CN101958198B - Three-station mechanism adopting double-turbine-worm mode - Google Patents
Three-station mechanism adopting double-turbine-worm mode Download PDFInfo
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- CN101958198B CN101958198B CN 201010289983 CN201010289983A CN101958198B CN 101958198 B CN101958198 B CN 101958198B CN 201010289983 CN201010289983 CN 201010289983 CN 201010289983 A CN201010289983 A CN 201010289983A CN 101958198 B CN101958198 B CN 101958198B
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Abstract
The invention relates to a three-station mechanism adopting a double turbine-turbine-worm mode. The mechanism comprises a case cover, as well as a front plate, a middle plate and a rear plate which are arranged in the case cover. In the invention, motor gears on bottom output shafts of motors on two sides are respectively matched with gears on small shafts on the two sides; the rotary motions of the two small shafts are respectively transmitted to two worms through a clutch device and drive a left turbine and a right turbine which are respectively matched with the worms to rotate; driving plates are arranged between the turbines and crank arms at two sides; the left crank arm and the right crank arm are provided with pins which respectively move in chutes of the driving plates; a large gear is fixed on a driving shaft behind the driving plates and engaged with a small gear; and the small gear is fixed between the middle plate and the rear plate through an output shaft. The three-station mechanism not only can be used for realizing the interlocking function of an isolating switch and a grounding switch, but also can be used for realizing large-angle output and has better system stability.
Description
Technical field
The present invention relates to the SF of the above electric pressure of a kind of 110kV
6Cubicle Gas-Insulated Switchgear particularly relates to a kind of SF
6Three position mechanism on the Cubicle Gas-Insulated Switchgear.
Background technology
Existing SF
6Three position mechanism on the Cubicle Gas-Insulated Switchgear mostly adopts the technology of companies such as ABB, Toshiba, Siemens, Alstom; Drive mechanism is most to use worm and gear transmission, gear drive or feed screw nut, but the technology of these companies exists such or such problem.Major defect is following: 1, isolating switch does not overlap with earthed switch separating brake position, and mechanical position limitation is unreliable.Three position mechanism as shown in Figure 1, what it used is gear drive.What its structure was used in the separating brake position of isolating switch and earthed switch is to cut off motor power and concavo-convex method of taking turns mechanical position limitation with guide vane end stop top limit switch; This method can guarantee that the position of switch is not excessive; But when heavier or other situation of load occurring; Situation of just stopping not in place might occur, when limit switch switches in advance, roller shown in Figure 1 can occur and can not be pressed onto the situation on the guide vane end stop.When load postpones to switch than light or limit switch, can occur roller again and squeeze firmly on guide vane end stop, cause roller or other link to damage easily.2, damaging or the overshoot of motor inertia appears in limit switch, and mechanism and switch pole are prone to danger.Three position mechanism as shown in Figure 1; Damaging appears in the magnetic blow-out switch of mechanism's ground connection, isolation separating brake position easily; Mechanism can directly go to from contact of earth and isolate combined floodgate or go to contact of earth from isolating to close a floodgate in operation; And this three position mechanism of the same type can't adopt the mechanical position limitation way in ground connection, isolation separating brake position, with the use that directly has influence on switch; Mechanism's motor when closing operation can stop answering off-position not put; Mechanism, switch contact top will be hindered; The spacer pin that has among Fig. 1 can use restraint when closing a floodgate in mechanism's ground connection, isolation; But can't guarantee that also mechanism can not dash forward, even or spacing lived also can with the motor sintering with draw bad mechanism element.3, not self-locking of mechanism perhaps needs manual force very big.Three position mechanism as shown in Figure 1, Fig. 1 a are the earthed switch closing position, and Fig. 1 b is ground connection and isolating switch separating brake position; Fig. 1 c is the isolating switch closing position, it is through gear transmission moment, and gear is not self-locking; Mechanism can go back under the promotion of reaction force, if be in static state after letting mechanism put in place, method is to lower motor speed; But so then can strengthen manual operation power, make hand very hard.4, mechanical operation is unreliable.Typical crank sheave drive mechanism three position mechanism as shown in Figure 2; Because mechanism is in free state in ground connection, isolation separating brake position; Receiving to make mechanism's output offset under the external force effect, thereby the roller of mechanism's power transmission crank when closing a floodgate has got into not in the groove of sheave.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of can realize the interlock function of isolating switch and earthed switch and can realize the switch three position mechanism that wide-angle is regulated and machinery is threaded off and protected to above-mentioned prior art present situation.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of three position mechanism that adopts the double worm and gear pattern; Comprise the case cover and be positioned at header board, intermediate plate and the back plate that the case cover is separated into the case cover in three spaces; It is inboard that said back plate leans against said case cover, it is characterized in that:
