Real-time monitoring device for substation grounding resistance in the coal industry

Abstract

The utility model relates to the technical field of grounding resistance monitoring, and discloses a real-time monitoring device for grounding resistance of a transformer substation in the coal industry, comprising a box body and a grounding resistance monitor, wherein a fixing seat is fixedly connected inside the box body, the grounding resistance monitor is arranged above the fixing seat, a connecting block is fixedly connected to the lower surface of the grounding resistance monitor, the connecting block is inserted into the inside of the fixing seat, a sleeve is fixedly connected to the side of the connecting block, a spring is arranged inside the sleeve, one end of the spring is fixedly connected to the inside of the sleeve, and the other end of the spring is fixedly connected to an insertion block, the insertion block is inserted into the inside of the fixing seat, a fixing sleeve is fixedly connected to the side of the fixing seat, a pushing rod is slidably connected to the inside of the fixing sleeve, and both ends of the pushing rod are fixedly connected to limiting blocks, and by arranging the connecting block and the clamping block, the grounding resistance monitor can be conveniently inserted into the inside of the fixing seat, so that the installation and disassembly of the monitoring device are simpler and faster, and the manpower and time costs are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of grounding resistance monitoring, in particular to a real-time monitoring device for grounding resistance of a transformer substation in the coal industry. Background Art

[0002] Grounding resistance refers to the resistance used to connect the grounding electrode and the grounding system in the grounding system. Its function is to introduce current into the ground through the grounding resistance in the electrical system, thereby ensuring the safe operation of electrical equipment. The size of the grounding resistance will affect the grounding effect of the grounding system, and it is usually required that the resistance value of the grounding resistance is as small as possible.

[0003] In the prior art, the patent application number CN220509038U discloses a ground resistance monitoring device, including an outer box, a control box is fixedly connected to the inner wall of the outer box, a rotating motor is fixedly connected to one side of the control box, a rolling door is arranged at the output end of the rotating motor, a ground resistance monitor is arranged on one side of the rolling door parallel to the outermost side of the control box, one side of the ground resistance monitor is fixedly connected to the inner wall of the outer box, a detection circuit is fixedly connected to one side of the ground resistance monitor, a contact is arranged at the top of the detection circuit, a control rod is arranged above the side of the detection circuit, the control rod is rotatably connected to the top of the outer box, a connecting rod is fixedly connected to one side of the control rod, the upper and lower ends of the connecting rod are fixedly connected to the contacts, a motor circuit is arranged on one side of the connecting rod, and the motor circuit is fixedly connected to the bottom end of the rotating motor. The utility model ensures that the rotating motor and the ground resistance monitor receive power supply at only one place, thereby preventing maintenance personnel from maintaining the ground resistance monitor when power is on.

[0004] With respect to the above scheme, the following technical problems exist: in the substations in the coal industry, grounding resistance is required to protect the safe operation of the equipment, and the grounding resistance needs to be monitored in real time to prevent problems with the grounding resistance. At this time, a real-time monitoring device for grounding resistance of the substations in the coal industry is needed. The real-time monitoring device for grounding resistance in the prior art is mostly fixed when in use, which makes it too troublesome for the staff to inspect or repair it, and it is not convenient to realize the convenient installation and disassembly and maintenance of the detector. Therefore, the real-time monitoring device for grounding resistance in the prior art has the defect of being difficult to disassemble. Utility Model Content

[0005] The purpose of the utility model is to provide a real-time monitoring device for grounding resistance of a substation in the coal industry to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a real-time monitoring device for grounding resistance of a substation in the coal industry, comprising a box body and a grounding resistance monitor, the interior of the box body is fixedly connected with a fixed seat, the grounding resistance monitor is arranged above the fixed seat, the lower surface of the grounding resistance monitor is fixedly connected with a connecting block, the connecting block is inserted into the interior of the fixed seat, the side of the connecting block is fixedly connected with a sleeve, a spring is arranged inside the sleeve, one end of the spring is fixedly connected to the interior of the sleeve, the other end of the spring is fixedly connected with an insertion block, the insertion block is inserted into the interior of the fixed seat, the side of the fixed seat is fixedly connected with a fixed sleeve, the interior of the fixed sleeve is slidably connected with a push rod, both ends of the push rod are fixedly connected with a limiting block, the insertion block is pushed by the push rod, the push rod is pushed, the push rod pushes the insertion block to the side, the spring contracts immediately, and the grounding resistance monitor can be disassembled.

