CN111799624A - Adjustable switch cabinet overhauls uses generating line earthing device - Google Patents

Abstract

The invention discloses an adjustable bus grounding device for overhauling a switch cabinet, wherein a pair of vertical screw rods are respectively and movably arranged at two side parts of a frame, first worm gears are respectively arranged on the pair of vertical screw rods, an adjusting rod is movably arranged on the frame, a pair of first worms are arranged on the adjusting rod, the pair of worms are respectively meshed with the first worm gears on the pair of vertical screw rods, a first hand wheel is arranged at one end part of the adjusting rod, vertical grooves are respectively arranged at the two side parts of the frame, limiting seats are respectively arranged at the two side parts of a lifting support, vertical screw holes are arranged on the limiting seats, and the lifting support is movably clamped in the vertical grooves of the frame through the limiting seats, and the adjustable bus grounding device has the advantages that: the grounding requirements of bus wiring terminals in different switch cabinets are well met, the manufacturing and using cost is reduced, the operation is very convenient and fast when the grounding device is used, and the working efficiency is remarkably improved.

Description

Adjustable switch cabinet overhauls uses generating line earthing device

Technical Field

The invention relates to the technical field of grounding trolleys, in particular to the technical field of switch cabinet bus grounding trolleys.

Background

The main function of the switch cabinet is to open, close, control and protect electric equipment in the process of power generation, power transmission, power distribution and electric energy conversion of an electric power system, the components in the switch cabinet mainly comprise a circuit breaker, an isolating switch, a load switch, an operating mechanism, a mutual inductor, various protection devices and the like, and the switch cabinet is mainly suitable for various different occasions such as power plants, transformer substations, petrochemical industry, metallurgical steel rolling, light industrial and textile, factory and mining enterprises, residential quarters, high-rise buildings and the like. The cubical switchboard need carry out ground connection with the cylindrical terminal of generating line in the cubical switchboard when overhauing to ensure the security of maintainer when overhauing the operation, earthing device that present cubical switchboard generating line terminal is commonly used is mostly cubical switchboard ground connection dolly, however this kind of cubical switchboard ground connection dolly has following several weak points: firstly, the heights of bus terminals in different switch cabinets are different from the distance between adjacent bus terminals, and the grounding mechanism of the traditional switch cabinet grounding trolley is of a fixed structure, so that the grounding mechanism can only be suitable for the switch cabinet matched with the grounding mechanism and cannot well meet the grounding requirements of the bus terminals in different switch cabinets; secondly, traditional cubical switchboard ground connection dolly not only structure is complicated, and the price is expensive, has increased the ground connection cost of cubical switchboard maintenance operation by a wide margin, and it is also not very convenient to use the operation moreover to overhaul work efficiency has been reduced.

Disclosure of Invention

The invention aims to solve the defects and provide the adjustable bus grounding device for the switch cabinet maintenance, which can meet the grounding requirements of bus binding posts in different switch cabinets, has simple structure, low manufacturing cost and convenient use.

The technical solution adopted by the present invention to solve the above technical problems is as follows:

