CN203826274U - Load switch and insulating main shaft thereof - Google Patents
Load switch and insulating main shaft thereof Download PDFInfo
- Publication number
- CN203826274U CN203826274U CN201420110526.0U CN201420110526U CN203826274U CN 203826274 U CN203826274 U CN 203826274U CN 201420110526 U CN201420110526 U CN 201420110526U CN 203826274 U CN203826274 U CN 203826274U
- Authority
- CN
- China
- Prior art keywords
- contact
- axle body
- down arm
- load switch
- shaft coupling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000009413 insulation Methods 0.000 claims description 35
- 230000008878 coupling Effects 0.000 claims description 30
- 238000010168 coupling process Methods 0.000 claims description 30
- 238000005859 coupling reaction Methods 0.000 claims description 30
- 230000002787 reinforcement Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 abstract description 6
- 239000007769 metal material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model relates to a switching device, and particularly relates to a load switch and an insulating main shaft thereof. The load switch comprises the insulating main shaft comprising a shaft body. The shaft body is provided with a contact sheet installing arm which is used for installing a moving contact. The contact sheet installing arm extends outwardly along a radial direction of the shaft body. The shaft body of the insulting main shaft is provided with the contact sheet installing arm. The contact sheet installing arm extends outwardly along the radial direction of the shaft body so that the moving contact can be installed on the shaft body via the contact sheet installing arm. Compared with existing insulating main shafts, radial dimension of the shaft body can be greatly reduced, and material consumption of the shaft body is low so that integral material consumption of the insulting main shaft can be reduced, and production cost of the insulating main shaft can be reduced.
Description
Technical field
The utility model relates to device for switching, particularly a kind of on-load switch and insulation spindle thereof.
Background technology
Notification number is that the Chinese patent of 201655636U has been announced a kind of insulation spindle of high-voltage load switch, this insulation spindle comprises axle body, one end of axle body is provided with support piece, and the other end of axle body is provided with spline, and the inside of spline has key tooth, in spline, be equipped with shaft coupling, shaft coupling is laminated structure, and the end of shaft coupling is provided with connecting hole, and this connecting hole coordinates with the rectangular axle inserting on operating mechanism output shaft, on the side face of axle body, offer draw-in groove, draw-in groove is used for installing three-phase moving contact.In use, operating mechanism output shaft penetrates in connecting hole this insulation spindle, because shaft coupling is fixedly connected with spline, can make axle body with operating mechanism output shaft rotation, drives the three-phase moving contact being arranged on axle body to rotate simultaneously.But, this insulation spindle has the following disadvantages: because draw-in groove is located on the side face of axle body, three-phase contact is installed on axle body by draw-in groove, in order to coordinate the installation site of three-phase moving contact, axle body need to have larger radial dimension, thereby axle body need to expend more material, cause the production cost of insulation spindle high; In addition,, because the axial dimension of shaft coupling is little, the key tooth of spline and the contact area of shaft coupling are little, shaft coupling is in the time of driving torque, and the contact site of shaft coupling and key tooth can bear larger power, is prone to stress concentration phenomenon, thereby shaft coupling and key tooth are easily damaged.
Summary of the invention
The purpose of this utility model is to provide the insulation spindle that a kind of materials are few and cost is low.The utility model also provides a kind of on-load switch that uses above-mentioned insulation spindle.
To achieve these goals, on-load switch of the present utility model adopts following technical scheme: on-load switch, comprise insulation spindle, and insulation spindle comprises axle body, axle body is provided with the contact hold-down arm for moving contact is installed, and contact hold-down arm extends radially outwardly along axle body.
Contact hold-down arm is provided with contact groove.
Between contact hold-down arm and axle body, be provided with reinforcement.
On-load switch, also comprises shaft coupling, shaft coupling comprise for the key tooth section of the strip of spline fitted, the end of key tooth section is provided with the fit structure for coordinating with the output shaft of operating mechanism.
To achieve these goals, insulation spindle of the present utility model adopts following technical scheme: insulation spindle, comprise axle body, and the periphery of axle body is provided with the contact hold-down arm for moving contact is installed, and contact hold-down arm extends radially outwardly along axle body.
