CN217301379U

CN217301379U - Thin metal spring leaf for locomotive

Info

Publication number: CN217301379U
Application number: CN202121527935.7U
Authority: CN
Inventors: 薛妮
Original assignee: Dalian Jianuo Machinery Manufacturing Co ltd
Current assignee: Dalian Jianuo Machinery Manufacturing Co ltd
Priority date: 2021-07-06
Filing date: 2021-07-06
Publication date: 2022-08-26
Anticipated expiration: 2031-07-06

Abstract

The utility model discloses a thin metal spring leaf for locomotive, including the spring leaf, the four corners position department of spring leaf all carries out slick and sly and handles and be provided with the spring leaf chamfer, the upper end of spring leaf scribbles the top end coating layer, the lower extreme of spring leaf scribbles the bottom end coating layer, the intermediate level of spring leaf is provided with the spring leaf main part. The utility model discloses a special heat treatment method quenches the spring leaf main part, make the spring leaf main part reach HRC 40-45's technical requirement standard after quenching, evenly scribble up end roughness and lower terminal surface roughness simultaneously on the top surface coating of spring leaf main part and the bottom surface coating, the material characteristic of up end roughness and lower terminal surface roughness makes the spring leaf have wear-resisting lubricated high temperature resistant high pressure resistant characteristic when carrying out the displacement in the actuating mechanism inside of diesel locomotive, make the spring leaf be adapted to the inside high temperature high pressure environment of diesel locomotive actuating mechanism and be adapted to the friction that produces when the inside displacement of actuating mechanism.

Description

Thin metal spring leaf for locomotive

Technical Field

The utility model relates to a diesel locomotive technical field specifically is a thin metal spring leaf for locomotive.

Background

The spring leaf is an important part of the diesel locomotive, the main driving mechanism of the diesel locomotive during the actuating mechanism of the diesel locomotive, the actuating mechanism of the diesel locomotive is started and controlled through the position change of the spring leaf during the operation, the spring leaf moves under the restriction in the actuating mechanism of the diesel locomotive so that the actuating mechanism can execute the assigned instruction, the diesel locomotive works according to the instruction, the actuating mechanism of the diesel locomotive is generally in the high-temperature and high-pressure environment, the spring leaf inside the actuating mechanism is easy to deform and cannot grind a plane due to the thin thickness, high technical requirements and high heat treatment difficulty of the spring leaf, and higher characteristic requirements are required when the actuating mechanism moves in the high-temperature and high-pressure environment.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a thin metal spring piece for locomotive to solve the problem that proposes in the above-mentioned background art.

To achieve the above object, the present invention provides the following solutions:

the utility model provides a thin metal spring leaf for locomotive, includes the spring leaf, the four corners position department of spring leaf all carries out the rounding off and is provided with the spring leaf chamfer, the upper end of spring leaf scribbles the top end coating layer, the lower extreme of spring leaf scribbles the bottom end coating layer, the intermediate level of spring leaf is provided with the spring leaf main part.

As a further improvement of the technical scheme, the spring piece body is corrected and reshaped by a heat treatment method, the technical requirement of the quenched spring piece body needs to reach HRC40-45, and the spring piece body needs to be confirmed to be crack-free by infrared flaw detection.

As a further improvement of the technical scheme, the upper end surface coating and the lower end surface coating are made of coatings made of molybdenum disulfide and are uniformly coated, and the thicknesses of the upper end surface coating and the lower end surface coating are 0.01-0.02 mm.

As a further improvement of the technical solution, the surface roughness of the upper end surface coating is required to be upper end surface roughness, the surface roughness of the lower end surface coating is required to be lower end surface roughness, the spring leaf is provided with non-end surfaces after the upper end surface coating and the lower end surface coating are removed, the roughness of the non-end surfaces is required to be non-end surface roughness, the roughness of the upper end surface roughness and the roughness of the lower end surface roughness is required to be 0.8 μm, and the roughness of the non-end surface roughness is required to be 0.83 μm.

Compared with the prior art, the beneficial effects of the utility model are that:

the spring leaf main body is quenched by a special heat treatment method, so that the spring leaf main body reaches the technical requirement standard of HRC40-45 after quenching, meanwhile, the upper end surface coating and the lower end surface coating of the spring leaf main body are uniformly coated with the upper end surface roughness and the lower end surface roughness, and the material characteristics of the upper end surface roughness and the lower end surface roughness enable the spring leaf to have the characteristics of wear resistance, lubrication, high temperature resistance and high pressure resistance when the spring leaf is displaced in an execution mechanism of the internal combustion locomotive, so that the spring leaf is suitable for the high-temperature and high-pressure environment in the execution mechanism of the internal combustion locomotive and friction generated when the spring leaf is displaced in the execution mechanism.

Drawings

FIG. 1 is a schematic perspective view of a thin metal spring plate for a motorcycle;

FIG. 2 is a side view of a thin metal spring plate for a locomotive;

FIG. 3 is a schematic cross-sectional view of a thin metal spring plate for a motorcycle;

in the figure: 1. a spring plate; 2. chamfering the spring piece; 3. an upper end coating layer; 4. roughness of the upper end face; 5. A lower end coating layer; 6. the roughness of the lower end surface; 7. a non-end surface roughness; 8. a spring plate body.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Example 1

Referring to fig. 1-3, in an embodiment of the present invention, a thin metal spring plate for a locomotive includes a spring plate 1, four corners of the spring plate 1 are rounded and provided with spring plate chamfers 2, so that the spring leaf 1 is more round and smooth when the spring leaf is displaced in the actuating mechanism of the internal combustion engine, the resistance is reduced, the upper end coating 3 is coated on the upper end of the spring leaf 1, the lower end coating 5 is coated on the lower end of the spring leaf 1, the upper end coating 3 and the lower end coating 5 can endow the spring leaf 1 with the characteristic effects of high temperature resistance, high pressure resistance, wear resistance and lubrication, the spring piece 1 is adaptive to the movement of an executing mechanism of the internal combustion locomotive during execution, the spring piece main body 8 is arranged in the middle layer of the spring piece 1, the spring piece main body 8 is processed by a special process, and the spring piece 1 can be provided with enough strength and toughness, so that the spring piece 1 meets the requirement of the internal movement of the executing mechanism of the internal combustion locomotive.

Preferably, the spring plate body 8 is corrected and reshaped by a heat treatment method, the technical requirement of the quenched spring plate body 8 needs to reach HRC40-45, the Rockwell hardness requirement of the spring plate body 8 is 40-50 so as to provide enough hardness requirement for the spring plate 1, the spring plate body 8 does not have cracks after being confirmed by infrared flaw detection, the crack-free spring plate body 8 can better provide enough hardness and toughness, and the spring plate 1 can be ensured to be suitable for the internal motion requirement of an actuator of a diesel locomotive.

Preferably, the upper end surface coating 3 and the lower end surface coating 5 are made of a material which is formed by uniformly coating a coating made of molybdenum disulfide, the thicknesses of the upper end surface coating 3 and the lower end surface coating 5 are 0.01 mm-0.02 mm, and the upper end surface coating 3 and the lower end surface coating 5 can endow the spring leaf 1 with the characteristic effects of high temperature resistance, high pressure resistance and wear resistance and lubrication, so that the spring leaf 1 is adapted to the movement of an execution mechanism of the diesel locomotive during execution.

Molybdenum disulfide has various characteristics and is an important solid lubricant, and when molybdenum disulfide is used for a friction material, the molybdenum disulfide is antifriction at low temperature, friction is increased at high temperature, the ignition loss is small, and molybdenum disulfide is selected according to the characteristics and is suitable for being used as a coating of the spring piece 1.

Preferably, the surface roughness of the upper end surface coating 3 is required to be 4, the surface roughness of the lower end surface coating 5 is required to be 6, the surfaces of the spring leaf 1 except the upper end surface coating 3 and the lower end surface coating 5 are set to be non-end surfaces, the roughness of the non-end surfaces is required to be 7, the roughness of the upper end surface roughness 4 and the roughness of the lower end surface roughness 6 are required to be 0.8 μm, and the roughness of the non-end surface roughness 7 is required to be 0.83 μm.

The utility model discloses a theory of operation:

quenching the spring leaf main body 8 by a special heat treatment method, so that the spring leaf main body 8 reaches the technical requirement standard of HRC40-45 after quenching, and confirming no crack after infrared flaw detection, meanwhile, uniformly coating the upper end surface coating 3 and the lower end surface coating 5 of the spring leaf main body 8 with the upper end surface roughness 4 and the lower end surface roughness 6, wherein the upper end surface roughness 4 and the lower end surface roughness 6 are made of molybdenum disulfide materials, and due to the characteristics of the molybdenum disulfide materials, the spring leaf 1 has the characteristics of wear resistance, lubrication, high temperature resistance and high pressure resistance when performing displacement in an execution mechanism of an internal combustion locomotive, so that the spring leaf 1 is suitable for executing motion in the execution mechanism of the internal combustion locomotive.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A thin metal spring piece for a locomotive comprises a spring piece (1), and is characterized in that: the spring piece chamfering device is characterized in that the four corners of the spring piece (1) are all subjected to rounding treatment to be provided with spring piece chamfers (2), the upper end of the spring piece (1) is coated with an upper end surface coating (3), the lower end of the spring piece (1) is coated with a lower end surface coating (5), and the middle layer of the spring piece (1) is provided with a spring piece main body (8).

2. The thin metal leaf spring for locomotives according to claim 1, wherein: the spring piece main body (8) is corrected and reshaped by a heat treatment method, the technical requirement of the quenched spring piece main body (8) needs to reach HRC40-45, and the spring piece main body (8) does not have cracks after infrared flaw detection.

3. The thin metal leaf spring for locomotives according to claim 1, wherein: the material of upper end finish coat (3) and lower terminal coating (5) is evenly scribbled for the coating that molybdenum disulfide made and forms, the thickness of upper end finish coat (3) and lower terminal coating (5) is 0.01mm ~ 0.02 mm.

4. The thin metal leaf spring for locomotives according to claim 1, wherein: the spring piece is characterized in that the surface roughness of the upper end surface coating (3) is required to be upper end surface roughness (4), the surface roughness of the lower end surface coating (5) is required to be lower end surface roughness (6), the surfaces of the spring piece (1) except the upper end surface coating (3) and the lower end surface coating (5) are set to be non-end surfaces, the roughness of the non-end surfaces is required to be non-end surface roughness (7), the roughness of the upper end surface roughness (4) and the roughness of the lower end surface roughness (6) are required to be 0.8 mu m, and the roughness of the non-end surface roughness (7) is required to be 0.83 mu m.