CN201513479U - Bearing support - Google Patents

Abstract

The utility model relates to a bearing support, which mainly solves the problem that cooling can not be performed under high temperature, a bearing cavity can not adapt to severe external environment and is communicated with the outside easily, and the bearing cavity can not be greased successfully due to high temperature, or a bearing can not work. The bearing support mainly comprises a bearing support body, a blank cover and a transparent cover; a deflation valve is arranged on the blank cover; the blank cover and the transparent cover are respectively fixed on the two end surfaces of the bearing support body through blank cover screws and transparent cover screws; and an inner shaft neck seal and an outer shaft neck seal are arranged at an inner hole of the transparent cover. The bearing support is characterized in that a ring-shaped normal pressure cavity is arranged between the inner and the outer shaft neck seals; the normal pressure cavity comprises plugs and a plurality of drain holes which are communicated with the outside; a cooling cavity is arranged on the transparent cover on the inner side of the bearing support and is provided with more than two water gaps for receiving recirculated cooling water. The utility model is suitable for the places under severe service condition, such as high temperature, greater wind, water and dust, and the like, can ensure the bearing under the use temperature, and can prevent the external wind, water, dust and other sundry from entering the bearing cavity.

Description

A kind of bearing support

Technical field: the utility model relates to a kind of bearing support, and its effect is the containing that realizes the location of revolving part and bearing, fixing, lubricated and cooling; Be applicable to abominable places of applying working condition such as high temperature, wind, water, dust is bigger; Its objective is that the serviceability temperature that guarantees bearing does not exceed standard, foreign material such as wind outside, water, dust can not enter bearing bore, new grease can be supplied with smoothly, thereby realize the protection of bearing, prolong the bearing purpose in working life.

Background technique: bearing support is mechanically operated visual plant, is widely used in various rotation occasions.Known bearing support Transmitted chains is: bearing support → bearing → axle (revolving part).For guaranteeing the proper functioning of bearing, must in bearing bore, constantly add lubricant oil, and prevent that foreign material such as outside wind, water, dust from entering bearing bore; Especially under high temperature condition, must guarantee that the temperature of bearing bore is lower than 50 ℃, so that the proper functioning of bearing or bio-occlusion fat.For the bearing support when worst hot case (external temperature 〉=400 ℃) uses, its known structure is made up of sealing in bearing support body, gland (stifle or saturating lid), gland seal, the axle journal, axle journal external sealed (having plenty of dust ring), cooling water etc.But this kind structure usually takes place in the axle journal that sealing, axle journal external sealed are aging in advance to be scrapped or too responsive to wearing and tearing, cause the seal ring life-span extremely short, cause bearing bore and outside very easily to connect, make the foreign material such as wind, water, dust of outside enter bearing bore; Or, surpass the operating temperature of bearing because the rising of ambient temperature raises the temperature of bearing bore; Or, form high pressure because the interior higher temperature of bearing support makes the grease vaporization in the bearing bore, cause outside grease not supply with smoothly; Above-mentioned factor all can make the lost of life of bearing or can not turn round at all; Simultaneously, the cooling effect of external cooling water is not good enough, structure is huge, and other facility is also caused bad influence.

" the disclosed various seal combination forms of mechanical actual handbook, and disclosed various bearing support, for example JB2558-79, JB2559-79 all can not effectively stop extraneous dust, sewage to enter bearing bore, the grease pressure for vaporization in can not the release bearing chamber; More do not have under high temperature condition the function of cooling axle journal.

What Chinese patent 200420034669.4,200420034668.X were introduced is the cooling problem of roller spare, all different with the type of cooling of this case and position and structure, and does not have the bearing protective function and the oil supply pressure release security function of this case; What Chinese patent 200320107083.1,200420062155.X were introduced is the protective function of general condition lower bearing, does not have high temperature (external temperature 〉=400 ℃) refrigerating function of this case.

The model utility content: the purpose of this utility model provides a kind of bearing support.The inside and outside sealing of axle journal that mainly solves cooling problem under hot environment (external temperature 〉=400 ℃) and existing bearing seat is aging easily, to the sensitivity of wearing and tearing; Bearing bore can not adapt to abominable external environment (for example external cooling water of high pressure, wind, dust etc.) and easy and extraneous perforation problem; Reach because of bearing bore Yin Gaowen and can not give technical problems such as fat or bearing can not turn round smoothly.This case is simple in structure, easy processing, easy for installation, safeguard simple; Be adapted under high temperature (temperature 〉=400 ℃) operating mode, the place that needs to force cooling also is adapted to the abominable occasion of environment such as wind, water, dust simultaneously and uses.