Contact hold-down arm is provided with contact groove.
Between contact hold-down arm and axle body, be provided with reinforcement.
Insulation spindle, also comprises shaft coupling, shaft coupling comprise for the key tooth section of the strip of spline fitted, the end of key tooth section is provided with the fit structure for coordinating with the output shaft of operating mechanism.
The beneficial effects of the utility model: the axle body of insulation spindle of the present utility model is provided with contact hold-down arm, due to contact hold-down arm extending radially outwardly along axle body, moving contact can be installed on axle body by contact hold-down arm, compared with existing insulation spindle, can greatly reduce the radial dimension of axle body, axle body materials are little, thereby can reduce the overall materials of insulation spindle, reduced the production cost of insulation spindle.
Further, be directly fixed on the surface of contact hold-down arm with moving contact compared with, moving contact is plugged in contact groove, can increase the contact area between moving contact and contact hold-down arm, thereby can improve connectivity robustness between the two.
Further, can strengthen the bonding strength between contact hold-down arm and axle body by reinforcement, avoid in use the contact hold-down arm phenomenon that fractures.
Further, the key increment of shaft coupling is strip, compared with the shaft coupling of existing sheet, can improve the contact area of the key tooth of shaft coupling and spline, and then can avoid stress to concentrate, can make moment more be evenly distributed on the key tooth of spline, the useful life that can improve spline coupling, thus simultaneously can greatly reduce axle body stress and improved the intensity of axle body.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment 1 of insulation spindle of the present utility model;
Fig. 2 is the structural representation of shaft coupling of the present utility model.
Embodiment
The embodiment 1 of insulation spindle of the present utility model, as shown in Figure 1-2: insulation spindle comprises axle body 1, piece 2 and spline 3 are supported respectively in the both ends of axle body 1.Axle body 1 is provided with the contact hold-down arm 4 for moving contact is installed, and contact hold-down arm 4 extends radially outwardly along axle body 1.
Contact hold-down arm 4 is positioned on the side face of axle body 1, and contact hold-down arm 4 has three, and three contact hold-down arms 4 are spaced apart and corresponding one by one with three-phase moving contact.On the end face of three contact hold-down arms 4, offer contact groove 5, moving contact can be plugged in contact groove 5.The cross section of contact groove 5 is square, and in other embodiments, its cross section can also be C shape or circle or U-shaped.In other embodiments, contact groove can also be located on the side of contact hold-down arm.Between contact hold-down arm 4 and axle body 1, be provided with reinforcement 6, in other embodiments, can also save reinforcement.Spline 3 has key tooth.
Insulation spindle also comprises shaft coupling 7, shaft coupling 7 is made up of metal material, shaft coupling 7 comprises the key tooth section 71 of the strip for coordinating with the key tooth of spline 3, the end of key tooth section 71 is provided with polished rod section 72, and the end of polished rod section 72 is provided with the fit structure 73 for coordinating with the output shaft of operating mechanism.Fit structure 73 is protuberance, and this protuberance can be used for coordinating with the recess card on operating mechanism output shaft, and the cross section of this protuberance is rectangle.At other embodiment, the cross section of protuberance can also be other shape, as triangle or hexagon.In other embodiments, fit structure can also be recess, and this recess can be used for coordinating with the protuberance card on the output shaft of operating mechanism.In other embodiments, can also save polished rod section, fit structure is directly located at the end of key tooth section.
In the present embodiment, support piece 2, spline 3 and axle body 1 three central axis altogether, in other embodiments, not conllinear of three's central axis.In the present embodiment, the requirement that divides, closes a floodgate in order to meet switch, the axle body of insulation spindle will be with certain speed rotation, and the three-phase moving contact (contact) being simultaneously contained on main shaft axle body is the consistency that will maintain three-phase contact action in operation, therefore, insulation spindle adopts one-shot forming.
