Cable protection device for mining equipment

Abstract

The invention relates to the technical field of roadway support, and discloses a cable protection device for mining equipment, which comprises a protection shell and a cable body, and further comprises a supporting assembly, the supporting assembly comprises a fixing plate, the fixing plate is slidably mounted in a groove body in an arc-shaped part of the protection shell, an arc-shaped plate is fixedly mounted on the fixing plate, a through groove is formed in the arc-shaped plate, and the through groove is communicated with the cable body; and the protective net bypasses the outer side of the supporting assembly and plays a role in protecting the supporting assembly. Through cooperation of the supporting assembly and the protective net, most of coal mine equipment can move during use, when holes appear in the side wall of a roadway and the equipment moves, a cable can be pulled to move, and when the cable moves, the supporting assembly and the protective net can be driven to move in the direction close to the side wall of the roadway, so that the supporting assembly is tightly attached to the side wall of the roadway; meanwhile, the distance between the arc-shaped plate and the arc-shaped part of the protection shell is increased, the probability that the heat dissipation holes are blocked is reduced, and meanwhile the cable can be stably supported through the supporting assembly.

Description

Technical Field

[0001] This invention relates to the field of tunnel support technology, specifically to a cable protection device for mining equipment. Background Technology

[0002] In mining equipment, cables are the core carrier connecting key equipment such as coal mining machines and conveyors to the power supply and control systems, bearing the heavy responsibility of power transmission and signal interaction. In the underground roadway environment, cables must be laid in narrow spaces as the equipment moves, facing multiple threats such as falling rocks from the roof, dragging and friction from equipment, and scratches from sharp rock walls. At the same time, high humidity and corrosive gases accelerate their aging. Once a cable is damaged, it not only causes equipment shutdown but may also lead to safety accidents such as leakage, short circuits, or even gas explosions. Therefore, the reliability of its protection is directly related to the mine's production efficiency and safety.

[0003] Current cable protection primarily relies on three methods: metal armored conduits provide a rigid structure to withstand impacts and are commonly used in fixed or low-movement scenarios; rubber sheaths cushion friction with elastic materials, emphasizing corrosion resistance and flexibility; and spiral-wound protective tape uses low-cost abrasion-resistant materials spirally wrapped around the cable body, suitable for temporary or light-load protection. In some scenarios, plastic conduits are also used to isolate moisture, or cable trays are used to organize wiring, forming a basic protection system.

[0004] However, in actual use, if metal armored pipes are used at tunnel corners, they are difficult to fit against the tunnel sidewalls, which will affect the normal transportation of the tunnel. If rubber sleeves are used, they cannot protect the cable when gangue falls from the tunnel sidewalls, making it easy for the cable to be damaged by falling gangue during use, affecting normal use. When gangue falls and creates a gap between the tunnel sidewall and the cable, the gangue may accumulate there, blocking the cable's heat dissipation holes, causing the cable to overheat abnormally, or even causing a fire. Summary of the Invention

[0005] In view of this, a cable protection device for mining equipment is proposed to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a cable protection device for mining equipment, comprising a protective shell and a cable body, and further comprising:

[0007] A support component is provided in the arc-shaped part of the protective shell to support the cavity when rockfall occurs in the tunnel, causing a cavity.

[0008] A protective net is installed on the support assembly to prevent falling gangue from directly hitting the protective shell;

[0009] The support assembly includes a fixing plate, which is slidably installed in a groove on the arc-shaped part of the protective shell. An arc-shaped plate is fixedly installed on the fixing plate, and a through groove is opened on the arc-shaped plate. The protective net passes around the outside of the support assembly and plays a protective role for the support assembly. When in the initial position, there is a certain distance between the arc-shaped plate and the arc-shaped part of the protective shell.

[0010] Preferably, the protective shell has an inner cavity, in which a protective box is fixedly installed. The protective box is filled with a protective gas, including but not limited to inert gases such as nitrogen and carbon dioxide, and the temperature of the protective gas is between 0-10°C.

