CN205666150U - Motor formula high -voltage direct -current relay - Google Patents

Abstract

The utility model discloses a motor formula high -voltage direct -current relay, which comprises an outer shell, be equipped with movable contact assembly, static contact assembly and drive assembly in the shell, movable contact assembly includes the movable contact spring, the upper end of movable contact spring and catch bar is fixed mutually, and the catch bar lower extreme is fixed with the rack, drive assembly includes the motor, the output shaft of motor passes through worm and rack linkage, the axis of worm and the axis parallel arrangement of catch bar.

Description

Motor type HVDC relay

Technical field

This utility model relates to a kind of HVDC relay, be specifically related to a kind of by motor be sound contact or Disjunction provides the motor type HVDC relay of power.

Background technology

Current relay mostly is electromagnetic type relay, including coil, magnetic conductive cylinder, dynamic iron core, is fixed in dynamic iron core Catch bar, being fixed on the movable contact spring on catch bar top, the movable contact being fixed on movable contact spring and stationary contact etc., during work, coil leads to Electroinitiation electromagnetic induction effect, so that dynamic iron core moves up and down in magnetic conductive cylinder, so that movable contact spring drives movable contact and stationary contact Point cantact, or coil blackout is so that movable contact spring is returned in situ by the active force of spring, so that movable contact separates with stationary contact.For Guarantee movable contact contacts with stationary contact, and coil need to be energized always, and relay is easily made relay by mistake by external magnetic field interference Action, makes dynamic and static contact accidental separation.The movable contact of electromagnetic type relay contacts with stationary contact can produce repulsion, if promoted Bar thrust upwards is not enough, then be susceptible to the phenomenon of sound poor contact of contacts, and in order to ensure that movable contact can be reliable with quiet Contact, need to increase the number of turn of coil, increase the volume of relay, improve the production cost of relay.

Summary of the invention

The purpose of this utility model is to provide one and makes that sound contact is more reliable, can save electric power, production cost relatively Low motor type HVDC relay.

For achieving the above object, this utility model adopts the following technical scheme that a kind of motor type HVDC relay, bag Including shell, be provided with movable contact assembly, stationary contact assembly and drive assembly in described shell, described movable contact assembly includes dynamic spring Sheet, described movable contact spring fixes with the upper end of catch bar, and catch bar lower end is fixed with tooth bar, and described driving assembly includes motor, The output shaft of described motor is linked with tooth bar by worm screw, and the axis of described worm screw and the axis of catch bar be arranged in parallel.

This utility model replaces coil by motor, can by driving assembly to replace magnetic circuit system, worm gear and tooth bar to coordinate The circumferential movement of output shaft is converted into catch bar axially-movable, make catch bar increase by the main story of motor or reversion or under Fall, will not be because being caused relay maloperation to be occurred by external magnetic field interference, it is ensured that it is reliable that this utility model relay uses Property；And this utility model simple in construction, manufacturing technique requirent is relatively low, and production cost is relatively low.This utility model uses motor conduct The stroke of the power of catch bar, catch bar and movable contact spring is unrelated with magnetic force, it is possible to increase the gap between dynamic and static contact, to improve this The use voltage of utility model relay, improves the serviceability of this utility model relay.Catch bar will not be affected by magnetic forces Horizontally rotate, it is ensured that the movable contact on movable contact spring can contact the most accurately with stationary contact, and avoid movable contact spring horizontal deflection With the generation that other parts contact causing trouble.Motor of the present utility model is by worm screw and the tooth being fixed on catch bar lower end Bar coordinates makes catch bar axially-movable, can be ensured the reliable contacts of movable contact and stationary contact by the self-lock force of motor itself, protect The reliable use of card this utility model relay；And owing to this utility model drives the auto-lock function of assembly, it is not necessary to promoting The parts such as main spring are set on bar.Wherein, worm screw can directly be fixed with motor output shaft one, it is possible on the output shaft of motor Arranging worm structure, worm screw can be linked by the output shaft of various modes with motor, the most gear-driven mode.Wherein, tooth Bar may be formed at the lower end of catch bar, it is possible to fix the part with described tooth bar in the lower end of catch bar, tooth bar may be formed at On this part, tooth bar also can be fixed with this part by various modes.

As preferably, described output shaft be arranged in parallel with the axis of catch bar, and described output shaft is fixed with the first gear, First gear and the engagement of the second gear, the second gear and worm screw are coaxially fixing and link.

