CN103441005A - Hydraulic spring operation device applied to operation of opening and closing high-voltage circuit breaker - Google Patents
Hydraulic spring operation device applied to operation of opening and closing high-voltage circuit breaker Download PDFInfo
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- CN103441005A CN103441005A CN2013104148395A CN201310414839A CN103441005A CN 103441005 A CN103441005 A CN 103441005A CN 2013104148395 A CN2013104148395 A CN 2013104148395A CN 201310414839 A CN201310414839 A CN 201310414839A CN 103441005 A CN103441005 A CN 103441005A
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Abstract
The invention relates to a hydraulic spring operation device applied to operation of opening and closing a high-voltage circuit breaker. The hydraulic spring operation device comprises a mechanism main body, a connection support assembly, an auxiliary switch assembly, a pressure control assembly, a hydraulic valve assembly, a safety valve assembly, a pressure loss locking assembly, a driving device assembly and an oil tank assembly, wherein the oil tank assembly is mounted on the mechanism main body; the connection support assembly is mounted on the upper part of the oil tank assembly; the hydraulic valve assembly, the driving device assembly, the pressure control assembly and the safety valve assembly are clockwise fixed on four sides of the oil tank assembly in sequence; the pressure loss locking assembly and the auxiliary switch assembly are mounted on the external side of the connection support assembly. The hydraulic spring operation device fully enclosed without exposed oil pipe and oil way is very reliable in sealing performance, free from the influence of environment, reliable and stable in performance, simple in structure and low in processing difficulty; the total height of the hydraulic spring operation device is not greater than 700mm and is at least reduced by 150mm in comparison with those of the similar products, so that the volume is reduced to the maximum extent; through the hydraulic spring operation device, the noise is reduced.
Description
Technical field
The present invention relates to the automatic divide-shut brake powder operation device in a kind of primary cut-out, specifically a kind of hydraulic spring grease cup powder operation device for the high-voltage circuit-breaker switching on-off operation.
Background technology
Primary cut-out is applied in the high voltage power transmission and transforming circuit; power plant, power transformation most important control and protection equipment in electric power system in one's power; can disjunction and connect no-load current or the load current in the high-tension circuit of normal operation; can also be under system such as breaks down at the abnormal condition; with protective device and automatics, match, rapid disengagement failure power supply, Accident prevention enlarges; reduce power failure range, guarantee the safe operation of system.Whole missions of circuit breaker, be after all be embodied in contact minute, close action, and minute, close action and realize by operating mechanism, so quality of the service behaviour of operating mechanism and quality, play a part very important to service behaviour and the reliability of primary cut-out.
Current existing high-voltage circuit-breaker switching on-off operating mechanism is for various ways is arranged, as electromagnetic operating mechanism, spring operating mechanism, Pneumatic energy operating mechanism and spring hydraulic energy storage operation machine etc.Electromagnetic operating mechanism, spring operating mechanism, Pneumatic energy operating mechanism are used for many years, and the spring hydraulic energy storage operation machine is state-of-the-art operating mechanism to occur in recent years.Along with the progress of technical merit, China's spring hydraulic energy storage operation machine that also begins one's study in recent years, but still it is large to exist volume, and complex structure, poor reliability, affected by environment large, volume is larger, and cost is too high, the defects such as oil impregnate, leakage of oil.
Summary of the invention
The volume existed for high-voltage circuit-breaker switching on-off powder operation device of the prior art is larger, oozes, the weak point such as leakage of oil.The technical problem to be solved in the present invention is to provide a kind of dependable performance, not affected by environment and volume is little, cost is low for the hydraulic spring grease cup powder operation device of high-voltage circuit-breaker switching on-off operation.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of hydraulic spring grease cup powder operation device for the high-voltage circuit-breaker switching on-off operation of the present invention, comprise mechanism body, the connection bracket assembly, the auxiliary switch assembly, pressure is controlled assembly, the hydraulic valve assembly, safety valve complement, the no-voltage dead locking assembly, driving unit assembly and fuel tank assembly, wherein fuel tank assembly is installed on mechanism body, the connection bracket assembly is installed on the top of fuel tank assembly, the hydraulic valve assembly, driving unit assembly, pressure controls assembly and safety valve complement is fixed on respectively four sides of fuel tank assembly clockwise successively, no-voltage dead locking assembly and auxiliary switch assembly are installed on the connection bracket assembly outside.
Described mechanism body has disk spring, loaded cylinder and working cylinder, wherein loaded cylinder coordinates respectively with two external cylindrical surfaces of working cylinder, loaded cylinder is provided with the upper support ring outward, the base exterior of working cylinder is provided with load-bearing ring and lower support ring from inside to outside, disk spring axially is limited between upper and lower support ring in the mode of predeformation, and piston rod is located in working cylinder; Safety device nut sleeve and limit pull rod nut sleeve are housed on contact disc, and piston rod top is connected with copper shoe and load connector.
Described connection bracket assembly is the frame structure with base plate, with the fuel tank upper surface of fuel tank assembly, is fixedly connected with; Four sides of frame structure are I shape, one of them H-shaped upright column is provided with slideway, one back shaft and frame structure are connected, between connection bracket assembly and fuel tank assembly and and the piston rod of mechanism body between be provided with seal, the vent valve of fuel tank assembly is installed on base plate; The column outside that slideway is installed in frame structure is provided with a circular hole, and return spring and no-voltage dead locking return push rod inside are housed;
On frame structure 501 lower shoes, vent valve is housed, position is in the fuel tank the top.
Described auxiliary switch assembly has unit switch, unit switch fixed head, rotating shaft, long rocking arm and jointed gear unit, wherein unit switch is arranged on the unit switch fixed head, unit switch fixed head upper end is fixed on the column of back shaft and frame structure, and lower end is fixed on fuel tank; Rotating shaft is rotated and is installed in holder; Long rocking arm top is connected with straight pin, straight pin is movably placed in the groove of copper shoe of piston rod upper end, the other end of long rocking arm is fixedly connected with the different edge section on the rotating shaft dish respectively with the power input of jointed gear unit, and the power output of jointed gear unit is fixedly connected with the mandrel of unit switch.