the adjustable bus grounding device for overhauling the switch cabinet comprises a frame, trundles, a lifting mechanism, a transverse lead screw, a transverse moving mechanism, a butting mechanism, a linkage mechanism and a grounding conductive seat, wherein the lifting mechanism comprises a lifting support, paired vertical lead screws and an adjusting rod, the paired vertical lead screws are respectively movably arranged at two side parts of the frame, first worm wheels are respectively arranged on the paired vertical lead screws, the adjusting rod is movably arranged on the frame, the paired first worm screws are arranged on the adjusting rod and are respectively meshed with the first worm wheels on the paired vertical lead screws, a first hand wheel is arranged at one end part of the adjusting rod, vertical grooves are respectively arranged at two side parts of the frame, limiting seats are respectively arranged at two side parts of the lifting support, vertical screw holes are arranged on the limiting seats, and the lifting support is movably clamped in the vertical grooves of the frame through the limiting seats, the horizontal sliding seat is movably sleeved on the guide rod through the guide hole, the horizontal lead screw penetrates through the horizontal through hole of the horizontal sliding seat and is rotatably arranged in the screw sleeve, the second worm is movably arranged in the accommodating groove of the horizontal sliding seat, the second worm is meshed with the second worm wheel, one end part of the second worm penetrates out of the horizontal sliding seat, a second hand wheel is arranged at the end part of the second worm, the butt joint mechanism respectively comprises a cylinder body, The cylinder body and the cylinder body are made of insulating materials, the support, the claw pieces, the connecting rod and the sleeve are made of conductive materials, the support is fixedly installed at the front end portion of the cylinder body, the cylinder body is fixedly connected with the sleeve, the cylinder body and the sleeve are movably sleeved on the outer side of the cylinder body, the claw pieces are hinged to the support, the claw pieces are evenly distributed along the circumferential direction of the support, one end portion of the connecting rod is hinged to the sleeve, the other end portion of the connecting rod is hinged to the claw pieces, two end portions of the first tension spring are respectively fixedly connected with adjacent claw pieces, the locking mechanism comprises a locking plate, a lever and a pressure spring, a tooth row is arranged on the cylinder body, a first avoiding groove corresponding to the tooth row is formed in the inner side wall of the cylinder body, a boss is arranged at the rear portion of the cylinder body, a groove and a guide groove communicated with the first avoiding groove are formed in the boss, a through groove communicated with the guide groove and the groove is further formed in the boss, the lock plate is movably clamped in the guide groove, the pressure spring is located in the guide groove, two end portions of the pressure spring are respectively abutted against the upper end portion of the lock plate and the inner top wall of the guide groove, pin posts are arranged on the lock plate, the lever is movably installed in the through groove of the boss through a rotating shaft, one end portion of the lever is located in the groove, a pin groove is formed in the other end portion of the lever, the pin posts of the lock plate are clamped in the pin grooves, the lock plate is clamped on the gear row, slotted holes are respectively formed in the transverse sliding seats, the butt joint mechanisms are respectively penetrated in the slotted holes of the transverse sliding seats through the cylinders, the cylinders of the butt joint mechanisms are respectively and fixedly connected with the transverse sliding seats through supporting rods, second avoidance grooves corresponding to the supporting rods are formed in the cylinders, the grounding conductive seats are fixedly installed on the frame, and one, another tip and the ground connection conducting seat electricity of earth conductor are connected, link gear is provided with mated guide rail including control rod, mated vertical slider and mated second extension spring on lifting support the spout has been seted up respectively on the mated vertical slider, and mated vertical slider is put on mated guide rail through spout activity card respectively, has seted up spacing groove and blind hole on vertical slider, control rod activity card is put at the spacing inslot of mated vertical slider, is provided with the anticreep board corresponding with the spacing groove respectively at the both ends of control rod, mated second extension spring is located the blind hole of mated vertical slider respectively, the both ends of second extension spring respectively with the interior roof fixed connection of control rod and blind hole, the control rod is corresponding with the recess of boss, truckle movable mounting is in the bottom of frame.

The number of the butt joint mechanisms is three, and the number of the transverse moving mechanisms is three corresponding to the butt joint mechanisms.

The outer side walls of the claw pieces are respectively provided with a connecting seat, and two ends of the first tension spring are respectively fixedly connected with the connecting seats of the adjacent claw pieces.

The claw piece is hinged with the support through a first pivot, one end of the connecting rod is hinged with the sleeve through a second pivot, and the other end of the connecting rod is hinged with the claw piece through a third pivot.

The support is bowl-shaped.

The invention adopts the technical proposal to achieve the following beneficial effects:

1. vertical and horizontal regulation can be carried out to docking mechanism through elevating system and sideslip mechanism to make docking mechanism's height and the interval between the adjacent docking mechanism all can adjust according to the interval between the high and adjacent terminal of bus terminal in the cubical switchboard, thereby adapted to the ground connection demand of bus terminal in the different cubical switchboard well, effectively widened this adjustable cubical switchboard overhauls uses bus grounding device's application scope.