[0011] Preferably, the cavity of the protective shell is provided with a plurality of clamping components, the clamping components are disposed on the fixing plate of the support component, and the cable body is located between two clamping blocks of the clamping components.

[0012] Preferably, the clamping assembly includes a clamping frame, a plurality of protective plates are fixedly installed on the inner side of the clamping frame, a fixing rod is slidably installed on the clamping frame, and a blocking block is fixedly installed on the fixing rod, the blocking block being located inside the clamping frame.

[0013] Preferably, the bottom of the protective shell is fixedly installed with several fixing components, each including a fixing frame, which is fixedly connected to the bottom plate of the protective shell. An mounting plate is fixedly installed on the side of the fixing frame away from the protective shell, and a groove is formed between the fixing frames, with reinforcing ribs fixedly installed in the groove.

[0014] Preferably, the reinforcing rib is X-shaped and has a locking hole.

[0015] Preferably, a plurality of protective components are fixedly installed in the inner cavity of the protective shell below the clamping assembly. The protective components include protective blocks, and a plurality of protrusions are fixedly installed on the protective blocks.

[0016] Preferably, the protective block has a trapezoidal cross-section, and the protrusions are fixedly installed at equal intervals on the inclined surface of the protective block.

[0017] Preferably, when the cable body is in the initial position, the inclined surface of the protective box is in close contact with the cable body.

[0018] Preferably, the protective components are symmetrically arranged on the top and bottom plates of the inner cavity of the protective shell.

[0019] Compared with the prior art, the present invention provides a cable protection device for mining equipment, which has the following advantages:

[0020] 1. This invention, through the cooperation of support components and protective nets, addresses the issue that most coal mine equipment moves during use. When a cavity appears in the sidewall of the roadway and the equipment moves, it pulls the cable along. As the cable moves, it causes the support components and protective nets to move closer to the sidewall of the roadway, making the support components fit tightly against the sidewall. This also increases the distance between the arc-shaped plate and the arc-shaped part of the protective shell, reducing the probability of the heat dissipation holes being blocked. At the same time, the support components provide stable support for the cable.

[0021] 2. Through the cooperation of the clamping assembly and the protective component, when the cable moves closer to the side wall of the tunnel, the protective box and the initial clamping assembly can no longer fix it. The clamping frame on the clamping assembly will deform under the squeezing action of the protective component, so that the two clamping frames and the protective plate move closer to each other and the fixing rod moves downward, which can fix the cable more firmly.

[0022] 3. This invention utilizes the cooperation of the clamping component and the fixing component. When the clamping frame on the clamping component deforms to its maximum position, the tunnel sidewall has a large cavity, indicating severe rockfall. The blocking block moves downward with the deformation of the clamping frame, which in turn moves the fixing rod downward. The fixing rod then moves into the locking hole on the fixing component, allowing the clamping component and the fixing component to be combined. At this point, the cable at its maximum position can be fixed by the fixing component, and the core part of the entire device is moved closer to the sidewall, reducing the impact of rockfall on the cable and extending its service life. Attached Figure Description

[0023] Figure 1 This is an overall structural diagram of the present invention;

[0024] Figure 2 This is a diagram of the internal structure of the present invention;

[0025] Figure 3 This is a bottom structural diagram of the present invention;

[0026] Figure 4 This is a structural diagram of the arc-shaped side of the present invention;

[0027] Figure 5 This is an anatomical diagram of the support components and protective netting of the present invention;

[0028] Figure 6 For the present invention Figure 2 Structural diagram at point A;

[0029] Figure 7 This is an overall structural diagram of the clamping assembly of the present invention;

[0030] Figure 8 This is an overall structural diagram of the protective component of the present invention.

[0031] In the picture:

[0032] 1. Protective casing; 2. Cable body;

[0033] 3. Supporting components; 31. Fixing plate; 32. Curved plate; 33. Through groove;

[0034] 4. Protective netting; 5. Protective box;

[0035] 6. Clamping assembly; 61. Clamping frame; 62. Protective plate; 63. Fixing rod; 64. Blocking block;

[0036] 7. Fixing components; 71. Fixing bracket; 72. Mounting plate; 73. Reinforcing rib; 74. Clip hole;

[0037] 8. Protective components; 81. Protective blocks; 82. Protrusions. Detailed Implementation

[0038] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, some features described in the examples may be combined in other examples.

