A cable guard plate for coal mining machine in underground coal mine

Abstract

The present application relates to the technical field of cable installation and protection, and in particular to a cable guard for coal mining machines in underground coal mines, which includes a protection box and a cover plate. The protection box is hollow inside, and a cooling box and a plurality of support members are added inside the protection box. The plurality of support members are evenly distributed around the cooling box at intervals, and the cooling box and the plurality of support members are both arranged at the bend of the cable; the cooling box is filled with cooling gas, and the cooling box is used to cool the bend of the cable, and the plurality of support members are used to support the bend of the cable, and the plurality of support members control the degree of cooling of the cable bend by the cooling box while supporting the bend of the cable. The purpose of the present application is to extend the service life of the cable and ensure the safe operation of the power system.

Description

Technical Field

[0001] This application relates to the technical field of cable installation and its protection, and particularly to a cable guard plate for a shearer in underground coal mines. Background Art

[0002] A shearer is a large and complex system integrating machinery, electricity, and hydraulics. The working environment is harsh. If there are problems with its circuits, it will lead to the interruption of the entire coal mining operation, causing huge economic losses. Therefore, the cable on the shearer is generally placed inside a guard plate, and the guard plate can effectively protect the cable inside to avoid being damaged by compression.

[0003] In related technologies, after the cable is installed into the corresponding guard plate, due to the long length of the cable, the cable needs to be bent inside the corresponding guard plate, such as being bent into a "U" shape or a "凵" shape. Bending the cable during installation is a common situation, but long-term bending will cause the cable to be worn at the bending point, thus affecting the integrity and performance of the cable, shortening the service life of the cable, and being unfavorable for the long-term operation of the cable.

[0004] At the same time, at the bending point of the cable, due to the conductor being squeezed, its cross-sectional area decreases, resulting in an increase in the resistance at the bending point. This causes more heat to be generated at the bending point of the cable, and the increase in temperature will accelerate the aging process of the insulating material. Especially at the bending point, due to the dual effects of poor heat dissipation and mechanical stress, the aging speed of the insulation at the bending point of the cable is accelerated. Therefore, temperature management at the bending point of the cable is very important.

[0005] However, the traditional guard plate cannot effectively protect the bending point of the cable, which is not conducive to the operation of the cable. Summary of the Invention

[0006] This application provides a cable guard plate for a shearer in underground coal mines, aiming to appropriately set support points on the cable path to reduce the bending degree of the cable during operation. At the same time, it can also adjust the temperature at the bending point of the cable. This enables these support points to effectively reduce the wear of the cable at the bending point while effectively controlling the temperature at the bending point of the cable, thereby being conducive to extending the service life of the cable and ensuring the safe operation of the power system.

[0007] This application provides a cable guard plate for a shearer in underground coal mines, adopting the following technical solutions:

[0008] A cable guard plate for a coal mining machine in an underground coal mine, comprising a protection box and a cover plate, wherein the protection box is hollow inside, and a cooling box and a plurality of supporting members are added inside the protection box, and the plurality of supporting members are evenly spaced and distributed around the cooling box, and the cooling box and the plurality of supporting members are both arranged at the bending part of the cable; the cooling box is filled with cooling gas, and the cooling box is used to cool the bending part of the cable, and the plurality of supporting members are used to support the bending part of the cable, and while the plurality of supporting members support the bending part of the cable, the degree to which the cooling box cools the bending part of the cable is regulated.

[0009] By adopting the above technical solution, the cooling box is filled with cooling gas, and the cooling gas is used to cool the bend of the cable. These support members are used to support the bend of the cable, and appropriate support points are added at the bend of the cable through these support members, and then the support force provided to the bend of the cable by these support points effectively offsets the degree of bending at the bend of the cable, so as to effectively reduce the bending of the cable, thereby reducing the wear caused by long-term bending at the bend of the cable. At the same time, while supporting the bend of the cable, these support members can adjust the degree of cooling and cooling of the bend of the cable by the cooling box, which makes the cooling box more flexible in cooling the bend of the cable, and can cool and cool according to different conditions of the bend of the cable, which is more conducive to extending the service life of the cable and ensuring the safe operation of the power system.

[0010] Preferably, the support member includes a support block and a support tube, the support tube is fixed on a side of the cooling box close to the cable, the support tube is hollow inside, the end of the support tube away from the cooling box is open, and an air hole is penetrated through the side of the support tube close to the cooling box, and the support tube is connected with the cooling box through the air hole; the support block is slidably installed in the support tube along the length direction of the support tube, and the support block is used to support the bending part of the cable.