Described hydraulic valve assembly has electromagnetically operated valve and valve body, and wherein valve inner is provided with valve pocket and spool, forms successively left cavity and the first～tetra-cavity between valve pocket and spool, and left cavity, at the left end of spool, is communicated with spool core cavity; The first cavity is positioned at a distolateral section of spool, adjacent with left cavity, and the first cavity is connected with the first separating brake electromagnetically operated valve or the second separating brake electromagnetically operated valve, by the combined floodgate choke valve of being located in fuel tank assembly, with fuel tank, is communicated with;
The second cavity is communicated with the first cavity when spool moves right, and when spool is moved to the left, with the 3rd cavity, is communicated with; The second cavity is communicated with the working cylinder cavity of resorption by fluid pressure line;
The 3rd cavity is communicated with spool core cavity by the hole of spool core, between the 3rd cavity and the 4th cavity, is provided with the combined floodgate electromagnetically operated valve, and the 3rd cavity is connected with the epicoele of working cylinder, the inner chamber of loaded cylinder by the separating brake choke valve of being located in fuel tank assembly;
The 4th cavity is positioned at a termination section of spool, by the first separating brake electromagnetically operated valve, with the first cavity, is connected.
Described pressure is controlled assembly and is had magnetic blow-out switch, limit pull rod, slide plate, positive stop strip, support bar, fixed head and side plate, wherein biside plate and support bar and fixed head are assembled into closed-in construction, a plurality of magnetic blow-out switch are fixed on upper and lower two fixed heads side by side, fix a plurality of positive stop strips with different spacing height on slide plate; Each positive stop strip is the roller of corresponding each magnetic blow-out switch bottom respectively; The top of slide plate is equipped with the no-voltage dead locking push rod, and this no-voltage dead locking push rod 808 coordinates with the latch plate in the no-voltage dead locking assembly.
Described no-voltage dead locking assembly is positioned at the top that pressure is controlled assembly, be fixed on the frame structure of connection bracket assembly, there is the latch plate assembly, three facades for U-shaped bending, one of them side elevation extend horizontally away a semi-cylindrical hill, and its lower surface corresponding pressure is controlled the no-voltage dead locking push rod in assembly; Opposite side facade top has ledge, this ledge and the copper shoe bottom butt that is arranged on piston rod part.
Described safety valve complement is installed on the side of fuel tank assembly, there is valve seat, valve rod, valve pocket, valve rod apical axis, pull bar and lever, wherein valve rod and valve rod apical axis are located in valve base cavity, one end of valve rod apical axis and valve butt, valve rod is provided with valve pocket outward, the protrusion position, end of valve pocket one end and valve rod offsets, the other end is provided with the valve pocket flange, be provided with the apical axis spring that makes the valve rod apical axis that thrust to the right be arranged between valve pocket flange and valve rod apical axis, be arranged with the valve rod spring that can make valve pocket and valve rod tight seal on the valve rod of apical axis spring inner; The cylindrical of valve pocket is provided with sealing ring, with hole corresponding on fuel tank, matches;
Fulcrum and the valve seat of lever are rotationally connected, the power arm cylinder lever connecting rod, and resistance arm is placed in the groove of valve rod apical axis; The contact disc of the bottom of pull bar and disk spring upper end is connected.
Described fuel tank assembly is arranged on the upper end of working cylinder in mechanism body 1, there is fuel tank, oil pump, separating brake choke valve, combined floodgate choke valve, fuel outlet valve, rectifier bridge, line bank, oily window, fuel tank inner sleeve, combined floodgate buffering ring and fuel tank inner flange, wherein the fuel tank outside is the cubic configuration of positive square bottom surface, and oil pump is arranged on fuel tank internal; Rectifier bridge, line bank are located at the fuel tank outside, and fuel outlet valve is located at fuel tank outer wall bottom, and oily window is located at fuel tank outer wall top; Cylindrical oil pocket middle part is provided with the fuel tank inner sleeve that can place piston rod, and fuel tank inner sleeve bottom is coaxially installed with the buffering of closing a floodgate, and top is coaxially installed with the fuel tank inner flange; Fuel tank has a plurality of oil circuit through holes, and combined floodgate choke valve, separating brake choke valve are located at respectively on the fuel tank internal fluid pressure line.
Described driving unit assembly has motor, and its output shaft is connected with little tooth, pinion and the engagement of internal tooth eccentric shaft, and the oil pump that internal tooth eccentric shaft band dynamicthrust push rod promotes in fuel tank assembly moves reciprocatingly; Above-mentioned output shaft, pinion and internal tooth eccentric shaft are located in housing, and the upper and lower end face of housing is by electric motor end cap and the sealing of gear shaft bottom end cover, and the thrust push rod is placed through outside housing.
The present invention has following beneficial effect and advantage:
1. the pressure that the present invention acts on hydraulic oil by butterfly spring carries out energy storage, pressure stability, be not subject to the impact of environment, oil pump driving mechanism adopts the internal gear transmission mode, and is full closeding state, not affected by environment, dwindled to greatest extent volume, reduced noise, and dependable performance is stable, total height is not more than 700mm, than the minimum 150mm that falls of like product.
2. oil circuit of the present invention is all at inside parts, and oil pump is fixed on the inside of fuel tank, and fuel tank adopts Steel material to make, increased the bonding strength of each bolt, do not exposed oil pipe and oil circuit, the frame structure lower surface directly is connected with fuel tank, cancel fuel tank cap, so there is sealing property very reliably.
3. pressure of the present invention is controlled the unlatching of magnetic blow-out switch in assembly, adopts sliding strip type to drive, and with like product, compares, and simple in structure, difficulty of processing is low, has dwindled to greatest extent volume.
4. vent valve is arranged on the base plate of frame structure, and the fuel tank space, at the fuel tank highest point, can be effectively utilized in its position, the volume read-out maximum, and in fuel tank, air is minimum, has improved action stability of the present invention.
