CN104309498A - Forged and stamped single lower cantilever base of railway line contact network - Google Patents
Forged and stamped single lower cantilever base of railway line contact network Download PDFInfo
- Publication number
- CN104309498A CN104309498A CN201410630549.9A CN201410630549A CN104309498A CN 104309498 A CN104309498 A CN 104309498A CN 201410630549 A CN201410630549 A CN 201410630549A CN 104309498 A CN104309498 A CN 104309498A
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- China
- Prior art keywords
- base body
- journal stirrup
- supporting lug
- base
- bar hole
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Links
- 238000005242 forging Methods 0.000 claims abstract description 25
- 238000004080 punching Methods 0.000 claims description 15
- 239000011229 interlayer Substances 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000007704 transition Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000035939 shock Effects 0.000 abstract 1
- 230000000875 corresponding effect Effects 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 210000000038 chest Anatomy 0.000 description 1
- 230000009514 concussion Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Forging (AREA)
Abstract
The invention discloses a forged and stamped single lower cantilever base of a railway line contact network. The forged and stamped single lower cantilever base is an integral die forging part and is formed by connecting a base body, a first supporting lug and a second supporting lug, wherein the axes of the first supporting lug and the second supporting lug are parallel, and the first supporting lug and the second supporting lug are perpendicular to the base body. A first strip-shaped hole and a second strip-shaped hole are formed in the base body, and the axis of the first strip-shaped hole and the axis of the second strip-shaped hole are perpendicular to each other. The connecting positions between the first supporting lug and the second supporting lug and the base body form circular-arc transition. The first supporting lug and the second supporting lug are in shapes of big-end-down cones and have gradient phi. The two supporting lugs and the base body of the single lower cantilever base are die forging parts and form a structure formed in one time, strength and rigidity are remarkably improved, and bearing capacity and shock resistance are improved. a smooth connecting structure is formed between the base body and the supporting lugs, stress concentration is not easily caused, cracks produced in the using process are avoided, the service life of the lower cantilever base is prolonged, and replacement and maintenance cost is reduced.
Description
Technical field
The present invention relates to the appurtenances relating to a kind of railway line contact system supporting seat, cantilever base under the forging punching press list of especially railway line contact system.
Background technology
Cantilever base under the forging punching press list of railway line contact system, as the vitals of railway line contact system, has important effect in guarantee train safe traveling.Along with the raising of railway speed, present train speed per hour reaches 250 ~ 350h/km, certainly also have higher rate request from now on, therefore the railway line contact system concussion frequency also strengthens thereupon, proposes higher performance requriements to associated components such as contact system, contact system supporting seats.
In prior art, under the forging punching press list of railway line contact system, cantilever base adopts forging molding mode to make, in use, and correlated performance detect in, its performance is still difficult to reach higher level, at least can not adapt to vehicle more speed require, distance between two journal stirrup tops of these parts and base body (base plane) is comparatively large, defines larger diff-H, and when forging and pressing, filling performance reduces, two journal stirrup tops easily form related defects, form substandard products or waste product; And the connecting portion of two journal stirrups and base body, easily produce stress and concentrate and occur slight crack, even rupture, cause operating cycles short, replacement and maintenance cost is high, affects the driving safety of train.
Summary of the invention
For prior art above shortcomings, the object of this invention is to provide that a kind of intensity is high, forging time filling performance good, long service life die forging railway line contact system forging punching press list under cantilever base.
Technical scheme of the present invention is as follows: cantilever base under a kind of forging punching press list of railway line contact system, comprises body, it is characterized in that: the integrated die-forged part of described body, die forging one-shot forming; Body is connected and composed by base body and the first journal stirrup, the second journal stirrup, the axis being parallel of the first journal stirrup, the second journal stirrup, and vertical with base body; Base body is provided with the first bar hole and the second bar hole, the axis perpendicular of the first bar hole and the second bar hole;
The connecting portion of the first journal stirrup, the second journal stirrup and base body, for circular arc excessively connects, radius of the radian R is 5 ~ 20mm; First journal stirrup, the second journal stirrup are up-small and down-big taper, have gradient Φ, and gradient scope is 2 degree-8 degree.
