Live-line fastening tools for horizontal screws of substation equipment

Abstract

The invention discloses a horizontal screw live tightening tool for transformer substation equipment, comprising a bottom plate, a telescopic outer tube fixedly arranged at the center of the upper side wall of the bottom plate, a telescopic inner tube vertically slidably connected to the upper end opening of the telescopic outer tube, and the lower end of the telescopic inner tube is inserted into the telescopic outer tube, the side wall of the telescopic outer tube is provided with strip openings symmetrically positioned, each of the strip openings is provided with a corresponding second adjusting bolt, the diameter of the head of each second adjusting bolt is greater than the width of the strip opening, and each second adjusting bolt penetrates the corresponding strip opening inwardly and is threadedly connected to the lower end of the side wall of the telescopic inner tube, a fixing ear is fixedly arranged at the top of the telescopic inner tube, and a micro drive motor is fixedly arranged on the side wall of one side of the fixing ear. The invention is easy to operate and has a simple structure, and the operator can operate on the ground without climbing the live equipment, and screws of different heights and different models can be tightened through insulating operating rods of different heights.

Description

Technical Field

[0001] The invention relates to the technical field of screw fastening, in particular to a horizontal screw live fastening tool for transformer substation equipment. Background Art

[0002] Equipment at voltage levels of 35kV and below in substations may experience abnormalities such as heating due to loose screws at some connections. The common treatment method is to power off the equipment for processing. The power outage process will involve other nearby equipment, thereby increasing maintenance time and operating costs. If only loose screws cause power outages or operations on other equipment, the possibility of equipment failure or abnormality in the entire station will increase. Therefore, a tool that can safely perform live tightening of horizontal screws is needed to perform live processing of screws in various locations while ensuring safety. Summary of the invention

[0003] The purpose of the present invention is to solve the defect in the prior art that there is a lack of tools capable of fastening horizontal screws of substation equipment under live conditions, thereby proposing a tool for fastening horizontal screws of substation equipment under live conditions.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A horizontal screw live tightening tool for substation equipment comprises a base plate, a telescopic outer tube is fixedly arranged at the center of the upper side wall of the base plate, a telescopic inner tube is vertically slidably connected to the opening at the upper end of the telescopic outer tube, and the lower end of the telescopic inner tube is inserted into the telescopic outer tube, the side wall of the telescopic outer tube is provided with symmetrical strip openings, each of the strip openings is provided with a corresponding second adjusting bolt, the diameter of the head of each second adjusting bolt is larger than the width of the strip opening, and each second adjusting bolt is inwardly penetrated through the corresponding strip opening and is threadedly connected to the lower end of the side wall of the telescopic inner tube, a fixing ear is fixedly arranged at the top of the telescopic inner tube, and a side wall on one side of the fixing ear A micro-drive motor is fixedly arranged, and the output shaft of the micro-drive motor is fixedly connected to a rotating rod, and the rotating rod passes through a fixed ear and is fixedly connected to a rectangular frame, and a matching bearing is arranged at the connection between the fixed ear and the rotating rod, a first adjusting bolt is threadedly connected to a side wall on one side of the rectangular frame, and the first adjusting bolt passes through the side wall of the rectangular frame inwardly and is rotatably connected to a corresponding upper connecting plate, the upper connecting plate and the inner side wall of the rectangular frame are also connected by two limiting telescopic rods, and an upper clamping plate is fixedly arranged on one end of the upper connecting plate away from the first adjusting bolt, and a through hole corresponding to the first adjusting bolt is arranged on the side wall on the other side of the rectangular frame, and a manual clamping device is arranged in the through hole.

