Cable assembly and working machine
By designing a support frame and force transmission connection components for the cable assembly, the movement of the front section of the cable is restricted, and relative movement between the rear section of the cable and the support frame is avoided. This solves the problem of easy damage to high-voltage cables in open-pit mining operations, and improves the service life of the cable and the safety of the operating machinery.
Patent Information
- Application Number
- CN202423176504.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-23
AI Technical Summary
High-voltage cables are susceptible to mechanical damage such as wear and tear during open-pit mining operations, which can affect their service life, potentially leading to cable failure or even safety accidents.
Design a cable assembly including a support frame, a force transmission connection assembly, and a force guiding connector. By fixing the front section of the cable and restricting its movement, the relative movement of the rear section of the cable and the support frame is prevented. An arc-shaped fixing sleeve and a detachable half-pipe sleeve are used, combined with a suspension wire rope and a cable fixing clamp, to achieve a non-taut fixing of the cable.
It significantly improves cable lifespan and reliability, reduces cable wear risk, enhances the safety and reliability of operating machinery, and reduces the likelihood of electrical faults and safety accidents.
Smart Images
Figure CN223583703U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the field of working machines, and in particular, relates to a cable assembly and a working machine comprising the same. BACKGROUND
[0002] Electric shovels in working machines are often used in open-pit mine operations. The electric shovel is usually connected to a power source through a high-voltage cable with a voltage of 6kV to 35kV to ensure the energy supply for its high-intensity operation.
[0003] However, the size and weight of the high-voltage cable are generally large, and it is easy to be mechanically damaged, such as abrasion and pulling, during the walking operation of the electric shovel, affecting the service life. When the mechanical damage is serious, the cable may fail, interrupt the production progress, and even cause safety accidents such as electric shock, fire, or explosion. CONTENT OF THE UTILITY MODEL
[0004] The purpose of the present application is to provide a cable assembly and a working machine to improve the reliability of the cable.
[0005] To achieve the above purpose, the present application provides a cable assembly in one aspect, which comprises:
[0006] a cable comprising a cable rear section, a cable middle section, and a cable front section;
[0007] a support frame for fixing the cable rear section, the cable front section extending from a front end of the support frame;
[0008] a force transmission assembly comprising a fixed connection part fixedly connected to the cable front section and a force guide connection piece for force transmission connection between the fixed connection part and the support frame, the force transmission assembly being arranged such that the cable middle section is formed in a non-taut state between the front end of the support frame and the fixed connection part.
[0009] In some embodiments, the force transmission assembly comprises a fixed sleeve as the fixed connection part, the fixed sleeve being sleeved on the cable front section.
[0010] In some embodiments, the central axis of the fixed sleeve is in the shape of a circular arc.
[0011] In some embodiments, the force transmission assembly further comprises:
[0012] a soft pad arranged between the fixed sleeve and the cable front section.
[0013] In some embodiments, the fixed sleeve is a split sleeve divided along the sleeve axis and comprises a first half sleeve and a second half sleeve which are detachably connected.
[0014] In some embodiments, ear hinge connection parts are arranged in position on the first half sleeve and the second half sleeve, and the ear hinge connection parts are connected through a fastening connection piece.
[0015] In some embodiments, the force guiding connection is a steel wire rope.
[0016] In some embodiments, the cable assembly comprises:
[0017] A suspension steel wire rope is arranged for suspending the mounting support frame.
[0018] In some embodiments, the support frame is provided with a plurality of cable fixing clamps arranged in sequence and at intervals along the cable routing direction.
[0019] Another aspect of the present application protects a working machine, which comprises:
[0020] The cable assembly described above.
[0021] Through the technical solution described above, the cable assembly provided by the embodiments of the present application has the following beneficial effects:
[0022] In the technical solution of the present application, the cable front section is fixed by the fixed connection part of the force transmission connection assembly, and the cable rear section is fixed by the support frame. After the cable is pulled by the movement of the carrier, the cable front section fixed by the fixed connection part is first pulled, and the force guiding connection limits the displacement of the cable front section, so that the cable middle section between the support frame and the fixed connection part is in a non-taut state, and the movement of the carrier does not pull the cable rear section to move relative to the end of the support frame, thereby avoiding the failure of the cable due to wear and tear. Compared with the prior art which only uses a cable support to fix the cable, the present application can significantly improve the service life and reliability of the cable.
