CN202735464U - Detection device for fault grounding point of crown block slide contact wire - Google Patents
Detection device for fault grounding point of crown block slide contact wire Download PDFInfo
- Publication number
- CN202735464U CN202735464U CN 201220236897 CN201220236897U CN202735464U CN 202735464 U CN202735464 U CN 202735464U CN 201220236897 CN201220236897 CN 201220236897 CN 201220236897 U CN201220236897 U CN 201220236897U CN 202735464 U CN202735464 U CN 202735464U
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- contact wire
- crown block
- transformer
- slide contact
- block slide
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Abstract
A detection device for fault grounding points of a crown block slide contact wire belongs to the technical field of crown block maintenance equipment, and is used for searching and positioning the fault grounding points of the crown block slide contact wire. The technical solution is that the detection device is composed of a DC power source circuit, a detection rod and a microammeter; one end of the DC power source circuit is connected with the crown block slide contact wire, and the other end of the DC power source circuit is connected with the ground; a terminal of the microammeter is connected with the detection rod through a lead, and the other terminal of the microammeter is connected with the crown block slide contact wire via the lead; and the detection rod is moving on and contacted with the crown block slide contact wire. The beneficial effects of the detection device are that when grounding faults of the crown block slide contact wire occur, insulating sleeve pipes on any support need not to be dismounted; accurate positions of the fault grounding points can be determined rapidly and accurately within a few minutes as along as the detection rod and the microammeter are utilized to detect a voltage drop of the DC power source circuit on the crown block slide contact wire, thereby saving a lot of manpower and time, and guaranteeing safe production and maintenance; and the device is simple in structure and low in cost.
Description
Technical field
The utility model relates to a kind of fault ground point to sliding contact wire of overhead traveling crane and carries out the Search and Orientation device, belongs to overhead traveling crane maintenance of equipment technical field.
Background technology
Overhead traveling crane is the transportation equipment that various types of production plants generally use, and moves at trapped orbit, and angle steel or small-sized steel rail are adopted in the power supply of overhead traveling crane, utilizes the mode of wiping to guarantee the supply of power supply, and the length of trolley is generally about 100 to 300 meters.Trolley is installed on the overhead crane orbit beam by support, is generally the conduction girder steel, and set spacing is generally 3 meters, has plastics or nylon sleeve to do insulation between angle iron sliding line and the support, and sleeve pipe is installed in inside, and outward appearance is invisible.When a variety of causes caused insulating sleeve to damage, angle iron sliding line had just linked to each other with the overhead crane orbit beam on electric, and " ground connection " fault has namely occured, and caused the switch trip to the overhead travelling crane sliding wire power supply, stopped work in the workshop, place.Up to the present, all be not used for specially detecting instrument or the equipment of sliding contact wire of overhead traveling crane fault ground point both at home and abroad.Generally, when sliding contact wire of overhead traveling crane earth fault occurs, if do not know accident spot, just need to pull down one by one the insulating sleeve on each support, because support has tens up to a hundred, need a large amount of electricians, and can need long time.The personnel that also have adopt in the situation that fault does not have to get rid of, and send in violation of rules and regulations electricity, and the place has larger ground current because of ground connection, sometimes have electric arc and produce, and insulating sleeve is smoldered, thereby find the trouble spot.Doing like this is to operate against regulations, might not can produce electric arc and smog, does not have effect, may cause on the contrary that switch is blown out to injure the operator, perhaps causes upper level switch breaking, causes the wider loss of power accident, and directly restriction is produced for a long time.Therefore, a kind of device that can fast detecting sliding contact wire of overhead traveling crane fault ground point of design is very necessary.
The utility model content
Technical problem to be solved in the utility model provides a kind of the needs insulating sleeve on the support is dismantled, and can detect quickly and easily the sliding contact wire of overhead traveling crane fault ground point detection device of trouble spot.
The technical scheme that solves the problems of the technologies described above is:
A kind of sliding contact wire of overhead traveling crane fault ground point detection device, it is comprised of DC power supply circuit, detector bar, microampere meter, one termination sliding contact wire of overhead traveling crane of DC power supply circuit, other end ground connection, a binding post of microampere meter is connected with detector bar by wire, another binding post of microampere meter is connected with sliding contact wire of overhead traveling crane by wire, moving contact on detector bar and the sliding contact wire of overhead traveling crane.
