CN210950235U

CN210950235U - Reinforced concrete conveying pump pipe

Info

Publication number: CN210950235U
Application number: CN201922058563.7U
Authority: CN
Inventors: 刘晓
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-07-07
Anticipated expiration: 2029-11-26

Abstract

The utility model discloses a strenghthened type concrete pump line, including the conveyer pipe body, the both ends of conveyer pipe body are provided with entrance point flange ring and exit end flange ring respectively, the inboard of entrance end flange ring is inlayed and is equipped with wear-resisting cover, the inboard of conveyer pipe body takes shape through thermal treatment's mode has the wearing layer, the wearing layer is including the thick wearing layer that is located the import side, the thin wearing layer that is located the outlet side and the transition wearing layer that is located between thick wearing layer and the thin wearing layer, the outside cover of import side of conveyer pipe body is equipped with the protecting tube, the position of protecting tube with the position of thick wearing layer and transition wearing layer is corresponding. The utility model discloses an increase the thickness of wearing layer in entrance point one side, great improvement the impact resistance of its entrance point to externally be provided with the protecting tube simultaneously, play the effect of protection, avoid appearing because the toughness of conveyer pipe body self reduces and the pipe explosion phenomenon that appears.

Description

Reinforced concrete conveying pump pipe

Technical Field

The utility model relates to a concrete pump line technical field especially relates to a strenghthened type concrete pump line.

Background

The concrete pump has the advantages of large conveying capacity, high efficiency, continuous operation, labor saving, construction cost saving and the like, and is widely applied to a plurality of building fields, in the process, the concrete pump pipe is an indispensable conveying medium, the structure of the existing concrete pump pipe is shown in figure 1-2 and comprises a conveying pipe body 1-1, the outer sides of two ends of the conveying pipe body 1-1 are fixedly sleeved with an inlet end flange ring 1-2 and an outlet end flange ring 1-3 respectively in a welding mode, the inner side of the inlet end flange ring 1-2 is embedded with a wear-resistant sleeve 1-4, the inner side of the wear-resistant sleeve 1-4 is abutted against the conveying pipe body 1-1, and the inner diameter of the wear-resistant sleeve 1-4 is equal to the inner diameter of the conveying pipe body 1-1, the inner side of the conveying pipe body 1-1 is provided with the wear-resistant layer 1-5, the wear-resistant layer 1-5 is formed by directly re-forming the inner side of the conveying pipe body 1-1 in a heat treatment mode, the thickness of the conveying pipe body 1-1 is generally 5mm, the thickness of the wear-resistant layer 1-5 is 3mm, the thickness of the part which is not subjected to heat treatment is 2mm, and therefore the part which is not subjected to heat treatment is 2mm, the reason is that if the whole conveying pipe body 1-1 is subjected to heat treatment, although the impact resistance is further improved, the toughness of the conveying pipe body is greatly reduced, after the conveying pipe body is arranged on a pump truck, the pipe is exploded due to too large pressure, a certain part which is not subjected to heat treatment must be reserved to avoid the pipe explosion, meanwhile, due to larger inlet end impact force, the pipe wall is greatly abraded, the wear-resistant layer with the thickness of 3mm often cannot meet the requirement of good impact resistance, and the service life is short, so the structure of the existing concrete conveying pump pipe needs to be improved urgently, the impact resistance of the inlet end of the concrete conveying pump pipe is further improved, and the service life of the concrete conveying pump pipe is prolonged.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to avoid prior art's weak point, provide a strenghthened type concrete feeding pump line to effectively solve the weak point that exists among the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a strenghthened type concrete pump delivery pipe, includes the conveyer pipe body, the both ends of conveyer pipe body are provided with entrance point flange ring and exit end flange ring respectively, the inboard of entrance end flange ring is inlayed and is equipped with wear-resisting cover, the inboard of conveyer pipe body is formed with the wearing layer through thermal treatment's mode, the wearing layer is including the thick wearing layer that is located the import side, the thin wearing layer that is located the outlet side and the transition wearing layer that is located between thick wearing layer and the thin wearing layer, the outside cover of import side of conveyer pipe body is equipped with the protecting tube, the position of protecting tube with the position of thick wearing layer and transition wearing layer is corresponding.

Furthermore, the one end and the entrance point flange ring welded connection of protective tube, the other end and the surface welded connection of conveyer pipe body of protective tube.

Further, the thickness of thick wearing layer is equal to the thickness of conveyer pipe body.

Further, the thickness of the thin wear-resistant layer is 3/5 the thickness of the conveying pipe body.

Further, the inner diameter of the protective pipe is equal to the outer diameter of the conveying pipe body.

Further, the material of the protective tube is 16 Mn.

The above technical scheme of the utility model following beneficial effect has: the utility model discloses an increase the thickness of wearing layer in entrance point one side, great improvement the impact resistance of its entrance point to externally be provided with the protecting tube simultaneously, play the effect of protection, avoid appearing because the toughness of conveyer pipe body self reduces and the pipe explosion phenomenon that appears.