[0039] like Figures 1 to 8 As shown, this embodiment of the invention provides a cable protection device for mining equipment, including a protective shell 1 and a cable body 2, and further comprising:

[0040] Support component 3 is located in the arc-shaped part of the protective shell 1 and is used to support the cavity when rockfall occurs in the roadway, causing a cavity.

[0041] The protective net 4 is installed on the support component 3 to prevent falling gangue from directly hitting the protective shell 1;

[0042] The support assembly 3 includes a fixing plate 31, which is slidably installed in a groove on the arc-shaped part of the protective shell 1. An arc-shaped plate 32 is fixedly installed on the fixing plate 31, and a through groove 33 is opened on the arc-shaped plate 32. The protective net 4 passes around the outside of the support assembly 3 and plays a protective role for the support assembly 3. When it is in the initial position, there is a certain distance between the arc-shaped plate 32 and the arc-shaped part of the protective shell 1.

[0043] The working principle and beneficial effects of the above technical solution are as follows: The device is installed at the corner of the tunnel, and the cable body 2 passes through the protective shell 1. The straight section of the cable body 2 is fitted with a metal armored tube or rubber sheath. The arc-shaped section of the protective shell 1 is pressed tightly against the side wall of the tunnel. When the side wall of the tunnel experiences rockfall and voids appear, the equipment connected to the cable body 2 will move, pulling the cable body 2. At this time, the cable body 2 will drive the support component 3 to move closer to the side wall of the tunnel. When the support component 3 moves, it will squeeze the protective net 4. The through groove 33 on the support component 3 can adapt to different shapes of tunnel side walls, resulting in a better fit. Furthermore, since there is a certain distance between the arc plate 32 and the protective shell 1, the falling rock will not block the heat dissipation holes located in the arc section of the protective shell 1, reducing the possibility of the cable burning due to high temperature.

[0044] In one embodiment: the protective shell 1 is provided with an inner cavity, and a protective box 5 is fixedly installed in the inner cavity. The protective box 5 is filled with a protective gas, including but not limited to inert gases such as nitrogen and carbon dioxide, and the temperature of the protective gas is between 0-10°C.

[0045] The working principle and beneficial effects of the above technical solution are as follows: the protective box 5 is in close contact with the cable body 2, and since the temperature of the protective gas is between 0-10℃, it can cool down the bending part of the cable body 2 to a certain extent. Furthermore, since the protective gas is an inert gas, even if it leaks when impacted by falling gangue, it will not cause safety problems.

[0046] In one embodiment: a plurality of clamping components 6 are provided in the cavity of the protective shell 1, the clamping components 6 are disposed on the fixing plate 31 of the support component 3, and the cable body 2 is located between two clamping blocks of the clamping components 6.

[0047] The working principle and beneficial effects of the above technical solution are as follows: the clamping component 6 can ensure that the cable body 2 will not fall off when it moves, and reduce the probability of the cable body 2 being worn.

[0048] In one embodiment, the clamping assembly 6 includes a clamping frame 61, a plurality of guard plates 62 are fixedly installed on the inner side of the clamping frame 61, a fixing rod 63 is slidably installed on the clamping frame 61, and a blocking block 64 is fixedly installed on the fixing rod 63, the blocking block 64 being located inside the clamping frame 61.

[0049] The working principle and beneficial effects of the above technical solution are as follows: the cable body 2 is located between the two protective plates 62, and the clamping assembly 6 will further clamp the cable body 2 as it moves towards the side wall of the tunnel. At the same time, when the clamping frame 61 moves towards each other, it will drive the blocking block 64 to move downward, thereby driving the fixing rod 63 to move.

