CN105788994A - Tool specialized for replacing fusion tube in current-limiting fuse - Google Patents
Tool specialized for replacing fusion tube in current-limiting fuse Download PDFInfo
- Publication number
- CN105788994A CN105788994A CN201610273332.6A CN201610273332A CN105788994A CN 105788994 A CN105788994 A CN 105788994A CN 201610273332 A CN201610273332 A CN 201610273332A CN 105788994 A CN105788994 A CN 105788994A
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- CN
- China
- Prior art keywords
- air pressure
- push rod
- limiting fuse
- valve
- fixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/25—Safety arrangements preventing or inhibiting contact with live parts, including operation of isolation on removal of cover
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
Abstract
The invention provides a tool specialized for replacing a fusion tube in a current-limiting fuse. The tool settles the technical problems of difficult maintenance, difficult mounting, and time-and-labor wasting in maintenance and mounting process of the current-limiting fuse. The tool belongs to the technical field of current-limiting fuse maintenance tools. The tool comprises a base, a fixed rack, a movable rack and an air pressure propulsion system. The fixed rack is fixed at one end of the upper part of the base, and the movable rack is slidably mounted at the other end of the upper part of the base. The air pressure propulsion system is mounted below the movable rack. The end of the air pressure propulsion system is fixed to the base. The air pressure propulsion system comprises a compression mechanism, an airbag device and a piston propulsion mechanism. The compression mechanism comprises a rocking bar and a cam. The rotating shaft of the rocking bar is mounted on the movable rack through a bearing. The airbag device comprises an upper pressing board, a lower bottom board, an air bag, an air pressure balancing pipe and an air valve. The piston propulsion mechanism comprises a push rod and a sleeve. The tool realizes high efficiency, effective time and labor saving in maintenance and mounting operation of the current-limiting fuse.
Description
Technical field
The present invention relates to limiting fuse maintenance tool technical field, specifically fusion tube specific purpose tool changed by a kind of limiting fuse.
Background technology
In transformer station limiting fuse to circuit its in good protection, once fortuitous event occurs.The fuse melting of limiting fuse, disconnecting circuit.When after limiting fuse fuse melting, it is necessary to change insurance.Need to removing the side current-carrying part of fuse when changing insurance, the current-carrying part of dismounting is formed by by a Tong Gai and a flat binding post, and wherein copper lid spring is connected with fuse.After changing insurance, in the current-carrying part process of assembling and disassembling, it is necessary to copper lid is defeated correct position with fuse is effective, with buckling piece and screw, the current-carrying part removed could be fastened.At least need two people to assist mutually during operation, just can complete work, and waste time and energy, have a strong impact on equipment electric power feeding time.Accordingly, it is desirable to provide a kind of device solves the problem that limiting fuse maintenance is difficult.
Summary of the invention
It is an object of the invention to provide a kind of limiting fuse and change fusion tube specific purpose tool, with the technical problem solving limiting fuse maintenance and installation difficulty, maintenance and installation process wastes time and energy.
This invention address that its technical problem is adopted the technical scheme that: a kind of limiting fuse is changed fusion tube specific purpose tool and included base, fixed mount, movable stand and air pressure propulsion system；
Described fixed mount is fixed on the one end on institute's base top, and described movable stand is slidably mounted on the other end on base top；Described air pressure propulsion system is installed on the bottom of movable stand, and the end of described gas propulsive system is fixed on described base；
Described air pressure propulsion system includes compression mechanism, airbag apparatus and piston propulsion mechanism；Described compression mechanism includes rocking bar and cam；The rotating shaft of described rocking bar is arranged on described movable stand by bearing；
Described airbag apparatus includes top board, lower shoe, gas bag, air pressure equalisation conduit and valve；Described airbag apparatus is positioned at the lower section of described compression mechanism, and described cam crimps with described top board；Described gas bag is arranged between described top board and lower shoe, and described gas bag closes space with described top board and lower shoe composition, installs back-moving spring in described gas bag；Described air pressure equalisation conduit is fixed on the bottom of described gas bag, and with gas bag UNICOM；Described air pressure equalisation conduit reversely installs valve, and described gas bag forward installs valve；
Described piston propulsion mechanism includes push rod and sleeve, and described push rod is hollow pipe, and described push rod is slidably sleeved in described sleeve；Described push rod outer end and the valve UNICOM on described air pressure equalisation conduit；Described sleeve is provided with steam vent, and described steam vent is provided with sealing-plug；The outer end of described push rod is fixed on described base.
