CN203126374U - Multi-degree of freedom independent rotary wheel - Google Patents
Multi-degree of freedom independent rotary wheel Download PDFInfo
- Publication number
- CN203126374U CN203126374U CN 201320143788 CN201320143788U CN203126374U CN 203126374 U CN203126374 U CN 203126374U CN 201320143788 CN201320143788 CN 201320143788 CN 201320143788 U CN201320143788 U CN 201320143788U CN 203126374 U CN203126374 U CN 203126374U
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Abstract
The utility model provides a multi-degree of freedom independent rotary wheel, belongs to the technical field of light rail vehicles. An independent rotary wheel has the problem of severe abrasion due to poorer curve guide property as not being provided with a public axle. A wheel (8) and an interior wheel shell (4) of the multi-degree of freedom independent rotary wheel are connected by a bearing (5) with a horizontal axis in a mounting mode, the interior wheel shell (4) and an exterior wheel shell (3) are connected and mounted in vertical direction by an axis, the interior wheel shell (4) is arranged in the exterior wheel shell (3) through a rotary support (2) at the upper part and a rotary support (7) at the lower part, a conical roller bearing (6) is mounted and connected by passing the direction vertical to the axis, the wheel and the interior wheel shell (4) are kept parallel at a horizontal plane, and opposite planes between the interior wheel shell (4) and the exterior wheel shell (3) are planes. The multi-degree of freedom independent rotary wheel is mainly used in the light rail vehicles.
Description
Technical field
The utility model belongs to the light rail vehicle technical field, particularly the car wheel structure of low-floor rail vehicle.
Background technology
Fast development along with the city, original urban public transport system more and more can't satisfy people's trip requirements, urban track traffic is because of big, efficient punctual, the Environmental Safety of its freight volume, can produce huge economic and social benefit, and become the primary selection of each main cities public transport field development of the world.But at present, China comparatively lags behind in the research in low floor field, and only low-floor light rail vehicle has been opened in the part city, and is importing technology entirely.
The key distinction that the condition of service of urban rail transit vehicles is compared with traditional railway is exactly that the city rail traffic route radius of curve is little, and curve is many, and the running velocity of requirement is not high, but passenger getting on/off must be efficient and convenient.The vehicle low floorization is the important development direction of present city rail vehicle development, and development is comparatively ripe abroad.Independently rotating wheel is not owing to there is public axletree can effectively reduce the floor level of vehicle, improve speed and the convenience of passenger getting on/off greatly, eliminated the hunting of conventional bogie truck simultaneously, and it is better that left and right wheels can drive the performance that makes it pass through curve respectively, thereby remarkable advantages is arranged in urban track traffic.Owing to there is not public axletree, the guidance quality of independently rotating wheel is relatively poor: show as the centering poor performance at straight line, it is poor to show as turning efficiency at curve, finally causes the abrasion of wheel serious.But the independently rotating wheel of radiai adjustment can pass through performance requriements by the sharp radius curve that the effect of radiai adjustment mechanism is satisfied under linear running stability and the city rail condition simultaneously.
Summary of the invention
The purpose of this utility model provides a kind of multiple degree of freedom wheel, it can solve the problem around wheel horizontal middle spindle (being axletree) and the vertical axle rotation of wheel center effectively, the rotating band motor vehicle that satisfies wheel is advanced on the one hand, wheel can be convenient to wheel to the route curve radiai adjustment around self vertical axle rotation on the other hand, satisfies the requirement that sharp radius curve passes through.
The purpose of this utility model realizes by following design plan, and traditional axle box and wheel are divided into three main portions: wheel, inner wheel shell and outside wheel shell.Bearing by axis horizontal between wheel and the inner wheel shell is installed connection, be connected by the installation of axis vertical direction between inner wheel shell and the outside wheel shell, outside wheel shell is connected with framework by mount pad, inner wheel shell supports by the top revolution and bottom revolution support is installed on outside wheel shell inside, be provided with tapered roller bearing between inner wheel shell and the outside wheel shell, cross the axis normal direction connection is installed, wheel and inner wheel shell keeping parallelism on horizontal surface, face relative between inner wheel shell and the outside wheel shell is the plane, and two tapered roller bearings be reverse installation.Drive motor is positioned at the left side, and its output connects gear case by connecting rod mechanism.Wheel and inner wheel shell keeping parallelism on horizontal surface make wheel be rotated to roll around its horizontal middle spindle by bearing and advance.Installation by the axis vertical direction between inner wheel shell and the outside wheel shell is connected, and inner wheel shell can be turned round mutually around vertical axes and outside wheel shell.But because the restriction of the assemblage gap between inner wheel shell and the outside wheel shell, inner wheel shell can only just contact with outside wheel around smaller angle of the two-way rotation of vertical axes, and this is its rotary spacing function.Wheel can adopt compression shear compound type elastic caoutchouc wheel, and making its single stage suspension with bogie truck, secondary suspension constitute three is suspension, can reduce unsprung weight, alleviates wheel-rail impact vibration, abrasion and running noises, improves travelling comfort.
The utility model advantage and effect compared with prior art: it can be around the multiple degree of freedom wheel of wheel horizontal middle spindle (being axletree) and the vertical axle rotation of wheel center, the rotating band motor vehicle that satisfies wheel is advanced on the one hand, wheel can be around self vertical axle rotation on the other hand, mostly traditional independently rotating wheel is to adopt and the similar structure of conventional wheel, just wheel is many degree of freedom that rotates freely around axletree, the wheel of the utility model design not only has this degree of freedom, also have with the interior wheel shell degree of freedom of vertical rotation together, the minimum radius curve that is conducive to more on the city railroad trolley line passes through, and the realization of wheel radiai adjustment function.