[0006] Preferably, the manual clamping device comprises a lower connecting plate, a rack and a lower clamping plate, the lower clamping plate is fixedly arranged on the upper side wall of the lower connecting plate, and the lower side wall of the lower connecting plate is fixedly connected to the rack, and the rack is arranged through a through hole, and a first telescopic rod is symmetrically arranged between the lower connecting plate and the inner side wall of the rectangular frame, two ends of the two first telescopic rods are respectively against the lower connecting plate and the inner side wall of the rectangular frame, and each first telescopic rod is sleeved with a corresponding first spring, the first spring is located between the lower connecting plate and the inner side wall of the rectangular frame, a hollow cavity is arranged in the side wall of the rectangular frame, a clamping plate corresponding to the rack is arranged in the hollow cavity, a side wall of the clamping plate away from the rack is connected to the inner side wall of the hollow cavity by a second telescopic rod symmetrically positioned, and each second telescopic rod is sleeved with a corresponding second spring, each second spring is located between the clamping plate and the inner wall of the hollow cavity, and a pull rope is fixedly connected to the side wall of the clamping plate away from the rack, the pull rope is arranged to penetrate the side wall of the rectangular frame outwardly, and a pull handle is arranged at one end of the pull rope away from the clamping plate.

[0007] Preferably, a plurality of sets of evenly distributed universal wheels are fixedly provided on the lower side wall of the bottom plate, and each universal wheel is a brake-stop universal wheel.

[0008] Preferably, the outer surfaces of the telescopic inner tube and the telescopic outer tube are plated with a rust-proof coating of uniform thickness.

[0009] Preferably, the rectangular frame is configured to be a flat U-shape, and the outer surface of the rectangular frame is polished and smooth.

[0010] Preferably, a limit plate is fixedly provided at one end of the rack away from the lower connecting plate.

[0011] Preferably, the side wall of the rectangular frame is provided with a steering wheel corresponding to the position of the pull rope.

[0012] Preferably, the outer surface of the pull rope is wrapped with a wear-resistant layer of uniform thickness, and the outer surface of the handle is wrapped with a soft sponge.

[0013] Preferably, the rack and the clamping plate are both provided with anti-slip grooves.

[0014] The beneficial effects of the present invention are: it can realize live tightening of horizontal screws of various parts of substation equipment, especially screws at a higher place from the ground, under the premise of fully ensuring the safety of live operation. Operators can operate on the ground without climbing live equipment. Through insulating operating rods of different heights, screws of different heights and different models can be tightened. There is no need to replace fastening tools of different specifications back and forth. The operation is easy and the structure is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic structural diagram of a horizontal screw live-tightening tool for substation equipment proposed by the present invention;

[0016] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0017] Figure 3 for Figure 1 The enlarged view of point B in the middle;

[0018] Figure 4 for Figure 1 Enlarged view of point C in the middle.