[0011] By adopting the above technical solution, the support block is installed in the support tube by sliding along the length direction of the support tube, which enables the support block to slide in the direction close to or away from the cable bend, and then enables these support blocks to adjust and support cables with different bending degrees according to the distance they slide out from the support tube. In other words, when facing a cable with a large bending degree, the distance that the support block slides out from the support tube is increased. The purpose of doing so is to increase the support force of the support block on the cable bend, because the more the support block slides out from the support tube, the greater the force that the support block presses against the cable bend, and then the more it helps to offset the bending force at the cable bend. When facing a cable with a small bending degree, the distance that the support block slides out from the support tube can be reduced. Then, by adjusting the distance that the support block slides out from the support tube, these support blocks can adapt to cables with different bending degrees, which is conducive to improving the overall adaptability of the cable guard.

[0012] Preferably, the support block is in the shape of a right triangle as a whole, one side of which is a vertical surface and the other side is a wedge-shaped surface, and the top surface of the support block is sealed at the open end of the support tube.

[0013] By adopting the above technical solution, when the cable is not installed in the protection box, the support block does not need to slide out of the support tube, and the cooling box does not need to cool the cable. In this state, the top surface of the support block is flush with the open end of the support tube, and the support tube is sealed by the top surface of the support block, effectively preventing the cooling gas in the cooling box from leaking out of the support tube.

[0014] When the cable is installed in the protection box, the support members on the side of the cooling box correspond to the bending part of the cable. Slide the support block out of the support tube toward the bending part of the cable until the support block abuts against the bending part of the cable. In this state, the support blocks provide reverse support force to the bending part of the cable, which is helpful to offset the bending force of the bending part of the cable.

[0015] At the same time, as the support block slides out toward the direction close to the cable bend, the open end of the support tube gradually opens. At this time, the cooling gas in the cooling box overflows from the support tube through the air holes at the bottom of the support tube and flows to the bend of the cable. Then, the support block supports the bend of the cable while cooling the bend of the cable.

[0016] Since the side wall of the support block is a wedge-shaped surface, as the support block slides out of the support tube, the opening of the open end of the support tube becomes larger. The purpose of this is that the greater the degree of bending at the cable bend, the greater the resistance it generates, which in turn leads to more heat generated here. At the same time, the greater the degree of bending at the cable bend, the greater the supporting force it requires.

[0017] The further the support block slides out of the support tube, the greater the degree of the cable bend, and the more cooling gas is needed. One side of the support block is set as a wedge-shaped surface, so that as the support block slides out of the support tube, the opening of the open end of the support tube becomes larger, and the cooling effect on the cable bend becomes better. This allows the support force provided by the support block to the cable bend and the cooling effect of the cooling box on the cable bend to be linked.

[0018] In summary, as the bending degree of the cable increases, the distance that the support block slides out of the support tube increases. Since one side of the support block is a wedge-shaped surface, the distance that the support block slides out of the support tube increases, which can bring two effects at the same time:

[0019] 1. The greater the support force of the support block on the cable bend;

[0020] Second, the larger the opening at one end of the support tube is, the better the cooling effect on the cable bend will be.

[0021] Preferably, a side of the cooling box close to the bending part of the cable is in an arc shape, and a plurality of the support members are evenly distributed at intervals to the arc-shaped side of the cooling box.

[0022] By adopting the above technical solution, the purpose of doing so is that since the cable bending part is in an arc shape, the side of the cooling box close to the cable bending part is set to a curved arc shape, which can enable multiple support members to cover the bending part of the cable, thereby facilitating improvement of the supporting effect of these support members on the cable bending part.

[0023] Preferably, a rubber pad is installed at one end of the support block close to the cable.

[0024] By adopting the above technical solution, the rubber pad has a relatively soft texture, and the rubber pad can effectively prevent the support block from directly contacting the cable, thereby facilitating the protection of the cable.

[0025] Preferably, a driving gear is added in the horizontal direction inside the support tube, the vertical surface of the support block is tooth-shaped, and the vertical surface is meshed and connected with the driving gear; a knob is installed on the outer wall of the support tube, and the knob and the driving gear are integrally connected through a rotating shaft.

