CN209892495U

CN209892495U - Multistage centrifugal oil pump bearing body seals dustproof construction

Info

Publication number: CN209892495U
Application number: CN201920497717.XU
Authority: CN
Inventors: 崔发革
Original assignee: Dalian Shen Domain Fluid Machinery Co Ltd
Current assignee: Dalian Shen Domain Fluid Machinery Co Ltd
Priority date: 2019-04-13
Filing date: 2019-04-13
Publication date: 2020-01-03
Anticipated expiration: 2029-04-13

Abstract

The utility model discloses a multistage centrifugal oil pump bearing body sealing dustproof structure, which comprises a rotating shaft, wherein the outer surface of the upper side and the lower side of the rotating shaft are fixedly connected with a strip-shaped sealing element, the two ends of one side of the strip-shaped sealing element, which is far away from the rotating shaft, are fixedly provided with a reinforcing mechanism, a damping layer is arranged between the two reinforcing mechanisms at the same side, one end of the rotating shaft is fixedly connected with a rotating shaft connecting piece through welding, the surface of the rotating shaft connecting piece is provided with a sealing mechanism, and the outer surface of the upper side and the lower side of the rotating shaft connecting piece are fixedly provided with a sealing mechanism through a small mounting screw, the utility model discloses a strip-shaped sealing element is connected on the rotating shaft, the strip-shaped sealing element can play a better sealing performance through the arranged strip-shaped sealing element, thereby ensuring the sealing performance of the rotating shaft during working, the service performance is increased.

Description

Multistage centrifugal oil pump bearing body seals dustproof construction

Technical Field

The utility model relates to a dustproof construction, in particular to multistage centrifugal oil pump bearing body seals dustproof construction belongs to centrifugal oil pump technical field.

Background

An oil pump is a lightweight and compact pump of three main types, namely an in-line type, a split type and a single type, which is operated by a power source, and a lower camshaft of which is driven by an engine crankshaft gear, and provides an oil pump having a housing made of an aluminum-containing material and a movable molding provided in the housing, wherein the movable molding is made at least partially of a sinterable material containing at least an austenitic iron-based alloy, and wherein the molding made of a sinterable material has a coefficient of thermal expansion of at least 60% of the coefficient of thermal expansion of the housing, whereas the conventional multistage centrifugal oil pump has poor sealing performance after long-term use, is liable to cause leakage, and is liable to intrude dust, which affects the usability of the oil pump.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a multi-stage centrifugal oil pump bearing body sealing dustproof structure which has good sealing performance and prolongs the service life,

in order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a multistage centrifugal oil pump bearing body sealing dustproof structure, which comprises a rotating shaft, wherein the outer surface of the upper side and the lower side of the rotating shaft are fixedly connected with a bar-shaped sealing element, the two ends of one side of the bar-shaped sealing element, which is far away from the rotating shaft, are fixedly provided with a reinforcing mechanism, two reinforcing mechanisms are arranged at the same side, a shock-absorbing layer is arranged between the reinforcing mechanisms, one end of the rotating shaft is fixedly connected with a rotating shaft connecting piece through welding, the surface of the rotating shaft connecting piece is provided with a sealing mechanism, the outer surface of the upper side and the lower side of the rotating shaft connecting piece is fixedly provided with a sealing mechanism through a small-sized mounting screw, one side of the sealing mechanism, which is close to the rotating shaft, is fixedly provided with a pressing piece, the pressing piece is fixedly arranged on the bar, and an installation support is arranged above the stuffing box, and an installation bolt is connected to the installation support through threads.

As a preferred technical scheme of the utility model, sealing mechanism includes oval seal groove, circular seal groove, elliptical sealing member and circular sealing member, oval seal groove and circular seal groove all set up in pivot connecting piece surface, oval seal groove is equipped with the elliptical sealing member that corresponds with it, circular seal groove is equipped with the circular sealing member that the circular recess corresponds with it.

As the utility model discloses a preferred technical scheme, strengthening mechanism is including consolidating the base, consolidating support column and reinforcement, consolidate the base and pass through small-size screw fixed mounting on the bar sealing member, consolidate the one end fixedly connected with reinforcement support column that the bar sealing member was kept away from to the base, it has the reinforcement through small-size screw fixed mounting to consolidate the one end that the support column was kept away from and is consolidated the base.

As a preferred technical scheme of the utility model, airtight mechanism includes closing plate, airtight groove and O type closing member, the closing plate passes through small-size connection rivet fixed mounting on the pivot connecting piece, the closing plate top is convex structural design, the airtight groove has been seted up to closing plate top surface, O type closing member has been inlayed to the inside dress of airtight groove.

As an optimal technical scheme of the utility model, buffer layer and the outside protection casing that has all wrapped up of packing box, erection support fixed mounting is in protection casing upper surface.

As an optimal technical scheme of the utility model, strengthening mechanism adopts stereoplasm steel material to make, just the pivot surface scribbles lubricating oil.

