CN204296486U - Cantilever base under the list of contact net - Google Patents
Cantilever base under the list of contact net Download PDFInfo
- Publication number
- CN204296486U CN204296486U CN201420669085.8U CN201420669085U CN204296486U CN 204296486 U CN204296486 U CN 204296486U CN 201420669085 U CN201420669085 U CN 201420669085U CN 204296486 U CN204296486 U CN 204296486U
- Authority
- CN
- China
- Prior art keywords
- journal stirrup
- base body
- bar hole
- curved surface
- shaped curved
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses cantilever base under a kind of list of contact net, the integrated forging part of body, die forging one-shot forming; Body is connected and composed by base body and the first journal stirrup, the second journal stirrup, 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; On base body, the base body between the first journal stirrup and the second journal stirrup, is designed to indent arc-shaped curved surface, and the axis of indent arc-shaped curved surface is parallel with the second journal stirrup with the first journal stirrup, and the radius of described indent arc-shaped curved surface is R is 40 ~ 100mm.Cantilever base under the utility model list, two journal stirrups and base body adopt forging part one-shot forming structure, have increased substantially the mechanical property such as intensity, rigidity, and enhance the bearing capacity of lower cantilever base self, swinging property of antidetonation improves greatly; Be indent arc-shaped curved surface between two journal stirrups, be conducive to improving integrally-built intensity; Bullet train driving safety coefficient is high, meets the requirement of bullet train line safety traffic.
Description
Technical field
The utility model relates to a kind of appurtenances of railway line contact net supporting seat, cantilever base under the list of especially contact net.
Background technology
Cantilever base under the list of contact net, as the vitals of railway line contact net, 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 net concussion frequency also strengthens thereupon, proposes higher performance requirement to associated components such as contact net, contact net supporting seats.
In prior art, under the list of contact net, 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 difference in height, 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 life cycle short, replacement and maintenance cost is high, affects the driving safety of train.
Summary of the invention
For prior art above shortcomings, the purpose of this utility model is to provide that a kind of intensity is high, forging time filling performance good, long service life die forging contact net list under cantilever base.
The technical solution of the utility model is as follows: cantilever base under a kind of list of contact net, comprises body, it is characterized in that: the integrated forging 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 a 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; Base body between the first journal stirrup and the second journal stirrup, is designed to indent arc-shaped curved surface, and the axis of indent arc-shaped curved surface is parallel with the second journal stirrup with the first journal stirrup, and the radius of described indent arc-shaped curved surface is R is 40 ~ 100mm.
Relative to prior art, under the list of the utility model contact net, cantilever base tool has the following advantages:
1, two journal stirrups and base body adopt forging part one-shot forming structure, have increased substantially the mechanical property such as intensity, rigidity, and enhance the bearing 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 syndeton, 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 bullet train driving safety coefficient is high, meets the requirement that speed per hour is 250 ~ 350h/km or bullet train line safety traffic faster.
Accompanying drawing explanation
Fig. 1 is the front view of cantilever base under the utility model;
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 utility model is described in further detail.
As Figure 1-3, a kind of lower cantilever base of railway line contact net supporting seat, comprises body 1, the integrated forging 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 recesses, 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.
What finally illustrate is; above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted; although be described in detail the utility model with reference to preferred embodiment; those of ordinary skill in the art should be appreciated that and all should to fall among the claimed scope of the utility model for the replacement/amendment not departing from technical solutions of the utility model.
Claims (1)
1. cantilever base under the list of contact net, comprises body (1), it is characterized in that: described body (1) integrated forging 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; Base body (2) between first journal stirrup (3) and the second journal stirrup (4), is designed to indent arc-shaped curved surface, and the axis of indent arc-shaped curved surface is parallel with the second journal stirrup (4) with the first journal stirrup (3), and the radius of described indent arc-shaped curved surface is R is 40 ~ 100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420669085.8U CN204296486U (en) | 2014-11-11 | 2014-11-11 | Cantilever base under the list of contact net |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420669085.8U CN204296486U (en) | 2014-11-11 | 2014-11-11 | Cantilever base under the list of contact net |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204296486U true CN204296486U (en) | 2015-04-29 |
Family
ID=53102057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420669085.8U Expired - Fee Related CN204296486U (en) | 2014-11-11 | 2014-11-11 | Cantilever base under the list of contact net |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204296486U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107909778A (en) * | 2017-10-30 | 2018-04-13 | 南宁市浩发科技有限公司 | Velocity detects and system for prompting |
-
2014
- 2014-11-11 CN CN201420669085.8U patent/CN204296486U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107909778A (en) * | 2017-10-30 | 2018-04-13 | 南宁市浩发科技有限公司 | Velocity detects and system for prompting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150429 Termination date: 20151111 |
|
| EXPY | Termination of patent right or utility model |