[0026] By adopting the above technical solution, the driving gear is driven to rotate by the knob, and a corresponding locking rod is installed on the knob. When the support block slides to the specified position, the knob is locked by the locking rod, which can effectively ensure that the position of the support block will not be displaced.

[0027] Preferably, a plurality of hoops for fixing cables are evenly installed on the left and right sides of the interior of the protection box.

[0028] By adopting the above technical solution, after the cable is installed in the protection box, these hoops are sleeved around the cable to effectively ensure the stability of the cable installation.

[0029] In summary, the present application includes at least one of the following beneficial technical effects:

[0030] 1. The cooling box is filled with cooling gas, which is used to cool the bends of the cable. These supports are used to support the bends of the cable. Appropriate support points are added to the bends of the cable through these supports, and the support force provided by these support points to the bends of the cable effectively offsets the degree of bending of the cable, so as to effectively reduce the bending of the cable, thereby reducing the wear caused by long-term bending of the cable. At the same time, while supporting the bends of the cable, these supports can adjust the degree of cooling of the cable bends by the cooling box, which makes the cooling box more flexible in cooling the cable bends, and can cool the cable according to different conditions of the cable bends, which is more conducive to extending the service life of the cable and ensuring the safe operation of the power system;

[0031] 2. Since the side wall of the support block is a wedge-shaped surface, the further the support block slides out of the support tube, the larger the opening of the open end of the support tube becomes. The purpose of this is that the greater the degree of bending at the cable bend, the greater the resistance it generates, which in turn leads to more heat generated here. At the same time, the greater the degree of bending at the cable bend, the greater the support force it requires.

[0032] The further the support block slides out of the support tube, the greater the degree of the cable bend, and the more cooling gas is needed. One side of the support block is set as a wedge-shaped surface, so that as the support block slides out of the support tube, the opening of the open end of the support tube becomes larger, and the cooling effect on the cable bend becomes better. This allows the support force provided by the support block to the cable bend and the cooling effect of the cooling box on the cable bend to be linked.

[0033] In summary, as the bending degree of the cable increases, the distance that the support block slides out of the support tube increases. Since one side of the support block is a wedge-shaped surface, the distance that the support block slides out of the support tube increases, which can bring two effects at the same time:

[0034] 1. The greater the support force of the support block on the cable bend;

[0035] Second, the larger the opening at one end of the support tube is, the better the cooling effect on the cable bend will be;

[0036] 3. The side of the cooling box close to the cable bending part is set to a curved arc shape, so that multiple support members can cover the bending part of the cable, which is beneficial to improve the supporting effect of these support members on the cable bending part. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present application;

[0038] Figure 2 It is a structural schematic diagram of the embodiment of the present application specifically showing the positional relationship between the cooling box, the support member, the rubber pad, the hoop and the clamp;

[0039] Figure 3 It is a structural schematic diagram of the embodiment of the present application specifically showing the positional relationship between the support block, the support cylinder, the vertical surface, the wedge surface, the driving gear and the knob;

[0040] Figure 4 is a structural schematic diagram showing the position relationship of the vent holes in the embodiment of the present application;

[0041] Figure 5 It is a structural schematic diagram of the embodiment of the present application specifically showing the position relationship of the positioning cavity.

[0042] Figure numerals: 1. protection box; 2. cover plate; 3. cooling box; 4. support member; 41. support block; 42. support cylinder; 5. air vent; 6. vertical surface; 7. wedge-shaped surface; 8. rubber pad; 9. driving gear; 10. knob; 11. ferrule; 12. clamp; 13. positioning cavity. DETAILED DESCRIPTION

[0043] The following is combined with Figure 1 -Attached Figure 5 , further details of this application are given.

[0044] Example:

[0045] The present application embodiment discloses a cable guard plate for a coal mining machine in a coal mine, Figure 1 and Figure 2 , including a protection box 1 and a cover plate 2, both of which are in the shape of a cuboid, the interior of the protection box 1 is hollow, and the cover plate 2 is fastened to the top of the protection box 1 by corresponding fastening bolts. The cable is fixed in the protection box 1 in a "U" shape in the horizontal direction. A cooling box 3 and a plurality of support members 4 are added to the protection box 1, and these support members 4 are evenly distributed around the cooling box 3 at intervals. The cooling box 3 and these support members 4 are all arranged at the bend of the cable, and these support members 4 are located between the bend of the cable and the cooling box 3.

