CN204358107U - A kind of three grades of oil leakage preventing apparatuss for bearing housing - Google Patents
A kind of three grades of oil leakage preventing apparatuss for bearing housing Download PDFInfo
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- CN204358107U CN204358107U CN201420854983.0U CN201420854983U CN204358107U CN 204358107 U CN204358107 U CN 204358107U CN 201420854983 U CN201420854983 U CN 201420854983U CN 204358107 U CN204358107 U CN 204358107U
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- main shaft
- oil
- side cover
- carbocyclic ring
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- Sealing Of Bearings (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
For three grades of oil leakage preventing apparatuss of bearing housing, it comprises the bearing support be connected with base; The both sides of bearing support and top are provided with side cover and top cover; The two bottom sides place of top cover is provided with fixed base; Fixed base is fixedly connected with oil baffle, and fits in the bottom of oil baffle and the mutual gap of main shaft; The internal diameter of side cover and bearing support joint place is provided with spacing back-up ring; The inner side activity clamping spring dead plate of spacing back-up ring; Spring dead plate is socketed on main shaft, and is connected with the side elasticity of carbocyclic ring by the spring that its opposite side is provided with; The opposite side of carbocyclic ring and side cover is bonded to each other and carbocyclic ring is socketed on main shaft; The interior outside of side cover and main shaft joint place is respectively equipped with labyrinth oil sealing and fluorine rubber seal, and is provided with oil-return groove bottom side cover with below the labyrinth oil sealing of main shaft joint place.Three grades of protection in the utility model solve prior art to be existed complex structure, sealing effect difference and overhauls the technical problem wasted time and energy.
Description
Technical field
The utility model belongs to bearing housing oil-leakage-prevention technical field, is specifically related to a kind of three grades of oil leakage preventing apparatuss for bearing housing.
Background technique
In prior art, blower fan is that machine industry use amount is large and use wide common equipment, due to ventilator, to have structure simple, low cost of manufacture, the feature compared with large discharge gas can be carried, at metallurgy, building materials, heat treatment, food, electric power, be widely used in each department of national economy such as iron and steel and petrochemical industry and infrastructure construction, along with rapid development of economy, every profession and trade is more and more higher for the requirement of production environment, adopt the industry-by-industry of blower fan in order to keep the clean of working environment, many employings tiny leakage or leak free leak-proof device of bearing box, such as conventional labyrinth seal, simple floating-ring seal or mechanical seal etc., but these sealing means are single sealing, sealing effect can not reach requirement completely, and complex structure, fragile, working life is short and cost is high, particularly when overhauling, blower fan entirety is needed to take apart, not only workload is large, also the repair time is increased, considerably increase because shutting down the economic loss caused, secondly, under the high and low rotating speed of bearing, the seal arrangement of prior art to reach good sealing effect, 3rd, when leakage of oil appears in Seal in Bearing Box weak effect, not only can affect the smooth running of bearing, time serious, also can cause the phenomenon of main shaft off-axis.
Summary of the invention
The purpose of this utility model solves prior art there is complex structure, sealing effect difference and overhaul the technical problem wasted time and energy, and provides a kind of three grades of oil leakage preventing apparatuss for bearing housing, to overcome the deficiencies in the prior art.
A kind of three grades of oil leakage preventing apparatuss for bearing housing of the utility model, it comprises the bearing support be fixedly connected with base by bolt; The both sides of described bearing support and top are respectively equipped with the side cover and top cover that are bolted to connection; Its main points are that the two bottom sides place of described top cover is bolted a fixed base; Described fixed base is fixedly connected with oil baffle by bolt, and fits in the bottom of oil baffle and the mutual gap of main shaft; The internal diameter of described side cover and bearing support joint place is provided with spacing back-up ring; The inner side activity clamping one of described spacing back-up ring is with the spring dead plate of return opening; Described spring dead plate is socketed on main shaft, and is connected with the side elasticity of carbocyclic ring by the spring that its opposite side is provided with; Described spring dead plate is fixed in the subtend clamping lower limit of spring and spacing back-up ring; The opposite side of described carbocyclic ring and side cover is bonded to each other and carbocyclic ring is socketed on main shaft; The interior outside of described side cover and main shaft joint place is respectively equipped with labyrinth oil sealing and fluorine rubber seal, and is provided with oil-return groove bottom side cover with below the labyrinth oil sealing of main shaft joint place.