Two motors are separately fixed on the position, both sides between intermediate plate and the back plate, the motor gear that has on the bottom output shaft of the motor on the position, said both sides respectively with the little axle at position, both sides on gear be complementary;
Two little axles and two worm screws on the position, both sides are separately fixed between intermediate plate and the header board; Rotatablely moving of two little axles drives to two worm screws respectively through clutch apparatus; And the left side that drive and worm screw are matched respectively, the rotation of the worm gear on right side, the worm gear on the worm gear in left side and the connecting lever in left side, right side is installed between intermediate plate and the header board with the connecting lever on right side is coaxial respectively;
Drive plate is installed in the position, axis of this three position mechanism through driving shaft; And between the worm gear and connecting lever of both sides; The both sides of said drive plate have skewed slot respectively, are separately installed with pin on the connecting lever on left side, right side and in the elongated slot of said drive plate, move;
On the driving shaft at said drive plate rear, said intermediate plate and back be fixed with a gear wheel between the plate, said gear wheel is meshed with a pinion, said pinion is fixed on said intermediate plate through output shaft and afterwards between the plate.Such three position mechanism not only can be realized the interlock function of isolating switch and earthed switch, and can realize the output of wide-angle and have the better stability of a system.
Preferably; Little axle on the position, said both sides is installed between intermediate plate and the header board through clutch base, the positioning seat of both sides respectively; Worm screw on the position, said both sides is installed between intermediate plate and the header board through bearing pedestal, the middle base of both sides respectively, and said bearing pedestal, middle base, clutch base and positioning seat be parallel interval distribution from top to bottom successively.
For can clutch better when separating brake and the "on" position; Said clutch apparatus comprises clutch sleeve, location recognition plate, screw rod, back-moving spring and little connecting lever; Said screw rod is fixed between said middle base and the clutch base; Said back-moving spring also is placed in the outside of said screw rod, and said location recognition plate is bending-type parts, and it vertically partly is positioned at the outside of said worm screw and should be fixed with two separated between the upper and lower adjustment screws that are provided with in the vertical part outside; Its lateral part is inserted between middle base and the clutch base; The lateral part of location recognition plate and clutch sleeve fix and supply screw rod to pass, and the upper and lower of said clutch sleeve has elongated slot respectively, and the pin that worm screw bottom and little axle top have is inserted into respectively in the elongated slot of said clutch sleeve upper and lower; Said back-moving spring is divided into two sections; Between the upper surface that a section is butted on said middle base and location recognition plate lateral part respectively, another section is butted on respectively between the lower surface and said clutch base of said location recognition plate lateral part, and little connecting lever is installed on the intermediate plate through screw; And an end of little connecting lever matches with the adjustment screw of said location recognition plate, and two pins that are provided with at interval on the other end of little connecting lever and the said worm gear match.
In order to make clutch sleeve can successfully throw off rotating little axle or worm screw, an end face of said clutch sleeve is the dextrorotation cam, and another end face is left-handed cam.
Preferably; Two apertures that have big breach and big breach both sides on the lateral part of said location recognition plate; Said big breach is embedded in groove that said clutch sleeve outer surface has and fixes with said clutch sleeve, is equipped with in the said aperture to supply screw rod to pass in nylon jacket and the said nylon jacket.
More stable for the cooperation that makes drive plate and worm screw, have good guide effect, the two sides of said drive plate such as are at cambered surface.
Compared with prior art; The invention has the advantages that: this mechanism design a kind of worm and gear transmission and clutch structure that is not limited by limit switch; The combined floodgate and the separating brake position of isolating switch and earthed switch can not changed because of load variations; Also not can because of limit switch in advance or postpone to switch and change, guaranteed the reliability and the safety of switch; Improved traditional crank pit wheel construction; Make in the groove of the turnover sheave that the roller of mechanism's crank when divide-shut brake can be safe and reliable; Can guarantee ground connection separating brake and the consistency of isolating separating brake again, and adopt the change of gear ratio, satisfy the demands of different of output angle.