The utility model is to realize by following technological scheme: a kind of bearing support, mainly comprise bearing support body, stifle, saturating lid, and bleed valve is set on the stifle, grease in bearing bore is because of high-temperature evaporation, when cavity pressure raises, can releasing pressure automatically, realize the smooth oil supply of filler opening.Stifle and saturating lid are respectively by stifle screw and two end faces of saturating lid screw at the bearing support body, sealing in the configuration axle journal, axle journal external sealed on the saturating lid endoporus, it is characterized in that processing ring-type common pressure chamber, common pressure chamber have several drain boleses to communicate with the external world, and be furnished with plug between the inside and outside sealing of axle journal; Thereby realize bearing bore not in cooling chamber or abominable external environment condition direct neighbor, thereby can guarantee that cooling water or extraneous dirt can not enter bearing bore, and then effectively guarantee the normal use of bearing;

Covering thoroughly of bearing support inboard, cooling chamber is set, and (cooling chamber can be designed to overall structure as required or divide body structure, install with convenient), and dispose the plural mouth of a river, connect recirculated cooling water, so just can guarantee that the temperature of axle can not be delivered to bearing bore, the cooling water of same cooling chamber is also because the setting of common pressure chamber and drain boles, can not threaten bearing bore, also just realize the purpose that cooling water can't enter bearing bore.

When using this device, can be according to field condition, the plug of one or several drain boles of certain direction of dismounting common pressure chamber, the principle of dismounting plug are to guarantee that drain boles always is arranged in the site environment situation and preferably, maybe can makes common pressure chamber form the orientation of negative pressure; Thereby bearing bore, cooling chamber (or abominable outside orientation) are always separated, and all the common pressure chamber with low pressure is adjacent; And it sees through the dirt of sealing, also can discharge by drain boles timely, thereby guarantee that effectively bearing bore is not by the good applying working condition of outside contamination, assurance bearing; Simultaneously, the existence of several drain boleses is also provided convenience for cleaning ring-type common pressure chamber.

The beneficial effects of the utility model are: the cooling chamber of (1) sealing has simple in structure, intensive reliable, respond well and can not pollute other equipment or characteristics such as member; (2) setting of common pressure chamber, the effective separation of having realized bearing bore and cooling chamber (or abominable external environment condition), and the purpose of the protection bearing bore that always communicates, and then reach with common pressure chamber; (3) setting of drain boles, realization bearing bore and cooling chamber (or outside) enter the dirt of common pressure chamber and can discharge outside the common pressure chamber by drain boles timely; Also guarantee simultaneously the easy to maintenance of common pressure chamber; (4) setting of drain boles also realizes sealing single face pressurized always, thereby the wearing and tearing of sealing is had compensate function, and insensitive to its wearing and tearing, plays to prolong the sealing effect in working life; (5) setting of bleed valve realizes in the bearing bore, because the automatic drainage that grease high-temperature evaporation build-up of pressure raises guarantees the normal supply of grease.

Description of drawings:

Fig. 1 is the utility model embodiment 1 structural representation; Be suitable for the place that needs are forced cooling and must be protected other member or object.

Fig. 2 is the utility model embodiment 2 structural representations; Being suitable for can external cooling water or wind, water, operational site that dust is bigger.

Whether this case is with cooling chamber according to bearing support, and is divided into two kinds of structures.These two kinds of structural principles are identical, all be that the mal-condition that bearing bore and bearing bore is outer is separated, realize that extraneous foreign material can not enter the also automatic discharging of the outer or interior grease high-temperature evaporation pressure of bearing bore of discharge side in time of ageing oil in bearing bore, the bearing bore.

Among the figure: 1-stifle, the sealing of 1.1-stifle, 1.2-stifle screw, 2-bearing support body, 3-bearing, 3.1-bearing plate, 3.2-bridge screw, 4-axle, 5-cover thoroughly, 5.1-covers sealing, 5.2-thoroughly and covers sealing in screw, 5.3-plug, the 6-axle journal, 7-axle journal external sealed, 8-cooling chamber, the sealing of 8.1-cooling chamber, 9-bleed valve thoroughly; 10-oil filler, 11-drain boles, 12-common pressure chamber, the 13-mouth of a river.

Embodiment:

Embodiment 1: consulting accompanying drawing 1, is example with the bearing support that has cooling chamber; A kind of bearing support mainly comprises bearing support body 2, stifle 1, covers 5 thoroughly, and bleed valve 9 is set on the stifle 1, and the grease in bearing bore is because of high-temperature evaporation, when cavity pressure raises, can releasing pressure automatically, and realize the smooth oil supply of filler opening.Stifle 1 and saturating lid 5 are fixed on two end faces of bearing support body 2 respectively by stifle screw 1.2 and saturating lid screw 5.2, stifle 1 is provided with stifle sealing 1.1 with bearing support body 2 joints, saturating lid 5 be provided with lid sealing 5.1 with bearing support body 2 joints, sealing 6 in the configuration axle journal, axle journal external sealed 7 on the saturating lid endoporus, processing ring-type common pressure chamber 12, common pressure chamber 12 have several drain boleses 11 to communicate with the external world, and are furnished with plug 5.3 between the inside and outside sealing of axle journal; Thereby realize bearing bore not in cooling chamber or abominable external environment condition direct neighbor, thereby can guarantee that cooling water or extraneous dirt can not enter bearing bore, and then effectively guarantee the normal use of bearing;

