CN203119690U - Transmission mechanism and dual-power automatic transfer switch - Google Patents
Transmission mechanism and dual-power automatic transfer switch Download PDFInfo
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- CN203119690U CN203119690U CN 201320053019 CN201320053019U CN203119690U CN 203119690 U CN203119690 U CN 203119690U CN 201320053019 CN201320053019 CN 201320053019 CN 201320053019 U CN201320053019 U CN 201320053019U CN 203119690 U CN203119690 U CN 203119690U
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- main shaft
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Abstract
The utility model provides a transmission mechanism used for a dual-power automatic transfer switch. According to the transmission mechanism provided by the utility model, a driving motor thereof adopts an asynchronous motor equipped with a reduction gearbox, the rotating speed is relatively stable, relatively accurate rotating to corresponding switching-off and switching-on positions can be realized, and thus transfer accuracy of the dual-power automatic transfer switch is obviously improved. In addition, since the asynchronous motor is equipped with the reduction gearbox, a reduction gearbox matched with the asynchronous motor does not need to be assembled again for the asynchronous motor in assembling, greatly reducing the assembling difficulty of the transmission mechanism. Moreover, the utility model also provides a dual-power automatic transfer switch comprising the abovementioned transmission mechanism, and has the same technical effects.
Description
Technical field
The utility model relates to the dual-power transfer switch technical field, relates in particular to a kind of transmission mechanism and a kind of double power supply automatic switching switch.
Background technology
At present, double power supply automatic switching switch has been widely used in the occasion that ask for something can not cut off the power supply.Current science and technology is so flourishing, and people have the dependence that is difficult to avoid to electric power facility, and the outage phenomenon may cause many inconceivable accidents.Such as, occasions such as hospital, fire-fighting, bank, chemical industry, metallurgy, military equipment, ground satellite communication may cause great property loss even casualties if the outage phenomenon occurs.For avoiding the generation of this kind situation, double power supply automatic switching switch arises at the historic moment.Because double power supply automatic switching switch is provided with relay commonly used and duplicate relay simultaneously, when power supply commonly used fortuitous event occurs and can't normal power supply, double power supply automatic switching switch can switch to stand-by power supply by duplicate relay automatically in time to be come for equipment provides electric energy, thereby assurance equipment can be in "on" position constantly.
Double power supply automatic switching switch is equipped with corresponding with it transmission mechanism, and please in conjunction with Fig. 1-Fig. 4, Fig. 1 is the integral installation figure of the transmission mechanism of existing a kind of double power supply automatic switching switch; Fig. 2 is the structural representation with the suitable reduction box of high speed series excited machine; Fig. 3 is a kind of high speed series excited machine of existing transmission mechanism employing and the assembling schematic diagram of reduction box; Fig. 4 is the assembling side elevation of existing a kind of gear drive.Existing double power supply automatic switching switch transmission mechanism mainly comprises: drive motors, reduction box 12, gear reduction 17, main shaft 13 and double-linked cam 16.
The drive motors that existing double power supply automatic switching switch transmission mechanism adopts is high speed series excited machine 11, the rotating speed of high speed series excited machine is by being exported by main shaft 13 after the deceleration of reduction box 12 and gear reduction 17, and drive double-linked cam 16 rotates, double-linked cam 16 arranges with the killer switch interlock, and the rotation by double-linked cam 16 just can realize changing between power supply commonly used and the stand-by power supply.The rotating speed that drives the main shaft 13 of double-linked cam 16 mainly relies on the combination of drive motors, reduction box 12 and gear reduction 17 to cooperate and decides.Because existing double power supply automatic switching switch adopts the high speed series excited machine, have following some problem when using this motor driven gear: 1, since the high speed series excited machine when starting and stopping speed too fast, excessive to its gear impulsive force that drives, can't make double power supply automatic switching switch reach branch, closing position accurately easily, cause the accuracy of switching relatively poor.In addition, this high-speed startup and the mode that stops also very easily to cause gear wear, use after a period of time, can't mesh fully between the gear, finally cause translation exception.2, this high speed series excited machine causes the assembling process complexity of whole transmission mechanism because the reduction box that does not carry needs to assemble suitable reduction box for it separately, and assembly difficulty is big and expend a large amount of man-hours.