The gap laminating degree of described oil baffle and main shaft is 0.1mm-0.2mm.
In order to keep fitting tightly of carbocyclic ring and main shaft, described carbocyclic ring is cut into three sections, and the inner circumference of the corresponding clamping line of every two sections and carbocyclic ring is tangent.
The joint place of described carbocyclic ring and side cover is respectively equipped with the limit sliding chutes preventing displacement.
The joint of described side cover and bearing support is provided with asbestos washer.
The utility model structure is simple, reasonable in design, and the gap laminating degree of oil baffle and main shaft is 0.1mm-0.2mm, and the oil film of formation can stop most oil leakage, forms first order protection; Carbocyclic ring and main shaft bonded to each other, and the joint place of carbocyclic ring and side cover is provided with the limit sliding chutes preventing displacement, and makes it mutually fit tightly under the effect that holds out against of spring, effectively prevents from revealing, and forms second level protection; The labyrinth oil sealing of side cover and main shaft joint place and fluorine rubber seal jointly constitute the third level and protect; Be issued to No leakage in the acting in conjunction of three grades of protection, also can prevent outer boundry particle foreign material from entering bearing housing inside.The utility model solves prior art to be existed complex structure, sealing effect difference and overhauls the technical problem wasted time and energy.
accompanying drawing explanationfig. 1 is structural representation partial sectional view of the present utility model;
fig. 2 is that in Fig. 1, enlarged view is illustrated in local by A place;
Fig. 3 is that the master of the utility model medi-spring fixed plate looks enlarged view;
Fig. 4 is that in the utility model, the master of carbocyclic ring looks enlarged view.
In figure 1, fluorine rubber seal 2, side cover 3, carbocyclic ring 4, spring 5, spring dead plate 6, spacing back-up ring 7, oil baffle 8, fixed base 9, round nut 10, locking card 11, top cover 12, main shaft 13, bearing support 14, asbestos washer 15, base 16, return opening 17, spring eye 18, labyrinth oil sealing 19, oil-return groove
embodimentaccording to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the utility model it comprise the bearing support 13 be fixedly connected with base 15 by bolt; The both sides of described bearing support 13 and top are respectively equipped with the side cover 2 and top cover 11 that are bolted to connection; The two bottom sides place of described top cover 22 is bolted a fixed base 8; Described fixed base 8 is fixedly connected with oil baffle 7 by bolt, and the bottom of oil baffle 7 and main shaft 12 are fitted in gap mutually; Described side cover 2 is provided with spacing back-up ring 6 with the internal diameter of bearing support 13 joint place; The inner side activity clamping one of described spacing back-up ring 6 is with the spring dead plate 5 of return opening 16; Described spring dead plate 5 is socketed on main shaft 12, and is connected with the side elasticity of carbocyclic ring 3 by the spring 4 that its opposite side is provided with; Described spring dead plate 5 is fixed in the subtend clamping lower limit of spring 4 and spacing back-up ring 6; The opposite side of described carbocyclic ring 3 and side cover 2 is bonded to each other and carbocyclic ring 3 is socketed on main shaft 12; Described side cover 2 is respectively equipped with labyrinth oil sealing 18 and fluorine rubber seal 1 with the interior outside of main shaft 12 joint place, and is provided with oil-return groove 19 bottom side cover 2 with below the labyrinth oil sealing 18 of main shaft 12 joint place; Described oil baffle 7 is 0.1mm-0.2mm with the gap laminating degree of main shaft 12; Described carbocyclic ring 3 is cut into three sections, and the inner circumference of the corresponding clamping line of every two sections and carbocyclic ring 3 is tangent; Described carbocyclic ring 3 is respectively equipped with the joint place of side cover 2 limit sliding chutes preventing displacement; Described side cover 2 is provided with asbestos washer 14 with the joint of bearing support 13.