The inner side and outer side on described base top is respectively symmetrically and arranges dovetail groove, and the bottom of described dovetail groove is provided with ball；The bottom of movable stand is provided with dovetail groove guide rail；Described base is provided with release link, and the outer end of described sleeve is fixed in described release link；The bottom of described base is respectively arranged at two ends with outer splayed supporting leg.
Described fixed mount includes the first fixing plate and the first bayonet socket, and the first described bayonet socket is provided with the first stop screw；Described movable stand includes the second fixing plate and the second bayonet socket, and the second described bayonet socket is provided with the second stop screw.
Centre position, described top board top is provided with the cambered way of projection.
Described valve includes valve inside and elastic rubber pipe.
The outside of described air pressure equalisation conduit is symmetrically installed the first valve and duaspiracle；The outer end of described first valve and duaspiracle closes off and is fixed with the first mozzle and the first mozzle；Described push rod includes, and the first push rod and the second push rod, the outer end of the first described push rod and the first described mozzle fix UNICOM, the second described push rod outer end UNICOM fixing with the second described mozzle.
The inner outside of described push rod is provided with sealing ring.
The invention has the beneficial effects as follows:
1, the present invention utilizes mobile platform mode, is connected on fixed mount by the blind end of limiting fuse, on the conductive end portion clamping movable stand remove limiting fuse, utilizes air pressure propulsion system, the installation site of conveniently adjusted conductive end portion；One man operation, namely can complete the maintenance and installation work of limiting fuse, and work efficiency is high, saves time, laborsaving.
2, the base of the present invention and movable stand adopt dovetail groove to be slidably connected mode, and frictional resistance is little, is moved easily the movement of frame.
3, the air pressure propulsion system in the present invention is installed air pressure equalisation conduit, and piston propulsion mechanism is symmetrically arranged, it is possible to ensure, the stationarity of movable stand motion.
4, the present invention is lightweight, be easy to carry, with low cost.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention；
Fig. 2 is the structural representation removing air pressure propulsion system of the present invention；
Fig. 3 is A place partial enlarged drawing in figure；
Fig. 4 is the top view of Fig. 2；
Fig. 5 is the sectional view of airbag apparatus of the present invention；
Fig. 6 is the sectional view of inventive piston propulsive mechanism；
In figure: 1. base；11. dovetail groove；13. ball；14. the first release link；15. the second release link；2. fixed mount；21. the first bayonet socket；3. movable stand；31. dovetail groove guide rail；32. the second bayonet socket；4. compression mechanism；41. cam；5. airbag apparatus；51. top board；52. lower shoe；53. gas bag；54. air pressure equalisation conduit；55. back-moving spring；56. the first valve；57. duaspiracle；58. third valve；6. piston propulsion mechanism；61. push rod；62. sleeve；63. sealing ring.
Detailed description of the invention
As shown in Figures 1 to 6, a kind of limiting fuse replacing fusion tube specific purpose tool includes base 1, fixed mount 2, movable stand 3 and air pressure propulsion system；
The bottom of described base 1 is respectively arranged at two ends with outer splayed supporting leg, and the supporting leg of outer splayed structure can increase stability when device is placed；The inner side and outer side on described base 1 top is respectively symmetrically and arranges dovetail groove 11, and all upward, the bottom of described dovetail groove 11 is provided with ball 13 to described dovetail groove 11 notch；Connection Bracket 2 is fixed on the top of described base 1 left end, described base 1 right-hand member top be respectively provided on two sides with the first release link 14 and the second release link 15；
Described fixed mount 2 includes the first fixing plate and the first bayonet socket 21.The fixing plate of described first is rectangular slab, and the bottom of the described first fixing plate is welded with described base 1 upper surface, and the rear end of described first bayonet socket 21 is fixedly welded on the inner side of the described first fixing plate；The first described bayonet socket 21 adopts cylinder hollow shell structure, in limiting fuse Maintenance Company termination process, described first bayonet socket 21 is for the blind end of clamping limiting fuse, the upper wall of described first bayonet socket 21 body is provided with the first fixing threaded hole, the first described fixing threaded hole is provided with the first fixing screw, after the blind end of limiting fuse is connected in the first bayonet socket 21, first fixing screw is prolonged the first fixing threaded hole and compresses downwards the blind end of limiting fuse, it is prevented that cause coming off of limiting fuse owing to the first bayonet socket 21 clamping relaxes；
Described movable stand 3 includes the fixing plate of dovetail groove guide rail 31, second and the second bayonet socket 32；
