CN101397017A - Combination type slant wedge - Google Patents
Combination type slant wedge Download PDFInfo
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- CN101397017A CN101397017A CNA2008102156502A CN200810215650A CN101397017A CN 101397017 A CN101397017 A CN 101397017A CN A2008102156502 A CNA2008102156502 A CN A2008102156502A CN 200810215650 A CN200810215650 A CN 200810215650A CN 101397017 A CN101397017 A CN 101397017A
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Abstract
The invention discloses a combined tapered wedge used for a steering frame of a railway vehicle, which comprises a main body of a tapered wedge and a main friction board; the main body of the tapered wedge is a hollow prismoid; the body of the tapered wedge is provided with a vertical main friction surface and also provided with an inclined secondary friction surface; the main friction board is arranged on the main friction surface of the tapered wedge; the left side and the right side of the secondary friction surface are provided with a first assistant friction surface; the first assistant friction surface is coplanar with the secondary friction surface and extends to the two sides of the secondary friction surface. The two sides of the secondary friction surface are respectively and fixedly connected with the assistant friction surface which is coplanar with the secondary friction surface, therefore, the shearing moment of the steering frame for resisting diamond deformation is remarkably enlarged, thereby improving the anti-diamond rigidity of the steering frame. The combined tapered wedge can improve the critical velocity of the snakelike instability of the railway vehicle; the rail vehicle can obtain better running stability and digression safety.
Description
Technical field
The present invention relates to the bogies for railway vehicles field, especially relate to a kind of combination type slant wedge that is used on the bogies for railway vehicles.
Background technology
Rolling stock is with being equipped with wedge on the bogie truck, the friction by wedge and truck side frame produces heat energy, thereby the vibration kinetic energy of car body is discharged into the atmosphere, and as can be seen, wedge has the effect of friction damping.
Usually, existing bogies for railway vehicles comprises bogie side frame, bolster, wedge and bolster spring, and the bolster bottom is assembled on the bogie side frame central authorities square frame by bolster spring, and the weight of rolling stock puts on the bogie side frame by bolster.Wedge is the friction damping parts, the cross section of this wedge is a wedge shape, has the secondary friction face of vertical main friction face and bevelled, the inclined-plane wearing plate contact friction on the secondary friction face of wedge and the inclined-plane of bolster, the column wearing plate contact friction of the main friction face of wedge and bogie side frame.
In the rolling stock vibration processes, bolster and wedge repeatedly carry out up-and-down movement along with moving of bolster, between the main friction face of column wearing plate and wedge, produce between the secondary friction face of the inclined-plane wearing plate of bolster and wedge and relatively move and mutual friction mutually, therefore cause that the kinetic energy of body vibrations can be converted into the heat energy that friction produces, thereby realize the friction damping of vehicle.
Bolster can be done with respect to left and right sides frame and drift along or the rolling pendulum motion, and still, left and right sides frame may promptly occur " diamonding " with respect to the changing of the relative positions before and after the bolster, and this is deletrious, should avoid.Its reason is that " diamonding " can weaken bogie truck it is taken turns the constraint of right serpentine locomotion, and then reduces the snakelike unstability critical speed of rolling stock.Therefore, bogie truck self should have suitable diamond resistant rigidity and suppresses described diamonding.
If bogie truck does not adopt the structure of special-purpose opposing diamonding in addition, when vehicle operating, only the spring by the bolster two ends and wedge retrain in the motion of shaking the head of the relative bolster of bogie side frame.Yet, because existing roller bearing adapter stabilizer bar wedge width is little, being generally 140～165mm, during high-speed cruising, because the width of wedge is less, thereby wedge can not provide enough diamond resistant rigidities to vehicle substantially in orbit." diamonding " of the bogie side frame of bogies for railway vehicles will cause the critical speed of vehicle hunting to reduce, thereby reduce operation stability, and cause the abrasion of wheel track serious.So just have to adopt certain structure to provide the bogie truck high-speed cruising required diamond resistant rigidity.