Description of drawings
Fig. 1 is a three position mechanism structural representation of the prior art.
Fig. 2 is the structural representation of another kind of three position mechanism in the prior art.
Fig. 3 is the vertical view cutaway drawing of three position mechanism of the present invention.
Fig. 4 is the cutaway view of three position mechanism of the present invention along A-A line among Fig. 3.
Fig. 5 is the cutaway view of three position mechanism of the present invention along B-B line among Fig. 3.
Fig. 6 is the cutaway view of three position mechanism of the present invention along C-C line among Fig. 3.
Fig. 7 is the branch of ground connection and the isolating switch of three position mechanism of the present invention, mechanism's view of mechanism when closing a floodgate; The state diagram of mechanism when wherein Fig. 7 a is the earthed switch combined floodgate; 7b is earthed switch, the state diagram of mechanism when isolating switch is in separating brake, and 7c is the state diagram that isolating switch is in mechanism when closing a floodgate.
Fig. 8 is the sketch map of junction panel under isolation, earthed switch separating brake and "on" position, and wherein 8a is the state that earthed switch and isolating switch all are in separating brake, and 8b is that earthed switch is in "on" position, and 8c is the state that isolating switch is in combined floodgate.
1 --- rear plate? 2 --- intermediate plate? 3 --- front plate? 4 --- output shaft? 5 --- large gear? 6 --- pinion? 7 --- drive shaft 8 - - driver board? 9 --- Right worm shaft? 10 --- Left worm shaft? 11 --- Worm? 12 --- crank arm? 13 --- bearing? 14 --- Worm? 15 - - location identification plate? 16 --- small crank arm? 17 --- middle seat? 18 --- return spring? drive pin 20 --- 19 --- nylon sleeve? 21 --- clutch cover? 22 - - Clutch Block? 23 --- Gear? 24 --- positioning seat? shaft 26 --- 25 --- small chain plate? 27 --- dowel pins? 28 --- base? 29 --- indication axis? 30 --- indicator? 31 --- pinion? 32 --- relay? 33 --- motor? 34 --- motor gear? 35 --- motor fixing plate? 36 --- bevel gear? 37 - - screw shaft 38 --- bevel gear crank arm? 39 --- magnetic blow switch? 40 --- eccentric? 41 --- adjustable head? 42 --- Rod? base 44 --- 43 --- bevel gear? 45 --- bevel gear? 46 --- rod? 47 --- magnetic blow switch? 48 --- cover? 49 --- pinion? 50 --- Auxiliary switch? 51 --- Box hood? 52 --- off? 53 --- Auxiliary switch mounting plate? 54 --- off? 55 --- chute 55
Embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
This three position mechanism comprises case cover 51, and the internal structure of mechanism is a three-ply board parcel form, and parts all are installed between header board 3, the intermediate plate 2 back plates 1.Two motors 33 utilize motor fixing plate 35 to be fixed on the dual-side position of back plate 1 respectively; And have motor gear 34 on two motor 33 output shafts; On motor gear 34 and the little axle 25 with gear 23 pairings use, rotate thereby motor gear 34 drives little axle 25.Little axle 25 is installed between intermediate plate 2 and the header board 3 through clutch base 22, positioning seat 24, and respectively has one group with motor 33 supporting both sides.Worm screw 14 is installed between intermediate plate 2 and the header board 3 through bearing pedestal 13, middle base 17; The top of little axle 25 and the bottom of worm screw 14 all are inserted in the clutch sleeve 21; And little axle 25 respectively has a trundle 19 with worm screw 14; The top and the bottom of clutch sleeve 21 have two elongated slots that extend along clutch sleeve 21 length directions respectively; The trundle 19 of little axle 25 tops and worm screw 14 bottoms is inserted into respectively in the elongated slot on clutch sleeve 21 bottoms and top, makes under the situation that clutch sleeve 21 does not unclamp, and rotatablely moving of little axle 25 done equidirectional rotatablely moving through clutch sleeve 21 drive worm screws 14.Worm gear 11 more matches near the axis and with worm screw 14 with respect to worm screw 14; The worm gear 11 on the left side and the connecting lever 12 on right side are installed between intermediate plate 2 and the header board 3 through left worm-wheel shaft 10, and the worm gear 11 on the right and the connecting lever 12 on right side are installed between intermediate plate 2 and the header board 3 through right worm-wheel shaft 9.The reverse motions that rotatablely moves and connecting lever 12 is done perpendicular to worm screw 14 motions of worm screw 14 through worm gear 11.Drive plate 8 is arranged on the axis; It is installed between intermediate plate 2 and the header board 3 through driving shaft 7; And the both sides of drive plate 8 have a skewed slot 55 respectively; The pin of installing on left side and the connecting lever 12 on right side 52 moves in the skewed slot 55 of drive plate 8 respectively, is the reverse motions of driving shaft 7 with the movement conversion of worm gear 11.