[0050] In one embodiment: a plurality of fixing components 7 are fixedly installed on the bottom of the protective shell 1. The fixing components 7 include fixing frames 71, which are fixedly connected to the bottom plate of the protective shell 1. An mounting plate 72 is fixedly installed on the side of the fixing frame 71 away from the protective shell 1. A groove is opened between the fixing frames 71, and a reinforcing rib 73 is fixedly installed in the groove.

[0051] The working principle and beneficial effects of the above technical solution are as follows: The mounting plate 72 on the fixing component 7 is fixed to the tunnel floor plate by bolts and other fasteners. Since the fixing components 7 are close to the tunnel side wall, they can support the protective shell 1 and keep it at a certain distance from the ground. This can effectively prevent water from seeping into the protective shell 1 and causing damage to the cable body 2 when the tunnel floor overflows. At the same time, the reinforcing rib 73 can effectively improve the fixing effect of the fixing component 7 and reduce the probability of damage.

[0052] In one embodiment, the reinforcing rib 73 is X-shaped and has a locking hole 74.

[0053] The working principle and beneficial effects of the above technical solution are as follows: Since the reinforcing rib 73 is X-shaped, the force can be distributed to each reinforcing plate through multiple reinforcing plates, reducing the force on each reinforcing plate and reducing the probability of damage to the fixing component 7. At the same time, the reinforcing rib 73 is also coated with a waterproof coating, which can effectively prevent water on the tunnel floor from causing the fixing component 7 to rust.

[0054] In one embodiment: a plurality of protective components 8 are fixedly installed in the inner cavity of the protective shell 1 below the clamping assembly 6. The protective components 8 include protective blocks 81, and a plurality of protrusions 82 are fixedly installed on the protective blocks 81.

[0055] The working principle and beneficial effects of the above technical solution are as follows: Two protective parts 8 are symmetrically arranged above and below each clamping component 6. When the bent part of the clamping frame 61 contacts the protective part 8, the clamping frame 61 can move towards each other through the protrusion 82 on the protective part 8. This strengthens the fixing effect on the cable body 2 when the clamping component 6 moves. In addition, since the protective block 81 is made of rubber, it can play a shock-absorbing role when the cable body 2 moves to contact the protective block 81, reducing the probability of damage to the cable body 2.

[0056] In one embodiment, the protective block 81 has a trapezoidal cross-section, and the protrusions 82 are fixedly installed at equal intervals on the inclined surface of the protective block 81.

[0057] The working principle and beneficial effects of the above technical solution are as follows: Since the cross-section of the protective block 81 is trapezoidal and the protrusion 82 is set on the inclined surface of the protective block 81, when the bending part of the clamping frame 61 contacts the protective component 8, the clamping frame 61 can move towards each other through the protrusion 82 on the protective component 8. This can strengthen the fixing effect on the cable body 2 when the clamping component 6 moves. At the same time, the highest point of the inclined surface of the protrusion 82 contacts the bottom plate of the fixing plate 31 located in the inner cavity of the protective shell 1. Before reaching the maximum position, the friction of multiple protective blocks 81 can prevent the support component 3 from moving away from the roadway sidewall under the squeezing action of some gangue.

[0058] In one embodiment: when the cable body 2 is in the initial position, the inclined surface of the protective box 5 is in close contact with the cable body 2.

[0059] The working principle and beneficial effects of the above technical solution are as follows: the protective box 5 is in close contact with the cable body 2, and since the temperature of the protective gas is between 0-10℃, it can cool down the bending part of the cable body 2 to a certain extent. Furthermore, since the protective gas is an inert gas, even if it leaks when impacted by falling gangue, it will not cause safety problems.

[0060] In one embodiment, the protective element 8 is symmetrically arranged on the top and bottom plates of the inner cavity of the protective shell 1.

