CN211040086U

CN211040086U - Sintering machine bellows expansion joint

Info

Publication number: CN211040086U
Application number: CN201921172727.2U
Authority: CN
Inventors: 徐宏亮
Original assignee: Jiangsu Jinshuo Metallurgical Technology Co ltd
Current assignee: Jiangsu Jinshuo Metallurgical Technology Co ltd
Priority date: 2019-07-24
Filing date: 2019-07-24
Publication date: 2020-07-17
Anticipated expiration: 2029-07-24

Abstract

The utility model discloses a sintering machine bellows expansion joint, which comprises a roof, roof lower extreme fixedly connected with expansion pipe, the inside fixed spring that is provided with of expansion pipe, a plurality of small-size fixed plates of spring outside end fixedly connected with, a plurality of small-size fixed plate fixed connection are on the expansion pipe inner wall, expansion pipe lower extreme fixedly connected with bottom plate, be provided with a plurality of telescopic links between bottom plate and the roof, lower extreme difference fixed connection is on bottom plate and roof on a plurality of telescopic links, a plurality of fixed orificess have all been seted up on roof and the bottom plate, be provided with the assembly plate No. one on the roof, No. one assembly plate upper end fixed connection leads to the tuber pipe, the roof lower extreme is provided with a plurality of bolts, roof and assembly plate side are equipped with the fixation clamp. The utility model discloses simple structure, convenient assembling, the during operation expansion joint can be according to the automatic flexible of atress condition, rather than the inflation dwindles, has reduced the wearing and tearing of expansion joint, the cost is reduced.

Description

Sintering machine bellows expansion joint

Technical Field

The utility model relates to an expansion joint field especially relates to a sintering machine bellows expansion joint.

Background

An expansion joint refers to a flexible element that effectively functions to compensate for axial deformation. For example, the expansion joint welded on the shell of the fixed tube-plate heat exchanger has large axial flexibility and easy deformation, can compensate the thermal expansion difference generated by the tube and the shell due to different wall temperatures, and reduces the axial load of the tube and the shell, thereby reducing the temperature difference stress of the tube, the tube plate and the shell and avoiding causing strength damage, instability damage and tube pull-out damage. The expansion joint has many kinds, and the common structures include wave, ring plate welding, clamping shell type and the like, wherein the wave expansion joint is most widely applied, and the ring plate welding expansion joint is only suitable for normal pressure or low pressure occasions.

The expansion joints used by sintering machine bellows of equipment governed by an iron-making sintering workshop at present are two in number, when the expansion joints work, the expansion joints are expanded or reduced to compensate deformation generated when a pipeline is heated, and because the expansion joints are swept by high-temperature and high-pressure airflow for a long time, the expansion joints are often expanded and reduced, the expansion joints are seriously worn after being used for a long time, a repair welding backpack can only be carried out after damage, the repair welding backpack can only be maintained for a short time, the repair can not be continued after damage again, only the expansion joints can be replaced after being scrapped, and the production cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an expansion joint of an air box of a sintering machine.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a sintering machine bellows expansion joint, includes the roof, roof lower extreme fixedly connected with expansion pipe, the inside fixed spring that is provided with of expansion pipe, a plurality of small-size fixed plates of spring outside end fixedly connected with, a plurality of small-size fixed plate fixed connection are on the expansion pipe inner wall, expansion pipe lower extreme fixedly connected with bottom plate, be provided with a plurality of telescopic links between bottom plate and the roof, lower extreme difference fixed connection is on bottom plate and roof on a plurality of telescopic links, all seted up a plurality of fixed orificess on roof and the bottom plate, be provided with assembly plate No. one on the roof, assembly plate upper end fixed connection one leads to the tuber pipe No. one, the roof lower extreme is provided with a plurality of bolts, roof and assembly plate side are equipped with the fixation clamp, the fixation clamp wraps roof and assembly plate No. one, the bolt runs through fixation clamp lower extreme, bolt, The bolt comprises a fixing hole, an assembly plate and a fixing clamp, wherein the upper end of the bolt is meshed with a nut, the lower end of the bottom plate is provided with No. two assembly plates, the lower end of the No. two assembly plates is fixedly connected with No. two ventilation pipes, and the bottom plate and the No. two assembly plates are connected with a top plate and an assembly plate.

