CN201287589Y - Independent wheel set for rail traffic vehicle - Google Patents
Independent wheel set for rail traffic vehicle Download PDFInfo
- Publication number
- CN201287589Y CN201287589Y CNU2008200145299U CN200820014529U CN201287589Y CN 201287589 Y CN201287589 Y CN 201287589Y CN U2008200145299 U CNU2008200145299 U CN U2008200145299U CN 200820014529 U CN200820014529 U CN 200820014529U CN 201287589 Y CN201287589 Y CN 201287589Y
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- wheel
- axle
- wheels
- independent
- rail traffic
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Abstract
An independent wheel group for rail transit vehicles is equipped with two wheels capable of rotating independently, which is characterized in that a left wheel and a right wheel are supported on end axles of a U-shaped axle bridge and respectively rotate around the end axles of the axle bridge independently, thereby removing restriction of the conventional wheel group to the left wheel and the right wheel via an axle, further, the wheels are elastic wheels, and the outside of each wheel is equipped with a brake shaft for mounting a brake disc. Compared with the conventional wheel, the independent wheel group has the advantages that the U-shaped axle bridge structure reduces the central height of the axle, which is favorable for low-floor urban rail transit vehicles to reduce requirements upon the height of the floor, the left wheel and the right wheel rotate around the axle ends of the axle bridge independently, thereby removing the restriction of the conventional wheel to the left wheel and the right wheel via the axle, which is favorable for vehicle curve negotiation property, the wheels utilize the structure of elastic wheels, which are favorable for reducing noise of urban rail transit vehicles, the brake disc is mounted on the brake shaft outside each of the wheels, thereby not only guaranteeing loading the brake force to the wheel, preserving enough space at the internal of the wheel for low-floor, but also reducing impact, vibration and noise between rails, and simultaneously realizing more convenient detachment, replacement and maintenance and safe operation.
Description
Technical field
The utility model relates to the independent wheels new construction that two wheels can independently rotate about a kind of low floor rail traffic vehicles usefulness, belongs to the rail traffic vehicles technical field.
Background technology
Since railway began to put into effect, nearly all rail vehicles adopted all that fixedly to be fitted in the wheel on the axletree by two wheels right.For guaranteeing vehicle smoothly by curve, the tread rolling circle radius is that ecto-entad increases progressively on the wheel tread.The synchronous rotation of two wheels on the same in addition axle of the irregularity of circuit produces hunting when having caused wheel to operation on straight line.And on curve when operation since wheel on the synchronous rotation of two wheels, unequal in the up distance of walking of interior outer rail, only depend on the tread rolling circle of wheel different radii not remedy fully, therefore between wheel track, produce very big slip, thereby aggravated abrasion and noise between the wheel track.The effective way that addresses the above problem is with two wheel decoupling zeros, makes them can distinguish independent rotation.Two wheels can be mutually rotate, have the wheel of relative motion to being called independent wheels between the wheel shaft around axletree independently of one another about on this same axis.
Along with the purpose of European countries for the protection environment; and solve the problem of urban traffic congestion, begin to greatly develop urban track traffic, for making things convenient for passenger's boarding; a problem that needs to be resolved hurrily is exactly how to dwindle the floor of vehicle and the distance of rail level as much as possible.Less than 400mm, adopt monolithic wheel almost is impossible to bogie truck to the floor that wants to make place, car load passageway apart from rail level.So people have expected adopting the bogie truck of independent wheel group structure naturally, and beginning recognizes that progressively low-floor light rail vehicle adopts the preceence and the essentiality of independent wheel group structure bogie truck.In recent years, adopt the part low floor of independent wheel group structure bogie truck and through full low-floor light rail vehicle to obtain development rapidly.
Summary of the invention
The purpose of this utility model is: be rail traffic vehicles, particularly the low floor urban rail transit vehicles provides a kind of independent wheel group structure that is suitable for the low floor bogie truck.This independent wheels new construction can satisfy the requirement that the low floor city railway vehicle reduces height of floor from rail top, can improve the curve passing through through performance again, reduces impact, vibration and noise between wheel track, opens and inspect simultaneously that repair and replacement are convenient, application safety is reliable.