On the other hand, though some bogie of car is by widening the diamond resistant rigidity that wedge improves bogie truck, but because the material of the column wearing plate on the bogies for railway vehicles bogie side frame is metallic material, and wedge master friction face also adopts metallic material, friction pair is subjected to the influence of environment and two metallic contact apparent condition very big simultaneously like this, cause vehicle excessive owing to relative friction coefficient in initial operational phase on the one hand, oblique wedge vibration damper can not well play vibration-damping function; On the other hand along with the operation of rolling stock, wear away between the main friction face of wedge and column wearing plate, cause that the relative friction coefficient between main friction face and the column wearing plate is too small, lose vibration-damping function gradually, cause rolling stock key components and parts serious wear, reduce service life.
Summary of the invention
At the problems referred to above, the technical matters that the present invention solves is to provide a kind of combination type slant wedge, and this combination type slant wedge can improve the diamond resistant rigidity of bogies for railway vehicles, improves the snakelike unstability critical speed of rolling stock.
The combination type slant wedge that is used on the bogies for railway vehicles provided by the invention, comprise wedge main body and main friction plate, described wedge main body is the prism of hollow, this wedge main body has a vertical main friction face, this wedge main body also has the secondary friction face of a bevelled, described main friction plate is installed on the main friction face of described wedge, the left and right sides of described secondary friction face has the first auxiliary friction face, and the described first auxiliary friction face is with described secondary friction face coplane and to the extension of the both sides of this pair friction face.
Preferably, the described first auxiliary friction face and the described secondary friction face structure that is one.
Preferably, the left and right sides of described main friction face has the second auxiliary friction face, and the described second auxiliary friction face is with described main friction face coplane and to the extension of the both sides of this main friction face.
Preferably, the overall width of the described secondary friction face and the described first auxiliary friction face is 165mm～375mm.
Preferably, the angle between described main friction face and the described secondary friction face is 25 °～35 °.
Preferably, the overall width of the described main friction face and the described second auxiliary friction face is 165mm～375mm.
Preferably, described main friction plate is a platy structure, and the middle part of described main friction plate has projection; Have through hole on the main friction face of described wedge main body, the projection on the described main friction plate cooperates with through hole on the described main friction face.
Preferably, has radially pin-and-hole on the described projection.
Preferably, described main friction plate adopts the high molecular abrasion-proof material to make.
Preferably, the close position at two ends up and down has rib on the described main friction face, and the both sides up and down of described main friction plate are assembled in this rib.
Compared with prior art, the wedge of bogie truck provided by the present invention is on the basis of existing wedge, auxiliary friction face at the both sides of its secondary friction face difference captive joint and described secondary friction face coplane, therefore the shearing moment of the opposing diamonding of described bogie truck significantly strengthens, thereby has improved the diamond resistant rigidity of described bogie truck.When vehicle orbited like this, because the increase of diamond resistant rigidity, the snakelike unstability critical speed of vehicle was significantly improved, and described rolling stock can obtain better running stability and Derailment Safety.
In a preferred embodiment of the invention, because described main friction plate adopts the high molecular abrasion-proof material to make, thereby can realize that the vibration damping friction force changes with the variation of empty wagons or loaded vehicle load, has metastable friction coefficient between main friction plate and the column wearing plate, avoid because of the variation of friction coefficient influence, thereby improve the dynamic performance of rolling stock the rolling stock drive ability.And this main friction plate is changed easy, is convenient to maintenance.
Description of drawings
Fig. 1 is the structural representation of a kind of specific embodiment of combination type slant wedge provided by the invention;
Fig. 2 is the lateral plan of a kind of specific embodiment of wedge main body provided by the invention;
Fig. 3 is the axle side scheme drawing of the wedge main body among Fig. 2;
Fig. 4 is the structural representation of a kind of specific embodiment of main friction plate provided by the invention.
Reference numeral is as follows:
1 bogie side frame, 11 column wearing plates, 2 combination type slant wedges, 21 wedge main bodys
211 main friction face 212 secondary friction face 213 ribs
214 through holes, 215 first auxiliary friction face 22 packing rings
23 main friction plate 231 grooves 232 protruding 233 pin-and-holes
3 bolster springs, 4 bolster, 41 inclined-plane wearing plates
The specific embodiment
In order to make those skilled in the art better understand technical scheme of the present invention, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
With reference to figure 1, Fig. 1 is the structural representation of a kind of specific embodiment of combination type slant wedge provided by the invention.