[0019] In the figure: 1 bottom plate, 2 universal wheel, 3 telescopic outer tube, 4 telescopic inner tube, 5 fixing ear, 6 micro drive motor, 7 rotating rod, 8 rectangular frame, 9 first adjusting bolt, 10 upper clamping plate, 11 lower clamping plate, 12 limiting telescopic rod, 13 rack, 14 first telescopic rod, 15 first spring, 16 hollow cavity, 17 pull rope, 18 pull handle, 19 limiting plate, 20 strip opening, 21 second adjusting bolt, 22 second telescopic rod, 23 second spring, 24 clamping plate, 25 steering wheel. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Reference Figure 1-4, a horizontal screw live fastening tool for substation equipment, comprising a base plate 1, a plurality of sets of uniformly distributed universal wheels 2 are fixedly arranged on the lower side wall of the base plate 1, and each universal wheel 2 is a brake universal wheel 2. By arranging a plurality of universal wheels on the lower side of the base plate 1, it is convenient to move the device of the present invention without manual handling. The brake universal wheel belongs to a very mature prior art, and the present invention will not elaborate on it. A telescopic outer tube 3 is fixedly arranged at the center of the upper side wall of the base plate 1, and a telescopic inner tube 4 is vertically slidably connected to the upper end opening of the telescopic outer tube 3, and the lower end of the telescopic inner tube 4 is inserted into the telescopic outer tube 3, and the telescopic inner The outer surfaces of the tube 4 and the telescopic outer tube 3 are plated with a layer of anti-rust coating of uniform thickness. The telescopic outer tube 3 and the telescopic inner tube 4 are exposed to the outside world for a long time and are prone to rust. The setting of the anti-rust coating improves the corrosion resistance of the two, thereby improving the service life of the telescopic outer tube 3 and the telescopic inner tube 4. The side wall of the telescopic outer tube 3 is provided with symmetrical strip openings 20, and each strip opening 20 is provided with a corresponding second adjusting bolt 21. The diameter of the head of each second adjusting bolt 21 is greater than the width of the strip opening 20, and each second adjusting bolt 21 penetrates the corresponding The strip-shaped opening 20 is threadedly connected to the lower end of the side wall of the telescopic inner tube 4. A fixing ear 5 is fixedly arranged at the top of the telescopic inner tube 4. A micro-drive motor 6 is fixedly arranged on the side wall of one side of the fixing ear 5. The micro-drive motor 6 is a 57 series motor with a rated power of 30W. The output shaft of the micro-drive motor 6 is fixedly connected to a rotating rod 7. The rotating rod 7 passes through the fixing ear 5 and is fixedly connected to a rectangular frame 8. The rectangular frame 8 is arranged in a flat U shape, and the outer surface of the rectangular frame 8 is smoothly polished. A matching bearing is arranged at the connection between the fixing ear 5 and the rotating rod 7. A first side wall of the rectangular frame 8 is threadedly connected to The adjusting bolt 9 is penetrated through the side wall of the rectangular frame 8 and is rotatably connected to the corresponding upper connecting plate. The upper connecting plate is connected to the inner side wall of the rectangular frame 8 by two limiting telescopic rods 12, and an upper clamping plate 10 is fixedly arranged at one end of the upper connecting plate away from the first adjusting bolt 9. The first adjusting bolt 9 and the limiting telescopic rod 12 are arranged together with the manual clamping device to realize the tightening of horizontal screws of different models without changing different models of fastening tools back and forth. The other side wall of the rectangular frame 8 is provided with a through hole corresponding to the first adjusting bolt 9;

[0022] A manual clamping device is arranged in the through hole, and the manual clamping device cooperates with the upper clamping plate 10 through the arrangement of the manual clamping device, so as to facilitate the tightening of horizontal screws of different types. The manual clamping device comprises a lower connecting plate, a rack 13 and a lower clamping plate 11. The lower clamping plate 11 is fixedly arranged on the upper side wall of the lower connecting plate, and the lower side wall of the lower connecting plate is fixedly connected to the rack 13, and the rack 13 passes through the through hole. Anti-slip grooves are arranged on the rack 13 and the clamping plate 24. Anti-slip grooves are arranged on the rack 13 and the clamping plate 24 to prevent the relative sliding of the rack 13 and the clamping plate 24 when the rack 13 is clamped and fixed, thereby affecting the upper clamping plate 10 and the lower clamping plate 10. The plate 11 has a fastening effect on the horizontal screws. A first telescopic rod 14 is symmetrically arranged between the lower connecting plate and the inner wall of the rectangular frame 8. The two ends of the two first telescopic rods 14 are respectively against the lower connecting plate and the inner wall of the rectangular frame 8, and each first telescopic rod 14 is sleeved with a corresponding first spring 15. The first spring 15 is located between the lower connecting plate and the inner wall of the rectangular frame 8. A limit plate 19 is fixedly arranged at one end of the rack 13 away from the lower connecting plate. The limit plate 19 is arranged at the lower end of the rack 13 to prevent the first spring 15 from driving the rack 13 to directly pass through the through hole during the process of restoring its own deformation, thereby affecting the normal reset of the rack 13.