Described dovetail groove guide rail 31 is fixedly welded on the described second fixing both sides, plate bottom respectively, and the second described bayonet socket 32 is welded on the inner side of the described second fixing plate；Described dovetail groove guide rail 31 matches with described dovetail groove 11, described dovetail groove guide rail 31 is slidably sleeved in described dovetail groove 11, owing to the bottom of dovetail groove 11 is provided with ball 13, it is thereby possible to reduce friction during relative motion between dovetail groove guide rail 31 and dovetail groove 11；The rear end of described second bayonet socket 32 is fixedly welded on the inner side of the described second fixing plate；The second described bayonet socket 32 is oppositely arranged in parallel with the first described bayonet socket 21；The second described bayonet socket 32 adopts cylinder hollow shell structure, in limiting fuse Maintenance Company termination process, described second bayonet socket 32 is for the conducting end of clamping limiting fuse dismounting, the upper wall of described second bayonet socket 32 body is provided with the second fixing threaded hole, the second described fixing threaded hole is provided with the second fixing screw, after the conducting end of limiting fuse dismounting is connected in the second bayonet socket 32, second fixing screw is prolonged the second fixing threaded hole and compresses downwards the conducting end of limiting fuse dismounting, prevent from relaxing the coming off of the conducting end causing limiting fuse to be dismantled due to the second bayonet socket 32 clamping；
Described air pressure propulsion system includes compression mechanism 4, airbag apparatus 5 and piston propulsion mechanism 6；
Described compression mechanism 4 includes rocking bar and cam 41, and described rocking bar includes rocking arm, connecting rod and rotating shaft, and the inner of described rocking arm is welded by connecting rod is fixing with the outer end of described rotating shaft；Described rocking arm and shaft parallel, described connecting rod and rocking arm, rotating shaft are all vertical；Described rotating shaft is by the rotating top being arranged on the described second fixing plate of bearing；Described cam 41 is fixed in described rotating shaft, and when rocking bar rotates, band moving cam 41 rotates together；
Described airbag apparatus 5 is arranged on the lower section of described compression mechanism 4, and described airbag apparatus 5 includes top board 51, lower shoe 52, gas bag 53, air pressure equalisation conduit 54 and valve；
Described top board 51 is a rectangular slab, and centre position, top board 51 top is provided with the cambered way of projection, slides with in described cambered way extruding when described cam 41 moves to lower end, so that top board 51 is to pressing motion；Described cambered way can be prevented effectively from the cam 41 direct collision to top board 51；Described lower shoe 52 is a rectangular slab, and the inner side of described lower shoe 52 is welded and fixed with the described first outside fixing plate；Described gas bag 53 is arranged between described top board 51 and lower shoe 52, and described gas bag 53 closes space with described top board 51 and lower shoe 52 composition, and described gas bag 53 adopts Corii Bovis seu Bubali material；In airbag apparatus 5 work process, the pressure of the top pressing plate 51 of gas bag 53, internal gas is discharged；Described valve includes valve inside and elastic rubber pipe, described valve inside is upper end hollow, the cylinder that lower end is solid, one aperture of side opening and hollow space that lower end is solid are connected, the outer surface of described upper end hollow space is provided with annular protrusion, and described annular protrusion is between described aperture and the outer face of valve inside；Described elastic rubber pipe is sleeved on described valve inside, and the upper end of described gum sleeve is clamped on described annular protrusion, and the lower end of described gum sleeve is clamped on described solid cylinder；Described valve includes the first valve 56, duaspiracle 57 and third valve 58；Described third valve 58 forward is arranged on described gas bag 53, and namely the port of valve inside is outwardly, and gas can pass through third valve 58 and enter in gas bag 53, and can not reverse flow；Described air pressure equalisation conduit 54 is cylinder hollow pipe, adopts hard material, and described air pressure equalisation conduit 54 is positioned at the bottom of described gas bag 53；Described air pressure equalisation conduit 54 is fixed on described lower shoe 52；The inner side of described air pressure equalisation conduit 54 is provided with air inlet, the outside of described air pressure equalisation conduit 54 is symmetrically installed the first valve 56 and duaspiracle 57, the first described valve 56 and duaspiracle 57 are reversibly mounted on described air pressure equalisation conduit 54, i.e. internally installed towards air pressure equalisation conduit 54 of the port of valve inside；Gas can pass through the first valve 56 on air pressure equalisation conduit 54 and duaspiracle 57 is discharged, and can not reflux；The outer end of described first valve 56 and duaspiracle 57 closes off and is fixed with the first mozzle and the first mozzle；