This rail traffic vehicles is with independent wheel group structure: on the horizontal ends axle of U profile shaft bridge, lateral wheel is provided with the brake axle that brake disc can be installed to two wheels by bearings about independent rotation.
Described axle bridge is a U type structure, and its two end axles is connected to L type inblock cast structure, and the centre is the welding box-shaped structure of steel plate, and weldering was one after the end axle inserted the axle connecting bore.Two wheels are pressed the compound type elastic wheel for cutting about described, see patent application for details and " cut and press the compound type elastic wheel ", and its application number is 2008200136209.The described brake axle that is used to install brake disc is bolted to by locating dowel pin and brake disc cuts the core wheel outside of pressing the compound type elastic wheel.Inboard tapered roller bearing of core wheel and oil-sealing sleeve thereof are contained on the horizontal ends axle of U profile shaft bridge, by bolt of bearing cap bearing cap shim are fixed on the wheel inboard; Core wheel outside tapered roller bearing and adjusting pad thereof are sleeved on the horizontal ends axle of U profile shaft bridge, and by dog bolt gland are fixed.
Traditional wheel is the two ends that two wheels are cemented in an axletree to structure, two wheels are with identical rotating speed rotation, and independent wheels new construction, its wheel assembles up by tapered roller bearing with the axle bridge, its axis bridge does not rotate, about two wheels separately relatively an axle bridge independently rotate.Therefore the axle bridge can be designed to U type structure, for the low floor car body is abdicated requisite space; Simultaneously, when wheel when the curve, left and right wheels each with the different rotating speeds rotation, can not produce to by curve the time and vertically trackslip, so can improve curving performance at wheel.To be better than the tradition wheel aspect the wheel-rail wear right reducing for the independent wheels of this new structure, and particularly by sharp radius curve the time, this advantage is just more outstanding.
Independent wheels new construction of the present utility model, be about two wheels by bearings on U profile shaft bridge, and independently rotate around the end axle of axle bridge separately, and an axle bridge itself does not rotate, removed traditional wheel to about two wheels retrain mutually by axletree; Wheel adopts elastic wheel; Wheel disposed outside brake axle is used to install brake disc.
The axle bridge of the utility model independence wheels new construction is a U type structure, and its two end axles is connected to L type integral cast steel structure, is welded as a whole behind its vertical plane centre hole installation end axle, forms the box-structure welding by steel plate between two axle connection horizontal surfaces and is connected as a single entity.Whole processing behind the axle bridge assembly welding, concentric to guarantee two end axles, be used to support the both sides independent wheel.The two end axles of axle bridge connects both sides and has arranged that altogether four one is spring mounting seat.
Two independent wheels are supported on the end axle at U profile shaft bridge two ends by the two cover tapered roller bearings of the outside in the core wheel respectively about the utility model independence wheels new construction, and two wheels independently rotate around the end axle of axle bridge separately about making.The location of core wheel inboard bearing and float setting are realized by bearing cap shim and oil sealing, by changing the oil sealing axial dimension, are the both sides wheel alignment, guarantee between two wheels inboard apart from meeting design requirement; The location of core wheel outer bearing and float setting are realized by gland and adjusting pad.
The brake axle of the utility model independence wheels new construction is fixed on outside the core wheel of elastic wheel by locating dowel pin and brake disc bolted connection, and itself and wheel are rotated jointly, and brake disc is installed on brake axle, guarantees that brake-force transmission is to wheel.
Take turns comparing with tradition, the advantage of independent wheels new construction is: U profile shaft bridge construction has reduced the axle center height, helps the low floor city railway vehicle and reduces height of floor from rail top; About two wheels independently rotate around the end axle of axle bridge separately, removed traditional wheel to about the mutual constraint of two wheels by axletree, help the curve passing through through performance; Wheel adopts the elastic wheel structure, helps the city railway vehicle vibration and noise reducing; The outside brake disc of installing of wheel had both guaranteed that braking force was loaded on the wheel, was that low floor has been reserved enough spaces at inside wheel again.This independent wheels new construction had both satisfied the requirement that the low floor city railway vehicle reduces height of floor from rail top, can improve the curve passing through through performance again, reduced impact between wheel track, vibration and noise, opened and inspect simultaneously that repair and replacement are convenient, application safety is reliable.
The bogie truck that independent wheels new construction is installed has following characteristics:
(1) eliminates hunting, vehicle is no longer included crawl this problem of critical speed;
(2) significantly reduce abrasion and noise between the wheel track, particularly wheeling edge wearing and noise greatly reduce on sharp radius curve;
(3) horizontal force between the minimizing wheel track particularly is reduced in the section of track power on the sharp radius curve.
Description of drawings
Fig. 1 is the utility model rail traffic vehicles with independent wheel group structure scheme drawing.
The specific embodiment
Now 1 the utility model is described in further detail in conjunction with the accompanying drawings: passive axle bridge 12 is connected by horizontal ends axle, axle and box connecting panel assembly welding forms in independent wheels, inboard tapered roller bearing 8 inner rings of bearing cap shim 10, oil sealing 11 and core wheel are installed on its two side ends axle, by changing oil sealing 11 axial dimensions, be wheel alignment, and inboard tapered roller bearing 8 play of adjustment core wheel, guarantee between two wheels inboard simultaneously apart from meeting design requirement, elastic wheel 7 independent assemblings are finished, and the inboard tapered roller bearing of core wheel 8 outer rings are installed on elastic wheel 7 core wheel inboards.Adjusting pad 5 and tapered roller bearing 4 outer rings, the core wheel outside are installed on the elastic wheel 7 core wheels outside, by changing adjusting pad 5 axial dimensions, are tapered roller bearing 4 location, the core wheel outside; Core wheel outside tapered roller bearing 4 inner rings and gland 3 are installed, and fixing with dog bolt 2, by changing gland 3 axial dimensions, adjust core wheel outside tapered roller bearing 4 play.With locating dowel pin 13 and brake disc bolt 6 with brake axle 1 location and installation in the elastic wheel 7 core wheels outside, with bolt of bearing cap 9 bearing cap shim 10 is fixed on elastic wheel 7 core wheel inboards, before brake axle 1 and bearing cap shim 10 are installed, be coated with grease in the tapered roller bearing 4,8 of the outside respectively in core wheel, outside tapered roller bearing 4,8 lubricates and needs in the assurance core wheel.
Claims (5)
1 one kinds of independent wheels of rail traffic vehicles is characterized in that: two wheels (7) are supported on the horizontal ends axle of U profile shaft bridge (12) by bearing (4,8) about independent rotation, and wheel (7) outside is provided with the brake axle (1) that brake disc can be installed.
The independent wheels of 2 rail traffic vehicles according to claim 1, it is characterized in that: described axle bridge (12) is U type structure, its two end axles is connected to L type integral cast steel structure, and the centre is the welding box-shaped structure of steel plate, and weldering was one after the end axle inserted the axle connecting bore.
The independent wheels of 3 rail traffic vehicles according to claim 1 is characterized in that: two wheels (7) are pressed the compound type elastic wheel for cutting about described.
The independent wheels of 4 rail traffic vehicles according to claim 3 is characterized in that: the described brake axle (1) that is used to install brake disc is fixed on by locating dowel pin (13) and brake disc bolt (6) cuts the core wheel outside of pressing compound type elastic wheel (7).
The independent wheels of 5 rail traffic vehicles according to claim 3, it is characterized in that: inboard tapered roller bearing (8) of core wheel and oil sealing (11) thereof are sleeved on the horizontal ends axle of U profile shaft bridge (12), by bolt of bearing cap (9) bearing cap shim (10) are fixed on and cut the inboard of pressing compound type elastic wheel (7); Core wheel outside tapered roller bearing (4) and adjusting pad (5) thereof are sleeved on the horizontal ends axle of U profile shaft bridge (12), and by dog bolt (2) that gland (3) is fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200145299U CN201287589Y (en) | 2008-07-30 | 2008-07-30 | Independent wheel set for rail traffic vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200145299U CN201287589Y (en) | 2008-07-30 | 2008-07-30 | Independent wheel set for rail traffic vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201287589Y true CN201287589Y (en) | 2009-08-12 |
Family
ID=40979261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200145299U Expired - Fee Related CN201287589Y (en) | 2008-07-30 | 2008-07-30 | Independent wheel set for rail traffic vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201287589Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105197047A (en) * | 2015-09-30 | 2015-12-30 | 南车南京浦镇车辆有限公司 | Rubber tire low-floor bogie |
| CN105216548A (en) * | 2015-09-30 | 2016-01-06 | 南车南京浦镇车辆有限公司 | A kind of rubber wheel drive wheel pair |
| CN106915356A (en) * | 2017-03-08 | 2017-07-04 | 中车青岛四方机车车辆股份有限公司 | Vehicle guidance device and the vehicle with it |
| CN107719012A (en) * | 2017-10-31 | 2018-02-23 | 中车资阳机车有限公司 | A kind of overhead rail vehicle running gear |
| CN109219527A (en) * | 2016-03-17 | 2019-01-15 | 马钢-瓦顿公司 | Rail vehicle wheel and corresponding production method |
| CN109532918A (en) * | 2019-01-02 | 2019-03-29 | 中车株洲电力机车有限公司 | A kind of axis bridge system and low-floor tramcar |
| CN110962502A (en) * | 2018-09-29 | 2020-04-07 | 中车戚墅堰机车车辆工艺研究所有限公司 | Elastic wheel for railway vehicle, use method of elastic wheel and independent wheel pair |
| CN112678012A (en) * | 2021-01-07 | 2021-04-20 | 中车青岛四方机车车辆股份有限公司 | Bogie axle bridge, wheel shaft system and bogie |
| CN114754655A (en) * | 2022-04-25 | 2022-07-15 | 中车青岛四方机车车辆股份有限公司 | Wheel bearing clearance measuring device and method |
-
2008
- 2008-07-30 CN CNU2008200145299U patent/CN201287589Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105197047A (en) * | 2015-09-30 | 2015-12-30 | 南车南京浦镇车辆有限公司 | Rubber tire low-floor bogie |
| CN105216548A (en) * | 2015-09-30 | 2016-01-06 | 南车南京浦镇车辆有限公司 | A kind of rubber wheel drive wheel pair |
| CN109219527A (en) * | 2016-03-17 | 2019-01-15 | 马钢-瓦顿公司 | Rail vehicle wheel and corresponding production method |
| CN106915356A (en) * | 2017-03-08 | 2017-07-04 | 中车青岛四方机车车辆股份有限公司 | Vehicle guidance device and the vehicle with it |
| CN107719012A (en) * | 2017-10-31 | 2018-02-23 | 中车资阳机车有限公司 | A kind of overhead rail vehicle running gear |
| CN110962502A (en) * | 2018-09-29 | 2020-04-07 | 中车戚墅堰机车车辆工艺研究所有限公司 | Elastic wheel for railway vehicle, use method of elastic wheel and independent wheel pair |
| CN110962502B (en) * | 2018-09-29 | 2024-03-05 | 常州中车铁马科技实业有限公司 | Elastic wheel for railway vehicle, use method of elastic wheel and independent wheel set |
| CN109532918A (en) * | 2019-01-02 | 2019-03-29 | 中车株洲电力机车有限公司 | A kind of axis bridge system and low-floor tramcar |
| CN112678012A (en) * | 2021-01-07 | 2021-04-20 | 中车青岛四方机车车辆股份有限公司 | Bogie axle bridge, wheel shaft system and bogie |
| CN114754655A (en) * | 2022-04-25 | 2022-07-15 | 中车青岛四方机车车辆股份有限公司 | Wheel bearing clearance measuring device and method |
| CN114754655B (en) * | 2022-04-25 | 2024-04-02 | 中车青岛四方机车车辆股份有限公司 | Wheel bearing play measuring device and method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090812 Termination date: 20170730 |