CN203464868U - Hinge shaft type displacement device - Google Patents
Hinge shaft type displacement device Download PDFInfo
- Publication number
- CN203464868U CN203464868U CN201320404928.7U CN201320404928U CN203464868U CN 203464868 U CN203464868 U CN 203464868U CN 201320404928 U CN201320404928 U CN 201320404928U CN 203464868 U CN203464868 U CN 203464868U
- Authority
- CN
- China
- Prior art keywords
- dial plate
- fixed
- rotation axis
- bus
- shifter
- 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 - Fee Related
Links
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 18
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 13
- 239000010931 gold Substances 0.000 description 13
- 229910052737 gold Inorganic materials 0.000 description 13
- 239000012212 insulator Substances 0.000 description 5
- 229910052573 porcelain Inorganic materials 0.000 description 5
- 230000010339 dilation Effects 0.000 description 4
- 230000029058 respiratory gaseous exchange Effects 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
Landscapes
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model is applicable to the technical field of power tube buses and provides a hinge shaft type displacement device. The device comprises a drive rod, a rotating shaft, a pull rope and a dial plate with scales, wherein the pull rope is tightly wound on the rotating shaft, each of the two ends of the drive rod is provided with a strut, each strut is provided with a threaded hole, each threaded hole is provided with a matching tensioning screw, and the two ends of the pull rope are respectively and correspondingly fixed on the two tensioning screws. According to the hinge shaft type displacement device, linear displacement of a power tube bus is amplified and converted into angular displacement of the rotating shaft, and the angular displacement is indicated on the dial plate by a pointer, which facilitates intuitive and accurate observation by management personnel.
Description
Technical field
The utility model belongs to power pipe bus technical field, relates in particular to a kind of twisted axis formula shifter.
Background technology
Transformer station's high voltage (220kV, 110kV) grade electrical equipment, all connects by tubulose aluminium wire, and these wires are referred to as bus.The effect of bus is collect, distribute and transmit electric energy.Bus is divided into hard bus and soft bus by structure, and hard bus is divided into again brace type bus and suspension type bus.Brace type bus, because of advantages such as its floor area are little, simple in structure, through-current capacity is large, is widely used in 220kV transformer station.
Brace type tubulose bus is comprised of bus structure, porcelain insulator, bus bar cupport, bus bar fixing hardware and power pipe bus conventionally.Described bus structure is general apart from ground 3.5-4 rice, 1.2 meters of described porcelain insulator height, be fixed on bus structure, two joint porcelain insulators for 220kV bus, described bus bar cupport is fixed on porcelain insulator top, power pipe bus two ends are supported by described bus bar fixing hardware, described bus bar fixing hardware comprises movable gold utensil and fixed gold utensil, a fixed gold utensil is installed in power pipe bus one end, the other end is installed movable gold utensil, when variation of ambient temperature causes power pipe bus to expand with heat and contract with cold, fixed gold utensil has limited the breathing direction of power pipe bus, movable gold utensil can allow the free to contract and expand of power pipe bus.If movable gold utensil occurs bite fault and cannot make power pipe bus free-extension, there is like this serious accidents such as porcelain insulator ruptures, bus collapses.Therefore must often monitor the breathing situation of power bus-bar, if note abnormalities, take measures in time to fix a breakdown, guarantee power plant safety reliability service.
The method of observation power pipe bus dilation situation is standardized the markings of power pipe bus in movable gold utensil one side at present, fixes a graduated scale and extend to below the markings of tubulose bus on the bracket of movable gold utensil.During power pipe bus dilation, the scale label of the markings of pipe bus relative to its below produces and moves.If environment temperature changes, and pipe bus markings without mobile phenomenon, explanation activity gold utensil has bite fault, eliminating must take immediate steps.But under actual conditions, due to the limited length (general 10 meters of left and right) of the power pipe bus of each unit, its amplitude with variation of ambient temperature is very little, generally, 1 ℃ of variation of ambient temperature, its length variations is less than 0.5mm, and therefore directly observation and comparison is difficult.