The accompanying drawing explanation
Figure 1A is spring hydraulic powder operation device front view of the present invention;
The lateral plan that Figure 1B is Fig. 1;
Fig. 2 is the driving unit assembly structural representation in the present invention;
Fig. 3 A is that the pressure in the present invention is controlled the assembly front view;
The lateral plan that Fig. 3 B is Fig. 3 A;
The syndeton schematic diagram that Fig. 4 is middle frame structure of the present invention and fuel tank;
The syndeton schematic diagram that Fig. 5 A is vent valve and frame structure in the present invention;
Fig. 5 B is bowing to cutaway view of Fig. 5 A;
The cutaway view that Fig. 5 C is Fig. 5 A;
Fig. 6 is the mechanism body structural representation in the present invention;
Fig. 7 A is the hydraulic valve assembly structure schematic diagram in the present invention;
The lateral plan that Fig. 7 B is Fig. 7 A;
The cutaway view that Fig. 7 C is Fig. 7 A;
Fig. 8 A is no-voltage dead locking assembly structure schematic diagram in the present invention;
The vertical view that Fig. 8 B is Fig. 8 A;
Fig. 9 A is auxiliary switch assembly structure schematic diagram in the present invention;
The side diagram that Fig. 9 B is Fig. 9 A;
The A-A that Fig. 9 C is Fig. 9 A is to revolved view;
Figure 10 is the safety valve complement structural representation;
Figure 11 A is fuel tank assembly structure cutaway view;
Figure 11 B is that fuel tank assembly is bowed to view;
The A-A cutaway view that Figure 11 C is Figure 11 B;
The B-B cutaway view that Figure 11 D is Figure 11 B;
Figure 12 is fundamental diagram of the present invention.
Wherein, 1 is mechanism body, and 101 is butterfly spring, 102 is loaded cylinder, and 103 is working cylinder, and 104 is the upper support ring, 105 is base, and 106 is the load-bearing ring, and 107 is lower support ring, 108 is piston rod, and 109 is contact disc, and 110 is the splitting lock cushioning ring, 111 is the safety device nut sleeve, 112 control nut sleeve for pressure, and 113 is copper shoe, and 114 is load connector;
4 is the hydraulic valve assembly, and 401 is electromagnetically operated valve, and 402 is valve body, and 403 is valve pocket, and 404 is spool, 406 first separating brake electromagnetically operated valves, and 407 is the second separating brake electromagnetically operated valve, 408 is the combined floodgate electromagnetically operated valve; I is the first cavity, and II is the second cavity, and III is the 3rd cavity, and IV is the 4th cavity;
5 is the connection bracket assembly, 501 frame structures, and 502 is vent valve, and 503 is back shaft, and 504 is slideway, and 505 is no-voltage dead locking return push rod, 506 is return spring;
6 is driving unit assembly, and 601 is motor, and 602 is pinion, and 603 is the internal gear eccentric shaft, and 604 is the thrust push rod, and 605 is housing, and 606 is electric motor end cap, and 607 is the gear shaft bottom end cover;
7 is the no-voltage dead locking assembly, and 701 is the latch plate assembly, and 702 is supporting bracket;
8 control assembly for pressure, and 801 is limit pull rod, and 802 is slide plate, and 803 is positive stop strip, and 804 is support bar, and 805 is fixed head, and 806 is magnetic blow-out switch, and 807 is side shield, and 808 is the no-voltage dead locking push rod, and 809 is roller;
9 is fuel tank assembly, and 901 is fuel tank, and 902 is oil pump, and 903 is the fuel tank inner sleeve, and 904 is the combined floodgate buffering ring, and 905 is the fuel tank inner flange, and 906 is rectifier bridge, and 907 is line bank, and 908 is oily window, and 909 is fuel outlet valve, and 910 is the separating brake choke valve, and 911 is the combined floodgate choke valve;
10 is safety valve complement, and 1001 is valve seat, and 1002 is handle, 1003 is pull bar, and 1004 is drag link sleeve, and 1005 is nut, 1006 is lever, 1007 is valve rod, and 1008 is the apical axis spring, and 1009 is the valve rod spring, 1010 is the valve rod apical axis, 1011 is the valve pocket flange, and 1012 is the handle bearing pin, and 1013 is valve pocket;
11 is the auxiliary switch assembly, and 1101 is rotating shaft, 1102 holders, 1103 long rocking arms, 1104 first back-up rings, 1105 is unit switch, and 1106 is straight pin, and 1107a is the first short rocker arm|, 1107b is the second short rocker arm|, 1108 short rods, and 1109 is long draw, 1110 is the unit switch fixed head.
Embodiment
Below in conjunction with Figure of description, the present invention is further elaborated.
As Figure 1A, shown in 1B, a kind of hydraulic spring grease cup powder operation device for the high-voltage circuit-breaker switching on-off operation of the present invention, comprise mechanism body 1, connection bracket assembly 5, auxiliary switch assembly 11, pressure is controlled assembly 8, hydraulic valve assembly 4, safety valve complement 10, no-voltage dead locking assembly 7, driving unit assembly 6 and fuel tank assembly 9, wherein fuel tank assembly 9 is installed on mechanism body 1, connection bracket assembly 5 is installed on fuel tank assembly 9 tops, the profile of fuel tank assembly 9 is tetragonal structure, hydraulic valve assembly 4, driving unit assembly 6, pressure control assembly 8 and safety valve complement 10 are separately fixed at four sides of fuel tank assembly 9 in the direction of the clock, no-voltage dead locking assembly 7 and auxiliary switch assembly 11 are installed on connection bracket assembly 5 outsides.
1. mechanism body
In said structure, working cylinder 103 outer surface polarity shoulder cylinders, loaded cylinder 102 is enclosed within on two cylinders, working cylinder 103 lower end outer surfaces have groove, semicircle load-bearing ring 106 is arranged in groove, load-bearing ring 106 outsides are set with lower support ring 107, loaded cylinder end cap and upper support ring 104 are equipped with in the upper end of loaded cylinder 102, disk spring 101 is arranged between upper and lower support ring 104,107, the endoporus upper and lower side of loaded cylinder 102 has guide ring and sealing ring sealing, makes it that excellent sealing effect be arranged at work.
The safety device nut sleeve 111 coordinated with safety valve complement 10 is housed on contact disc 109 and controls with pressure the pressure control nut sleeve 112 that assembly 8 coordinates.
2. driving unit assembly
Described driving unit assembly 6 as shown in Figure 2, driving unit assembly 6 has motor 601, its output shaft is connected with pinion 602, pinion 602 and 603 engagements of internal tooth eccentric shaft, and the oil pump 902 that internal tooth eccentric shaft 603 promotes in fuel tank assembly 9 with dynamicthrust push rod 604 moves reciprocatingly; Above-mentioned output shaft, pinion 602 and internal tooth eccentric shaft 603 are located in housing 605, and the upper and lower end face of housing 605 is by electric motor end cap 606 and 607 sealings of gear shaft bottom end cover, and thrust push rod 604 is placed through outside housing 605.
