A power cable protection device for large-scale straddle carriers
By installing power cable protection devices with protective tow chains and chain rails on large cross-span vehicles, the problem of cables being vulnerable to damage and excessive bending in the factory is solved, effective protection of power cables is achieved, and the risk of leakage accidents is reduced.
Patent Information
- Application Number
- CN202411798002.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-04-08
AI Technical Summary
Large cross-span power cables are susceptible to trampling and wear in the factory, and due to the stiffness characteristics, the cable is difficult to bend, which easily leads to fatigue and breakage of the wire core, increasing the risk of leakage accidents.
A power cable protection device is designed, using a protective tow chain as a restraining protective structure, providing horizontal constraints through the chain rail, and limiting the bending angle and rotation radius of the power cable through the multi-stage protective joints and welding fixing structure of the protective tow chain.
Effectively prevent external friction damage and excessive internal bending of power cables, reduce the risk of leakage accidents, and improve the construction safety of large cross-span vehicles and staff.
Smart Images
Figure CN119787217A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of cable movement protection, in particular to a power cable protection device for a large-scale straddle carrier. Background Art
[0002] Currently, in the steel and metallurgical industry, large-scale cross-over vehicles are powered by cables to transport core rods in groups to subsequent sawing and rolling equipment. However, due to the complex environment inside the factory, large-scale cross-over vehicles have a large footprint, longitudinal span and lateral displacement. The exposed cables are often faced with problems such as trampling and ground wear. In addition, due to the rigidity of the cable itself, the cable cannot be bent too much. Excessive or frequent bending will cause fatigue fracture of the cable core, which is very likely to cause leakage accidents, affecting the construction safety of large cross-over vehicles and workers.
[0003] Therefore, how to design a power cable protection device for a large-scale over-span vehicle to effectively protect the power cable of the large-scale over-span vehicle while ensuring its cable power supply function has become a technical problem that needs to be urgently solved by personnel in this field. Summary of the invention
[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present invention is to provide a power cable protection device for a large-scale over-the-span vehicle, which uses a protective drag chain as a restraining protection structure for the power cable, effectively solving the problem of external friction damage to the power cable and the minimum bending angle control of the cable.
[0005] In order to solve the above problems, the present invention provides a power cable protection device for a large-scale straddle carrier, the protection device comprising a protection drag chain and a chain rail, wherein the chain rail is fixedly arranged in parallel between the ground rails of the large-scale straddle carrier, and the protection drag chain is horizontally limited and vertically movably embedded in the chain rail; one end of the protection drag chain is fixedly connected to one end of the chain rail, and the other end of the protection drag chain is fixedly connected to the connection terminal of the large-scale straddle carrier, and the interior of the protection drag chain is movably overlapped with the power cable of the large-scale straddle carrier.
[0006] Preferably, the protective drag chain is a hollow crawler-shaped structure with multiple levels of protective sections hingedly spliced at the ends, one end of each level of protective section is set as a double-layer plate, and the other end is set as a single-layer plate hingedly connected to the double-layer plate pin, and each level of double-layer plate is hingedly connected to the single-layer plate pin of the next level of protective section.
[0007] Preferably, guardrails are fixedly provided on the top and bottom of the double-layer plate, and power cables are arranged in the hollow area in the middle of the protective drag chain enclosed by the guardrails.
[0008] Preferably, the 2-3 level protection section of the protection drag chain connecting one end of the large straddle carrier is a welded fixed structure of a double-layer plate and a single-layer plate to avoid frequent bending of the electrical connection joint between the power cable and the large straddle carrier.
[0009] Preferably, one end of the power cable is connected to a power source, the middle section of the power cable is movably inserted in the middle hollow area of the protective drag chain, and the other end of the power cable is electrically connected to an electrical input terminal of the large straddle carrier.
[0010] The advantages of the present invention compared with the prior art are:
[0011] A power cable protection device for a large-scale straddle carrier of the present invention provides horizontal constraints for a protection drag chain through a chain rail, provides external sheathing protection and minimum rotation radius limitation for the power cable through the protection drag chain, and is finally welded and fixed to the multiple protection sections of the protection drag chain at the connection end of the large-scale straddle carrier to avoid fatigue damage caused by frequent movement of the power cable and the electrical connection end of the large-scale straddle carrier. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0013] Figure 1 is a top view of the present invention (right-hand posture);
[0014] Figure 2 is a top view of the present invention (left-hand posture);
[0015] Figure 3 It is a partial top view of the protective drag chain of the present invention;
[0016] Figure 4 It is a side view of the connection position between the protective drag chain and the large straddle carrier in the present invention.
[0017] In the figure: 1-chain rail; 2-ground rail; 3-protective drag chain; 4-power cable; 5-large cross-car;
[0018] 301-single-layer board; 302-double-layer board; 303-protection rod; 304-pin shaft; 305-welding fixing position. DETAILED DESCRIPTION
[0019] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.