working principle:the both sides of bearing support 13 and top are carried out sealing by side cover 2 and top cover 11 and are fixed, top cover 11 bottom is bolted fixed base 8, fixed base 8 is bolted again oil baffle 7, and oil baffle 7 is 0.1mm-0.2mm with the gap of main shaft 12, the oil film existed between gap by the seal oil of the overwhelming majority, can form first order protection; Carbocyclic ring 3 is bonded to each other with main shaft 12, and carbocyclic ring 3 is provided with the joint place of side cover 2 limit sliding chutes preventing displacement, and makes it mutually fit tightly under the effect that holds out against of spring 4, effectively prevents from revealing, and forms second level protection; The labyrinth oil sealing 18 of side cover 2 and main shaft 12 joint place and fluorine rubber seal 1 jointly constitute the third level and protect; Lubricant oil is understood by oil-return groove 19 return cavity under the stop that the third level protects, and the return opening 16 be provided with on spring dead plate 5 circulates, and can ensure that the lubricant oil in bearing housing cavity circulates mutually.
When after fan starting, first order protected working, blocks the lubricant oil that major part four is loose; Not blocking part weares and teares for cost stops the lubricant oil revealed and come by carbocyclic ring 3 with it, carbocyclic ring 3 is tightly fitted on main shaft 12, due to the special process that carbocyclic ring 3 is three sections of cuttings, it is tightly fitted on main shaft 12 all the time, to a certain degree need just can reveal when changing carbocyclic ring until may wear to, carbocyclic ring is graphite carbon ring, therefore wear rate is very little; Third level sealing is fluorine rubber seal 1, labyrinth oil sealing 18 and oil-return groove 19 on side cover 2, under the stop of fluorine rubber seal 1, micro lubricating oil is by the return opening 16 of oil-return groove 19, spring dead plate 5, be back near bearing, thus complete the whole process of lubricant oil anti-leak.
Bearing support 13 in the utility model is through coordinating with main shaft 12 multidiameter shaft, the endoporus of boring machine boring bearing support, the cylindrical of grinding machine mill main shaft, and with locking card 10 opposite side with round nut 9 rigid bearing, bearing retainer ring is fixed on the fixed position of bearing support particular design, does not need the location of other component.Bearing support entirety is fixed on special base, is bolted, can directly uses or be placed in remaining stents, simple and easy steady, easy to use.The oil baffle 7 of first order leakproof is fixed by bolts on fixed base 8, and fixed base 8 is fixed by bolts on top cover 11, is all convenient to dismounting and makes.The two ends of spring 4 are fixed with the spring eye 17 on spring dead plate 5 and carbocyclic ring 3 respectively, and spring dead plate 5 is fixing on location by the spacing back-up ring 6 on side cover 2.The mating face of side cover 2 and carbocyclic ring 3 is respectively equipped with limit sliding chutes, for fixing carbocyclic ring 3.Carbocyclic ring is graphite carbon ring, Smooth wear-resistant, long service life.Carbocyclic ring is milled with 3 radial runways, and carbocyclic ring is cut into three sections, and the inner circle contour of the corresponding clamping line of every two sections and carbocyclic ring is tangent, make carbocyclic ring after wearing and tearing, each section of adjacent seal ring does not interfere with each other and is close to main shaft along the inside slippage of angular cut, keep fitting tightly between carbocyclic ring and main shaft 12, stop oil leakage.Side cover 2 is provided with fluorine rubber seal 1 and labyrinth oil sealing 18 with the joint of main shaft 12, an oil-return groove 19 is stayed in the bottom of labyrinth oil sealing 18, fluorine rubber seal 1 seals axle mouth, stop outside contamination to invade, and stop that the trace of lubricant oil is revealed, lubricant oil is flowed back in bearing support chamber by the return opening on bottom oil return groove, spring dead plate.