[0046] The cooling box 3 is filled with cooling gas, and the cooling gas is used to cool the bend of the cable. The support members 4 are used to support the bend of the cable. Appropriate support points are added to the bend of the cable through the support members 4, and the support force provided to the bend of the cable by these support points effectively offsets the degree of bending of the cable, so as to effectively reduce the bending of the cable, thereby reducing the wear caused by long-term bending of the cable bend. At the same time, while supporting the bend of the cable, the support members 4 can adjust the degree of cooling of the cable bend by the cooling box 3, which makes the cooling box 3 more flexible in cooling the cable bend, and can cool the cable according to different conditions of the cable bend, which is more conducive to extending the service life of the cable and ensuring the safe operation of the power system.

[0047] During specific installation, the cooling box 3 is welded to one side of the protection box 1. After the cooling box 3 is welded, the support members 4 are evenly spaced and fixed on the cooling box 3. After the cable is installed in the protection box 1, the bends of the cable correspond to the support members 4, and the support members 4 are used to support the bends of the cable, and at the same time, the cooling gas in the cooling box 3 is transported to the bends of the cable for cooling.

[0048] Specifically, refer to Figure 2 , Figure 3 as well as Figure 4 The support member 4 includes a support block 41 and a support cylinder 42. The support cylinder 42 is welded to the side of the cooling box 3 close to the cable. The support cylinder 42 is in a rectangular shape and is hollow inside. The end of the support cylinder 42 away from the cooling box 3 is open, and a row of air holes 5 are formed on the side of the support cylinder 42 close to the cooling box 3. The air holes 5 are used to connect the support cylinder 42 with the cooling box 3. The support block 41 is slidably installed in the support cylinder 42 along the length direction of the support cylinder 42. The support block 41 is used to support the bending part of the cable.

[0049] The support block 41 is installed in the support tube 42 by sliding along the length direction of the support tube 42, so that the support block 41 can slide in the direction close to or away from the cable bend, and then the support blocks 41 can be adjusted to support cables with different bending degrees according to the distance they slide out from the support tube 42. In other words, when facing a cable with a large bending degree, the distance that the support block 41 slides out from the support tube 42 is increased, and the purpose of doing so is to increase the support force of the support block 41 on the cable bend, because the more the support block 41 slides out from the support tube 42, the greater the force of the support block 41 against the cable bend, and then the more it helps to offset the bending force at the cable bend. When facing a cable with a small bending degree, the distance that the support block 41 slides out from the support tube 42 can be reduced. Then, by adjusting the distance that the support block 41 slides out from the support tube 42, these support blocks 41 can adapt to cables with different bending degrees, which is conducive to improving the overall adaptability of the cable guard.

[0050] Further, refer to Figure 3 The support block 41 is in the shape of a right triangle as a whole, with one side being a vertical surface 6 and the other side being a wedge-shaped surface 7, and in the initial state, the top surface of the support block 41 is sealed at the open end of the support tube 42.

[0051] When the cable is not installed in the protection box 1, the support block 41 does not need to slide out of the support tube 42, and the cooling box 3 does not need to cool the cable. In this state, the top surface of the support block 41 is flush with the open end of the support tube 42, and the support tube 42 is sealed by the top surface of the support block 41, effectively preventing the cooling gas in the cooling box 3 from leaking out of the support tube 42.

[0052] When the cable is installed in the protection box 1, the support members 4 on the side of the cooling box 3 correspond to the bending part of the cable. The support block 41 is slid out of the support tube 42 toward the bending part of the cable until the support block 41 abuts against the bending part of the cable. In this state, the support blocks 41 provide reverse support force to the bending part of the cable, which is helpful to offset the bending force of the bending part of the cable.

[0053] At the same time, as the support block 41 slides out toward the direction close to the cable bend, the open end of the support tube 42 gradually opens. At this time, the cooling gas in the cooling box 3 overflows from the support tube 42 through the air vents 5 at the bottom of the support tube 42 and flows to the bend of the cable. Then, the support block 41 supports the bend of the cable while cooling the bend of the cable.

[0054] Since the side wall of the support block 41 is a wedge-shaped surface 7, the further the support block 41 slides out from the support tube 42, the larger the opening of the open end of the support tube 42 becomes. This is because the greater the degree of bending at the cable bend, the greater the resistance generated, which in turn leads to more heat generated there. At the same time, the greater the degree of bending at the cable bend, the greater the supporting force required.