Respectively there is a cover clutch apparatus on the both sides of said three position mechanism between intermediate plate 2 and header board 3, and it is made up of clutch sleeve 21, location recognition plate 15, screw rod, nylon jacket 20, back-moving spring 18, little connecting lever 16.Said screw rod is fixed between middle base 17 and the clutch base 22, and the said screw rod outside is with back-moving spring 18.The elongated slot of said clutch sleeve 21 through two ends is inserted with trundle 19 respectively and links to each other with little axle 25 with worm screw 14; Said location recognition plate 15 is the parts of a bending; A vertical part is positioned at the outside of said worm screw 14; And vertically outside of part have the adjustment screw of two fixed interval up and down, and the horizontal part of said location recognition plate 15 is between said middle base 17 and said clutch base 22.The lateral part of location recognition plate 15 has a big breach and both sides each aperture of difference; The big breach embeddeding clutch of location recognition plate 15 overlaps location recognition plate 15 and said clutch sleeve 21 is fixed; Aperture and nylon jacket 20 interior screw rods altogether that nylon jacket 20 is put location recognition plate 15 into pass; Back-moving spring 18 is two sections; Between the lateral part upper surface that a section is butted on middle base 17 and location recognition plate 15 respectively, another section is butted between the lateral part lower surface and clutch base 22 of location recognition plate 15.Little connecting lever 16 is installed on the intermediate plate 2 through screw pin; One end of little connecting lever 16 is complementary with this adjustment screw between two adjustment screws of said location recognition plate 15; The other end of little connecting lever 16 and matches with this pin 54 between two of worm gear 11 pins 54 that are provided with at interval.Rotatablely moving of connecting lever 12 is transformed into the rectilinear motion up and down of location recognition plate 15 through pin 52 and little connecting lever 16.An end face of clutch sleeve 21 is the dextrorotation cam; Another end face is left-handed cam; Preferably, the upper surface of the clutch sleeve 21 that said left side earthed switch uses is the dextrorotation cam, and the lower surface is left-handed cam; Clutch sleeve 21 upper surfaces that the right side isolating switch uses are left-handed cam, and the lower surface is the dextrorotation cam.When location recognition plate 15 had been with clutch sleeve 21 perhaps upwards to remove downwards, the trundle 19 on trundle 19 of worm screw 14 or the little axle 25 will overlap 21 elongated slot by holdback clutch, reaches the effect of clutch; After external force was removed, location recognition plate 15 set back under the reset force effect of back-moving spring 18 with clutch sleeve 21.On the driving shaft 7 at drive plate 8 rears; Between said intermediate plate 2 and back plate 1; Gear wheel 5 also is installed; Gear wheel 5 and a pinion 6 engagement, pinion 6 is fixed between intermediate plate 2 and the back plate 1 through output shaft 4, and driving shaft 7 is done moves through gear wheel 5 and passes to output shaft 4 with the pinion 6 of gear wheel 5 engagements and make output movement.Shown in Fig. 3-6, the clutch apparatus in left side and motor etc. provide the power and the operating mechanism of divide-shut brake for earthed switch, and the clutch apparatus on right side and motor equipotential isolating switch provide the power and the operating mechanism of divide-shut brake.And the both sides of said drive plate 8 have cambered surfaces such as two, drive in the rotation of worm gear 11 and play good guide effect when drive plate 8 rotates.
Between header board 3 and case cover 51, also be provided with bevel gear connecting lever 38, magnetic blow-out switch 39, eccentric wheel 40 regulates 41, pull bar 42, base 43, bevel gear 44, bevel gear 45, bar 46, magnetic blow-out switch 47, cover plate 48, pinion 49, auxiliary switch 50.The setting of these parts and be connected to the conventional technological means in this area, therefore the technological means that this area is habitual is not done at this and is given unnecessary details.
