CN201138256Y - Pressure measurement apparatus for moving contact of portable V typed loaded switch - Google Patents
Pressure measurement apparatus for moving contact of portable V typed loaded switch Download PDFInfo
- Publication number
- CN201138256Y CN201138256Y CNU2007201991967U CN200720199196U CN201138256Y CN 201138256 Y CN201138256 Y CN 201138256Y CN U2007201991967 U CNU2007201991967 U CN U2007201991967U CN 200720199196 U CN200720199196 U CN 200720199196U CN 201138256 Y CN201138256 Y CN 201138256Y
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- China
- Prior art keywords
- base plate
- panel
- circle
- pressure
- fixed
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- Expired - Lifetime
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Abstract
The utility model discloses a portable V-shaped load switch movable contact pressure measuring device, which consists of a measuring mechanism part and a fixed base part. The permanent seat of the measuring mechanism part consists of an upper permanent seat and a lower permanent seat. The permanent seat is arranged on a base plate. Two racks are arranged between the upper permanent seat and the lower permanent seat respectively. A panel is arranged on the two racks through a panel shaft sleeve. The base plate is provided with two base plate shaft sleeves and a handgrip. One end of the handgrip is provided with a worm wheel. A worm is arranged on the panel. A tension spring is arranged between the panel and the base plate. A pressure-measuring device is arranged on the panel. The fixed base part consists of holding rings, shaft sleeves and shafts. The two shafts are fixed by the two shaft sleeves arranged on the holding rings on both ends. Two base plate shaft sleeves fixed on the base plate are enclosed on the two shafts. The base plate is vertical to the center line of the shafts. The holding rings can be fixed on the main shaft of a V-shaped load switch with the contact pressure to be measured. The portable V-shaped load switch movable contact pressure measuring device can measure precisely, and is applicable for field work on the transformer substations.
Description
Technical field
The utility model relates to transformer loaded switch movable contact device for pressure measurement, relates in particular to the measurement mechanism of lightweight V-type loaded switch movable contact pressure, is used for the pressure at transformer station's in-site measurement V-type loaded switch movable contact.
Background technology
For guaranteeing the power grid security reliability service, guarantee quality of voltage, extensively adopt ULTC to carry out pressure regulation in the electric system.Loaded switch as in the transformer unique under high-voltage large current the parts of rapid movement, its failure rate is higher relatively.At present, it is owing to the loaded switch fault causes that ULTC has an accident many, the main cause of V-type loaded switch burning damage accident is because the dynamic/static contact contact pressure diminishes, and causes that dynamic/static contact loose contact, temperature rise are too high to cause contact melting welding, finally causes the loaded switch scaling loss.
The contact pressure of dynamic/static contact is that the bounce (being called for short moving contact pressure) that produces behind the spring system compressive deformation of moving contact when being contacted with static contact by moving contact determines.Generally fixed V-type loaded switch pick-up unit is all arranged in loaded switch manufacturing firm, it adopts support formula fixation measuring platform to measure loaded switch movable contact pressure, existing measurement structure is general, and what adopt is that screw rod drives gauge outfit and presses down with moving contact and contact, thus measurement moving contact pressure., can't use at the scene simultaneously because this type of equipment volume is big and be fixed.At present, in the V-type loaded switch site examining and repairing of transformer station, for the detection of moving contact pressure is that the feel of abundant by rule of thumb master craftsman when pushing moving contact with hand manually estimated, can't detection by quantitative, this loaded switch for rapid movement under high-voltage large current is a very big hidden danger.
The utility model content
The purpose of this utility model is to provide a kind of portable V type loaded switch movable contact device for pressure measurement, and this measurement mechanism is simple in structure, and general assembly (TW) is light, and be easy to carry and operate, and the measuring accuracy height, be adapted at transformer station's work on the spot.
The utility model is achieved in that a kind of portable V type loaded switch movable contact device for pressure measurement, partly forms by measuring mechanism part and fixed pedestal,
Measuring mechanism partly comprises holder, base plate, base plate axle sleeve, guide rail, panel axle sleeve, panel, pressure-measuring device, extension spring, handle, worm gear, worm screw; Holder is made up of upper fixed seat and lower fixed seat, and holder is installed on the base plate, and two base plate axle sleeves also are installed on the base plate, and two guide rails are installed in respectively between upper fixed seat and the lower fixed seat, and panel is installed on two guide rails by the panel axle sleeve; Handle also is housed on the base plate, and handle one end is equipped with worm gear, is installed on the panel with the worm screw of worm wheel; Between panel and the base plate extension spring is housed, pressure-measuring device is installed on the panel;
The fixed pedestal part is made up of an armful circle, axle sleeve, axle, two axles are fixed by two axle sleeves embracing on the circle that are positioned at two ends respectively, also be set with two base plate axle sleeves that are fixed on the base plate on two axles simultaneously, base plate becomes vertical configuration with the axial line of two axles, embraces circle and can be fixed on the V-type loaded switch main shaft that needs measuring contacts pressure.
Described armful of circle be by embracing the circle body and embracing a circle curved boom and forms, embraces circle curved boom two ends and enclose body bottom two ends and be hinged and snapping with embracing respectively; Embracing circle body top is the pit shape, and axle sleeve is equipped with on pit shape two arm tops respectively.
The utility model can be at the transformation station of electric power power transmission and transformation in-site measurement V-type loaded switch movable contact pressure, the fixed pedestal of the utility model measurement mechanism partly is mainly used in the measuring mechanism partial fixing on V-type loaded switch main shaft, provides measuring basis for measuring moving contact pressure; The fixed pedestal part must have enough physical strengths, to guarantee measuring accuracy.Pressure-measuring device is contained on the measuring mechanism part of the present utility model, the measuring mechanism part can be along moving axially on the axle of fixed pedestal part, be rotatably installed in the height of the handle adjustable pressure measuring instrument on the base plate, behind measuring contacts pressure, the extension spring between base plate and panel can make pressure-measuring device get back to reference position.
Because the utility model measurement mechanism mainly is in the on-the-spot use of transformer station, when guaranteeing its precision, physical strength, necessary convenient in carrying, in light weight, therefore measurement mechanism is selected the material of physical strength height, light weight for use, can guarantee precision and physical strength like this, be applicable to work on the spot again.
Description of drawings
Fig. 1 is the utility model portable V type loaded switch movable contact pressure measurement device configurations synoptic diagram;
Fig. 2 is the left view of Fig. 1;
Fig. 3 be among Fig. 1 A to view (remove pressure-measuring device and panel);
Fig. 4 is the structural representation that is installed in the utility model measurement mechanism on the loaded switch main shaft;
Fig. 5 is the left view of Fig. 4.
Among the figure: 1,13 armfuls of circles, 2,19 upper fixed seats, 26,27 lower fixed seats, 3,18 base plate axle sleeves, 4,15,16,17 axle sleeves, 5,14,6,20,23,24 panel axle sleeves, 7,8 guide rails, 9 base plates, 10 pressure-measuring devices, 11 panels, 12 handles, 21 switch spindle, 22 switch movable contacts, 25 worm screws, 28 worm gears, 29 extension springs, 30 armfuls of circle bodies, 31 armfuls of circle curved booms.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, Fig. 2, Fig. 3, a kind of portable V type loaded switch movable contact device for pressure measurement partly is made up of measuring mechanism part and fixed pedestal.
Measuring mechanism partly comprises holder, base plate 9, base plate axle sleeve 3,18, guide rail 7,8, panel axle sleeve 6,20,23,24, panel 11, pressure-measuring device 10, extension spring 29, handle 12, worm gear 28, worm screw 25.Holder is made up of upper fixed seat 2,19 and lower fixed seat 26,27, and holder is installed on the base plate 9, and two guide rails 7,8 are installed in respectively between upper fixed seat 2,19 and the lower fixed seat 26,27, and two guide rails 7,8 are fixed on the base plate 9.Panel 11 rear portions are installed on two guide rails 7,8 by four panel axle sleeves 6,20,23,24, and panel 11 can be slided up and down along guide rail 7,8, and pressure-measuring device 10 is equipped with in panel 11 front portions.Handle 12 also is housed on the base plate 9, and handle 12 1 ends are equipped with worm gear 28, and the worm screw 25 of matching with worm gear 28 is installed on the panel 11, but turning handle 12 panels 11 move up and down, thereby can regulate the height of pressure-measuring device 10.Between panel 11 rear portions and base plate 9 extension spring is housed, behind measuring contacts pressure, panel-mounted pressure-measuring device can be got back to original position.Two base plate axle sleeves 3,18 also are installed on the base plate 9, are used for base plate 9 is sleeved on axle 5,14.
The fixed pedestal part is made up of an armful circle 1,13, axle sleeve 4,15,16,17, axle 5,14, two axles 5,14 are fixing by two that are positioned at two ends four axle sleeves 4,15,16,17 of embracing on the circle 1,13 respectively, also be set with two the base plate axle sleeves 3,18 that are fixed on the base plate 9 on two axles 5,14 simultaneously, base plate 9 becomes vertical configuration with the axial line of two axles 5,14, like this measuring mechanism part just and two embrace 1,13 and two axle of circle 5,14 and form wholely, embrace circle 1,13 and can be fixed on the V-type loaded switch main shaft that needs measuring contacts pressure.Embrace circle 1,13 by embracing circle body 30 and embracing a circle curved boom 31 and forms, embrace circle curved boom 31 2 ends and enclose body 30 bottoms two ends and be hinged and snapping with embracing respectively; Embracing circle body 30 tops is the pit shape, and axle sleeve 4,15 (or axle sleeve 16,17) is equipped with on pit shape two arm tops respectively.
Axle 5,14, base plate 9 and embrace the material that circle 1,13 can be selected physical strength height, light weight for use can guarantee that like this measuring accuracy is convenient to carrying again.
Referring to Fig. 4, Fig. 5, in the transformer maintenance sites, be fixed on the main shaft 21 that needs the V-type of measuring contacts pressure loaded switch embracing circle 1,13, axle 5,14 is respectively by passing in the axle sleeve of embracing on the circle 13 16,17, after axle 5,14 passed two the base plate axle sleeves 3,18 that are fixed on the base plate 9 more respectively then, two axle sleeves 4,15 from another armful circle 1 passed.The measuring mechanism part of partly being made up of base plate 9, panel 11, pressure-measuring device 10 etc. so just and embrace the fixed pedestal that 1,13 and two axle 5,14 of circle etc. partly forms by two and partly form a whole is fixed on the V-type loaded switch main shaft 21.The measuring mechanism part that pressure-measuring device 10 is housed is slided axially into moving contact 22 places of V-type loaded switch main shaft along axle 5,14, rotating two armfuls of circles 1,13 makes measurement mechanism around 21 rotations of V-type loaded switch main shaft, make pressure-measuring device 10 over against V-type loaded switch movable contact 22, adjusting handle 12 makes pressure-measuring device 10 to bottom offset, make the spring system compressive deformation of moving contact 22 by pressure-measuring device 10, the pressure the when spring system of measuring moving contact 22 reaches standard distortion size.
Switch movable contact 22 pressure are key parameters of loaded switch, and its quality state directly influences the serviceable life of loaded switch, measure moving contact 22 pressure by measurement mechanism of the present utility model, can realize by the loaded switch site examining and repairing its state being assessed.
The utility model pick-up unit rig-site utilization is in the pressure survey of transformer V-type loaded switch movable contact, solved the blind spot that in V-type loaded switch site examining and repairing, only relies on artificial experience for many years and can't quantitative measurment, stop the serious accident that produces owing to the dynamic/static contact loose contact effectively, can improve the transformer operational reliability greatly, reduce operating cost.
Claims (2)
1, a kind of portable V type loaded switch movable contact device for pressure measurement partly is made up of measuring mechanism part and fixed pedestal, it is characterized in that:
Measuring mechanism partly comprises holder, base plate, base plate axle sleeve, guide rail, panel axle sleeve, panel, pressure-measuring device, extension spring, handle, worm gear, worm screw; Holder is made up of upper fixed seat and lower fixed seat, and holder is installed on the base plate, and two base plate axle sleeves also are installed on the base plate, and two guide rails are installed in respectively between upper fixed seat and the lower fixed seat, and panel is installed on two guide rails by the panel axle sleeve; Handle also is housed on the base plate, and handle one end is equipped with worm gear, is installed on the panel with the worm screw of worm wheel; Between panel and the base plate extension spring is housed, pressure-measuring device is installed on the panel;
The fixed pedestal part is made up of an armful circle, axle sleeve, axle, two axles are fixed by two axle sleeves embracing on the circle that are positioned at two ends respectively, also be set with two base plate axle sleeves that are fixed on the base plate on two axles simultaneously, base plate becomes vertical configuration with the axial line of two axles, embraces circle and can be fixed on the V-type loaded switch main shaft that needs measuring contacts pressure.
2, a kind of portable V type loaded switch movable contact device for pressure measurement according to claim 1 is characterized in that: embrace circle by embracing the circle body and embracing a circle curved boom and forms, embrace circle curved boom two ends and enclose body bottom two ends and be hinged and snapping with embracing respectively; Embracing circle body top is the pit shape, and axle sleeve is equipped with on pit shape two arm tops respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201991967U CN201138256Y (en) | 2007-12-13 | 2007-12-13 | Pressure measurement apparatus for moving contact of portable V typed loaded switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201991967U CN201138256Y (en) | 2007-12-13 | 2007-12-13 | Pressure measurement apparatus for moving contact of portable V typed loaded switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201138256Y true CN201138256Y (en) | 2008-10-22 |
Family
ID=40038940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201991967U Expired - Lifetime CN201138256Y (en) | 2007-12-13 | 2007-12-13 | Pressure measurement apparatus for moving contact of portable V typed loaded switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201138256Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101206147B (en) * | 2007-12-13 | 2010-04-21 | 上海电力变压器修试厂有限公司 | Pressure measurement device for portable V type loaded switch movable contact |
| CN109323787A (en) * | 2017-08-01 | 2019-02-12 | 平高集团有限公司 | A kind of fingertip clamping force measuring device |
-
2007
- 2007-12-13 CN CNU2007201991967U patent/CN201138256Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101206147B (en) * | 2007-12-13 | 2010-04-21 | 上海电力变压器修试厂有限公司 | Pressure measurement device for portable V type loaded switch movable contact |
| CN109323787A (en) * | 2017-08-01 | 2019-02-12 | 平高集团有限公司 | A kind of fingertip clamping force measuring device |
| CN109323787B (en) * | 2017-08-01 | 2021-08-06 | 平高集团有限公司 | Contact finger clamping force measuring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20081022 Effective date of abandoning: 20071213 |