Back-moving spring 55 is installed between described top board 51 and lower shoe 52, when cam 41 rotates pressing top board 51, back-moving spring 55 is compressed therewith, owing to third valve 58 forward on gas bag 53 is installed, when the air in gas bag 53 is compressed, elastic rubber pipe on third valve 58 tightens up, and covers the aperture of valve inside side, makes air can not be back to the external world from gas bag 53；Therefore, gas in gas bag 53 enters air pressure equalisation conduit 54 by the air inlet inside air pressure equalisation conduit 54, and owing to air pressure equalisation conduit 54 adopts hard material manufacture, pressurized is unlikely to deform, hence into the air pressure equalisation conduit 54 of the gas process in air pressure equalisation conduit 54, the air pressure after buffering is just comparatively balanced；First valve 56 and duaspiracle 57 are installed due to the outside reverse symmetry of air pressure equalisation conduit 54, therefore after the gas in air pressure equalisation conduit 54 reaches certain pressure intensity, compression air enters valve inside, by the aperture on valve inside, elastic rubber pipe " top " is risen, gas in air pressure equalisation conduit 54 enters the first mozzle and the first mozzle, without refluxing；
When cam 41 continues to rotate, eliminating after top board 51 is pressed, back-moving spring is subject to the effect of 55 reseting elasticities by top board 51 jack-up, in this process, causing in gas bag 53 that gas pressure intensity is less than ambient atmosphere pressure, therefore, outside air will be entered in gas bag 53 by third valve 58；Owing to the first valve 56 on air pressure equalisation conduit 54 and duaspiracle 57 are reversely installed, the first mozzle and the gas in the second mozzle can not be refluxed by the first valve 56 and duaspiracle 57；
Described piston propulsion mechanism 6 includes push rod 61 and sleeve 62；Described push rod 61 is the cylindrical bar of hollow, and the inner outside of described push rod 61 is provided with sealing ring 63, and described push rod 61 is slidably sleeved in described sleeve 62；Described sleeve 62 is provided with steam vent, and described steam vent is provided with sealing-plug；Described push rod 61 includes the first push rod and the second push rod, and described sleeve 62 includes the first sleeve and the second sleeve；The first described push rod is slidably sleeved in the first described sleeve, and the second described push rod is slidably sleeved in the second described sleeve；The outer end of the first described push rod UNICOM fixing with the first described mozzle, the second described push rod outer end UNICOM fixing with the second described mozzle；The outer end of described first sleeve is fixed in the first described release link 14, and the outer end of the second described sleeve is fixed in the second described release link 15.
When using this device to limiting fuse maintenance and installation, the blind end of limiting fuse is connected on the first described bayonet socket 21, the conductive end portion that limiting fuse is dismantled is connected on the second described bayonet socket 32, i.e. the overall structure of limiting fuse is in same rectilinear direction；Rotating rocker, cam 41 concomitant rotation in rotating shaft, cam 41 is the reciprocating extrusion airbag apparatus 5 of discontinuity in the process rotated, airbag apparatus 5 does air-breathing and aerofluxus moves back and forth, push rod 61 UNICOM due to mozzle and the piston propulsion mechanism 6 of the air pressure equalisation conduit 54 in gas bag 53, and push rod 61 and sleeve 62 are slidably set with, therefore airbag apparatus 5 is extruded in the process of aerofluxus by cam 41, push rod 61 is by the gas pressure between sleeve 62 and push rod 61, push rod 61 moves out along sleeve 62, and then drive movable stand 3 close to fixed mount 2, when the conductive end portion that the limiting fuse on the second bayonet socket 32 is dismantled moves to applicable installation site, stop operating rocking bar, carry out installing to the conductive end portion dismantled and fix；Owing to the first valve 56 and duaspiracle 57 are reversely installed, the gas in the middle of push rod 61 and sleeve 62 can not pass through the first valve 56 and duaspiracle 57 is back in gas bag 53, and therefore stop is fixed on installation site by movable stand 3；After limiting fuse keeps in repair, opening the sealing-plug of sleeve 62 upper air-vent, the gas in sleeve 62 is discharged from steam vent, and then movable stand 3 retracts original position, then by close for the steam vent on sleeve 62 blocking, uses in order to limiting fuse maintenance next time.
Adopting this device that limiting fuse is keeped in repair, a workman can be competent, changes the work in the past needing at least two workman just can complete, and improves work efficiency, and simple to operate.
The specific embodiment of the present invention is described in conjunction with accompanying drawing although above-mentioned; but not limiting the scope of the invention; on the basis of technical solution of the present invention, those skilled in the art need not pay various amendments or deformation that performing creative labour can make still in protection scope of the present invention.