As shown in Figure 1, the combination type slant wedge 2 that provides of present embodiment comprises wedge main body 21, main friction plate 23 and packing ring 22.Wedge main body 21 is the prism structure of hollow, the roughly rectangular trapezium structure of its longitudinal profile, and the wedge main body has vertical main friction face 211 and the secondary friction face 212 of bevelled, and main friction plate 23 is installed on the main friction face 211 of wedge main body 21.Packing ring 22 is installed between wedge main body 21 and the main friction plate 23.
Referring to figs. 2 and 3, Fig. 2 is the lateral plan of a kind of specific embodiment of wedge main body provided by the invention; Fig. 3 is the axle side scheme drawing of the wedge main body among Fig. 2;
As described in Figure 2, wedge main body 21 has vertical main friction face 211, and wedge main body 21 has the secondary friction face 212 of bevelled, has certain angle between main friction face 211 and the secondary friction face 212.Have one on the wedge main body 21 and hang down as for the through hole 214 of main friction face 211, the two ends up and down of close main friction face 21 have rib 213 respectively, and this rib 213 protrudes from main friction face 21.
As shown in Figure 3, the left and right sides of secondary friction face 212 has first auxiliary friction face 215, the first auxiliary friction faces 215 with secondary friction face 212 coplanes and to the extension of the both sides of this pair friction face 212.
In the present embodiment, the first auxiliary friction face 215 is structure as a whole with secondary friction face 212, and the first auxiliary friction face 215 is 165mm～375mm with the overall width of secondary friction face 212, in the present embodiment, specifically can get 240mm.
In addition, the left and right sides of main friction face 211 has the second auxiliary friction face (not shown), and this second auxiliary friction face is with main friction face 211 coplanes and to the extension of the both sides of this main friction face 211.The overall width of the second auxiliary friction face and main friction face 211 is 165mm～375mm, in the present embodiment, specifically can get 240mm.
As can be seen, in the combination type slant wedge that present embodiment provides, the both sides of secondary friction face 212 have the first auxiliary friction face 215 with secondary friction face 212 coplanes respectively, and the both sides of main friction face 211 have the second auxiliary friction face with main friction face 211 coplanes respectively, therefore, can significantly increase the shearing moment of the opposing diamonding of the bogie truck that this combination type slant wedge is installed, thereby improve the diamond resistant rigidity of this bogie truck.When rolling stock orbited, because the increase of diamond resistant rigidity, the snakelike unstability critical speed of rolling stock was significantly improved, and makes rolling stock can obtain better running stability and Derailment Safety.
With reference to figure 4, Fig. 4 is the structural representation of a kind of specific embodiment of main friction plate provided by the invention.
As shown in Figure 4, the main body of the main friction plate 23 that present embodiment provides is a platy structure, adopts the high molecular abrasion-proof material to make.The middle part of main friction plate 23 has projection 232, and in the present embodiment, projection 232 is a cylindrical structural, outward other analogous shapes.On projection 232, have pin-and-hole 233 radially, on main friction plate 23, have the groove 231 that hangs down as for main friction plate 23,, can judge the wear pattern of main friction plate 23 by estimating the degree of depth of this groove 231.During installation, the projection 232 on the main friction plate 23 cooperates with through hole 214 on the wedge main body 21, and bearing pin of insertion is used for fixing this main friction plate 23 in the pin-and-hole 233 on projection 232.Two end faces up and down of main friction plate 23 are fixed in the rib 212 of wedge main body 21, can very securely main friction plate 23 be fixed on the wedge main body 21.
The main friction plate 21 that present embodiment provides adopts the high molecular abrasion-proof material to make, metal upright post wearing plate friction on this main friction plate 21 and the bogie side frame, solved the relative friction coefficient instability problem that main friction plate is caused by ambient temperature and wearing and tearing, reduce the abrasion of wedge vibration insulating system, make rolling stock in use have more stable friction coefficient, vibration insulating system can better play a role, thereby improves the stability of the vertical dynamic performance of rolling stock.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. combination type slant wedge that is used on the bogies for railway vehicles, comprise wedge main body and main friction plate, described wedge main body is the prism of hollow, this wedge main body has a vertical main friction face, this wedge main body also has the secondary friction face of a bevelled, described main friction plate is installed on the main friction face of described wedge, it is characterized in that, the left and right sides of described secondary friction face has the first auxiliary friction face, and the described first auxiliary friction face is with described secondary friction face coplane and to the extension of the both sides of this pair friction face.
