Positioning node for railway vehicle bogie

Abstract

The utility model relates to a positioning node for a railway vehicle bogie, which belongs to the technical field of railway vehicle bogies and comprises an outer cylinder, an inner cylinder concentrically arranged on the inner side of the outer cylinder, a rubber sleeve arranged between the outer cylinder and the inner cylinder, and an inner limiting component arranged on the inner side of the rubber sleeve and connected with the inner cylinder. The inner limiting assembly comprises an inner rubber convex ring fixedly arranged on the inner side of the rubber sleeve, an outer limiting groove matched with the inner rubber convex ring in a clamped mode is formed in the outer side of the inner barrel, an outer limiting assembly connected with the outer barrel is arranged on the outer side of the rubber sleeve, and the outer limiting assembly comprises an outer rubber convex ring fixedly arranged on the outer side of the rubber sleeve. The rubber sleeve is arranged between the inner cylinder and the outer cylinder in a sleeved mode, flexible connection is achieved, longitudinal rigidity and transverse rigidity are transmitted, proper rigidity in all directions is provided, the damping and buffering effect is improved, and then the comfort of passengers is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of railway vehicle bogies, specifically relating to positioning nodes for railway vehicle bogies. Background Technology

[0002] With the increase in rail vehicle capacity, rail vehicles have become a major mode of transportation for people. As one of the most important components of a rail vehicle structure, the bogie's construction directly determines the vehicle's stability and passenger comfort. Positioning rubber joints are required during the use of rail vehicle bogies.

[0003] For example, in the Chinese utility model patent with announcement number CN217022517U, entitled "A Positioning Rubber Node for a Railway Vehicle Bogie," a mandrel is specifically included. The outer wall of the mandrel is provided with an outer sleeve with a cross-section of "︺". The outer wall of the outer sleeve is provided with a rubber layer, and the cross-section of the rubber layer is also "︺", which fits and adheres to the outer wall of the outer sleeve. Although the above-mentioned prior art can achieve flexible connection, transmit longitudinal and lateral forces, provide appropriate stiffness in all directions, and improve the vibration damping effect, the rubber layer is prone to detachment from the outer sleeve. After long-term use, the rubber layer is prone to aging, which further exacerbates the possibility of the rubber layer falling off. Therefore, a positioning node for railway vehicle bogies is now needed. Utility Model Content

[0004] The purpose of this invention is to provide a positioning node for rail vehicle bogies that is simple in structure and reasonably designed in order to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A positioning node for a rail vehicle bogie includes an outer cylinder, an inner cylinder concentrically arranged on the inner side of the outer cylinder, a rubber sleeve between the outer cylinder and the inner cylinder, an inner limiting component connected to the inner cylinder on the inner side of the rubber sleeve, and an outer limiting component connected to the outer cylinder on the outer side of the rubber sleeve.

[0007] As a further optimization of this utility model, the inner limiting component includes an inner rubber protrusion ring fixedly disposed inside the rubber sleeve, and an outer limiting groove that engages with the inner rubber protrusion ring is provided on the outer side of the inner cylinder.

[0008] As a further optimization of this utility model, the inner rubber convex ring is provided with a plurality of parts, and the outer limiting groove is provided with a plurality of parts.

[0009] As a further optimization of this utility model, the outer limiting component includes an outer rubber protrusion ring fixedly disposed on the outside of the rubber sleeve, and an inner limiting groove is provided on the inner side of the outer cylinder to engage with the outer rubber protrusion ring.

[0010] As a further optimization of this utility model, the outer rubber convex ring is provided with a plurality of parts, and the inner limiting groove is provided with a plurality of parts.

[0011] As a further optimization of this utility model, the cross-sections of the inner rubber ring, the outer rubber ring, the outer limiting groove, and the inner limiting groove all adopt a semi-circular structure.

[0012] The beneficial effects of this utility model are as follows: By placing a rubber sleeve between the inner and outer cylinders, the vibration between the inner and outer cylinders can be buffered. Furthermore, by engaging the inner rubber convex ring on the inner side of the rubber sleeve with the outer limiting groove on the outer side of the inner cylinder, and simultaneously engaging the outer rubber convex ring on the outer side of the rubber sleeve with the inner limiting groove on the inner side of the outer cylinder, the rubber sleeve can be prevented from shaking during the concentric engagement of the inner and outer cylinders. This prevents the rubber sleeve from slipping, avoids affecting the buffering and vibration reduction effect, achieves a flexible connection, transmits longitudinal and lateral forces, provides appropriate stiffness in all directions, improves the vibration reduction and buffering effect, and thus improves passenger comfort. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the unfolded overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the partial assembly of the overall structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the overall structure of the outer cylinder of this utility model;

[0016] Figure 4 This is a schematic diagram of the overall assembly structure of this utility model.