As preferably, the lower end of described catch bar is fixed with a drive disk assembly, and described drive disk assembly includes tooth-strip part and position Fixed part on the upside of tooth-strip part, described tooth bar is arranged on tooth-strip part, described fixed part be rod-like structure and with catch bar phase Fixing, described worm screw tooth bar with described drive disk assembly all the time coordinates.

Driving assembly of the present utility model has auto-lock function, and the output shaft of motor forwards stop motion after to greatest extent to, Also catch bar and drive disk assembly will not be made to decline, it is ensured that the position of catch bar after motor power-off, it is not necessary to connect in sound contact Make electrical power the most always, power-off can be carried out after completing sound contact, save power consumption.Owing to worm screw is and biography Dynamic component mechanical rigid connects, movable contact and stationary contact contact or disjunction is the most timely effectively, and movable contact and stationary contact During contact, catch bar can be supported by worm screw and drive disk assembly, it is not necessary to worries because of Lip river logical sequence magnetic produced by sound contact Power causes sound poor contact of contacts, and the contact making dynamic and static contact is the most reliable, makes relay of the present utility model response more fast Speed.The gear ratio of the first different gears and the second gear can be set, to play the effect of speed change；May also set up different worm screws The gear ratio of tooth and tooth bar, to play the effect of speed change.This utility model is only by motor, the first gear, the second gear, snail It is higher that bar, drive disk assembly realize the axially-movable of catch bar, simple in construction and precision, does not haves sound poor contact of contacts The generation of phenomenon.

As preferably, being fixed with base plate inside described shell, described motor is fixed on the upside of base plate, sets on the upside of described base plate Having the first carriage, described first carriage is by the first gripper shoe and is positioned at several first support columns on the downside of the first gripper shoe Composition, described base plate is provided with the first through hole passed through for output shaft and the second through hole passed through for worm screw, described first gear and Second gear is arranged at baseplate underside, and the upper end of described worm screw is collocated with upper bearing (metal), and the lower end of described worm screw is collocated with lower bearing, Described upper bearing (metal) and the first gripper shoe fix, and described lower bearing fixes with base plate.Wherein, the first carriage is for worm screw Support, be also used for drive disk assembly is spacing, it is to avoid the tooth bar of drive disk assembly departs from the helical tooth of worm screw.Base plate can be by many Kind of mode is relatively fixed with shell, such as forms projection upwards at the bottom of shell shell to be supported base plate, and base plate is with outward Shell is screwed.

As preferably, the opposite sides of described tooth-strip part is equipped with the gathering sill running through described tooth-strip part, described gathering sill Inside being collocated with lead, the axis of described lead is parallel with the axis of catch bar, and the upper end of described lead supports with first First gripper shoe of frame fixes, and the lower end of described lead fixes with base plate, and described first gripper shoe is formed for promoting The fifth hole that the fixed part of bar or drive disk assembly passes through.The setting of gathering sill and lead can be to the mobile formation of drive disk assembly Guide, it is ensured that the axially-movable of catch bar, make movable contact can contact the most accurately with stationary contact.

As preferably, the top of described fixed part is formed with plunger, and described catch bar lower end is formed and can accommodate described pin The holding tank of head, the plunger of described drive disk assembly is positioned at the holding tank of catch bar and is fixed with catch bar by alignment pin.On Stating setting makes drive disk assembly reliably fix with catch bar.

As preferably, described base plate is provided with the second carriage, and described first carriage is positioned at inside the second carriage, institute Stating the second carriage to be made up of the second gripper shoe and several second support columns, movable contact spring is positioned at the upside of the second carriage, institute State the second gripper shoe and be formed for the third through-hole that catch bar passes through, on the upside of described second gripper shoe, be fixed with vibration damping sheet, described Vibration damping sheet is formed for the fourth hole that catch bar passes through, and described movable contact spring moves downward and can contact with described vibration damping sheet.Subtract Movable contact spring can be moved down by the setting of shake sheet plays cushioning effect, can protect movable contact spring.Wherein, vibration damping sheet is by having Having certain elastic material to make, the second posting is for replacing the yoke plate of traditional relay.

As preferably, the first gripper shoe of described first carriage is formed with clematis stem hole, and described upper bearing (metal) coordinates the In clematis stem hole, described lower bearing coordinates in the second through hole of base plate.Need not bearing block and carry out the fixing of bearing, make this practicality Novel structure is the simplest.

As preferably, described worm screw includes first paragraph, second segment, the 3rd section, the 4th section and the 5th section the most successively from upper, The inner ring of described upper bearing (metal) fixes with described first paragraph, and the 3rd section is formed the helical tooth coordinated with tooth bar, described lower axle The inner ring held fixes with described 5th section, and the diameter of described second segment is more than the diameter of first paragraph, the diameter of described 4th section Diameter more than described 5th section, the aperture in described clematis stem hole adapts with the diameter of described first paragraph, described second through hole The aperture diameter with described 5th section adapt.Above-mentioned setting can avoid worm screw to depart from from the second through hole of base plate, it is simple to this The assembling of utility model.Wherein, second segment, the diameter of the 4th section should be less than the diameter of the helical tooth on the 3rd section.

As preferably, being provided with posting on the upside of described second carriage, magnet steel is fixed on described posting, described location Frame is formed has the circular orientation that downwardly extends protruding, and described circular orientation is protruding to match with third through-hole to merge and be fixed on described the In three through holes, catch bar is positioned at described circular orientation projection, and described vibration damping sheet fixes with described posting.Wherein, location Frame is for fixing magnet steel, and vibration damping sheet is fixed on the upside of posting.

This utility model has the maloperation of this utility model relay, this practicality can avoided because external magnetic field is caused The reliability that the most reliable contact accurately in the sound contact of new type of relay, this utility model relay use is higher, raw Produce lower-cost advantage, and this utility model can increase the gap between dynamic and static contact, to improve this utility model relay Use voltage, improve the serviceability of this utility model relay.Driving assembly of the present utility model has auto-lock function, can protect The position of catch bar after card power-off, it is not necessary to be always energized after sound contact, can be to complete sound contact laggard The power-off of row motor, saves power consumption, and when movable contact contacts with stationary contact, worm screw and drive disk assembly can be to movable contact springs with push away Lever is supported, it is not necessary to worries the produced Loulun magnetism of contact between sound contact, makes the contact of sound contact more may be used Leaning on, anti-short circuit capability is higher.

Accompanying drawing explanation

Fig. 1 is a kind of generalized section of the present utility model；

Fig. 2 is a kind of structural representation of driving assembly of the present utility model；

Fig. 3 is a kind of structural representation of worm screw of the present utility model；

Fig. 4 is a kind of structural representation of drive disk assembly of the present utility model；

Fig. 5 is a kind of structural representation of the first carriage of the present utility model；

Fig. 6 is a kind of structural representation of base plate of the present utility model；

Fig. 7 is a kind of structural representation of motor of the present utility model；

Fig. 8 is a kind of structural representation of vibration damping sheet of the present utility model；

Fig. 9 is a kind of structural representation of posting of the present utility model；

A kind of structural representation that Figure 10 magnet steel of the present utility model coordinates with posting；

Figure 11 is a kind of structural representation of the second carriage of the present utility model.

Detailed description of the invention

As shown in Figure 1, a kind of motor type HVDC relay of the present utility model, including relay top half with continue Electrical equipment the latter half, is provided with movable contact assembly and stationary contact assembly in relay top half, movable contact assembly includes movable contact spring 1 Be arranged at the movable contact 2 at movable contact spring about 1 two ends, stationary contact assembly includes stationary contact 3 and exit 4, movable contact spring 1 with promote The upper end of bar 5 fixes, and the lower end of catch bar 5 is provided with driving in being positioned at relay the latter half, and relay the latter half Assembly, drives assembly to include motor 6, and motor is small-sized DC brush motor.Catch bar lower end is fixed with tooth bar 23, motor 6 Output shaft is linked with tooth bar 23 by worm screw 20, and catch bar 5 lower end is fixed with a drive disk assembly 21, and drive disk assembly 21 is formed The tooth bar 23 that can adapt with the helical tooth 22 of worm screw 20.The axis of the output shaft of motor 6, the axis of worm screw 20, catch bar 5 Axis is arranged in parallel, and the helical tooth 22 of worm screw 20 coordinates with tooth bar 23 can be converted into catch bar by the circumferential movement of output shaft Axially-movable, the output shaft rotation of motor 6 can make catch bar 5 axially-movable, so that being fixed on the movable contact 2 of on movable contact spring 1 Contacting or disjunction with stationary contact 3, relay top half is collocated with shell 7, and the latter half of relay is collocated with lower casing 8。

Stationary contact 3 is fixed on the downside of exit 4, and the insulation board 9 of exit 4 and ceramic material fixes, lower casing 8 Inside being provided with the second carriage 10 and base plate 11, the second carriage 10 is fixed on base plate 11, and lower casing is provided with can be to base plate 11 Supporting construction, base plate 11 fixes with lower casing 8.Second carriage 10 is by the second gripper shoe and is arranged on the downside of the second gripper shoe Two second support columns composition, be provided with on the upside of the second carriage 10 in enclose structure yoke magnetic conduction press from both sides 12, insulation board 9, yoke Ferrum magnetic conduction folder 12 and the second gripper shoe are fixed by securing member 13 and are formed and accommodate stationary contact assembly and the chamber of movable contact assembly Room.

Shown in Fig. 1, Fig. 9, Figure 10, the second gripper shoe of the second carriage 10 is fixed with posting 14, two magnet steel 15 opposite sides being arranged on posting 14, posting 14 and magnet steel 15 are positioned at chamber.Exit 4 includes epimere and hypomere, Insulation board 9 is formed for exit that exit hypomere passes through by hole, and the diameter of exit epimere is more than exit hypomere Diameter, the hypomere of exit is combined with the flux sleeve 16 in nut structure, and the hypomere of exit is formed and matches with flux sleeve 16 The helicitic texture closed, flux sleeve 16 and exit 4 threaded engagement also make insulation board 9 be clamped at exit 4 epimere and flux sleeve Between 16.

Shown in Fig. 1, Fig. 2, insulation board 9 has downwardly extended an arc blocking part 17, is formed with, in the middle part of movable contact spring 1, groove of stepping down 18, sound contact can make the lower end of arc blocking part 17 be positioned at groove 18 of stepping down, and arc blocking part 17 has one can cut off two groups The height of electric arc in opposite directions between sound contact, the size of arc blocking part 17 fore-and-aft direction is more than movable contact 2 and stationary contact 3 faying face Width front and back.

Shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, worm screw 20 is parallel with the axis of catch bar 5, the output shaft 5 of motor 6 and promotion The axis of bar is parallel.Drive disk assembly 21 upper end fixes with catch bar 5, drive disk assembly 21 lower end towards worm screw 20 side shape Becoming to have described tooth bar 23, the helical tooth 22 of worm screw 20 coordinates with tooth bar 23 all the time, and worm screw 20 rotates can make drive disk assembly about 21 Mobile.Motor 6 is fixed on the upside of base plate 11, and the output shaft of motor 6 is fixed with the first gear 24, the first gear 24 and the second tooth Wheel 25 engagement, the second gear 25 and worm screw 20 are coaxially fixing and link.

Shown in Fig. 1, Fig. 2, Fig. 5, Fig. 7, being provided with the first carriage 19 on the upside of base plate 11, the first carriage 19 is positioned at second Inside carriage 10, the first carriage 19 is by the first gripper shoe and is positioned at four the first support column groups on the downside of the first gripper shoe Become.The first through hole 30 of passing through of output shafts that bottom 11 is provided with power supply machine 6 and the second through hole 31 passed through for worm screw 20, the first tooth Wheel 24 and the second gear 25 are arranged on the downside of base plate 11.The upper end of worm screw 20 is collocated with upper bearing (metal), and the lower end of worm screw 20 is collocated with Lower bearing, upper bearing (metal) and the first gripper shoe fix, and lower bearing is positioned at the second through hole 31 of base plate 11.Motor 6 is provided with output The end of axle is formed with boss 49, and boss 49 is fixed in the first through hole 30.First gripper shoe of the first carriage 19 is formed Clematis stem hole 37, upper bearing (metal) coordinates in clematis stem hole 37, and lower bearing coordinates in the second through hole 31 of base plate 11.

Shown in Fig. 1, Fig. 2, Fig. 4, drive disk assembly 21 includes the tooth-strip part 26 being formed with tooth bar 23, the upside of tooth-strip part 26 Being formed with fixed part 27, fixed part 27 fixes in rod-like structure and with catch bar 5, and tooth-strip part 26 is relative to the two of fixed part 27 Side is provided with a gathering sill 32 longitudinally through tooth-strip part, is collocated with a lead 33 in each gathering sill 32, guides The axis of post 33 be arranged in parallel with the axis of catch bar 5.First gripper shoe phase of the upper end of lead 33 and the first carriage 19 Fixing, the lower end of lead 33 fixes with base plate 11, and the first gripper shoe is formed for the fixed part 27 of drive disk assembly 21 and passes through Fifth hole 34.

The top of fixed part 27 is formed with the plunger 28 of flat, and catch bar 5 lower end is formed with the appearance that can accommodate plunger 28 Receiving groove, the plunger 28 of drive disk assembly 21 is positioned at the holding tank of catch bar 5 and is fixed with catch bar 5 by alignment pin 29.

Shown in Fig. 1, Figure 11, movable contact spring 1 is positioned at the top of the second carriage 10, and the second gripper shoe is formed for catch bar The third through-hole 35 that 5 pass through, is fixed with vibration damping sheet 36 on the upside of the second gripper shoe, vibration damping sheet 36 is formed for what catch bar 5 passed through Fourth hole.

Shown in Fig. 2, Fig. 3, Fig. 5, Fig. 6, worm screw 20 include the most successively first paragraph 41, second segment 42, the 3rd section 43, the 4th section 44 and the 5th section 45, the inner ring of upper bearing (metal) fixes with first paragraph 41, and helical tooth 22 is arranged on the 3rd section 43, The inner ring of lower bearing and the 5th section 45 fix.The diameter of second segment 42 is more than the diameter of first paragraph 41, the diameter of the 4th section 44 Diameter more than the 5th section 45, the aperture in clematis stem hole 37 adapts with the diameter of first paragraph 41, the aperture of the second through hole 31 with The diameter of the 5th section 45 adapts.

Shown in Fig. 1, Fig. 8, vibration damping sheet 36 is hat-shaped structure, and vibration damping sheet 36 includes brim part 38 and is positioned on brim part 38 The damping portion 39 of side, damping portion 39 top is formed with the internal projecting ring to convex, and the inwall of internal projecting ring is globoidal structure.

Shown in Fig. 1, Fig. 9, Figure 10, the opposite sides of posting 14 is formed on the magnet steel groove 46 placing magnet steel 15, and two Being formed with stepping down to movable contact spring 1 between individual magnet steel groove 46, movable contact spring 1 moves down and can be located between two magnet steel grooves 46.Fixed Position frame 14 is formed with the circular orientation projection 47 downwardly extended, and circular orientation protruding 47 matches to merge with third through-hole 35 and is fixed on In third through-hole 35, catch bar 5 is by circular orientation projection 47, and the brim part 38 of vibration damping sheet 36 fixes with posting 14.

As shown in Figure 1, upper shell 7 is formed with cambered outwards outer convex body 48, and upper shell 7 shell wall is positioned at outer convex body 48 following side The external diameter divided is less than the internal diameter of lower casing 8 shell wall, and upper shell 7 lower end is positioned at shell 8 and makes on outer convex body 48 and lower casing 8 Edge offsets.Securing member 13 is bolt, and the second gripper shoe of insulation board the 9, second carriage 10 is the most rectangular, and insulation board 9 four jiaos Place is equipped with the first fixing hole, is equipped with second fixing hole corresponding with the first fixing hole at the corner of the second carriage 10 40, securing member 13 through the first fixing hole and is screwed with the second fixing hole 40, the bolt head of securing member 13 and insulation board 9 Upper limb offsets.

The motor shaft of this utility model motor rotates, and makes the first gear 24 being fixed on motor shaft drive the second gear 25 Rotate so that rotating with the second co-axially fixed worm screw of gear 25 20 so that the drive disk assembly 21 coordinated with worm screw 20 rises or under Fall, so that catch bar and movable contact spring rise or fall, so that sound contact or disjunction.Wherein, when drive disk assembly 21 times During fall, movable contact spring 1 declines and offsets with vibration damping sheet 36 top；When drive disk assembly 21 rises so that movable contact 2 contacts with stationary contact 3 After, can be by the motor power-off of relay of the present utility model, to save the energy.

This utility model has the maloperation of this utility model relay, this practicality can avoided because external magnetic field is caused The reliability that the most reliable contact accurately in the sound contact of new type of relay, this utility model relay use is higher, raw Produce lower-cost advantage, and the gap between dynamic and static contact can be increased, to improve the use voltage of this utility model relay, Improve the serviceability of this utility model relay.Driving assembly of the present utility model has auto-lock function, it is ensured that motor breaks The position of catch bar after electricity, it is not necessary to be always energized after sound contact, can break after completing sound contact Electricity, saves power consumption, and when movable contact contacts with stationary contact, movable contact spring can be supported by worm screw and drive disk assembly, it is not necessary to load The produced Loulun magnetism of contact between stationary contact aroused in interest, the contact making sound contact is the most reliable, and anti-short circuit capability is strong.

