Controllable elastic wheel for railway vehicle

Abstract

The invention relates to the technical field of railway vehicles, in particular to a controllable elastic wheel for a railway vehicle, which comprises a transverse shaft and an external mounting ball head axially fixed on the outer side of the transverse shaft, and an external mounting seat is movably assembled on the outer side of the external mounting ball head on the outer side of the transverse shaft. According to the controllable elastic wheel for the railway vehicle, the split type wheel design is adopted, and noise transmission between the wheel and the axle is reduced; by adopting the design of the annular outer wheel, the vibration reduction area of the wheel can be increased, and the vibration reduction effect is improved; the inner mounting base connected with the frame of the railway vehicle is fixedly assembled on the outer side face of the transverse shaft, and the electric control type magnetic control supporting rod on the outer side of the inner mounting base is connected with the outer assembling disc, so that the angle of the whole wheel is controlled, wheel steering is facilitated, and adaptability is improved.

Description

Technical Field

[0001] The invention relates to the technical field of rail vehicles, in particular to a controllable elastic wheel for rail vehicles. Background Art

[0002] With the development of transportation and the acceleration of urbanization, urban rail transit, which has the advantages of high efficiency, environmental protection and convenience, has become one of the important options for solving urban transportation problems. Since most traditional subway and other rail vehicles use rigid wheels, as the vehicle speed increases and the axle weight increases, a lot of noise and vibration will be generated during the operation of the vehicle, causing serious troubles to the normal life of residents along the line, and also reducing the riding comfort of passengers.

[0003] The elastic wheels currently on the market are simply elastic vibration-damping materials such as vibration-damping rubber embedded between the wheel rim and the wheel center. Relying on the vibration-damping and damping effect of the rubber material, they can effectively reduce wheel-rail noise and alleviate the impact and vibration between the wheel and rail.

[0004] However, due to the limited vibration reduction effect of rubber materials, the suppression of noise and impact is very limited, and the adjustable range is also very limited. Summary of the invention

[0005] The technical problem to be solved by the present invention is that the elastic wheels currently on the market have limited vibration reduction effect simply relying on rubber materials, and have very limited suppression of noise and impact, while the adjustable range is also very limited.

[0006] The technical solution adopted by the present invention to solve its technical problems is: a controllable elastic wheel for a rail vehicle, comprising a transverse shaft and an external mounting ball head axially fixed on the outer side of the transverse shaft, an external mounting seat is movably mounted on the outer side of the external mounting ball head on the outer side of the transverse shaft, an external mounting plate is fixedly mounted on the outer side of the external mounting seat, an external wheel is movably sleeved on the outer side of the external mounting plate, an internal mounting seat connected to the frame of the rail vehicle is fixedly mounted on the outer side surface of the transverse shaft, and a plurality of electrically controlled magnetically controlled struts are arranged between the internal mounting seat and the external mounting plate.

[0007] A spherical assembly chamber matching with the external mounting ball head is provided inside the external mounting seat.

[0008] An annular installation adjustment groove is provided on the outer arc surface of the external assembly disk.

[0009] A plurality of internal installation blind holes are provided inside the annular installation adjustment groove, and a magnetically controlled internal support rod is inserted and fixed inside the internal installation blind hole.

[0010] The extended end of the magnetically controlled internal support rod is located in the annular installation adjustment groove and is axially fixed with an arc-shaped extrusion stabilizing plate.

[0011] A plurality of lateral assembly grooves for movably assembling electrically controlled magnetically controlled struts are provided on the outer side surface of the inner mounting seat, and a lateral control assembly frame matching the electrically controlled magnetically controlled struts is fixedly assembled on the side wall of the outer assembly disk.

[0012] Rollers for reducing transmission resistance and friction of external wheels are installed inside the arc-shaped extrusion stabilizing plate.

[0013] The electrically controlled magnetically controlled strut comprises a tilting cylinder body movably mounted inside a lateral assembly groove via an axis, an external piston rod movably mounted on a lateral control assembly frame, an internal piston axially fixed to the inner end of the external piston rod, and an embedded internal electrically controlled regulating device axially fixed inside the external piston rod.

[0014] An embedded installation blind hole is provided inside the external piston rod, and a lateral limiting groove communicating with the embedded installation blind hole is provided on the side wall of the internal piston.

[0015] The embedded internal electric control regulating device comprises an embedded control support rod axially fixed in the embedded installation blind hole and an external extrusion disk axially fixed at the protruding end of the embedded control support rod.

