CN209591840U - Double power supply automatic transfer switch rack and pinion drive mechanism - Google Patents
Double power supply automatic transfer switch rack and pinion drive mechanism Download PDFInfo
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- CN209591840U CN209591840U CN201920154530.XU CN201920154530U CN209591840U CN 209591840 U CN209591840 U CN 209591840U CN 201920154530 U CN201920154530 U CN 201920154530U CN 209591840 U CN209591840 U CN 209591840U
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Abstract
The purpose of the utility model is to provide it is a kind of be avoided that and meanwhile close a floodgate, performance is stable, the double power supply automatic transfer switch rack and pinion drive mechanism of strong breaking capacity.A kind of double power supply automatic transfer switch rack and pinion drive mechanism, including driving gear and two or so the rack gears being oppositely arranged, gear is driven to be located between two rack gears, the driving gear and rack gear are all set in outer housing, the rack gear includes the first rack gear and the second rack gear, first rack gear and the first drive rod link, second rack gear and the second drive rod link, the driving gear is fixed in shaft, the tooth for being meshed with rack gear is formed in the part outer rim of the driving gear, when driving the tooth of gear to engage with a rack gear in two rack gears, it drives another rack gear in the tooth and two rack gears of gear to be in and is disengaged from state, the sliding tooth wheel rotates so that rack gear is along back-and-forth motion.
Description
Technical field
The utility model relates to a kind of double power supply automatic transfer switch, and in particular to a kind of double power supply automatic transfer switch tooth
Take turns rack gear.
Background technique
Double power supply automatic transfer switch was for, when main electricity breaks down, being both avoided that failure electricity in power supply system
Source powers to the load, and can reliably select the qualified normal operation of power supply investment, to guarantee that power supply is uninterrupted.Current dual power supply
In automatic change-over, it is sufficiently complex to carry out the operation transmission mechanism switched between common power supply and backup power source, exists while closing
The case where lock, occurs, and haves the defects that performance is unstable, volume is big, breaking capacity is poor.
Summary of the invention
The purpose of the utility model is to provide it is a kind of be avoided that and meanwhile close a floodgate, performance is stable, the dual power supply of strong breaking capacity
Automatic change-over rack and pinion drive mechanism.
To achieve the above objectives, the present invention adopts the following technical solutions: a kind of double power supply automatic transfer switch gear
Rack gear, including driving gear and two or so the rack gears being oppositely arranged, driving gear is located between two rack gears, institute
It states driving gear and rack gear is all set in outer housing, the rack gear includes the first rack gear and the second rack gear, first rack gear
It links with the first drive rod, second rack gear and the second drive rod link, and first drive rod is opened for the first power supply
It closes a floodgate, second drive rod is used for the switching of second source, and the driving gear is fixed in shaft, described shaft one end
It links with driving motor shaft, the shaft other end is extended to outside outer housing and fixed with handle, the portion of the driving gear
The tooth for being meshed with rack gear is exceptionally formed on edge, when the tooth of driving gear is engaged with a rack gear in two rack gears
When, drive another rack gear in the tooth and two rack gears of gear to be in the state that is disengaged from, the sliding tooth wheel rotate so that
Along being moved forward and backward, the driving gear is centrosymmetric structure, first rack gear and the second rack gear symmetrical knot rack gear
Structure.
Carry out the utility model double power supply automatic transfer switch in use, carrying out shaft by driving motor or handle
Rotation is driven the movement of the first rack gear or the second rack gear by driving gear positive and negative rotation, is avoided that both sides power supply while carrying out
Switching, conversion position is accurate, and performance is stablized, strong breaking capacity.Wherein, DC speed-reducing may be selected as driving motor,
So that motor shaft can be in the free state of small rotary damping after conversion end, it is artificial to enable an operator to carry out by handle
It closes a floodgate.The utility model transmission mechanism can be constituted and is symmetrical set, the modularized production for components of being more convenient for, and be convenient for components
Installation and subsequent replacement.