[0023] Other features and advantages of the embodiments of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS
[0024] The accompanying drawings are included to provide a further understanding of the embodiments of the present application, and constitute a part of the specification, and are used together with the following specific embodiments to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained from the structures shown in the drawings without creative labor. In the drawings:
[0025] Figure 1 is a structural schematic view of the cable assembly according to the specific embodiments of the present application;
[0026] Figure 2 is a side view of the cable assembly in Figure 1 ;
[0027] Figure 3 is a structural schematic view of the fixed sleeve of the cable assembly in Figure 1 ;
[0028] Reference Signs List
[0029] 100 support frame 110 cable fixing clamp
[0030] 200 fixed connecting part 210 first half pipe sleeve
[0031] 220 second half pipe sleeve 230 fastening connecting part
[0032] 240 ear hinged connecting part 300 force guiding connecting part
[0033] 400 soft pad 500 suspension wire rope
[0034] 600 cable 610 front cable section
[0035] 620 middle cable section 630 rear cable section DETAILED DESCRIPTION
[0036] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the present application, and are not intended to limit the present application.
[0037] The cable assembly and working machine according to the present application are described below with reference to the accompanying drawings.
[0038] The present application discloses a novel cable assembly, such as Figure 1 and Figure 2 The cable assembly in a specific embodiment includes:
[0039] a cable 600 including a rear cable section 630, a middle cable section 620 and a front cable section 610;
[0040] a support frame 100 for fixing the rear cable section 630, the front cable section 610 extending from a front end of the support frame 100;
[0041] a force transmission assembly including a fixed connecting part 200 fixedly connected to the front cable section 610 and a force guiding connecting part 300 for transmitting force between the fixed connecting part 200 and the support frame 100, the force transmission assembly being arranged such that the middle cable section 620 is formed in a non-taut manner between the front end of the support frame 100 and the fixed connecting part 200.
[0042] Referring to Figure 2In order to avoid the abrasion of the cable 600 and the support frame 100 caused by the obvious relative movement, the support frame 100 only fixes the cable rear section 630, and the cable front section 610 is fixed by the fixed connecting part 200 of the force transmission connecting assembly. After the carrier moves and first pulls the cable front section 610, the cable front section 610 cannot continue to pull the cable rear section 630, so as to avoid the relative movement between the cable rear section 630 and the support frame 100. Compared with the prior art which only uses the cable support to fix the cable 600, the present application limits the movement of the cable 600 to the cable front section 610 through the design of the force transmission connecting assembly, so as to avoid the failure of the cable 600 caused by the abrasion with the support frame 100, thereby significantly improving the service life and reliability of the cable 600.
[0043] Those skilled in the art can understand that the fixed connecting part 200 for fixing the cable front section 610 can be in various forms, such as a sleeve or a clamping groove.
[0044] In the embodiment, as shown in Figure 2 , the force transmission connecting assembly includes a fixed sleeve as the fixed connecting part 200, which is sleeved on the cable front section 610. In this way, the fixed connecting part 200 can stably fix the cable front section 610, so as to avoid the movement of the cable 600 being transmitted to the cable rear section 630 to cause the relative movement between the cable rear section 630 and the support frame 100, thereby avoiding the abrasion of the cable 600.
[0045] In the embodiment, as shown in Figure 3 , the central axis of the fixed sleeve is in the form of a circular arc.
[0046] The fixed sleeve with the central axis in the form of a circular arc can more adaptively fit the curved surface of the cable 600 to reduce the internal stress generated by the deformation of the cable 600, thereby reducing the possibility of failure of the cable front section 610 caused by excessive local internal stress.
