CN108407845B - Shaft-mounted braking device for variable-gauge wheel pair - Google Patents
Shaft-mounted braking device for variable-gauge wheel pair Download PDFInfo
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- CN108407845B CN108407845B CN201810333757.0A CN201810333757A CN108407845B CN 108407845 B CN108407845 B CN 108407845B CN 201810333757 A CN201810333757 A CN 201810333757A CN 108407845 B CN108407845 B CN 108407845B
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- axle
- transition sleeve
- brake
- mounted brake
- variable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H11/00—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types
- B61H11/02—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types of self-applying brakes
- B61H11/04—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types of self-applying brakes with brake-applying force derived from rotation of axle
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- Mechanical Engineering (AREA)
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Abstract
The invention relates to the technical field of rail vehicle braking, and discloses a shaft-mounted braking device for a track-variable wheel pair, which comprises a transition sleeve, a positioning mechanism and a plurality of shaft-mounted braking discs, wherein the shaft-mounted braking discs are fixed on the transition sleeve at intervals, the transition sleeve is in spline fit connection with an axle of the track-variable wheel pair, and the positioning mechanism is used for connecting the transition sleeve with the axle to realize axial positioning of the transition sleeve relative to the axle. According to the invention, through improvement of the connection mode of the shaft-mounted brake disc and the axle, the relative positions of the brake clamp and the shaft-mounted brake disc can be kept unchanged when the track gauge is changed, so that the braking action under different track gauges is realized.
Description
Technical Field
The invention relates to the technical field of rail vehicle braking, in particular to a shaft-mounted braking device for a track-variable wheel pair.
Background
In order to meet the transportation requirements between different gauge tracks of adjacent countries, trucks with different wheel pair inner side gauges are replaced at junctions, and the scheme is high in cost and long in time consumption. Spain and Japan successively invented a variable gauge bogie which can continuously run between different gauge tracks.
In order to realize parking brake of a train, particularly a trailer, a shaft-mounted brake disc is usually installed on an axle of the trailer, and during braking, the shaft-mounted brake disc is tightly held by a brake caliper to realize parking brake.
Disclosure of Invention
Technical problem to be solved
The present invention is directed to solving at least one of the problems of the prior art or the related art.
The invention aims to provide a shaft-mounted brake device for a variable-gauge wheel pair, which is used for keeping the relative positions of a brake clamp and a shaft-mounted brake disc unchanged during the gauge change by improving the connection mode of the shaft-mounted brake disc and an axle.
(II) technical scheme
In order to solve the technical problem, the invention provides an axle-mounted braking device for a track-variable wheel pair, which comprises a transition sleeve, a positioning mechanism and a plurality of axle-mounted braking discs, wherein the axle-mounted braking discs are fixed on the transition sleeve at intervals, the transition sleeve is in spline fit connection with an axle of the track-variable wheel pair, and the positioning mechanism is used for connecting the transition sleeve with the axle to axially position the transition sleeve relative to the axle.
The shaft-mounted brake disc is sleeved on the transition sleeve and is connected with the transition sleeve through a fastening connecting piece.
The brake caliper comprises a pair of caliper bodies, and brake pads are respectively arranged at one ends of the pair of caliper bodies, which point to the transition sleeve.
Wherein, the brake lining is a powder metallurgy brake lining.
Wherein, the braking clamp is arranged on the braking hanging seat.
The positioning mechanism comprises a circle of first grooves arranged on the inner periphery of the transition sleeve, a circle of second grooves matched with the first grooves and arranged on the outer periphery of the axle, positioning spaces are formed between the first grooves and the second grooves relatively, and positioning balls are arranged in the positioning spaces.
And the transition sleeve is provided with a mounting hole communicated with the first groove on the upper surface of the first groove.
The axle is in spline fit connection with the transition sleeve through an inner sleeve; the inner skleeve includes two, and the cover is established respectively on the axletree, and divide and locate the both sides of transition cover, the one end of inner skleeve extends into in the transition cover, with the transition cover passes through spline fit connects.
