body on one side of the balancing arm.

[0028] As a preferred solution of the positioning error compensation device of the wire rope multi-layer winding crane of the present invention, it also includes an anti-rope breaking component arranged on the rope body.

[0029] The beneficial effects of the positioning error compensation device of the wire rope multi-layer winding crane of the present invention are as follows: the present invention is achieved through. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0031] Figure 1 It is a schematic diagram of the common wire rope winding method in the prior art.

[0032] Figure 2 The schematic diagram of the wire rope winding of the main hoisting mechanism included in the positioning error compensation device of the wire rope multi-layer winding crane is shown in FIG.

[0033] Figure 3 The diagram is a schematic diagram of the winding of the wire rope of the auxiliary hoisting mechanism included in the positioning error compensation device of the wire rope multi-layer winding crane.

[0034] Figure 4 This is a schematic diagram of the main lifting balance pulley and balance rope included in the positioning error compensation device of the wire rope multi-layer winding crane.

[0035] Figure 5 The diagram is a schematic diagram of the auxiliary lifting balance arm included in the positioning error compensation device of the wire rope multi-layer winding crane.

[0036] Figure 6 It is a side view schematic diagram of the working state of the positioning error compensation device of the wire rope multi-layer winding crane.

[0037] Figure 7 For the above Figure 6 Cross-sectional view of the AA portion.

[0038] Figure 8 This is a schematic diagram of the structure of the positioning error compensation device for a multi-layer winding crane with wire ropes.

[0039] Fig. 9It is a side view of the positioning error compensation device of the multi-layer winding crane of the wire rope. DETAILED DESCRIPTION

[0040] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0041] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0042] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0043] Please refer to Figures 1 to 9 , as an embodiment of the present invention, this embodiment provides a positioning error compensation device for a wire rope multi-layer winding crane, comprising a lifting part 100 and a lifting balance group 200;

[0044] The lifting part 100 is used to lift and suspend heavy objects, and includes a lifting wire rope group 101;

[0045] The lifting balance group 200 is used to keep the rope body 101c included in the lifting part 100 balanced during use, and includes a balance pulley 201 and a balance arm 202;

[0046] The hoisting wire rope group 101 includes a main hoisting mechanism and an auxiliary hoisting mechanism:

[0047] For the main lifting mechanism, please refer to Figure 2 , Figure 4 ,include:

[0048] The double drum 101e, the rope body 101c and the driving pulley 101d form a wire rope group for lifting and hoisting materials;

[0049] The hook 101f is installed on the rope body 101c and is used to cooperate with the wire rope group to complete the lifting of materials;

[0050] Among them, the number of rope bodies 101c is 1, and the transmission pulleys 101d are set to 4 groups, a total of 8, and the winding path of the wire rope group is:

[0051] The first group of transmission pulleys 101d is located on one side of the double drum 101e and is located on the same plane as the double drum 101e; the second group of transmission pulleys 101d is located in the middle of the double drum 101e and the first group of transmission pulleys 101d, and is located below the first group of transmission pulleys 101d; the third group of transmission pulleys 101d is located below the second group of transmission pulleys 101d; the fourth group of transmission pulleys 101d is located on the side of the second group of transmission pulleys 101d close to the corresponding double drum 101e;

[0052] Specifically, the first, second and fourth transmission pulleys 101d are fixed pulleys, the third transmission pulley 101d is a movable pulley, and the hook 101f is installed at the third transmission pulley 101d;

[0053] That is, one end of the rope body 101c is fixed to the outer wall of the double drum 101e - the movable end passes through one of the first group of transmission pulleys 101d, one of the second group of transmission pulleys 101d, one of the third group of transmission pulleys 101d, one of the fourth group of transmission pulleys 101d, two balancing pulleys 201, another of the fourth group of transmission pulleys 101d, another of the third group of transmission pulleys 101d, another of the second group of transmission pulleys 101d, and another of the first group of transmission pulleys 101d - and is fixed to the outer wall of the double drum 101e (located on the side of the other end of the rope body 101c wound on the double drum 101e);

[0054] In the above, the vertical displacement of the hook 101f connected to the main lifting mechanism is realized, and the second and fourth transmission pulleys 101d are installed on the mobile platform (slidingly installed on the frame and used as a trolley), and the positions of the second and fourth transmission pulleys 101d compared to the double drum 101e are changed to realize the lateral displacement of the hook 101f connected to the main lifting mechanism;

[0055] When in use, the double drum 101e rotates. Since the first, second and fourth transmission pulleys 101d are fixed and rotated, when the double drum 101e winds the rope body 101c, based on the above winding path, it can drive the two third transmission pulleys 101d to move vertically. Since the hook 101f is installed at the third transmission pulley 101d, the lifting and hoisting of the material is completed.