Preferably, the rack gear is connect with several tension springs, under the action of the tension spring, rack gear is moved forward.This
Utility model is equipped with tension spring, so that two rack gears have forward power always, is avoided that the revolution of driving motor shaft leads to handle
Misregister, to avoid maloperation.
Preferably, the driving gear is made of axial top and axial lower part, the axial direction top was equipped with to week
The tooth extended outward, the axial direction lower diameter are greater than axial upper diameter, two rack gears include rack gear top and
Rack gear lower part, rack gear top is used to engage with driving gear, between less than two rack gear tops of the distance between two rack gear lower parts
Distance, the axial direction lower part, which is located relatively at the tooth shaft and is formed with to the position of side, allows bit space, when a rack gear and sliding tooth
When the tooth engagement of wheel, the rack gear lower front of another rack gear is in contact with axial lower part outer rim always.Above-mentioned setting is so that originally
Utility model double power supply automatic transfer switch performance is more stable.
Preferably, the rack gear lower front of the rack gear is formed with arc groove, when the tooth of a rack gear and driving gear
When engagement, the axial lower part peripheral outer wall of the driving gear is tangent with the cambered surface cell wall of the arc groove of another rack gear always.
Above-mentioned setting is so that the fiting effect between driving wheel and rack is more preferable, moreover it is possible to avoid contact wear between the two.
Preferably, axial direction lower part outer rim has extended to form retention bead to outer circumferential, when a rack gear is driven
When movable tooth wheel drive to front end, the retention bead is in contact with the front end face of another rack gear.Retention bead is for limiting
The rotation radian for driving gear, continues to move along to avoid one of rack gear.
Preferably, the outer housing in be equipped with the first fixed plate, first fixed plate cover the driving gear with
Rack gear, the shaft runs through first fixed plate, and the first rotation boom end and the second rotating bar end extend respectively to the
On the outside of one fixed plate left and right sides, fixed in first fixed plate there are two microswitches, and there are two setting in the first fixed plate
Upper and lower perforative first guide groove is combined with fine motion mandril in first guide groove, and rack gear is moved forward and backward described micro- to drive
Dynamic mandril is mobile, to touch microswitch, the microswitch, fine motion mandril and rack gear are corresponded.The utility model is logical
It crosses and microswitch is set relative to the axial side of shaft in rack gear, to realize the monitoring of rack position, and make the utility model body
Product is smaller.
Preferably, the rack gear is formed with the strip groove arranged along the longitudinal direction, the fine motion mandril includes protruding into institute
The bar portion in strip groove and the touch part for touching microswitch are stated, when rack gear moves forward so that bar portion end is located at bar shaped
When slot rear end, microswitch sends signal, when rack gear moves backward so that bar portion end is located at bar shaped front of the slot, microswitch
Signal is sent again；The touch part side of the fine motion mandril is formed with touch slot, and the slot that touches is in the V-arrangement being open to side
Slot structure, rack gear move forward so that the touch head of corresponding microswitch is in contact with touch part side, and rack gear moves backward
To extreme position so that touch head protrudes into touch slot
Above-mentioned setting with determine rack gear whether move in place or reset in place.Have between the utility model fine motion mandril and rack gear
There is guide frame, so that the detection of rack position is more accurate.The touch head of microswitch and fine motion mandril touch part side phase
Contact is a kind of triggering conditions of microswitch；The touch head of microswitch, which is moved to, to be touched in slot so that contact is overhanging, is
Another contacts status of microswitch；So that microswitch be triggered it is more easy, to improve disjunction sensitivity.
Preferably, being fixed with the second fixed plate in first fixed plate, there are two along preceding for the second fixed plate tool
Second guide groove of rear direction arrangement, the touch part of the fine motion mandril is formed with guide part far from the side of bar portion, described to lead
To portion's cooperation in second guide groove, the microswitch is limited between the first fixed plate and the second fixed plate, the
Two fixed plates and the first fixed plate buckle are fixed, and the first fixed plate is formed with the positioning column for positioning microswitch.Second is solid
Fixed board is applied not only to fix the limit of microswitch, is also used to the guiding of fine motion mandril.
