Mine electrical equipment protection device and anchor rod drill carriage with same

Abstract

The utility model provides a kind of mine electrical equipment protection device and the anchor rod drill carriage with it, including protective frame, mounting seat and explosion-proof electric cabinet;Protective frame is used to in the mounting surface around the protective space suitable for accommodating explosion-proof electric cabinet;Mounting seat is fixed to the mounting surface and located inside the protective space;Mounting seat includes bottom plate, first buffer plate and second buffer plate;First buffer plate is connected to bottom plate by X direction buffer structure, second buffer plate is connected to first buffer plate by Y direction buffer structure, second buffer plate is equipped with Z direction buffer structure, and explosion-proof electric cabinet is connected to Z direction buffer structure;Wherein, X direction buffer structure, Y direction buffer structure, Z direction buffer structure jointly constitute space three-dimensional buffer system to weaken the vibration transmission of mounting surface to explosion-proof electric cabinet.The mine electrical equipment protection device and the anchor rod drill carriage provided by the utility model can improve the protection effect and maintenance operation efficiency of mine electrical equipment.

Description

Technical Field

[0001] This utility model belongs to the technical field of electrical protection devices, specifically relating to a protective device for mining electrical equipment and an anchor drilling rig equipped with it. Background Technology

[0002] Mining operations commonly utilize machinery such as bolt drilling rigs and tunneling machines. These operations take place in harsh environments with conditions including gas, coal dust, humidity, and mechanical impact. Therefore, the electrical equipment on these machines must be protected against explosions.

[0003] Taking existing anchor drilling rigs as an example, their electrical equipment is typically installed in an explosion-proof electrical control box, which is then integrated with the drive system, such as the hydraulic pump station, within the overall machine protection device. However, connecting the electrical equipment to power requires it to pass through and out of the overall machine protection device. Repairing the electrical equipment, such as replacing cables, requires stopping the machine and opening the overall protection device, resulting in several hours of downtime for each maintenance operation. Furthermore, the explosion-proof box is rigidly fixed to the machine body; in actual operation, machine vibration is directly transmitted to the explosion-proof box, causing the electrical equipment installed inside to be in a state of constant vibration. This is also one of the main reasons for the high failure rate of the electrical equipment.

[0004] In view of this, the current electrical equipment protection devices for mining machinery and equipment still have significant deficiencies in terms of protection function and maintenance operations, and urgently need further improvement. Utility Model Content

[0005] This utility model provides a protective device for mining electrical equipment and an anchor drilling rig with the same, aiming to improve the protection effect and maintenance efficiency of mining electrical equipment.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: Firstly, a protective device for mining electrical equipment is provided, including a protective frame, a mounting base, and an explosion-proof electrical control box; the protective frame is used to fix the device to the mounting surface of the electrical main body and to enclose a protective space suitable for accommodating the explosion-proof electrical control box on the mounting surface; the explosion-proof electrical control box is used to install electrical equipment. The mounting base is fixed to the mounting surface and located inside the protected space; the mounting base includes a base plate, a first buffer plate and a second buffer plate; the first buffer plate is connected to the base plate through an X-axis buffer structure, the second buffer plate is connected to the first buffer plate through a Y-axis buffer structure, the second buffer plate is provided with a Z-axis buffer structure, and the explosion-proof electrical control box is connected to the Z-axis buffer structure. Among them, the X-axis buffer structure, Y-axis buffer structure, and Z-axis buffer structure together form a three-dimensional spatial buffer system to weaken the vibration transmission of the installation facing the explosion-proof electrical control box.

[0007] In conjunction with the first aspect, in one possible implementation, the base plate is provided with a guide rail extending in the X direction, the bottom of the first buffer plate is provided with a slide block slidably connected to the guide rail, and the two ends of the base plate in the X direction are respectively provided with elastic pushing members that push the first buffer plate toward its center; wherein, the elastic pushing members, the slide block and the guide rail together form an X-direction buffer structure.