Drawings

FIG. 1 is a schematic structural diagram of a concrete pump pipe in the prior art;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic structural diagram of an embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at B;

FIG. 5 is an enlarged view of a portion of FIG. 3 at C;

fig. 6 is a partially enlarged view of fig. 3 at D.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 3-6, the reinforced concrete pump pipe described in this embodiment includes a conveying pipe body 1, both ends of the conveying pipe body 1 are respectively provided with an inlet end flange ring 2 and an outlet end flange ring 3, the outlet end flange ring 2 is welded to the conveying pipe body 1, the inner side of the inlet end flange ring 2 is embedded with a wear-resistant sleeve 4, the wear-resistant sleeve 4 is in interference fit with the inlet end flange ring 2, the inner side of the conveying pipe body 1 is formed with a wear-resistant layer through a heat treatment mode, i.e. the wear-resistant layer is a part of the conveying pipe body 1, the above-mentioned structure is the prior art, in order to improve the impact resistance of the inlet side of the conveying pipe body 1, the improvement of:

divide into the triplex with the wearing layer, it is including the thick wearing layer 5 that is located the import side, be located the thin wearing layer 6 of outlet side and be located thick wearing layer 5 and the transition wearing layer 7 between the thin wearing layer 6, the outside cover of import side of conveyer pipe body 1 is equipped with protective tube 8, protective tube 8's position is corresponding with thick wearing layer 5 and transition wearing layer 7's position, through increasing the thickness of wearing layer in entrance point one side, great improvement the shock resistance of its entrance point, and be provided with protective tube 8 externally simultaneously, play the effect of protection, avoid appearing because the toughness of conveyer pipe body reduces and the pipe explosion phenomenon that appears.

One end of the protective pipe 8 is connected with the inlet end flange ring 2 in a welding mode, and the other end of the protective pipe 8 is connected with the outer surface of the conveying pipe body 1 in a welding mode.

Preferably, the thickness of the thick wear-resistant layer 5 is equal to the thickness of the conveying pipe body 1, that is, the conveying pipe body 1 on the inlet side forms the wear-resistant layer from inside to outside through a heat treatment mode.

The thickness of the thin wear-resistant layer 6 is 3/5 of the thickness of the conveying pipe body 1, namely the conveying pipe body 1 outside the thin wear-resistant layer 6 is not subjected to heat treatment, certain toughness is still kept, and the parameter requirement of preventing pipe explosion can be achieved.

The inner diameter of the protective tube 8 is equal to the outer diameter of the delivery tube body 1.

The material of protective pipe 8 is 16Mn, and the material of inlet end flange ring 2 and outlet end flange ring 3 is also 16Mn, and the material of conveyer pipe body 1 is 55Mn, and the material of wear-resisting cover 4 is high chromium cast iron.

The structure of the present application is further described with reference to specific embodiments with parameters, as shown in fig. 3, in the structure, the length of the conveying pipe body 1 is 4000mm, the inner diameter of the conveying pipe body 1 is 123mm, the outer diameter of the conveying pipe body 1 is 133mm, that is, the thickness of the conveying pipe body 1 is 5mm, the lengths of the inlet end flange ring 2 and the outlet end flange ring 3 are both 45mm, the length of the wear-resistant sleeve 4 is 35mm, the thickness of the thick wear-resistant layer 5 is 5mm, and the thickness of the thin wear-resistant layer 6 is 3mm, that is, as described in the background art, the outer side of the thin wear-resistant layer 6 is further provided with an untreated portion 2mm later to ensure its toughness and perform an explosion-proof function, wherein the length of the thick wear-resistant layer 5 is 300mm, the length of the transition wear-resistant layer 7 is 100mm, and the length of the protective pipe 8 is 400 mm.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides a strenghthened type concrete pump line, includes the conveyer pipe body, the both ends of conveyer pipe body are provided with entrance end flange ring and exit end flange ring respectively, the inboard of entrance end flange ring is inlayed and is equipped with wear-resisting cover, the inboard of conveyer pipe body is formed with wearing layer, its characterized in that through the mode of thermal treatment: the wearing layer is including the thick wearing layer that is located the import side, the thin wearing layer that is located the outlet side and the transition wearing layer that is located between thick wearing layer and the thin wearing layer, the outside cover of import side of conveyer pipe body is equipped with the protective tube, the position of protective tube with the position of thick wearing layer and transition wearing layer is corresponding.

2. The reinforced concrete conveying pump pipe of claim 1, wherein: one end of the protective pipe is connected with the inlet end flange ring in a welding mode, and the other end of the protective pipe is connected with the outer surface of the conveying pipe body in a welding mode.

3. The reinforced concrete conveying pump pipe of claim 1, wherein: the thickness of thick wearing layer equals the thickness of conveyer pipe body.

4. The reinforced concrete conveying pump pipe of claim 1, wherein: the thickness of the thin wear-resistant layer is 3/5 the thickness of the conveying pipe body.

5. The reinforced concrete conveying pump pipe of claim 1, wherein: the inner diameter of the protective pipe is equal to the outer diameter of the conveying pipe body.

6. The reinforced concrete conveying pump pipe of claim 1, wherein: the material of the protective tube is 16 Mn.