Covering thoroughly of bearing support inboard, cooling chamber 8 is set, and (cooling chamber can be designed to overall structure as required or divide body structure, install with convenient), and dispose the plural mouth of a river 13, connect recirculated cooling water, so just can guarantee that the temperature of axle can not be delivered to bearing bore, the cooling water of same cooling chamber is also because the setting of common pressure chamber and drain boles, can not threaten bearing bore, also just realize the purpose that cooling water can't enter bearing bore.And cover thoroughly 5 with 1 pair of bearing of stifle 3 carry out axially locating; Bearing plate 3.1 is realized the axially locating of bearing 3 and axle 4 by bridge screw 3.2; Cooling chamber 8, cooling chamber sealing 8.1 is also by saturating lid screw 5.2 with cover 5 thoroughly and be fixed on together on the bearing support body 2; Sealing 6 in the axle journal, outer close 7 envelopes of axle journal then are placed on to be covered in 5 the axis hole.

In this case, need be on stifle 1 or the punching of appropriate position, the tapping of other member, so that bleed valve 9 is installed, it installs principle is to face to be easy to safeguard and external environment condition orientation preferably, so that the discharging of maintenance, adjustment and pressure.Obviously the pressure for vaporization in the bearing bore can in time obtain discharging, thereby guarantees the normal oil supply of oil filler 10.

In this case, the endoporus of saturating lid 5 need be processed the installation step hole of sealing 6, axle journal external sealed 7 in the axle journal so that sealing 6, axle journal external sealed 7 in the axle journal are installed, in axle journal, seal 6, need to process common pressure chamber 12 between the installation step hole of axle journal external sealed 7, common pressure chamber 12 has the drain boles 11 more than 2, drain boles 11 outside tapping, and configuration plug 5.3, remove plug 5.3, common pressure chamber 12 is and atmosphere is communicated with; The principle of removing plug 5.3 is to guarantee that common pressure chamber 12 always is in the orientation that environment is better and dirt is easy to discharge.Obviously, the pressure of the bearing bore side of sealing 6 can effectively guarantee like this that always greater than the pressure of common pressure chamber 12 sides lubricant grease does not leak in the axle journal; And the pressure of axle journal external sealed 7 cooling chambers 8 is also always greater than the pressure of common pressure chamber 12 sides, can guarantee that so also the current in the cooling chamber are not easy to enter common pressure chamber 12, enter common pressure chamber 12 even have grease or water to make, also can in time be discharged in the atmosphere by drain boles 11; The existence of pressure has simultaneously also realized the wear compensation of sealing; And the current in the cooling chamber 8 and the perforation of bearing bore are also avoided in the existence of common pressure chamber 12, have also just guaranteed the working environment of bearing.

When needs clean common pressure chamber 12, can remove the plug 5.3 of a plurality of drain boleses 11, can utilize water, wind etc. to safeguard.

In this case, being provided with of drain boles 11 of covering thoroughly on 5 must be staggered with the mounting hole of saturating lid screw 5.2.

Embodiment 2, consult Fig. 2, are example with the simplified structure; A kind of bearing support, its structure is substantially the same manner as Example 1, and difference is to remove cooling chamber 8, cooling chamber sealing 8.1.Axle journal external sealed 7 directly contacts external environment condition.Obviously, axle journal external sealed 7 can effectively hinder foreign material such as the wind, water, dust of external environment condition, enters common pressure chamber 12 even outside foreign material see through axle journal external sealed 7, also can enter atmosphere from drain boles 11, and can not threaten sealing 6 in the axle journal, thereby guaranteed the proper functioning of bearing.

The utility model uses using scope extensive, can be applicable to all known greases that utilize and is lubricated, (especially external temperature 〉=400 ℃) that external temperature is higher or the relatively poor bearing support use occasion of external environment; Wherein be suitable for need be to other member or object is protected and needs are forced cooling bearing support field of employment for embodiment 1; Embodiment 2 then is suitable for utilizing external cooling water to carry out the axle journal cooling, or wind, water, dust more occasion use.

Claims (3)

1. bearing support, mainly comprise bearing support body, stifle, saturating lid, bleed valve is set on the stifle, stifle and saturating lid are respectively by stifle screw and two end faces of saturating lid screw at the bearing support body, sealing in the configuration axle journal, axle journal external sealed on the saturating lid endoporus, it is characterized in that being processed with the ring-type common pressure chamber between the inside and outside sealing of axle journal, common pressure chamber has several drain boleses to communicate with the external world, and is furnished with plug.

2. a kind of bearing support according to claim 1 is characterized in that: covering thoroughly of bearing support inboard, cooling chamber is set, cooling chamber is provided with the mouth of a river that connects recirculated cooling water more than two.

3. a kind of bearing support according to claim 1 is characterized in that: described cooling chamber is integral body or split.

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