Point, when closing operation, the output shaft of operating mechanism is connected with the fit structure 73 on shaft coupling 7, and the key tooth section 71 on shaft coupling 7 is coordinated with the key tooth of spline 3, can drive successively shaft coupling 7, spline 3, axle body 1 and be assemblied in three-phase moving contact on contact hold-down arm 4 by the output shaft of operating mechanism and rotate according to certain speed.
While closing insulation spindle work, the torsion of maximum there will be the part being connected with operating mechanism output shaft with splined end at axle body.According to the actual practical operating mode of axle body, the weakest link of axle body is optimized to design, has increased many reinforcing rib structures.Axle body adopts the mode of spline drived to be connected by the shaft coupling of a middle transition and the operating mechanism of switch, and driving torque can be evenly distributed on the key tooth of spline, thereby the stress that has reduced widely axle body has improved the intensity of axle body.Shaft coupling has utilized the intensity of metal material, facilitates the location of operating mechanism and Switch main body and is connected.This insulation spindle has very strong useful life.
In other embodiments, can also save contact groove, a kind of situation is, on contact hold-down arm, screwed hole is set, and moving contact can be installed on the surface of contact hold-down arm by bolt; Another kind of situation is that contact hold-down arm and moving contact are by being welded to connect.
The embodiment of on-load switch of the present utility model, on-load switch comprises insulation spindle, the structure of this insulation spindle is identical with the structure of the embodiment of above-mentioned insulation spindle of the present utility model, need not repeat to repeat at this again.
Claims (8)
1. on-load switch, comprises insulation spindle, and insulation spindle comprises axle body, it is characterized in that: axle body is provided with the contact hold-down arm for moving contact is installed, and contact hold-down arm extends radially outwardly along axle body.
2. on-load switch according to claim 1, is characterized in that: contact hold-down arm is provided with contact groove.
3. on-load switch according to claim 1 and 2, is characterized in that: between contact hold-down arm and axle body, be provided with reinforcement.
4. on-load switch according to claim 1, is characterized in that: also comprise shaft coupling, shaft coupling comprise for the key tooth section of the strip of spline fitted, the end of key tooth section is provided with the fit structure for coordinating with the output shaft of operating mechanism.
5. insulation spindle, comprises axle body, it is characterized in that: the periphery of axle body is provided with the contact hold-down arm for moving contact is installed, and contact hold-down arm extends radially outwardly along axle body.
6. insulation spindle according to claim 5, is characterized in that: contact hold-down arm is provided with contact groove.
7. according to the insulation spindle described in claim 5 or 6, it is characterized in that: between contact hold-down arm and axle body, be provided with reinforcement.
8. insulation spindle according to claim 5, is characterized in that: also comprise shaft coupling, shaft coupling comprise for the key tooth section of the strip of spline fitted, the end of key tooth section is provided with the fit structure for coordinating with the output shaft of operating mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420110526.0U CN203826274U (en) | 2014-03-12 | 2014-03-12 | Load switch and insulating main shaft thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420110526.0U CN203826274U (en) | 2014-03-12 | 2014-03-12 | Load switch and insulating main shaft thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203826274U true CN203826274U (en) | 2014-09-10 |
Family
ID=51481745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420110526.0U Expired - Lifetime CN203826274U (en) | 2014-03-12 | 2014-03-12 | Load switch and insulating main shaft thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203826274U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105551872A (en) * | 2016-01-18 | 2016-05-04 | 河北瀚泰电气设备制造有限公司 | Composite insulated middle-voltage isolating switch |
| CN106206144A (en) * | 2016-08-16 | 2016-12-07 | 北京清畅电力技术股份有限公司 | Environment-friendly type gas cabinet disconnecting switch main shaft |
-
2014
- 2014-03-12 CN CN201420110526.0U patent/CN203826274U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105551872A (en) * | 2016-01-18 | 2016-05-04 | 河北瀚泰电气设备制造有限公司 | Composite insulated middle-voltage isolating switch |
| CN106206144A (en) * | 2016-08-16 | 2016-12-07 | 北京清畅电力技术股份有限公司 | Environment-friendly type gas cabinet disconnecting switch main shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140910 |