[0055] The further the support block 41 slides out of the support tube 42, the greater the degree of the cable bend, and the more cooling gas is needed. One side of the support block 41 is set as a wedge-shaped surface 7, so that as the support block 41 slides out of the support tube 42, the larger the opening of the open end of the support tube 42, the better the effect of cooling the cable bend. This allows the support force provided by the support block 41 to the cable bend and the cooling effect of the cooling box 3 on the cable bend to be linked.

[0056] In summary, as the bending degree of the cable increases, the support block 41 slides out of the support tube 42 further, and since one side of the support block 41 is a wedge-shaped surface 7, the support block 41 slides out of the support tube 42 further, which can bring two effects at the same time:

[0057] 1. The greater the support force of the support block 41 on the cable bend;

[0058] Second, the larger the opening at one end of the support tube 42 is, the better the cooling effect on the cable bend will be.

[0059] Furthermore, in this embodiment, the side of the cooling box 3 close to the cable bend is in a curved arc shape, and the plurality of support members 4 are evenly distributed at intervals on the side of the cooling box 3 in the curved shape. The purpose of this is that since the cable bend is in an arc shape, the side of the cooling box 3 close to the cable bend is set in a curved arc shape, so that the plurality of support members 4 can cover the cable bend, thereby facilitating the improvement of the effect of the support members 4 on the cable bend.

[0060] Since the side of the cooling box 3 close to the cable bending part is in an arc shape, the distance from the support tube 42 to the cable bending part is inconsistent. In order to effectively ensure the stability of the support member 4 supporting the cable bending part, in this embodiment, the length of each support tube 42 is processed and manufactured accordingly according to the distance to the cable bending part.

[0061] In this embodiment, refer to Figure 2 and Figure 3A rubber pad 8 is installed at one end of the support block 41 close to the cable. The rubber pad 8 is soft in texture. The rubber pad 8 can effectively prevent the support block 41 from directly contacting the cable, thereby facilitating protection of the cable.

[0062] Specifically, refer to Figure 3 A driving gear 9 is added in the horizontal direction of the support tube 42, and the vertical surface 6 of the support block 41 is tooth-shaped. The vertical surface 6 of the support block 41 is meshed and connected with the driving gear 9. By rotating the driving gear 9, the support block 41 can be driven to slide along the length direction of the support tube 42.

[0063] Specifically, refer to Figure 3 and Figure 4 The outer wall of the support tube 42 is provided with a knob 10, and the knob 10 is integrally connected with the driving gear 9 via a rotating shaft. The driving gear 9 is driven to rotate by the knob 10. A corresponding locking rod is installed on the knob 10. When the support block 41 slides to a specified position, the knob 10 is locked by the locking rod, which can effectively ensure that the position of the support block 41 will not be displaced.

[0064] Reference Figure 1 and Figure 5 A plurality of ferrules 11 for fixing the cables are evenly installed on the left and right sides of the protection box 1. After the cables are installed in the protection box 1, the ferrules 11 are sleeved around the cables to effectively ensure the stability of the cable installation.

[0065] Further, refer to Figure 1 and Figure 5 A clamp 12 for clamping and positioning the cable is added inside the hoop 11. The clamp 12 consists of three clamping rods, which are all installed on the inner wall of the hoop 11. A hollow positioning cavity 13 is formed in the middle of the three clamping rods. The cable extends into the positioning cavity 13. The three clamping rods are clamped and distributed on the surrounding side of the cable, and the cable is clamped and positioned by the three clamping rods.

[0066] At the same time, the inner diameter of the positioning cavity 13 in the middle of the three clamping rods can be adjusted. When cables of different specifications and models are inserted into the hoop 11, the inner diameter of the positioning cavity 13 is adaptively adjusted according to the specifications and models of the cables, further increasing the overall adaptability of the clamp 12.

[0067] Specifically, the ends of the three clamping rods are connected to the inner wall of the hoop 11 through a torsion spring, the torsion spring and the inner wall of the hoop 11 are connected through a corresponding connecting rod, and the ends of the three clamping rods away from the torsion springs are connected to each other. The torsion springs are used to hinge the three clamping rods to the inner wall of the hoop 11, so that the clamping rods can rotate in the hoop 11 in the horizontal direction.