Even rotatablely moving of motor 601 is transformed into the linear reciprocating motion of oil pump 902, realized to the system fuel feeding.All parts of driving unit assembly structure all are sealed in gear housing 605, are fixed by bolts to fuel tank 901 outsides.This compact conformation, part is sealing state, safety, noise is little.The gear that has improved like product exposes, and volume is larger, the shortcoming that noise is large.
3. fuel tank assembly
Fuel tank assembly 9, as shown in Fig. 4, Figure 11 A～11D, is arranged on the upper end of working cylinder 103 in mechanism body 1 by bolt, the sealing ring sealing is arranged therebetween.
Described fuel tank assembly 9 has fuel tank 901, oil pump 902, separating brake choke valve 910, combined floodgate choke valve 911, fuel outlet valve 908, rectifier bridge 906, line bank 907, oily window 908, fuel tank inner sleeve 903, combined floodgate buffering ring 904 and fuel tank inner flange 905, wherein fuel tank 901 outsides are the cubic configuration of positive square bottom surface, inside is cylindrical oil pocket, and oil pump 902 is arranged on fuel tank 901 inside; Rectifier bridge 906, line bank 907 are located at fuel tank 901 outsides, and fuel outlet valve is located at fuel tank 901 outer wall bottoms, and oily window 908 is located at fuel tank 901 outer wall tops; Cylindrical oil pocket middle part is provided with the fuel tank inner sleeve 903 that can place piston rod 108, and fuel tank inner sleeve 903 bottoms are coaxially installed with combined floodgate buffering ring 904, and top is coaxially installed with fuel tank inner flange 905; Fuel tank 901 has a plurality of oil circuit through holes, combined floodgate choke valve 911, separating brake choke valve 910 are located at respectively on fuel tank 901 internal hydraulic pressure pipelines, this design feature and like product relatively change the special purpose of mailbox, it has not only played the oil storage function of fuel tank, its inside is provided with a plurality of oil circuit through holes, installation site and the space of other assembly also are provided, have made whole apparatus structure compacter.
4. pressure is controlled assembly
As shown in Fig. 3 A, 3B, described pressure is controlled assembly 8 and is had magnetic blow-out switch 806, limit pull rod 801, slide plate 802, positive stop strip 803, support bar 804, fixed head 805 and side plate 807, wherein biside plate 807 is assembled into closed-in construction with support bar 804 and fixed head 805, a plurality of (the present embodiment is 8) magnetic blow-out switch 806 is fixed on upper and lower two fixed heads 805 side by side, fixes 8 positive stop strips 803 with different spacing height on slide plate 802; Each positive stop strip 803 is the roller of corresponding each magnetic blow-out switch bottom respectively; The top of slide plate 802 is equipped with no-voltage dead locking push rod 808, and this no-voltage dead locking push rod 808 coordinates with the latch plate assembly 701 in no-voltage dead locking assembly 7.
In the present embodiment, pressure is controlled assembly 8, biside plate 807 is fixed together it by two support bars 804, make it become the frame overall structure, the slide plate 802 that 8 positive stop strips 803 are installed can freely move up and down in the groove of biside plate 807, two fixed heads 805 are separately fixed at the upper of biside plate 807 inclined-planes, lower end, 8 magnetic blow-out switch 806 are fixed on fixed head 805 side by side, the bottom roller 809 of magnetic blow-out switch 806 is pressed on respectively on corresponding positive stop strip 803, the upper end of limit pull rod 801 is connected with the lower end of slide plate 802, the lower end of limit pull rod 801 is connected with the limit pull rod nut sleeve (being that pressure is controlled nut sleeve 112) on being arranged on contact disc 109, when butterfly spring 101 is upspring or is compressed, drive limit pull rod 801 by contact disc 109 and promote slide plate 802 and positive stop strip 803 motion up or down simultaneously, due to the incline position difference on each positive stop strip, so realized each magnetic blow-out switch the disconnected of differing heights or opened (position of cut-offfing of each magnetic blow-out switch is determined by switchgear plant).This structural volume is little, and difficulty of processing is low, and dependable performance is stable.Like product mostly is the control of rack drives gear driven cam herein, and the present invention has adopted positive stop strip 803 to control the open method of magnetic blow-out switch 806, relatively the gear teeth band structure, the positive stop strip formula is simple in structure, easy to manufacture, and volume be for can dwindle more than one times, more compact structure.
In the upper end of slide plate 802, no-voltage dead locking push rod 808 is installed, when butterfly spring 101 is upspring maximum height, no-voltage dead locking push rod 808 withstands the lower end of the semi-cylindrical hill part of latch plate assembly 701, realizes locking.
5. connection bracket assembly
Connection bracket assembly 5 is as shown in Fig. 5 A～5C, for the frame structure 501 with base plate, four sides of frame structure 501 are I shape, one of them H-shaped upright column is provided with slideway 504, be used for fixedly auxiliary switch assembly 11, can prevent that piston rod and copper sleeve from circling when moving up and down; One back shaft 503 is connected with frame structure 501, for fixing auxiliary switch assembly 11, between connection bracket assembly 5 and fuel tank assembly 9, reach and the piston rod 108 of mechanism body 1 between be provided with seal, the vent valve 502 of fuel tank assembly 9 is installed on base plate.
The column outside that slideway 504 is installed in frame structure 501 also is provided with a circular hole, and return spring 506 and no-voltage dead locking return push rod 505 inside are housed, and after locking is withdrawn from, plays the effect that latch plate resets.
On frame structure 501 lower shoes, vent valve 502 is housed, position is in fuel tank 901 the tops, guarantee that fuel tank 901 fluid are full of the inner space of whole fuel tank, and can make the air in fuel tank 901 obtain maximum discharge, this structure is also the difference with like product.