[0008] In some embodiments, the top surface of the base plate is provided with a cavity, and both ends of the base plate are provided with through holes that communicate with the cavity along the X direction; the bottom surface of the first buffer plate is provided with two load-bearing plates spaced apart along the X direction; wherein, each elastic pusher is respectively disposed in each through hole and elastically abuts against the corresponding load-bearing plate.

[0009] For example, the elastic pusher includes a push rod and a first elastic member. The push rod passes through the through hole and is threaded into the through hole. The first elastic member is located at one end of the through hole facing the cavity, and its two ends abut against the push rod and the support plate, respectively.

[0010] For example, the upper surface of the first buffer plate is provided with multiple sliding grooves extending along the Y direction, and each sliding groove is provided with a second elastic element at both ends; the bottom of the second buffer plate is provided with multiple sliding rails that are respectively slidably embedded in each sliding groove, and the two ends of each sliding rail abut against the corresponding second elastic element; wherein, the second elastic element, the sliding rail and the sliding groove together form a Y-direction buffer structure.

[0011] In one possible implementation, the first buffer plate is connected to limit blocks at both ends of each slide groove, and each limit block is provided with an adjusting rod along the Y direction. The adjusting rod is threaded into the limit block and abuts against the second elastic element.

[0012] In some embodiments, the second buffer plate is provided with multiple rows of columns, and the bottom of the explosion-proof electrical control box is provided with several connecting plates; each row of columns passes through one of the connecting plates along the Z direction and is connected to a nut; each column is provided with at least one third elastic element between the connecting plate and the second buffer plate, and between the nut and the connecting plate; the columns, nuts and third elastic elements together form a Z-direction buffer structure.

[0013] For example, the protective frame has a top plate on its top surface, side plates on both sides in the X direction, a back plate on one side in the Y direction, and an openable door panel on the other side in the Y direction; wherein, the door panel has a viewing window, a protective groove is provided on the side of the viewing window, an emergency stop switch is provided in the protective groove, and the emergency stop switch is electrically connected to the emergency stop circuit inside the explosion-proof electrical control box.

[0014] For example, both side plates are divided into an upper side plate and a lower side plate. The opposite edges of the upper side plate and the lower side plate are slotted to form an operation window. A blocking plate is provided on the operation window. The blocking plate has a wire hole suitable for cable to pass through along the dividing line of the upper side plate and the lower side plate, and the blocking plate is divided into two halves along the center of the wire hole.

[0015] The beneficial effects of the mining electrical equipment protection device provided by this utility model are as follows: Compared with the prior art, the mining electrical equipment protection device of this utility model has a separate protective frame for the explosion-proof electrical control box to prevent collisions. On the one hand, it no longer relies on the whole machine protection device, and on the other hand, it facilitates the maintenance and wiring of the explosion-proof electrical control box, which helps to reduce maintenance time and improve maintenance efficiency.

[0016] The explosion-proof electrical control box is fixed in the protective space inside the protective frame by a mounting base. It can weaken the X-axis vibration transmission from the electrical user, such as an anchor drilling rig, to the explosion-proof electrical control box by using the X-axis buffer structure between the first buffer plate and the base plate; weaken the Y-axis vibration transmission from the electrical user to the explosion-proof electrical control box by using the Y-axis buffer structure between the second buffer plate and the first buffer plate; and weaken the Z-axis vibration transmission from the electrical user to the explosion-proof electrical control box by using the Z-axis buffer structure between the explosion-proof electrical control box and the second buffer plate. This forms a three-dimensional spatial buffer system to weaken vibration transmission and prevent the vibration of the electrical user, such as an anchor drilling rig drilling anchor holes or a tunneling machine cutting rock strata, from being directly transmitted to the explosion-proof electrical control box. This improves the vibration protection effect and helps reduce the failure rate of electrical equipment installed inside the explosion-proof electrical control box.

[0017] Secondly, this utility model embodiment also provides an anchor drilling rig, including the above-mentioned mining electrical equipment protection device.