Utility model content
In view of the above problems, the utility model provides a kind of twisted axis formula shifter, is intended to solve because power pipe bus dilation amount is conventionally less, directly the more difficult technical matters of sighting tube bus linear displacement.
The utility model is to realize like this, a kind of twisted axis formula shifter, comprise the graduated dial plate of driving stem, rotation axis, stay cord and tool, described stay cord is tightly wrapped on described rotation axis, described driving stem two ends are equipped with pillar, described pillar is provided with threaded hole, and described threaded hole is provided with the stretching screw of coupling, and the two ends of described stay cord respectively correspondence are fixed on these two stretching screws.
Further, the described dial plate back side is also fixed with the holder for fixed displacement device.
Further, the described dial plate back side is also fixed with rotary shaft rack, and described rotation axis one end is through described dial plate, and the other end is through described rotary shaft rack.
Further, described rotary shaft rack and rotation axis junction, and described dial plate and rotation axis junction are equipped with bearing.
Further, the described dial plate back side is also fixed with protection back cover.
Further, top, the described dial plate back side is also fixed with ceiling.
The beneficial effects of the utility model are: during use, the rotation axis of shifter is fixed on the movable gold utensil of power pipe bus, by adjusting stretching screw tension rotation axis, when power pipe bus expands or shrinks, drive described driving stem to move, two stretching screws on described driving stem pull described stay cord, described stay cord drives described rotation axis to turn over certain angle, pointer turns over certain angle in company with described rotation axis on dial plate, the utility model amplifies the linear displacement of power pipe bus the angle displacement that converts rotation axis to, and described angle displacement indicates on dial plate by pointer, facilitate like this managerial personnel's accurately observation directly perceived.
Accompanying drawing explanation
Fig. 1 is the side sectional view of the twisted axis formula shifter that provides of the utility model embodiment;
Fig. 2 is the front elevation of the twisted axis formula shifter that provides of the utility model embodiment;
Fig. 3 is bowing to cut-open view of the twisted axis formula shifter that provides of the utility model embodiment.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
For technical scheme described in the utility model is described, below by specific embodiment, describe.
Fig. 1-Fig. 3 is respectively side sectional view, the front elevation of the twisted axis formula shifter that provides of the utility model embodiment and bows to cut-open view, only shows for convenience of explanation the part relevant to the utility model embodiment.
The twisted axis formula shifter that the present embodiment provides comprises the graduated dial plate 2 of driving stem 11, rotation axis 12, stay cord 15 and tool, described stay cord 15 is tightly wrapped on described rotation axis 12, described driving stem 11 two ends are equipped with pillar 16, described pillar 16 is provided with threaded hole, described threaded hole is provided with the stretching screw 17 of coupling, and the two ends of described stay cord 15 respectively correspondence are fixed on these two stretching screws 17.Preferably, the described dial plate back side is also fixed with the holder 4 for fixed displacement device.Pointer 3 is fixed clampingly on described rotation axis 12 by nut.
When concrete use, by described holder 4, shifter is being fixed on the bus structure of power pipe bus, and driving stem 11 is fixed on the movable gold utensil of power pipe bus, regulate described stretching screw 17. that stay cord 15 is tightly wrapped on described rotation axis 12, preferably, as a kind of mounting means, described holder 4 is fixed on a pedestal web joint 7, described pedestal web joint 7 is fixedly connected with bus structure, described driving stem 11 two ends are fixed on a plate 8, described web joint 8 is provided with socket, described socket is connected with the movable gold utensil on power pipe bus.