This shows how to strengthen the switching accuracy of double power supply automatic switching switch, and reduce the assembly difficulty of transmission mechanism, is the technical problem that those skilled in the art need to be resolved hurrily.
The utility model content
In view of this, the purpose of this utility model is to provide a kind of transmission mechanism and a kind of double power supply automatic switching switch, with the switching accuracy of enhancing double power supply automatic switching switch, and the assembly difficulty of reduction transmission mechanism.
For achieving the above object, the utility model provides following technical scheme:
A kind of transmission mechanism is used for double power supply automatic switching switch, comprising:
Be fixedly mounted on the lower support of the downside of relay one end;
Be installed in the drive motors on the described lower support;
The gear reduction that is arranged in the described lower support and arranges with described drive motors interlock, described gear reduction comprises the pinion that drives by drive motors and the gear wheel that is meshed with described pinion;
Main shaft, described main shaft and described gear wheel coaxial rotation;
With the switch gearing setting of described relay, and by rotating the double-linked cam can switch power supply commonly used and stand-by power supply, described double-linked cam and described main shaft coaxial rotation,
Described drive motors is the asynchronous machine that carries reduction box, and the output shaft coaxial rotation of described pinion and described reduction box.
Further, in above-mentioned transmission mechanism, described main shaft is the main shaft of square bar shape structure.
Further, in above-mentioned transmission mechanism, be connected for interference fit between described main shaft and the described double-linked cam.
Further, in above-mentioned transmission mechanism, described double-linked cam is welded on the described main shaft or with described main shaft and is structure as a whole.
Further, in above-mentioned transmission mechanism, offer the lower main axis hole on the described lower support, described lower main axis hole is passed in the lower end of described main shaft.
Further, in above-mentioned transmission mechanism, also comprise the upper frame of the upside that is fixed on described relay one end, offer spindle hole on the described upper frame, the described spindle hole of going up is passed in the upper end of described main shaft.
The transmission mechanism that the utility model provides, because its drive motors that adopts is the asynchronous machine that carries reduction box, the rotating speed of asynchronous machine stationarity for existing high speed series excited machine improves a lot, can not form bigger impulsive force to the gear of its driving, therefore can turn to corresponding branch, closing position more accurately, make that the accuracy when double power supply automatic switching switch use switching between power supply and the stand-by power supply has had significantly raising.In addition, the asynchronous machine that the transmission mechanism that the utility model provides adopts is owing to carry reduction box, when assembling, need not to assemble suitable with it reduction box for this asynchronous machine again, make the assembling of whole transmission mechanism simple, greatly reduce the assembly difficulty of transmission mechanism.
In addition, the utility model also provides a kind of double power supply automatic switching switch, comprises above-mentioned transmission mechanism.Because therefore the transmission mechanism that adopts above-mentioned the utility model to provide has identical technique effect with it.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the integral body assembling schematic diagram of the transmission mechanism of existing a kind of double power supply automatic switching switch;
Fig. 2 is the structural representation with the suitable reduction box of high speed series excited machine;
Fig. 3 is a kind of high speed series excited machine of existing transmission mechanism employing and the assembling schematic diagram of reduction box;
Fig. 4 is the assembling side elevation of existing a kind of gear drive;
The integral installation figure of a kind of transmission mechanism that Fig. 5 provides for the utility model embodiment;
A kind of asynchronous machine structural representation that has reduction box that Fig. 6 provides for the utility model embodiment;
The assembling side elevation of a kind of gear reduction that Fig. 7 provides for the utility model embodiment.
Embodiment
The utility model embodiment provides a kind of transmission mechanism and a kind of double power supply automatic switching switch, can strengthen the switching accuracy of double power supply automatic switching switch, and reduces the assembly difficulty of transmission mechanism.