First bar hole and the second bar hole, all adopt the mode that first die forging is forged, at the corresponding formation in upper and lower surface inside recess, between upper and lower two corresponding inside recesss, have an interlayer, the thickness of interlayer between 0.5-2 mm, then adopts the mode of punching press, interlayer is washed out, obtains the hole of punching press.
Relative to prior art, under the forging punching press list of railway line contact system of the present invention, cantilever base tool has the following advantages:
1, two journal stirrups and base body adopt die-forged part one-shot forming structure, have increased substantially the mechanical property such as intensity, rigidity, and enhance the load-carrying capacity of lower cantilever base self, swinging property of antidetonation improves greatly.
2, at the connecting portion of base body and journal stirrup, for radius of the radian R is the arc transition of 5 ~ 20mm, form level and smooth connection structure, the connecting portion of journal stirrup and base body is not easy to produce stress and concentrates, avoid occurring slight crack in use, extend the life-span of lower cantilever base, reduce replacement and maintenance cost.
3, highly higher journal stirrup, adopts larger gradient, improves filling performance during forging, avoids ear top and forms related defects, improve the qualification rate of product.
4, on base body, be indent arc-shaped curved surface between two journal stirrups, its radius is R is 35 ~ 100mm, and such as R is 40,55mm, 68mm, 76mm, 88mm or 100mm, is conducive to improving integrally-built intensity,
5, this lower cantilever base is rational in infrastructure, intensity is high, and high speed train driving safety coefficient is high, meets the requirement that speed per hour is 250 ~ 350h/km or high speed train line safety traffic faster.
Accompanying drawing explanation
Fig. 1 is the front view of cantilever base under the present invention;
Fig. 2 is the upward view (partly cuing open) of Fig. 1;
Fig. 3 is the left view of Fig. 1.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As Figure 1-3, a kind of lower cantilever base of railway line contact system supporting seat, comprises body 1, the integrated die-forged part of described body 1, die forging one-shot forming; Body 1 is connected and composed by base body 2 and the first journal stirrup 3, second journal stirrup 4, the axis being parallel of the first journal stirrup 3, second journal stirrup 4, and the first journal stirrup 3, second journal stirrup 4 is vertical with base body 2 to be arranged; Base body 2 is provided with the axis perpendicular of the first bar hole 5 and the second bar hole 6, first bar hole 5 and the second bar hole 6.Namely the length direction of the first bar hole 5 and the second bar hole 6 is perpendicular.
The connecting portion of the first journal stirrup 3, second journal stirrup 4 and base body 2, for circular arc excessively connects, radius of the radian R is 5 ~ 20mm; First journal stirrup 3, second journal stirrup 4 is up-small and down-big taper, has gradient Φ, and gradient scope is 2 degree-8 degree; On base body 2, base body 2 between the first journal stirrup 3 and the second journal stirrup 4, be designed to indent arc-shaped curved surface, the axis of indent arc-shaped curved surface is parallel with the second journal stirrup 4 with the first journal stirrup 3, the radius of described indent arc-shaped curved surface is R is 40 ~ 100mm, such as R is 40mm, 45 mm, 50mm, 60mm, 75 mm, 80mm, 90mm or 100mm, be conducive to improving integrally-built intensity, the more important thing is simultaneously and solve the problem that contour forging technique processes two journal stirrup difficulties, be applicable to the die forging of single mode thorax, reduce further forging cost.
First bar hole 5 and the second bar hole 6, all adopt the mode that first die forging is forged, in the corresponding hole forming an indent, upper and lower surface, all form blind hole, between upper and lower two inside recesss, also have an interlayer, the thickness of interlayer between 0.5-2 mm, then adopts the mode of punching press, interlayer is washed out, obtains two holes of punching press.Adopt die forging to combine with punching one-shot forming, drastically reduce the area processing capacity, improve production efficiency.