As a further description of the above technical solution:

the spring is made of high-temperature-resistant and high-extensibility materials, and the upper end and the lower end of the spring are fixedly connected to the inner wall of the expansion pipe.

As a further description of the above technical solution:

the top plate and the bottom plate have the same specification and are both arranged in a circular plate shape.

As a further description of the above technical solution:

the number of the telescopic rods is three, and the three telescopic rods are arranged on the lower end face of the top plate in a trisection mode.

As a further description of the above technical solution:

the fixing holes formed in the top plate and the bottom plate are four, the four fixing holes are formed in the quadrant points of the sides of the top plate and the bottom plate respectively, and the first assembling plate and the second assembling plate are also provided with corresponding holes.

As a further description of the above technical solution:

the side wall of the expansion pipe is arranged in a wavy shape, and the wavy convex part is made of soft metal.

The utility model discloses following beneficial effect has:

the utility model discloses in be equipped with the expansion pipe, be equipped with the spring rather than fixed connection in the expansion pipe, the expansion pipe lateral wall designs into the wave type, and be equipped with many fixed connection's telescopic link between roof and the bottom plate, design like this when making machine working pipeline be heated the inflation, the power of production transmits during the inflation, after the expansion pipe atress, inside spring can be compressed, the expansion pipe lateral wall is also compressed, whole expansion joint is compressed rather than the inflation, this has avoided the expansion pipe to expand to reduce greatly, the effectual wearing and tearing condition that has reduced has increased life, and the cost is saved.

Drawings

FIG. 1 is a schematic diagram of the basic mechanism of an expansion joint of a sintering machine bellows provided by the present invention;

FIG. 2 is a top view of an expansion joint of a sintering machine bellows according to the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 1;

fig. 4 is an enlarged view at B in fig. 1.

Illustration of the drawings:

1. a top plate; 2. an expansion tube; 3. a spring; 4. a small-sized fixing plate; 5. a base plate; 6. a telescopic rod; 7. A bolt; 8. a fixing clip; 9. a nut; 10. a fixing hole; 11. a first mounting plate; 12. a first ventilation pipe; 13. a second assembling plate; 14. and a second vent pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the present invention provides an embodiment: an expansion joint of a sintering machine air box comprises a top plate 1, wherein the lower end of the top plate 1 is fixedly connected with an expansion pipe 2, a spring 3 is fixedly arranged inside the expansion pipe 2, the outer side end of the spring 3 is fixedly connected with a plurality of small fixing plates 4, the small fixing plates 4 are fixedly connected on the inner wall of the expansion pipe 2, the lower end of the expansion pipe 2 is fixedly connected with a bottom plate 5, a plurality of telescopic rods 6 are arranged between the bottom plate 5 and the top plate 1, the upper ends and the lower ends of the telescopic rods 6 are respectively and fixedly connected on the bottom plate 5 and the top plate 1, the telescopic rods 6 can adjust the distance between the top plate 1 and the bottom plate 5 and can also prevent the dislocation of the two plates, a plurality of fixing holes 10 are respectively arranged on the top plate 1 and the bottom plate 5, a first assembling plate 11 is arranged on the top plate 1, a one-way air pipe 12 is fixedly connected at the upper, roof 1 and assembly plate 11 are lived to the 8 parcel of fixation clamp, and bolt 7 runs through 8 lower extremes of fixation clamp, fixed orifices 10, assembly plate 11 and the 8 upper ends of fixation clamp in proper order, and the meshing of 7 upper ends of bolt is connected with

nut

9, and 5 lower extremes of bottom plate are provided with assembly plate 13 No. two, and No. two ventilation pipe 14 of No. two assembly plate 13 lower extreme fixed connection are connected between bottom plate 5 and No. two assembly plate 13 with roof 1 and assembly plate 11.