Preferably, first fixed plate is respectively arranged on the left side and the right side the third guide groove arranged along the longitudinal direction, institute
Rack gear is stated equipped with the first fixing head, first fixing head passes through the third guide groove so that the first fixed cephalic par extends
Above to the first fixed plate, the second fixing head is equipped at left and right sides of first fixed plate, the tension spring tenses fixed first
Between head and the second fixing head, first fixing head and the second fixing head are equipped with the hook groove for cooperating tension spring end.It is above-mentioned to set
It sets so that the utility model volume is smaller.
Preferably, being equipped with third fixed plate in the outer housing, the third fixed plate is formed with phase interworking with rack gear
The guide frame of conjunction, the guide frame include guide protrusions and guide groove；The rack gear end face is equipped with several contact projections,
The rack gear is supported in the third fixed plate by the contact projection, and the contact projection is in a strip shape or dotted.Third
Fixed plate and rack gear are formed with the setting of mutually matched guide frame, so that the movement of rack gear is more directional；Contact projection
Setting to reduce the friction between rack gear and third fixed plate so that the movement of rack gear more convenient power-saving.
The utility model, which has, to be avoided that both sides power supply while carrying out switching, and conversion position is accurate, and performance is stablized, disjunction
The strong advantage of ability.And the utility model components are more convenient for modularized production, convenient for the installation and subsequent replacement of components.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the utility model；
Fig. 2 is another structural schematic diagram of the utility model；
Fig. 3 is a kind of usage state diagram of the wheel and rack of the utility model；
Fig. 4 is another use state of the wheel and rack of the utility model；
Fig. 5 is a kind of structural schematic diagram of the first fixed plate of the utility model and the second fixed plate；
Fig. 6 is a kind of structural schematic diagram of the utility model microswitch；
Fig. 7 is a kind of structural schematic diagram of the utility model microswitch, fine motion mandril and rack gear.
Specific embodiment
The utility model is further described below according to the drawings and specific embodiments.
As shown in Fig. 1, Fig. 2, Fig. 5, Fig. 6, a kind of double power supply automatic transfer switch rack pinion of the utility model
Mechanism, including outer housing, outer housing are made of pedestal 1 and the cover, and driving gear 2 is equipped in outer housing and two or so set relatively
The rack gear set, driving gear 2 are located between two rack gears, and rack gear includes the first rack gear 3 and the second rack gear 4, the first rack gear 3 and the
The linkage of one drive rod 11, the second rack gear 4 and the second drive rod 12 link, and the first drive rod 11 is mobile to realize opening for the first power supply
It closes a floodgate, the mobile switching to realize second source of the second drive rod 12, driving gear 2 is fixed in shaft 13, shaft 13 1
End is linked with 14 shaft of DC speed-reducing, and the shaft other end extends on the outside of outer housing and is fixed with handle, decelerating motor 14
It is fixed between the first power supply and second source.Driving gear 2 is centrosymmetric structure, the first rack gear 3 and the second rack gear 4 in a left side
Right symmetrical structure.
As shown in Fig. 1 to Fig. 7, the tooth 21 being formed in the part outer rim of gear 2 for being meshed with rack gear is driven, drive is worked as
When the tooth 21 of moving gear 2 is engaged with a rack gear in two rack gears, another in the tooth 21 and two rack gears of gear 2 is driven
Rack gear is in the state that is disengaged from, and driving gear 2 rotates so that rack gear moves forward, and rack gear is connect with a tension spring 5, tension spring
5 one end are fixed with rack gear, and 5 other end of tension spring is located on front side of rack gear, and under the action of tension spring 5, rack gear is moved forward.