[0007] In a preferred embodiment of the present invention, a support plate is fixedly connected to the inside of the box, and there are two support plates, and a servo motor is fixedly connected to the side of one of the support plates, and a winding roller is arranged between the two support plates, and the output end of the servo motor passes through the support plate and is fixedly connected to one end of the winding roller, and the other end of the winding roller is rotatably connected to the surface of the support plate, and a transmission line is fixedly connected to the side of the ground resistance monitor, and the transmission line is wound around the surface of the winding roller, and the end of the transmission line passes through the box and is fixedly connected to a detection head. When the detection head moves downward, the servo motor is started to drive the winding roller to rotate, and the winding roller loosens the transmission line wound around the surface of the winding roller. By arranging the servo motor and the winding roller, the transmission line of the ground resistance monitor can be wound around the surface of the winding roller, which can effectively prevent the line from being scattered inside the box and reduce the risk of the line being squeezed, pulled or otherwise damaged. This can extend the service life of the transmission line and reduce the cost of maintenance and replacement. At the same time, it can keep the line neat and orderly and avoid line entanglement and confusion.

[0008] In a preferred embodiment of the utility model, a support frame is fixedly connected to the interior of the box body, the support frame is arranged behind the winding roller, an electric push rod is fixedly connected to the upper surface of the support frame, the telescopic end of the electric push rod passes through the support frame and is fixedly connected to a connecting rod, the connecting rod passes through the box body and is slidably connected to the box body, and the bottom end of the connecting rod is fixedly connected to the detection head.

[0009] In a preferred embodiment of the utility model, an opening is provided on the side of the box body, and the inner wall of the opening is rotatably connected to a rotating door panel, the size of the rotating door panel corresponds to the size of the opening, and the side of the box body is rotatably connected to a rotating block, the rotating block is arranged above the rotating door panel, and a stop rod is fixedly connected to the surface of the rotating block.

[0010] Beneficial Effects

[0011] The utility model provides a real-time monitoring device for grounding resistance of a substation in the coal industry, which has the following beneficial effects:

[0012] 1. The real-time monitoring device for grounding resistance of the substation in the coal industry can conveniently insert the grounding resistance monitor into the fixed seat by setting the connection block and the plug-in block, making the installation and removal of the monitoring device easier and faster, saving manpower and time costs, and the grounding resistance monitor can be easily removed by the push rod, which facilitates the inspection and maintenance of the monitoring device, so that problems can be discovered and handled in time to ensure the normal operation of the equipment and reduce downtime.

[0013] 2. The real-time monitoring device for grounding resistance of substations in the coal industry can wind the transmission line of the grounding resistance monitor around the surface of the winding roller by setting a servo motor and a winding roller, which can effectively prevent the line from being scattered inside the box and reduce the risk of the line being squeezed, pulled or otherwise damaged. This can extend the service life of the transmission line and reduce the cost of maintenance and replacement. At the same time, it can keep the line neat and orderly and avoid entanglement and confusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the front section structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the side section structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the three-dimensional front view of the interior of the box of the utility model;

[0017] Figure 4 This is a schematic diagram of the three-dimensional rear view structure of the interior of the box of the utility model;

[0018] Figure 5 For this utility model Figure 1 Enlarged structural diagram at A in the middle.