Operating principle: referring to Fig. 7; Wherein Fig. 7 a is the state diagram that earthed switch is in mechanism when closing a floodgate; Fig. 7 b is the state diagram that earthed switch, isolating switch are in separating brake position structure on opportunity, and Fig. 7 c is the state diagram that isolating switch is in mechanism when closing a floodgate, in the middle of practical application; Can be according to the use location, with mechanism's mirror image.That is to say that both sides can both operational grounding switch and isolating switch.Among Fig. 7 b, the pin 52 of the right and left all is in the summit upper end of the skewed slot 55 of drive plate 8, so drive plate 8 can not rotate, and this state is the situation that earthed switch and isolating switch are in gate-dividing state simultaneously.
1, the combined floodgate of earthed switch motion: motor 33 energisings on the left side; When making motor gear 34 do counterclockwise to move, the connecting lever 12 in left side is that motion is clockwise done in the axle center with left worm-wheel shaft 10, when 55 times trough rims of the skewed slot that moves to drive plate 8; Pin 52 can slip in the skewed slot 55 of drive plate 8; Sell the strong effect of 52 pairs of drive plates 8,, drive drive plate 8 and do counterclockwise rotatablely moving with the driving shaft 7, the gear wheel 5 that are connected above that along with moving downward of connecting lever 12; Gear wheel 5 drives the pinion 6 that is engaged with and does clockwise motion with output shaft 4, and the motion of output shaft drives earthed switch and does the motion of closing a floodgate.When moving to shown in Fig. 7 a state, be contained in pin 54 on the worm gear 11 this moment and drive on the adjustment screw of below that little connecting lever 16 withstands on location recognition plate 15, little connecting lever 16 is done motion counterclockwise; Promoting location recognition plate 15 moves downward; Location recognition plate 15 moves downward drive clutch sleeve 21 and moves downward, the trundle 19 that clutch sleeve 21 is thrown off on the worm screws 14, and rotatablely moving of little axle 25 can not be delivered on the worm screw 14; Worm screw 14 is no longer rotated; Drive plate 19 motions are by pin 52 restrictions, and limit switch switches to the motor outage in the time of therewith, closes a floodgate and accomplishes.
2, the separating brake of earthed switch motion: motor 33 energisings on the left side, when motor gear 34 was moved clockwise, the connecting lever 12 in left side was that motion is counterclockwise done in the axle center with left worm-wheel shaft 10; Sell the strong effect of 52 pairs of drive plates 8, make drive plate 8 do clockwise rotatablely moving, along with moving upward of connecting lever 12; Drive drive plate 8 and do clockwise rotatablely moving with the driving shaft 7, the gear wheel 5 that connect above that, gear wheel 5 drives the pinion 6 that is engaged with and does counterclockwise motion with output shaft 4, and the motion of output shaft 4 drives earthed switch and does the separating brake motion; When moving to shown in Fig. 7 b state, the pin 52 on the left side connecting lever 12 drives pin 54 on the worm gears 11 makes little connecting lever 16 withstand on the going up on the adjustment screw of location recognition 15 of location recognition plate, and little connecting lever 16 moves clockwise; Promoting location recognition plate 15 moves upward; Location recognition plate 15 moves upward and drives clutch sleeve 21 and move upward, and makes clutch sleeve 21 throw off the trundle 19 on the little axle 25, and rotatablely moving of little axle 25 can not be delivered on the worm screw 14 again; Worm screw 14 is no longer rotated; Drive plate 8 is by pin 52 restrictions, and limit switch switches to the motor outage in the time of therewith, and separating brake is accomplished.
3, the divide-shut brake of isolating switch motion: the divide-shut brake motion of isolating switch is the same with the divide-shut brake motion mode of earthed switch, be isolating switch used be the another set of parts that the motor 33, motor gear 34 and the right side connecting lever 12 that are positioned at the right side and right turbine wheel shaft 9 etc. are positioned at the right side.
4, manual operation: shake little axle 25 with a crank and make it do to move clockwise or counterclockwise, drive worm screw 14 and do to move clockwise or counterclockwise, make connecting lever 12 motions; Drive plate 8 is done counterclockwise or motion clockwise thereby drive; After reaching fixed angle of output shaft output, through moving up and down of clutch arm-tie, push open clutch sleeve 21 make its not with one of them trundle 19 interlock; Reach the disengagement transmission, end the effect of transmission.