[0018] The beneficial effects of the anchor drilling rig provided by this utility model are as follows: Compared with the prior art, the anchor drilling rig of this utility model adopts the above-mentioned mining electrical equipment protection device, which facilitates the maintenance and wiring of the explosion-proof electrical control box, helps to reduce maintenance time and improve maintenance efficiency; it can form a spatial three-dimensional buffer system to weaken vibration transmission, and avoids the vibration of the main electrical components, such as the anchor drilling machine drilling anchor holes or the tunneling machine cutting rock layers, from being directly transmitted to the explosion-proof electrical control box, thereby improving the vibration protection effect and helping to reduce the failure rate of electrical equipment installed inside the explosion-proof electrical control box. Attached Figure Description

[0019] Figure 1 A three-dimensional structural schematic diagram of the mining electrical equipment protection device provided in this embodiment of the utility model; Figure 2 A three-dimensional structural diagram of the mining electrical equipment protection device after the protective frame has been removed, provided as an embodiment of this utility model; Figure 3 This is a partial cross-sectional view of the base used in an embodiment of the present utility model; Figure 4 This is a three-dimensional structural diagram of the first buffer plate used in an embodiment of the present utility model; Figure 5 This is a schematic diagram of the Y-axis buffer structure used in the embodiments of this utility model; Figure 6 for Figure 5 A magnified schematic diagram of the partial structure at point A in the middle; Figure 7 This is a three-dimensional structural diagram of the second buffer plate used in an embodiment of the present utility model; Figure 8 A three-dimensional structural schematic diagram of a mining electrical equipment protection device provided in another embodiment of this utility model; Figure 9 This is a three-dimensional structural diagram of the blocking plate used in the embodiment of this utility model.

[0020] In the diagram: 10. Protective frame; 11. Top plate; 12. Side plate; 121. Upper side plate; 122. Lower side plate; 123. Operating window; 124. Blocking plate; 1241. Wiring hole; 13. Door panel; 131. Viewing window; 132. Protective groove; 133. Emergency stop switch; 20. Mounting base; 21. Base plate; 211. Guide rail; 212. Elastic pusher; 2121. Push rod; 2122. First elastic element; 213. Cavity; 22 221. First buffer plate; 222. Slide block; 223. Support plate; 224. Slide groove; 225. Second elastic element; 226. Limiting block; 227. Adjusting rod; 23. Second buffer plate; 231. Slide rail; 232. Column; 233. Nut; 234. Third elastic element; 24. X-axis buffer structure; 25. Y-axis buffer structure; 26. Z-axis buffer structure; 30. Explosion-proof electrical control box; 31. Connecting plate; 40. Mounting surface; 50. Cable. Detailed Implementation

[0021] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] It should be noted that when an element is referred to as being "set on" or "connected to" another element, it can be directly on or indirectly on the other element. It should be understood that the terms "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0023] In the description of this application, "X direction", "Y direction" and "Z direction" refer to the three-dimensional spatial directions that are perpendicular to each other in the space. Specifically, for the main body of the power supply such as the anchor drilling machine, "X direction" can be understood as its front-to-back length direction, "Y direction" can be understood as its left-to-right width direction, and "Z direction" can be understood as its up-to-down height direction.

[0024] It should be understood that, in the description of this application, the power-consuming entity refers to the mechanical equipment that operates underground, such as anchor drilling rigs or tunneling machines. The following embodiments will use anchor drilling rigs as an example for illustration.

[0025] In the existing technology, explosion-proof electrical control boxes refer to those that meet the safety operation requirements in explosive environments. They generally have explosion-proof and intrinsically safe structures. As structural components with industry standard requirements, they will not be described in detail here.