What finally illustrate is; above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted; although with reference to preferred embodiment to invention has been detailed description; those of ordinary skill in the art should be appreciated that the replacement/amendment for not departing from technical solution of the present invention all should fall among the scope of protection of present invention.
Claims (1)
1. cantilever base under the forging punching press list of railway line contact system, comprises body (1), it is characterized in that: described body (1) integrated die-forged part, die forging one-shot forming; Body (1) is connected and composed by base body (2) and the first journal stirrup (3), the second journal stirrup (4), the axis being parallel of the first journal stirrup (3), the second journal stirrup (4), base body (2) is provided with the first bar hole (5) and the second bar hole (6), the axis perpendicular of the first bar hole (5) and the second bar hole (6);
The connecting portion of the first journal stirrup (3), the second journal stirrup (4) and base body (2), for circular arc excessively connects, radius of the radian R is 5 ~ 20mm; First journal stirrup (3), the second journal stirrup (4) are up-small and down-big taper, have gradient Φ, and gradient scope is 2 degree-8 degree;
First bar hole (5) and the second bar hole (6), all adopt the mode that first die forging is forged, at the corresponding formation in upper and lower surface inside recess, an interlayer is had between upper and lower two corresponding inside recesss, the thickness of interlayer is between 0.5-2 mm, adopt the mode of punching press again, interlayer is washed out, obtain the hole of punching press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410630549.9A CN104309498A (en) | 2014-11-11 | 2014-11-11 | Forged and stamped single lower cantilever base of railway line contact network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410630549.9A CN104309498A (en) | 2014-11-11 | 2014-11-11 | Forged and stamped single lower cantilever base of railway line contact network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104309498A true CN104309498A (en) | 2015-01-28 |
Family
ID=52364868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410630549.9A Pending CN104309498A (en) | 2014-11-11 | 2014-11-11 | Forged and stamped single lower cantilever base of railway line contact network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104309498A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999058362A1 (en) * | 1998-05-08 | 1999-11-18 | Kummler + Matter Ag | Supporting and fastening device for contact wires |
| CN2883065Y (en) * | 2006-03-20 | 2007-03-28 | 中铁电气化局集团宝鸡器材厂 | Single slot bearing cable base |
| CN201633571U (en) * | 2010-05-07 | 2010-11-17 | 重庆众诚精密模锻有限公司 | Lower cantilever base for railway line catenary |
| CN201736835U (en) * | 2010-06-08 | 2011-02-09 | 重庆众诚精密模锻有限公司 | Upper cantilever base seat arranged on electrified railway contact net |
| CN201998821U (en) * | 2011-01-07 | 2011-10-05 | 四川龙腾铁路器材有限公司 | Electrified railway contact network bracket base |
| CN203246341U (en) * | 2013-03-22 | 2013-10-23 | 中铁电气化局集团宝鸡接触网器材检测中心有限公司 | Lower base for cantilever |
-
2014
- 2014-11-11 CN CN201410630549.9A patent/CN104309498A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999058362A1 (en) * | 1998-05-08 | 1999-11-18 | Kummler + Matter Ag | Supporting and fastening device for contact wires |
| CN2883065Y (en) * | 2006-03-20 | 2007-03-28 | 中铁电气化局集团宝鸡器材厂 | Single slot bearing cable base |
| CN201633571U (en) * | 2010-05-07 | 2010-11-17 | 重庆众诚精密模锻有限公司 | Lower cantilever base for railway line catenary |
| CN201736835U (en) * | 2010-06-08 | 2011-02-09 | 重庆众诚精密模锻有限公司 | Upper cantilever base seat arranged on electrified railway contact net |
| CN201998821U (en) * | 2011-01-07 | 2011-10-05 | 四川龙腾铁路器材有限公司 | Electrified railway contact network bracket base |
| CN203246341U (en) * | 2013-03-22 | 2013-10-23 | 中铁电气化局集团宝鸡接触网器材检测中心有限公司 | Lower base for cantilever |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150128 |