Wherein, the inner sleeve is connected with the axle through a sliding bearing.
The number of the shaft-mounted brake discs is three, and the three shaft-mounted brake discs are uniformly distributed on the transition sleeve.
(III) advantageous effects
Compared with the prior art, the invention has the following advantages:
the invention provides a shaft-mounted braking device for a track-variable wheel pair, which comprises a transition sleeve, a positioning mechanism and a plurality of shaft-mounted braking discs, wherein the shaft-mounted braking discs are fixed on the transition sleeve at intervals; when the track gauge is changed, the axle moves relative to the transition sleeve, so that the position of the axle-mounted brake disc is kept relatively unchanged, and the braking action of the track gauge-changed wheel pair under different track gauges is realized.
Drawings
FIG. 1 is an axial cross-sectional partial schematic view of an axle-mounted brake rigging for a variable gauge wheel set in accordance with the present invention;
in the figure: 1: an axle; 2: a brake disc is mounted by a shaft; 3: a positioning mechanism; 4: and (4) a transition sleeve.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.
In addition, in the description of the present invention, "a plurality", and "a plurality" mean two or more unless otherwise specified.
As shown in fig. 1, a shaft-mounted brake device for a track-variable wheel set provided in an embodiment of the present invention includes a transition sleeve 4, a positioning mechanism 3 and a plurality of shaft-mounted brake discs 2, the plurality of shaft-mounted brake discs 2 are fixed on the transition sleeve 4 at intervals to form an integrated structure, specifically, the shaft-mounted brake discs 2 are directly sleeved on the transition sleeve 4 and are connected with the transition sleeve 4 through fastening connecting members such as bolts, so that a trouble that the shaft-mounted brake discs 2 are first mounted on hubs and then are press-mounted on an axle 1 through the hubs is eliminated, the hubs are directly eliminated to make the integrated structure simpler and more compact, the transition sleeve 4 is connected with the axle 1 of the track-variable wheel set through spline fitting, so as to circumferentially position the transition sleeve 4 relative to the axle 1 and facilitate torque transmission, the positioning mechanism 3 is used for connecting the transition sleeve 4 with the axle 1, so as to axially position the transition sleeve 4 relative to the axle 1, when the track gauge needs to be changed, the axle 1 can move relative to the transition sleeve 4, so that the position of the transition sleeve 4 is unchanged, the position of the axle-mounted brake disc 2 is further kept unchanged, and the braking action of the track gauge-changed wheel pair under different track gauges is realized.
Further, still include with the braking clamp of axle dress brake disc 2 one-to-one, the braking clamp is installed on the braking hanging seat of bogie frame curb girder, the braking clamp includes a pair of clamp body, and is a pair of clamp body is directional the one end of transition cover 4 is equipped with the brake lining respectively, and in order to guarantee that the brake lining has sufficient wearability, the brake lining chooses the powder metallurgy brake lining for use, and when carrying out the braking, the brake lining on the clamp body is held shaft dress brake disc 2 tightly from the quotation both sides of axle dress brake disc 2, realizes the braking.
In the embodiment of the invention, the positioning mechanism 3 comprises a circle of first grooves arranged on the inner periphery of the transition sleeve 4 and a circle of second grooves arranged on the outer periphery of the axle 1 and matched with the first grooves, the first grooves and the second grooves are opposite to each other to form a positioning space, the cross sections of the first grooves and the second grooves are semicircular, positioning rings with circular cross sections are formed after the first grooves and the second grooves are connected with each other, positioning balls are arranged in the positioning spaces, and the positioning balls are clamped in the first grooves and the second grooves to realize the axial positioning of the transition sleeve 4 and the axle 1; the positioning balls are preferably distributed over the whole positioning ring to ensure stable structure.