The utility model maintenance is convenient, and the maintenance of sealing system is by original blower fan all solutions structural reform for only to need end cap portions decomposer at present, and structure is simple, and cost is lower; Good seal performance, long service life; A sealability is all had under high and low rotating speed.
Claims (5)
1., for three grades of oil leakage preventing apparatuss of bearing housing, it comprises the bearing support (13) be fixedly connected with base (15) by bolt; The both sides of described bearing support (13) and top are respectively equipped with the side cover (2) and top cover (11) that are bolted to connection; It is characterized in that the two bottom sides place of described top cover (22) is bolted a fixed base (8); Described fixed base (8) is fixedly connected with oil baffle (7) by bolt, and the bottom of oil baffle (7) and main shaft (12) are fitted in gap mutually; Described side cover (2) is provided with spacing back-up ring (6) with the internal diameter of bearing support (13) joint place; The inner side activity clamping one of described spacing back-up ring (6) is with the spring dead plate (5) of return opening (16); Described spring dead plate (5) is socketed on main shaft (12), and is connected with the side elasticity of carbocyclic ring (3) by the spring (4) that its opposite side is provided with; Described spring dead plate (5) is fixed in the subtend clamping lower limit of spring (4) and spacing back-up ring (6); The opposite side of described carbocyclic ring (3) and side cover (2) is bonded to each other and carbocyclic ring (3) is socketed on main shaft (12); Described side cover (2) is respectively equipped with labyrinth oil sealing (18) and fluorine rubber seal (1) with the interior outside of main shaft (12) joint place, and side cover (2) bottom is provided with oil-return groove (19) with labyrinth oil sealing (18) below of main shaft (12) joint place.
2. a kind of three grades of oil leakage preventing apparatuss for bearing housing according to claim 1, is characterized in that described oil baffle (7) is 0.1mm-0.2mm with the gap laminating degree of main shaft (12).
3. a kind of three grades of oil leakage preventing apparatuss for bearing housing according to claim 1, it is characterized in that described carbocyclic ring (3) is cut into three sections, and the inner circumference of the corresponding clamping line of every two sections and carbocyclic ring (3) are tangent.
4. a kind of three grades of oil leakage preventing apparatuss for bearing housing according to claim 1, is characterized in that described carbocyclic ring (3) is respectively equipped with the joint place of side cover (2) limit sliding chutes preventing displacement.
5. a kind of three grades of oil leakage preventing apparatuss for bearing housing according to claim 1, is characterized in that described side cover (2) is provided with asbestos washer (14) with the joint of bearing support (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420854983.0U CN204358107U (en) | 2014-12-30 | 2014-12-30 | A kind of three grades of oil leakage preventing apparatuss for bearing housing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420854983.0U CN204358107U (en) | 2014-12-30 | 2014-12-30 | A kind of three grades of oil leakage preventing apparatuss for bearing housing |
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| CN204358107U true CN204358107U (en) | 2015-05-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113446322A (en) * | 2021-07-26 | 2021-09-28 | 太原重工股份有限公司 | End shield box cover device of oil film bearing |
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2014
- 2014-12-30 CN CN201420854983.0U patent/CN204358107U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113446322A (en) * | 2021-07-26 | 2021-09-28 | 太原重工股份有限公司 | End shield box cover device of oil film bearing |
| CN113446322B (en) * | 2021-07-26 | 2022-06-14 | 太原重工股份有限公司 | End shield box cover device of oil film bearing |
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