[0026] Please refer to the following: Figures 1 to 9The present invention will now describe the protective device for mining electrical equipment. The protective device for mining electrical equipment includes a protective frame 10, a mounting base 20, and an explosion-proof electrical control box 30. The protective frame 10 is fixed to the mounting surface 40 of the main electrical component and encloses a protective space suitable for accommodating the explosion-proof electrical control box 30 on the mounting surface 40. The explosion-proof electrical control box 30 is used to install electrical equipment. The mounting base 20 is fixed to the mounting surface 40 and located inside the protective space. The mounting base 20 includes a base plate 21, a first buffer plate 22, and a second buffer plate 23. The first buffer plate 22 is connected to the base plate 21 through an X-axis buffer structure 24, and the second buffer plate 23 is connected to the first buffer plate 22 through a Y-axis buffer structure 25. The second buffer plate 23 is provided with a Z-axis buffer structure 26, and the explosion-proof electrical control box 30 is connected to the Z-axis buffer structure 26. The X-axis buffer structure 24, the Y-axis buffer structure 25, and the Z-axis buffer structure 26 together form a spatial three-dimensional buffer system to weaken the vibration transmission from the mounting surface 40 to the explosion-proof electrical control box 30.

[0027] It should be noted that in this embodiment, the protective frame 10 can be a simple frame structure forming a completely open protective space to provide collision protection for the explosion-proof electrical control box 30, such as... Figure 1 As shown, a relatively enclosed or semi-enclosed protective space can also be obtained by installing a protective plate on the frame structure. This provides additional dust and water protection for the explosion-proof electrical control box 30, in addition to providing collision protection. Figure 8 As shown.

[0028] It should be understood that in this embodiment, the X-axis buffer structure 24, Y-axis buffer structure 25, and Z-axis buffer structure 26 can all provide buffering in the corresponding directions based on elastic elements such as springs or disc springs, or based on flexible elements such as rubber blocks or metal-rubber vulcanized parts. No specific limitations are made in this embodiment. The spatial three-dimensional buffer system constructed through the above three-directional buffer structures can weaken vibrations in any spatial direction. Vibrations generated on the mounting surface 40 of an electrical component, such as an anchor drilling rig, are weakened by this spatial three-dimensional buffer system before being transmitted to the explosion-proof electrical control box 30. Especially for high-frequency vibrations, the vibration frequency is greatly reduced when it reaches the explosion-proof electrical control box 30 after passing through the spatial three-dimensional buffer system (for low-frequency vibrations with large amplitudes, the spatial three-dimensional buffer system may not be able to reduce the vibration frequency, but it can significantly reduce the amplitude based on the buffering effect, thus achieving the same vibration weakening effect). This can avoid damage to electrical equipment caused by high-frequency vibrations and provide vibration protection for the electrical equipment installed in the explosion-proof electrical control box 30.

[0029] Compared with the prior art, the mining electrical equipment protection device provided in this embodiment provides a separate protective frame 10 for the explosion-proof electrical control box 30 to provide anti-collision protection. On the one hand, it no longer relies on the whole machine protection device, and on the other hand, it facilitates the maintenance and wiring of the explosion-proof electrical control box 30, which helps to reduce maintenance time and improve maintenance efficiency.

[0030] The explosion-proof electrical control box 30 is fixed in the protective space inside the protective frame 10 by the mounting base 20. It can weaken the X-direction vibration transmission from the electrical user, such as the anchor drilling machine, to the explosion-proof electrical control box 30 by using the X-direction buffer structure 24 between the first buffer plate 22 and the base plate 21, weaken the Y-direction vibration transmission from the electrical user to the explosion-proof electrical control box 30 by using the Y-direction buffer structure 25 between the second buffer plate 23 and the first buffer plate 22, and weaken the Z-direction vibration transmission from the electrical user to the explosion-proof electrical control box 30 by using the Z-direction buffer structure 26 between the explosion-proof electrical control box 30 and the second buffer plate 23. This forms a three-dimensional spatial buffer system to weaken vibration transmission and prevent the vibration of the electrical user, such as the anchor drilling machine drilling anchor holes or the tunneling machine cutting rock strata, from being directly transmitted to the explosion-proof electrical control box 30, thereby improving the vibration protection effect and helping to reduce the failure rate of electrical equipment installed inside the explosion-proof electrical control box 30.

[0031] As one specific implementation of the aforementioned X-axis buffer structure 24, please refer to... Figures 2 to 4 It is understood that the base plate 21 is provided with a guide rail 211 extending in the X direction, and the bottom of the first buffer plate 22 is provided with a slide block 221 slidably connected to the guide rail 211. The two ends of the base plate 21 in the X direction are respectively provided with elastic pushing members 212 that push the first buffer plate 22 towards its center; wherein, the elastic pushing member 212, the slide block 221 and the guide rail 211 together form an X-direction buffer structure 24.