The transition sleeve 4 is provided with a mounting hole on the upper surface of the first groove, and the mounting hole is communicated with the first groove, so that positioning balls can be conveniently thrown into the positioning space from the mounting hole.
Specifically, the axle 1 is in spline fit connection with the transition sleeve 4 through an inner sleeve; the inner sleeves are respectively sleeved on the axle 1 and are respectively arranged on two sides of the transition sleeve 4, one end of each inner sleeve extends into the transition sleeve 4, namely one end of each inner sleeve extends into a space between the transition sleeve 4 and the axle 1 and is in matched connection with the transition sleeve 4 through the spline, further, the inner wall of the transition sleeve 4 is provided with an inner spline, the outer wall of each inner sleeve is provided with an outer spline, the outer splines of each inner sleeve are in matched connection with the inner splines of the transition sleeve 4, therefore, the inner sleeves can transmit the torque of the axle 1 to the transition sleeves 4 and rotate together, wheels are pressed on the outer wall of the other ends of the inner sleeves, and the inner sleeves are connected with the axle 1 through sliding bearings; when the track gauge is changed, the inner sleeve drives the wheel to move along the axle 1 under the action of the sliding bearing, at the moment, the inner sleeve moves relative to the transition sleeve 4 to realize the track gauge change of the wheel, and the position of the transition sleeve 4 is kept unchanged at the moment, namely the position of the axle-mounted brake disc 2 is unchanged, so that the axle-mounted brake disc 2 and the brake clamp are kept relatively fixed, the braking action under different track gauges is realized, and the structure is simple and compact and is convenient to implement.
In the embodiment of the present invention, preferably, the number of the shaft-mounted brake discs 2 is three, and the three shaft-mounted brake discs 2 are uniformly distributed on the transition sleeve 4, and of course, the number of the shaft-mounted brake discs 2 can be increased or decreased according to actual needs.
The embodiment shows that the invention has simple and compact structure and convenient implementation, and can keep the relative position of the brake clamp and the shaft-mounted brake disc unchanged when the track gauge is changed, thereby realizing the braking action under different track gauges.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. The axle-mounted brake device for the track-variable wheel pair is characterized by comprising a transition sleeve, a positioning mechanism and a plurality of axle-mounted brake discs, wherein the axle-mounted brake discs are fixed on the transition sleeve at intervals; the axle is in spline fit connection with the transition sleeve through an inner sleeve; the inner sleeves are respectively sleeved on the axle and are respectively arranged on two sides of the transition sleeve, one end of each inner sleeve extends into the transition sleeve and is connected with the transition sleeve in a matched mode through the splines.
2. The axle-mounted brake device for a variable-gauge wheel pair according to claim 1, wherein the axle-mounted brake disc is sleeved on the transition sleeve and connected with the transition sleeve through a fastening connecting piece.
3. The axle-mounted brake device for a pair of variable-gauge wheels according to claim 1, further comprising brake calipers corresponding one-to-one to the axle-mounted brake disks, the brake calipers including a pair of caliper bodies, one ends of the pair of caliper bodies directed toward the transition sleeve being respectively provided with brake pads.
4. A shaft mounted brake rigging for a variable gauge wheel pair according to claim 3, wherein said brake pads are powder metallurgy brake pads.
5. A shaft mounted brake rigging for a variable gauge wheel pair according to claim 3, wherein said brake caliper is mounted on a brake spider.
6. The axle-mounted brake rigging for a pair of wheels having a variable gauge according to any one of claims 1 to 5, wherein said positioning means comprises a first groove formed in an inner periphery of said transition sleeve, a second groove formed in an outer periphery of said axle and matching with said first groove, said first groove and said second groove forming a positioning space therebetween, and a positioning ball is disposed in said positioning space.
7. The axle-mounted brake rigging for a variable-gauge wheel pair according to claim 6, wherein a mounting hole communicating with said first recess is provided in an upper surface of said transition sleeve located in said first recess.