[0056] Realize the work of the main lifting mechanism;

[0057] For auxiliary lifting mechanism, please refer to Figure 3 , Figure 5 ,include:

[0058] The double drum 101e, the rope body 101c and the driving pulley 101d form a wire rope group for lifting and hoisting materials;

[0059] The hook 101f is installed on the rope body 101c and is used to cooperate with the wire rope group to complete the lifting of materials;

[0060] Among them, the number of rope bodies 101c is 1, and the transmission pulleys 101d are set to 5 groups with a total of 10. The winding path of the wire rope group is:

[0061] The first group of transmission pulleys 101d is located on one side of the double drum 101e and is located on the same plane as the double drum 101e; the second group of transmission pulleys 101d is located in the middle of the double drum 101e and the first group of transmission pulleys 101d, and is located below the first group of transmission pulleys 101d; the third group of transmission pulleys 101d is located below the second group of transmission pulleys 101d; the fourth group of transmission pulleys 101d is located on one side of the third group of transmission pulleys 101d, and the fifth group of transmission pulleys 101d is located on the side of the second group of transmission pulleys 101d close to the double drum 101e;

[0062] Specifically, the first, second and fifth transmission pulleys 101d are fixed pulleys, the third and fourth transmission pulleys 101d are movable pulleys, and the hook 101f is installed at the third and fourth transmission pulleys 101d;

[0063] That is, one end of the rope body 101c is fixed to the outer wall of the double drum 101e - the movable end passes through one of the first group of transmission pulleys 101d, one of the second group of transmission pulleys 101d, one of the third group of transmission pulleys 101d, one of the fourth group of transmission pulleys 101d, one of the fifth group of transmission pulleys 101d, the balance arm 202, another of the fifth group of transmission pulleys 101d, another of the fourth group of transmission pulleys 101d, another of the third group of transmission pulleys 101d, another of the second group of transmission pulleys 101d, another of the first group of transmission pulleys 101d - and is fixed to the outer wall of the double drum 101e (located on the side of the other end of the rope body 101c wound on the double drum 101e);

[0064] Different from the winding path of the main lifting mechanism, the auxiliary lifting mechanism includes two double drums 101e, rope bodies 101c, and balance arms 202, and the transmission pulleys 101d are 10 groups of 20 correspondingly, that is, the two winding paths overlap, and the rope body 101c of one auxiliary lifting mechanism is located outside the rope body 101c of the other auxiliary lifting mechanism;

[0065] In the above, the vertical displacement of the hook 101f connected to the auxiliary lifting mechanism is realized, and the second and fifth transmission pulleys 101d are installed on the mobile platform (slidingly installed on the frame and used as a trolley), and the positions of the second and fifth transmission pulleys 101d compared to the double drum 101e are changed to realize the lateral displacement of the hook 101f connected to the auxiliary lifting mechanism;

[0066] When in use, the two double drums 101e rotate, and since the first, second, and fourth transmission pulleys 101d are fixed and rotated, when the double drum 101e winds the rope body 101c, based on the above winding path, it can drive the third and fourth transmission pulleys 101d to move vertically, and since the hook 101f is installed at the third and fourth transmission pulleys 101d, the lifting and hoisting of the material is completed;

[0067] It also includes an anti-breaking rope assembly 101a arranged on the rope body 101c. The anti-breaking rope assembly 101a is based on the existing technology and is used to prevent the rope body 101c from breaking when the load is large and the wear is serious, thereby affecting production safety;

[0068] In actual use, please refer to Figure 2-Figure 7 , the staff assembled the main lifting mechanism and the auxiliary lifting mechanism onto the frame, and installed the appropriate power source, installed the balancing pulley 201 on the main lifting mechanism, and installed the balancing arm 202 on the auxiliary lifting mechanism. After the assembly is completed, the double drum 101e included in the main lifting mechanism and the two double drums 101e included in the auxiliary lifting mechanism are both located on the frame, the main lifting mechanism;

[0069] Compared with the prior art, the wire rope winding balance can be maintained in principle to avoid large errors in the implementation process, and any double drum 101e adopts the method of winding two wire ropes separately to avoid a single wire rope being too long, which makes it difficult to adjust in the ultra-high lift implementation method;

[0070] Moreover, the adjustment range of the balance pulley 201 and the balance arm 202 is larger than the manufacturing error of the drum rope groove;

[0071] Among them, the above-mentioned assembly operations are all based on existing technologies, and their fixing methods, racks, power sources, and controller models are not elaborated in detail.

[0072] Please refer to Figure 3 , Figure 4 , Figure 8 , Fig. 9 As another embodiment of the present invention, an anti-rotation sleeve 101b for a hoisting mechanism rope body 101c is provided, comprising:

[0073] Connector 101b-2 is configured as a "U"-shaped connector, and the number is two;

[0074] The two connectors 101b-2 are rotatably connected through the sleeve 101b-1;

[0075] The screw rod 101b-3 passes through the connector 101b-2;

[0076] The nut 101b-4 is adapted to the screw rod 101b-3 and is located on the outer wall of the screw rod 101b-3 and on both sides of the connector 101b-2;

[0077] When in use, the two ends of the disconnected rope body 101c are respectively connected to the two connectors 101b-2, and are clamped and fixed by the screw rod 101b-3 and the nut 101b-4, or are wound and fixed on the outer wall of the screw rod 101b-3. When the rope body 101c is twisted, since the two connectors 101b-2 are rotationally connected to the sleeve body 101b-1, the torsional stress of the rope body 101c can be released by rotation.

[0078] In combination with the above embodiment, the user assembles the anti-rotation sleeve 101b to both sides of the balancing pulley 201 and the balancing arm 202, and can adjust the number and installation position of the anti-rotation sleeve 101b according to practical needs. Any anti-rotation sleeve 101b is installed at the position where the rope body 101c is prone to twisting (such as the torsional stress of the hook 101f and the rope body 101c is not released). In conjunction with the balancing pulley 201 and the balancing arm 202, the imbalance caused by the torque generated by the twisting of the wire rope during the ultra-high lift lifting process can be avoided, the user's workload can be reduced (the user releases and adjusts the torque of the twisted wire rope), and it is easy to use.

[0079] Based on the above structural setting, it can solve the problems of uneven wire rope winding length, difficulty in adjustment and twisting of rope body 101c caused by drum manufacturing errors and wire rope extension and elongation during the current ultra-high lift lifting process, thereby improving the stability, balance and safety of the lifting process.

[0080] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0081] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0082] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0083] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A positioning error compensation device for a multi-layer wire rope winding crane, characterized in that: It comprises a lifting part (100) and a lifting balance group (200); The lifting part (100) comprises a lifting wire rope group (101); The lifting balance group (200) is used to maintain the balance of the rope body (101c) included in the lifting part (100) during use, and comprises a balance pulley (201) and a balance arm (202); The lifting wire rope group (101) comprises a main lifting mechanism and an auxiliary lifting mechanism.

2. The positioning error compensation device for a wire rope multi-layer winding crane according to claim 1, characterized in that: The main lifting mechanism and the auxiliary lifting mechanism both include: The double drum (101e), the rope body (101c) and the transmission pulley (101d) form a steel wire rope group; The hook (101f) is installed on the rope body (101c).

3. The positioning error compensation device for a multi-layer wire rope winding crane according to claim 2, characterized in that: The main lifting mechanism comprises one rope body (101c), the transmission pulleys (101d) are arranged in four groups of eight in total, three groups of the transmission pulleys (101d) are arranged as fixed pulleys, one group of the transmission pulleys (101d) is arranged as a movable pulley, and the hook (101f) is installed at the movable pulley; The balancing pulley (201) is arranged at the middle part of the rope body (101c) away from the double winding drum (101e).

4. The positioning error compensation device for a multi-layer wire rope winding crane according to claim 2, characterized in that: The auxiliary lifting mechanism comprises one rope body (101c), the transmission pulleys (101d) are arranged in five groups of ten, three groups of the transmission pulleys (101d) are arranged as fixed pulleys, two groups of the transmission pulleys (101d) are arranged as movable pulleys, and the hook (101f) is installed at the movable pulley; The balancing arm (202) is arranged at the middle portion of the rope body (101c) away from the double-linked drum (101e).

5. The positioning error compensation device for a multi-layer wire rope winding crane according to claim 4, characterized in that: The auxiliary lifting mechanism is provided in two, and the double drum (101e), the rope body (101c), and the balance arm (202) included therein are each provided in two, and the transmission pulley (101d) is provided in ten groups of twenty corresponding ones.

6. The positioning error compensation device for a multi-layer wire rope winding crane according to claim 5, characterized in that: The rope body (101c), the transmission pulley (101d), and the balance arm (202) included in one of the auxiliary lifting mechanisms are located outside the rope body (101c), the transmission pulley (101d), and the balance arm (202) included in the other auxiliary lifting mechanism.

7. The positioning error compensation device for a multi-layer wire rope winding crane according to claim 3 or 4, characterized in that: It also includes a mobile platform, which is installed on a transmission pulley (101d) serving as a fixed pulley included in the main lifting mechanism and / or the auxiliary lifting mechanism; The mobile platform is used to change the position of the transmission pulley (101d) compared to the double drum (101e).

8. The positioning error compensation device for a multi-layer wire rope winding crane according to claim 1, characterized in that: Also included is an anti-rotation sleeve (101b), comprising: Connectors (101b-2), two in number; The two connectors (101b-2) are rotatably connected via the sleeve (101b-1); The screw rod (101b-3) and the nut (101b-4) are threadedly assembled through the connector (101b-2), and the rope body (101c) is wound around the outer wall of the screw rod (101b-3).

9. The positioning error compensation device for a multi-layer wire rope winding crane according to claim 8, characterized in that: The anti-rotation sleeve (101b) is installed on the rope body (101c); The anti-rotation sleeve (101b) is installed on the rope body (101c) on one side of the balancing pulley (201) and the balancing arm (202).

10. The positioning error compensation device for a multi-layer wire rope winding crane according to claim 8, characterized in that: It also includes an anti-rope-breaking component (101a) arranged on the rope body (101c).

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