6. hydraulic valve assembly
Hydraulic valve assembly 4 is as shown in Fig. 7 A～7C, be used for controlling separating brake, closing operation, there is electromagnetically operated valve 401 and valve body 402, wherein valve body 402 inside are provided with valve pocket 403 and spool 404, form successively left cavity and the first～tetra-cavity between valve pocket 403 and spool 404, left cavity, at the left end of spool 404, is communicated with spool 404 core cavitys; The first cavity I is positioned at a distolateral section of spool 404, adjacent with left cavity, and the first cavity I is connected with the first separating brake electromagnetically operated valve 406 or the second separating brake electromagnetically operated valve 407, by combined floodgate choke valve 911, with fuel tank 901, is communicated with;
The second cavity II is communicated with the first cavity I when spool 404 moves right, and when spool 404 is moved to the left, with the 3rd cavity III, is communicated with; The second cavity II is communicated with working cylinder 103 cavity of resorptions by fluid pressure line;
The 3rd cavity III is communicated with spool 404 core cavitys by the hole of spool 404 cores, being provided with combined floodgate electromagnetically operated valve 408, the three cavity III between the 3rd cavity III and the 4th cavity IV is communicated with the epicoele of working cylinder 103, the inner chamber of loaded cylinder 102 by separating brake choke valve 910;
The 4th cavity IV is positioned at a termination section of spool 404, by the first separating brake electromagnetically operated valve 406, with the first cavity I, is connected.
7. decompression Sealed lock assembly
Decompression Sealed lock assembly 7 is as Fig. 8 A, shown in 8B, be positioned at pressure and control the top of assembly 8, there is latch plate assembly 701, be arranged on the column of frame structure 501, latch plate assembly 701 has three facades of U-shaped bending, assist supporting bracket 702 structure that is fixed with one in the inboard of latch plate assembly 701 top ledges in order to gain in strength, no-voltage dead locking push rod 808 is arranged on the top (no-voltage dead locking push rod height is adjustable) of slide plate 802, when butterfly spring 101 is upspring maximum height (in loaded cylinder without fluid, or residue fluid is can't complete follow-up work the time), the no-voltage dead locking push rod 808 that is arranged on slide plate 802 upper ends will withstand latch plate assembly 701 semi-cylindrical hills lower end partly slopes inwardly latch plate assembly 701, the ledge of latch plate assembly 701 upper ends withstands copper shoe 113 bottoms that are arranged on piston rod 108 tops, limited piston bar 801 moves down (restriction separating brake), realize locking.Decompression Sealed lock assembly 7 is simple in structure, and dependable performance guarantees that in device mechanism does not do minute, feed motion during without oil pressure.When operation of oil pump to after oil-filled in loaded cylinder, butterfly spring 101 is compressed gradually, no-voltage dead locking push rod 808 moves down gradually, leave latch plate assembly 701, the spring and the no-voltage dead locking apical axis that are contained in frame structure 501 column apertura lateralises will make the latch plate assembly outwards eject (resetting), lock release.
8. auxiliary switch assembly
Jointed gear unit is followed successively by long draw 1109, the first short rocker arm| 1107a, short rod 1108 and the second short rocker arm| 1107b, long rocking arm 1109 tops are fixed with straight pin 1106, on piston rod 801, (divide when mobile down, during combined floodgate), straight pin 1106 will move left and right in the groove of copper shoe 113, to take the hole of holder 1102 with duration rocking arm 1103 does and swings up and down as the center of circle, because long rocking arm 1103 lower ends are square hole, rotating shaft 1101 is also square with long rocking arm 1103 junctions, so rotating shaft 1101 also will be rotated when long rocking arm 1103 swings thereupon, by being connected to the long draw 1109 on rotating shaft 1101 dishes, drive the first short rocker arm| 1107a rotation, the first short rocker arm| 1107a is also that square is connected with the mandrel junction of unit switch 11056, so the unit switch mandrel also will rotate thereupon, realize the break-make of unit switch 1105 each contacts, another unit switch is realized the break-make of each contact equally by the second short rocker arm| 1107b and short rod 1108, this structural safety is reliable, guarantee each contact switching with minute, combined floodgate synchronous operation.
9. safety valve complement
Safety valve complement 10 as shown in figure 10, be installed on the side of fuel tank assembly 9, there is valve seat 1001, valve rod 1007, valve pocket 1013, valve rod apical axis 1010, pull bar 1003 and lever 1006, wherein valve rod 1007 and valve rod apical axis 1010 are located in valve seat 1001 inner chambers, one end of valve rod apical axis 1010 and valve rod 1007 butts, the outer valve pocket 1013 that is provided with of valve rod 1007, the protrusion position, end of valve pocket 1,013 one ends and valve rod 1007 offsets, make its close contact under the effect of valve rod spring 1009, keep sealing state; The other end is provided with valve pocket flange 1011, and the sealing ring sealing is arranged between valve pocket flange 1011 and valve pocket 1013, and apical axis spring 1008 makes valve rod apical axis 1010 that thrust to the right be arranged, and guarantees that valve rod 1007 is not subject to thrust left when sealing; Be arranged with the valve rod spring 1009 that can make valve pocket 1013 and valve rod 1007 tight seals on the valve rod 1007 of apical axis spring 1008 inside; The sealing ring sealing is arranged on the cylindrical of valve pocket 1013, and it matches with hole corresponding on fuel tank 901, and the fulcrum of lever 1006 and valve seat 1001 are rotationally connected, power arm cylinder lever connecting rod 1003, and resistance arm is placed in the groove of apical axis 1010; The contact disc 109 of the bottom of pull bar 1003 and disk spring 101 upper ends is connected.
When disk spring 101 is compressed to the maximum limit, driving 1003 pull bars by contact disc 109 opens safety valve, pressure oil is through the valve port of valve rod 1007 and valve pocket 1013, enter the inner chamber of valve pocket 1013, get back to fuel tank through the radial hole on valve pocket 1013 again, assurance disk spring 101 is worked under the state of safety; When disk spring 101 rebounds home, safety valve cuts out automatically.Safety valve complement 10 also is furnished with the handle 1012 that manual operation is used, the end cams of handle 1012 and valve rod apical axis 1010 other end butts.Work as equipment debugging, in renewal part and transportation, ensure personal safety by the oil pressure in handle 1012 operation delivery systems.
