阅读说明：本技术 一种高速动车组用油压减振器保护罩 (Oil pressure shock absorber protection cover for high-speed motor train unit ) 是由 莫焱森 吴旭 吴彤 于 2020-04-30 设计创作，主要内容包括：本发明提供一种高速动车组用油压减振器保护罩,涉及轨道车辆用油压减振器技术领域,包括：连接部和本体,所述连接部的内壁整体设有螺纹结构,用于与所述油压减振器的活塞杆的端部螺纹配合,所述连接部的外壁一端设有凹槽,所述本体嵌入所述凹槽槽内与所述连接部固定相连。本发明保护罩连接部采用整体螺纹式结构,其他部位采用薄钢管与连接部焊接结构,使其满足减振器质量控制要求。(The invention provides an oil pressure shock absorber protection cover for a high-speed motor train unit, which relates to the technical field of oil pressure shock absorbers for rail vehicles and comprises the following components: the connecting part is characterized by comprising a connecting part and a body, wherein the inner wall of the connecting part is integrally provided with a thread structure and is used for being in thread fit with the end part of a piston rod of the oil pressure shock absorber, one end of the outer wall of the connecting part is provided with a groove, and the body is embedded into the groove of the groove and is fixedly connected with the connecting part. The connecting part of the protective cover adopts an integral threaded structure, and other parts adopt a structure of welding the thin steel pipe and the connecting part, so that the quality control requirement of the shock absorber is met.)

1. The utility model provides a high-speed is oil damper safety cover for EMUs which characterized in that includes: the connecting part is characterized by comprising a connecting part and a body, wherein the inner wall of the connecting part is integrally provided with a thread structure and is used for being in thread fit with the end part of a piston rod of the oil pressure shock absorber, one end of the outer wall of the connecting part is provided with a groove, and the body is embedded into the groove of the groove and is fixedly connected with the connecting part.

2. The protective cover for the oil damper of high-speed motor train units according to claim 1, wherein the groove is a weld groove, and the connecting portion is fixedly connected with the body by welding.

3. The protective cover for the oil damper of the high-speed motor train unit according to claim 1, wherein a thread fastening glue is further arranged at the thread matching position.

4. The protective cover for the oil damper of the high-speed motor train unit according to claim 2, wherein the body is made of a thin steel pipe material.

Technical Field

The invention belongs to the technical field of oil pressure dampers for railway vehicles, and particularly relates to an oil pressure damper protective cover for a high-speed motor train unit.

Background

The oil pressure vibration absorber for the rail vehicle is used for reducing vehicle suspension vibration, ensuring that the rail vehicle safely and stably runs on a line, and improving the riding comfort of passengers. The oil pressure shock absorber absorbs vibration and energy during reciprocating motion and is realized by connecting a piston rod with an internal damping system and an external vibration source, so that the damage of the piston rod can cause the failure of a sealing system of the shock absorber to cause oil leakage; the protective cover is used for protecting the piston rod of the oil pressure shock absorber to prevent the piston rod from being impacted by stones and foreign matters, the anti-snaking protective cover commonly used at present is fixed by small bolts uniformly distributed on the circumference as shown in figure 1, but the small bolts have the risk of falling when being impacted by larger foreign matters and the shock absorber per se, so that the piston rod is not protected, and the small bolts falling on a track have certain danger.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the hydraulic shock absorber protective cover for the high-speed motor train unit, the connecting part of the protective cover adopts an integral threaded structure, and other parts adopt a structure that a thin steel pipe is welded with the connecting part, so that the protective cover meets the quality control requirement of the shock absorber.

In order to solve at least one of the above technical problems, the technical solution adopted by the present invention is:

the utility model provides a high-speed is oil damper safety cover for EMUs, includes: the connecting part is characterized by comprising a connecting part and a body, wherein the inner wall of the connecting part is integrally provided with a thread structure and is used for being in thread fit with the end part of a piston rod of the oil pressure shock absorber, one end of the outer wall of the connecting part is provided with a groove, and the body is embedded into the groove of the groove and is fixedly connected with the connecting part.

Further, the groove is a welding seam groove, and the connecting part is fixedly connected with the body through welding.

Furthermore, the thread matching part is also provided with thread fastening glue, so that the reliability of threaded connection is ensured.

Further, the body is made of thin steel pipe materials.

The beneficial effects of the invention at least comprise: the connecting part of the protective cover adopts an integral threaded structure, so that the risk of failure of the traditional screw is avoided, and the other parts adopt a structure of welding a thin steel pipe and the connecting part, so that the quality control requirement of the shock absorber is met.

Drawings

Fig. 1 is a schematic view of a prior art boot assembly.

Fig. 2 is a schematic view of the protective cover of the present invention.

Fig. 3 is a schematic view of the assembly of the protective cover of the present invention.

The bolt 1, the protective cover 2, the connecting portion 201, the groove 202, the body 203 and the piston rod 3 are arranged in the groove.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to specific examples. The following examples are illustrative only and are not to be construed as limiting the invention. The examples, where specific techniques or conditions are not indicated, are to be construed according to the techniques or conditions described in the literature in the art or according to the product specifications.

Fig. 1 is an assembly schematic diagram of a protective cover in the prior art, and as shown in fig. 1, a commonly used anti-snaking protective cover at present is fixed by small bolts uniformly distributed on the circumference, but the small bolts have a risk of falling off under the working conditions of impact of heavy objects such as stones and long-term severe vibration, so that a piston rod is unprotected, and the small bolts falling on a track also have certain danger.

The invention designs an oil pressure damper protective cover for a high-speed motor train unit to overcome the technical problems in the prior art, and the protective cover is shown in the figure 2, and the protective cover is assembled in the figure 3. Referring to fig. 2 and 3, the protective cover of the present invention mainly includes: the connecting part is characterized by comprising a connecting part and a body, wherein the inner wall of the connecting part is integrally provided with a thread structure and is used for being in thread fit with the end part of a piston rod of the oil pressure shock absorber, one end of the outer wall of the connecting part is provided with a groove, and the body is embedded into the groove of the groove and is fixedly connected with the connecting part.

The groove is a welding seam groove, and the connecting part is fixedly connected with the body through welding.

The thread matching part is also provided with thread fastening glue, so that the reliability of threaded connection is ensured.

The body is made of thin steel pipe materials, and the quality of the protective cover is guaranteed not to exceed the limit.

In conclusion, the connecting part of the protective cover adopts an integral threaded structure, the risk of failure of the traditional screw is avoided, and the other parts adopt a structure of welding a thin steel pipe and the connecting part, so that the quality control requirement of the shock absorber is met.

Although embodiments of the present invention have been shown and described, it is understood that the embodiments are illustrative and not restrictive, that various changes, modifications, substitutions and alterations may be made herein without departing from the spirit and scope of the invention as defined by the appended claims.