Novel elastic wheel for rail transit

Abstract

The utility model relates to the technical field of rail transit, in particular to a novel elastic wheel for rail transit. Each wheel comprises a hub, a wheel core, a gland, a V-shaped rubber ring, an annular rubber ring, an inverted triangular steel ring and a bolt; the gland is installed on the side face of the wheel core through a bolt, a groove cavity is formed among the hub, the wheel core and the gland, and the V-shaped rubber ring, the annular rubber ring and the inverted-triangle-shaped steel ring are installed in the groove cavity. The V-shaped rubber ring can relieve axial impact and vertical impact in the running process of a railway vehicle, the annular rubber ring can relieve vertical impact, the V-shaped rubber ring and the annular rubber ring are separated through the inverted triangular steel ring, and meanwhile the inverted triangular steel ring is rough in surface and can prevent the contact face of the rubber ring from creeping. The optimal distribution of the axial rigidity and the radial rigidity of the whole wheel can be realized; the damping and noise-reducing device has good damping and noise-reducing effects, and is convenient to mount and stable in structure.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transportation, in particular to a novel elastic wheel for rail transportation. Background Art

[0002] With the acceleration of my country's urbanization process, urban rail transit has developed rapidly due to its many advantages such as convenience, comfort, and large capacity. However, rail transit vehicles will produce certain vibrations and noise during operation, which has a great impact on passengers' riding experience.

[0003] Currently, a variety of noise reduction measures are being used on lines and vehicles. Common noise reduction measures include setting up isolation belts beside the lines, adding vibration reduction and noise reduction structures in tunnels, optimizing the vehicle structure, or replacing rigid wheels with elastic wheels. Among these vibration reduction and noise reduction measures, elastic wheels are a more economical and practical method with better results. However, there are still many problems with the current elastic wheels. For example, there will be creep and misalignment of the contact surface between the elastic element and other components of the wheel. The existing wheels cannot flexibly achieve the optimal distribution of axial stiffness and radial stiffness. The manufacturing and maintenance costs are high and the service life is short. Utility Model Content

[0004] The utility model provides a novel elastic wheel for rail transit, which can achieve the best distribution of axial rigidity and radial rigidity and effectively prevent the creep of the contact surface of the rubber ring on the basis of meeting the use efficiency of the traditional elastic wheel.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A novel elastic wheel for rail transit comprises a wheel hub, a wheel core, a gland, a V-shaped rubber ring, an annular rubber ring, an inverted triangular steel ring and bolts. The gland is mounted on the side of the wheel core by bolts. A groove cavity is formed between the wheel hub, the wheel core and the gland. The V-shaped rubber ring, the inverted triangular steel ring and the annular rubber ring are sequentially mounted in the groove cavity from bottom to top.

[0007] The V-shaped rubber ring can alleviate the axial impact and vertical impact during the operation of the rail vehicle, and the annular rubber ring can alleviate the vertical impact.

[0008] The V-shaped rubber ring and the annular rubber ring are separated by an inverted triangle steel ring, and the surface of the inverted triangle steel ring is rough, which can prevent the contact surface of the rubber ring from creeping.

[0009] The annular rubber ring has various thicknesses to choose from, so as to achieve the best distribution of the axial rigidity and radial rigidity of the whole wheel.

[0010] The utility model provides a novel elastic wheel for rail transit, and the specific beneficial effects are:

[0011] (1) The utility model can reduce the axial impact and vertical impact during the operation of rail vehicles and improve the riding comfort of passengers.

[0012] (ii) The utility model can prevent the creep of the rubber ring and effectively improve the stability of the wheel.

[0013] (III) The utility model can achieve an optimal distribution of the axial stiffness and radial stiffness of the entire wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a cross-sectional schematic diagram of an elastic wheel for rail transportation;

[0015] Figure 2 It is a schematic diagram of the structure of an elastic wheel for rail transit;

[0016] Figure numerals: 1-wheel hub, 2-wheel core, 3-pressure cover, 4-V-shaped rubber ring, 5-annular rubber ring, 6-inverted triangle steel ring, 7-bolt. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0018] like Figure 1 , Figure 2 As shown, the utility model provides a technical solution: a new elastic wheel for rail vehicles, which mainly includes a wheel hub 1, a wheel core 2, a gland 3, a V-shaped rubber ring 4, an annular rubber ring 5, an inverted triangular steel ring 6 and a bolt 7. The wheel core 2 and the gland 3 are connected by bolts 7, and a groove cavity is formed between the wheel hub 1, the wheel core 2 and the gland 3, and the V-shaped rubber ring 4, the annular rubber ring 5 and the inverted triangular steel ring 6 are installed in the groove cavity.

[0019] This elastic wheel is installed on the axle through the interference fit of the wheel core 2, wherein the specific installation process of the elastic wheel is as follows: first, the wheel core 2 is placed on a plane, then the V-shaped rubber ring 4 is placed in the groove of the wheel core 2, and then the inverted triangle steel ring 6 is placed on the outer ring of the V-shaped rubber ring 4 to make the two fit tightly, and then the annular rubber ring 5 is placed on the outer ring of the inverted triangle steel ring 6, and then the wheel hub 1 is placed to make the annular rubber ring 5 fit tightly with the inner ring of the wheel hub 1, and finally the pressure cover 3 is placed, and then the wheel core 2 and the pressure cover 3 are connected by bolts 7, and finally the entire installation of this wheel is completed.

[0020] In addition to installing the V-shaped rubber ring 4, this article also adds an annular rubber ring 5, and adds an inverted triangle steel ring 6 between the V-shaped rubber ring 4 and the annular rubber ring 5. At the same time, the surface of the inverted triangle steel ring 6 is relatively rough, and its surface is directly in contact with the V-shaped rubber ring 4 and the annular rubber ring 5, which can greatly increase the friction and effectively prevent the rubber ring from creeping.

[0021] The annular rubber ring 5 has various thicknesses to choose from. By combining the annular rubber ring 5 with different thicknesses with the V-shaped rubber ring 4 , the optimal distribution of the axial stiffness and radial stiffness of the entire wheel can be achieved.

[0022] The above is an exemplary description of the utility model. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as various modifications are made using the method concept and technical solution of the utility model, or they are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A novel elastic wheel for rail transit, comprising a wheel hub (1), a wheel core (2), a gland (3), a V-shaped rubber ring (4), an annular rubber ring (5), an inverted triangular steel ring (6), and bolts (7), wherein the gland (3) is mounted on the side of the wheel core (2) by means of the bolts (7), and a groove cavity is formed between the wheel hub (1), the wheel core (2) and the gland (3), and the V-shaped rubber ring (4), the annular rubber ring (5), and the inverted triangular steel ring (6) are mounted in the groove cavity.

2. The novel elastic wheel for rail transit according to claim 1 is characterized in that: A groove cavity is formed between the wheel hub (1), the wheel core (2) and the gland (3), and a V-shaped rubber ring (4), an inverted triangle steel ring (6) and an annular rubber ring (5) are installed in the groove cavity in sequence from bottom to top.

3. The novel elastic wheel for rail transit according to claim 1 is characterized in that: The V-shaped rubber ring (4) and the annular rubber ring (5) are separated by an inverted triangular steel ring (6), and the surface of the inverted triangular steel ring (6) is rough, which can prevent the contact surface of the rubber ring from creeping.

4. The novel elastic wheel for rail transit according to claim 1 is characterized in that: The thickness of the annular rubber ring (5) is adjustable to achieve the best distribution of the axial rigidity and radial rigidity of the entire wheel.

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