2. This adjustable cubical switchboard overhauls and uses bus earthing device clasps the terminal of cubical switchboard generating line through docking mechanism's claw lamella to can realize ground connection through claw lamella, connecting rod, sleeve pipe, earth conductor and ground connection conducting seat, compare and obtained simplifying by a wide margin in traditional cubical switchboard ground connection dolly structure, greatly reduced makes use cost, and use the operation also very convenient and fast, effectively reduced the earthing cost of cubical switchboard maintenance operation, showing and improving work efficiency.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic right-view structural diagram of the present invention shown in FIG. 1;

FIG. 3 is a schematic view of the expanded claw of FIG. 2;

FIG. 4 is an enlarged view of a portion of FIG. 1 at A;

FIG. 5 is an enlarged view of a portion of FIG. 1 at B;

FIG. 6 is an enlarged view of a portion of FIG. 1 at C;

FIG. 7 is an enlarged partial schematic view at A1 in FIG. 4;

FIG. 8 is an enlarged partial schematic view at D of FIG. 2;

FIG. 9 is an enlarged partial view at M of FIG. 2;

FIG. 10 is an enlarged view of a portion of FIG. 2 at N;

FIG. 11 is an enlarged partial schematic view at D1 in FIG. 8;

FIG. 12 is an enlarged partial schematic view at M1 in FIG. 9;

FIG. 13 is an enlarged partial view at X in FIG. 3;

FIG. 14 is an enlarged view of a portion of FIG. 3 at W;

FIG. 15 is a cross-sectional view V-V of FIG. 8;

fig. 16 is a right-side view of the structure of fig. 9.

