CN202900744U - Bearing box of axial flow fan - Google Patents

Bearing box of axial flow fan Download PDF

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Publication number
CN202900744U
CN202900744U CN 201220584420 CN201220584420U CN202900744U CN 202900744 U CN202900744 U CN 202900744U CN 201220584420 CN201220584420 CN 201220584420 CN 201220584420 U CN201220584420 U CN 201220584420U CN 202900744 U CN202900744 U CN 202900744U
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CN
China
Prior art keywords
bearing
bearing housing
axial
mounting platform
outermost
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN 201220584420
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Chinese (zh)
Inventor
郑新华
张和义
谢海军
许建峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanxi Julong Fan & Blowers Co Ltd
Original Assignee
Shanxi Julong Fan & Blowers Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanxi Julong Fan & Blowers Co Ltd filed Critical Shanxi Julong Fan & Blowers Co Ltd
Priority to CN 201220584420 priority Critical patent/CN202900744U/en
Application granted granted Critical
Publication of CN202900744U publication Critical patent/CN202900744U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a bearing box of an axial flow fan. A bearing mounting table is arranged on a spindle on one side of a fixed end in the bearing box. A reversing axial bearing, a washer, a forward axial bearing, another washer, an oil spraying backing sleeve, a radial bearing and another washer are sequentially mounted on the bearing mounting table from inside to outside, a circular fastening nut is arranged outermost, a sealing ring mounting table is arranged on the outer side of the bearing mounting table, and the outermost end of the bearing mounting table is provided with an impeller mounting key shaft extending out of the bearing box. The bearing mounting table is also mounted on the spindle on one side of a free end in the bearing box, a radial bearing and a sealing ring are sequentially mounted on the bearing mounting table from inside to outside, and the outermost end of the bearing mounting table is provided with a power connecting key shaft extending out of the bearing box. The bearing box can bear axial force in normal running of the fan and reverse axial force in reverse running of the fan at the same time, and is longer in service life and higher in reliability.

Description

The axial-flow blower bearing housing
Affiliated technical field
The utility model belongs to a kind of impeller blade support device of large-scale mine propeller fan, is a kind of bearing housing of axial-flow blower specifically.
Background technique
Axial-flow blower is the ventilating machinary that ensures the large-scale mine safety in production, and its reliability and working life are most important.Because during mining large axial flow fan operation, axial force is large, and the inverted ventilation requirement is arranged, and namely will bear the axial force of normal operation, opposite shaft orientation power when also wanting to bear the blower fan inverted running, the impeller of large axial flow fan or blade must be installed on the special bearing housing.The bearing housing that the major vendor of domestic production bearing housing produces is mainly used in centrifugal blower, and it is lubricated that its lubricating system mostly is the oil sump spilled oil, can't satisfy the requirement of axial-flow blower larger axial force and operational safety.
Summary of the invention
The utility model is exactly a kind of axial-flow blower bearing housing for the shortcoming design of prior art.
The technological scheme that its technical problem that solves the utility model adopts is: design a kind of axial-flow blower bearing housing, formed by shell, main shaft and spring bearing etc., the main shaft of fixed end one side is provided with the bearing mounting platform in the bearing housing, reverse cod, packing ring, forward cod, packing ring and oil spout cushion cover, radial bearing, packing ring are housed on the bearing mounting platform from inside to outside successively, outermost is fastening round nut, the bearing mounting platform outside is the seal ring mounting platform, and outermost end is stretched out bearing housing and is impeller fitting key axle outward; Also be provided with the bearing mounting platform on the main shaft of end one side of moving about in the bearing housing, radial bearing, seal ring are housed on the bearing mounting platform from inside to outside successively, outermost end is stretched out bearing housing and is power connecting key axle outward; Be provided with corresponding bearing in the bearing housing interior platform is installed, bearing box cover is equipped with at the bearing housing two ends.The most inboard spring axial pretightening device that also is equipped with of fixed end one side in the bearing housing, the most inboard oil spout cushion cover that also is equipped with of end one side of moving about also is equipped with oily dam packing ring between the bearing box cover at bearing housing two ends and the bearing; Tank filler sleeve is arranged on the bearing box cover, and bearing housing is equipped with oil pump and lubrication oil supply pipeline outward.
The beneficial effects of the utility model are that bearing housing can bear the axial force of the normal operation of blower fan, the opposite shaft orientation power in the time of also can bearing the blower fan inverted running, prolongation in working life, Reliability Enhancement.
Description of drawings
Fig. 1 is overall structure generalized section of the present utility model.
Fig. 2 is spring axial pretightening apparatus structure schematic diagram of the present utility model.
Fig. 3, Fig. 4 are oily dam of the present utility model gasket construction schematic diagram
Embodiment
Make the axial-flow blower bearing housing, formed by shell 17, main shaft 12 and spring bearing etc., the main shaft 12 of right side fixed end one side is provided with the bearing mounting platform in the bearing housing, reverse cod 3, packing ring 9, forward cod 4, packing ring 5 and oil spout cushion cover 7, radial bearing 2, packing ring 10 are housed on the bearing mounting platform from inside to outside successively, outermost is fastening round nut 11, the bearing mounting platform outside is seal ring 13 mounting platforms, and outermost end is stretched out and is impeller fitting key axle outside the bearing housing 17; Also be provided with the bearing mounting platform on the main shaft 12 of end one side of moving about in bearing housing 17 interior left sides, radial bearing 1, seal ring 14 are housed on the bearing mounting platform from inside to outside successively, outermost end is stretched out bearing housing and is power connecting key axle outward; Be provided with corresponding bearing in the bearing housing 17 interior platform is installed, bearing box cover 18,19 is equipped with at bearing housing 17 two ends.The most inboard spring axial pretightening device 6 that also is equipped with of bearing housing 17 interior fixed end one sides, move about the end one side the most inboard oil spout cushion cover 8 that also is equipped with, the bearing box cover 18 at bearing housing 17 two ends, 19 and bearing between oily dam packing ring 15,16 also is housed; On the bearing box cover 18,19 tank filler sleeve is arranged, bearing housing is equipped with oil pump and lubrication oil supply pipeline outward, and bearing housing is equipped with suspension ring 22 outward.
According to the Force Calculation result, we select the 7xx series bearing of suitable size to bear axial force, select Nuxx series bearing bearing radial force; Lubricating system is the thin oil pressure lubrication; Sealing means is oily dam and the sealing of W type.Sealed at both ends circle 13,14 and axle 12 drive fits rotates with axle 12, and its Excircle machining has W type sealing configuration, forms little Spielpassung with bearing box cover 18,19, realizes sealing.6 pairs of reverse cods 3 of fixed end spring axial pretightening device carry out pretension, and therefore the only work in inverted ventilation of this bearing need pre-pressing structure that it is carried out pretension, to prolong this bearing life.Pressure lubrication oil by oil spout packing ring 7,8 to cod and radial bearing fuel feeding, to realize lubrication and cooling; During normal operation, axial force is born by bearing box cover 18 in the outer ring of forward cod 4, during inverted ventilation work, oppositely axial force is born by pre-tightening apparatus, casing boss in the outer ring of cod 3, two cods 3,4 preset clearance in the middle of bearing outer ring satisfies the axial displacement that the bearing expanded by heating forms.