Above-mentioned sliding contact wire of overhead traveling crane fault ground point detection device, described DC power supply circuit comprises transformer B, rectifier bridge ZQ, current-limiting resistance R1, current limliting electricity R2, resistance R 3, electrochemical capacitor C, light emitting diode D1, light emitting diode D2, protective tube RD, the elementary 220V alternating voltage that connects of transformer B, current-limiting resistance R1, be attempted by the elementary of transformer B after the light emitting diode D1 series connection, protective tube RD is connected in the line of transformer B and 220V alternating voltage, the secondary rectifier bridge ZQ that connects of transformer B, current limliting electricity R2 be attempted by the secondary of transformer B after light emitting diode D2 connects, electrochemical capacitor C is attempted by the secondary of transformer B, resistance R 3 is connected on an output terminal of circuit, another output head grounding of circuit.
Usefulness of the present utility model is:
When overhead traveling crane trolley generation earth fault, needn't dismantle the insulating sleeve on any support, detect the accurate location that fault ground point just can be in minutes judged in the voltage drop of DC power supply circuit on sliding contact wire of overhead traveling crane quickly and accurately by detector bar and microampere meter, save a large amount of manpowers and time, guaranteed safety in production and maintenance.This device all adopts discrete component, and structure is very simple, with low cost.
Description of drawings
Fig. 1 is structure of the present utility model and uses constitutional diagram;
Fig. 2 is the circuit diagram of DC power supply circuit of the present utility model.
Mark is as follows among the figure: DC power supply circuit 1, detector bar 2, microampere meter 3, wire 4, sliding contact wire of overhead traveling crane 5, support 6, trouble spot 7, transformer B, rectifier bridge ZQ, current-limiting resistance R1, current limliting electricity R2, resistance R 3, electrochemical capacitor C, light emitting diode D1, light emitting diode D2, protective tube RD.
Embodiment
The utility model is comprised of signal supervisory instrument and DC power supply circuit.
Show among the figure, signal supervisory instrument comprises detector bar 2, microampere meter 3, wire 4, a binding post of microampere meter 3 is connected with detector bar 2 by wire 4, and another binding post of microampere meter 3 is connected with sliding contact wire of overhead traveling crane 5 by wire 4, and detector bar 2 is moving contact on sliding contact wire of overhead traveling crane 5.
Signal supervisory instrument utilizes voltage drop that DC power supply circuit 1 produces at the fault trolley as power supply, drive the microampere meter needle deflection, voltage drop between two supports 6 on the sliding contact wire of overhead traveling crane 5 just can make the microampere meter pointer that obvious deflection is arranged, by the movement of detector bar 2 on sliding contact wire of overhead traveling crane 5, observe the deflection situation of microampere meter pointer, the accurate location of earth fault until the support 6 at not deflection place, occurs in deflection amplitude from large to small exactly.
Show a termination sliding contact wire of overhead traveling crane 5 of DC power supply circuit 1, other end ground connection among the figure.
DC power supply circuit comprises transformer B, rectifier bridge ZQ, current-limiting resistance R1, current limliting electricity R2, resistance R 3, electrochemical capacitor C, light emitting diode D1, light emitting diode D2, protective tube RD.K switch is arranged among the figure; Protective tube RD shields; Light emitting diode D1 is red light emitting diodes, plays AC power supply indicative function, and current-limiting resistance R1 is its current-limiting resistance; Transformer B is miniature transformer, 220V voltage is reduced to the alternating current of several volts; Rectifier bridge ZQ transfers the alternating current of several volts to direct current; Electrochemical capacitor C becomes the direct current filtering that rectification goes out into level and smooth direct current; Light emitting diode D2 is green LED, is used to refer to dc voltage, and current-limiting resistance R2 is its current-limiting resistance; The effect of resistance R 3 is to obtain a larger DC current, for detection of the sliding contact wire of overhead traveling crane of fault.
The elementary 220V alternating voltage that connects of transformer B, be attempted by the elementary of transformer B after current-limiting resistance R1, the light emitting diode D1 series connection, protective tube RD is connected in the line of transformer B and 220V alternating voltage, the secondary rectifier bridge ZQ that connects of transformer B, current limliting electricity R2 be attempted by the secondary of transformer B after light emitting diode D2 connects, electrochemical capacitor C is attempted by the secondary of transformer B, and resistance R 3 is connected on an output terminal of circuit, another output head grounding of circuit.
Detection principle of the present utility model:
Show among the figure, numeral n, n-1, n-2 ... n, n-1, n-2 on the expression sliding contact wire of overhead traveling crane 5 ... until the position of first support, interval between adjacent stent is 3 meters, support 6 all is welded on (conduction girder steel) on the overhead crane orbit beam, under normal circumstances, support 6 insulate by insulating sleeve with sliding contact wire of overhead traveling crane 5.Suppose certain insulating sleeve insulation damages occurs, namely sliding contact wire of overhead traveling crane 5 ground connection can detect rapidly fault ground by this instrument and occur in which support 6 places.
Detection method of the present utility model:
After connecting the line by figure, DC power supply circuit 1 is connected the 220V alternating voltage, K closes a switch, red light emitting diodes D1 is bright, if trolley does not have earth point, green LED D2 is bright: if light emitting diode D2 cannot see light or only has faint light, illustrate that trolley has earth fault.
Detector bar 2 is touched about n/2 support place's slip (round numbers), if the microampere meter needle deflection illustrates that earth point is between first support and n/2; If the not deflection of microampere meter pointer illustrates that earth point is between support n/2 and n.
If the microampere meter needle deflection is then moved by the n/2 support detector bar 2 to support 1 direction, microampere meter 3 deflection amplitudes should be more and more less, and the pointer not place of deflecting is the ground connection place.
If not deflection of microampere meter pointer, then "-" utmost point lead-in wire of microampere meter 3 is received on the n/2 support place trolley, detector bar 2 is moved on on the n support place slip, move detector bar 2 to the n/2 holder orientation, microampere meter 3 deflection amplitudes should be more and more less, and the pointer not place of deflecting is the ground connection place.
Claims (2)
1. sliding contact wire of overhead traveling crane fault ground point detection device, it is characterized in that: it is comprised of DC power supply circuit (1), detector bar (2), microampere meter (3), one termination sliding contact wire of overhead traveling crane (5) of DC power supply circuit (1), other end ground connection, a binding post of microampere meter (3) is connected with detector bar (2) by wire (4), another binding post of microampere meter (3) is connected with sliding contact wire of overhead traveling crane (5) by wire (4), detector bar (2) and the upper moving contact of sliding contact wire of overhead traveling crane (5).
2. sliding contact wire of overhead traveling crane fault ground point detection device according to claim 1, it is characterized in that: described DC power supply circuit (1) comprises transformer B, rectifier bridge ZQ, current-limiting resistance R1, current limliting electricity R2, resistance R 3, electrochemical capacitor C, light emitting diode D1, light emitting diode D2, protective tube RD, the elementary 220V alternating voltage that connects of transformer B, current-limiting resistance R1, be attempted by the elementary of transformer B after the light emitting diode D1 series connection, protective tube RD is connected in the line of transformer B and 220V alternating voltage, the secondary rectifier bridge ZQ that connects of transformer B, current limliting electricity R2 be attempted by the secondary of transformer B after light emitting diode D2 connects, electrochemical capacitor C is attempted by the secondary of transformer B, resistance R 3 is connected on an output terminal of circuit, another output head grounding of circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220236897 CN202735464U (en) | 2012-05-24 | 2012-05-24 | Detection device for fault grounding point of crown block slide contact wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220236897 CN202735464U (en) | 2012-05-24 | 2012-05-24 | Detection device for fault grounding point of crown block slide contact wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202735464U true CN202735464U (en) | 2013-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220236897 Expired - Lifetime CN202735464U (en) | 2012-05-24 | 2012-05-24 | Detection device for fault grounding point of crown block slide contact wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202735464U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251957A (en) * | 2013-06-26 | 2014-12-31 | 上海梅山钢铁股份有限公司 | Coke oven sliding contact wire fault position detection method |
| CN109782050A (en) * | 2019-02-12 | 2019-05-21 | 武汉武船重型装备工程有限责任公司 | A kind of verification method of vertical safety trolley pressure drop |
-
2012
- 2012-05-24 CN CN 201220236897 patent/CN202735464U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251957A (en) * | 2013-06-26 | 2014-12-31 | 上海梅山钢铁股份有限公司 | Coke oven sliding contact wire fault position detection method |
| CN109782050A (en) * | 2019-02-12 | 2019-05-21 | 武汉武船重型装备工程有限责任公司 | A kind of verification method of vertical safety trolley pressure drop |
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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 | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 063016 Hebei province Tangshan City Road North Binhe Road, No. 9 Patentee after: River steel Limited by Share Ltd Tangshan branch Address before: 063016 Hebei province Tangshan City Road North Binhe Road, No. 9 Patentee before: Hebei Steel Co., Ltd., Tangshan Branch |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130213 |