Driving gear 2 is made of axial top 210 and axial lower part 220, and axial top 210 is equipped with prolongs to outer circumferential
The tooth 21 stretched, axial 220 diameter of lower part are greater than 210 diameter of axial top, and two rack gears include rack gear top 300 and tooth
Lower part 400, rack gear top 300 are used to engage with driving gear 2, less than two rack gears of the distance between two rack gear lower parts 400
Distance between top 300, the position that axial lower part 220 is located relatively at the axial side of the tooth 21, which is formed with, allows bit space 20, when one
A rack gear with driving gear 2 tooth 21 engage when, the rack gear lower front of another rack gear always with axial 220 outer rim phase of lower part
Contact.
400 leading edge of rack gear lower part of rack gear is formed with arc groove 41, when a rack gear is engaged with the tooth 21 of driving gear 2
When, 220 peripheral outer wall of axial lower part of driving gear 2 is in contact with the cambered surface cell wall of the arc groove of another rack gear 41 always.
Axial 220 outer rim of lower part has extended to form retention bead 22 to outer circumferential, when a rack gear is driven by driving gear 2 to before most
When end, retention bead 22 is in contact with the front end face of another rack gear.
As shown in Fig. 1, Fig. 4, Fig. 5, the first fixed plate 6 is equipped in outer housing, the first fixed plate 6 covers driving 2 He of gear
Rack gear, shaft 13 runs through the first fixed plate 6, and 11 end of the first rotating bar and 12 end of the second rotating bar extend respectively to first
On the outside of fixed plate 6 left and right sides, fixed in the first fixed plate 6 there are two microswitches 7, and set that there are two upper in the first fixed plate 6
Under perforative first guide groove 61, fine motion mandril 8 is combined in the first guide groove 61, rack gear is moved forward and backward to drive fine motion mandril
8 is mobile, to touch microswitch 7, microswitch 7, fine motion mandril 8 and rack gear are corresponded.
As shown in Fig. 2, Fig. 3, Fig. 4, Fig. 7, rack gear is formed with the strip groove 31 arranged along the longitudinal direction, and fine motion mandril 8 wraps
The bar portion 81 protruded into strip groove 31 and the touch part 82 for touching microswitch 7 are included, when rack gear moves forward so that bar portion
When 81 ends are located at 31 rear end of strip groove, microswitch 7 sends signal, when rack gear moves backward so that 81 end of bar portion is located at item
When shape 31 front end of slot, microswitch 7 sends signal again.
82 side of touch part of fine motion mandril 8, which is formed with, touches slot 83, and touching slot 83 is in the V-shaped groove knot being open to side
Structure, rack gear move forward so that the touch head 71 of corresponding microswitch 7 is in contact with 83 side of touch part, and rack gear moves back
Move to extreme position so that touch head 71 it is overhanging and protrude into touch slot 83 in.
Rack gear lower end surface is equipped with several contact projections 44 extended downwardly, and rack gear is supported on third by contact projection 44 and consolidates
On fixed board 15, contact projection 44 is in a strip shape or dotted.
As shown in Fig. 1, Fig. 5, Fig. 6, the second fixed plate 9 is fixed in the first fixed plate 6, there are two the second fixed plate 9 tools
The second guide groove 91 arranged along the longitudinal direction, the touch part 82 of fine motion mandril 8 are formed with guide part far from the side of bar portion 81
84, guide part 84 cooperates in the second guide groove 91, microswitch 7 be limited in the first fixed plate 6 and the second fixed plate 9 it
Between, the second fixed plate 9 and the first fixed plate 6 buckle are fixed, and the first fixed plate 6 is formed with the positioning for positioning microswitch 7
Column 62.
As shown in Fig. 1, Fig. 6, the first fixed plate 6 is respectively arranged on the left side and the right side the third guide groove arranged along the longitudinal direction
63, rack gear is equipped with the first fixing head 32, and the first fixing head 32 passes through third guide groove 63 so that 32 end of the first fixing head is prolonged
6 top of the first fixed plate is extended to, is equipped with the second fixing head 64 at left and right sides of the first fixed plate 6, tension spring 5 is tensed in the first fixing head
32 and second between fixing head 64, and the first fixing head 32 and the second fixing head 64 are equipped with the hook groove of cooperation 5 end of tension spring.