[0016] The beneficial effects of the present invention are: (1) A controllable elastic wheel for a rail vehicle of the present invention adopts a split wheel design to reduce noise transmission between the wheel and the axle; (2) By adopting a ring-shaped outer wheel design, the vibration reduction area of ​​the wheel can be increased, thereby improving the vibration reduction effect; (3) An internal mounting seat connected to the frame of the rail vehicle is fixedly mounted on the outer side of the transverse axle, and the internal mounting seat is connected to the external mounting plate through an electrically controlled magnetically controlled strut on the outer side of the internal mounting seat, thereby controlling the angle of the entire wheel, facilitating wheel steering and improving adaptability; (4) By using magnetic control to control the shock absorption stroke, the vehicle body shock absorption efficiency can be adjusted according to different axle weights to increase comfort; (5) The wheel flip angle is controlled by electronic control and elastic expansion, which makes the control method more diverse and the operation more convenient; (6) The shock-absorbing mechanism adopts a built-in layout design, with a stable structure and strong durability; (7) Independent shock absorption is adopted in different directions, and the shock absorption mechanisms do not interfere with each other, which greatly improves the shock absorption effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is a structural schematic diagram of the present invention.

[0019] Figure 2 It is a schematic diagram of the internal structure of the roller used in the present invention.

[0020] Figure 3 It is a schematic diagram of the internal structure of the electrically controlled magnetically controlled strut in the present invention.

[0021] Figure 4 It is a schematic diagram of the internal structure of the present invention using a magnet. DETAILED DESCRIPTION

[0022] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Figure 1 , Figure 2 , Figure 3 and Figure 4 A controllable elastic wheel for a rail vehicle is shown, comprising a transverse shaft 1 and an external mounting ball head 2 axially fixed on the outside of the transverse shaft 1, an external mounting seat 3 is movably mounted on the outside of the external mounting ball head 2 on the outside of the transverse shaft 1, an external mounting plate 4 is fixedly mounted on the outside of the external mounting seat 3, an external wheel 5 is movably sleeved on the outside of the external mounting plate 4, an internal mounting seat 6 connected to the frame of the rail vehicle is fixedly mounted on the outer surface of the transverse shaft 1, and two electrically controlled magnetically controlled struts 7 are arranged between the internal mounting seat 6 and the external mounting plate 4.

[0025] Working principle: the external wheel 5 rotates along the outer arc surface of the external assembly disk 4, and then the electric-controlled magnetic-controlled support rod 7 on the outer side of the internal mounting seat 6 is used to adjust the angle of the external assembly disk 4, so as to facilitate passive and active flipping adjustment.

[0026] For the purpose of matching connection, a spherical assembly chamber matching with the external mounting ball head 2 is provided inside the external mounting seat 3 .

[0027] The spherical structure is adopted to expand the adjustable flipping, which can not only reduce shock up and down, but also can be flipped left and right. In order to prevent the outer wheel 5 from flipping up and down, the spherical structure can adopt a rugby-type structure, so that it can only flip left and right, but not up and down.

[0028] In order to cooperate with the external movable assembly, an annular installation adjustment groove 8 is opened on the outer arc surface of the external assembly disk 4.

[0029] In order to facilitate internal installation and improve shock absorption, a plurality of internal installation blind holes are opened inside the annular installation adjustment groove 8, and a magnetically controlled internal support rod 9 is inserted and fixed inside the internal installation blind hole.

[0030] The magnetically controlled internal strut 9 is composed of a traditional strut, the difference being that a magnetically controlled valve is arranged at the air inlet and outlet, a closing limit is performed at the position where the maximum stroke is set, and then a spring is arranged inside the cylinder body to facilitate resetting and shock absorption.

[0031] In order to cooperate with the internal extrusion adjustment and increase the supporting area, the extended end of the magnetically controlled internal support rod 9 is located in the annular installation adjustment groove 8 and an arc-shaped extrusion stabilizing plate 10 is axially fixed.

[0032] In order to cooperate with lateral assembly, a plurality of lateral assembly grooves 11 for movable assembly of the electrically controlled magnetically controlled struts 7 are provided on the outer side surface of the internal mounting seat 6, and a lateral control assembly frame 12 cooperating with the electrically controlled magnetically controlled struts 7 is fixedly mounted on the side wall of the external assembly disk 4.

[0033] In order to reduce resistance and noise, a roller 13 for reducing the transmission resistance and friction of the external wheel 5 is installed inside the arc-shaped extrusion stabilizing plate 10 .

[0034] When the roller 13 structure is adopted, a rubber roller 13 is used to reduce its noise; the roller 13 can also be changed into a magnet as needed, and then magnets are installed on the inner wall of the outer wheel 5 and the inner wall of the annular mounting adjustment groove 8. The gap between the outer wheel 5 and the arc-shaped extrusion stabilizing plate 10 is ensured by the principle of like charges repelling each other, thereby further reducing the resistance.