The pull bar 1003 and the pressure that are fixedly mounting safety valve complement 10 on the contact disc 109 of loaded cylinder 102 cylindricals of mechanism body 1 are controlled the limit pull rod 801 in assembly 8, with the unlatching of control safety valve and the break-make of magnetic blow-out switch 806, pressure is controlled the upper end dress no-voltage dead locking push rod 808 of assembly 8 middle slide plates 802, when disk spring 101 arrives extreme higher position (being that loaded cylinder 102 is interior without oil), no-voltage dead locking push rod 808 withstands latch plate 701, make it pin the copper shoe 113 of piston rod 108 upper ends, realize locking.
Operation principle of the present invention is as shown in figure 12:
Motor 601 startings in driving unit assembly 6, drive 603 rotations of internal tooth eccentric shaft by pinion 602, internal tooth eccentric shaft 603 promotes thrust push rod 604, thrust push rod 604 promotes oil pump 902 and starts working, pressure oil enters the 3rd cavity III of hydraulic valve assembly 4 valve bodies 402 simultaneously, the epicoele of working cylinder 103, loaded cylinder 102 inner chambers, when not carrying out breaking-closing operating, pressure oil can only be to the interior fuel feeding compression of loaded cylinder 102 disk spring 101, be arranged on the limit pull rod 801 that the pressure on the contact disc 109 on disk spring 101 tops controls in assembly 8 pulls slide plate 802 to move downward simultaneously, when moving to greatest limit (when disk spring is compressed to greatest limit), magnetic blow-out switch 806 rollers that positive stop strip 803 on slide plate 802 touches in pressure control assembly 8 disconnect magnetic blow-out switch, motor 601 outages, be that oil pump 902 quits work, now disk spring 101 is in compressive state, the fluid of loaded cylinder 102 under the effect of disk spring 101 in energy storage state, in this timer everywhere the pressure of fluid be to be controlled by the oil pressure of loaded cylinder 101.During all electromagnetically operated valve no powers, the pressure oil of the 3rd cavity III enters the left chamber of spool 404 by the hole of spool 404 cores, because the lifting surface area of spool 404 left ends is greater than the lifting surface area of right-hand member, so spool 404 moves right, the second cavity II is communicated with fuel tank 901, the oil of working cylinder 103 cavity of resorptions flows back to fuel tank 901, the oil of working cylinder 103 epicoeles is hydraulic oil, piston rod 108 will move down, be gate-dividing state, the speed that piston rod 108 moves down can be adjusted by separating brake choke valve 910.
When 408 energisings of combined floodgate electromagnetically operated valve, the pressure oil of the 3rd body cavity III enters the 4th cavity IV through combined floodgate electromagnetically operated valve 408, now the lifting surface area of spool 404 right-hand members is greater than the lifting surface area of left end, so spool 404 is to left movement, open the right side valve port of the second cavity II, close the left side valve port, the pressure oil of the 3rd cavity III enters the second cavity II, enter again the cavity of resorption of working cylinder 103, because the lifting surface area of piston rod 108 lower ends is greater than the lifting surface area of upper end, so piston rod 108 moves upward, it is "on" position, piston rod 108 speed of moving upward can be regulated by combined floodgate choke valve 911.
When the first separating brake electromagnetically operated valve 406 energising, the fluid of the 4th cavity IV enters fuel tank 901 by the first separating brake electromagnetically operated valve 406 through the first cavity I, now the lifting surface area of spool 404 right-hand members is less than the left end lifting surface area, so spool 404 moves right, opens the left side valve port of the second cavity II, close the right side valve port, the fluid of working cylinder 103 cavity of resorptions and fuel tank 901 are communicated with, and become low pressure oil, and working cylinder 103 epicoeles are hydraulic oil, so piston rod 108 moves downward, i.e. gate-dividing state.
After loaded cylinder 102 inner fluids are extruded, disk spring 101 is upspring, leave gradually compression,metal-to-metal position, the limit pull rod 801 that disk spring 101 drives in the pressure control assembly 8 be connected on contact disc 109 makes to move on positive stop strip 803, height point on positive stop strip 803 leaves the roller of magnetic blow-out switch 806, and magnetic blow-out switch 806 is switched on, and motor 601 starts to drive oil pump 902 work, continuation, to oiling in loaded cylinder 102, makes disk spring 101 compressed again.
The positive stop strip 803 of magnetic blow-out switch 806 is arranged on slide plate 802, no-voltage dead locking push rod 808 is equipped with in slide plate 802 upper ends, when disk spring 101 ejects maximum position, be that fluid in loaded cylinder 102 are not while having, the no-voltage dead locking push rod 808 on slide plate 802 tops will withstand the semicircle position of latch plate assembly 701 bottoms, latch plate assembly 701 slopes inwardly, copper shoe 113 bottoms that are arranged on piston rod 108 upper ends will be withstood in outstanding position, latch plate assembly 701 tops, prevent that piston rod 108 from moving down, and prevents separating brake.
The course of work of the present invention is as follows: oil pump 902 work under the drive of drive unit 6, pressure oil is simultaneously interior oil-filled to the 3rd cavity III and the loaded cylinder 102 of working cylinder 103 epicoeles, hydraulic valve assembly 4 by the oil circuit of fuel tank assembly 9 inside and working cylinder 103 inside, after fluid is full of electromagnetically operated valve assembly 4 and working cylinder 103 epicoeles, continue to be filled with in loaded cylinder 102, when butterfly spring 101 reaches maximum compressibility, motor 601 quits work, the fluid in loaded cylinder 102 under the effect of butterfly spring 101 in energy storage state; By energising or the outage of first and second separating brake electromagnetically operated valve 406,407, combined floodgate electromagnetically operated valve 408 in hydraulic valve assembly 4, make the spool 404 in hydraulic valve assembly 4 change off-position, make the cavity of resorption of working cylinder 103 be filled with and emit fluid; On piston rod 108 while being filled with fluid in working cylinder 103, move, due to the load connector 114 that is arranged on piston rod 108 upper ends with by the actuating switch, be connected, realize closing a floodgate; When emitting fluid, piston rod 108 moves down, and realizes separating brake.The upspringing or compress of butterfly spring 101 in mechanism body 1, drive opening or sealing of safety valve complement 11, guarantees that system works under the pressure of safety.Copper shoe 113 also is equipped with on the top of piston rod 108, pass through the transmission devices such as long rocking arm 1103, rotating shaft 1101 and long draw 1109 when moving up and down, each contact on auxiliary switch 1105 is switched on or switched off, so that the user accesses different control circuits at this by different requirements.In the upspringing or compress of butterfly spring 101, also with dynamic pressure, control opening or locking of assembly 8 and no-voltage dead locking assembly 7; (1) a plurality of magnetic blow-out switch 806 that can make pressure control assembly 8 complete and are switched on or switched off by different purposes and position; (2) can make no-voltage dead locking assembly 7 in system when not enough without oil pressure or fluid, moving down of limited piston bar 108, prevent that opening velocity from causing that electric arc is excessive excessively slowly, protection switch is not wounded by electric arc.When system oil pressure and oil mass recover normal, no-voltage dead locking assembly 7 automatically resets under the effect of return spring 506 and return push rod 505, recovers normal operation.
