CN201672155U - Anchor ear on electrification contact line for railway - Google Patents
Anchor ear on electrification contact line for railway Download PDFInfo
- Publication number
- CN201672155U CN201672155U CN2010202188686U CN201020218868U CN201672155U CN 201672155 U CN201672155 U CN 201672155U CN 2010202188686 U CN2010202188686 U CN 2010202188686U CN 201020218868 U CN201020218868 U CN 201020218868U CN 201672155 U CN201672155 U CN 201672155U
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- hole
- fixed hole
- anchor ear
- railway
- fixing hole
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Abstract
The utility model discloses an anchor ear on the electrification contact line for the railway, comprising a main body in arc structure, wherein a through-hole and a first fixing hole are arranged on one side of the main body, and a second fixing hole is arranged on the other side of the main body. The anchor ear of the utility model is characterized in that: the through-hole, the first fixing hole and the second fixing hole is molded by press in the mould when forge work. The two fixing holes and the through-hole of the anchor ear on the electrification contact line for railway are directly molded in the mould when forged, thereby omitting the subsequent machine finishing process, enhancing production efficiency, shortening the production period, and reducing the production cost; the stopping edges on the periphery of the two fixing holes are composed of an arc line and two sections of parallel straight line segments, forming a semi-surrounding structure, which is convenient for installing and can be matched with the screw cap of the attachment bolt for limited the screw cap to rotate; the height of the stopping edges on the periphery of the two fixing holes are enhanced, the contact part with the attachment bolt is enlarged, and the rotation of the attachment bolt in the fixing hole is completely limited, thereby increasing the connection reliability, and enhancing the safety.
Description
Technical field
The utility model relate to a kind of railway with the appurtenances on the electrified contacting nets, especially railway with the anchor ear on the electrified contacting nets.
Background technique
The anchor ear that uses on the electrification contact network as the vitals of clamping pipeline, is guaranteeing that train safe has important effect aspect travelling.The anchor ear of prior art, as shown in Figure 1, on forging, it is provided with the fixed hole of two fixedly connected bolts, with a through hole, these two fixed holes and through hole all are that the machining by the later stage obtains, and the shelves limit at two fixed hole edges has only the 3mm height; The not enough main following points of its existence: 1, the machining expense is higher, and the process-cycle is longer, the corresponding cost of production that increases anchor ear; 2, the shelves limit height at two fixed hole edges is lower, relative less with the contact position of connecting bolt, can not limit connecting bolt fully rotates in fixed hole, service time is long slightly, connecting bolt just can produce certain rotation in fixed hole, reduced the reliability that connects, also corresponding its Security of reduction; The shelves limit cooperates with the nuts of connecting bolt, is the equal of bolt slot, is the machining moulding because of forging difficulty height bolt slot in the past, and work efficiency is low.Raising along with electric railway speed, train speed per hour has reached 250～350h/km now, may reach from now under the higher situation, need to guarantee the safe trouble-free operation of train, the parts of the anchor ear that comprises the clamping pipeline proposed higher technical requirements.Trouble-free operation has formed potential safety hazard to the anchor ear of prior art to bullet train safety.
Summary of the invention
The utility model is held the above-mentioned deficiency of the anchor ear of pipeline at the Railway Electric network folder of prior art, especially the cost of production height, can not limit connecting bolt rotates caused its Security of reduction in fixed hole deficiency fully, provide a kind of cost of production to reduce, can limit connecting bolt and in fixed hole, rotate to guarantee the anchor ear of bullet train safety trouble-free operation needs.
The technical solution of the utility model: railway comprises the body of curved structure with the anchor ear on the electrified contacting nets, is provided with the through hole and first fixed hole in a side of body, is provided with second fixed hole at the opposite side of body; It is characterized in that: described through hole, first fixed hole and second fixed hole are made type at mould inner pressure when forging.
Further feature is: described through hole, first fixed hole and second fixed hole are on same the axis.
First fixed hole and the second fixed hole edge are provided with a grade limit, and described shelves limit is made up of with two sections parallel straightways one section circular arc line, and the two ends of circular arc line are connected with one section straightway respectively, form the semi-surrounding structure.
The two ends of circular arc line are tangent with one section straightway respectively and be connected.
The height of outstanding first fixed hole in described shelves limit or second fixed hole is between 4～10mm.
The utility model railway electrical equipment net anchor ear with respect to prior art, has following characteristics:
1, two fixed hole box through holes when forging in mould straight forming, saved the machining program in later stage, improved manufacturing efficiency, shortened the manufacture cycle, can reduce production costs.。
2, the shelves limit at two fixed hole edges is made up of with two sections parallel straightways one section circular arc line, forms the semi-surrounding structure, in the time of convenient the installation, can cooperate with the nut of connecting bolt, limits its rotation.
