CN210661073U - Side-feeding type stirrer mechanical seal shaft sleeve - Google Patents

Abstract

The utility model provides a side formula agitator mechanical seal axle sleeve of advancing, including the bearing inner race, the inside bearing inner race that is provided with of bearing inner race, and rotate between bearing inner race and the bearing inner race and be connected with the steel ball retainer, the bearing inner race extends from bearing inner race right side, and stretches into the interior of fixed pipe sleeve, fixed pipe sleeve cup joints on bearing inner race and bearing inner race, and fixed pipe sleeve passes through locking bolt and bearing inner race fixed connection, the inside inlay of bearing inner race is fixed with first O type circle, fixed pipe sleeve is inside to be inlayed and is fixed with second O type circle, the inside third O type circle of inlaying of bearing inner race is fixed with, the utility model discloses a bearing inner race stretches into in the hole to seal scope has been enlarged, and then further improved the leakproofness through three O type circle.

Description

Side-feeding type stirrer mechanical seal shaft sleeve

Technical Field

The utility model relates to a side formula agitator mechanical seal axle sleeve that advances belongs to the mechanical seal equipment field.

Background

In the prior art, a mechanical seal is a shaft seal device of a rotating machine. Such as centrifugal pumps, centrifuges, reaction kettles, compressors, and the like. Since the drive shaft extends through the inside and outside of the apparatus, there is a circumferential gap between the shaft and the apparatus through which the medium in the apparatus leaks out, and if the pressure in the apparatus is lower than atmospheric pressure, air leaks into the apparatus, so that a shaft seal device must be provided to prevent leakage. The shaft seal has many kinds, and the mechanical seal has the advantages of small leakage amount, long service life and the like, so the mechanical seal is the most important shaft sealing mode in the devices in the world.

The sealing bearing in the mechanical sealing shaft sleeve used by the existing side-entry stirrer cannot extend into a gap between the shaft lever and a machine shell, so that the sealing range is low, and the sealing performance is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a side formula agitator mechanical seal axle sleeve advances to solve the problem that proposes in the above-mentioned background art, the utility model discloses a bearing inner race stretches into in the hole to enlarged sealed scope, and then further improved the leakproofness through three O type circle.

In order to achieve the above purpose, the present invention is realized by the following technical solution: the utility model provides a side formula agitator mechanical seal axle sleeve, includes the bearing inner race, the inside bearing inner race that is provided with of bearing inner race, and rotate between bearing inner race and the bearing inner race and be connected with the steel ball retainer, the bearing inner race extends from bearing outer race right side, and stretches into the interior of deciding the pipe box, decide the pipe box cup joint and circle on bearing inner race and bearing inner race, and decide the pipe box and pass through locking bolt and bearing inner race fixed connection, the inside first O type circle of inlaying of bearing outer race, decide the inside second O type circle of inlaying of pipe box, the inside third O type circle of inlaying of bearing inner race is fixed with.

Further, bearing inner race annular side equidistance fixedly connected with four connecting blocks, and four connecting block inside all processes there is the through-hole.

Furthermore, a conical convex surface is processed on the right end face of the bearing inner ring, a conical concave surface is processed on the left end face in the fixed pipe sleeve, and the conical convex surface is arranged inside the conical concave surface in a matching mode.

Furthermore, the annular side surface of the fixed pipe sleeve is connected with four locking bolts through threads, and the inner end surfaces of the four locking bolts penetrate through the fixed pipe sleeve and are in contact with the annular side surface of the bearing inner ring.

Furthermore, a lantern ring is integrally connected to the left end face of the fixed pipe sleeve and sleeved on the bearing outer ring, a sealing ring is arranged between the bearing outer ring and the bearing inner ring, and the sealing ring is located on the right side of the steel ball retainer.

Furthermore, the cross section of the bearing outer ring is in a convex shape, an annular groove is processed at the inner left part of the bearing outer ring, an annular convex ring is integrally connected with the left end face of the bearing inner ring, and the annular convex ring is positioned in the annular groove.

The utility model has the advantages that: the utility model discloses a side formula agitator mechanical seal axle sleeve, the bearing inner race through type stretches into in the hole, and cup joint on the axostylus axostyle, realized enlarging its sealed scope, and through connecting block and machine housing fixed connection, and through first O type circle, second O type circle and third O type circle cup joint on the axostylus axostyle, the leakproofness has further been improved, it stably seals to have realized advancing the formula agitator to the side, it is sealed effectual, sealed bearing in the mechanical seal axle sleeve of having solved the current formula agitator that advances used can't stretch into the space between axostylus axostyle and the machine housing, lead to the lower problem of its sealed scope.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic structural view of a mechanical seal shaft sleeve of a side-entry agitator of the present invention;

