CN214577829U

CN214577829U - Special eccentric seal cover for centrifugal blower bearing

Info

Publication number: CN214577829U
Application number: CN202120514985.5U
Authority: CN
Inventors: 焦杰; 贾雪鹏
Original assignee: Shanxi Tongcai Industry and Trade Co Ltd
Current assignee: Shanxi Tongcai Industry and Trade Co Ltd
Priority date: 2021-03-11
Filing date: 2021-03-11
Publication date: 2021-11-02
Anticipated expiration: 2031-03-11

Abstract

The utility model discloses a centrifugal blower bearing seals inclined to one side lid is exclusively used in, including a center section of thick bamboo, sunken in the port of a center section of thick bamboo has the bearing groove of annular shape, and the bearing is installed to the bearing inslot, and the bearing interpolation is equipped with the pivot that transversely runs through and concentric rigid coupling, and the inner end of pivot runs through and stretches into to a center section of thick bamboo in, and the outer terminal surface that is located a center section of thick bamboo is equipped with the closing cap ring in the pivot, and the bearing is hugged closely to the interior terminal surface of closing cap ring, and installs lubricated subassembly in the closing cap ring. The utility model discloses a cooperation of each subassembly is used, has solved the bearing and has sealed not tight and lubricated inconvenient problem partially to the lid, and through the double seal effect, effectively prevents the emergence of lubricating oil leakage trouble, guarantees its sealed effect, improves the life of bearing cap and the operating efficiency of equipment.

Description

Special eccentric seal cover for centrifugal blower bearing

Technical Field

The utility model relates to a centrifugal blower technical field especially relates to a centrifugal blower bearing seals inclined to one side lid is exclusively used in.

Background

One end of a rotating shaft of the centrifugal blower is connected with a gear, the other end of the rotating shaft penetrates through the stator and enters the volute to be connected with the impeller, and because a gap exists between the rotating shaft and the stator, when the centrifugal blower operates, gas in the gear box leaks into the volute through the gap between the rotating shaft and the stator,

the current condition, the seal groove gap seal of former centrifugal compressor rotor bearing inclined to one side lid, the long-time running gap is too big, can not guarantee the seepage problem of lubricating oil, and the oil extraction hole undersize, the oil extraction is not smooth and easy, reaches accurate sealed and effective operation.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art, and providing a special eccentric sealing cover for a bearing of a centrifugal blower.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a centrifugal blower bearing seal inclined to one side lid is exclusively used in, includes a central section of thick bamboo, a central section of thick bamboo is the horizontal hollow tube-shape of placing, sunken annular bearing groove in the port of a central section of thick bamboo, the bearing is installed to the bearing inslot, the bearing interpolation is equipped with the pivot of transversely running through and concentric rigid coupling, just the inner end of pivot runs through and stretches into to a central section of thick bamboo in, and the outer terminal surface that is located a central section of thick bamboo is equipped with the closing cap ring in the pivot, the bearing is hugged closely to the interior terminal surface of closing cap ring, just lubricating component is installed to the closing cap intra-annular.

Preferably, the inner wall of the central cylinder, which is positioned at the inner side of the bearing groove, is sleeved with a ladder-shaped ring which is concentrically and fixedly connected, the inner wall of the central cylinder, which is positioned between the ladder-shaped ring and the bearing, is sleeved with a sealing ring which is concentrically and fixedly connected, and the ladder-shaped ring and the sealing ring are respectively rotatably sleeved at the inner end of the rotating shaft.

Preferably, the outer end face of the central cylinder is sunken to form an annular fixing groove, a protruding fixing ring is arranged on the outer side of the inner end face of the sealing ring, and the fixing ring is matched and clamped in the annular fixing groove.

Preferably, the outer side surface of the cover sealing ring is provided with a plurality of fixing bolt holes penetrating through the fixing ring, fixing bolts are inserted into the fixing bolt holes, and the inner ends of the fixing bolts are spirally inserted into the outer end surface of the central cylinder.