[0020] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0021] The present invention is further described in detail below in conjunction with the accompanying drawings.
[0022] Combination Figure 1 to Figure 4 The present invention provides a power cable protection device for a large-scale straddle vehicle, the protection device comprising a protection drag chain 3 and a chain rail 1, wherein the chain rail is fixedly arranged in parallel between the ground rails 2 of the large-scale straddle vehicle 5, and the protection drag chain is horizontally limited and vertically movably embedded in the chain rail; one end of the protection drag chain is fixedly connected to one end of the chain rail, and the other end of the protection drag chain is fixedly connected to the wiring terminal of the large-scale straddle vehicle, and the inside of the protection drag chain is movably overlapped with the power cable 4 of the large-scale straddle vehicle.
[0023] Preferably, the protective drag chain is a hollow crawler-shaped structure with multiple levels of protective sections hingedly spliced at the ends, one end of each level of protective section is set as a double-layer plate 302, and the other end is set as a single-layer plate 301 hingedly connected to the double-layer plate pin 304, and each level of double-layer plate is hingedly connected to the single-layer plate pin of the next level of protective section.
[0024] Preferably, guard bars 303 are fixedly provided on the top and bottom of the double-layer plate, and power cables are arranged in the hollow area in the middle of the protective drag chain enclosed by the guard bars.
[0025] Preferably, the 2-3 level protection section of the protection drag chain connecting one end of the large straddle carrier is a welded fixed structure of a double-layer plate and a single-layer plate to avoid frequent bending of the electrical connection joint between the power cable and the large straddle carrier.
[0026] Preferably, one end of the power cable is connected to a power source, the middle section of the power cable is movably inserted in the middle hollow area of the protective drag chain, and the other end of the power cable is electrically connected to an electrical input terminal of the large straddle carrier.
[0027] In order to more clearly illustrate the specific implementation of the present invention, an embodiment is provided below:
[0028] The internal welding fixation of the protection drag chain of the present invention and the welding fixation position 305 of the protection drag chain and the large-scale cross-over workshop are as follows Figure 4As shown, the effects of this welding fixed connection method are: 1. The drag force transmitted to the power cable when the large-scale over-span vehicle moves in the prior art is transferred to the protective drag chain to avoid cable damage; 2. The protective drag chain at the connection end with the large-scale over-span vehicle is prevented from flipping and moving, so as to protect the electrical connection position between the power cable and the large-scale over-span vehicle.
[0029] It should be noted that one end of the protective drag chain is fixed in the chain track, and the cable of the power supply end is passed into the protective drag chain at this end; when the large-scale cross-span vehicle moves, the protective drag chain and the middle section of the power cable are bent together, and the other end of the protective drag chain and the power end of the power cable are connected to the large-scale cross-span vehicle, and the minimum bending radius of the power cable is determined by the cable stiffness, the minimum bending radius of the protective drag chain, and the connection height of the protective drag chain on the large-scale cross-span vehicle. What can be guaranteed is that the bending angle of the middle section of the power cable is the same each time.
[0030] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.
Claims
1. A power cable protection device for a large-scale straddle carrier, characterized in that: The protective device includes a protective drag chain and a chain rail, wherein the chain rail is fixedly arranged in parallel between the ground rails of the large-scale straddle vehicle, and the protective drag chain is horizontally limited and vertically movably embedded in the chain rail; one end of the protective drag chain is fixedly connected to one end of the chain rail, and the other end of the protective drag chain is fixedly connected to the connection terminal of the large-scale straddle vehicle, and the inside of the protective drag chain is movably overlapped with the power cable of the large-scale straddle vehicle.
2. The power cable protection device for a large-scale straddle carrier according to claim 1 is characterized in that: The protective drag chain is a hollow crawler-shaped structure with multiple levels of protective sections hinged at the ends, one end of each level of protective section is set as a double-layer plate, and the other end is set as a single-layer plate hingedly connected to the double-layer plate pin shaft, and each level of double-layer plate is hingedly connected to the single-layer plate pin shaft of the next level of protective section.
3. The power cable protection device for a large-scale straddle carrier according to claim 2 is characterized in that: The top and bottom of the double-layer plate are both fixedly provided with guarding rods, and power cables are arranged in the hollow area in the middle of the protective drag chain enclosed by the guarding rods.
4. The power cable protection device for a large-scale straddle carrier according to claim 2 is characterized in that: The 2-3 level protection section of the protection drag chain connected to one end of the large straddle carrier is a welded fixed structure of a double-layer plate and a single-layer plate to avoid frequent bending of the electrical connection joint between the power cable and the large straddle carrier.
5. The power cable protection device for a large-scale straddle carrier according to claim 3 is characterized in that: One end of the power cable is connected to a power source, the middle section of the power cable is movably plugged into the middle hollow area of the protective drag chain, and the other end of the power cable is electrically connected to an electrical input end of the large straddle carrier.