CN213298392U

CN213298392U - High-sealing impeller connecting structure

Info

Publication number: CN213298392U
Application number: CN202022243925.2U
Authority: CN
Inventors: 陆锋
Original assignee: Yueneng Suzhou Power Technology Co ltd
Current assignee: Yueneng Suzhou Power Technology Co ltd
Priority date: 2020-10-10
Filing date: 2020-10-10
Publication date: 2021-05-28
Anticipated expiration: 2030-10-10

Abstract

The application discloses high sealed impeller connection structure, including the output axis body and output axis body fixed connection's impeller, the impeller through first bolt fixed connection in output axis body terminal surface, the output axis body supports in two first flanges that set up relatively, first flange with rotate through the bearing between the output axis body and connect, this two first flange fixed mounting in the frame simultaneously, the output axis body outside in the impeller with fixedly connected with second flange and third flange in proper order between the first flange, second flange is connected with first oil blanket flange and second oil blanket flange respectively with the third flange inboard, the output axis body passes in proper order first oil blanket flange and second oil blanket flange axle center. The utility model discloses it is fixed mutually between the outer ring of fixed and bearing of being connected of two sealing flange through a plurality of flanges, realizes high sealing connection, can not have the greasy dirt to leak when the high-speed rotation of output axis body.

Description

High-sealing impeller connecting structure

Technical Field

The application relates to MVR motor drive, in particular to high seal impeller connection structure.

Background

The multiple recycle of secondary steam is equipped to state widely promotes now, in secondary steam retrieves and equips, generally need use motor drive impeller structure, how to export impeller stable in structure the problem of each enterprise's research always.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high sealed impeller connection structure.

In order to achieve the above object, the present invention provides the following technical solutions.

The embodiment of the application discloses high sealed impeller connection structure, including the output axis body and output axis body fixed connection's impeller, the impeller through first bolt fixed connection in output axis body terminal surface, the output axis body supports in two first flanges of relative setting, first flange with rotate through the bearing between the output axis body and connect, this two first flange fixed mounting in the frame simultaneously, the output axis body outside in the impeller with fixedly connected with second flange and third flange in proper order between the first flange, second flange is connected with first oil blanket flange and second oil blanket flange respectively with the third flange inboard, the output axis body passes in proper order first oil blanket flange and second oil blanket flange axle center.

Preferably, in the above high-sealing impeller connecting structure, the first oil seal flange is fixedly mounted to the second flange by a plurality of second bolts arranged in a circumferential direction.

Preferably, in the high-seal impeller connecting structure, the second flange is fixedly attached to the third flange by a plurality of third bolts arranged in a circumferential direction.

Preferably, in the above high-sealing impeller connecting structure, the second oil sealing flange is fixedly mounted to the third flange by a plurality of fourth bolts arranged in a circumferential direction.

Preferably, in the high-sealing impeller connecting structure, the third flange is formed on a side of the housing.

Preferably, in the above high-sealing impeller connecting structure, first annular air chambers are formed inside the first oil sealing flange along the axial direction, and the first annular air chambers are formed with first slopes inclined toward the impeller.

Preferably, in the high-sealing impeller connecting structure, a first gap is formed between an inner side surface of the first annular air cavity and the output shaft body.

Compared with the prior art, this technical scheme direct fixed connection of impeller is in the output axis body, and the output axis body is installed in the bearing, realizes sealedly through two sealing flange between impeller and the bearing, and two sealing flange are fixed mutually between the outer ring of fixed and bearing of being connected through a plurality of flanges, realize high sealing connection, can not have the greasy dirt when the output axis body rotates at a high speed and leak.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic view of a high-sealing impeller connection structure according to an embodiment of the present invention;

fig. 2 shows an enlarged view of fig. 1 at circle a.

Detailed Description

The technical solutions in the embodiments of the present invention will be described in detail below 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 efforts 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified 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. 1-2, a high-sealing impeller connection structure 100 includes an output shaft 101 and an impeller 102 fixedly connected to the output shaft 101, the impeller 102 is fixedly connected to an end surface of the output shaft 101 through a first bolt 103, the output shaft 101 is supported by two first flanges 104 disposed opposite to each other, the first flanges 104 are rotatably connected to the output shaft 101 through a bearing 105, the two first flanges 104 are simultaneously and fixedly mounted on a frame 106, a second flange 107 and a third flange 108 are sequentially and fixedly connected to an outer side of the output shaft 101 between the impeller 102 and the first flanges 104, inner sides of the second flange 107 and the third flange 108 are respectively connected to a first oil seal flange 300 and a second oil seal flange 200, and the output shaft 101 sequentially passes through an axis of the first oil seal flange 300 and an axis of the second oil seal flange 200. The first oil seal flange 300 is fixedly mounted to the second flange 107 by a plurality of second bolts 111 arranged in a circumferential direction. The second flange 107 is fixedly attached to a third flange 108 by a plurality of third bolts 109 arranged in a circumferential direction. The second oil seal flange 200 is fixedly mounted to the third flange 108 by a plurality of fourth bolts 110 arranged in a circumferential direction. A third flange 108 is formed on one side of the frame 106.