Preferably, the lubricating assembly comprises an annular oil cavity, a sealing bolt and a sealing plug, the annular oil cavity is formed in the sealing cover ring, a branch oil hole is formed in the inner end face of the sealing cover ring at a position corresponding to a ball of the bearing, and the branch oil hole is communicated with the annular oil cavity; the top of closing cap ring is equipped with the consent, just the consent is run through with annular oil pocket and is connected, and the outer port that is located the consent is equipped with the nut ring that link up the rigid coupling at the top of closing cap ring, the nut intra-annular is inserted and is equipped with the sealing bolt that the spiral runs through, sealing bolt's bottom is equipped with the sealing plug, just the sealing plug runs through to insert and establishes in the stopcock.

Preferably, the outer side of the inner port of the sealing cover ring is provided with an anti-seepage ring which is concentrically and fixedly connected, the inner end face of the anti-seepage ring is tightly attached to the bearing, the inner wall of the sealing cover ring is sleeved with a carbon steel thin-layer ring which is concentrically and fixedly connected, and the carbon steel thin-layer ring and the anti-seepage ring are respectively rotatably sleeved on the outer end of the rotating shaft.

Compared with the prior art, the beneficial effects of the utility model are that:

1. in the utility model, a proper amount of lubricating oil is added in the annular oil cavity, the lubricating oil lubricates the balls of the bearing along the branch oil holes, and the sealing bolt is matched with the nut ring for screw connection, so that the sealing performance of the sealing plug and the plug hole is improved;

2. in the utility model, the fixing ring is matched and clamped in the annular fixing groove, the fixing bolt is inserted in each fixing bolt hole, the inner end of each fixing bolt is spirally inserted in the outer end surface of the central cylinder, and the sealing performance and the stability of the connection between the sealing cover ring and the central cylinder are improved;

to sum up, the utility model discloses a cooperation of each subassembly is used, has solved the bearing and has sealed not tight and lubricated inconvenient problem partially to the lid, and through the double seal effect, effectively prevents the emergence of lubricating oil leakage trouble, guarantees its sealed effect, improves the life of bearing cap and the operating efficiency of equipment.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limitation. In the drawings:

fig. 1 is a front view of the present invention;

FIG. 2 is a front sectional view of the present invention;

fig. 3 is a right side view of the present invention;

fig. 4 is an enlarged view of a point a in fig. 2 according to the present invention;

number in the figure: the center cylinder 1, the bearing 11, the rotating shaft 12, the ladder-shaped ring 13, the sealing ring 14, the fixing ring 15, the fixing bolt 16, the cover sealing ring 2, the carbon steel thin layer ring 21, the anti-seepage ring 22, the annular oil cavity 23, the branch oil hole 24, the nut ring 25, the sealing bolt 26 and the sealing plug 27.

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.

Example 1: referring to fig. 1-4, a special eccentric seal cover for a centrifugal blower bearing comprises a central cylinder 1, wherein the central cylinder 1 is a hollow cylinder horizontally placed, a ring-shaped bearing groove is recessed in a port of the central cylinder 1, a bearing 11 is installed in the bearing groove, a rotating shaft 12 which transversely penetrates through and is concentrically and fixedly connected is inserted into the bearing 11, the inner end of the rotating shaft 12 penetrates through and extends into the central cylinder 1, a seal cover ring 2 is sleeved on the rotating shaft 12 and is located on the outer end face of the central cylinder 1, the inner end face of the seal cover ring 2 is tightly attached to the bearing 11, and a lubricating component is installed in the seal cover ring 2.

In the utility model, a ladder-shaped ring 13 which is concentrically and fixedly connected is sleeved on the inner wall of a central cylinder 1 and is positioned at the inner side of a bearing groove, a sealing ring 14 which is concentrically and fixedly connected is sleeved on the inner wall of the central cylinder 1 and is positioned between the ladder-shaped ring 13 and a bearing 11, and the ladder-shaped ring 13 and the sealing ring 14 are respectively rotatably sleeved on the inner end of a rotating shaft 12; the seal ring 14 seals the inner end portion of the bearing 11, and the stepped ring 13 serves to increase the firmness of the seal ring 14.