[0061] The working principle and beneficial effects of the above technical solution are as follows: When the clamping frame 61 on the clamping assembly 6 deforms to the maximum position, the cavity in the side wall of the roadway is large, indicating that the rockfall in the side wall is serious. The blocking block 64 will move downward with the deformation of the clamping frame 61, which will in turn drive the fixing rod 63 to move downward. The fixing rod 63 will then move into the locking hole 74 on the fixing assembly 7, so that the clamping assembly 6 and the fixing assembly 7 can be combined together. At this time, the cable that has moved to the maximum position can be fixed by the fixing assembly 7, and the core part of the entire device is moved to a position close to the side wall, reducing the impact of rockfall on the cable and extending its service life.

[0062] Working principle and usage process: Install this device at the corner of the tunnel, pass the cable body 2 through the protective shell 1, install the metal armor tube or rubber sheath on the straight section of the cable body 2, and fit the arc section of the protective shell 1 tightly against the side wall of the tunnel. When the side wall of the tunnel is broken and a hole appears, when the equipment connected to the cable body 2 moves, it will pull the cable body 2. At this time, the cable body 2 will drive the support component 3 to move closer to the side wall of the tunnel. When the support component 3 moves, it will squeeze the protective net 4, and the through groove 33 on the support component 3 can adapt to different shapes of tunnel side walls, so as to achieve a better fit. Since there is a certain distance between the arc plate 32 and the protective shell 1, the falling rock will not block the heat dissipation holes located on the arc section of the protective shell 1, reducing the possibility of the cable burning due to high temperature.

[0063] Specifically, the protective box 5 is in close contact with the cable body 2, and since the temperature of the protective gas is between 0-10℃, it can cool down the bending part of the cable body 2 to a certain extent. Furthermore, since the protective gas is an inert gas, even if it leaks when impacted by falling gangue, it will not cause any safety problems.

[0064] After this, the cable body 2 is located between the two protective plates 62, and the clamping assembly 6 will move towards the side wall of the tunnel as the cable body 2 moves to further clamp the cable body 2. At the same time, when the clamping frame 61 moves towards each other, it will drive the blocking block 64 to move downward, thereby driving the fixing rod 63 to move. There are two protective parts 8 symmetrically arranged above and below each clamping assembly 6. When the bend of the clamping frame 61 contacts the protective part 8, the protrusion 82 on the protective part 8 can make the clamping frame 61 move towards each other, which can strengthen the fixing effect of the cable body 2 when the clamping assembly 6 moves. Since the protective block 81 is made of rubber, it can play a shock-absorbing role when the cable body 2 moves to contact the protective block 81, reducing the probability of damage to the cable body 2.

[0065] Furthermore, the mounting plate 72 on the fixing component 7 is fixed to the tunnel floor plate with bolts and other fasteners. Since the fixing components 7 are all close to the tunnel side wall, they can support the protective shell 1 and keep it at a certain distance from the ground. This can effectively prevent water from seeping into the protective shell 1 and causing damage to the cable body 2 when the tunnel floor overflows. At the same time, the reinforcing rib 73 can effectively improve the fixing effect of the fixing component 7 and reduce the probability of damage.

[0066] In addition, since the reinforcing rib 73 is X-shaped, the force can be distributed to each reinforcing plate through multiple reinforcing plates, reducing the force on each reinforcing plate and reducing the probability of damage to the fixing component 7. At the same time, the reinforcing rib 73 is also coated with a waterproof coating, which can effectively prevent water on the tunnel floor from causing the fixing component 7 to rust.

[0067] It is worth noting that, since the cross-section of the protective block 81 is trapezoidal and the protrusion 82 is set on the inclined surface of the protective block 81, when the bent part of the clamping frame 61 contacts the protective member 8, the protrusion 82 on the protective member 8 can make the clamping frame 61 move towards each other, which can strengthen the fixing effect on the cable body 2 when the clamping assembly 6 moves. At the same time, the highest point of the inclined surface of the protrusion 82 contacts the bottom plate of the fixing plate 31 located in the inner cavity of the protective shell 1. When the maximum position is not reached, the friction of multiple protective blocks 81 can prevent the support assembly 3 from moving away from the roadway sidewall under the squeezing action of some gangue.