As shown in Fig. 2, Fig. 3, Fig. 7, third fixed plate 15 is equipped in outer housing, third fixed plate 15 is formed with phase with rack gear
The guide frame mutually cooperated, guide frame include guide protrusions 16 and guide groove 17, and third fixed plate 15 is one of pedestal 1
Point, guide protrusions 16 are in bar shaped and are arranged in third fixed plate 15, and rack gear and the first drive rod 11 or the second drive rod 12 are consolidated
Determine to form guide groove 17.
Carry out the utility model double power supply automatic transfer switch in use, carrying out shaft by driving motor or handle
Rotation drives the movement of the first rack gear or the second rack gear by driving gear positive and negative rotation, to realize the first power supply and the second electricity
The switching (switching) in source, and combined floodgate while be avoided that two power supplys.
The utility model, which has, to be avoided that both sides power supply while carrying out switching, and conversion position is accurate, and performance is stablized, disjunction
The strong advantage of ability.And the utility model components are more convenient for modularized production, convenient for the installation and subsequent replacement of components.
Claims (10)
1. a kind of double power supply automatic transfer switch rack and pinion drive mechanism, it is characterised in that including driving gear and two or so
The rack gear being oppositely arranged, driving gear are located between two rack gears, and the driving gear and rack gear are all set in outer housing, institute
Stating rack gear includes the first rack gear and the second rack gear, and first rack gear and the first drive rod link, second rack gear and second
Drive rod linkage, first drive rod are used for the switching of the first power supply, and second drive rod is opened for second source
It closes a floodgate, the driving gear is fixed in shaft, and described shaft one end and driving motor shaft link, and the shaft other end prolongs
It extends to outside outer housing and is fixed with handle, the tooth for being meshed with rack gear is formed in the part outer rim of the driving gear,
When driving the tooth of gear to engage with a rack gear in two rack gears, another tooth in the tooth and two rack gears of gear is driven
Item is in the state that is disengaged from, and the sliding tooth wheel rotates so that rack gear is along being moved forward and backward, and the driving gear is centrosymmetric
Structure, first rack gear and the symmetrical structure of the second rack gear.
2. double power supply automatic transfer switch rack and pinion drive mechanism according to claim 1, it is characterised in that the tooth
Item is connect with several tension springs, and under the action of the tension spring, rack gear is moved forward.
3. double power supply automatic transfer switch rack and pinion drive mechanism according to claim 1 or 2, it is characterised in that described
Driving gear is made of axial top and axial lower part, and the axial direction top is equipped with the tooth extended to outer circumferential, institute
It states axial lower diameter and is greater than axial upper diameter, two rack gears include rack gear top and rack gear lower part, and rack gear top is used for
It is engaged with driving gear, the distance between less than two rack gear tops of the distance between two rack gear lower parts, the axial direction lower part is opposite
It is formed with positioned at the tooth shaft to the position of side and allows bit space, when the tooth engagement of a rack gear and driving gear, another tooth
The rack gear lower front of item is in contact with axial lower part outer rim always.
4. double power supply automatic transfer switch rack and pinion drive mechanism according to claim 3, it is characterised in that the tooth
The rack gear lower front of item is formed with arc groove, when the tooth engagement of a rack gear and driving gear, the axis of the driving gear
Peripheral outer wall is tangent with the cambered surface cell wall of the arc groove of another rack gear always to the lower part.
5. double power supply automatic transfer switch rack and pinion drive mechanism according to claim 3, it is characterised in that the axis
Outer rim has extended to form retention bead to outer circumferential to the lower part, when a rack gear is by sliding tooth wheel drive to front end, institute
Retention bead is stated to be in contact with the front end face of another rack gear.
