CN102490732A - Main transformer loosening prevention device for electric locomotive - Google Patents
Main transformer loosening prevention device for electric locomotive Download PDFInfo
- Publication number
- CN102490732A CN102490732A CN2011103827737A CN201110382773A CN102490732A CN 102490732 A CN102490732 A CN 102490732A CN 2011103827737 A CN2011103827737 A CN 2011103827737A CN 201110382773 A CN201110382773 A CN 201110382773A CN 102490732 A CN102490732 A CN 102490732A
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- China
- Prior art keywords
- loosening prevention
- seat
- electric locomotive
- anticreep
- transformer
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- 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.)
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Abstract
The invention discloses a main transformer loosening prevention device for an electric locomotive. A transformer mounting seat is fastened on a transformer mounting beam by bolts. The main transformer loosening prevention device for the electric locomotive is characterized in that the lower part of the transformer mounting seat is in lap joint with a loosening prevention seat; a gap is reserved between the loosening prevention seat and the front side of the transformer mounting seat and is 0.5-3mm; the loosening prevention seat is sheathed on a loosening prevention bolt; the lower part of the loosening prevention seat is fastened by the loosening prevention nut; the loosening prevention bolt is welded on the mounting beam; the main body of the loosening prevention seat is cylindrical; one section of boss radially extends out of the outer circumstance of a cylinder; and the boss is positioned below the transformer mounting seat and keeps a gap with the transformer mounting seat. The main transformer loosening prevention device for the electric locomotive has the advantages of small volume and compact structure, can perform the protecting action in a limited space to reduce accidents and protect the safety of locomotive and passengers, and is suitable for protecting the main transformer of the electric locomotive.
Description
Technical field
The present invention relates to electric locomotive safety apparatus technical field, relate in particular to a kind of electric locomotive main transformer anti-drop device.
Background technology
Along with rapid development of economy; Present railway transport capacity also needs to promote; Bring the continuous speed-raising of railway thus; Safety to locomotive behind the railway speed increase has proposed the more requirement of Gao Gengyan, and locomotive main transformer is being brought into play the function of " heart " in electric locomotive, is the indispensable vitals of electric locomotive.The main transformer of the once-through type electric locomotive of utilization is installed between locomotive machinery at present, and mount pad need not be considered the problem of anticreep onboard; But the AC type electric locomotive is because the mounting means that adopts is a underslung under the car, the lifting of electric locomotive single shaft power, the also corresponding increase of the total volume of main transformer; Add the raising of locomotive speed; The reliability requirement of the installation of voltage transformer is increasingly high, and therefore essential consideration voltage transformer anticreep problem needs safe and reliable voltage transformer anti-drop device.
Electric locomotive with present F-Zero 120km/h is an example, and 4 mount pads have several hold-down bolts on each mount pad; Consider from anticreep; Respectively there is chock the end of mount pad, can reduce in the locomotive operation shearing force to bolt, if but this structure when not considering that all hold-down bolts of voltage transformer all go wrong; The protection of voltage transformer, safety performance are not high.
Summary of the invention
The technical matters that the present invention solved is therefore to need to increase more safe and reliable anti-drop device to guarantee the safe in operation of locomotive.
The technical scheme that the present invention adopts is, the electric locomotive main transformer anti-drop device, and the voltage transformer mount pad is anchored on the voltage transformer mounting rail with screw; It is characterized in that: voltage transformer mount pad below overlaps with the anticreep seat mutually; Keeping gap, gap width before anticreep seat and the voltage transformer mount pad is 0.5-3mm, on anticreep cover for seat dress and the anticreep bolt; Anticreep seat below is fastening by screwed retaining ring, and the anticreep bolt is captiveed joint with the voltage transformer mounting rail.
The gap width preferred value is 1mm.
Anticreep stud weld is connected to mounting rail.
The Tightening moment of nut is 4100N.m.
Be provided with the pad of bending between screwed retaining ring and the anticreep seat.
Anticreep seat main body is cylindrical, extends radially out one section boss on the excircle of cylinder, and boss is positioned at voltage transformer mount pad below and keeps the gap.