[0032] The guide rail 211 can be a circular arc cross-section structure with an arc greater than 180 degrees. The end face shape of the slide 221 matches that of the guide rail 211, thereby enabling the first buffer plate 22 to obtain the freedom of movement in the X direction based on the cooperation between the slide 221 and the guide rail 211. On this basis, the elastic pushers 212 at both ends of the base plate 21 apply relative elastic pushers to the first buffer plate 22, which is equivalent to the elastic pushers 212 at both ends of the base plate 21 applying elastic clamping force to the first buffer plate 22. This forms an X-direction elastic constraint on the first buffer plate 22. When the X-direction vibration of the mounting surface 40 is transmitted to the base plate 21, the elastic pushers 212 undergo forced expansion and contraction. Since the forced expansion and contraction of the elastic pushers 212 lags behind the vibration frequency of the base plate 21, the X-direction vibration frequency transmitted to the first buffer plate 22 decreases and the amplitude also decreases relatively, thereby weakening the X-direction vibration ultimately transmitted to the explosion-proof electrical control box 30.

[0033] In some embodiments, see Figure 3The bottom plate 21 has a cavity 213 on its top surface and through holes that connect to the cavity 213 along the X direction at both ends of the bottom plate 21. The bottom surface of the first buffer plate 22 has two load-bearing plates 222 spaced apart along the X direction. Each elastic pusher 212 is respectively set in each through hole and elastically abuts against the corresponding load-bearing plate 222.

[0034] By creating a recess 213 on the top surface of the base plate 21 to allow the load-bearing plate 222 at the bottom of the first buffer plate 22 to extend into, the overall structural height can be compressed, saving space in the Z direction. The elastic jacking member 212 is set in the perforation to apply an elastic jacking force to the load-bearing plate 222, which not only makes the structure compact but also facilitates assembly.

[0035] For some possible implementations, please refer to [link / reference]. Figure 3 The elastic pusher 212 includes a push rod 2121 and a first elastic member 2122. The push rod 2121 passes through the through hole and is threaded into the through hole. The first elastic member 2122 is located at one end of the through hole facing the cavity 213, and its two ends abut against the push rod 2121 and the support plate 222 respectively.

[0036] The compression of the first elastic element 2122 (like a spring) can be adjusted by turning the top rod 2121, thereby adjusting the elastic force of the first elastic element 2122 on the support plate 222. This allows for adjustment of the stiffness of the X-direction buffer structure 24 for different working conditions to prevent the natural frequency of the first elastic element 2122 from entering the X-direction vibration frequency range of the current working condition and causing resonance. Specifically, when the anchor drilling rig is drilling anchor holes in hard rock, high-frequency vibrations are easily generated. Adjusting the top rod 2121 reduces the elastic force of the first elastic element 2122 on the support plate 222, thereby reducing the connection stiffness of the first buffer plate 22 in the X direction, which helps reduce the frequency of high-frequency vibrations. Conversely, when the rock layer where the anchor drilling rig is working is of low hardness, the generated vibration frequency is low. In this case, adjusting the top rod 2121 increases the elastic force of the first elastic element 2122 on the support plate 222, thereby increasing the connection stiffness of the first buffer plate 22 in the X direction, which helps reduce the amplitude of low-frequency vibrations.

[0037] As an optional implementation of the aforementioned Y-axis buffer structure 25, please refer to... Figures 4 to 6 Understandably, the upper surface of the first buffer plate 22 is provided with multiple sliding grooves 223 extending along the Y direction, and each sliding groove 223 has a second elastic element 224 at both ends; the bottom of the second buffer plate 23 is provided with multiple sliding rails 231 that are respectively slidably embedded in each sliding groove 223, and the two ends of each sliding rail 231 abut against the corresponding second elastic element 224; wherein, the second elastic element 224, the sliding rail 231 and the sliding groove 223 together form a Y-direction buffer structure 25.

[0038] The slide rail 231 and slide groove 223 can adopt a dovetail-shaped, inverted T-shaped, or arc-shaped cross-section with an arc greater than 180 degrees. This can constrain the second buffer plate 23 in all directions except the Y direction, allowing the second buffer plate 23 to move relative to the first buffer plate 22 only in the Y direction. This not only compresses the Z-direction space but also allows the second elastic elements 224 at both ends of the slide groove 223, such as springs, disc springs, or vulcanized rubber pillars, to elastically push the slide rail 231, thereby forming an elastic clamping of the slide rail 231 in the Y direction. This weakens the Y-direction vibration transmitted from the first buffer plate 22 to the second buffer plate 23, and thus reduces the Y-direction vibration ultimately transmitted to the explosion-proof electrical control box 30.

[0039] Specifically, such as Figure 6 As shown, the first buffer plate 22 is connected to two ends of each slide groove 223. Each limit block 225 is provided with an adjusting rod 2251 along the Y direction. The adjusting rod 2251 is threadedly engaged with the limit block 225 and abuts against the second elastic member 224.

[0040] The elastic thrust of the second elastic element 224 on the slide rail 231 can be adjusted by rotating the adjusting rod 2251, thereby adjusting the Y-direction connection stiffness of the second buffer plate 23 to meet the buffering effect for different vibration frequency ranges. Specifically, for hard rock conditions that are prone to high-frequency vibration, the elastic thrust can be reduced to decrease the stiffness. On the one hand, this can prevent the natural frequency from entering the high-frequency vibration range and causing resonance problems. On the other hand, the lower stiffness can reduce the transmission of vibration frequency, so that the vibration frequency transmitted from the first buffer plate 22 to the second buffer plate 23 decreases. For soft rock conditions, the elastic thrust of the second elastic element 224 can be appropriately increased to improve the Y-direction connection stiffness. This allows for the reduction of the amplitude transmitted to the second buffer plate 23 when there is a large amplitude Y-direction vibration by using a higher elastic thrust.

[0041] In some embodiments, combined with Figure 2 and Figure 7 Understandably, the Z-direction buffer structure 26 described above is as follows: multiple rows of columns 232 are provided on the second buffer plate 23, and several connecting plates 31 are provided at the bottom of the explosion-proof electrical control box 30; each row of columns 232 passes through one of the connecting plates 31 in the Z direction and is connected to a nut 233; each column 232 is provided with at least one third elastic element 234 between the connecting plate 31 and the second buffer plate 23, and between the nut 233 and the connecting plate 31; the columns 232, the nuts 233 and the third elastic elements 234 together form the Z-direction buffer structure 26.

[0042] The column 232 can be a high-strength screw embedded in a pre-set hole on the second buffer plate 23 and welded in place. The third elastic element 234 can be a vulcanized rubber sleeve or a disc spring. The third elastic element 234, located on the upper and lower sides of the connecting plate 31, achieves elastic clamping of the connecting plate 31. The elastic clamping force of the third elastic element 234 on the connecting plate 31 can be adjusted by rotating the nut 233, thereby adjusting the Z-axis connection stiffness of the explosion-proof electrical control box 30, thus ensuring a buffering effect for different vibration frequency ranges. The Z-axis vibration of the second buffer plate 23 can be buffered by the elastic force of the third elastic element 234, thereby reducing the vibration frequency and amplitude transmitted to the explosion-proof electrical control box 30.

[0043] It should be noted that, based on the X-axis buffer structure 24, Y-axis buffer structure 25, and Z-axis buffer structure 26 mentioned in the above embodiments, when working on hard rock conditions prone to high-frequency vibration, the structural stiffness of the three structures can be reduced to make their respective natural frequencies avoid the vibration frequency range, thereby avoiding resonance problems. At the same time, the focus is on reducing the vibration frequency to avoid the damage of high-frequency vibration to the electrical equipment installed in the explosion-proof electrical control box 30. When working on soft rock strata with lower vibration frequencies, the structural stiffness of the three structures can be appropriately increased to reduce the amplitude ultimately transmitted to the explosion-proof electrical control box 30, which can also improve the vibration protection effect.