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
Please in conjunction with Fig. 5-Fig. 7, wherein, the integral installation figure of a kind of transmission mechanism that Fig. 5 provides for the utility model embodiment; A kind of asynchronous machine structural representation that has reduction box that Fig. 6 provides for the utility model embodiment; The assembling side elevation of a kind of gear reduction that Fig. 7 provides for the utility model embodiment.
A kind of transmission mechanism that the utility model embodiment provides is used for double power supply automatic switching switch, comprising: lower support 23, drive motors, gear reduction 26, main shaft 22 and double-linked cam 25.
Wherein: lower support 23 is fixedly mounted on the downside of relay one end; Drive motors is installed on the lower support, and described drive motors is the asynchronous machine 21 that has reduction box 211; Described gear reduction 26 is arranged in the described lower support 23 and with described drive motors interlock and arranges, and comprises the pinion that drives by drive motors and the gear wheel that is meshed with described pinion; Main shaft 22 and described gear wheel coaxial rotation, the method that realizes the two coaxial rotation has a lot, such as main shaft 22 being passed described gear wheel centre bore and welding mutually with described gear wheel, can certainly described gear wheel and described main shaft 22 be set to integrative-structure by modes such as castings; Described double-linked cam 25 and described main shaft 22 coaxial rotation, and settings that link of the switch of described double-linked cam 25 and described relay can realize using always the switching between power supply and the stand-by power supply to guarantee rotation by described double-linked cam 25.
When using the transmission mechanism that the utility model embodiment provides, asynchronous machine 21 provides actuating force for whole transmission mechanism, after the deceleration of rotating speed by its reduction box that carries 211 by asynchronous machine 21 outputs, pass through the secondary speed-reducing of gear reduction 26 again, make the rotating speed of final output can reach requirement and drive main shaft 22 rotations, main shaft 22 drives double-linked cam 25 again and rotates, and the double-linked cam 25 that relay switch links is by rotating the switching that just can realize between power supply commonly used and the stand-by power supply.
The transmission mechanism that the utility model provides, because its drive motors that adopts is the asynchronous machine 21 that carries reduction box 211, the rotating speed of asynchronous machine 21 is for existing high speed series excited machine, stationarity improves a lot, can not form bigger impulsive force to the gear of its driving, therefore can turn to corresponding branch, closing position more accurately, make that the accuracy when double power supply automatic switching switch use switching between power supply and the stand-by power supply has had significantly raising.In addition, the asynchronous machine 21 that the transmission mechanism that the utility model provides adopts is owing to carry reduction box 211, when assembling, need not to assemble suitable with it reduction box for this asynchronous machine 21 again, thereby make the assembling of whole transmission mechanism simple, greatly reduce the assembly difficulty of transmission mechanism.
In the transmission mechanism that above-mentioned the utility model embodiment provides, in order to make the coaxial rotation between main shaft 22 and the double-linked cam 25 can be more accurately firm, avoid occurring rotational variations, described main shaft 22 can be designed to the main shaft of square bar shape structure, and offer a square centre bore adaptive with the main spindle box of this square bar shape structure at described double-linked cam 25.The main shaft of this square bar shape structure is passed described square centre bore, guarantee that main shaft 22 can drive described double-linked cam 25 coaxial rotation with it securely.
In the practical application, preferably, can adopt the mode of interference fit to be connected between main shaft 22 and the double-linked cam 25, or directly double-linked cam 25 is welded on the main shaft 22, double-linked cam 25 and main shaft 22 can also be designed to integrative-structure.Like this, when main shaft 22 drove double-linked cam 25 coaxial rotation, the synchronism of rotating between the two was higher, is difficult for the deviation that rotates each other more, makes that finally the switching accuracy of whole double power supply automatic switching switch is higher.