6. double power supply automatic transfer switch rack and pinion drive mechanism according to claim 2, it is characterised in that described outer
It is equipped with the first fixed plate in shell, first fixed plate covers the driving gear and rack gear, and the shaft runs through described the
One fixed plate, and the first rotation boom end and the second rotating bar end extend respectively on the outside of the first fixed plate left and right sides, it is described
Fixed in first fixed plate there are two microswitches, and set that there are two upper and lower perforative first guide groove, institutes in the first fixed plate
It states and is combined with fine motion mandril in the first guide groove, rack gear is moved forward and backward to drive the fine motion mandril mobile, to touch fine motion
Switch, the microswitch, fine motion mandril and rack gear correspond.
7. double power supply automatic transfer switch rack and pinion drive mechanism according to claim 6, it is characterised in that the tooth
Item is formed with the strip groove arranged along the longitudinal direction, and the fine motion mandril includes the bar portion protruded into the strip groove and for touching
The touch part of dynamic microswitch, when rack gear moves forward so that bar portion end is located at strip groove rear end, microswitch sends letter
Number, when rack gear moves backward so that bar portion end is located at bar shaped front of the slot, microswitch sends signal again；The fine motion top
The touch part side of bar is formed with touch slot, and the slot that touches is in V-shaped groove structure be open to side, rack gear forward movement so that
The touch head of corresponding microswitch is in contact with touch part side, and rack gear is moved rearwardly into extreme position so that touch head protrudes into
It touches in slot.
8. double power supply automatic transfer switch rack and pinion drive mechanism according to claim 6, it is characterised in that described
The second fixed plate is fixed in one fixed plate, second fixed plate has there are two the second guide groove arranged along the longitudinal direction,
The touch part of the fine motion mandril is formed with guide part far from the side of bar portion, and the guide part cooperation is in second guide groove
Interior, the microswitch is limited between the first fixed plate and the second fixed plate, and the second fixed plate and the first fixed plate buckle
Fixed, the first fixed plate is formed with the positioning column for positioning microswitch.
9. double power supply automatic transfer switch rack and pinion drive mechanism according to claim 6, it is characterised in that described
One fixed plate is respectively arranged on the left side and the right side the third guide groove arranged along the longitudinal direction, and the rack gear is equipped with the first fixing head,
First fixing head passes through the third guide groove so that the first fixed cephalic par extends to above the first fixed plate, and described the
The second fixing head is equipped at left and right sides of one fixed plate, the tension spring tenses between the first fixing head and the second fixing head, described
First fixing head and the second fixing head are equipped with the hook groove of cooperation tension spring end.
10. double power supply automatic transfer switch rack and pinion drive mechanism according to claim 1, it is characterised in that described outer
Third fixed plate is equipped in shell, the third fixed plate and rack gear are formed with mutually matched guide frame, the guiding knot
Structure includes guide protrusions and guide groove；The rack gear end face is equipped with several contact projections, and the rack gear is convex by the contact
It rises and is supported in the third fixed plate, the contact projection is in a strip shape or dotted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920154530.XU CN209591840U (en) | 2019-01-29 | 2019-01-29 | Double power supply automatic transfer switch rack and pinion drive mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920154530.XU CN209591840U (en) | 2019-01-29 | 2019-01-29 | Double power supply automatic transfer switch rack and pinion drive mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209591840U true CN209591840U (en) | 2019-11-05 |
Family
ID=68381232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920154530.XU Active CN209591840U (en) | 2019-01-29 | 2019-01-29 | Double power supply automatic transfer switch rack and pinion drive mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209591840U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117524761A (en) * | 2024-01-05 | 2024-02-06 | 常州晶硕机电有限公司 | Furnace changing switch of intermediate frequency furnace |
-
2019
- 2019-01-29 CN CN201920154530.XU patent/CN209591840U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117524761A (en) * | 2024-01-05 | 2024-02-06 | 常州晶硕机电有限公司 | Furnace changing switch of intermediate frequency furnace |
| CN117524761B (en) * | 2024-01-05 | 2024-03-19 | 常州晶硕机电有限公司 | Furnace changing switch of intermediate frequency furnace |
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