In the utility model, the outer end surface of the central cylinder 1 is provided with a concave annular fixing groove, the outer side of the inner end surface of the cover sealing ring 2 is provided with a convex fixing ring 15, and the fixing ring 15 is matched and clamped in the annular fixing groove; a plurality of fixing bolt holes penetrating through the fixing ring 15 are formed in the outer side surface of the cover sealing ring 2, a fixing bolt 16 is inserted into each fixing bolt hole, and the inner end of each fixing bolt 16 is spirally inserted into the outer end surface of the central cylinder 1; the fixed ring 15 is matched and clamped in the annular fixed groove, the fixed bolts 16 are inserted into the fixed bolt holes, the inner ends of the fixed bolts 16 are spirally inserted into the outer end face of the central cylinder 1, and the sealing performance and the stability of the connection between the cover sealing ring 2 and the central cylinder 1 are improved.

In the utility model, the lubricating component comprises an annular oil cavity 23, a sealing bolt 26 and a sealing plug 27, the annular oil cavity 23 is arranged in the cover sealing ring 2, a branch oil hole 24 is arranged at the position corresponding to the ball of the bearing 11 on the inner end surface of the cover sealing ring 2, and the branch oil hole 24 is communicated with the annular oil cavity 23; the top of the sealing cover ring 2 is provided with a plug hole, the plug hole is communicated with the annular oil cavity 23, a nut ring 25 fixedly connected in a penetrating manner is arranged at the top of the sealing cover ring 2 at an outer port of the plug hole, a sealing bolt 26 penetrating in a spiral manner is inserted into the nut ring 25, the bottom end of the sealing bolt 26 is provided with a sealing plug 27, and the sealing plug 27 penetrates and is inserted into the plug hole; an appropriate amount of lubricating oil is added into the annular oil cavity 23, the lubricating oil can lubricate the balls of the bearing 11 along the branch oil holes 24, and meanwhile, the sealing bolt 26 is matched with the nut ring 25 to be in spiral connection, so that the sealing performance of the sealing plug 27 and the plug hole is improved.

In the utility model, an anti-seepage ring 22 which is concentrically and fixedly connected is arranged outside the inner port of the sealing ring 2, the inner end face of the anti-seepage ring 22 is tightly attached to the bearing 11, a carbon steel thin layer ring 21 which is concentrically and fixedly connected is sleeved on the inner wall of the sealing ring 2, and the carbon steel thin layer ring 21 and the anti-seepage ring 22 are respectively rotatably sleeved on the outer end of the rotating shaft 12; the carbon steel thin layer ring 21 and the seepage-proofing ring 22 are matched for use, so that the rotating stability of the outer end of the rotating shaft 12 along the capping ring 2 is improved, and the seepage-proofing ring 22 effectively prevents lubricating oil from leaking.

Example 2: the utility model discloses when specifically using, its operating procedure is as follows:

step one, because the ladder-shaped ring 13 and the sealing ring 14 are respectively rotatably sleeved on the inner end of the rotating shaft 12, the sealing ring 14 performs a sealing function on the inner end part of the bearing 11, and the ladder-shaped ring 13 plays a role in increasing the firmness of the sealing ring 14;

step two, the fixing ring 15 is clamped in the annular fixing groove in a matching mode, a fixing bolt 16 is inserted into each fixing bolt hole, the inner end of each fixing bolt 16 is spirally inserted into the outer end face of the central cylinder 1, and the sealing performance and the stability of the connection of the cover sealing ring 2 and the central cylinder 1 are improved;

adding a proper amount of lubricating oil into the annular oil cavity 23, lubricating the balls of the bearing 11 along the branch oil hole 24 by the lubricating oil, and increasing the sealing performance of the sealing plug 27 and the plug hole due to the fact that the sealing bolt 26 is matched with the nut ring 25 to be in spiral connection;

and step four, the carbon steel thin-layer ring 21 and the anti-seepage ring 22 are matched for use, so that the rotating stability of the outer end of the rotating shaft 12 along the sealing cover ring 2 is improved, and meanwhile, the anti-seepage ring 22 effectively prevents lubricating oil from leaking.