3, increased the shelves limit height at two fixed hole edges, bolt prevents to rotate when the aerial anchor ear of height assembles, improve installation efficiency, original design shelves limit has only the 3mm height, and the 5mm height is arranged after the change, the contact position of itself and connecting bolt increases, can limit connecting bolt fully and rotate in fixed hole, even in long using process, connecting bolt can not rotate in fixed hole, increase the reliability that connects, strengthened Security.
4, under the situation that electric railway speed increases substantially, also can adapt to the needs of bullet train safety trouble-free operation.
Description of drawings
Fig. 1 is the anchor ear structural front view of prior art;
Fig. 2 is the utility model anchor ear structural front view;
Fig. 3 is the left view of Fig. 1.
Embodiment
In Fig. 2,3, the utility model railway is with the anchor ear on the electrified contacting nets, the body 1 that comprises, the roughly curved structure of body 1, side at body 1 is provided with two holes, i.e. the through hole 2 and first fixed hole 3 are provided with second fixed hole 4 at the opposite side of body 1, first fixed hole 3, second fixed hole 4 be all as the pilot hole that connecting bolt is installed, and during installation the connecting bolt of adapted penetrated respectively in above-mentioned two fixed holes and connect.Through hole 2, first fixed hole 3 and second fixed hole 4 are made type at mould inner pressure when forging, do not need the machining in later stage; Through hole 2, first fixed hole 3 and second fixed hole 4 are on same the axis.First fixed hole 3 and second fixed hole, 4 edges are provided with grade limit 5, this grade limit 5 is made up of with two sections parallel straightways 7 one section circular arc line 6, the two ends of circular arc line 6 are connected with one section straightway 7 respectively, form the semi-surrounding structure, or the two ends of circular arc line 6 are tangent with one section straightway 7 respectively and be connected; The position that connecting bolt can be limited in the shelves limit 5 of the half-surrounded that one section circular arc line 6 and two sections parallel straightways 7 are formed cooperates with the nut of connecting bolt and prevents its rotation.In order to reach the effect that better restriction connecting bolt rotates, the height of shelves limit 5 outstanding first fixed holes 3 or second fixed hole 4 is between 4～10mm, shown in the figure 5mm, can increase the contact position of the nut end of itself and connecting bolt, the nut end that can limit connecting bolt fully rotates in fixed hole, even in long using process, connecting bolt can not rotate in fixed hole, increase the reliability that connects, strengthened Security.
Pitch-row between the through hole 2 of the present utility model and first fixed hole 3 is less, forges the difficulty height; Shelves of the present utility model limit 5 once-throughs are without machining.For the nut end that increases connecting bolt and the top platform area of contact of first fixed hole 3 or second fixed hole 4, make its area of contact greater than 70%, the top platform of first fixed hole 3 or second fixed hole 4 is little with the root radius that the transition on shelves limit 5 is connected circular arc, usually should the area of its top platform be increased as far as possible less than 0.5mm.
Claims (5)
1. railway comprises body (1) with the anchor ear on the electrified contacting nets, is provided with through hole (2) and first fixed hole (3) in a side of body (1), is provided with second fixed hole (4) at the opposite side of body (1); It is characterized in that: described through hole (2), first fixed hole (3) and second fixed hole (4) are made type at mould inner pressure when forging.
2. railway according to claim 1 is with the anchor ear on the electrified contacting nets, and it is characterized in that: described through hole (2), first fixed hole (3) and second fixed hole (4) are on same the axis.
3. railway according to claim 1 and 2 is with the anchor ear on the electrified contacting nets, it is characterized in that: first fixed hole (3) and second fixed hole (4) edge are provided with a grade limit (5), described shelves limits (5) are made up of with two sections parallel straightways (7) one section circular arc line (6), the two ends of circular arc line (6) are connected with one section straightway (7) respectively, form the semi-surrounding structure.
4. railway according to claim 3 is characterized in that with the anchor ear on the electrified contacting nets: the two ends of circular arc line (6) are tangent with one section straightway (7) respectively and be connected.
5. railway according to claim 3 is characterized in that with the anchor ear on the electrified contacting nets: the height of outstanding first fixed hole (3) in described shelves limits (5) or second fixed hole (4) is between 4～10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202188686U CN201672155U (en) | 2010-06-08 | 2010-06-08 | Anchor ear on electrification contact line for railway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202188686U CN201672155U (en) | 2010-06-08 | 2010-06-08 | Anchor ear on electrification contact line for railway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201672155U true CN201672155U (en) | 2010-12-15 |
Family
ID=43329567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202188686U Expired - Lifetime CN201672155U (en) | 2010-06-08 | 2010-06-08 | Anchor ear on electrification contact line for railway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201672155U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104494465A (en) * | 2014-11-10 | 2015-04-08 | 重庆众诚精密模锻有限公司 | Locating ring main hoop of contact network |
-
2010
- 2010-06-08 CN CN2010202188686U patent/CN201672155U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104494465A (en) * | 2014-11-10 | 2015-04-08 | 重庆众诚精密模锻有限公司 | Locating ring main hoop of contact network |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101215 |