Detailed Description

As shown in fig. 1 and 2, the adjustable bus grounding device for overhauling a switch cabinet comprises a frame 1, casters 2, a lifting mechanism, a transverse screw rod 3, a transverse moving mechanism, a docking mechanism, a linkage mechanism and a grounding conductive seat 49, which are shown in fig. 4, 5, 6 and 10, wherein the lifting mechanism comprises a lifting support 5, paired vertical screw rods 6 and an adjusting rod 7, the paired vertical screw rods 6 are respectively and movably mounted at two side parts of the frame 1, first worm wheels 8 are respectively arranged on the paired vertical screw rods 6, the adjusting rod 7 is movably mounted on the frame 1, paired first worms 9 are arranged on the adjusting rod 7, the paired worms 9 are respectively meshed with the first worm wheels 8 on the paired vertical screw rods 6, and a first hand wheel 10 is arranged at one end part of the adjusting rod 7. Vertical grooves 11 are respectively formed in two side portions of the frame 1, limiting seats 12 are respectively arranged on two side portions of the lifting support 5, vertical screw holes 13 are formed in the limiting seats 12, the lifting support 5 is movably clamped in the vertical grooves 11 of the frame 1 through the limiting seats 12, and the vertical screw rods 6 are rotatably arranged in the vertical screw holes 13 of the limiting seats 12. As shown in fig. 4, 8 and 15, the traversing mechanism includes a transverse sliding base 14, a threaded sleeve 15 and a second worm 16, a guide rod 17 is disposed on the lifting bracket 5, the transverse screw 3 is fixedly mounted on the lifting bracket 5, a guide hole 18 and a transverse through hole 19 are disposed on the transverse sliding base 14, a receiving groove 20 is disposed at the transverse through hole 19 inside the transverse sliding base 14, the threaded sleeve 15 is movably clamped in the receiving groove 20, a second worm wheel 21 is disposed at an outer circumferential portion of the threaded sleeve 15, the transverse sliding base 14 is movably sleeved on the guide rod 17 through the guide hole 18, the transverse screw 3 passes through the transverse through hole 19 of the transverse sliding base 14 and is screwed in the threaded sleeve 15, the second worm 16 is movably mounted in the receiving groove 20 of the transverse sliding base 14, the second worm 16 is engaged with the second worm wheel 21, an end portion of the second worm 16 passes through the transverse sliding base 14, at this end of the second worm 16 a second wheel 22 is provided. As shown in fig. 2, 9, 12 and 16, the docking mechanism includes a cylinder 23, a cylinder 24, a sleeve 25, a support 26, a claw 27, a connecting rod 28, a first tension spring 29, a ground wire 30 and a locking mechanism, the cylinder 23 and the cylinder 24 are made of an insulating material, the support 26, the claw 27, the connecting rod 28 and the sleeve 25 are made of a conductive material, the support 26 is fixedly mounted at the front end of the cylinder 23, the support 26 is bowl-shaped, the cylinder 24 is fixedly connected with the sleeve 25, the cylinder 24 and the sleeve 25 are movably sleeved outside the cylinder 23, the claw 27 is hinged to the support 26 through a first pivot 31, the claw 27 is uniformly distributed along the circumference of the support 26, one end of the connecting rod 28 is hinged to the sleeve 25 through a second pivot 32, the other end of the connecting rod 28 is hinged to the claw 27 through a third pivot 33, two ends of the first tension spring 29 are respectively fixedly connected to the adjacent claw 27, the first tension spring 29 is fixedly connected with the adjacent claw piece 27 in the following specific manner: the outer side walls of the claw flaps 27 are respectively provided with a connecting seat 58, and the two ends of the first tension spring 29 are respectively fixedly connected with the connecting seats 58 of the adjacent claw flaps 27. As shown in fig. 11, the locking mechanism includes a locking plate 34, a lever 35 and a pressure spring 36, a tooth row 37 is disposed on the cylinder 23, a first avoiding groove 38 corresponding to the tooth row 37 is disposed on the inner side wall of the cylinder 24, a boss 39 is disposed at the rear portion of the cylinder 24, a groove 40 and a guide groove 41 communicating with the first avoiding groove 38 are disposed on the boss 39, a through groove 42 communicating with the guide groove 41 and the groove 40 is further disposed in the boss 39, the locking plate 34 is movably clamped in the guide groove 41, the pressure spring 36 is disposed in the guide groove 41, two end portions of the pressure spring 36 respectively abut against the upper end portion of the locking plate 34 and the inner top wall of the guide groove 41, a pin 43 is disposed on the locking plate 34, the lever 35 is movably mounted in the through a rotating shaft 44 in the through groove 42 of the boss 39, one end portion of the lever 35 is disposed in the groove 40, and the other end portion of the lever 35 is disposed with a pin groove, the pins 43 of the lock plate 34 are captured in the pin slots 45 and the lock plate 34 is captured on the row of teeth 37. As shown in fig. 8, the horizontal sliding base 14 is respectively provided with a slot 46, the docking mechanisms are respectively inserted into the slot 46 of the horizontal sliding base 14 through the cylinder 24, the cylinders 23 of the docking mechanisms are respectively fixedly connected with the horizontal sliding base 14 through the supporting rods 47, and the cylinder 24 is provided with a second avoiding groove 48 corresponding to the supporting rods 47. The grounding conductive seat 49 is fixedly installed on the frame 1, one end of the grounding wire 30 is electrically connected with the sleeve 25, and the other end of the grounding wire 30 is electrically connected with the grounding conductive seat 49. As shown in fig. 7 and 8, the linkage mechanism includes an operating lever 50, a pair of longitudinal sliders 51 and a pair of second tension springs 52, a pair of guide rails 53 are disposed on the lifting bracket 5, slide grooves 54 are respectively disposed on the pair of longitudinal sliders 51, the pair of longitudinal sliders 51 are movably clamped on the pair of guide rails 53 through the slide grooves 54, a limit groove 55 and a blind hole 56 are disposed on the longitudinal slider 51, the operating lever 50 is movably clamped in the limit groove 55 of the pair of longitudinal sliders 51, anti-falling plates 57 corresponding to the limit groove 55 are respectively disposed at two end portions of the operating lever 50, the pair of second tension springs 52 are respectively disposed in the blind holes 56 of the pair of longitudinal sliders 51, the two end portions of the second tension spring 52 are respectively fixedly connected to the operating lever 50 and the inner top wall of the blind hole 56, and the operating lever 50 corresponds to the groove 40 of the boss 39. The trundles 2 are movably arranged at the bottom of the frame 1, the number of the butt joint mechanisms is three, the three groups of butt joint mechanisms correspond to three binding posts of a three-phase electric bus in the switch cabinet respectively, and the number of the transverse moving mechanisms is three groups corresponding to the butt joint mechanisms.