Claims (10)

1. a motor type HVDC relay, it is characterised in that include shell, is provided with movable contact assembly, quiet in described shell Contact assembly and driving assembly, described movable contact assembly includes that movable contact spring, described movable contact spring fix with the upper end of catch bar, push away The lower end of lever is fixed with tooth bar, and described driving assembly includes motor, and the output shaft of described motor is linked with tooth bar by worm screw, The axis of described worm screw and the axis of catch bar be arranged in parallel.

Motor type HVDC relay the most according to claim 1, it is characterised in that described output shaft and catch bar Axis be arranged in parallel, and described output shaft is fixed with the first gear, the first gear and the engagement of the second gear, the second gear and worm screw Coaxially fix and linkage.

Motor type HVDC relay the most according to claim 2, it is characterised in that the lower end of described catch bar is fixed Having a drive disk assembly, described drive disk assembly include tooth-strip part and are positioned at the fixed part on the upside of tooth-strip part, described tooth bar is arranged on tooth In bar portion, described fixed part is rod-like structure and fixes with catch bar, described worm screw all the time with the tooth bar of described drive disk assembly Coordinate.

Motor type HVDC relay the most according to claim 3, it is characterised in that be fixed with the end inside described shell Plate, described motor is fixed on the upside of base plate, is provided with the first carriage on the upside of described base plate, and described first carriage is supported by first Plate and several the first support columns composition being positioned on the downside of the first gripper shoe, described base plate is provided with supply output shaft to pass through first and leads to Hole and the second through hole passed through for worm screw, described first gear and the second gear are arranged at baseplate underside, the upper end of described worm screw Being collocated with upper bearing (metal), the lower end of described worm screw is collocated with lower bearing, described upper bearing (metal) and the first gripper shoe and fixes, described lower axle Hold and fix with base plate.

Motor type HVDC relay the most according to claim 4, it is characterised in that the opposite sides of described tooth-strip part It is equipped with the gathering sill running through described tooth-strip part, in described gathering sill, is collocated with lead, the axis of described lead and promotion The axis of bar is parallel, and the upper end of described lead fixes with the first gripper shoe of the first carriage, the lower end of described lead Fixing with base plate, described first gripper shoe is formed for the fifth hole that the fixed part of catch bar or drive disk assembly passes through.

Motor type HVDC relay the most according to claim 3, it is characterised in that the top of described fixed part is formed Having plunger, described catch bar lower end to be formed with the holding tank that can accommodate described plunger, the plunger of described drive disk assembly is positioned at promotion In the holding tank of bar and fixed with catch bar by alignment pin.

Motor type HVDC relay the most according to claim 4, it is characterised in that described base plate is provided with second Support frame, described first carriage is positioned at inside the second carriage, described second carriage by the second gripper shoe and several second Support column forms, and movable contact spring is positioned at the upside of the second carriage, and described second gripper shoe is formed for the 3rd that catch bar passes through Through hole, is fixed with vibration damping sheet on the upside of described second gripper shoe, described vibration damping sheet is formed for the fourth hole that catch bar passes through, institute State movable contact spring to move downward and can contact with described vibration damping sheet.

Motor type HVDC relay the most according to claim 4, it is characterised in that the first of described first carriage Gripper shoe is formed with clematis stem hole, and described upper bearing (metal) coordinates in clematis stem hole, and described lower bearing coordinates and leads at the second of base plate In hole.

Motor type HVDC relay the most according to claim 8, it is characterised in that described worm screw from upper the most successively Including first paragraph, second segment, the 3rd section, the 4th section and the 5th section, the inner ring of described upper bearing (metal) fixes with described first paragraph, the Being formed with the helical tooth coordinated with tooth bar on three sections, the inner ring of described lower bearing fixes with described 5th section, described second segment Diameter more than the diameter of first paragraph, the diameter of the described 4th section diameter more than described 5th section, the hole in described clematis stem hole Footpath adapts with the diameter of described first paragraph, and the aperture of the described second through hole diameter with described 5th section adapts.

Motor type HVDC relay the most according to claim 7, it is characterised in that set on the upside of described second carriage Having posting, magnet steel to be fixed on described posting, it is protruding that described posting is formed with the circular orientation downwardly extended, described ring Shape positioning convex matches with third through-hole to merge and is fixed in described third through-hole, and it is protruding that catch bar is positioned at described circular orientation In, described vibration damping sheet fixes with described posting.