Claims (7)
1. fusion tube specific purpose tool changed by a limiting fuse, it is characterised in that include base, fixed mount, movable stand and air pressure propulsion system；
Described fixed mount is fixed on the one end on institute's base top, and described movable stand is slidably mounted on the other end on base top；Described air pressure propulsion system is installed on the bottom of movable stand, and the end of described gas propulsive system is fixed on described base；
Described air pressure propulsion system includes compression mechanism, airbag apparatus and piston propulsion mechanism；Described compression mechanism includes rocking bar and cam；The rotating shaft of described rocking bar is arranged on described movable stand by bearing；
Described airbag apparatus includes top board, lower shoe, gas bag, air pressure equalisation conduit and valve；Described airbag apparatus is positioned at the lower section of described compression mechanism, and described cam crimps with described top board；Described gas bag is arranged between described top board and lower shoe, and described gas bag closes space with described top board and lower shoe composition, installs back-moving spring in described gas bag；Described air pressure equalisation conduit is fixed on the bottom of described gas bag, and with gas bag UNICOM；Described air pressure equalisation conduit reversely installs valve, and described gas bag forward installs valve；
Described piston propulsion mechanism includes push rod and sleeve, and described push rod is hollow pipe, and described push rod is slidably sleeved in described sleeve；Described push rod outer end and the valve UNICOM on described air pressure equalisation conduit；Described sleeve is provided with steam vent, and described steam vent is provided with sealing-plug；The outer end of described push rod is fixed on described base.
2. fusion tube specific purpose tool changed by a kind of limiting fuse according to claim 1, it is characterized in that, the inner side and outer side on described base top is respectively symmetrically and arranges dovetail groove, and the bottom of described dovetail groove is provided with ball；The bottom of movable stand is provided with dovetail groove guide rail；Described base is provided with release link, and the outer end of described sleeve is fixed in described release link；The bottom of described base is respectively arranged at two ends with outer splayed supporting leg.
3. fusion tube specific purpose tool changed by a kind of limiting fuse according to claim 1, it is characterized in that, described fixed mount includes the first fixing plate and the first bayonet socket, and the first described bayonet socket is provided with the first stop screw；Described movable stand includes the second fixing plate and the second bayonet socket, and the second described bayonet socket is provided with the second stop screw.
4. fusion tube specific purpose tool changed by a kind of limiting fuse according to claim 1, it is characterized in that, centre position, described top board top is provided with the cambered way of projection.
5. fusion tube specific purpose tool changed by a kind of limiting fuse according to claim 1, it is characterized in that, described valve includes valve inside and elastic rubber pipe.
6. fusion tube specific purpose tool changed by a kind of limiting fuse according to claim 1, it is characterized in that, the outside of described air pressure equalisation conduit is symmetrically installed the first valve and duaspiracle；The outer end of described first valve and duaspiracle closes off and is fixed with the first mozzle and the first mozzle；Described push rod includes, and the first push rod and the second push rod, the outer end of the first described push rod and the first described mozzle fix UNICOM, the second described push rod outer end UNICOM fixing with the second described mozzle.
7. fusion tube specific purpose tool changed by a kind of limiting fuse according to claim 1, it is characterized in that, the inner outside of described push rod is provided with sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610273332.6A CN105788994B (en) | 2016-04-27 | 2016-04-27 | A kind of limiting fuse changes fusion tube specific purpose tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610273332.6A CN105788994B (en) | 2016-04-27 | 2016-04-27 | A kind of limiting fuse changes fusion tube specific purpose tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105788994A true CN105788994A (en) | 2016-07-20 |
| CN105788994B CN105788994B (en) | 2017-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610273332.6A Active CN105788994B (en) | 2016-04-27 | 2016-04-27 | A kind of limiting fuse changes fusion tube specific purpose tool |
Country Status (1)
| Country | Link |
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| CN (1) | CN105788994B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111786315A (en) * | 2020-07-30 | 2020-10-16 | 浙江通源电力工程有限公司 | High-voltage line maintenance device |
| CN113894902A (en) * | 2020-12-08 | 2022-01-07 | 安徽信息工程学院 | Energy-saving efficient shoe last carving machine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112223203A (en) * | 2020-10-19 | 2021-01-15 | 国网新疆电力有限公司阿克苏供电公司 | Special tool for disassembling fuse |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113894902A (en) * | 2020-12-08 | 2022-01-07 | 安徽信息工程学院 | Energy-saving efficient shoe last carving machine |
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| Publication number | Publication date |
|---|---|
| CN105788994B (en) | 2017-09-26 |
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