[0017] In the diagram: 1. Outer cylinder; 101. Inner limiting groove; 2. Inner cylinder; 201. Outer limiting groove; 3. Rubber sleeve; 301. Outer rubber convex ring; 302. Inner rubber convex ring. Detailed Implementation

[0018] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0019] Example

[0020] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, a positioning node for a railway vehicle bogie includes an outer cylinder 1, an inner cylinder 2 concentrically arranged on the inner side of the outer cylinder 1, and an annular cavity between the inner wall of the outer cylinder 1 and the outer wall of the inner cylinder 2. A rubber sleeve 3 is arranged between the outer cylinder 1 and the inner cylinder 2, and is disposed within the annular cavity. The wall thickness of the rubber sleeve 3 is the same as the thickness of the annular cavity. The rubber sleeve 3 seals the gap between the outer cylinder 1 and the inner cylinder 2. The outer cylinder 1, the inner cylinder 2, and the rubber sleeve 3 all adopt a circular structure. Several inner rubber protrusions 302 are fixedly arranged on the inner side of the rubber sleeve 3. In this embodiment, the inner rubber protrusions 302... Two inner rubber rings 302 are provided, and the two inner rubber rings 302 are symmetrically arranged at both ends of the inner side of the rubber sleeve 3. Two outer limiting grooves 201 are opened on the outer side of the inner cylinder 2. The outer limiting grooves 201 are engaged with the inner rubber rings 302. Both the inner rubber rings 302 and the outer limiting grooves 201 adopt a semi-circular structure. In use, by inserting the inner rubber rings 302 on the inner side of the rubber sleeve 3 into the outer limiting grooves 101 on the inner side of the inner cylinder 2, the rubber sleeve 3 can be fixed. In the reverse direction, the inner cylinder 2 can also be fixed to prevent slippage and facilitate the replacement of the rubber sleeve 3.

[0021] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a number of outer rubber protrusions 301 are fixedly provided on the outer side of the rubber sleeve 3. In this embodiment, two outer rubber protrusions 301 are provided, and the two outer rubber protrusions 301 are symmetrically arranged at both ends of the outer side of the rubber sleeve 3. Two inner limiting grooves 101 are opened on the inner side of the outer cylinder 1. The inner limiting grooves 101 are engaged with the outer rubber protrusions 301. Both the outer rubber protrusions 301 and the inner limiting grooves 101 adopt a semi-circular structure. In use, by inserting the outer rubber protrusions 301 on the outer side of the rubber sleeve 3 into the inner limiting grooves 101 on the inner side of the outer cylinder 1, the rubber sleeve 3 can be fixed. In the opposite direction, the outer cylinder 1 can also be fixed to prevent slippage and facilitate the replacement of the rubber sleeve 3.

[0022] It should be noted that, in use, the positioning node for the rail vehicle bogie can achieve a flexible connection by setting a rubber sleeve 3 between the outer cylinder 1 and the inner cylinder 2, which can transmit longitudinal and lateral forces, provide appropriate stiffness in all directions, improve the vibration damping effect, and thus improve passenger comfort.

[0023] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. Positioning node for a bogie of a railway vehicle, comprising an outer cylinder (1), characterized in that, The inner side of the outer cylinder (1) is provided with an inner cylinder (2) in a concentric manner, a rubber sleeve (3) is arranged between the outer cylinder (1) and the inner cylinder (2), the inner side of the rubber sleeve (3) is provided with an inner limiting assembly connected with the inner cylinder (2), and the outer side of the rubber sleeve (3) is provided with an outer limiting assembly connected with the outer cylinder (1).

2. Positioning node for a bogie of a railway vehicle according to claim 1, characterized in that: The inner limiting assembly comprises an inner rubber bead (302) fixedly arranged on the inner side of the rubber sleeve (3), and the outer side of the inner cylinder (2) is provided with an outer limiting groove (201) matched with the inner rubber bead (302) in a clamping manner.

3. The positioning node for a bogie of a railway vehicle according to claim 2, characterized in that: The inner rubber bead (302) is provided with a plurality of inner rubber beads, and the outer limiting groove (201) is provided with a plurality of outer limiting grooves.

4. The positioning node for a bogie of a railway vehicle according to claim 2, characterized in that: The outer limiting assembly comprises an outer rubber bead (301) fixedly arranged on the outer side of the rubber sleeve (3), and the inner side of the outer cylinder (1) is provided with an inner limiting groove (101) matched with the outer rubber bead (301) in a clamping manner.

5. The positioning node for a bogie of a railway vehicle according to claim 4, characterized in that: The outer rubber bead (301) is provided with a plurality of outer rubber beads, and the inner limiting groove (101) is provided with a plurality of inner limiting grooves.

6. The positioning node for a bogie of a railway vehicle according to claim 4, characterized in that: The cross sections of the inner rubber bead (302), the outer rubber bead (301), the outer limiting groove (201) and the inner limiting groove (101) all adopt a semicircular structure.

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