CN203974841U - A kind of New Type of Railway Freight Cars brake shoe - Google Patents
A kind of New Type of Railway Freight Cars brake shoe Download PDFInfo
- Publication number
- CN203974841U CN203974841U CN201420373184.1U CN201420373184U CN203974841U CN 203974841 U CN203974841 U CN 203974841U CN 201420373184 U CN201420373184 U CN 201420373184U CN 203974841 U CN203974841 U CN 203974841U
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- China
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- brake shoe
- way
- holder
- new type
- locating piece
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Abstract
The utility model discloses a kind of New Type of Railway Freight Cars brake shoe, comprise brake shoe steel backing and brake shoe holder, on the faying face of described brake shoe steel backing and described brake shoe holder, increase by two two-way locating pieces, position by two two-way knock holees on these two two-way locating pieces and brake shoe holder faying face; Described two-way locating piece is arranged on the both sides of described brake shoe steel backing, and described brake shoe holder and described two-way locating piece closely cooperate.The structure of this brake shoe can solve brake shoe nose both sides because being subject to tangential force impact, the damage easily causing or fracture, reliability and the service life of having improved brake shoe.
Description
Technical field
The utility model relates to track brake technical field, relates in particular to a kind of New Type of Railway Freight Cars brake shoe.
Background technology
At present, in railway wagon brake shoe brake field, railway wagon brake brake shoe is generally fixed on brake head through Wa Tuo and brake shoe skewer hole by brake shoe skewer.In brake process, on brake shoe friction face, be subject to normal stress and shearing stress, wherein, because wheel and the fricative shearing stress of brake shoe can make brake shoe along rotation of wheel direction vibration, therefore watt nose groove both sides can be subject to the extruding of brake head.
Because watt skewer hole bending part of brake shoe steel backing on watt nose groove both sides is the weakest, the frequent braking of train and recasting moving in, may cause a watt nose both sides metal to occur tired and damage, in serious situation, can cause brake shoe to tear even fracture at watt four fillet places in Yan Waqian hole, nose groove both sides, from using the on-the-spot brake shoe statistics that fracture occurs, most of brake shoe is to occur crackle or fracture in watt nose both sides, service life and the traffic safety of brake shoe are badly influenced, if fracture brake shoe falls at track switch to cause serious train operation accident.
Summary of the invention
The purpose of this utility model is to provide a kind of New Type of Railway Freight Cars brake shoe, can solve brake shoe nose both sides because being subject to tangential force impact, the damage easily causing or fracture, reliability and the service life of having improved brake shoe.
A kind of New Type of Railway Freight Cars brake shoe, described brake shoe comprises brake shoe steel backing and brake shoe holder, wherein:
On the faying face of described brake shoe steel backing and described brake shoe holder, increase by two two-way locating pieces, position by two two-way knock holees on these two two-way locating pieces and brake shoe holder faying face;
Described two-way locating piece is arranged on the both sides of described brake shoe steel backing, and described brake shoe holder and described two-way locating piece closely cooperate.
The cross-sectional plane of described two-way locating piece is the rectangle of equal-sized.
Tolerance clearance between described two-way locating piece and described two-way knock hole is less than the tolerance clearance between described brake shoe nose groove both sides and corresponding watt of holder.
The technical scheme being provided by above-mentioned the utility model can find out, this New Type of Railway Freight Cars can solve brake shoe nose both sides because being subject to tangential force impact, the damage easily causing or fracture, reliability and the service life of having improved brake shoe by the structure of brake shoe.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the section-drawing of brake shoe for New Type of Railway Freight Cars that the utility model provides;
Fig. 2 is the steel backing front elevation of brake shoe described in the utility model embodiment;
Fig. 3 is watt holder front elevation of brake shoe described in the utility model embodiment.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment.Based on embodiment of the present utility model, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to protection domain of the present utility model.