[0023] A hollow cavity 16 is provided in the side wall of the rectangular frame 8, and a card plate 24 corresponding to the rack 13 is provided in the hollow cavity 16. The side wall of the card plate 24 away from the rack 13 is connected to the inner wall of the hollow cavity 16 through a second telescopic rod 22 symmetrically positioned, and each second telescopic rod 22 is sleeved with a corresponding second spring 23, and each second spring 23 is located between the card plate 24 and the inner wall of the hollow cavity 16, and the side wall of the card plate 24 away from the rack 13 is fixedly connected to a pull rope 17, and the pull rope 17 is arranged to penetrate the side wall of the rectangular frame 8 outwardly, and the side wall of the rectangular frame 8 is provided with a pull rope 17 corresponding to the pull rope 17. 7 corresponding to the steering wheel 25, the setting of the steering wheel 25 is to avoid spending too much effort when pulling the pull rope 17, and also to avoid serious wear and tear at the contact point between the pull rope 17 and the side wall of the rectangular frame 8, and a pull handle 18 is provided at the end of the pull rope 17 away from the card plate 24, the outer surface of the pull rope 17 is wrapped with a wear-resistant layer of uniform thickness, the setting of the wear-resistant layer improves the service life of the pull rope 17, and the outer surface of the handle is wrapped with a soft sponge, the setting of the soft sponge improves the comfort of the human body, the pull rope 17, the pull handle 18 and the fixing ear 5 are all made of insulating material.

[0024] In the present invention, when in use, first move the base plate 1 to the specified position, and then screw the first adjusting bolt 9 according to the model of the horizontal screw that needs to be tightened. Because the first adjusting bolt 9 is threadedly connected to the side wall of the rectangular frame 8, and the first adjusting bolt 9 is rotatably connected to the upper connecting plate, under the action of the limiting telescopic rod 12, as the first adjusting bolt 9 is tightened, the upper clamping plate 10 continuously moves toward the center of the rectangular frame 8. When the upper clamping plate 10 reaches the specified position, stop screwing the first adjusting bolt 9. At this time, adjust the extension length of the telescopic inner tube 4 according to the height of the horizontal screw, and then tighten the second adjusting bolt 21. Because the second adjusting bolt 21 is threadedly connected to the side wall of the telescopic inner tube 4, as the second adjusting bolt 21 is tightened, when the head of the second adjusting bolt 21 is tightly against the side wall of the telescopic outer tube 3, At this time, the extended length of the telescopic inner tube 4 is fixed, and then the bottom plate 1 is moved so that the upper side wall of the upper clamping plate 10 is against the upper side wall of the horizontal screw head, and then the pull handle 18 is pulled, and the pull rope 17 drives the clamping plate 24 to compress the second spring 23. The rack 13 loses the clamping effect of the clamping plate 24 at this time, and the first spring 15, which was originally in a compressed state, pushes the lower connecting plate upward and then pushes the lower clamping plate 11 to move toward the lower side wall of the horizontal screw. When the upper side wall of the lower clamping plate 11 is tightly against the lower side wall of the horizontal screw, the pull rope 17 is released at this time, and the second spring 23 drives the clamping plate 24 to clamp the rack 13 again, and the position of the lower clamping plate 11 is fixed, and then the micro-drive motor 6 is started, and the output shaft of the micro-drive motor 6 drives the rotating rod 7 to rotate, and then drives the rectangular frame 8 to rotate, thereby completing the tightening of the horizontal screw.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A horizontal screw live tightening tool for substation equipment, comprising a base plate (1), characterized in that: A telescopic outer tube (3) is fixedly arranged at the center of the upper side wall of the bottom plate (1); a telescopic inner tube (4) is vertically slidably connected to the upper opening of the telescopic outer tube (3); and the lower end of the telescopic inner tube (4) is inserted into the telescopic outer tube (3); the side wall of the telescopic outer tube (3) is provided with strip-shaped openings (20) symmetrically positioned; each of the strip-shaped openings (20) is provided with a corresponding second adjustment bolt (21); the diameter of the head of each of the second adjustment bolts (21) is greater than the width of the strip-shaped opening (20); and each of the second adjustment bolts (21) penetrates the