FIG. 2 is a schematic left side view of a mechanical seal shaft sleeve of a side-entry agitator of the present invention;

in the figure: 1-a first O-shaped ring, 2-a bearing outer ring, 3-a connecting block, 4-a steel ball retainer, 5-a fixed pipe sleeve, 6-a locking bolt, 7-a second O-shaped ring, 8-a third O-shaped ring and 9-a bearing inner ring.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 1 and fig. 2, the present invention provides a technical solution: a mechanical sealing shaft sleeve of a side-entry stirrer comprises a bearing outer ring 2, a bearing inner ring 9 is arranged inside the bearing outer ring 2, a steel ball retainer 4 is rotatably connected between the bearing outer ring 2 and the bearing inner ring 9, the bearing inner ring 9 extends out of the right side of the bearing outer ring 2 and extends into the fixed pipe sleeve 5, the fixed pipe sleeve 5 is sleeved on the bearing outer ring 2 and the bearing inner ring 9, the fixed pipe sleeve 5 is fixedly connected with the bearing inner ring 9 through a locking bolt 6, a first O-shaped ring 1 is embedded and fixed inside the bearing outer ring 2, a second O-shaped ring 7 is embedded and fixed inside the fixed pipe sleeve 5, a third O-shaped ring 8 is embedded and fixed inside the bearing inner ring 9, the first O-shaped ring 1, the second O-shaped ring 7 and the third O-shaped ring 8 are all sleeved on a shaft rod, and the bearing outer ring 2, the bearing inner ring 9 and the fixed pipe sleeve 5 are sleeved on the shaft rod, Bearing inner race 9 and decide the leakproofness between pipe box 5 and the axostylus axostyle, then stretch into the hole on the agitator shell with bearing outer race 2 in, and pass connecting block 3 through outside bolt, it carries out fixed connection to realize agitator shell and connecting block 3, thereby the shutoff area has been enlarged, the leakproofness has further been improved, and the elasticity through locking bolt 6, then be convenient for decide pipe box 5 and bearing inner race 9 and carry out stable connection and dismantlement, convenient the change, thereby the service life is prolonged, and is sealed and excellent in use effect.

Bearing inner race 2 annular side equidistance four connecting blocks of fixedly connected with 3, and four connecting blocks 3 inside all processes there is the through-hole, is convenient for carry out fixed connection through connecting block 3 and agitator housing side.

The right end face of the bearing inner ring 9 is processed to form a conical convex face, the left end face of the fixed sleeve 5 is processed to form a conical concave face, the conical convex face is matched and arranged inside the conical concave face, and the assembly stability between the bearing inner ring 9 and the fixed sleeve 5 is improved.

The annular side surface of the fixed pipe sleeve 5 is connected with four locking bolts 6 through threads, and the inner end surfaces of the four locking bolts 6 penetrate through the fixed pipe sleeve 5 and are in contact with the annular side surface of the bearing inner ring 9, so that the fixed pipe sleeve 5 and the bearing inner ring 9 are fixed together conveniently.

The left end face of the fixed pipe sleeve 5 is integrally connected with a lantern ring, the lantern ring is sleeved on the bearing outer ring 2, a sealing ring is arranged between the bearing outer ring 2 and the bearing inner ring 9, and the sealing ring is located on the right side of the steel ball retainer 4, so that the sealing range is expanded.

The cross section of the bearing outer ring 2 is in a convex shape, an annular groove is processed at the left part in the bearing outer ring 2, an annular convex ring is integrally connected with the left end face of the bearing inner ring 9 and is positioned in the annular groove, and the sealing effect is further improved.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (6)

1. The utility model provides a side entry agitator mechanical seal axle sleeve, includes bearing inner race (2), its characterized in that: bearing inner race (9) is provided with in bearing outer race (2) inside, and rotates between bearing outer race (2) and bearing inner race (9) and be connected with steel ball retainer (4), bearing inner race (9) extends from bearing outer race (2) right side, and stretches into decide inside pipe box (5), decide pipe box (5) and cup joint on bearing outer race (2) and bearing inner race (9), and decide pipe box (5) through locking bolt (6) and bearing inner race (9) fixed connection, bearing outer race (2) inside is inlayed and is fixed with first O type circle (1), decide inside the inlaying of pipe box (5) and be fixed with second O type circle (7), bearing inner race (9) inside is inlayed and is fixed with third O type circle (8).

2. A side entry mixer mechanical seal bushing according to claim 1, further comprising: bearing inner race (2) annular side equidistance four connecting blocks (3) of fixedly connected with, and the inside through-hole that all processes of four connecting blocks (3).

3. A side entry mixer mechanical seal bushing according to claim 1, further comprising: the bearing inner ring (9) right end face is processed with the toper convex surface, decide pipe box (5) interior left end face processing to have the toper concave surface, the toper convex surface matches and sets up inside the toper concave surface.

4. A side entry mixer mechanical seal bushing according to claim 1, further comprising: the annular side face of the fixed pipe sleeve (5) is connected with four locking bolts (6) through threads, and the inner end faces of the four locking bolts (6) penetrate through the fixed pipe sleeve (5) and are in contact with the annular side face of the bearing inner ring (9).

5. A side entry mixer mechanical seal bushing according to claim 1, further comprising: the left end face of the fixed pipe sleeve (5) is integrally connected with a lantern ring, the lantern ring is sleeved on the bearing outer ring (2), a sealing ring is arranged between the bearing outer ring (2) and the bearing inner ring (9), and the sealing ring is located on the right side of the steel ball retainer (4).

6. A side entry mixer mechanical seal bushing according to claim 1, further comprising: the cross section of the bearing outer ring (2) is in a convex shape, an annular groove is machined in the left portion of the bearing outer ring (2), an annular convex ring is integrally connected to the left end face of the bearing inner ring (9), and the annular convex ring is located inside the annular groove.

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