[0044] It is important to understand that you should refer to [the relevant documentation / reference]. Figure 8 In this embodiment, the top surface of the protective frame 10 is provided with a top plate 11, side plates 12 are connected to both sides in the X direction, a back plate is connected to one side in the Y direction, and an openable door plate 13 is connected to the other side in the Y direction; wherein, the door plate 13 is provided with a viewing window 131, a protective groove 132 is provided on the side of the viewing window 131, an emergency stop switch 133 is provided in the protective groove 132, and the emergency stop switch 133 is electrically connected to the emergency stop circuit inside the explosion-proof electrical control box 30.

[0045] Except for the bottom surface, the protective frame 10 is shielded on all other sides, thus creating a relatively enclosed protective space. This prevents the explosion-proof electrical control box 30 from being exposed and improves its dustproof and waterproof performance. The viewing window 131 can be a tempered explosion-proof glass installed after an opening in the door panel 13. Through the viewing window 131, it is easy to observe the visible components on the explosion-proof electrical control box 30, such as various electrical dials. At the same time, the emergency stop switch 133 is set in the protective groove 132 on the door panel 13. On the one hand, the emergency stop switch 133 can be operated without opening the door panel 13, improving convenience. On the other hand, it can prevent the emergency stop switch 133 from protruding from the surface of the door panel 13, thus avoiding accidental activation or collision damage.

[0046] For convenient connection, maintenance, and replacement of cable 50 in the explosion-proof electrical control box 30, please refer to... Figure 8 and Figure 9Both side plates 12 are divided vertically to form an upper side plate 121 and a lower side plate 122. The opposite edges of the upper side plate 121 and the lower side plate 122 are slotted to form an operation window 123. A blocking plate 124 is provided on the operation window 123. The blocking plate 124 is provided with a wire hole 1241 suitable for the cable 50 to pass through along the dividing line of the upper side plate 121 and the lower side plate 122. The blocking plate 124 is divided into two halves along the center of the wire hole 1241.

[0047] When the cable 50 needs to be replaced, the upper side plate 12 can be removed separately, and then the two halves of the blocking plate 124 can be taken out from the operating window 123. At this time, sufficient operating space can be formed. After the cable 50 is replaced, the two halves are inserted into the corresponding parts of the operating window 123, and then the upper side plate 12 can be reinstalled. The operation is simple and convenient, which can greatly improve the efficiency of maintenance and inspection.

[0048] Specifically, such as Figure 9 As shown, the edges of the aforementioned halves are provided with slots suitable for engaging with the edges of the operating window 123. This not only ensures connection stability after the two halves are embedded in the operating window 123, but also facilitates disassembly and assembly. Both halves of the blocking plate 124 can be made of rubber injection molded parts with hard edges and softer parts near the wire hole 1241. This ensures connection stability while allowing the wire hole 1241 to clamp the cable 50. Furthermore, it can deform with the movement of the cable 50 in the event of vibration, thereby ensuring the reliable sealing of the operating window 123.

[0049] Based on the same inventive concept, combined with Figures 1 to 9 It is understood that this application also provides an anchor drilling rig, including the above-mentioned mining electrical equipment protection device.

[0050] Compared with the prior art, the anchor drilling rig provided in this embodiment has the above-mentioned mining electrical equipment protection device on its mounting surface 40 as the main power-consuming body. This facilitates the maintenance and wiring of the explosion-proof electrical control box 30, which helps to reduce maintenance time and improve maintenance efficiency. It can form a spatial three-dimensional buffer system to weaken vibration transmission and prevent the vibration of the main power-consuming body, such as the anchor drilling rig drilling anchor holes or the tunneling machine cutting rock strata, from being directly transmitted to the explosion-proof electrical control box 30, thereby improving the vibration protection effect and helping to reduce the failure rate of electrical equipment installed inside the explosion-proof electrical control box 30.