Claims (2)

1. axial-flow blower bearing housing, formed by shell, main shaft and spring bearing etc., it is characterized in that: the main shaft of fixed end one side is provided with the bearing mounting platform in the bearing housing, reverse cod, packing ring, forward cod, packing ring and oil spout cushion cover, radial bearing, packing ring are housed on the bearing mounting platform from inside to outside successively, outermost is fastening round nut, the bearing mounting platform outside is the seal ring mounting platform, and outermost end is stretched out bearing housing and is impeller fitting key axle outward; Also be provided with the bearing mounting platform on the main shaft of end one side of moving about in the bearing housing, radial bearing, seal ring are housed on the bearing mounting platform from inside to outside successively, outermost end is stretched out bearing housing and is power connecting key axle outward; Be provided with corresponding bearing in the bearing housing interior platform is installed, bearing box cover is equipped with at the bearing housing two ends.
2. axial-flow blower bearing housing as claimed in claim 1, it is characterized in that: the most inboard spring axial pretightening device that also is equipped with of fixed end one side in the bearing housing, the most inboard oil spout cushion cover that also is equipped with of end one side of moving about also is equipped with oily dam packing ring between the bearing box cover at bearing housing two ends and the bearing; Tank filler sleeve is arranged on the bearing box cover, and bearing housing is equipped with oil pump and lubrication oil supply pipeline outward.
CN 201220584420 2012-10-29 2012-10-29 Bearing box of axial flow fan Active CN202900744U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220584420 CN202900744U (en) 2012-10-29 2012-10-29 Bearing box of axial flow fan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220584420 CN202900744U (en) 2012-10-29 2012-10-29 Bearing box of axial flow fan

Publications (1)

Publication Number Publication Date
CN202900744U true CN202900744U (en) 2013-04-24

Family

ID=48121421

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220584420 Active CN202900744U (en) 2012-10-29 2012-10-29 Bearing box of axial flow fan

Country Status (1)

Country Link
CN (1) CN202900744U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111852933A (en) * 2020-07-24 2020-10-30 贵州永红航空机械有限责任公司 Bearing pressure balance structure of fan supporting system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111852933A (en) * 2020-07-24 2020-10-30 贵州永红航空机械有限责任公司 Bearing pressure balance structure of fan supporting system
CN111852933B (en) * 2020-07-24 2021-03-16 大连理工大学 Bearing pressure balance structure of fan supporting system

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