2. the wedge of bogie truck according to claim 1 is characterized in that, the structure that the described first auxiliary friction face and described secondary friction face are one.
3. the wedge of bogie truck according to claim 2 is characterized in that, the left and right sides of described main friction face has the second auxiliary friction face, and the described second auxiliary friction face is with described main friction face coplane and to the extension of the both sides of this main friction face.
4. combination type slant wedge according to claim 3 is characterized in that, the overall width of the described secondary friction face and the described first auxiliary friction face is 165mm～375mm.
5. combination type slant wedge according to claim 3 is characterized in that, the overall width of the described main friction face and the described second auxiliary friction face is 165mm～375mm.
6. combination type slant wedge according to claim 3 is characterized in that, the angle between described main friction face and the described secondary friction face is 25 °～35 °.
7. according to each described combination type slant wedge of claim 1-6, it is characterized in that described main friction plate is a platy structure, the middle part of described main friction plate has projection; Have through hole on the main friction face of described wedge main body, the projection on the described main friction plate cooperates with through hole on the described main friction face.
8. combination type slant wedge according to claim 7 is characterized in that, has pin-and-hole radially on the described main friction plate projection.
9. according to each described combination type slant wedge of claim 7, it is characterized in that described main friction plate adopts the high molecular abrasion-proof material to make.
10. combination type slant wedge according to claim 8 is characterized in that, the close position at two ends up and down has rib on the described main friction face, and the both sides up and down of described main friction plate are assembled in this rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102156502A CN101397017A (en) | 2008-09-08 | 2008-09-08 | Combination type slant wedge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102156502A CN101397017A (en) | 2008-09-08 | 2008-09-08 | Combination type slant wedge |
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| CN101397017A true CN101397017A (en) | 2009-04-01 |
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| CNA2008102156502A Pending CN101397017A (en) | 2008-09-08 | 2008-09-08 | Combination type slant wedge |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101830234A (en) * | 2010-04-27 | 2010-09-15 | 南车长江车辆有限公司 | Oblique wedge vibration damper for railway freight car bogie |
| CN101844567A (en) * | 2010-04-27 | 2010-09-29 | 南车长江车辆有限公司 | Large-diamond resistant rigidity railway truck steering frame |
| CN102032315A (en) * | 2010-12-30 | 2011-04-27 | 太原轨道交通装备有限责任公司 | Combined holder body |
| CN105011561A (en) * | 2015-08-03 | 2015-11-04 | 贾宁 | Rapid-releasing one-way locking device for adjustable keyboard rack |
| CN111361595A (en) * | 2020-04-09 | 2020-07-03 | 中国铁建高新装备股份有限公司 | Slide wedge vibration damper and slide wedge structure and wearing plate thereof |
| CN112208567A (en) * | 2019-07-12 | 2021-01-12 | 包头北方创业有限责任公司 | Wedge type combined shock absorber and railway wagon bogie |
-
2008
- 2008-09-08 CN CNA2008102156502A patent/CN101397017A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101830234A (en) * | 2010-04-27 | 2010-09-15 | 南车长江车辆有限公司 | Oblique wedge vibration damper for railway freight car bogie |
| CN101844567A (en) * | 2010-04-27 | 2010-09-29 | 南车长江车辆有限公司 | Large-diamond resistant rigidity railway truck steering frame |
| CN101830234B (en) * | 2010-04-27 | 2011-11-16 | 南车长江车辆有限公司 | Oblique wedge vibration damper for railway freight car bogie |
| CN102032315A (en) * | 2010-12-30 | 2011-04-27 | 太原轨道交通装备有限责任公司 | Combined holder body |
| CN105011561A (en) * | 2015-08-03 | 2015-11-04 | 贾宁 | Rapid-releasing one-way locking device for adjustable keyboard rack |
| CN112208567A (en) * | 2019-07-12 | 2021-01-12 | 包头北方创业有限责任公司 | Wedge type combined shock absorber and railway wagon bogie |
| CN111361595A (en) * | 2020-04-09 | 2020-07-03 | 中国铁建高新装备股份有限公司 | Slide wedge vibration damper and slide wedge structure and wearing plate thereof |
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Open date: 20090401 |