[0019] In the figure: 1. Box body; 2. Ground resistance monitor; 3. Fixed seat; 4. Connecting block; 5. Sleeve; 6. Spring; 7. Insertion block; 8. Fixed sleeve; 9. Push rod; 10. Limit block; 11. Support plate; 12. Servo motor; 13. Winding roller; 14. Transmission line; 15. Detection head; 16. Support frame; 17. Electric push rod; 18. Connecting rod; 19. Rotating door panel; 20. Rotating block; 21. Stop rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-5 The utility model provides a technical solution: a real-time monitoring device for grounding resistance of a substation in the coal industry, comprising a box body 1 and a grounding resistance monitor 2, the interior of the box body 1 is fixedly connected with a fixing seat 3, the grounding resistance monitor 2 is arranged above the fixing seat 3, the lower surface of the grounding resistance monitor 2 is fixedly connected with a connecting block 4, the connecting block 4 is inserted into the interior of the fixing seat 3, the side of the connecting block 4 is fixedly connected with a sleeve 5, a spring 6 is arranged inside the sleeve 5, one end of the spring 6 is fixedly connected to the interior of the sleeve 5, the other end of the spring 6 is fixedly connected with an insertion block 7, the insertion block 7 is inserted into the interior of the fixing seat 3, the side of the fixing seat 3 is fixedly connected with a fixing sleeve 8, the interior of the fixing sleeve 8 is slidably connected with a pushing rod 9, both ends of the pushing rod 9 are fixedly connected with a limiting block 10, and the insertion block 7 is pushed by the pushing rod 9.

[0022] Push the push rod 9, and the push rod 9 pushes the insertion block 7 to the side, and the spring 6 contracts immediately, and the ground resistance monitor 2 can be removed. By setting the connecting block 4 and the insertion block 7, the ground resistance monitor 2 can be conveniently inserted into the fixing seat 3, making the installation and disassembly of the monitoring device easier and faster, saving manpower and time costs, and the ground resistance monitor 2 can be easily disassembled by the push rod 9, which facilitates the inspection and maintenance of the monitoring device, so that problems can be discovered and dealt with in time, ensuring the normal operation of the equipment and reducing downtime.

[0023] A support plate 11 is fixedly connected to the inside of the box 1. There are two support plates 11, and a servo motor 12 is fixedly connected to the side of one of the support plates 11. A winding roller 13 is arranged between the two support plates 11. The output end of the servo motor 12 passes through the support plate 11 and is fixedly connected to one end of the winding roller 13. The other end of the winding roller 13 is rotatably connected to the surface of the support plate 11. A transmission line 14 is fixedly connected to the side of the ground resistance monitor 2. The transmission line 14 is wound around the surface of the winding roller 13. The end of the transmission line 14 passes through the box 1 and is fixedly connected to a detection head 15.

[0024] When the detection head 15 moves downward, the servo motor 12 is started to drive the winding roller 13 to rotate, and the winding roller 13 loosens the transmission line 14 wound on the surface of the winding roller 13. By setting the servo motor 12 and the winding roller 13, the transmission line 14 of the ground resistance monitor 2 can be wound on the surface of the winding roller 13, which can effectively prevent the line from being scattered inside the box 1 and reduce the risk of the line being squeezed, pulled or otherwise damaged. In this way, the service life of the transmission line 14 can be extended, the maintenance and replacement costs can be reduced, and at the same time, the line can be kept neat and orderly to avoid entanglement and confusion.

[0025] A support frame 16 is fixedly connected to the inside of the box body 1. The support frame 16 is arranged behind the winding roller 13. An electric push rod 17 is fixedly connected to the upper surface of the support frame 16. The telescopic end of the electric push rod 17 passes through the support frame 16 and is fixedly connected to a connecting rod 18. The connecting rod 18 passes through the box body 1 and is slidably connected to the box body 1. The bottom end of the connecting rod 18 is fixedly connected to the detection head 15. The electric push rod 17 is started to push the connecting rod 18 downward, and the connecting rod 18 immediately drives the detection head 15 to be inserted into the ground.

[0026] An opening is provided on the side of the box body 1, and a rotating door panel 19 is rotatably connected to the inner wall of the opening. The size of the rotating door panel 19 corresponds to the size of the opening. A rotating block 20 is rotatably connected to the side of the box body 1. The rotating block 20 is arranged above the rotating door panel 19. A stop rod 21 is fixedly connected to the surface of the rotating block 20. Rotating the rotating block 20 drives the stop rod 21, and the rotating door panel 19 is opened immediately.

[0027] Instructions for use: When the ground resistance monitor 2 needs to be disassembled and repaired, first rotate the rotating block 20 to drive the blocking rod 21, and then the rotating door panel 19 will open, and then push the pushing rod 9, which will push the insertion block 7 to the side, and the spring 6 will shrink, and then the ground resistance monitor 2 can be disassembled.

[0028] When detecting the grounding resistance, the electric push rod 17 is started to push the connecting rod 18 downward, and the connecting rod 18 then drives the detection head 15 to be inserted into the ground. When the detection head 15 moves downward, the servo motor 12 is started to drive the winding roller 13 to rotate, and the winding roller 13 loosens the transmission line 14 wound on the surface of the winding roller 13.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A real-time monitoring device for grounding resistance of a substation in the coal industry, comprising a box (1) and a grounding resistance monitor (2), characterized in that: The box body (1) is fixedly connected to a fixing seat (3) inside, the ground resistance monitor (2) is arranged above the fixing seat (3), the lower surface of the ground resistance monitor (2) is fixedly connected to a connecting block (4), the connecting block (4) is inserted into the fixing seat (3), the side of the connecting block (4) is fixedly connected to a sleeve (5), a spring (6) is arranged inside the sleeve (5), one end of the spring (6) is fixedly connected to the inside of the sleeve (5), the other end of the spring (6) is fixedly connected to an insertion block (7), the insertion block (7) is inserted into the fixing seat (3), the side of the fixing seat (3) is fixedly connected to a fixing sleeve (8), the fixing sleeve (8) is slidably connected to a push rod (9), both ends of the push rod (9) are fixedly connected to limit blocks (10), and the insertion block (7) is pushed by the push rod (9).

2. The real-time monitoring device for grounding resistance of a substation in the coal industry according to claim 1 is characterized by: A support plate (11) is fixedly connected inside the box body (1), and there are two support plates (11), wherein a servo motor (12) is fixedly connected to the side surface of one of the support plates (11).

3. The real-time monitoring device for grounding resistance of a substation in the coal industry according to claim 2 is characterized in that: A winding roller (13) is arranged between the two support plates (11); the output end of the servo motor (12) passes through the support plate (11) and is fixedly connected to one end of the winding roller (13); and the other end of the winding roller (13) is rotatably connected to the surface of the support plate (11).

4. The real-time monitoring device for grounding resistance of a substation in the coal industry according to claim 3 is characterized by: A transmission line (14) is fixedly connected to the side of the ground resistance monitor (2), the transmission line (14) is wound around the surface of the winding roller (13), and the end of the transmission line (14) passes through the box (1) and is fixedly connected to a detection head (15).

5. The real-time monitoring device for grounding resistance of a substation in the coal industry according to claim 4 is characterized by: A support frame (16) is fixedly connected to the interior of the box body (1), the support frame (16) is arranged behind the winding roller (13), and an electric push rod (17) is fixedly connected to the upper surface of the support frame (16).

6. The real-time monitoring device for grounding resistance of a substation in the coal industry according to claim 5 is characterized by: The telescopic end of the electric push rod (17) passes through the support frame (16) and is fixedly connected to a connecting rod (18); the connecting rod (18) passes through the box body (1) and is slidably connected to the box body (1); the bottom end of the connecting rod (18) is fixedly connected to the detection head (15).

7. The real-time monitoring device for grounding resistance of a substation in the coal industry according to claim 1 is characterized by: An opening is provided on the side of the box body (1), and a rotating door plate (19) is rotatably connected to the inner wall of the opening. The size of the rotating door plate (19) corresponds to the size of the opening.

8. The real-time monitoring device for grounding resistance of a substation in the coal industry according to claim 1 is characterized by: A rotating block (20) is rotatably connected to the side of the box body (1); the rotating block (20) is arranged above the rotating door panel (19); and a blocking rod (21) is fixedly connected to the surface of the rotating block (20).

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