[0051] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A protective device for electrical equipment used in mining, characterized in that, It includes a protective frame, a mounting base, and an explosion-proof electrical control box; the protective frame is used to fix it to the mounting surface of the electrical main body and to enclose a protective space suitable for accommodating the explosion-proof electrical control box on the mounting surface; the explosion-proof electrical control box is used to install electrical equipment. The mounting base is fixed to the mounting surface and located inside the protective space; the mounting base includes a base plate, a first buffer plate, and a second buffer plate; the first buffer plate is connected to the base plate through an X-axis buffer structure, the second buffer plate is connected to the first buffer plate through a Y-axis buffer structure, the second buffer plate is provided with a Z-axis buffer structure, and the explosion-proof electrical control box is connected to the Z-axis buffer structure. The X-axis buffer structure, the Y-axis buffer structure, and the Z-axis buffer structure together form a three-dimensional spatial buffer system to weaken the vibration transmission of the installation surface to the explosion-proof electrical control box. The base plate is provided with a guide rail extending in the X direction, and the bottom of the first buffer plate is provided with a slide block slidably connected to the guide rail. The two ends of the base plate in the X direction are respectively provided with elastic pushing members that push the first buffer plate toward its center; wherein, the elastic pushing members, the slide block and the guide rail together form the X-direction buffer structure. The upper surface of the first buffer plate is provided with multiple sliding grooves extending along the Y direction, and each sliding groove is provided with a second elastic element at both ends; the bottom of the second buffer plate is provided with multiple sliding rails that are respectively slidably embedded in each of the sliding grooves, and the two ends of each sliding rail abut against the corresponding second elastic element; wherein, the second elastic element, the sliding rail and the sliding groove together form the Y-direction buffer structure; The second buffer plate is provided with multiple rows of columns, and the bottom of the explosion-proof electrical control box is provided with several connecting plates; each row of columns passes through one of the connecting plates along the Z direction and is connected to a nut; each column is provided with at least one third elastic element between the connecting plate and the second buffer plate, and between the nut and the connecting plate; the columns, the nut and the third elastic element together form the Z-direction buffer structure.

2. The mining electrical equipment protection device as described in claim 1, characterized in that, The top surface of the base plate is provided with a cavity, and both ends of the base plate are provided with through holes that communicate with the cavity along the X direction; the bottom surface of the first buffer plate has two load-bearing plates distributed at intervals along the X direction; wherein, each of the elastic pushers is respectively disposed in each of the through holes and elastically abuts against the corresponding load-bearing plate.

3. The protective device for mining electrical equipment as described in claim 2, characterized in that, The elastic pusher includes a push rod and a first elastic element. The push rod passes through the through hole and is threaded into the through hole. The first elastic element is located at one end of the through hole facing the cavity, and its two ends abut against the push rod and the load-bearing plate, respectively.

4. The protective device for mining electrical equipment as described in claim 1, characterized in that, The first buffer plate is connected to two ends of each of the slides, and each of the limit blocks is provided with an adjusting rod along the Y direction. The adjusting rod is threaded into the limit block and abuts against the second elastic element.

5. The protective device for mining electrical equipment as described in any one of claims 1-4, characterized in that, The protective frame has a top plate on its top surface, side plates on both sides in the X direction, a back plate on one side in the Y direction, and an openable door panel on the other side in the Y direction; wherein, the door panel has a viewing window, a protective groove is provided on the side of the viewing window, an emergency stop switch is provided in the protective groove, and the emergency stop switch is electrically connected to the emergency stop circuit inside the explosion-proof electrical control box.

6. The protective device for mining electrical equipment as described in claim 5, characterized in that, Both side plates are divided into an upper side plate and a lower side plate. The opposite edges of the upper side plate and the lower side plate are slotted to form an operation window. A blocking plate is provided on the operation window. The blocking plate is provided with a cable hole suitable for cable passage along the dividing line of the upper side plate and the lower side plate. The blocking plate is divided into two halves along the center of the cable hole.

7. Anchor bolt drilling rig, characterized in that, Includes the mining electrical equipment protection device as described in any one of claims 1-6.

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