Novel pulley for overhead crane trolley cable

Abstract

The utility model belongs to the technical field of crown block cable carrying devices, and relates to a novel pulley for a crown block trolley cable, which comprises a track, pulley frames are arranged on two sides of the track, pulley wheels are arranged on the inner sides of the tops of the pulley frames, axle bolts are led out of the pulley wheels to penetrate through the pulley frames, and the axle bolts are fixed through axle nuts. A bracket is arranged on the inner side of the bottom of the pulley frame and connected with the pulley frame through connecting bolts, an upper supporting plate is arranged at the bottom of the bracket, a lower supporting plate is arranged at the bottom of the upper supporting plate, the upper supporting plate and the lower supporting plate are fixed through fastening bolts, and a cable is placed on the top of the lower supporting plate. The pulley wheels move along the track to drive the cable to be stably conveyed, the high stability of the pulley in the moving process is ensured through the special layout design of the pulley wheels, and the derailing phenomenon is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of overhead crane cable carrying devices, and in particular relates to a new type of pulley used for overhead crane trolley cables. Background Art

[0002] In an overhead crane system, a cable trolley usually consists of a pulley, a bracket, and a fixing device. Its main function is to provide reasonable guidance and support for the cable when the trolley moves, ensuring that the cable will not be overstretched or worn.

[0003] With the advancement of industrial automation, higher requirements are being placed on cable management and transportation. Traditional cable management methods can no longer meet the efficiency and safety requirements of modern production. Especially in overhead crane and trolley systems, cable management and maintenance have become one of the key factors in improving production efficiency.

[0004] Commonly used cable pulleys suffer from poor stability, easy derailment, and inconvenient cable fixing. These issues not only affect operational efficiency but can also lead to safety incidents and economic losses due to equipment failure. Therefore, a new pulley for the overhead crane trolley cable was proposed to improve the stability and safety of the overhead crane system. Utility Model Content

[0005] The purpose of the utility model is to provide a new type of pulley for the overhead crane trolley cable, which solves the problems of poor stability, easy derailment and inconvenient cable fixing in the prior art, and achieves high efficiency, high stability and high safety of cable management.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: the present invention provides a new type of pulley for the overhead crane trolley cable, including a track, pulley frames are provided on both sides of the track, a pulley wheel is provided on the inner side of the top of the pulley frame, a wheel axle bolt is led out from the pulley wheel and passes through the pulley frame, the wheel axle bolt is fixed by an axle nut, a bracket is provided on the inner side of the bottom of the pulley frame, the bracket is connected to the pulley frame by connecting bolts, an upper support plate is provided at the bottom of the bracket, a lower support plate is provided at the bottom of the upper support plate, the upper support plate and the lower support plate are fixed by fastening bolts, and the cable is placed on the top of the lower support plate.

[0007] Preferably, the cross section of the track is I-shaped.

[0008] Preferably, there are 6 pulleys in total, 3 of which are arranged on both sides of the track in a herringbone shape: 2 pulleys are horizontally arranged on the bottom wall of the track, and 1 pulley is arranged between the 2 pulleys and supports the top wall of the track.

[0009] Preferably, the pulley frame is in a convex shape.

[0010] Preferably, the bracket is a hollow cuboid that penetrates from top to bottom, and the bottom of the bracket is welded to the upper support plate.

[0011] Preferably, the upper supporting plate is in a 7-shape, and there are two upper supporting plates arranged on both sides of the bracket.

[0012] Compared with the prior art, the advantages and positive effects of the present invention are:

[0013] 1. The utility model moves along the track through the pulley to drive the cable for smooth transmission. The special layout design of the pulley ensures the high stability of the pulley during movement and prevents derailment.

[0014] 2. This utility model has the comprehensive advantages of improving production efficiency, reducing operating costs and enhancing operational safety. It can significantly improve the efficiency and safety of cable management, reduce the additional costs caused by cable damage and maintenance, and is simple and quick to operate, which helps to shorten operation time and reduce labor intensity.

[0015] 3. The utility model solves the problems of poor stability, easy derailment and inconvenient cable fixing in the prior art, and achieves high efficiency, high stability and high safety of cable management. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0017] Figure 1 This is a front view of a new type of pulley used for overhead crane trolley cables;

[0018] Figure 2 This is a three-dimensional structural diagram of a new type of pulley used for overhead crane trolley cables;

[0019] In the above figures, 1. track, 2. pulley frame, 3. pulley, 4. axle bolt, 5. axle nut, 6. bracket, 7. connecting bolt, 8. upper support plate, 9. lower support plate, 10. fastening bolt, 11. cable. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1, as Figure 1-2 As shown, a new type of pulley for an overhead crane trolley cable includes a track 1, which is the load-bearing structure of the entire pulley system, providing a travel path and supporting the movement of the pulley. Pull frames 2 are located on both sides of the track 1. Pull frames 2 are the foundation structure responsible for carrying and supporting the weight of other components and transmitting force. Sheaves 3 are located on the inner side of the top of pulley frames 2. Sheaves 3 roll on track 1, driving pulley frames 2 to move.

