CN215371383U

CN215371383U - Long-life metal bellows

Info

Publication number: CN215371383U
Application number: CN202121838944.8U
Authority: CN
Inventors: 艾嘉
Original assignee: Raoyang Junyu Railway Prefabricated Parts Manufacturing Co ltd
Current assignee: Raoyang Junyu Railway Prefabricated Parts Manufacturing Co ltd
Priority date: 2021-08-09
Filing date: 2021-08-09
Publication date: 2021-12-31
Anticipated expiration: 2031-08-09

Abstract

The utility model provides a long-life metal corrugated pipe which is used for conveying liquid media, wherein the upper part of a corrugated pipe body is provided with a plurality of wear-resistant parts, and the wear-resistant parts are arranged in the axial direction of the upper part of the corrugated pipe body; the circumferential direction of the upper part of the wear-resistant part is uniformly provided with grooves for reducing the contact between the corrugated pipe body and the ground. The wear-resistant part and the groove are arranged on the upper part of the corrugated pipe body, so that the contact area of the corrugated pipe body and the ground is effectively reduced, the wear rate of the corrugated pipe body is slowed down, and the service life of the corrugated pipe body can be prolonged.

Description

Long-life metal bellows

Technical Field

The utility model relates to the technical field of corrugated pipes, in particular to a long-service-life metal corrugated pipe.

Background

In the prior art, the metal corrugated pipe is frequently contacted with the ground to generate friction, so that the surface of the metal corrugated pipe is excessively abraded due to friction, and the service life of the metal corrugated pipe is greatly shortened.

The technical scheme of patent No. ZL201520267523.2 is that a high-pressure wear-resistant metal hose comprises a flexible metal connecting pipe and connectors arranged at two ends of the metal connecting pipe, wherein each connector consists of a plane connector and a loop nut and plays a role in connection; the flexible metal connecting pipe comprises a metal wire mesh layer, a metal corrugated pipe layer and a wear-resistant layer, the metal wire mesh layer is wrapped on the outer wall of the metal corrugated pipe layer, the metal wire mesh layer and the metal corrugated pipe layer are fixedly connected with the connector in a welding mode and are hooped tightly through the lantern ring, and the wear-resistant layer is a spring sheath. The compression resistance can be effectively improved by wrapping one or more layers of metal wire mesh layers on the periphery of the metal corrugated pipe layer; the wear-resistant layer is arranged on the inner side of the metal corrugated pipe layer or on the outer side of the metal wire mesh layer, so that the protection effect can be achieved, and the abrasion damage of solid particles to the inner wall or the outer wall of the pipe fitting can be avoided. However, the problem of wear resistance of the metal corrugated pipe is solved theoretically, but the welding mode of the metal wire mesh layer limits the stretching function of the metal corrugated pipe, the spring sheath can greatly increase the whole weight of the metal corrugated pipe, and the friction force depends on the gravity of the metal corrugated pipe, so the technical scheme can not fundamentally solve the wear of the metal corrugated pipe, but accelerates the wear of the metal wire mesh layer and the spring sheath, sacrifices multiple performance indexes of the metal corrugated pipe, and has poor technical effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem of how to prolong the service life of the metal corrugated pipe

In order to solve the technical problems, the utility model provides a long-life metal corrugated pipe which is used for conveying a liquid medium, wherein the upper part of a corrugated pipe body is provided with a plurality of wear-resistant parts, and the wear-resistant parts are arranged in the axial direction of the upper part of the corrugated pipe body; the circumferential direction of the upper part of the wear-resistant part is uniformly provided with grooves for reducing the contact between the corrugated pipe body and the ground.

The wear-resistant part and the groove are arranged on the upper part of the corrugated pipe body, so that the contact area of the corrugated pipe body and the ground is effectively reduced, the wear rate of the corrugated pipe body is slowed down, and the service life of the corrugated pipe body can be prolonged.

Drawings

Fig. 1 is a schematic view of the overall structure of a long-life metal corrugated pipe.

In the figure: 1. a wear-resistant portion; 2. a groove; 3. a reinforcing portion.

Detailed Description

The utility model relates to a long-life metal corrugated pipe, which comprises a corrugated pipe body and a wear-resisting part as shown in figure 1. The bellows body is used for carrying liquid medium, and wear-resisting portion is used for promoting bellows life.

As shown in fig. 1, the corrugated pipe body has a plurality of wear-resistant portions 1 arranged uniformly in the axial direction of the upper portion thereof, the wear-resistant portions 1 are uniformly provided with grooves 2 in the circumferential direction of the upper portion thereof, the wear-resistant portions 1 are used for reducing the contact between the corrugated pipe body and the ground, and the grooves 2 are used for reducing the contact between the wear-resistant portions 1 and the ground.

As shown in fig. 1, the upper portion of the wear-resistant portion 1 is provided with a wear-resistant coating, and the material of the wear-resistant coating may be various alloy materials, such as nickel-tungsten alloy, self-fluxing alloy, and the like. Preferably, as shown in fig. 1, the wear-resistant coating is made of nichrome, and the wear-resistant coating is used for improving the hardness and wear resistance of the wear-resistant portion 1.

As shown in fig. 1, a plurality of wear-resistant portions 1 have a plurality of reinforcing portions 3 uniformly arranged therebetween, and the reinforcing portions 3 may have various shapes, such as a triangle, a hemisphere, a prism, and the like. Preferably, the reinforcing portion 3 is a semi-elliptical shape, as shown in fig. 1. The reinforcing part 3 is spirally wound on the upper part of the corrugated pipe body and is used for enhancing the tensile strength of the corrugated pipe body.

When the corrugated pipe is needed, the corrugated pipe body is placed on the upper portion of the ground, the wear-resistant portion 1 is made to be in contact with the ground, and the corrugated pipe body can be properly stretched through the required length. At this moment, wearing part 1 contacts with ground, thereby the bellows body and carrying out too much contact have been avoided, the wearing and tearing of bellows body have been slowed down, and the recess 2 that 1 upper portion of wearing part evenly set up, be used for reducing the area of contact between wearing part 1 and the ground, thereby slow down wearing part 1's rate of wear, and the 1 outside nichrome wear-resistant coating of wearing part, be used for promoting wearing part 1's hardness and wearability, thereby further promote wearing part 1's wearability, and half oval-shaped rib 3 arranges on bellows body upper portion with spiral winding's mode, the effectual whole tensile strength who promotes the bellows body, setting through wearing part 1 and rib 3, thereby the life of bellows has been prolonged effectively.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides a long-life metal bellows for carry liquid medium, bellows body upper portion has a plurality of wearing parts (1), its characterized in that: the wear-resistant part (1) is arranged in the axial direction of the upper part of the corrugated pipe body; the circumferential direction of the upper part of the wear-resistant part (1) is uniformly provided with grooves (2) for reducing the contact between the corrugated pipe body and the ground.

2. The long life metal bellows of claim 1, wherein: the upper part of the wear-resistant part (1) is provided with a wear-resistant coating for improving the hardness and the wear resistance of the wear-resistant part (1).

3. The long life metal bellows of claim 2, wherein: the wear-resistant coating is made of nickel-chromium alloy.

4. A long life metal bellows as claimed in any one of claims 1 to 3, wherein: be provided with between wear-resisting portion (1) and be used for strengthening bellows body tensile strength's rib (3), rib (3) are the heliciform and wind in bellows body upper portion.

5. The long life metal bellows of claim 4, wherein: the shape of the reinforcing part (3) is a semi-ellipse.