CN201103686Y - Principal shaft sealing device - Google Patents

Principal shaft sealing device Download PDF

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Publication number
CN201103686Y
CN201103686Y CNU2007200144910U CN200720014491U CN201103686Y CN 201103686 Y CN201103686 Y CN 201103686Y CN U2007200144910 U CNU2007200144910 U CN U2007200144910U CN 200720014491 U CN200720014491 U CN 200720014491U CN 201103686 Y CN201103686 Y CN 201103686Y
Authority
CN
China
Prior art keywords
main shaft
main spindle
flange plate
lip
sealing device
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.)
Expired - Fee Related
Application number
CNU2007200144910U
Other languages
Chinese (zh)
Inventor
吴凯
李芳�
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.)
DALIAN HUAGEN MACHINERY Co Ltd
Original Assignee
DALIAN HUAGEN MACHINERY 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 DALIAN HUAGEN MACHINERY Co Ltd filed Critical DALIAN HUAGEN MACHINERY Co Ltd
Priority to CNU2007200144910U priority Critical patent/CN201103686Y/en
Application granted granted Critical
Publication of CN201103686Y publication Critical patent/CN201103686Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a sealing device, which particularly relates to a sealing device with a rigid short main spindle used in a lathe, comprising a main spindle (1) arranged in a main spindle box (10) by a bearing and a flange disc (5) sheathed on the main spindle (1) and connected on the main spindle box (10); the sealing between the flange disc (5) and the main spindle (1) is air seal; the utility model is characterized in that: a sealing ring (2) is sheathed on the main spindle (1) inside the flange disc (5); a lip-type sealing ring (6) is sheathed on the main spindle (1) outside the flange disc (5); the lip-type sealing ring (6) is arranged in a groove on a centrifugal hoop (7) fixed on the main spindle (1); and the lip of the lip-type sealing ring (6) faces to one side of the flange disc (5). The sealing device with the rigid short main spindle improves the sealability and strictly prevents cutting fluid from entering the inner side of the main spindle box, which prolongs the service life of the bearing, and further prevents the lubricating oil at the inner side of the main spindle box from leaking out at the same time.

Description

Main shaft sealing device
Technical field
The utility model relates to a kind of seal arrangement, particularly a kind of short sealing of spindles device of rigidity that is used on the lathe.
Background technique
The short main shaft of rigidity on the lathe with Bearing Installation in the main shaft casing, it is external that the part of main shaft is stretched out headstock, stretch out the place at main shaft and be set with flange plate, flange plate is fixed on the main shaft casing, be processed with air passageways on the main shaft casing He on the flange plate, air passageways extend into the endoporus of flange plate and the gap location that main shaft forms, during work, by the pressurized air supplier pressurized air is delivered between flange plate and the main shaft through air passageways, formed gas seal herein.The gas sealing structure sealing effect of the short main shaft of this rigidity is poor, when big flow dashes bits, understands some cutting fluid and enters in the headstock through gas seal place, can produce corrosive action to the bearing in the main shaft casing, influences the use group life of bearing.
Summary of the invention
The technical problems to be solved in the utility model is the problem that the short main shaft gas seal of existing rigidity sternly, does not easily cause the corrosion of headstock inner bearing, at the problems referred to above, the purpose of this utility model provides a kind of simple in structure, good sealing effect, the prolongation main shaft casing inner bearing main shaft sealing device in working life, overcomes the deficiencies in the prior art.
Main shaft sealing device of the present utility model, it comprise with Bearing Installation in main shaft casing 10 main shaft 1 and be sleeved on the main shaft 1 and be connected flange plate 5 on the main shaft casing 10, be gas seal between flange plate 5 and the main shaft 1, it is characterized in that: on the inboard main shaft 1 of flange plate 5, be set with seal ring 2, on the outside of flange plate 5 main shaft 1, be set with lip-type packing 6, lip-type packing 6 is positioned at the groove on the centrifugal hoop 7 that is fixed on the main shaft 1, and the lip limit of lip-type packing 6 is towards flange plate 5 one sides.
Main shaft sealing device of the present utility model, wherein said seal ring 2 is positioned at the groove on the flange plate 3, and flange plate 3 is fixed between flange plate 5 and the main shaft casing 10.
Main shaft sealing device of the present utility model is provided with the lining 4 of high-abrasive material between wherein said seal ring 2 and the main shaft 1.
Main shaft sealing device of the present utility model, owing on the inboard main shaft 1 of flange plate 5, be set with seal ring 2, on the outside of flange plate 5 main shaft 1, be set with lip-type packing 6, lip-type packing 6 is positioned at the groove on the centrifugal hoop 7 that is fixed on the main shaft 1, and sealability has been improved towards flange plate 5 one sides in the lip limit of lip-type packing 6, and strictness has been controlled cutting fluid and entered the main shaft box inside, can prolong the working life of bearing, also further stop the lubricant oil of main shaft box inside to leak simultaneously.
Description of drawings
Fig. 1 is the structural representation of the utility model main shaft sealing device.
Embodiment
As shown in the figure: 1 is main shaft, with bearing main shaft 1 is installed in the main shaft casing 10.The part of main shaft 1 is stretched out the outside of main shaft casing 10, be fixedly connected with flange plate 3 and flange plate 5 at the termination of main shaft casing 10 bolt, flange plate 3 and flange plate 5 all are sleeved on the main shaft 1, on main shaft casing 10, flange plate 3 and flange plate 5, be processed with the air passageways 8 that is connected, air passageways 8 is communicated to the gap location of flange plate 5 and main shaft 1, during work, compressed air feeder infeeds pressurized air in air passageways 8, forms gas seal between flange plate 5 and main shaft 1.Be processed with groove on flange plate 3, seal ring 2 places in this groove and is enclosed within on the main shaft 1, is set with the lining 4 of high-abrasive material between seal ring 2 and main shaft 1, and lining 4 is fastened on the main shaft 1, rotates with main shaft 1.Seal ring 2 can stop the bearing oil in the main shaft casing 8 excessive.Fixed cover is equipped with centrifugal hoop 7 on the main shaft 1 of the outside of flange plate 5, endoporus place at centrifugal hoop 7 is processed with groove, be provided with the lip-type packing 6 that is sleeved on the main shaft 1 in this groove, the lip limit of lip-type packing 6 contacts towards flange plate 5 one sides and with the end face of flange plate 5, during work, when pressurized air enters, the pressure of gas can make the lip limit break away from flange plate 5, rotates with main shaft 1 and centrifugal hoop 7.Owing to be respectively equipped with seal ring in the both sides of gas seal place, further strengthened sealing of spindles.