In the use, main shaft 22 is the stock shape, may occur rocking during along with the gear wheel coaxial rotation at it, and the two ends of main shaft 22 especially, because distance provides the gear wheel of actuating force far away for it, it is bigger to produce the possibility and the shaking amplitude that rock.Therefore, rock the influence that the stability to transmission mechanism causes when rotating in order to reduce main shaft 22 as far as possible, preferably, can offer a lower main axis hole at lower support 23, and described lower main axis hole is passed in the lower end of main shaft 22.Further, we can also arrange a upper frame 24 accordingly at upside and the lower support of relay one end, and are correspondingly offering spindle hole on the upper frame 24, make the upper end of main shaft 22 pass the described spindle hole of going up.Like this, upper and lower spindle hole can provide certain spacing space for it when main shaft 22 rotates, reduce the shaking amplitude of main shaft 22, thereby improve the switching accuracy of whole double power supply automatic switching switch further.
In addition, the utility model also provides a kind of double power supply automatic switching switch, comprises the transmission mechanism that above-mentioned the utility model embodiment provides.Because therefore the transmission mechanism that adopts above-mentioned the utility model to provide has identical technique effect with it, does not give unnecessary details at this.
Above content combines the embodiment accompanying drawing specific embodiment of the utility model has been made detailed description.Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments herein.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the wideest scope consistent with principle disclosed herein and features of novelty.
Claims (7)
1. a transmission mechanism is used for double power supply automatic switching switch, comprising:
Be fixedly mounted on the lower support (23) of the downside of relay one end;
Be installed in the drive motors on the described lower support (23);
The gear reduction (26) that is arranged in the described lower support (23) and arranges with described drive motors interlock, described gear reduction (26) comprises the pinion that drives by drive motors and the gear wheel that is meshed with described pinion;
Main shaft (22), described main shaft (22) and described gear wheel coaxial rotation;
With the switch gearing setting of described relay, and by rotating the double-linked cam (25) can switch power supply commonly used and stand-by power supply, described double-linked cam (25) and described main shaft (22) coaxial rotation,
It is characterized in that described drive motors is the asynchronous machine (21) that carries reduction box (211), and the output shaft coaxial rotation of described pinion and described reduction box (211).
2. transmission mechanism according to claim 1 is characterized in that, described main shaft (22) is the main shaft of square bar shape structure.
3. transmission mechanism according to claim 1 is characterized in that, is connected for interference fit between described main shaft (22) and the described double-linked cam (25).
4. transmission mechanism according to claim 1 is characterized in that, described double-linked cam (25) is welded in described main shaft (22) and upward or with described main shaft (22) is structure as a whole.
5. transmission mechanism according to claim 1 is characterized in that, described lower support offers the lower main axis hole on (23), and described lower main axis hole is passed in the lower end of described main shaft (22).
6. transmission mechanism according to claim 1 is characterized in that, also comprises the upper frame (24) of the upside that is fixed on described relay one end, and described upper frame offers spindle hole on (24), and the described spindle hole of going up is passed in the upper end of described main shaft (22).
7. a double power supply automatic switching switch is characterized in that, comprises as any described transmission mechanism of claim 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320053019 CN203119690U (en) | 2013-01-29 | 2013-01-29 | Transmission mechanism and dual-power automatic transfer switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320053019 CN203119690U (en) | 2013-01-29 | 2013-01-29 | Transmission mechanism and dual-power automatic transfer switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203119690U true CN203119690U (en) | 2013-08-07 |
Family
ID=48900006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320053019 Expired - Lifetime CN203119690U (en) | 2013-01-29 | 2013-01-29 | Transmission mechanism and dual-power automatic transfer switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203119690U (en) |
-
2013
- 2013-01-29 CN CN 201320053019 patent/CN203119690U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 325600 three road, Yueqing Economic Development Zone, Zhejiang, China Patentee after: SIQI TECHNOLOGY CO.,LTD. Address before: 325000, 429, Daxing West Road, Liushi export-oriented economic development zone, Wenzhou, Zhejiang, Yueqing Patentee before: ZHEJIANG SIQI ELECTRICAL Co.,Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20130807 |
|
| CX01 | Expiry of patent term |