8. The axle mounted brake rigging for a variable gauge wheel pair according to claim 1, wherein said inner sleeve is connected to said axle by a plain bearing.
9. The axle mounted brake rigging for a variable gauge wheel pair according to claim 1, wherein the number of said axle mounted brake discs is three, and three of said axle mounted brake discs are evenly distributed on said transition sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810333757.0A CN108407845B (en) | 2018-04-13 | 2018-04-13 | Shaft-mounted braking device for variable-gauge wheel pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810333757.0A CN108407845B (en) | 2018-04-13 | 2018-04-13 | Shaft-mounted braking device for variable-gauge wheel pair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108407845A CN108407845A (en) | 2018-08-17 |
| CN108407845B true CN108407845B (en) | 2020-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810333757.0A Active CN108407845B (en) | 2018-04-13 | 2018-04-13 | Shaft-mounted braking device for variable-gauge wheel pair |
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| Country | Link |
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| CN (1) | CN108407845B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2808024C1 (en) * | 2020-07-28 | 2023-11-22 | СиЭрЭрСи ЦИНДАО СЫФАН КО., ЛТД. | Axle for use with variable wheelset and variable wheelset |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109501831B (en) * | 2018-12-07 | 2024-04-26 | 中国铁道科学研究院集团有限公司 | Rail-changing device for brake clamp |
| CN111845837B (en) * | 2019-04-29 | 2024-09-20 | 常州中车铁马科技实业有限公司 | Brake caliper device, variable gauge bogie and rail vehicle |
| CN110789950B (en) * | 2019-12-05 | 2021-05-11 | 潍坊潍达信息科技有限公司 | Auxiliary guide rail transition mechanism |
| CN111806495B (en) * | 2020-07-28 | 2021-08-24 | 中车青岛四方机车车辆股份有限公司 | Variable gauge wheel pair and railway vehicle |
| CN111806500B (en) * | 2020-07-28 | 2022-02-15 | 中车青岛四方机车车辆股份有限公司 | Axle for track-gauge-variable wheel set and track-gauge-variable wheel set |
| CN111806502B (en) * | 2020-07-28 | 2022-02-15 | 中车青岛四方机车车辆股份有限公司 | Wheel mounting shaft sleeve for track-variable wheel set and track-variable wheel set |
| CN114147440B (en) * | 2021-11-10 | 2024-03-26 | 中车长江运输设备集团有限公司 | Wheel set dismounting device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD284649A5 (en) * | 1989-06-06 | 1990-11-21 | Deutsche Reichsbahn,Wtz, Zetrum Wagenentwicklung Und Werkstaettentechnik,Dd | DEVICE FOR MOLECULARLY CONTROLLING A COMBINED BUTTON AND DISC BRAKE |
| DE4405861C2 (en) * | 1993-03-03 | 2002-11-14 | Pkp Ts B K Poznan | Wheel set with sliding wheels |
| DK0905002T3 (en) * | 1997-09-26 | 2002-12-30 | Sab Wabco Bsi Verkehrstechnik | Rail vehicle braking device |
| CN204368171U (en) * | 2014-11-20 | 2015-06-03 | 长春轨道客车股份有限公司 | A kind of meter-gage reel braking motor car bogie wheel is to composition |
| CN106915361B (en) * | 2017-03-21 | 2019-04-12 | 中车山东机车车辆有限公司 | A kind of dress gauge-changeable bogie of adjustable unit brake apparatus |
| CN107628059B (en) * | 2017-09-01 | 2023-05-26 | 中车唐山机车车辆有限公司 | Braking device applied to variable-track-gauge bogie |
-
2018
- 2018-04-13 CN CN201810333757.0A patent/CN108407845B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2808024C1 (en) * | 2020-07-28 | 2023-11-22 | СиЭрЭрСи ЦИНДАО СЫФАН КО., ЛТД. | Axle for use with variable wheelset and variable wheelset |
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| Publication number | Publication date |
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| CN108407845A (en) | 2018-08-17 |
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