Description of drawings
Fig. 1 is the utility model structure principle chart.
Fig. 2 is the solid model Section View of this scheme.
Fig. 3 is wheel assembling back front elevation.
Fig. 4 is wheel assembling back birds-eye view.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further,
Outside wheel shell 3 is connected with framework by mount pad 10, and vertical employing rubber spring is realized single stage suspension, hangs mount pad 10 and can make amendment according to concrete hang, and outside wheel shell 3 and framework are in horizontal and vertical no relative motion.Inner wheel shell 4 supports 7 by top revolution support 2 and bottom revolution and is installed on outside wheel shell 3 inside, and provides the installation site for wheel 8 independently rotatablely moves around axletree.Tapered roller bearing 6 installations by the axis vertical direction between inner wheel shell 4 and the outside wheel shell 3 are connected, and inner wheel shell 4 can be rotated at horizontal surface around outside wheel shell 3.Tapered roller bearing 5 by axis horizontal between wheel 8 and the inner wheel shell 4 is installed connection, and wheel can be rotated in perpendicular around inner wheel shell 4 by bearing 5, realizes moving forward and backward of vehicle.Two tapered roller bearings 5 are oppositely to install, and realize that the horizontal location of wheel 8 and inner wheel shell 4 is with fixing.Wheel 8 adopts compression shear compound type rubber elastic wheels, with one be, can to constitute three be suspension to secondary suspension, reduce unsprung weight, thereby reduced wheel-rail impact vibration, running noises and wheel-rail wear, can effectively improve vehicle operating performance and vehicle riding comfort.
Because wheel 8 and inner wheel shell 4 keeping parallelism on horizontal surface, and then realized the rotation of wheel 8 around vertical axes by the rotation between inner wheel shell 4 and the outside wheel shell 3, so just can realize radiai adjustment extremely and contact of a curve by horizontally rotating of wheel 8, realize curve negotiating.
Because a smaller radially anglec of rotation only need be arranged when carrying out radiai adjustment, thereby relative face is the plane between the inside wheel shell 4 of this programme and the outside wheel shell 3, inner wheel shell 4 can only just contact with outside wheel shell 3 around smaller angle of the two-way rotation of vertical axes, and this is its rotary spacing function.The maximum radial adjusting angle that needs to realize can be realized by the gap length that changes between the inside and outside wheel shell.Can carry out the lubricated of bearing by rubber type sealing or labyrinth seal between wheel 8 and the inner wheel shell 4.Wheel end cap 11 is fixed with the outside of wheel 8.
Of the present utility model is an independently car wheel structure, the wheels guide function that the inside wheel shell of its left and right wheels need directly or indirectly be coupled together and could realize independently rotating wheel by connecting rod when being installed on bogie truck.Drive motor 1 is positioned at the left side, and its output connects gear case 9 by connecting rod mechanism, if the then unpowered input herein of non-power truck.
Claims (3)
1. multiple degree of freedom independently rotating wheel, comprise wheel (8), inner wheel shell (4) and outside wheel shell (3), it is characterized in that: the bearing (5) by axis horizontal between wheel (8) and the inner wheel shell (4) is installed connection, be connected by the installation of axis vertical direction between inner wheel shell (4) and the outside wheel shell (3), outside wheel shell (3) is connected with framework by mount pad (10), inner wheel shell (4) supports (2) by the top revolution and bottom revolution support (7) is installed on outside wheel shell (3) inside, be provided with tapered roller bearing (6) between inner wheel shell (4) and the outside wheel shell (3), cross the axis normal direction connection is installed, face relative between wheel (8) and inner wheel shell (4) keeping parallelism on horizontal surface, inner wheel shell (4) and outside wheel shell (3) is the plane.
2. a kind of multiple degree of freedom independently rotating wheel according to claim 1 is characterized in that: two tapered roller bearings (5) are for oppositely installing.
3. a kind of multiple degree of freedom independently rotating wheel according to claim 1 is characterized in that: drive motor (1) is positioned at the left side, and its output connects gear case (9) by connecting rod mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320143788 CN203126374U (en) | 2013-03-27 | 2013-03-27 | Multi-degree of freedom independent rotary wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320143788 CN203126374U (en) | 2013-03-27 | 2013-03-27 | Multi-degree of freedom independent rotary wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203126374U true CN203126374U (en) | 2013-08-14 |
Family
ID=48934390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320143788 Withdrawn - After Issue CN203126374U (en) | 2013-03-27 | 2013-03-27 | Multi-degree of freedom independent rotary wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203126374U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103158432A (en) * | 2013-03-27 | 2013-06-19 | 西南交通大学 | Independent rotating wheel with multiple degrees of freedom |
| CN109017855A (en) * | 2018-08-10 | 2018-12-18 | 苏州品幕春信息科技有限公司 | Multiple degrees of freedom independently rotating wheel |
-
2013
- 2013-03-27 CN CN 201320143788 patent/CN203126374U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103158432A (en) * | 2013-03-27 | 2013-06-19 | 西南交通大学 | Independent rotating wheel with multiple degrees of freedom |
| CN103158432B (en) * | 2013-03-27 | 2015-04-15 | 西南交通大学 | Independent rotating wheel with multiple degrees of freedom |
| CN109017855A (en) * | 2018-08-10 | 2018-12-18 | 苏州品幕春信息科技有限公司 | Multiple degrees of freedom independently rotating wheel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130814 Effective date of abandoning: 20150415 |
|
| RGAV | Abandon patent right to avoid regrant |