corresponding strip-shaped opening (20) inwardly and is threadedly connected to the lower end of the side wall of the telescopic inner tube (4); a fixing ear (5) is fixedly arranged at the top end of the telescopic inner tube (4); and a micro-drive is fixedly arranged on one side wall of the fixing ear (5). A motor (6), wherein the output shaft of the micro-drive motor (6) is fixedly connected to a rotating rod (7), the rotating rod (7) passes through a fixing ear (5) and is fixedly connected to a rectangular frame (8), and a matching bearing is provided at the connection between the fixing ear (5) and the rotating rod (7), a first adjusting bolt (9) is threadedly connected to a side wall of one side of the rectangular frame (8), and the first adjusting bolt (9) passes through the side wall of the rectangular frame (8) inwardly and is rotatably connected to a corresponding upper connecting plate, the upper connecting plate is further connected to the inner side wall of the rectangular frame (8) via two limiting telescopic rods (12), and an upper clamping plate (10) is fixedly provided at one end of the upper connecting plate away from the first adjusting bolt (9), and a through hole corresponding to the first adjusting bolt (9) is provided on the other side wall of the rectangular frame (8), and a manual clamping device is provided in the through hole,The manual clamping device comprises a lower connecting plate, a rack (13) and a lower clamping plate (11), wherein the lower clamping plate (11) is fixedly arranged on the upper side wall of the lower connecting plate, and the lower side wall of the lower connecting plate is fixedly connected to the rack (13), and the rack (13) is arranged through a through hole, and first telescopic rods (14) are symmetrically arranged between the lower connecting plate and the inner side wall of the rectangular frame (8), and the two ends of the two first telescopic rods (14) are respectively abutted against the lower connecting plate and the inner side wall of the rectangular frame (8), and each first telescopic rod (14) is sleeved with a corresponding first spring (15), and the first spring (15) is located between the lower connecting plate and the inner side wall of the rectangular frame (8), and a hollow cavity (16) is arranged in the side wall of the rectangular frame (8), and a spring (16) is arranged in the hollow cavity (16) to be in contact with the rack (13) ), a side wall of the card plate (24) away from the rack (13) is connected to the inner wall of the hollow cavity (16) through a second telescopic rod (22) symmetrically positioned, and each second telescopic rod (22) is sleeved with a corresponding second spring (23), and each second spring (23) is located between the card plate (24) and the inner wall of the hollow cavity (16), and a pull rope (17) is fixedly connected to the side wall of the card plate (24) away from the rack (13), and the pull rope (17) is arranged to pass through the side wall of the rectangular frame (8) outwardly, and a pull handle (18) is arranged at one end of the pull rope (17) away from the card plate (24), and a plurality of groups of uniformly distributed universal wheels (2) are fixedly arranged on the lower side wall of the bottom plate (1), and each universal wheel (2) is a brake universal wheel (2).

2. The horizontal screw live tightening tool for substation equipment according to claim 1, characterized in that: The outer surfaces of the telescopic inner tube (4) and the telescopic outer tube (3) are plated with a rust-proof coating of uniform thickness.

3. The horizontal screw live tightening tool for substation equipment according to claim 1, characterized in that: The rectangular frame (8) is configured to be a flat U-shape, and the outer surface of the rectangular frame (8) is polished and smooth.

4. The horizontal screw live tightening tool for substation equipment according to claim 1, characterized in that: A limiting plate (19) is fixedly provided at one end of the rack (13) away from the lower connecting plate.

5. The horizontal screw live tightening tool for substation equipment according to claim 1, characterized in that: A steering wheel (25) corresponding to the position of the pull rope (17) is provided on the side wall of the rectangular frame (8).

6. The horizontal screw live tightening tool for substation equipment according to claim 1, characterized in that: The outer surface of the pull rope (17) is wrapped with a wear-resistant layer of uniform thickness, and the outer surface of the handle is wrapped with a soft sponge.

7. The horizontal screw live tightening tool for substation equipment according to claim 1, characterized in that: The rack (13) and the clamping plate (24) are both provided with anti-slip grooves.

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