When the adjustable bus grounding device for overhauling the switch cabinet is used, firstly, the height and the interval of the butt joint mechanism are adjusted according to the height and the interval of bus binding posts in the switch cabinet, so that the claw flaps 27 of the butt joint mechanism are coaxially aligned with the binding posts of the bus of the switch cabinet, when in adjustment, the first hand wheel 10 of the lifting mechanism is used for rotating the adjusting rod 7 and the first worm 9, the first worm wheel 8 and the vertical screw rod 6 are driven by the first worm 7 to rotate, the limiting seat 12 and the lifting seat 5 are driven by the vertical screw rod 6 to move up and down along the vertical groove 11, the butt joint mechanism is adjusted to be level with the binding posts of the bus, then the second hand wheel 22 of the transverse moving mechanism is used for rotating the second worm 16, the second worm wheel 21 and the threaded sleeve 15 are driven by the second worm 16 to rotate, and the transverse sliding seat 14 is driven to move along the guide rod 17 under the interaction of the threaded sleeve, and aligning the butting mechanisms on the transverse moving mechanism with the binding posts of the bus respectively. Then the maintainer holds the operating lever 50 by hand, performs push-pull movement on the operating lever 50, moves the pair of longitudinal sliders 51 along the guide rail 53, moves the operating lever 50 to be right above the groove 40 of the boss 39, then presses the operating lever 50 downwards, so that the operating lever 50 is clamped into the groove 40 against the elastic force of the second tension spring 52, presses the operating lever 50 downwards on the lever 35, rotates the lever 35 around the rotating shaft 44, lifts the locking plate 34 upwards along the guide groove 41 against the elastic force of the compression spring 36, so that the locking plate 34 is disengaged from the tooth row 37 on the cylinder 23, then pulls the operating lever 50 backwards (i.e. towards the left in fig. 2), drives the cylinder 24 and the sleeve 25 to move backwards relative to the cylinder 23 through the operating lever 50, pulls the claw 27 against the opening elastic force of the first tension spring 29 through the connecting rod 28, so that the adjustable type switch cabinet overhauling bus bar device is in the state as shown in fig. 3, 13 and 14, then the frame 1 is pushed into the switch cabinet, the claw flaps 27 of the butting mechanism are respectively positioned at the periphery of the bus terminal, then the operating lever 50 is released, the operating lever 50 is separated from the groove 40 of the boss 39 under the action of the elastic force of the second tension spring 52, the claw flaps 27 tightly hold the terminal of the switch cabinet bus under the action of the elastic force of the first tension spring 29, then the grounding conductive seat 49 is grounded, and the terminal of the switch cabinet bus is grounded through the claw flaps 27, the connecting rod 28, the sleeve 25, the grounding conductive wire 30 and the grounding conductive seat 49.

Claims (5)