The utility model discloses a cooperation of each subassembly is used, has solved the bearing and has sealed not tight and lubricated inconvenient problem partially to the lid, and through the double seal effect, effectively prevents the emergence of lubricating oil leakage trouble, guarantees its sealed effect, improves the life of bearing cap and the operating efficiency of equipment.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A special eccentric seal cover for centrifugal blower bearings comprises a central barrel (1), and is characterized in that: a section of thick bamboo (1) is the horizontal hollow tube-shape of placing of level, the port of a center section of thick bamboo (1) is sunken to have the bearing groove of annular shape, bearing (11) are installed to the bearing inslot, bearing (11) interpolation is equipped with pivot (12) that transversely run through and concentric rigid coupling, just the inner end of pivot (12) runs through and stretches into to a center section of thick bamboo (1) in, and the outer terminal surface that is located a center section of thick bamboo (1) is equipped with closing cap ring (2) on pivot (12), bearing (11) are being hugged closely to the interior terminal surface of closing cap ring (2), just install lubricated subassembly in closing cap ring (2).

2. A bearing seal deflector cap for a centrifugal blower, as defined in claim 1, wherein: the inner wall of the central cylinder (1) at the inner side of the bearing groove is sleeved with a ladder-shaped ring (13) which is fixedly connected concentrically, the inner wall of the central cylinder (1) between the ladder-shaped ring (13) and the bearing (11) is sleeved with a sealing ring (14) which is fixedly connected concentrically, and the ladder-shaped ring (13) and the sealing ring (14) are respectively sleeved on the inner end of the rotating shaft (12) in a rotating way.

3. A bearing seal deflector cap for a centrifugal blower, as defined in claim 1, wherein: the outer end face of the central cylinder (1) is sunken to form an annular fixing groove, a protruding fixing ring (15) is arranged on the outer side of the inner end face of the sealing cover ring (2), and the fixing ring (15) is clamped in the annular fixing groove in a matched mode.

4. A bearing seal deflector cap for a centrifugal blower, as defined in claim 3, wherein: a plurality of fixing bolt holes penetrating through the fixing ring (15) are formed in the outer side face of the cover sealing ring (2), fixing bolts (16) are inserted into the fixing bolt holes, and each fixing bolt (16) is spirally inserted into the outer end face of the central cylinder (1).

5. A bearing seal deflector cap for a centrifugal blower, as defined in claim 1, wherein: the lubricating assembly comprises an annular oil cavity (23), a sealing bolt (26) and a sealing plug (27), the annular oil cavity (23) is formed in the cover sealing ring (2), a branch oil hole (24) is formed in the inner end face of the cover sealing ring (2) at a position corresponding to a ball of the bearing (11), and the branch oil hole (24) is communicated with the annular oil cavity (23); the top of closing cap ring (2) is equipped with the consent, just the consent is through connected with annular oil pocket (23), and the outer port that is located the consent is equipped with nut ring (25) of lining up the rigid coupling at the top of closing cap ring (2), nut ring (25) interpolation is equipped with sealing bolt (26) that the spiral runs through, the bottom of sealing bolt (26) is equipped with sealing plug (27), just sealing plug (27) run through to insert and establish in the consent.

6. A bearing seal deflector cap for a centrifugal blower, as defined in claim 1, wherein: the inner end opening of the sealing cover ring (2) is provided with an anti-seepage ring (22) which is fixedly connected concentrically, the inner end face of the anti-seepage ring (22) is tightly attached to the bearing (11), the inner wall of the sealing cover ring (2) is sleeved with a carbon steel thin layer ring (21) which is fixedly connected concentrically, and the carbon steel thin layer ring (21) and the anti-seepage ring (22) are respectively rotatably sleeved on the outer end of the rotating shaft (12).