In this embodiment, the direct fixed connection of impeller is in the output axis body, and the output axis body is installed in the bearing, realizes sealed through two sealing flange between impeller and the bearing, and two sealing flange are fixed mutually through the outer ring of the fixed and bearing of being connected of a plurality of flanges, realize high sealing connection, can not have the greasy dirt when the high-speed rotation of output axis body and leak.

Further, a first annular air chamber 301 is formed inside the first oil sealing flange 300 along the axial direction, and the first annular air chamber 301 is formed with a first slope 302 inclined toward the impeller 102.

In this embodiment, when the output axis body rotates at a high speed, driven the flow of surrounding gas, form the high pressure in the annular air cavity, stopped the greasy dirt and leaked, the existence on first slope has made things convenient for high-pressure gas to the effect of lubricating oil, further prevents the greasy dirt discharge.

Further, a first gap 303 is formed between the inner side surface of the first annular air chamber 301 and the output shaft body 101.

In this embodiment, mechanical friction is prevented from damaging the output shaft.

Further, the second oil sealing flange 200 is installed outside the bearing 105 and used for preventing oil leakage of the bearing 105, an output shaft body 101 is arranged in the inner ring of the bearing 105, the output shaft body 101 penetrates through the axis of the second oil sealing flange 200, second annular air chambers 201 which are uniformly arranged are formed in the inner side of the second oil sealing flange 200 along the axial direction, each second annular air chamber 201 comprises a second air storage chamber 202 which deviates from the output shaft body 101 and a second air guide chamber 203 which is close to the output shaft body 101, each second air guide chamber 203 is formed with a second slope 204 which inclines towards the bearing 105 from the second air storage chamber 202, each second air guide chamber 203 is formed between two adjacent annular baffle plates 206, an annular hook body 207 which protrudes towards the outer side of the bearing 105 is formed at the inner end of the annular baffle plate 206 which is close to the bearing 105, an annular convex body 208 which is attached to the annular hook body 207 is formed on the outer surface of the output shaft body 101. The end surface of the annular convex body 208 near the bearing 105 is perpendicular to the axial direction of the output shaft body 101. The end surface of the annular projection 208 facing away from the bearing 105 is inclined outward of the bearing 105 from the output shaft body 101. The second oil seal flange 200 is fixedly mounted to the third flange 108 by a plurality of fourth bolts 110 arranged circumferentially.

In the embodiment, after the output shaft body rotates at a high speed, the surrounding gas is driven to flow, and due to the existence of the second annular gas cavity, the gas forms high pressure in the second annular gas cavity in the process that the output shaft body does not stop rotating, so that the outflow of bearing lubricating oil is prevented; because the second air guide cavity forms a slope inclined towards the bearing, the effect of high-pressure gas on lubricating oil is facilitated, sealing is further ensured, and the lubricating oil is prevented from being discharged. The existence of the annular convex body and the annular hook body prevents the oil stain from flowing out and into the oil stain box in a static state, and further ensures the sealing.

Further, a second gap 205 is formed between the inner side surface of the second air guide cavity 203 and the output shaft body 101.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing is directed to embodiments of the present application and it is noted that numerous modifications and adaptations may be made by those skilled in the art without departing from the principles of the present application and are intended to be within the scope of the present application.

Claims

1. The utility model provides a high sealed impeller connection structure, its characterized in that, including the output axis body and output axis body fixed connection's impeller, the impeller through first bolt fixed connection in output axis body terminal surface, the output axis body supports in two first flanges that set up relatively, first flange with rotate through the bearing between the output axis body and connect, these two first flange fixed mounting in the frame simultaneously, the output axis body outside in the impeller with fixedly connected with second flange and third flange in proper order between the first flange, second flange and third flange inboard are connected with first oil blanket flange and second oil blanket flange respectively, the output axis body passes in proper order first oil blanket flange and second oil blanket flange axle center.

2. The high seal impeller connection structure as claimed in claim 1, wherein the first oil seal flange is fixedly mounted to the second flange by a plurality of second bolts arranged in a circumferential direction.

3. The high seal impeller connection structure as claimed in claim 1, wherein the second flange is fixedly mounted to the third flange by a plurality of third bolts arranged in a circumferential direction.

4. The high seal impeller connection structure as claimed in claim 1, wherein the second oil seal flange is fixedly mounted to the third flange by a plurality of fourth bolts arranged in a circumferential direction.

5. The high seal impeller connection structure as claimed in claim 1, wherein the third flange is formed at one side of the housing.

6. The high-sealing impeller connecting structure according to claim 1, wherein first annular air chambers are formed on the inner side of the first oil sealing flange in an axial direction, and are uniformly arranged, and the first annular air chambers are formed with first slopes inclined toward the impeller.

7. The high seal impeller attachment structure according to claim 6, wherein a first clearance is formed between an inner side surface of the first annular air chamber and the output shaft body.