Claims (10)
1. the hydraulic spring grease cup powder operation device for high-voltage circuit-breaker switching on-off operation, it is characterized in that: comprise mechanism body (1), connection bracket assembly (5), auxiliary switch assembly (11), pressure is controlled assembly (8), hydraulic valve assembly (4), safety valve complement (10), no-voltage dead locking assembly (7), driving unit assembly (6) and fuel tank assembly (9), wherein fuel tank assembly (9) is installed on mechanism body (1), connection bracket assembly (5) is installed on the top of fuel tank assembly (9), hydraulic valve assembly (4), driving unit assembly (6), pressure control assembly (8) and safety valve complement (10) are fixed on respectively four sides of fuel tank assembly (9) clockwise successively, no-voltage dead locking assembly (7) and auxiliary switch assembly (11) are installed on connection bracket assembly (5) outside.
2. by the hydraulic spring grease cup powder operation device for the high-voltage circuit-breaker switching on-off operation claimed in claim 1, it is characterized in that: described mechanism body (1) has disk spring (101), loaded cylinder (102) and working cylinder (103), wherein loaded cylinder (102) coordinates respectively with two external cylindrical surfaces of working cylinder (103), the outer upper support ring (104) that is provided with of loaded cylinder (102), base (105) outside of working cylinder (103) is provided with load-bearing ring (106) and lower support ring (107) from inside to outside, disk spring (101) axially is limited in the mode of predeformation, lower support ring (104, 107) between, piston rod (108) is located in working cylinder (103), safety device nut sleeve (111) and limit pull rod nut sleeve (112) are housed on contact disc (109), and piston rod (108) top is connected with copper shoe (113) and load connector (114).
3. by the hydraulic spring grease cup powder operation device for the high-voltage circuit-breaker switching on-off operation claimed in claim 1, it is characterized in that: described connection bracket assembly (5), for having the frame structure (501) of base plate, is fixedly connected with fuel tank (901) upper surface of fuel tank assembly (9); Four sides of frame structure (501) are I shape, one of them H-shaped upright column is provided with slideway (504), one back shaft (503) is connected with frame structure (501), between connection bracket assembly (5) and fuel tank assembly (9) and and the piston rod (108) of mechanism body (1) between be provided with seal, the vent valve (502) of fuel tank assembly (9) is installed on base plate; The column outside that slideway (504) is installed in frame structure (501) is provided with a circular hole, and return spring (506) and no-voltage dead locking return push rod (505) inside are housed;
On frame structure (501) lower shoe, vent valve (502) is housed, position is in fuel tank (901) the top.
4. by the hydraulic spring grease cup powder operation device for the high-voltage circuit-breaker switching on-off operation claimed in claim 1, it is characterized in that: described auxiliary switch assembly (11) has unit switch (1105), unit switch fixed head (1110), rotating shaft (1101), long rocking arm (1103) and jointed gear unit, wherein unit switch (1105) is arranged on unit switch fixed head (1110), unit switch fixed head (1110) upper end is fixed on the column of back shaft (503) and frame structure (501), and lower end is fixed on fuel tank (901); Rotating shaft (1101) is rotated and is installed in (1102) holder; Long rocking arm (1103) top is connected with straight pin (1106), straight pin (1106) is movably placed in the groove of copper shoe (113) of piston rod (801) upper end, the other end of long rocking arm (1103) is fixedly connected with the different edge section on rotating shaft (1101) dish respectively with the power input of jointed gear unit, and the power output of jointed gear unit is fixedly connected with the mandrel of unit switch (1105).
5. by the hydraulic spring grease cup powder operation device for the high-voltage circuit-breaker switching on-off operation claimed in claim 1, it is characterized in that: described hydraulic valve assembly (4) has electromagnetically operated valve (401) and valve body (402), wherein (402 inside are provided with valve pocket (403) and spool (404) to valve body, form successively left cavity and the first～tetra-cavity (I～IV) between valve pocket (403) and spool (404), left cavity, at the left end of spool (404), is communicated with spool (404) core cavity; The first cavity (I) is positioned at a distolateral section of spool (404), adjacent with left cavity, the first cavity (I) is connected with the first separating brake electromagnetically operated valve (406) or the second separating brake electromagnetically operated valve (407), by the combined floodgate choke valve (911) of being located in fuel tank assembly (9), with fuel tank (901), is communicated with;
The second cavity (II) is communicated with the first cavity (I) while moving right at spool (404), at spool (404), while being moved to the left, with the 3rd cavity (III), is communicated with; The second cavity (II) is communicated with working cylinder (103) cavity of resorption by fluid pressure line;
The 3rd cavity (III) is communicated with spool (404) core cavity by the hole of spool (404) core, be provided with combined floodgate electromagnetically operated valve (408) between the 3rd cavity (III) and the 4th cavity (IV), the 3rd cavity (III) is connected with the epicoele of working cylinder (103), the inner chamber of loaded cylinder (102) by the separating brake choke valve (910) of being located in fuel tank assembly (9);
The 4th cavity (IV) is positioned at a termination section of spool (404), by the first separating brake electromagnetically operated valve (406), with the first cavity (I), is connected.
6. by the hydraulic spring grease cup powder operation device for the high-voltage circuit-breaker switching on-off operation claimed in claim 1, it is characterized in that: described pressure is controlled assembly (8) and is had magnetic blow-out switch (806), limit pull rod (801), slide plate (802), positive stop strip (803), support bar (804), fixed head (805) and side plate (807), wherein biside plate (807) is assembled into closed-in construction with support bar (804) and fixed head (805), a plurality of magnetic blow-out switch (806) are fixed on upper and lower two fixed heads (805) side by side, the upper fixing a plurality of positive stop strips (803) with different spacing height of slide plate (802), each positive stop strip (803) is the roller of corresponding each magnetic blow-out switch bottom respectively, the top of slide plate (802) is equipped with no-voltage dead locking push rod (808), and this no-voltage dead locking push rod (808) coordinates with the latch plate in no-voltage dead locking assembly (7).