The invention has the beneficial effects as follows that can actv. guarantee the installation of voltage transformer, device volume is little, compact conformation can play a protective role in limited space, and the generation of minimizing accident prevents trouble before it happens, and ensures locomotive and passenger's safety.
Description of drawings
Fig. 1 looks up the voltage transformer erection plan of direction at the bottom of for car.
Fig. 2 is a chock baffle arrangement of looking up direction.
Fig. 3 is the cooresponding front view of Fig. 2.
Fig. 4 is a structural representation of the present invention.
Fig. 5 is an anticreep seat front view.
Be labeled as among the figure: 1-voltage transformer mounting rail, 2-voltage transformer mount pad, 3-hold-down bolt, 4-anticreep bolt, 5-screwed retaining ring, 6-pad, 7-anticreep seat, 71-boss, 8-bearing cap shim, 9-chock, 10-baffle plate.
The specific embodiment
Like Fig. 1, shown in Figure 2, the mount pad structure is constant, is example with 4 mount pads, and the hold-down bolt 3 of 4 M24 is arranged on each, and in the end of mount pad chock 9 is arranged respectively, increases anti-drop device in the inboard of mount pad.Anti-drop device is as shown in Figure 4, and anticreep bolt 4 is fixed on the voltage transformer mounting rail 1, offers modes such as via hole through welding manner or at voltage transformer mounting rail 1; Anticreep seat 7 supports are in voltage transformer mount pad 2 bottoms; But gap between the two guarantees at 0.5-3mm, and if very close to each other between the voltage transformer mount pad 2, produce between locomotive and the voltage transformer mount pad 2 and impact or vibration; Anticreep bolt 4 can bear the reverse stress that voltage transformer mount pad 2 brings; When the hold-down bolt 3 of locomotive main transformer went wrong, anticreep bolt 4 also can produce certain damage, can not play due anticreep effect.If gap width is too big; Displacement downward when main transformer comes off is too big, adds the relatively conference of voltage transformer own wt, and anticreep seat 7 is had very big impulsive force; And if the displacement under the main transformer is too big; The on line of its each terminal all can be tightened, and because of the stressed excessive potential safety hazard that occurs, the words that gap width is too little also cause the contact of the two easily; Optimized gap width is that the structure of
anticreep seat 7 is as shown in Figure 5; Anticreep seat 7 main bodys are cylindrical, extend radially out one section boss 71 on the excircle of cylinder, and boss 71 is positioned at voltage transformer mount pad 2 belows and keeps the gap; Column part and voltage transformer mount pad 2 are laterally not overlapping, make compact conformation.
In normal operation, anticreep seat 7 is out-of-action, and only when all hold-down bolts 3 were all ineffective, anticreep seat 7 can hold up the voltage transformer of whereabouts, plays the effect of protection, the unlikely accident that causes that locomotive breaks up.If excessive clearance can be adjusted with bearing cap shim 8 accordingly.Anticreep seat 7 belows are fastening by screwed retaining ring 5, and screwed retaining ring 5 usefulness torque spanners are turned round stubborn, and Tightening moment is 4100N.m.End slow effect for playing, the pad 6 between anticreep seat 7 and the screwed retaining ring 5 is turned up then, and the pad 6 of bending is only extenuated the shake better effects if, and anticreep bolt 4 adopts M42 bolt, the preferred 45# steel of anticreep bolt material, the preferred Q345E of anticreep seat material.
Claims (6)
1. electric locomotive main transformer anti-drop device; Voltage transformer mount pad (2) is anchored on voltage transformer mounting rail (1) with screw, it is characterized in that: voltage transformer mount pad (2) below overlaps with anticreep seat (7) mutually, and anticreep seat (7) keeps the gap before with voltage transformer mount pad (2); Gap width is 0.5-3mm; On anticreep seat (7) suit and the anticreep bolt (4), anticreep seat (7) below is fastening by screwed retaining ring (5), and anticreep bolt (4) is captiveed joint with voltage transformer mounting rail (1).