[0047] In the embodiment, as shown in Figure 3 , the force transmission connecting assembly further includes a soft pad 400, which is arranged between the fixed sleeve and the cable front section 610. The soft pad 400 can provide a larger contact area for the cable front section 610, so as to better fix the cable front section 610 and reduce the contact pressure between the fixed sleeve and the cable front section 610 to protect the cable front section 610.
[0048] In the embodiment, as shown in Figure 3As shown, the fixing sleeve is a split sleeve along the cross section of the sleeve axis and comprises a detachably connected first half sleeve 210 and a second half sleeve 220. In this way, the first half sleeve 210 and the second half sleeve 220 can jointly clamp the cable front section 610, and the detachable first half sleeve 210 and the second half sleeve 220 facilitate the fixing sleeve to be applicable to cables 600 of different outer diameters and also facilitate the adjustment of the fixing position of the fixing sleeve relative to the cable 600.
[0049] In the present embodiment, as shown, Figure 3 The first half sleeve 210 and the second half sleeve 220 are provided with ear hinge connecting portions 240 in a position opposite to each other, and the ear hinge connecting portions 240 are connected through a fastening connecting member 230. In this way, the fixing sleeve structure is not only simple but also can stably fix the cable 600, and is also convenient to disassemble, thereby facilitating the replacement and maintenance of the operator.
[0050] In order to better isolate the movement of the cable 600 from the cable rear section 630, the force guiding connecting member 300 can be in various forms, such as a swing rod or a rigging, so that the fixing sleeve can follow the cable front section 610 to move to a certain extent and adjust the posture of the cable front section 610 to reduce the maximum bending degree of the cable 600, thereby reducing the internal stress of the cable 600. In the present embodiment, as shown, Figure 1 and Figure 2 The force guiding connecting member 300 is a connecting steel wire rope.
[0051] Specifically, after the movement of the carrier, the cable front section 610 follows the movement and appears bending and dragging deformation. Since the force guiding connecting member 300 is a connecting steel wire rope, the fixing sleeve has a high degree of freedom and can follow the cable front section 610 to move to a certain extent, so that when the bending and dragging deformation degree of the cable front section 610 is too large, a certain deformation can occur in the high stress area to release the stress in the area, so as to ensure that the cable 600 can evenly share the deformation as much as possible, i.e., to reduce the maximum stress in the cable 600. In this way, the force guiding connecting member 300 can greatly improve the service life and reliability of the cable front section 610; after the cable front section 610 has evenly shared the deformation as much as possible, the pulling effect of the cable front section 610 on the cable rear section 630 can also be reduced, thereby strengthening the protection of the cable rear section 630. In addition, since the force guiding connecting member 300 is a connecting steel wire rope, the fixing sleeve has a high degree of freedom and can well adapt to different deformations caused by the movement of the cable 600 in different directions.
[0052] Of course, the force guiding connecting member 300 is not limited to a steel wire rope, but can also be a connecting belt or a connecting chain, and the material selection of the force guiding connecting member 300 can also be various, such as a composite elastic material. The form of the force guiding connecting member 300 can also be various, such as a swing rod with one end connected to the fixing sleeve and the other end pivotally connected to the support frame 100.
[0053] In the embodiment, as shown in Figure 1 and Figure 2 , the cable assembly comprises:
[0054] The suspension steel wire rope 500 is used for suspending the mounting support frame 100.
[0055] Specifically, referring to Figure 2 , one end of the support frame 100 is connected with a carrier (not shown in the figure), and the other end of the support frame 100 is suspended by the suspension steel wire rope 500 connected with the carrier, so as to realize the fixation of the support frame 100. In this way, not only the disassembly and assembly of the support frame 100 can be facilitated, but also the vertical angle of the support frame 100 can be changed by adjusting the length of the suspension steel wire rope, thereby improving the applicability of the cable assembly to different operation scenarios. The number of the suspension steel wire ropes is two, which respectively extend to both sides of the width direction of the support frame 100. In this way, the horizontal angle of the support frame 100 can also be changed by adjusting the length of the suspension steel wire rope, and the structure is simple and the adjustment is convenient.
