CN102305887B - Discharging current counter - Google Patents
Discharging current counter Download PDFInfo
- Publication number
- CN102305887B CN102305887B CN 201110149244 CN201110149244A CN102305887B CN 102305887 B CN102305887 B CN 102305887B CN 201110149244 CN201110149244 CN 201110149244 CN 201110149244 A CN201110149244 A CN 201110149244A CN 102305887 B CN102305887 B CN 102305887B
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- plate
- housing
- pure iron
- gear
- shell
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- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The invention discloses a discharging current counter comprising a shell, wherein one end close to an observation port in the shell is provided with a digital display wheel with a gear, and the other end is provided with U-shaped electrician pure iron; the middle in the shell is provided with a switching plate by a first shaft; the switching plate is provided with a driving tooth, a locking tooth, a control slot and a suction surface; a reset spring is arranged between the switching plate and the shell; the shell is internally provided with a control rod matched with the control slot; positions corresponding to U-shaped electrician pure iron groove on the top and bottom of the shell are provided with long holes; a conducting plate penetrates through the long holes and the U-shaped electrician pure iron slot and is fixed with the shell by a supporting plate; and the two sides of the conducting plate in the shell are provided with second insulating plates. The discharging current counter has the advantages of simple structure and stable and reliable property, dose not need power supply, cannot be interfered and can count effective action discharge of a multi-action discharge protector.
Description
Technical field
The present invention relates to the discharge current counter, be applicable to the action frequency record of repeatedly action discharge prevention device in the contact nets in electrified railways earthed system (be the repeatedly action discharge prevention device of ZL91233112.7 as the patent No.) discharge.
Background technology
When the contact nets in electrified railways electric power system was short-circuited fault, the repeatedly action discharge prevention device of contact net earthed system discharge ground connection was finished the protection process.Because the effective action discharge time of discharge prevention device of repeatedly moving is limited in six times, surpass six times and namely need change this discharge prevention device, therefore need count repeatedly moving the effective action discharge of discharge prevention device.
Summary of the invention
The purpose of this invention is to provide a kind of simple in structurely, interference-free, need not power supply, the discharge current counter of dependable performance is to count repeatedly moving the effective action discharge of discharge prevention device reliably.
Discharge current counter of the present invention, comprise an end band viewport, top and bottom are the housing of insulcrete, the numeral of an end mounting strap gear of close described viewport shows wheel in the housing, the other end is installed the U-shaped electrical pure iron, the middle part is installed by first and is dialled plate in the housing, described group of plate has the driving gear that drives described gear rotation, locking teeth to described gear position locking, control the control flume of the each rotational angle of described gear, and for the adhesive face that cooperates with described U-shaped electrical pure iron, dial to be provided between plate and the housing making and dial plate to the back-moving spring of the direction swing of the described gear of locking, the control lever that cooperates with described control flume is set in the housing, the top of housing and the bottom position corresponding with the groove of described U-shaped electrical pure iron arranges slotted hole, one current-carrying plate runs through the groove of described slotted hole and U-shaped electrical pure iron and fixes by back up pad and housing, in the both sides of described current-carrying plate second insulcrete is set in the housing.During use the current-carrying plate of this discharge current counter is serially connected in and repeatedly moves in the discharge loop of discharge prevention device, when repeatedly moving the puncture of discharge prevention device, discharge current flows through the current-carrying plate of this counter, generate an electromagnetic field around the U-shaped electrical pure iron described group of plate produced suction, dialling plate overcomes the pulling force of back-moving spring and swings, make its locking teeth and numeral show that the gear on the wheel separates, driving gear and the engagement of described gear also promote the gear rotation, and control flume and the corresponding control lever dialled on the plate cooperate control to dial the pendulum angle of plate, thereby the angle that control gear rotates, guarantee that each discharge makes numeral show that wheel rotates lattice, thereby realize the discharge counting; Discharge loop current vanishes after the discharge prevention device that repeatedly moves discharge is over, U-shaped power that electrical pure iron generates an electromagnetic field reduces or disappears, under action of reset spring; dial the plate backswing; driving gear separates with described gear, and locking teeth and gear engagement lock gear position.
Further, can be provided for regulating the adjusting screw(rod) of the distance between U-shaped electrical pure iron and the described group of plate at the closing end of described U-shaped electrical pure iron, this adjusting screw(rod) passes described housing.By regulating the distance between U-shaped electrical pure iron and the described group of plate, can make a kind of discharge current counter of model can be used on the occasion of different discharge currents, as 3kA, 5kA, 10kA etc., improved the versatility of discharge current counter.
This discharge current counter structure is simple, need not power supply, and is interference-free, stable and reliable for performance, can be accurately and reliably counts repeatedly moving the effective action discharge of discharge prevention device.Can be used for repeatedly moving in the various holding circuits discharging action counting of discharge prevention device, be particularly suitable for the discharging action counting that repeatedly moves the discharge prevention device in the contact nets in electrified railways earthed system.
Description of drawings
Fig. 1-4 is the structural representation of embodiment discharge current counter, and wherein Fig. 1 is front view, and Fig. 2 is left view, and Fig. 3 is rear view, and Fig. 4 is vertical view.