2. electric locomotive main transformer anti-drop device as claimed in claim 1 is characterized in that: said gap width is 1mm.
3. electric locomotive main transformer anti-drop device as claimed in claim 1 is characterized in that: said anticreep bolt (4) is welded in mounting rail.
4. electric locomotive main transformer anti-drop device as claimed in claim 1 is characterized in that: the Tightening moment of screwed retaining ring (5) is 4100N.m.
5. electric locomotive main transformer anti-drop device as claimed in claim 1 is characterized in that: the pad (6) that is provided with bending between screwed retaining ring (5) and the anticreep seat (7).
6. electric locomotive main transformer anti-drop device as claimed in claim 1; It is characterized in that: said anticreep seat (7) main body is cylindrical; Extend radially out one section boss (71) on the excircle of cylinder, boss (71) is positioned at voltage transformer mount pad (2) below and keeps the gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103827737A CN102490732A (en) | 2011-11-27 | 2011-11-27 | Main transformer loosening prevention device for electric locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103827737A CN102490732A (en) | 2011-11-27 | 2011-11-27 | Main transformer loosening prevention device for electric locomotive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102490732A true CN102490732A (en) | 2012-06-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103827737A Pending CN102490732A (en) | 2011-11-27 | 2011-11-27 | Main transformer loosening prevention device for electric locomotive |
Country Status (1)
| Country | Link |
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| CN (1) | CN102490732A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102866005A (en) * | 2012-09-13 | 2013-01-09 | 中国北车集团大连机车车辆有限公司 | Safety anti-drop detection device for part at bottom of locomotive |
| CN104290769A (en) * | 2014-10-30 | 2015-01-21 | 无锡金鑫集团股份有限公司 | Motor train unit under-car suspension piece bottom plate equipment anti-separating lock |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03204369A (en) * | 1990-01-08 | 1991-09-05 | Sumitomo Metal Ind Ltd | Body bending vibration preventing device and installation method thereof |
| JP2010111197A (en) * | 2008-11-05 | 2010-05-20 | Mitsubishi Electric Corp | Supporting structure of power converter for railroad vehicle |
| CN201573656U (en) * | 2009-10-14 | 2010-09-08 | 南车株洲电力机车有限公司 | Mounting beam of transformer of electric locomotive |
| CN201610143U (en) * | 2009-12-24 | 2010-10-20 | 南车南京浦镇车辆有限公司 | Anti-drop piece for large equipment of chassis of railway vehicle |
| CN201745603U (en) * | 2010-06-12 | 2011-02-16 | 中国北车集团大同电力机车有限责任公司 | Suspension-type mounting structure for main transformer of electric locomotive |
-
2011
- 2011-11-27 CN CN2011103827737A patent/CN102490732A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03204369A (en) * | 1990-01-08 | 1991-09-05 | Sumitomo Metal Ind Ltd | Body bending vibration preventing device and installation method thereof |
| JP2010111197A (en) * | 2008-11-05 | 2010-05-20 | Mitsubishi Electric Corp | Supporting structure of power converter for railroad vehicle |
| CN201573656U (en) * | 2009-10-14 | 2010-09-08 | 南车株洲电力机车有限公司 | Mounting beam of transformer of electric locomotive |
| CN201610143U (en) * | 2009-12-24 | 2010-10-20 | 南车南京浦镇车辆有限公司 | Anti-drop piece for large equipment of chassis of railway vehicle |
| CN201745603U (en) * | 2010-06-12 | 2011-02-16 | 中国北车集团大同电力机车有限责任公司 | Suspension-type mounting structure for main transformer of electric locomotive |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102866005A (en) * | 2012-09-13 | 2013-01-09 | 中国北车集团大连机车车辆有限公司 | Safety anti-drop detection device for part at bottom of locomotive |
| CN104290769A (en) * | 2014-10-30 | 2015-01-21 | 无锡金鑫集团股份有限公司 | Motor train unit under-car suspension piece bottom plate equipment anti-separating lock |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120613 |