[0023] The axle bolt 4 is led out from the pulley 3 and passes through the pulley frame 2. The axle bolt 4 is used to connect the pulley 3 and the pulley frame 2 to keep the pulley 3 fixed and stable. The axle bolt 4 is fixed by the axle nut 5. The axle nut 5 cooperates with the axle bolt 4 to fix the pulley 3 on the pulley frame 2.

[0024] A bracket 6 is provided on the inner side of the bottom of the pulley frame 2. The bracket 6 plays a connecting role. The bracket 6 is connected to the pulley frame 2 by connecting bolts 7, connecting the pulley frames 2 on both sides of the track 1 into a whole. The connecting bolts 7 connect the bracket 6 and the pulley frame 2 together, ensuring the stability of the entire structure, facilitating installation and disassembly, providing strong connection strength, and facilitating quick maintenance and replacement.

[0025] An upper support plate 8 is provided at the bottom of the bracket 6, and a lower support plate 9 is provided at the bottom of the upper support plate 8. The upper support plate 8 and the lower support plate 9 are fixed together by fastening bolts 10. A cable 11 is placed on the top of the lower support plate 9. Cable 11 is the power cord of the overhead traveling vehicle trolley. The upper support plate 8 and the lower support plate 9 are used in conjunction with each other to form a clamping structure for the cable 11. The upper support plate 8 and the lower support plate 9 are connected as a whole by fastening bolts 10, which can firmly clamp the cable 11, prevent the cable 11 from sliding freely, and reduce the risk of cable 11 wear. The fastening bolts 10 are used to fix the upper support plate 8 and the lower support plate 9, providing a strong connection. The spacing between the upper support plate 8 and the lower support plate 9 can be adjusted according to the different sizes of the cables 11, facilitating quick disassembly and replacement.

[0026] The following is a detailed description of the design of the above key components:

[0027] The cross section of the track 1 is in the shape of an I. The I-shaped design provides the track 1 with good strength and deformation resistance, and can withstand a large load. At the same time, two grooves are formed to facilitate the installation of pulleys 3 on both sides of the track 1.

[0028] There are six pulleys 3, three on each side of the track 1, arranged in a herringbone pattern: two pulleys 3 are horizontally arranged on the bottom wall of the track 1, and one pulley 3 is located between the two pulleys 3 and supports the top wall of the track 1. The herringbone pattern of the pulleys 3 can evenly distribute the load, provide greater stability, and effectively prevent the entire pulley 3 from derailing and falling due to skew.

[0029] The pulley frame 2 is in a convex shape. The convex structure facilitates the connection of the pulley wheel 3 in a herringbone shape on the pulley frame 2.

[0030] The bracket 6 is a hollow cuboid that is passed through from top to bottom, and the bottom of the bracket 6 is welded to the upper support plate 8. The bracket 6 has good strength and rigidity, and the welding connection ensures the stability of the structure and avoids deformation and fracture.

[0031] The upper support plate 8 is in the shape of a 7. The 7-shaped design can improve the placement stability of the cable 11. After being connected with the lower support plate 9, a certain space is left for preventing the cable 11. There are two upper support plates 8 arranged on both sides of the bracket 6. The two upper support plates 8 and the two ends of the long strip lower support plate 9 are respectively connected by fastening bolts 10, which is convenient for placing the cable 11.

[0032] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology. It will not be described in detail here. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field.

[0033] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A new type of pulley for overhead crane trolley cable, characterized in that: It includes a track, pulley frames are provided on both sides of the track, a pulley is provided on the inner side of the top of the pulley frame, an axle bolt is led out from the pulley and passes through the pulley frame, the axle bolt is fixed by an axle nut, a bracket is provided on the inner side of the bottom of the pulley frame, the bracket is connected to the pulley frame by a connecting bolt, an upper support plate is provided at the bottom of the bracket, a lower support plate is provided at the bottom of the upper support plate, the upper support plate and the lower support plate are fixed by fastening bolts, and a cable is placed on the top of the lower support plate.

2. A new type of pulley for a crown block trolley cable according to claim 1, characterized in that: The cross section of the track is in an I-shape.

3. A new type of pulley for a crown block trolley cable according to claim 2, characterized in that: There are 6 pulleys in total, 3 of which are arranged on both sides of the track in a herringbone shape: 2 pulleys are horizontally arranged on the bottom wall of the track, and 1 pulley is arranged between the 2 pulleys and supports the top wall of the track.

4. A new type of pulley for a crown block trolley cable according to claim 3, characterized in that: The pulley frame is in a convex shape.

5. The new type of pulley for the overhead traveling vehicle trolley cable according to claim 1, characterized in that: The bracket is a hollow cuboid that penetrates from top to bottom, and the bottom of the bracket is welded to the upper supporting plate.

6. A new type of pulley for a crown block trolley cable according to claim 5, characterized in that: The upper supporting plate is in the shape of a figure 7, and there are two upper supporting plates arranged on both sides of the bracket.

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