Fig. 5 is the A-A cut-open view of Fig. 1.
Fig. 6 is the B-B cut-open view of Fig. 2.
Fig. 7-8 is the structural representation that its numeral shows wheel, and wherein Fig. 7 is front view, and Fig. 8 is right view.
Fig. 9-11 is the structural representation of its group plate, and wherein Fig. 9 is front view, and Figure 10 is left view, and Figure 11 is vertical view.
The structural representation of its U-shaped electrical pure iron of Figure 12-13, wherein Figure 12 is front view, Figure 13 is left view.
Figure 14 uses synoptic diagram for it.
Figure 15 is its application principle figure.
Embodiment
The present invention is further described below in conjunction with drawings and Examples.
With reference to Fig. 1-13, this discharge current counter comprises that housing 1, numeral show wheel 2, dial plate 4, back-moving spring 6, current-carrying plate 7 and U-shaped electrical pure iron 9.
The closing end 92 of U-shaped electrical pure iron 9 has for the adjusting screw(rod) 93 of regulating the distance H between U-shaped electrical pure iron 9 and the described group of plate 4, this adjusting screw(rod) 93 passes the end 14 of described housing 1, can regulate distance H between U-shaped electrical pure iron 9 and the described group of plate 4 by rotation adjusting screw(rod) 93, can make this discharge current counter be applicable to the occasion of different discharge currents.Exemplary embodiments is by the position of change adjusting screw(rod) 93, applicable to the occasion of 3-10KA discharge current.
Numeral shows that wheel 2 contains main wheel 21, and the periphery of main wheel 21 arranges coding, and the two ends of main wheel 21 set firmly described gear 22 and weighting distribution wheel 23 respectively, and described gear 22 and weighting distribution wheel 23 are all coaxial with main wheel 21.In the exemplary embodiments, gear 22 has ten teeth, the periphery of described main wheel 21 be encoded in turn the numeral 0 to 9 of arranging.
The biside plate 15 of housing 1,16 upper limb and lower edge have outside flanging, and described flanging is used for top board and the assembling of base plate and housing 1 side plate and the assembling of back up pad 8 and housing 1 of housing 1.
Figure 14 is the application synoptic diagram of this discharge current counter.Figure 15 is its application principle figure.Wherein represent repeatedly to move the discharge prevention device with 100; 300 this discharge current of expression counters; the discharge prevention device 100 that repeatedly moves is fixed on the installing plate 200; the terminals 101 of discharge prevention device 100 of repeatedly moving are current input terminal; another terminals are connected with the upper end of the current-carrying plate 7 of this discharge current counter 300, the lower end ground connection of current-carrying plate 7.
When repeatedly moving 100 punctures of discharge prevention device, discharge current flows through the current-carrying plate 7 of this counter 300, generate an electromagnetic field around the U-shaped electrical pure iron 9 described group of plate 4 produced suction, this suction makes group plate 4 overcome the pulling force of back-moving spring 6 and swings around first 5, make its locking teeth 42 and numeral show that the gear 22 on the wheel 2 separates, driving gear 41 is with described gear 22 engagements and promote gear 22 along counterclockwise rotating among Fig. 5, on the other hand, the control flume of dialling on the plate 4 43 cooperates control to dial the pendulum angle of plate 4 with corresponding control lever 3, thereby the angle that control gear 22 rotates, guarantee that each discharge makes numeral show that wheel 2 rotates lattice, thereby realize the discharge counting; Discharge loop current vanishes after discharge prevention device 100 discharges of repeatedly moving are over; U-shaped electrical pure iron 9 generates an electromagnetic field and reduces or disappear; under back-moving spring 6 effects; dial plate 4 reverse (namely pressing clockwise direction among Fig. 5) swing; driving gear 41 is separated with described gear 22; locking teeth 42 and gear 22 engagements, with gear 22 locking positions, numeral shows the position after wheel 2 remains on rotation.When repeatedly moving the puncture 100 next time of discharge prevention device, repeat said process.
The size that flows through the discharge current of current-carrying plate 7 can influence the power of the electromagnetic field that produces around the U-shaped electrical pure iron 9, it whether determined can to dial plate 4 produce pulling force that enough suction removes to overcome described back-moving spring 6 make dial plate 4 swings go to drive numeral shows that wheel 2 rotates and behind counting counter whether can in time reset.U-shaped electrical pure iron 9 in the present embodiment is provided with adjusting screw(rod) 93, can regulate the distance H between U-shaped electrical pure iron 9 and the described group of plate 4, when the discharge current of application site hour, turn the distance H between described U-shaped electrical pure iron 9 and the described group of plate 4 down, make U-shaped electrical pure iron 9 produce the pulling force that enough suction removes to overcome described back-moving spring 6 to dialling plate 4, drive group plate 4 and swing, and then the driving numeral shows that taking turns 2 rotations finishes counting; When the discharge current of application site is big, transfer the distance H between big described U-shaped electrical pure iron 9 and the described group of plate 4, counter can in time be resetted behind counting.Therefore can be applicable to the occasion of different discharge currents.
Claims (6)
1. discharge current counter, it is characterized in that: comprise an end band viewport (11), top (12) and bottom (13) are the housing (1) of insulcrete, the numeral of an end mounting strap gear (22) of close described viewport shows wheel (2) in the housing (1), the other end is installed U-shaped electrical pure iron (9), the middle part is installed by first (5) and is dialled plate (4) in the housing (1), described group of plate (4) has the driving gear (41) that drives described gear (22) rotation, locking teeth (42) to described gear (22) locking position, control the control flume (43) of the each rotational angle of described gear (22), and for the adhesive face (44) that cooperates with described U-shaped electrical pure iron (9), dial to be provided between plate (4) and the housing (1) making and dial plate (4) to the back-moving spring (6) of the direction swing of the described gear of locking (22), the control lever (3) that cooperates with described control flume (43) is set in the housing (1), the top of housing (1) and the bottom position corresponding with the groove (91) of described U-shaped electrical pure iron (9) arranges slotted hole (12 '), one current-carrying plate (7) runs through the groove (91) of described slotted hole (12 ') and U-shaped electrical pure iron and passes through back up pad (8,8 ') fixing with housing (1), in the both sides of described current-carrying plate (7) second insulcrete (7 ') is set in the housing.
2. discharge current counter according to claim 1, it is characterized in that: the closing end (92) of described U-shaped electrical pure iron (9) has for the adjusting screw(rod) (93) of regulating the distance between U-shaped electrical pure iron and the described group of plate (4), and this adjusting screw(rod) (93) passes described housing.
3. discharge current counter according to claim 1, it is characterized in that: described group of plate (4) contains a U-lag (40), the trench bottom of U-lag (40) is described adhesive face (44), the upper and lower of a cell wall (45) of U-lag extends to form diminishing first adjutage of width (46) and second adjutage (47) along the direction away from bottom land respectively, the length of first adjutage is greater than the length of second adjutage, the end of first adjutage extends to form described driving gear (41) downwards, the end of second adjutage extends upward and forms described locking teeth (42), the root edge place of second adjutage arranges described control flume (43), the upper end of (40) two cell walls of U-lag arranges axis hole (48), and the lower end of U-lag (40) bottom land arranges the hanging hole (49) of described back-moving spring (6).
4. discharge current counter according to claim 1, it is characterized in that: described numeral shows that wheel (2) contains main wheel (21), the periphery of main wheel (21) arranges coding, the two ends of main wheel (21) set firmly described gear (22) and weighting distribution wheel (23) respectively, and described gear and weighting distribution wheel and main wheel are coaxial.
5. discharge current counter according to claim 4, it is characterized in that: described gear (22) has ten teeth, the periphery of described main wheel (21) be encoded to the numeral 0 to 9 of arranging in turn.
6. discharge current counter according to claim 1, it is characterized in that: upper limb and the lower edge of the biside plate of described housing (1) (15,16) have outside flanging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110149244 CN102305887B (en) | 2011-06-03 | 2011-06-03 | Discharging current counter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110149244 CN102305887B (en) | 2011-06-03 | 2011-06-03 | Discharging current counter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102305887A CN102305887A (en) | 2012-01-04 |
| CN102305887B true CN102305887B (en) | 2013-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110149244 Expired - Fee Related CN102305887B (en) | 2011-06-03 | 2011-06-03 | Discharging current counter |
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| CN (1) | CN102305887B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1080754A (en) * | 1992-06-20 | 1994-01-12 | 王国才 | Double-pointer electromagnetic counter |
| CN201110869Y (en) * | 2007-10-22 | 2008-09-03 | 武汉大学 | Line arrester positioning indicator |
| CN101702013A (en) * | 2009-12-22 | 2010-05-05 | 北京送变电公司 | Testing device of lightning stroke counter |
| CN202110212U (en) * | 2011-06-03 | 2012-01-11 | 湛江高压电器有限公司 | Discharge current counter |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7277781B2 (en) * | 2004-05-14 | 2007-10-02 | General Motors Corporation | Method of undervoltage protection during engine cranking |
| JP5094797B2 (en) * | 2009-08-07 | 2012-12-12 | 日立オートモティブシステムズ株式会社 | DC power supply smoothing capacitor discharge circuit |
-
2011
- 2011-06-03 CN CN 201110149244 patent/CN102305887B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1080754A (en) * | 1992-06-20 | 1994-01-12 | 王国才 | Double-pointer electromagnetic counter |
| CN201110869Y (en) * | 2007-10-22 | 2008-09-03 | 武汉大学 | Line arrester positioning indicator |
| CN101702013A (en) * | 2009-12-22 | 2010-05-05 | 北京送变电公司 | Testing device of lightning stroke counter |
| CN202110212U (en) * | 2011-06-03 | 2012-01-11 | 湛江高压电器有限公司 | Discharge current counter |
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| Publication number | Publication date |
|---|---|
| CN102305887A (en) | 2012-01-04 |
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Granted publication date: 20130821 Termination date: 20210603 |