Spring 3 is by high temperature resistant, high extensibility material is made, and the equal fixed connection of lower extreme is on 2 inner walls of expansion pipe on spring 3, the synchronism of spring 3 and expansion pipe 2 has been guaranteed, roof 1 and the same of bottom plate 5 specification, and all set into the disc, telescopic link 6 is provided with three, and the trisection sets up under roof 1 on the terminal surface, it can firm the connection to set up like this between roof 1 and the bottom plate 5 to have guaranteed, the fixed orifices 10 of seting up on roof 1 and the bottom plate 5 all are equipped with four, set up respectively on the quadrant point of roof 1 and bottom plate 5 avris, and also be equipped with the hole rather than corresponding on assembly plate 11 and No. two assembly plates 13, expansion pipe 2 lateral wall sets up into wavy, and wavy bulge is made by soft metal, make expansion pipe 2 can stretch out and draw back according to the atress condition.

The working principle is as follows: pass through bolt 7 with roof 1 and bottom plate 5, fixed clamp 8 and nut 9 respectively fixed connection on assembly plate 11 and No. two assembly plates 13, machine work, when bellows pipeline received high temperature hot-blast effect, the pipeline is heated the inflation, when the expansive force reaches the inflation festival, compressed behind the expansion pipe 2 atress, inside spring 3 is also compressed, the effect of telescopic link 6 atress is pressed short, whole expansion joint is compressed but not the inflation, after the atress, spring 3 restores to the original position, the expansion joint restores to the original state.

Finally, it should be noted that: 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 and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a sintering machine bellows expansion joint, includes roof (1), its characterized in that: the expansion pipe (2) is fixedly connected to the lower end of the top plate (1), the spring (3) is fixedly arranged inside the expansion pipe (2), a plurality of small fixing plates (4) are fixedly connected to the outer side end of the spring (3), the small fixing plates (4) are fixedly connected to the inner wall of the expansion pipe (2), the bottom plate (5) is fixedly connected to the lower end of the expansion pipe (2), a plurality of telescopic rods (6) are arranged between the bottom plate (5) and the top plate (1), the upper ends and the lower ends of the telescopic rods (6) are respectively fixedly connected to the bottom plate (5) and the top plate (1), a plurality of fixing holes (10) are formed in the top plate (1) and the bottom plate (5), a first assembling plate (11) is arranged on the top plate (1), a first air through pipe (12) is fixedly connected to the upper end of the first assembling plate (11), a plurality of bolts (7) are arranged at the, roof (1) and assembly plate (11) side are equipped with fixation clamp (8), roof (1) and assembly plate (11) are lived in fixation clamp (8) parcel, bolt (7) run through fixation clamp (8) lower extreme, fixed orifices (10), assembly plate (11) and fixation clamp (8) upper end in proper order, bolt (7) upper end meshing is connected with nut (9), bottom plate (5) lower extreme is provided with assembly plate (13) No. two, No. two ventilation pipe (14) of assembly plate (13) lower extreme fixed connection No. two, be connected between bottom plate (5) and assembly plate (13) with roof (1) and assembly plate (11) No. two.

2. The sintering machine windbox expansion joint according to claim 1, characterized in that: the spring (3) is made of high-temperature-resistant and high-extensibility materials, and the upper end and the lower end of the spring (3) are fixedly connected to the inner wall of the expansion pipe (2).

3. The sintering machine windbox expansion joint according to claim 1, characterized in that: the top plate (1) and the bottom plate (5) are the same in specification and are both in a circular plate shape.

4. The sintering machine windbox expansion joint according to claim 1, characterized in that: the number of the telescopic rods (6) is three, and the three telescopic rods are arranged on the lower end face of the top plate (1) in a trisection mode.

5. The sintering machine windbox expansion joint according to claim 1, characterized in that: the fixing holes (10) formed in the top plate (1) and the bottom plate (5) are four in number, the fixing holes are respectively formed in the image limit points of the sides of the top plate (1) and the bottom plate (5), and the first assembling plate (11) and the second assembling plate (13) are also provided with corresponding holes.

6. The sintering machine windbox expansion joint according to claim 1, characterized in that: the side wall of the expansion pipe (2) is arranged in a wavy shape, and the wavy convex part is made of soft metal.