CN219432289U - Mechanical sealing device for high-oil-level bearing bush - Google Patents

Abstract

The utility model relates to a high-oil-level bearing bush mechanical sealing device which comprises a bearing bush, wherein a mechanical sealing assembly is arranged outside the bearing bush and comprises a bushing fixedly arranged on the front surface of the bearing bush, and sealing edges are fixedly arranged at the lower ends of the upper ends of the bearing bush. This high oil level axle bush mechanical seal device through installing the device between driving crankshaft and bearing, axle bush fixed surface mounting's bush has reached the effect that consolidates driving crankshaft and bearing this moment, sealed limit through axle bush upper and lower both ends installation seals bearing and driving crankshaft, flow away from the bush surface when lubricating oil, the slot of seting up between bush and the sealed limit stores lubricating oil this moment and prevents that lubricating oil from leaking to the machinery outside has reached sealed effectual effect, three oilhole of seting up through the bush surface has reached and has distributed the effect that makes machinery can steady operation on the whole working surface of bearing with lubricating oil.

Description

Mechanical sealing device for high-oil-level bearing bush

Technical Field

The utility model relates to the technical field of bearing bushes, in particular to a mechanical sealing device for a high-oil-level bearing bush.

Background

When the rotating shaft runs at a high speed in the bearing bush, a layer of very thin oil film is required to play a role in lubrication between the bearing bush and the rotating shaft, if lubrication is poor, direct friction exists between the bearing bush and the rotating shaft, and the bearing bush is burnt out due to the high Wen Zuyi generated by the direct friction, so that the sealing performance of the bearing bush is very important in order to ensure that lubricating oil is not leaked and lost when the rotating shaft runs at a high speed in the bearing bush.

The Chinese patent publication No. CN206036039U proposes: the technical scheme of the sealed bearing bush is as follows: the utility model discloses a Chinese patent No. 204025340U, which discloses a sealing type bearing bush with a single structure and no multiple sealing effect and lubricating oil backflow function, wherein the utility model provides the following technical scheme that the sealing type bearing bush comprises a bearing bush body and a sealing sleeve ring, wherein the bearing bush body is welded with the sealing sleeve ring, and the sealing type bearing bush is … ….

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the mechanical sealing device for the high-oil-level bearing bush, which has the advantages of good sealing effect, leak prevention during lubricating oil storage and the like, and solves the problem that the mechanical sealing device does not have multiple sealing effects and lubricating oil backflow functions.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the high-oil-level bearing bush mechanical sealing device comprises a bearing bush, wherein a mechanical sealing assembly is arranged outside the bearing bush.

The mechanical sealing assembly comprises a bushing fixedly mounted on the front face of the bearing bush, sealing edges are fixedly mounted at the lower end of the upper end of the bearing bush, grooves are formed in the front face of the bearing bush, and oil holes penetrating through the back face of the bearing bush and three in number are formed in the front face of the bushing.

Further, the surface area of the bearing bush is larger than that of the bushing, and the bearing bush and the bushing are of semicircular structures.

Further, the thickness of the bushing is the same as the thickness of the bearing bush.

Further, the two sealing edges are respectively positioned at the upper end and the lower end of the bushing.

Further, the heights of the two sealing edges are the same as the overall thickness of the bearing bush and the bushing.

Further, the groove is located between the sealing edge and the bushing, and the three oil holes are all located at the bottom of the groove.

Compared with the prior art, the technical scheme of the application has the following beneficial effects:

this high oil level axle bush mechanical seal device through installing the device between driving crankshaft and bearing, axle bush fixed surface mounting's bush has reached the effect that consolidates driving crankshaft and bearing this moment, sealed limit through axle bush upper and lower both ends installation seals bearing and driving crankshaft, flow away from the bush surface when lubricating oil, the slot of seting up between bush and the sealed limit stores lubricating oil this moment and prevents that lubricating oil from leaking to the machinery outside has reached sealed effectual effect, three oilhole of seting up through the bush surface has reached and has distributed the effect that makes machinery can steady operation on the whole working surface of bearing with lubricating oil.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is a top cross-sectional view of the structure of the present utility model.

In the figure: 1. bearing bush; 2. a bushing; 3. sealing edges; 4. a groove; 5. and an oil hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-2, the high oil level bearing bush mechanical seal device in this embodiment includes a bearing bush 1, and a mechanical seal assembly is disposed outside the bearing bush 1.

The mechanical seal assembly comprises a bushing 2 fixedly arranged on the front surface of a bearing bush 1, the surface area of the bearing bush 1 is larger than that of the bushing 2, the bearing bush 1 and the bushing 2 are of semicircular structures, the thickness of the bushing 2 is identical to that of the bearing bush 1, and the purpose is to enable the bushing 2 to reduce gaps between a transmission crankshaft and the bearing bush 1, so that the stabilizing effect of the transmission crankshaft and the bearing bush 1 is enhanced.

The upper end lower extreme of axle bush 1 all fixed mounting has sealing edge 3, two sealing edges 3 are located the upper and lower both ends of bush 2 respectively, the height of two sealing edges 3 is the same with the whole thickness of axle bush 1 and bush 2, slot 4 has been seted up in the front of axle bush 1, slot 4 is located between sealing edge 3 and the bush 2, the inside that lubricating oil can be stored at slot 4 when the purpose is the bearing is rotatory is sheltered from by sealing edge 3, make lubricating oil can not reveal the outside of machinery, the front of bush 2 has been seted up and has been run through to axle bush 1 back and the oilhole 5 of quantity for three, three oilhole 5 all is located the bottom of slot 4, the purpose is in order to make lubricating oil can distribute on the whole working surface of bearing.

The working principle of the embodiment is as follows:

when the device is used, the device is laid on the inner surface of the bearing seat, one surface provided with the groove 4 faces the outer side of the bearing seat, the transmission crankshaft is installed in the bush 2, the other half of the bush mechanical sealing assembly is installed at the top of the transmission crankshaft, the bearing cover is covered for normal use, the bush 2 fixedly installed on the surface of the bush 1 reduces a gap between the transmission crankshaft and the bearing, the transmission crankshaft can stably rotate in the bearing, the sealing edges 3 installed on the upper end and the lower end of the bush 1 seal the bearing and the transmission crankshaft, when lubricating oil flows away from the surface of the bush 2, the groove 4 arranged between the bush 2 and the sealing edges 3 can also store the lubricating oil to prevent the lubricating oil from flowing out of the machine, and finally the three oil holes 5 formed on the surface of the bush 2 can distribute the lubricating oil on the whole working surface of the bearing to enable the machine to stably run.

It is noted that relational terms such as first and second, and the like are 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. Moreover, 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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

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

Claims (6)

1. High oil level axle bush mechanical seal device, including axle bush (1), its characterized in that: a mechanical sealing assembly is arranged outside the bearing bush (1);

the mechanical sealing assembly comprises a bushing (2) fixedly mounted on the front face of the bearing bush (1), sealing edges (3) are fixedly mounted at the lower end of the upper end of the bearing bush (1), grooves (4) are formed in the front face of the bearing bush (1), and oil holes (5) penetrating through the back face of the bearing bush (1) and being three in number are formed in the front face of the bushing (2).

2. The high oil level bushing mechanical seal of claim 1, wherein: the surface area of the bearing bush (1) is larger than that of the bushing (2), and the bearing bush (1) and the bushing (2) are of semicircular structures.

3. The high oil level bushing mechanical seal of claim 1, wherein: the thickness of the bushing (2) is the same as that of the bearing bush (1).

4. The high oil level bushing mechanical seal of claim 1, wherein: the two sealing edges (3) are respectively positioned at the upper end and the lower end of the bushing (2).

5. The high oil level bushing mechanical seal of claim 1, wherein: the heights of the two sealing edges (3) are the same as the whole thickness of the bearing bush (1) and the lining (2).

6. The high oil level bushing mechanical seal of claim 1, wherein: the grooves (4) are arranged between the sealing edges (3) and the bushings (2), and the three oil holes (5) are all arranged at the bottoms of the grooves (4).