[0068] When the diameter of the cable increases, the cable's circumference squeezes the three clamping rods at the same time during the process of inserting the cable into the positioning cavity 13, and driven by the torsion spring, the three clamping rods rotate in a direction away from each other. In this state, the inner diameter of the positioning cavity 13 increases, and can effectively adapt to the cable with an increased diameter. Similarly, when the cable diameter decreases, the three clamping rods also rotate in a direction close to each other driven by the torsion spring, and in this state, the inner diameter of the positioning cavity 13 decreases.

[0069] The sides of the clamping rods that are close to each other are bent in an arc shape in the direction of moving away from each other. The sides of the clamping rods that are close to each other are set to a curved arc shape. When the peripheral side of the cable is clamped and positioned, the side wall of the clamping rod and the peripheral side of the cable can fit more closely, which is beneficial to improve the effect of the three clamping rods on clamping and positioning the cable.

[0070] The implementation principle of a cable guard plate for a coal mining machine in an underground coal mine in the present application embodiment is as follows:

[0071] A cooling box 3 and a plurality of support members 4 are added inside the protection box 1. These support members 4 are evenly spaced around the cooling box 3. The cooling box 3 and these support members 4 are all arranged at the bend of the cable. These support members 4 are located between the bend of the cable and the cooling box 3.

[0072] The cooling box 3 is filled with cooling gas, and the cooling gas is used to cool the bend of the cable. The support members 4 are used to support the bend of the cable. Appropriate support points are added to the bend of the cable through the support members 4, and the support force provided to the bend of the cable by these support points effectively offsets the degree of bending of the cable, so as to effectively reduce the bending of the cable, thereby reducing the wear caused by long-term bending of the cable bend. At the same time, while supporting the bend of the cable, the support members 4 can adjust the degree of cooling of the cable bend by the cooling box 3, which makes the cooling box 3 more flexible in cooling the cable bend, and can cool the cable according to different conditions of the cable bend, which is more conducive to extending the service life of the cable and ensuring the safe operation of the power system.

[0073] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A cable guard plate for a coal mining machine in a coal mine, characterized in that: The invention comprises a protection box (1) and a cover plate (2); the protection box (1) is hollow inside; a cooling box (3) and a plurality of supporting members (4) are additionally provided inside the protection box (1); the plurality of supporting members (4) are evenly distributed around the cooling box (3) at intervals; the cooling box (3) and the plurality of supporting members (4) are both arranged at the bending part of the cable; the cooling box (3) is filled with cooling gas; the cooling box (3) is used to cool down the bending part of the cable; the plurality of supporting members (4) are used to support the bending part of the cable; and the plurality of supporting members (4) regulate the degree of cooling down the bending part of the cable by the cooling box (3) while supporting the bending part of the cable; The support member (4) comprises a support block (41) and a support tube (42); the support tube (42) is fixed on a side of the cooling box (3) close to the cable; the support tube (42) is hollow inside; the end of the support tube (42) away from the cooling box (3) is open; and a ventilation hole (5) is provided through the side of the support tube (42) close to the cooling box (3); the support tube (42) is connected to the cooling box (3) through the ventilation hole (5); the support block (41) is slidably installed in the support tube (42) along the length direction of the support tube (42); the support block (41) is used to support the bending part of the cable; The support block (41) is in the shape of a right triangle as a whole, one side of which is a vertical surface (6) and the other side is a wedge-shaped surface (7), and the top surface of the support block (41) is sealed at the open end of the support tube (42); The support block (41) is adjusted to support cables with different degrees of bending according to the distance it slides out of the support tube (42).

2. A cable guard plate for a coal mining machine in an underground coal mine according to claim 1, characterized in that: A side of the cooling box (3) close to the cable bending position is in an arc shape, and a plurality of the support members (4) are evenly distributed at intervals on the arc-shaped side of the cooling box (3).

3. A cable guard plate for coal mining machine in underground coal mines according to claim 2, characterized in that: A rubber pad (8) is installed at one end of the support block (41) close to the cable.

4. A cable guard plate for coal mining machine in underground coal mines according to claim 3, characterized in that: A driving gear (9) is arranged in the horizontal direction inside the support tube (42); the vertical surface (6) of the support block (41) is tooth-shaped, and the vertical surface (6) is meshed and connected with the driving gear (9); a knob (10) is installed on the outer wall of the support tube (42); the knob (10) and the driving gear (9) are integrally connected via a rotating shaft.

5. The cable guard plate for coal mining machine in underground coal mine according to claim 1, characterized in that: A plurality of hoops (11) for fixing cables are evenly installed at intervals on both left and right sides of the protection box (1).

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