After power pipe bus expands with heat and contract with cold, its movable end produces linear displacement, by described web joint 8, drive described driving stem 11 to move, two stretching screws 17 on described driving stem 11 pull described stay cord 15, described stay cord 15 drives described rotation axis 12 and pointer 3 to rotate, and pointer can clearly indicate in the angle turning on dial plate.Generally, because the element length of pipe bus can not be oversize, such as the aluminium alloy matter pipe bus of long 10 meters, when T=10 ℃ of variation of ambient temperature Δ, its breathing amount
the thermal linear expansion coefficient of aluminium-alloy pipe bus
so Δ L=23.91 * 10
-6* 10
4(mm) * 10 ℃=2.391mm, so little displacement is difficult to observe on the high pylon in 10 meters of left and right.Suppose that rotation axis 12 diameters are d, the diameter of dial plate 2 is D, the linear breathing amount enlargement factor K=D/d of the power pipe bus of the utility model embodiment, if d=5mm, D=400mm, known K=80.Therefore pointer is actual linear displacement at the indicated scale variable quantity of dial plate 80 times, even if power pipe bus length subtle change also can indicate clearly on dial plate, facilitates managerial personnel's accurately observation directly perceived.
Be further used as a kind of preferred implementation, the described dial plate back side is also fixed with rotary shaft rack 13, described rotation axis 12 one end are through described dial plate 2, the other end is through described rotary shaft rack 13, described rotary shaft rack 13 and rotation axis 12 junctions, and described dial plate 2 is equipped with bearing 14 with rotation axis 12 junctions, by described bearing 14, described rotation axis 12 can flexible rotating.Further, described dial plate 2 back sides are also fixed with protection back cover 5, and described protection back cover 5 covers described rotary shaft rack 13, and back cover 5 both-side openings are exposed driving stem two ends, and have the sufficiently long length that moves freely.
Further, as a kind of preferred implementation, described dial plate 2 tops, the back side are also fixed with ceiling 6, further protect shifter not to be damaged.
To sum up, the shifter that the present embodiment provides is a kind of twisted axis formula shifter, the linear displacement of power pipe bus can be amplified to the angle displacement that converts rotation axis to, and indicate on dial plate, pointer rotates highly sensitive, even if variation of ambient temperature is less, the dilation amount of power pipe bus also can be known exactly and show, and is convenient to managerial personnel's observation.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (6)
1. a twisted axis formula shifter, it is characterized in that, described shifter comprises driving stem (11), rotation axis (12), stay cord (15) and the graduated dial plate of tool (2), described stay cord (15) is tightly wrapped on described rotation axis (12), described driving stem (11) two ends are equipped with pillar (16), described pillar (16) is provided with threaded hole, described threaded hole is provided with the stretching screw (17) of coupling, and the two ends of described stay cord (15) respectively correspondence are fixed on these two stretching screws (17).
2. twisted axis formula shifter as claimed in claim 1, is characterized in that, the described dial plate back side is also fixed with the holder (4) for fixed displacement device.
3. twisted axis formula shifter as claimed in claim 2, is characterized in that, the described dial plate back side is also fixed with rotary shaft rack (13), and described rotation axis (12) one end is through described dial plate (2), and the other end is through described rotary shaft rack (13).
4. twisted axis formula shifter as claimed in claim 3, is characterized in that, described rotary shaft rack (13) and rotation axis (12) junction, and described dial plate (2) is equipped with bearing (14) with rotation axis (12) junction.
5. twisted axis formula shifter as claimed in claim 4, is characterized in that, described dial plate (2) back side is also fixed with protection back cover (5).
6. twisted axis formula shifter as claimed in claim 5, is characterized in that, described dial plate (2) top, the back side is also fixed with ceiling (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320404928.7U CN203464868U (en) | 2013-07-09 | 2013-07-09 | Hinge shaft type displacement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320404928.7U CN203464868U (en) | 2013-07-09 | 2013-07-09 | Hinge shaft type displacement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203464868U true CN203464868U (en) | 2014-03-05 |
Family
ID=50177223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320404928.7U Expired - Fee Related CN203464868U (en) | 2013-07-09 | 2013-07-09 | Hinge shaft type displacement device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203464868U (en) |
-
2013
- 2013-07-09 CN CN201320404928.7U patent/CN203464868U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 Termination date: 20200709 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |