CN109017855A - Multiple degrees of freedom independently rotating wheel - Google Patents
Multiple degrees of freedom independently rotating wheel Download PDFInfo
- Publication number
- CN109017855A CN109017855A CN201810913965.8A CN201810913965A CN109017855A CN 109017855 A CN109017855 A CN 109017855A CN 201810913965 A CN201810913965 A CN 201810913965A CN 109017855 A CN109017855 A CN 109017855A
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- CN
- China
- Prior art keywords
- wheel
- wheel shell
- shell
- external
- inner wheel
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/38—Arrangements or devices for adjusting or allowing self- adjustment of wheel axles or bogies when rounding curves, e.g. sliding axles, swinging axles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The present invention provides a kind of multiple degrees of freedom independently rotating wheels, belong to light rail vehicle technical field.Independently rotating wheel is due to no public axle, thus it is poor in curve orientation, eventually leads to the serious problem of the abrasion of wheel.Connection is installed by the bearing 5 of axis horizontal between wheel 8 and inner wheel shell 4 of the invention, it is connected between inner wheel shell 4 and external wheel shell 3 by the installation of axis vertical direction, inner wheel shell 4 is installed on inside external wheel shell 3 by top revolving support 2 and lower part revolving support 7, tapered roller bearing 6 crosses the installation connection of axis vertical direction, wheel and inner wheel shell 4 keeping parallelism in the horizontal plane, opposite face is plane between inner wheel shell 4 and external wheel shell 3.It is mainly used for light rail vehicle.
Description
Technical field
The invention belongs to light rail vehicle technical fields, the in particular to car wheel structure of low-floor rail vehicle.
Technical background
With the fast development in city, the trip that original urban public transport system has increasingly been unable to satisfy people is needed
It asks, urban track traffic can produce huge economic and social benefit because its freight volume is big, efficiently punctual, Environmental Safety, and become
The primary selection of the world each main cities public transport field development.But currently, research of the China in low-floor field is more stagnant
Afterwards, only low-floor light rail vehicle has been opened in urban, and is all importing technology.
The main distinction of the service condition of urban rail transit vehicles compared with traditional railway is exactly urban rail transit line
Road sweep is small, and curve is more, it is desirable that the speed of service it is not high, but passenger getting on/off must be efficient and convenient.Vehicle low-floor
It is the important development direction of current city rail vehicle development, it is more mature in development abroad.Independently rotating wheel is not due to having public affairs
The floor level of vehicle can be effectively reduced in axle altogether, greatly improves the speed and convenience of passenger getting on/off, eliminates simultaneously
The hunting of conventional bogie, and left and right wheels can respectively drive make it through curve performance it is more preferable, thus in city
There is apparent advantage in rail traffic.Due to no public axle, the guiding performance of independently rotating wheel is poor: table on straight line
It is now poor for centring property, show as that steering behaviour is poor on curve, the abrasion for eventually leading to wheel are serious.Radially adjustable it is only
Under the conditions of vertical swivel wheel can pass through the effect of radiai adjustment mechanism while meet linear running stability and city rail
The requirement of sharp radius curve passage capacity.
Summary of the invention
The object of the present invention is to provide a kind of multiple degrees of freedom wheels, it can be efficiently solved around wheel horizontal middle spindle
The problem of vertical axis of (i.e. axle) and wheel center rotates, the rotation on the one hand meeting wheel drive vehicle to advance, on the other hand
Wheel can be convenient for wheel to route curve radiai adjustment around itself vertical axis rotation, meet the requirement that sharp radius curve passes through.
The purpose of the present invention is realized by following design scheme, and traditional axle box and wheel are divided into three main portions
Point: wheel, inner wheel shell and external wheel shell.It is installed and is connected by the bearing of axis horizontal between wheel and inner wheel shell
Connect, connected between inner wheel shell and external wheel shell by the installation of axis vertical direction, external wheel shell by mounting base with
Framework connection, inner wheel shell are installed on inside external wheel shell by top revolving support and lower part revolving support, internal vehicle
It is equipped with tapered roller bearing between wheel shell and external wheel shell, crosses the installation connection of axis vertical direction, wheel and inner wheel shell
Keeping parallelism in the horizontal plane, opposite face is plane, two tapered roller bearings between inner wheel shell and external wheel shell
Reversely to install.Driving motor is located at left side, and output passes through link mechanism tooth connection roller box.Wheel and inner wheel shell are in water
Keeping parallelism in plane allows wheel to carry out rotary rolling advance around its horizontal middle spindle by bearing.Inner wheel shell with
It is connected between external wheel shell by the installation in axis vertical direction, allows inner wheel shell around vertical axes and external wheel shell
Mutually revolution.But since the installation gap between inner wheel shell and external wheel shell limits, inner wheel shell can only be around perpendicular
One smaller angle of d-axis bidirectional rotation is just contacted with external wheel, this is its rotary spacing function.Wheel can use
The compound elastic rubber wheel of compression shear makes it constitute suspension system of three systems together with the single stage suspension of bogie, secondary suspension
System can reduce unsprung mass, mitigates wheel-rail impact vibration, abrasion and running noises, improves riding comfort.
The present invention compared with prior art the advantages of and effect: it can be around wheel horizontal middle spindle (i.e. axle) and wheel
The multiple degrees of freedom wheel of the vertical axis rotation in center, the rotation on the one hand meeting wheel drive vehicle to advance, and another aspect wheel can
To rotate around itself vertical axis, traditional independently rotating wheel is mostly using the structure similar with conventional wheel, and only wheel is more
One freedom degree rotated freely around axle, the wheel that the present invention designs not only have this freedom degree, and there are also the same as interior wheel shell
The freedom degree of vertical rotation together, the minimum radius curve being more conducive on urban tram route passes through and wheel
The realization of radiai adjustment function.
Detailed description of the invention
Fig. 1 is structure of the invention schematic diagram.
Fig. 2 is the physical model Section View of the program.
Fig. 3 is that wheel assembles rear front view.
Fig. 4 is top view after wheel assembly.
Specific embodiment
The present invention is described further with reference to the accompanying drawing,
External wheel shell 3 is connect by mounting base 10 with framework, vertical to realize single stage suspension, suspension peace using rubber spring
Dress seat 10 can modify according to specific hang, external wheel shell 3 be framed in horizontal and vertical no relative motion.It is internal
Wheel shell 4 is installed on inside external wheel shell 3 by top revolving support 2 and lower part revolving support 7, and is wheel 8 around axle
Independent rotational movement provides installation site.It is rolled between inner wheel shell 4 and external wheel shell 3 by the circular cone in axis vertical direction
The sub- installation of bearing 6 connection, rotates inner wheel shell 4 in the horizontal plane around external wheel shell 3.Wheel 8 and inner wheel
Connection is installed by the tapered roller bearing 5 of axis horizontal between shell 4, wheel is allow to exist by bearing 5 around inner wheel shell 4
Rotation, realizes moving forward and backward for vehicle in perpendicular.Two tapered roller bearings 5 are reversed installation, realize wheel 8 with it is interior
The horizontal location and fixation of portion's wheel shell 4.Wheel 8 uses compression shear Compound rubber elastic wheel, with a system, secondary suspension
May make up three together is suspension, reduces unsprung mass, to reduce wheel-rail impact vibration, running noises and wheel track
Abrasion, can be effectively improved vehicle runnability and vehicle riding comfort.
Due to wheel 8 and inner wheel shell 4 keeping parallelism in the horizontal plane, and then pass through inner wheel shell 4 and external vehicle
Rotation between wheel shell 3 realizes wheel 8 around the rotation of vertical axes, can so pass through the horizontal rotation reality of wheel 8
Existing radiai adjustment to and contact of a curve, realize curve negotiating.
Because carrying out only needing a smaller radial rotary angle, thus the inner wheel of this programme when radiai adjustment
Opposite face is plane between shell 4 and external wheel shell 3, and inner wheel shell 4 can only be smaller around vertical axes bidirectional rotation one
Angle just contacted with external wheel shell 3, this be its rotary spacing function.The maximum radial for needing to realize, which adjusts angle, to be led to
It crosses and changes gap size between inside and outside wheel shell to realize.It can be close by rubber type between wheel 8 and inner wheel shell 4
Envelope or labyrinth sealing carry out the lubrication of bearing.The outside of wheel end cap 11 and wheel 8 consolidates.
Of the invention is an independent car wheel structure, the inner wheel shell needs of its left and right wheels when being installed on bogie
It is directly or indirectly coupled together by connecting rod and is just able to achieve the wheel group guide function of independently rotating wheel.Driving motor 1 is located at a left side
Side, output is by link mechanism tooth connection roller box 9, if the then unpowered input herein of non-powered bogie.
Claims (3)
1. a kind of multiple degrees of freedom independently rotating wheel, including wheel (8), inner wheel shell (4) and external wheel shell (3), special
Sign is: installing connection, inner wheel shell (4) by the bearing (5) of axis horizontal between wheel (8) and inner wheel shell (4)
Tapered roller bearing (6) between external wheel shell (3) through axis vertical direction installs connection, and external wheel shell (3) is logical
It crosses mounting base (10) to connect with framework, inner wheel shell (4) is installed by top revolving support (2) and lower part revolving support (7)
It is internal in external wheel shell (3), tapered roller bearing (6) are equipped between inner wheel shell (4) and external wheel shell (3), cross axis
The installation connection of line vertical direction, wheel (8) and inner wheel shell (4) keeping parallelism in the horizontal plane, inner wheel shell (4) and outer
Opposite face is plane between portion's wheel shell (3).
2. a kind of multiple degrees of freedom independently rotating wheel according to claim 1, it is characterised in that: two tapered roller bearings
It (5) is reversed installation.
3. a kind of multiple degrees of freedom independently rotating wheel according to claim 1, it is characterised in that: driving motor (1) is located at
Left side, output pass through link mechanism tooth connection roller box (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810913965.8A CN109017855A (en) | 2018-08-10 | 2018-08-10 | Multiple degrees of freedom independently rotating wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810913965.8A CN109017855A (en) | 2018-08-10 | 2018-08-10 | Multiple degrees of freedom independently rotating wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109017855A true CN109017855A (en) | 2018-12-18 |
Family
ID=64633798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810913965.8A Withdrawn CN109017855A (en) | 2018-08-10 | 2018-08-10 | Multiple degrees of freedom independently rotating wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109017855A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2887695Y (en) * | 2006-05-19 | 2007-04-11 | 中国北车集团唐山机车车辆厂 | Low floor light railway train independent rotary wheel bogie |
| JP2009173225A (en) * | 2008-01-28 | 2009-08-06 | Univ Of Tokyo | Wheel unit, truck, railroad vehicle, and railroad system |
| CN103158432A (en) * | 2013-03-27 | 2013-06-19 | 西南交通大学 | Independent rotating wheel with multiple degrees of freedom |
| CN203126374U (en) * | 2013-03-27 | 2013-08-14 | 西南交通大学 | Multi-degree of freedom independent rotary wheel |
-
2018
- 2018-08-10 CN CN201810913965.8A patent/CN109017855A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2887695Y (en) * | 2006-05-19 | 2007-04-11 | 中国北车集团唐山机车车辆厂 | Low floor light railway train independent rotary wheel bogie |
| JP2009173225A (en) * | 2008-01-28 | 2009-08-06 | Univ Of Tokyo | Wheel unit, truck, railroad vehicle, and railroad system |
| CN103158432A (en) * | 2013-03-27 | 2013-06-19 | 西南交通大学 | Independent rotating wheel with multiple degrees of freedom |
| CN203126374U (en) * | 2013-03-27 | 2013-08-14 | 西南交通大学 | Multi-degree of freedom independent rotary wheel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181218 |
|
| WW01 | Invention patent application withdrawn after publication |