Below in conjunction with accompanying drawing, the utility model embodiment is described in further detail, is illustrated in figure 1 the section-drawing of New Type of Railway Freight Cars that the utility model provides brake shoe, as can be known from Fig. 1, described brake shoe comprises brake shoe steel backing 1 and brake shoe holder 2, wherein:
On the faying face of described brake shoe steel backing 1 and described brake shoe holder 2, increase by two two-way locating pieces 3, position with two two-way knock holees 4 on brake shoe holder 2 faying faces by these two two-way locating pieces 3;
Described two-way locating piece 3 is arranged on the both sides of described brake shoe steel backing 1, and described brake shoe holder 2 closely cooperates with described two-way locating piece 3.
In concrete braking procedure, brake shoe is during along rotation of wheel direction play, locating piece 2 and the first contact of knock hole, it is stressed that the squeese pressure that reason brake head is produced watt nose both sides is transferred to locating piece, reduce the application force of watt nose both sides, thereby reduce the damage of brake shoe nose, greatly reduce brake shoe at a watt probability for nose groove both sides fracture, thereby increased brake shoe nose structural strength and connected stable.
Be illustrated in figure 2 the steel backing front elevation of brake shoe described in the present embodiment, be illustrated in figure 3 watt holder front elevation of brake shoe described in the present embodiment, in conjunction with Fig. 2 and 3 known:
In the two-way locating piece 3 of brake shoe steel backing 1 both sides and Fig. 3, the knock hole 4 of watt holder 2 closely cooperates, and the cross-sectional plane of two-way locating piece can be the rectangle of equal-sized here;
In addition; tolerance clearance between above-mentioned two-way locating piece and described two-way knock hole is less than the tolerance clearance between described brake shoe nose groove both sides and corresponding watt of holder; this locating piece is arranged on the centre of brake shoe steel backing; can effectively protect lorry track brake time; the brake shoe drill causing due to tangential force, to a watt nose both sides tensile damage, extends reliability and the service life of lorry brake shoe.
In sum, described in the present embodiment, New Type of Railway Freight Cars has solved brake shoe nose both sides because being subject to tangential force impact, the damage easily causing or fracture, reliability and the service life of having improved brake shoe by the structure of brake shoe.
The above; it is only preferably detailed description of the invention of the utility model; but protection domain of the present utility model is not limited to this; any be familiar with those skilled in the art the utility model disclose technical scope in; the variation that can expect easily or replacement, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (3)
1. a New Type of Railway Freight Cars brake shoe, is characterized in that, described brake shoe comprises brake shoe steel backing and brake shoe holder, wherein:
On the faying face of described brake shoe steel backing and described brake shoe holder, increase by two two-way locating pieces, position by two two-way knock holees on these two two-way locating pieces and brake shoe holder faying face;
Described two-way locating piece is arranged on the both sides of described brake shoe steel backing, and described brake shoe holder and described two-way locating piece closely cooperate.
2. New Type of Railway Freight Cars brake shoe according to claim 1, is characterized in that,
The cross-sectional plane of described two-way locating piece is the rectangle of equal-sized.
3. New Type of Railway Freight Cars brake shoe according to claim 1, is characterized in that,
Tolerance clearance between described two-way locating piece and described two-way knock hole is less than the tolerance clearance between described brake shoe nose groove both sides and corresponding watt of holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420373184.1U CN203974841U (en) | 2014-07-07 | 2014-07-07 | A kind of New Type of Railway Freight Cars brake shoe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420373184.1U CN203974841U (en) | 2014-07-07 | 2014-07-07 | A kind of New Type of Railway Freight Cars brake shoe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203974841U true CN203974841U (en) | 2014-12-03 |
Family
ID=51972314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420373184.1U Active CN203974841U (en) | 2014-07-07 | 2014-07-07 | A kind of New Type of Railway Freight Cars brake shoe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203974841U (en) |
-
2014
- 2014-07-07 CN CN201420373184.1U patent/CN203974841U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |