Height limiting heavy hammer for crane

Abstract

The utility model discloses a crane height limiting counter weight, which relates to the technical field of crane operation and comprises a first semicircular counter weight body, a second semicircular counter weight body and a locking piece, and a first flexible wear-resistant layer is arranged on the inner side of the first semicircular counter weight body; a second flexible wear-resistant layer is arranged on the inner side of the second semicircular heavy hammer body; the locking piece is used for being connected with a hanging steel wire rope. The two ends of the second semicircular heavy hammer body are detachably and fixedly connected with the two ends of the first semicircular heavy hammer body through the locking pieces correspondingly, the passing cavity can be formed, the steel wire rope can penetrate through the passing cavity, the structure is simple, use is convenient, and stable and efficient operation of the crane is effectively guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a crane operation technical field, in particular to a crane height limiting weight. BACKGROUND

[0002] The height limiting device is very important for ensuring the operation safety and normal operation. The traditional crane height limiting weight is a hollow steel structure, and its design has significant defects. Because of the single structure and no inner lining, the steel wire rope will frequently rub against the weight in daily use with the swing of the steel wire rope. The continuous friction can easily cause the steel wire rope to break, and the broken wire will further scratch the weight, which eventually causes the weight to hang the steel wire rope loose, and further triggers the height limiting device to act, so that the control power supply is protective disconnected, which seriously affects the operation efficiency of the crane.

[0003] In addition, the improved type of the limiting device mentioned in the article "Improvement of the Weight Type Height Limiter" by Wang Bin and Wen Hao still has many problems although it has certain innovation. The weight of the limiting device is transformed into a ring shape, the structure is light but the volume is large, the steel wire rope is used for hoisting and the distance between the lifting lug and the center is close, and the non-vertical hoisting mode makes the steel wire rope for hoisting the weight easily entangled with the crane steel wire rope, which causes false alarm of the height limiting device. Moreover, due to the large volume, the replacement process is complex once damaged, and it is difficult to recover in time, which has an adverse effect on the stable operation of the crane on site. Therefore, the existing height limiting weight has defects in actual application, and a more reliable and stable design scheme is urgently needed. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a crane height limiting weight to solve the problems in the prior art, which has simple structure, is convenient to use, and effectively ensures the stable and efficient operation of the crane.

[0005] To achieve the above-mentioned purpose, the utility model provides the following scheme:

[0006] The utility model provides a crane height limiting weight, which comprises a first semicircular weight body, a second semicircular weight body and a locking piece, the inner side of the first semicircular weight body is provided with a first flexible wear-resistant layer, the inner side of the second semicircular weight body is provided with a second flexible wear-resistant layer, the locking piece is used for being connected with a hoisting steel wire rope, the two ends of the second semicircular weight body are respectively fixedly connected with the two ends of the first semicircular weight body through the locking piece and can be detachably connected and can form a through cavity, and the through cavity is used for allowing the steel wire rope to pass through.

[0007] Preferably, the first semicircle weight body comprises a first semicylinder, a first semiring and two first connecting plates, the first semiring is fixedly connected to the bottom of the first semicylinder, the two first connecting plates are fixedly connected to the two ends of the first semicylinder respectively, and the first flexible wear-resistant layer is detachably fixedly connected to the inner side of the first semicylinder.

[0008] Preferably, the second semicircle weight body comprises a second semicylinder, a second semiring and two second connecting plates, the second semiring is fixedly connected to the bottom of the second semicylinder, the two second connecting plates are fixedly connected to the two ends of the second semicylinder respectively, and the second flexible wear-resistant layer is detachably fixedly connected to the inner side of the second semicylinder.

[0009] Preferably, the locking member comprises a plurality of locking bolts and a plurality of locking nuts, the first connecting plate is provided with a plurality of first through holes, the second connecting plate is provided with a plurality of second through holes, one locking bolt is used for being screwed with one locking nut after penetrating through one first through hole and one second through hole, and the connecting bolt is used for being connected with the hanging steel wire rope.

[0010] Preferably, the first semicircle weight body and the second semicircle weight body are both made of steel.

[0011] Preferably, the first flexible wear-resistant layer and the second flexible wear-resistant layer are both made of nylon.

[0012] The crane height limiting weight provided by the utility model has the following technical effects compared with the prior art:

[0013] The utility model provides a crane height limiting weight, through setting first semicircle weight body and second semicircle weight body of detachable fixed connection, and setting flexible wear-resistant layer inside, not only convenient for replacing and maintaining the worn part, but also can form through cavity for steel wire rope to pass through, reduces direct friction of steel wire rope and weight, protects steel wire rope, improves service life. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment, and obviously, the drawing in the following description is only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0015] Figure 1 The utility model provides the structure schematic diagram of crane height limiting weight;

[0016] Figure 2 The utility model provides the structure schematic diagram of crane height limiting weight; Figure 1Sectional view at point AA;

[0017] In the figure: 1. First semi-circular hammer body; 2. Second semi-circular hammer body; 3. First flexible wear-resistant layer; 4. Second flexible wear-resistant layer; 5. First half-cylinder; 6. First half-ring; 7. First connecting plate; 8. First through hole; 9. Through cavity; 10. Locking component. Detailed Implementation

[0018] 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 protection scope of the present utility model.

[0019] The purpose of this utility model is to provide a crane height limiting counterweight to solve the problems existing in the prior art. It has a simple structure, is easy to use, and effectively ensures the stable and efficient operation of the crane.

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] This utility model provides a crane height limiting counterweight, such as... Figures 1-2 As shown, it includes: a first semi-circular hammer body 1, a second semi-circular hammer body 2, and a locking member 10. The inner side of the first semi-circular hammer body 1 is provided with a first flexible wear-resistant layer 3; the inner side of the second semi-circular hammer body 2 is provided with a second flexible wear-resistant layer 4; the locking member 10 is used to connect with the suspended steel wire rope; the two ends of the second semi-circular hammer body 2 are respectively detachably fixedly connected to the two ends of the first semi-circular hammer body 1 through the locking member 10, and can form a passage cavity 9. The passage cavity 9 is used for the steel wire rope to pass through. By setting the first semi-circular hammer body 1 and the second semi-circular hammer body 2 to be detachably fixedly connected, and providing a flexible wear-resistant layer inside, it is not only convenient to replace and maintain the worn parts, but also to form a passage cavity 9 for the steel wire rope to pass through, reducing the direct friction between the steel wire rope and the hammer, protecting the steel wire rope, and improving its service life.

[0022] In a preferred embodiment, the first semicircular weight body 1 comprises a first semicircular barrel 5, a first semicircular ring 6 fixedly connected to the bottom of the first semicircular barrel 5, and two first connecting plates 7 fixedly connected to the two ends of the first semicircular barrel 5, and the first flexible wear-resistant layer 3 is detachably fixedly connected to the inner side of the first semicircular barrel 5, which clearly defines the specific components of the first semicircular weight body 1, the first semicircular ring 6 can enhance the stability of the bottom, the first connecting plates 7 facilitate connection with the second semicircular weight body 2, and the first flexible wear-resistant layer 3 can be fixed to the inner side for separate replacement after wear, thereby reducing maintenance costs and improving the overall performance of the weight.

[0023] In a preferred embodiment, the second semicircular weight body 2 comprises a second semicircular barrel, a second semicircular ring fixedly connected to the bottom of the second semicircular barrel, and two second connecting plates fixedly connected to the two ends of the second semicircular barrel, and the second flexible wear-resistant layer 4 is detachably fixedly connected to the inner side of the second semicircular barrel, which corresponds to the structural design of the first semicircular weight body 1 and clearly defines the specific components of the second semicircular weight body 2. The second semicircular ring also enhances the stability of the bottom, the second connecting plates facilitate connection with the first semicircular weight body 1, and the second flexible wear-resistant layer 4 can be fixed to the inside for separate replacement, thereby further improving the maintainability and durability of the weight.

[0024] In a preferred embodiment, the locking member 10 comprises a plurality of locking bolts and a plurality of locking nuts, the first connecting plates 7 are provided with a plurality of first through holes 8, the second connecting plates are provided with a plurality of second through holes, one locking bolt is used to pass through one first through hole 8 and one second through hole and is threadedly connected with one locking nut, and the connecting bolt is used to connect with the hanging steel wire rope, so that the connection between the first semicircular weight body 1 and the second semicircular weight body 2 is stable and reliable, and through the simple bolt and nut combination, the disassembly and installation operations are facilitated, and the connecting bolt is used to connect with the hanging steel wire rope, which clearly defines the connection method of the weight and the hanging steel wire rope and ensures that the weight can normally play a limiting role.

[0025] In a preferred embodiment, the first semicircular weight body 1 and the second semicircular weight body 2 are both of steel structure, which has high strength and rigidity and can withstand various forces during the operation of the crane, thereby ensuring the stability of the overall structure of the weight and being not prone to deformation, effectively maintaining the limiting function of the weight and having high reliability.

[0026] In a preferred embodiment, the first flexible wear-resistant layer 3 and the second flexible wear-resistant layer 4 are both made of nylon, which has good wear resistance and flexibility, and as a flexible wear-resistant layer, can better adapt to the running state of the steel wire rope, further reduce the friction force suffered by the steel wire rope when passing through the heavy hammer, reduce the damage of the steel wire rope caused by friction, prolong the service life of the steel wire rope, and also relatively easily replace after wear, thereby reducing the maintenance cost.

[0027] The principle and implementation mode of the specific examples applied in the utility model are described, and the above embodiment is only used for helping to understand the method and core idea of the utility model; meanwhile, for the general technical personnel in the field, the specific implementation mode and application range will be changed according to the idea of the utility model. In conclusion, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. A crane height limiting weight, characterized by: The utility model relates to a kind of steel wire rope hanger, including: First semicircle weight body, the inner side of the first semicircle weight body is provided with first flexible wear-resistant layer; Second semicircle weight body, the inner side of the second semicircle weight body is provided with second flexible wear-resistant layer;And Locking part, the locking part is used to be connected with hanging steel wire rope;The two ends of the second semicircle weight body are respectively with the two ends of the first semicircle weight body by the locking part can be detachably fixed connection and can form through cavity, the through cavity is used to make steel wire rope pass through.

2. Crane height limiting weight according to claim 1, characterized in that: The first semicircle weight body includes first half cylinder, first half ring and two first connecting plates, the first half ring is fixedly connected to the bottom of the first half cylinder, two the first connecting plate is fixedly connected to the two ends of the first half cylinder, the first flexible wear-resistant layer can be detachably fixed connection on the inner side of the first half cylinder.

3. Crane height limiting weight according to claim 2, characterized in that: The second semicircle weight body includes second half cylinder, second half ring and two second connecting plates, the second half ring is fixedly connected to the bottom of the second half cylinder, two the second connecting plate is fixedly connected to the two ends of the second half cylinder, the second flexible wear-resistant layer can be detachably fixed connection on the inner side of the second half cylinder.

4. Crane height limiting weight according to claim 3, characterized in that: The locking part includes a plurality of locking bolts and a plurality of locking nuts, the first connecting plate is provided with a plurality of first through holes, the second connecting plate is provided with a plurality of second through holes, one the locking bolt is used to pass through one the first through hole and one the second through hole after with one the locking nut is threadedly connected, the connecting bolt is used to be connected with the hanging steel wire rope.

5. Crane height limiting weight according to claim 4, characterized in that: The first semicircle weight body and the second semicircle weight body are both steel structure.

6. Crane height limiting weight according to claim 5, characterized in that: The first flexible wear-resistant layer and the second flexible wear-resistant layer are both made of nylon.

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