[0035] In order to cooperate with the flipping adjustment, the electrically-controlled magnetically-controlled strut 7 includes a flipping cylinder 71 movably installed inside the lateral assembly groove 11 through an axis, an external piston rod 72 movably installed on the lateral control assembly frame 12, an internal piston 73 axially fixed at the inner end of the external piston rod 72, and an embedded internal electrically-controlled adjustment device axially fixed inside the external piston rod 72.

[0036] The air inlet and outlet of the flip cylinder 71 are both provided with electromagnetic valves to control the telescopic state of the external piston rod 72. At the same time, a shock-absorbing spring is sleeved inside the flip cylinder 71 outside the external piston rod 72 to control elastic reset.

[0037] In order to cooperate with the installation limit and improve the structural stability, an embedded installation blind hole is opened inside the external piston rod 72, and a lateral limit groove connected to the embedded installation blind hole is opened on the side wall of the internal piston 73.

[0038] In order to cooperate with active control and resetting and improve the stability of the entire electrically controlled magnetically controlled strut 7, the embedded internal electrically controlled adjustment device includes an embedded control strut 74 axially fixed in the embedded mounting blind hole and an external extrusion disk 75 axially fixed at the protruding end of the embedded control strut 74.

[0039] The expansion and contraction of the external extrusion disk 75 is controlled by the embedded control strut 74, thereby controlling the relative position between the internal piston 73 and the external piston rod 72 and the flip cylinder 71, so as to facilitate the adjustment of the posture of the entire external assembly disk 4, thereby improving the stability of the wheel.

[0040] When no adjustment is required, the embedded control strut 74 controls the external extrusion disk 75 to shrink inside the lateral limiting groove by shrinking.

[0041] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A controllable elastic wheel for a rail vehicle, comprising a transverse shaft (1) and an externally mounted ball head (2) axially fixed to the outside of the transverse shaft (1), wherein: An external mounting ball head (2) on the outside of the transverse shaft (1) is movably mounted with an external mounting seat (3), an external mounting plate (4) is fixedly mounted on the outside of the external mounting seat (3), an external wheel (5) is movably sleeved on the outside of the external mounting plate (4), an internal mounting seat (6) connected to a frame of a rail vehicle is fixedly mounted on the outer surface of the transverse shaft (1), and a plurality of electrically controlled magnetically controlled struts (7) are arranged between the internal mounting seat (6) and the external mounting plate (4).

2. A controllable elastic wheel for a rail vehicle according to claim 1, characterized in that: The external mounting seat (3) is provided with a spherical assembly chamber inside which matches the external mounting ball head (2).

3. The controllable elastic wheel for a rail vehicle according to claim 1, characterized in that: An annular installation adjustment groove (8) is provided on the outer arc surface of the external assembly disk (4).

4. The controllable elastic wheel for a rail vehicle according to claim 3, characterized in that: A plurality of internal installation blind holes are provided inside the annular installation adjustment groove (8), and a magnetically controlled internal support rod (9) is inserted and fixed inside the internal installation blind hole.

5. The controllable elastic wheel for a rail vehicle according to claim 4, characterized in that: The extended end of the magnetically controlled internal support rod (9) is located in the annular installation adjustment groove (8) and has an arc-shaped extrusion stabilizing plate (10) axially fixed thereto.

6. The controllable elastic wheel for a rail vehicle according to claim 1, characterized in that: A plurality of lateral assembly grooves (11) for movably assembling the electrically controlled magnetically controlled struts (7) are provided on the outer side surface of the internal mounting seat (6), and a lateral control assembly frame (12) matching the electrically controlled magnetically controlled struts (7) is fixedly mounted on the side wall of the external assembly plate (4).

7. The controllable elastic wheel for a rail vehicle according to claim 5, characterized in that: A roller (13) for reducing the transmission resistance and friction of the external wheel (5) is installed inside the arc-shaped extrusion stabilizing plate (10).

8. The controllable elastic wheel for a rail vehicle according to claim 6, characterized in that: The electrically controlled magnetically controlled strut (7) comprises a tilting cylinder (71) movably mounted inside a lateral assembly groove (11) via an axis, an external piston rod (72) movably mounted on a lateral control assembly frame (12), an internal piston (73) axially fixed to the inner side end of the external piston rod (72), and an embedded internal electrically controlled regulating device axially fixed inside the external piston rod (72).

9. A controllable elastic wheel for a rail vehicle according to claim 8, characterized in that: An embedded installation blind hole is provided inside the external piston rod (72), and a lateral limiting groove communicating with the embedded installation blind hole is provided on the side wall of the internal piston (73).

10. The controllable elastic wheel for a rail vehicle according to claim 9, characterized in that: The embedded internal electric control adjustment device comprises an embedded control support rod (74) axially fixed in the embedded installation blind hole and an external extrusion disk (75) axially fixed to the protruding end of the embedded control support rod (74).

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