5, the interlocking of left and right sides operation: as shown in Figure 8, Fig. 8 be the front view of junction panel 26 of Fig. 5 bottom of this mechanism, and two holes can expose the little axle 25 in left side and little 25 of right side respectively about having on this junction panel 26.Shown in Fig. 8 a; This state is that switch is in gate-dividing state among the figure, and at this state, the little axle 25 in left side and the little axle 25 on right side all expose at hole; So both can operate the worm screw on the left side; Also can operate the worm screw on the right, but but both that is to say and to close a floodgate disconnecting switch operation also the operational grounding switch closes a floodgate that this has satisfied the requirement of switch to operation.After the worm and gear operation on the left side was closed a floodgate earthed switch, after the little axle 25 on the right just was hidden in this junction panel 26, the worm and wormwheel on the right just can not have been operated, state shown in Fig. 8 b.After the worm and wormwheel operation on the right was closed a floodgate isolating switch, the worm and wormwheel on the left side just can not have been operated, state shown in Fig. 8 c equally.This has satisfied switchgear " can not the operational grounding switch when isolating switch closes a floodgate, have only behind the isolating switch separating brake requirement of could the operational grounding switch closing a floodgate ".This structure makes isolating switch and earthed switch that natural interlock arranged, and has both reduced mechanism's quantity, has dwindled the volume of whole switch, has reached the interlocking of isolating switch and earthed switch again, the misoperation of having avoided switch to occur.
This mechanism design a kind of worm and gear transmission and clutch structure that is not limited by limit switch; The combined floodgate and the separating brake position of isolating switch and earthed switch can not changed because of load variations; Also not can because of limit switch in advance or postpone to switch and change, guaranteed the reliability and the safety of switch; Improve traditional crank pit wheel construction, made in the groove of the turnover sheave that the roller of mechanism's crank when divide-shut brake can be safe and reliable, can guarantee ground connection separating brake and the consistency of isolating separating brake again.And adopt the change of gear ratio, satisfy the demands of different of output angle.
Although more than described the preferred embodiments of the present invention in detail, should be expressly understood that for a person skilled in the art, the present invention can have various changes and variation.All any modifications of within spirit of the present invention and principle, being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. three position mechanism that adopts the double worm and gear pattern; Comprise case cover (51) and be positioned at header board (3), intermediate plate (2) and the back plate (1) that case cover (51) is separated into case cover (51) in three spaces; Said back plate (1) leans against said case cover (51) inboard, it is characterized in that:
Two motors (33) are separately fixed on the position, both sides between intermediate plate (2) and back plate (1), the motor gear (34) that has on the bottom output shaft of the motor (33) on the position, said both sides respectively with the position, both sides on little axle (25) on gear (23) be complementary;
Two little axles (25) and two worm screws (14) on the position, both sides are separately fixed between intermediate plate (2) and the header board (3); Two little rotatablely moving of (25) of axle drive to two worm screws (14) respectively through clutch apparatus; And the left side that drive and worm screw (14) are matched respectively, the rotation of the worm gear (11) on right side, the connecting lever (12) in worm gear in left side (11) and left side, the worm gear (11) on right side and the connecting lever (12) on right side is coaxial respectively is installed between intermediate plate (2) and the header board (3);
Drive plate (8) is installed in the position, axis of this three position mechanism through driving shaft (7); And be positioned between the worm gear (11) and connecting lever (12) of both sides; The both sides of said drive plate (8) have skewed slot (55) respectively, are separately installed with pin (52) on the end of the connecting lever on left side, right side (12) and in the skewed slot of said drive plate (8), move;
The driving shaft (7) at said drive plate (8) rear is gone up, said intermediate plate (2) with afterwards be fixed with a gear wheel (7) between the plate (1); Said gear wheel (7) is meshed with a pinion (6), and said pinion (6) is fixed between said intermediate plate (2) and the back plate (1) through output shaft (4).
2. three position mechanism as claimed in claim 1; It is characterized in that: the little axle (25) on the position, said both sides is installed between intermediate plate (2) and the header board (3) through clutch base (22), the positioning seat (24) of both sides respectively; Worm screw (14) on the position, said both sides is installed between intermediate plate (2) and the header board (3) through bearing pedestal (13), the middle base (17) of both sides respectively, and said bearing pedestal (13), middle base (17), clutch base (22) and positioning seat (24) be parallel interval distribution from top to bottom successively.