7. by the hydraulic spring grease cup powder operation device for the high-voltage circuit-breaker switching on-off operation claimed in claim 1, it is characterized in that: described no-voltage dead locking assembly (7) is positioned at the top that pressure is controlled assembly (8), be fixed on the frame structure (501) of connection bracket assembly (5), there is latch plate assembly (701, three facades for U-shaped bending, one of them side elevation extend horizontally away a semi-cylindrical hill, and its lower surface corresponding pressure is controlled the no-voltage dead locking push rod (808) in assembly (8); Opposite side facade top has ledge, this ledge and copper shoe (113) the bottom butt that is arranged on piston rod (108) top.
8. by the hydraulic spring grease cup powder operation device for the high-voltage circuit-breaker switching on-off operation claimed in claim 1, it is characterized in that: described safety valve complement (10) is installed on the side of fuel tank assembly (9), there is valve seat (1001), valve rod (1007), valve pocket (1013), valve rod apical axis (1010), pull bar (1003) and lever (1006), wherein valve rod (1007) and valve rod apical axis (1010) are located in valve seat (1001) inner chamber, one end of valve rod apical axis (1010) and valve rod (1007) butt, the outer valve pocket (1013) that is provided with of valve rod (1007), the protrusion position, end of valve pocket (1013) one ends and valve rod (1007) offsets, the other end is provided with valve pocket flange (1011), be provided with the apical axis spring (1008) that makes valve rod apical axis (1010) that thrust to the right be arranged between valve pocket flange (1011) and valve rod apical axis (1010), be arranged with the valve rod spring (1009) that can make valve pocket (1013) and valve rod (1007) tight seal on the valve rod (1007) of apical axis spring (1008) inside, the cylindrical of valve pocket (1013) is provided with sealing ring, with the upper corresponding hole of fuel tank (901), matches,
The fulcrum of lever (1006) and valve seat (1001) are rotationally connected, power arm cylinder lever connecting rod (1003), and resistance arm is placed in the groove of valve rod apical axis (1010); The contact disc (109) of the bottom of pull bar (1003) and disk spring (101) upper end is connected.
9. by the hydraulic spring grease cup powder operation device for the high-voltage circuit-breaker switching on-off operation claimed in claim 1, it is characterized in that: described fuel tank assembly (9) is arranged on the upper end of working cylinder (103) in mechanism body (1), there is fuel tank (901), oil pump (902), separating brake choke valve (910), combined floodgate choke valve (911), fuel outlet valve (908), rectifier bridge (906), line bank (907), oil window (908), fuel tank inner sleeve (903), combined floodgate buffering ring (904) and fuel tank inner flange (905), wherein fuel tank (901) outside is the cubic configuration of positive square bottom surface, oil pump (902) is arranged on fuel tank (901) inside, rectifier bridge (906), line bank (907) are located at fuel tank (901) outside, and fuel outlet valve is located at fuel tank (901) outer wall bottom, and oily window (908) is located at fuel tank (901) outer wall top, cylindrical oil pocket middle part is provided with the fuel tank inner sleeve (903) that can place piston rod (108), and fuel tank inner sleeve (903) bottom is coaxially installed with combined floodgate buffering ring (904), and top is coaxially installed with fuel tank inner flange (905), fuel tank (901) has a plurality of oil circuit through holes, and combined floodgate choke valve (911), separating brake choke valve (910) are located at respectively on fuel tank (901) internal hydraulic pressure pipeline.
10. by the hydraulic spring grease cup powder operation device for the high-voltage circuit-breaker switching on-off operation claimed in claim 1, it is characterized in that: described driving unit assembly (6) has motor (601), its output shaft is connected with pinion (602), pinion (602) and internal tooth eccentric shaft (603) engagement, the oil pump (902) that internal tooth eccentric shaft (603) band dynamicthrust push rod (604) promotes in fuel tank assembly (9) moves reciprocatingly; Above-mentioned output shaft, pinion (602) and internal tooth eccentric shaft (603) are located in housing (605), the upper and lower end face of housing (605) is by electric motor end cap (606) and gear shaft bottom end cover (607) sealing, and thrust push rod (604) is placed through outside housing (605).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310414839.5A CN103441005B (en) | 2013-09-12 | 2013-09-12 | Hydraulic spring operation device applied to operation of opening and closing high-voltage circuit breaker |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310414839.5A CN103441005B (en) | 2013-09-12 | 2013-09-12 | Hydraulic spring operation device applied to operation of opening and closing high-voltage circuit breaker |
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| CN103441005A true CN103441005A (en) | 2013-12-11 |
| CN103441005B CN103441005B (en) | 2015-07-15 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104465245A (en) * | 2014-12-24 | 2015-03-25 | 丹东金桥车辆配件有限公司 | Hydraulic electromagnetic reversing mechanism for high-voltage circuit breaker hydraulic spring operation device |
| CN105003478A (en) * | 2015-06-30 | 2015-10-28 | 河南平高电气股份有限公司 | Control valve and circuit breaker hydraulic operating mechanism using control valve |
| CN105719856A (en) * | 2015-12-15 | 2016-06-29 | 中国西电电气股份有限公司 | Pressure release control system and method for hydraulic spring operation mechanism |
| CN106783420A (en) * | 2016-12-21 | 2017-05-31 | 河南平高电气股份有限公司 | A kind of breaker spring energy-storage type hydraulic actuating mechanism |
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|---|---|
| CN103441005B (en) | 2015-07-15 |
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Effective date of registration: 20190903 Address after: 014030 No. 12 Qingshan Road, Qingshan District, Baotou City, Inner Mongolia Autonomous Region Patentee after: Baotou Jinsheng Vehicle Parts Co., Ltd. Address before: Dandong City, Liaoning province 118009 century Port Industrial Park Road No. 107 Patentee before: Dadong Jinqiao Vehicle Parts Co., Ltd. |
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