Claims (3)

1, a kind of main shaft sealing device, it comprise with Bearing Installation in main shaft casing (10) main shaft (1) and be sleeved on main shaft (1) and go up and be connected flange plate (5) on the main shaft casing (10), be gas seal between flange plate (5) and the main shaft (1), it is characterized in that: on the inboard main shaft (1) of flange plate (5), be set with seal ring (2), on the outside main shaft (1) of flange plate (5), be set with lip-type packing (6), lip-type packing (6) is positioned at the groove on the centrifugal hoop (7) that is fixed on the main shaft (1), and the lip limit of lip-type packing (6) is towards flange plate (5) one sides.
2, main shaft sealing device according to claim 1 is characterized in that: described seal ring (2) is positioned at the groove on the flange plate (3), and flange plate (3) is fixed between flange plate (5) and the main shaft casing (10).
3, main shaft sealing device according to claim 2 is characterized in that: the lining (4) that is provided with high-abrasive material between described seal ring (2) and the main shaft (1).
CNU2007200144910U 2007-09-11 2007-09-11 Principal shaft sealing device Expired - Fee Related CN201103686Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2007200144910U CN201103686Y (en) 2007-09-11 2007-09-11 Principal shaft sealing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2007200144910U CN201103686Y (en) 2007-09-11 2007-09-11 Principal shaft sealing device

Publications (1)

Publication Number Publication Date
CN201103686Y true CN201103686Y (en) 2008-08-20

Family

ID=39950712

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2007200144910U Expired - Fee Related CN201103686Y (en) 2007-09-11 2007-09-11 Principal shaft sealing device

Country Status (1)

Country Link
CN (1) CN201103686Y (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101941160B (en) * 2008-09-24 2012-05-09 山崎马扎克公司 Milling spindle of machine tool
CN104214351A (en) * 2014-07-31 2014-12-17 北京机电院机床有限公司 Airtight seal design method of machine tool main shaft
CN106838010A (en) * 2017-02-08 2017-06-13 中国航发沈阳发动机研究所 The base bearing holding meanss component and aero-engine of a kind of aero-engine
TWI587948B (en) * 2012-03-30 2017-06-21 Citizen Machinery Co Ltd Processing equipment
CN107237890A (en) * 2017-08-07 2017-10-10 中国重型机械研究院股份公司 Sealing structure and encapsulating method under a kind of bad working environments
CN107237827A (en) * 2016-03-28 2017-10-10 沈阳海默数控机床有限公司 A kind of sealing structure of machine tool chief axis
CN110405528A (en) * 2019-07-31 2019-11-05 哈尔滨锅炉厂有限责任公司 The anti-iron filings device of tube end maching

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101941160B (en) * 2008-09-24 2012-05-09 山崎马扎克公司 Milling spindle of machine tool
TWI587948B (en) * 2012-03-30 2017-06-21 Citizen Machinery Co Ltd Processing equipment
CN104214351A (en) * 2014-07-31 2014-12-17 北京机电院机床有限公司 Airtight seal design method of machine tool main shaft
CN104214351B (en) * 2014-07-31 2016-04-20 北京机电院机床有限公司 A kind of hermetic seal design method of machine tool chief axis
CN107237827A (en) * 2016-03-28 2017-10-10 沈阳海默数控机床有限公司 A kind of sealing structure of machine tool chief axis
CN106838010A (en) * 2017-02-08 2017-06-13 中国航发沈阳发动机研究所 The base bearing holding meanss component and aero-engine of a kind of aero-engine
CN106838010B (en) * 2017-02-08 2019-06-28 中国航发沈阳发动机研究所 A kind of the base bearing holding meanss component and aero-engine of aero-engine
CN107237890A (en) * 2017-08-07 2017-10-10 中国重型机械研究院股份公司 Sealing structure and encapsulating method under a kind of bad working environments
CN110405528A (en) * 2019-07-31 2019-11-05 哈尔滨锅炉厂有限责任公司 The anti-iron filings device of tube end maching

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20080820

Termination date: 20120911