3. three position mechanism as claimed in claim 2; It is characterized in that: said clutch apparatus comprises clutch sleeve (21), location recognition plate (15), screw rod, back-moving spring (18) and little connecting lever (16); Said screw rod is fixed between said middle base (17) and the clutch base (22); Said back-moving spring (18) is placed in the outside of said screw rod; Said location recognition plate (15) is bending-type parts; It vertically partly is positioned at the outside of said worm screw (14) and should be fixed with two separated between the upper and lower adjustment screws that are provided with in the vertical part outside, and its lateral part is inserted between middle base (17) and the clutch base (22), and the lateral part of location recognition plate (15) and clutch sleeve (21) fix and supply screw rod to pass; The upper and lower of said clutch sleeve (21) has elongated slot respectively; Worm screw (14) bottom is inserted into respectively in the elongated slot of said clutch sleeve (21) upper and lower with the pin (19) that little (25) top has, and said back-moving spring (18) is divided into two sections, between the upper surface that a section is butted on said middle base (17) and location recognition plate (15) lateral part respectively; Another section is butted on respectively between the lower surface and said clutch base (22) of said location recognition plate (15) lateral part; Little connecting lever (16) is installed on the intermediate plate (2) through screw, and an end of little connecting lever (16) matches with the adjustment screw of said location recognition plate (15), and the other end of little connecting lever (16) is gone up two pins (54) that are provided with at interval with said worm gear (11) and matched.
4. three position mechanism as claimed in claim 3 is characterized in that: an end face of said clutch sleeve (21) is the dextrorotation cam, and another end face is left-handed cam.
5. three position mechanism as claimed in claim 4; It is characterized in that: two apertures that have big breach and big breach both sides on the lateral part of said location recognition plate (15); Said big breach is embedded in groove that said clutch sleeve (21) outer surface has and fixes with said clutch sleeve (21), is equipped with in the said aperture to supply screw rod to pass in nylon jacket (20) and the said nylon jacket (20).
6. like each described three position mechanism of claim 1-5, it is characterized in that: the two sides of said drive plate (8) such as are at cambered surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010289983 CN101958198B (en) | 2010-09-17 | 2010-09-17 | Three-station mechanism adopting double-turbine-worm mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010289983 CN101958198B (en) | 2010-09-17 | 2010-09-17 | Three-station mechanism adopting double-turbine-worm mode |
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| Publication Number | Publication Date |
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| CN101958198A CN101958198A (en) | 2011-01-26 |
| CN101958198B true CN101958198B (en) | 2012-12-19 |
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| CN 201010289983 Active CN101958198B (en) | 2010-09-17 | 2010-09-17 | Three-station mechanism adopting double-turbine-worm mode |
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| KR101604278B1 (en) | 2011-12-30 | 2016-03-18 | 엘에스산전 주식회사 | 3 position actuator for switchgear |
| CN102646541B (en) * | 2012-04-23 | 2015-12-02 | 陕西得瑞电力设备有限责任公司 | A kind of three-station electric spring operating mechanism |
| CN112563066B (en) * | 2020-12-04 | 2023-12-29 | 武汉倍诺德开关有限公司 | Miniaturized multistation operating device |
| CN114165562B (en) * | 2021-11-23 | 2024-02-20 | 上海益君电气有限公司 | Angle-adjustable gear pair transmission chain output device |
| CN116137773B (en) * | 2023-04-18 | 2023-07-04 | 达州骏驰科技有限公司 | Automobile radar core detection structure |
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| DE19534392A1 (en) * | 1995-09-16 | 1997-03-20 | Abb Patent Gmbh | Drive for the movable contact piece of an isolating earthing switch |
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| CN1866433A (en) * | 2006-04-07 | 2006-11-22 | 西安西开高压电气股份有限公司 | Electric operating mechanism |
| CN200941536Y (en) * | 2006-07-27 | 2007-08-29 | 上海西安高压电器研究所有限责任公司 | Three-station operator for gaseous insulated metallic packed switching gear |
| CN201084577Y (en) * | 2007-08-10 | 2008-07-09 | 廖明厚 | A drive and clutch of three-stations mechanism |
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