1. Adjustable cubical switchboard overhauls uses bus earthing device, its characterized in that: the lifting mechanism comprises a lifting support, paired vertical screw rods and an adjusting rod, the paired vertical screw rods are respectively movably mounted at two side parts of the frame, first worm wheels are respectively arranged on the paired vertical screw rods, the adjusting rod is movably mounted on the frame, the paired first worms are respectively arranged on the adjusting rod, the paired worms are respectively meshed with the first worm wheels on the paired vertical screw rods, a first hand wheel is arranged at one end part of the adjusting rod, vertical grooves are respectively formed at two side parts of the frame, limiting seats are respectively arranged at two side parts of the lifting support, vertical screw holes are formed in the limiting seats, the lifting support is movably clamped in the vertical grooves of the frame through the limiting seats, and the vertical screw rods are rotatably arranged in the vertical screw holes of the limiting seats, the transverse moving mechanism comprises a transverse sliding seat, a threaded sleeve and a second worm respectively, a guide rod is arranged on the lifting support, a transverse screw rod is fixedly arranged on the lifting support, a guide hole and a transverse through hole are formed in the transverse sliding seat respectively, a containing groove is formed in the transverse through hole in the transverse sliding seat, the threaded sleeve is movably clamped in the containing groove, a second worm wheel is arranged on the periphery of the threaded sleeve, the transverse sliding seat is movably sleeved on the guide rod through the guide hole, the transverse screw rod penetrates through the transverse through hole of the transverse sliding seat and is screwed in the threaded sleeve, the second worm is movably arranged in the containing groove of the transverse sliding seat, the second worm is meshed with the second worm wheel, one end part of the second worm penetrates out of the transverse sliding seat, a second hand wheel is arranged at the end part of the second worm, and the butt joint mechanism comprises a cylinder, a cylinder body, a sleeve pipe and a sleeve pipe respectively, The cylinder and the cylinder are made of insulating materials, the support, the claw pieces, the connecting rod and the sleeve are made of conductive materials, the support is fixedly installed at the front end portion of the cylinder, the cylinder is fixedly connected with the sleeve, the cylinder and the sleeve are movably sleeved outside the cylinder, the claw pieces are hinged to the support, the claw pieces are uniformly distributed along the circumferential direction of the support, one end portion of the connecting rod is hinged to the sleeve, the other end portion of the connecting rod is hinged to the claw pieces, two end portions of the first tension spring are respectively and fixedly connected with adjacent claw pieces, the locking mechanism comprises a locking plate, a lever and a pressure spring, a tooth row is arranged on the cylinder, a first avoiding groove corresponding to the tooth row is formed in the inner side wall of the cylinder, a boss is arranged at the rear portion of the cylinder, a groove and a guide groove communicated with the first avoiding groove are formed in the boss, a through groove communicated with the guide groove and the groove is further formed in the boss, the lock plate is movably clamped in the guide groove, the pressure spring is located in the guide groove, two end portions of the pressure spring are respectively abutted against the upper end portion of the lock plate and the inner top wall of the guide groove, pin posts are arranged on the lock plate, the lever is movably installed in the through groove of the boss through a rotating shaft, one end portion of the lever is located in the groove, a pin groove is formed in the other end portion of the lever, the pin posts of the lock plate are clamped in the pin grooves, the lock plate is clamped on the gear row, slotted holes are respectively formed in the transverse sliding seats, the butt joint mechanisms are respectively penetrated in the slotted holes of the transverse sliding seats through the cylinders, the cylinders of the butt joint mechanisms are respectively and fixedly connected with the transverse sliding seats through supporting rods, second avoidance grooves corresponding to the supporting rods are formed in the cylinders, the grounding conductive seats are fixedly installed on the frame, and one, another tip and the ground connection conducting seat electricity of earth conductor are connected, link gear is provided with mated guide rail including control rod, mated vertical slider and mated second extension spring on lifting support the spout has been seted up respectively on the mated vertical slider, and mated vertical slider is put on mated guide rail through spout activity card respectively, has seted up spacing groove and blind hole on vertical slider, control rod activity card is put at the spacing inslot of mated vertical slider, is provided with the anticreep board corresponding with the spacing groove respectively at the both ends of control rod, mated second extension spring is located the blind hole of mated vertical slider respectively, the both ends of second extension spring respectively with the interior roof fixed connection of control rod and blind hole, the control rod is corresponding with the recess of boss, truckle movable mounting is in the bottom of frame.

2. The adjustable busbar grounding device for the overhaul of the switch cabinet as claimed in claim 1, wherein: the number of the butt joint mechanisms is three, and the number of the transverse moving mechanisms is three corresponding to the butt joint mechanisms.

3. The adjustable busbar grounding device for the overhaul of the switch cabinet as claimed in claim 1 or 2, wherein: the outer side walls of the claw pieces are respectively provided with a connecting seat, and two ends of the first tension spring are respectively fixedly connected with the connecting seats of the adjacent claw pieces.

4. The adjustable busbar grounding device for the overhaul of the switch cabinet as claimed in claim 1 or 2, wherein: the claw piece is hinged with the support through a first pivot, one end of the connecting rod is hinged with the sleeve through a second pivot, and the other end of the connecting rod is hinged with the claw piece through a third pivot.

5. The adjustable busbar grounding device for the overhaul of the switch cabinet as claimed in claim 1 or 2, wherein: the support is bowl-shaped.

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