The utility model discloses the beneficial effect who reaches is:

1. be connected with the bar sealing member in the pivot, can play better sealing performance through the bar sealing member that sets up, thereby guarantee the pivot leakproofness at the during operation, increase sealing performance, can compress tightly work to the bar sealing member through the piece that compresses tightly that sets up, prevent that it from appearing the gap after long-time the use, guarantee that it can not produce the gap condition of leaking after long-time the use yet, increase performance, consolidate the base simultaneously through setting up at strengthening mechanism, can further carry out weight to the bar sealing member through the reinforcement base that sets up and compress tightly the processing, it is connected with the performance that consolidates support column and reinforcement can improve this multistage centrifugal oil pump greatly to consolidate the base simultaneously, make it have fabulous shock resistance.

2. Oval seal groove and circular seal groove have been seted up on pivot connecting piece surface, oval seal groove and circular seal groove through setting up can satisfy different working property, oval seal groove and circular seal groove are equipped with oval sealing member and the circular sealing member that corresponds with it simultaneously, oval sealing member and circular sealing member through setting up can inlay in oval seal groove and circular seal groove, sealing performance has been improved when satisfying different in service behavior, can play better airtight effect when this oil pump uses through the closed groove and the O type closed member that set up simultaneously, can block the dust through dust guard and the dust screen cloth that sets up, prevent the dust invasion, its life has been prolonged, can play better shock attenuation effect through setting up the buffer layer, and convenient to use.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of the internal structure of the present invention;

fig. 2 is a schematic view of the sealing mechanism of the present invention;

fig. 3 is an enlarged schematic view of the structure of the area a of the present invention.

In the figure: 1. a rotating shaft; 2. a strip seal; 3. a reinforcement mechanism; 31. reinforcing the base; 32. reinforcing the supporting columns; 33. A reinforcement; 4. a rotating shaft connecting piece; 5. a sealing mechanism; 51. an elliptical seal groove; 52. a circular seal groove; 53. an elliptical seal; 54. a circular seal; 6. a sealing mechanism; 61. a closing plate; 62. a closed groove; 63. an O-shaped sealing element; 7. a stuffing box; 8. mounting a support; 9. installing a bolt; 10. a dustproof screen; 11. a dust-proof plate; 12. a compression member; 13. and a shock absorption layer.

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.

Example (b): as shown in FIGS. 1-3, the multi-stage centrifugal oil pump bearing body sealing and dust-proof structure of the present invention comprises a rotating shaft 1, a bar-shaped sealing member 2 is fixedly connected to the outer surface of the upper and lower sides of the rotating shaft 1, reinforcing mechanisms 3 are fixedly mounted at both ends of one side of the bar-shaped sealing member 2 away from the rotating shaft 1, a shock-absorbing layer 13 is disposed between the two reinforcing mechanisms 3 on the same side, one end of the rotating shaft 1 is fixedly connected to a rotating shaft connecting member 4 by welding, a sealing mechanism 5 is disposed on the surface of the rotating shaft connecting member 4, a sealing mechanism 6 is fixedly mounted on the outer surface of the upper and lower sides of the rotating shaft connecting member 4 by a small mounting screw, a pressing member 12 is fixedly mounted at one side of the sealing mechanism 6 close to the rotating shaft 1, the pressing member 12 is fixedly mounted on the bar-shaped sealing member 2, one side of the reinforcing mechanism 3, which is far away from the damping layer 13, is filled with a stuffing box 7, an installation support 8 is arranged above the stuffing box 7, and the installation support 8 is connected with an installation bolt 9 through threads.

The sealing mechanism 5 comprises an oval sealing groove 51, a circular sealing groove 52, an oval sealing element 53 and a circular sealing element 54, the oval sealing groove 51 and the circular sealing groove 52 are arranged on the surface of the rotating shaft connecting piece 4, the oval sealing groove 51 is provided with the oval sealing element 53 corresponding to the oval sealing groove, the circular sealing groove 52 is provided with the circular sealing element 54 corresponding to the circular groove, the sealing performance is improved, the reinforcing mechanism 3 comprises a reinforcing base 31, a reinforcing support column 32 and a reinforcing piece 33, the reinforcing base 31 is fixedly arranged on the strip-shaped sealing element 2 through small screws, one end, far away from the strip-shaped sealing element 2, of the reinforcing base 31 is fixedly connected with the reinforcing support column 32, one end, far away from the reinforcing base 31, of the reinforcing support column 32 is fixedly provided with the reinforcing piece 33 through small screws, the sealing mechanism has good, airtight plate 61 is through small-size connection rivet fixed mounting on pivot connecting piece 4, airtight plate 61 top is convex structural design, airtight groove 62 has been seted up to airtight plate 61 top surface, the inside dress of airtight groove 62 has inlayed O type closing member 63, thereby further increase sealed performance, buffer layer 13 and the outside protection casing that has all wrapped up of packing box 7, 8 fixed mounting of erection support in protection casing upper surface, increase the structure steadiness, reinforcing mechanism 3 adopts stereoplasm steel material to make, and 1 surface in pivot scribbles lubricating oil, thereby increase performance.

Specifically, when the multi-stage centrifugal oil pump is used, the strip-shaped sealing element 2 is connected on the rotating shaft 1, and the strip-shaped sealing element 2 can play a better sealing property, so that the sealing property of the rotating shaft 1 during working is ensured, and the sealing property is improved, the strip-shaped sealing element 2 can be pressed through the arranged pressing element 12, so that a gap is prevented from being formed after the multi-stage centrifugal oil pump is used for a long time, the condition of gap leakage can not be generated after the multi-stage centrifugal oil pump is used for a long time, the service performance is improved, meanwhile, the reinforcing base 31 is arranged on the reinforcing mechanism 3, the strip-shaped sealing element 2 can be further pressed by the arranged reinforcing base 31, the reinforcing base 31 is connected with the reinforcing support column 32 and the reinforcing piece 33, the service performance of the multi-stage centrifugal oil pump can be greatly improved, the multi-stage centrifugal oil pump has excellent impact, different working performances can be met through the oval sealing groove 51 and the circular sealing groove 52 which are arranged, meanwhile, the oval sealing groove 51 and the circular sealing groove 52 are provided with the oval sealing piece 53 and the circular sealing piece 54 which correspond to the oval sealing groove, the oval sealing piece 53 and the circular sealing piece 54 which are arranged can be embedded in the oval sealing groove 51 and the circular sealing groove 52, the sealing performance is improved when different use conditions are met, meanwhile, a better sealing effect can be achieved when the oil pump is used through the sealing groove 62 and the O-shaped sealing piece 63 which are arranged, dust can be blocked through the dust-proof plate 11 and the dust-proof screen 10 which are arranged, dust invasion is prevented, the service life of the oil pump is prolonged, a better shock absorption effect can be achieved through the shock absorption layer 13 which is arranged, and the use is convenient.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a sealed dustproof construction of multistage centrifugal oil pump bearing body, its characterized in that includes pivot (1), equal fixedly connected with bar sealing member (2) of outside surface about pivot (1), the equal fixed mounting in one side both ends that pivot (1) was kept away from in bar sealing member (2) has strengthening mechanism (3), two of the homonymy be equipped with buffer layer (13) between strengthening mechanism (3), pivot (1) one end is through welded fastening connection with pivot connecting piece (4), pivot connecting piece (4) surface is equipped with sealing mechanism (5), the outside surface of pivot connecting piece (4) is all through small-size mounting screw fixed mounting have airtight mechanism (6), one side fixed mounting that airtight mechanism (6) is close to pivot (1) has compressing component (12), compressing component (12) is through small-size fixing bolt fixed mounting on bar sealing member (2), one side fixed mounting that airtight mechanism (6) were kept away from in piece (12) compresses tightly has dust guard (11), dust guard (11) fixed surface installs dustproof screen cloth (10), one side that shock-absorbing layer (13) were kept away from in strengthening mechanism (3) is filled with packing box (7), packing box (7) top is equipped with erection support (8), threaded connection has construction bolt (9) on erection support (8).

2. The multistage centrifugal oil pump bearing body sealing dustproof structure is characterized in that the sealing mechanism (5) comprises an oval sealing groove (51), a circular sealing groove (52), an oval sealing element (53) and a circular sealing element (54), the oval sealing groove (51) and the circular sealing groove (52) are arranged on the surface of the rotating shaft connecting piece (4), the oval sealing groove (51) is provided with the oval sealing element (53) corresponding to the oval sealing groove, and the circular sealing groove (52) is provided with the circular sealing element (54) corresponding to the circular groove.

3. The multi-stage centrifugal oil pump bearing body sealing dustproof structure is characterized in that the reinforcing mechanism (3) comprises a reinforcing base (31), a reinforcing support column (32) and a reinforcing member (33), the reinforcing base (31) is fixedly installed on the strip-shaped sealing member (2) through a small screw, the reinforcing support column (32) is fixedly connected to one end, away from the strip-shaped sealing member (2), of the reinforcing base (31), and the reinforcing member (33) is fixedly installed at one end, away from the reinforcing base (31), of the reinforcing support column (32) through a small screw.

4. The multistage centrifugal oil pump bearing body sealing dustproof structure according to claim 1, wherein the sealing mechanism (6) comprises a sealing plate (61), a sealing groove (62) and an O-shaped sealing piece (63), the sealing plate (61) is fixedly installed on the rotating shaft connecting piece (4) through a small connecting rivet, the top end of the sealing plate (61) is designed into a circular arc-shaped structure, the outer surface of the top end of the sealing plate (61) is provided with the sealing groove (62), and the sealing groove (62) is embedded with the O-shaped sealing piece (63).

5. The multistage centrifugal oil pump bearing body sealing dustproof structure is characterized in that a protective shell is wrapped outside the shock absorption layer (13) and the stuffing box (7), and the mounting support (8) is fixedly mounted on the upper surface of the protective shell.

6. The multi-stage centrifugal oil pump bearing body sealing and dust preventing structure is characterized in that the reinforcing mechanism (3) is made of hard steel materials, and lubricating oil is coated on the surface of the rotating shaft (1).