[0056] In the embodiment, as shown in Figure 1 and Figure 2 , the support frame 100 is provided with a plurality of cable fixing clamps 110 arranged in sequence and at intervals along the wiring direction of the cable 600. In this way, the fixation of the cable 600 relative to the support frame 100 can be conveniently realized.
[0057] Specifically, referring to Figure 2 , the support frame 100 is a rod member, the support frame 100 is provided with a plurality of cable fixing clamps 110 arranged at intervals along the length direction of the support frame 100, the cable 600 is installed along the length direction on the interval arrangement, and is connected with the support frame 100 through the cable fixing clamps 110, wherein the cable fixing clamps 110 are detachably connected with the support frame 100 through bolts penetrating the mounting holes of the cable fixing clamps 110 and the fixing holes of the support frame 100.
[0058] Of course, the fixation mode of the cable 600 relative to the support frame 100 is not limited to the above mode, after the front segment 610 of the cable is stably fixed, the rear segment 630 of the cable can also be clamped to the support frame 100 only through the elastically arranged cable fixing clamps 110. Other fixation modes of the cable 600 relative to the support frame 100 will not be described here.
[0059] The application discloses a novel operation machine, and the operation machine in one specific embodiment comprises the above-mentioned cable assembly.
[0060] The cable assembly is detachably arranged on the track frame of the working machine through a quick release assembly such as a bolt, and the fixed end of the suspension wire rope 500 is also arranged on the working machine, so that the cable assembly is arranged on the working machine conveniently and flexibly, and the installation steps and required manpower of the cable assembly are simplified. In addition, the cable assembly can also improve the safety and reliability of the working machine, reduce the possibility of electrical failure, electric shock, fire and even explosion accidents, and ensure the safety of personnel and the continuity of work. Obviously, the working machine also has all the technical effects of the above-mentioned cable assembly, so here is not repeated.
[0061] In the description of the present application, it should be understood that the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.
[0062] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and other terms should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or communicate with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0063] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.
Claims
1. A cable assembly, characterized by The cable assembly comprises: a cable (600) comprising a cable rear section (630), a cable middle section (620) and a cable front section (610); a support frame (100) for fixing the cable rear section (630), the cable front section (610) extending from a front end of the support frame (100); a force transmission assembly comprising a fixed connection part (200) fixedly connected to the cable front section (610) and a force guide connection member (300) for force transmission between the fixed connection part (200) and the support frame (100), the force transmission assembly being arranged such that the cable middle section (620) is formed in a non-taut manner between the front end of the support frame (100) and the fixed connection part (200).
2. The cable assembly of claim 1, wherein, The force transmission assembly comprises a fixed sleeve as the fixed connection part (200), the fixed sleeve being sleeved on the cable front section (610).
3. The cable assembly of claim 2, wherein, The central axis of the fixed sleeve is in the shape of a circular arc.
4. The cable assembly of claim 2, wherein, The force transmission assembly further comprises: a soft pad (400) arranged between the fixed sleeve and the cable front section (610).
5. The cable assembly of claim 4, wherein, The fixed sleeve is a split sleeve along the sleeve axial section and comprises a first half sleeve (210) and a second half sleeve (220) which are detachably connected.
6. The cable assembly of claim 5, wherein, Ear hinge connection parts (240) are arranged in position on the first half sleeve (210) and the second half sleeve (220), and the ear hinge connection parts (240) are connected by a fastening connection member (230).
7. The cable assembly of claim 1, wherein, The force guide connection member (300) is a steel wire rope.
8. The cable assembly of claim 1, wherein, The cable assembly comprises: a suspension steel wire rope (500) for suspending and installing the support frame (100).
9. The cable assembly of claim 1, wherein, The support frame (100) is provided with a plurality of cable fixing clamps (110) arranged in sequence and at intervals along the wiring direction of the cable (600).
10. A work machine characterized by, The working machine comprises: The cable assembly according to any one of claims 1-9.