[0068] Finally, when the clamping frame 61 on the clamping assembly 6 deforms to its maximum position, the cavity in the roadway sidewall is large, indicating severe rockfall. The blocking block 64 moves downward with the deformation of the clamping frame 61, which in turn moves the fixing rod 63 downward. The fixing rod 63 then moves into the locking hole 74 on the fixing assembly 7, allowing the clamping assembly 6 and the fixing assembly 7 to be combined. At this point, the cable at its maximum position can be fixed by the fixing assembly 7, and the core part of the entire device is moved closer to the sidewall, reducing the impact of rockfall on the cable and extending its service life.

[0069] The embodiments of the present invention have been described above, but the embodiments are not limited to the specific implementation methods described above. The specific implementation methods described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the embodiments described above, all of which are within the protection scope of the embodiments described above.

Claims

1. A cable protection device for mining equipment, comprising a protective shell (1) and a cable body (2), characterized in that, Also includes: The support component (3) is disposed in the arc-shaped part of the protective shell (1) and is used to support the cavity when the roadway is cavitated by rockfall; A protective net (4) is installed on the support assembly (3) to prevent falling gangue from directly hitting the protective shell (1); The support component (3) includes a fixing plate (31), which is slidably installed in a groove on the arc-shaped part of the protective shell (1). An arc-shaped plate (32) is fixedly installed on the fixing plate (31), and a through groove (33) is provided on the arc-shaped plate (32). The protective net (4) passes around the outside of the support component (3) and plays a protective role for the support component (3). When it is in the initial position, there is a certain distance between the arc-shaped plate (32) and the arc-shaped part of the protective shell (1).

2. The cable protection device for mining equipment according to claim 1, characterized in that: The protective shell (1) is provided with an inner cavity, and a protective box (5) is fixedly installed in the inner cavity. The protective box (5) is filled with a protective gas, including but not limited to inert gases such as nitrogen and carbon dioxide, and the temperature of the protective gas is between 0-10℃.

3. A cable protection device for mining equipment according to claim 2, characterized in that: The protective shell (1) is provided with a plurality of clamping components (6) in its cavity. The clamping components (6) are disposed on the fixing plate (31) of the support component (3). The cable body (2) is located between the two clamping blocks of the clamping components (6).

4. A cable protection device for mining equipment according to claim 3, characterized in that: The clamping assembly (6) includes a clamping frame (61), a plurality of guard plates (62) are fixedly installed on the inner side of the clamping frame (61), a fixing rod (63) is slidably installed on the clamping frame (61), and a blocking block (64) is fixedly installed on the fixing rod (63), the blocking block (64) being located inside the clamping frame (61).

5. A cable protection device for mining equipment according to claim 4, characterized in that: The bottom of the protective shell (1) is fixedly installed with several fixing components (7). The fixing components (7) include fixing frames (71). The fixing frames (71) are fixedly connected to the bottom plate of the protective shell (1). An mounting plate (72) is fixedly installed on the side of the fixing frame (71) away from the protective shell (1). A groove is opened between the fixing frames (71). A reinforcing rib (73) is fixedly installed in the groove.

6. A cable protection device for mining equipment according to claim 5, characterized in that: The reinforcing rib (73) is X-shaped, and the reinforcing rib (73) has a locking hole (74).

7. A cable protection device for mining equipment according to claim 6, characterized in that: Several protective components (8) are fixedly installed in the inner cavity of the protective shell (1) below the clamping assembly (6). The protective components (8) include protective blocks (81), and several protrusions (82) are fixedly installed on the protective blocks (81).

8. A cable protection device for mining equipment according to claim 7, characterized in that: The protective block (81) has a trapezoidal cross-section, and the protrusions (82) are fixedly installed at equal intervals on the inclined surface of the protective block (81).

9. A cable protection device for mining equipment according to claim 8, characterized in that: When the cable body (2) is in the initial position, the inclined surface of the protective box (5) is in close contact with the cable body (2).

10. A cable protection device for mining equipment according to claim 9, characterized in that: The protective components (8) are symmetrically arranged on the top and bottom plates of the inner cavity of the protective shell (1).

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