Motor train unit transformer mounting seat

Abstract

The utility model discloses a motor train unit transformer mounting base which comprises a transformer body, channel steel is mounted on the two sides of the transformer body respectively, and openings of the channel steel face the side away from the transformer body. Guide columns are vertically installed in the channel steel, supporting seats are slidably installed on the guide columns, the ends, away from the guide columns, of the supporting seats are erected on cross beams at the bottom of the vehicle body, the transformer body is hung between the two cross beams, and buffering pads are arranged between the supporting seats and the cross beams. The guide columns are sleeved with compression springs, and the compression springs are located between the supporting base and the upper top face of the steel channel. The absorption of low-frequency vibration and high-frequency vibration is realized through the compression springs and the buffer pads respectively, so that the buffer performance on the transformer body is improved, the impact on the transformer body is reduced, and the safety of equipment is guaranteed; and the compression spring is pre-tightened through the pre-tightening mechanism, so that the connection rigidity of the transformer body is improved, and the shock resistance of the transformer body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted transformers, in particular to a transformer mounting seat for an electric train set. Background Art

[0002] The EMU traction transformer is a power transformer with a special voltage level. It is used to convert the 25kV high-voltage electricity of the contact network into various low-voltage electricity required by the traction system and auxiliary systems. It is the power source of the rail vehicle and the core and key component of the traction system.

[0003] Existing EMU transformers are generally suspended on the crossbeam at the bottom of the EMU body through buffer pads. However, due to the heavy weight and complex vibration sources of the EMU transformer, the existing installation structure has the problem of poor buffering effect.

[0004] Based on the above technical problems, the present application proposes a transformer mounting base for an EMU. Utility Model Content

[0005] The purpose of this utility model is to provide a transformer mounting base for an EMU train to solve the technical problems mentioned in the background art. The purpose of this utility model is achieved through the following technical solutions:

[0006] A transformer mounting seat for an EMU comprises a transformer body, wherein channel steels are respectively mounted on both sides of the transformer body, with the opening of the channel steels facing the side away from the transformer body; a guide column is vertically mounted in the channel steel, a support seat is slidably mounted on the guide column, and an end of the support seat away from the guide column is placed on a crossbeam at the bottom of the vehicle body so that the transformer body is suspended between the two crossbeams, and a buffer pad is provided between the support seat and the crossbeam; a compression spring is sleeved on the guide column, and the compression spring is located between the support seat and the upper top surface of the channel steel.

[0007] Furthermore, the channel steel is fixed to the side surface of the transformer body through the connecting plate, and the distance between the outer end surfaces of the two channel steels is equal to the distance between the inner end surfaces of the two beams.

[0008] Furthermore, the connecting plate is a triangular structure.

[0009] Furthermore, the support seat is fixed to the crossbeam by bolts.

[0010] Furthermore, pre-tightening mechanisms are respectively provided at the four corners of the bottom of the transformer body, and the pre-tightening mechanisms are connected to the bottom plate of the vehicle body.

[0011] Furthermore, the pre-tightening mechanism includes an upper connecting seat, a lower connecting seat and a pre-tightening bolt. The upper connecting seat is installed at the bottom of the transformer body and is provided with a through hole. The lower connecting seat is installed on the bottom plate of the vehicle body and is provided with a threaded hole. The pre-tightening bolt passes through the through hole and is screwed to the threaded hole.

[0012] The technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0013] 1. The low-frequency vibration and high-frequency vibration are absorbed by compression springs and buffer pads respectively, which improves the buffering performance of the transformer body, reduces the impact on the transformer body, and ensures the safety of the equipment;

[0014] 2. The compression spring is pre-tightened through the pre-tightening mechanism, which improves the rigidity of the transformer body connection and increases the impact resistance of the transformer body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings in the specification, which constitute a part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0016] Figure 1 This is the main view of the embodiment of the present application;

[0017] Figure 2 This is a schematic diagram of the support base structure of an embodiment of the present application;

[0018] Figure 3 This is a schematic diagram of the pre-tightening mechanism structure of an embodiment of the present application;

[0019] Figure 4 This is the main view of an embodiment of the present application.

[0020] Markings in the attached figure: 1. Transformer body; 11. Connecting plate; 12. Channel steel; 13. Guide column; 2. Support seat; 21. Buffer pad; 3. Compression spring; 4. Crossbeam; 5. Pre-tightening mechanism; 51. Upper connecting seat; 52. Lower connecting seat; 53. Pre-tightening bolt; 6. Base plate. DETAILED DESCRIPTION

[0021] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the drawings and specific implementation methods of the specification. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present utility model and its application or use. Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present utility model.

[0022] like Figure 1 、 Figure 4The illustrated EMU transformer mounting base includes a transformer body 1, with four triangular connecting plates 11 welded to either side of the transformer body 1. The connecting plates 11 have one right-angled side welded to a side wall of the transformer body 1, while the other right-angled side of the connecting plate 11 is flush with the upper surface of the transformer body 1. A horizontal channel steel 12 is welded between the upper ends of the four connecting plates 11, with the openings of both channels 12 facing away from the transformer body 1.

[0023] like Figure 1 、 Figure 2 As shown, a cylindrical guide column 13 is vertically welded inside the channel steel 12, and a support seat 2 is slidably mounted on the guide column 13. The support seat 2 is a trapezoidal structure, and the large end of the support seat 2 is sleeved on the guide column 13 through a linear bearing. A compression spring 3 is sleeved on the guide column 13, and the compression spring 3 is located between the support seat 2 and the upper top surface of the channel steel 12. The small end of the support seat 2 extends out of the channel steel 12 and overlaps the crossbeam 4 at the bottom of the vehicle body. A buffer pad 21 made of rubber material is applied to the lower surface of the lower end of the support seat 2, and the small end of the support seat 2 is fixedly connected to the crossbeam 4 by bolts. When in use, the compression spring 3 can effectively absorb the low-frequency vibrations generated during the driving of the vehicle, while the buffer pad 21 can absorb the high-frequency vibrations generated by the operation of the transformer body 1, thereby improving the buffering performance of the transformer body 1 and ensuring the safe and stable operation of the transformer body 1.

[0024] like Figure 1 、 Figure 4 As shown, as a preferred embodiment of the present application, the crossbeam 4 is perpendicular to the travel direction of the EMU, and the distance between the outer end faces of the two channel steels 12 is equal to the distance between the inner end faces of the two crossbeams 4, thereby limiting the transformer body 1 and preventing the transformer body 1 from being offset due to inertia during the starting and braking of the EMU.

[0025] like Figure 1 、 Figure 3 As shown, pre-tightening mechanisms 5 are mounted at the four corners of the bottom of the transformer body 1. The pre-tightening mechanism 5 comprises an upper connecting seat 51, a lower connecting seat 52, and pre-tightening bolts 53. The upper connecting seat 51 is a U-shaped structure, welded to the bottom of the transformer body 1, and has a through-hole. The lower connecting seat 52 is an inverted U-shaped structure, welded to the bottom plate 6 of the vehicle body, and has a threaded hole. The pre-tightening bolts 53 are hexagonal bolts or hexagon socket bolts. The pre-tightening bolts 53 pass through the through-holes from top to bottom and are screwed into the threaded holes, thereby applying downward tension to the transformer body 1, pre-tightening the compression spring 3, improving the rigidity of the connection of the transformer body 1, and enhancing the impact resistance of the transformer body 1.

[0026] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention: the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0027] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A transformer mounting base for an EMU, characterized in that: It includes a transformer body, with channel steels installed on both sides of the transformer body, and the opening of the channel steel faces the side away from the transformer body; a guide column is vertically installed in the channel steel, and a support seat is slidably installed on the guide column, and the end of the support seat away from the guide column is placed on the crossbeam at the bottom of the vehicle body, so that the transformer body is suspended between the two crossbeams, and a buffer pad is provided between the support seat and the crossbeam; a compression spring is sleeved on the guide column, and the compression spring is located between the support seat and the upper top surface of the channel steel.

2. The EMU transformer mounting seat according to claim 1, characterized in that: The channel steel is fixed to the side surface of the transformer body through a connecting plate, and the distance between the outer end surfaces of the two channel steels is equal to the distance between the inner end surfaces of the two beams.

3. The EMU transformer mounting seat according to claim 2, characterized in that: The connecting plate is a triangular structure.

4. The EMU transformer mounting seat according to claim 1, characterized in that: The support seat is fixed on the crossbeam by bolts.

5. The EMU transformer mounting seat according to claim 1, characterized in that: The four corners of the bottom of the transformer body are respectively provided with pre-tightening mechanisms, and the pre-tightening mechanisms are connected to the bottom plate of the vehicle body.

6. The EMU transformer mounting seat according to claim 5, characterized in that: The pre-tightening mechanism includes an upper connecting seat, a lower connecting seat and a pre-tightening bolt. The upper connecting seat is installed at the bottom of the transformer body, and a through hole is provided on the upper connecting seat; the lower connecting seat is installed on the bottom plate of the vehicle body, and a threaded hole is provided on the lower connecting seat; the pre-tightening bolt passes through the through hole and is screwed to the threaded hole.

Images