CN102278474A - Contact type dynamic sealing method and dynamic sealing device of dishing sealing ring - Google Patents

Contact type dynamic sealing method and dynamic sealing device of dishing sealing ring Download PDF

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Publication number
CN102278474A
CN102278474A CN2011101560134A CN201110156013A CN102278474A CN 102278474 A CN102278474 A CN 102278474A CN 2011101560134 A CN2011101560134 A CN 2011101560134A CN 201110156013 A CN201110156013 A CN 201110156013A CN 102278474 A CN102278474 A CN 102278474A
Authority
CN
China
Prior art keywords
ring
bearing
sealing washer
sealing
seal
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.)
Pending
Application number
CN2011101560134A
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Chinese (zh)
Inventor
孙海军
王琦玮
梁晓东
许宁
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.)
Anshan Heavy Duty Mining Machinery Co Ltd
Original Assignee
Anshan Heavy Duty Mining 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 Anshan Heavy Duty Mining Machinery Co Ltd filed Critical Anshan Heavy Duty Mining Machinery Co Ltd
Priority to CN2011101560134A priority Critical patent/CN102278474A/en
Publication of CN102278474A publication Critical patent/CN102278474A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a contact type dynamic sealing method and a dynamic sealing device of a dishing sealing ring, belonging to dynamic sealing devices of the field of mechanical transmission. The invention solves the problem of oil leakage caused by wearing and aging in the traditional leather cup sealing ring. A dishing sealing ring formed by a locating ring, an elastomer and at least sealing ring is arranged nearby leakage gaps of a transmission device, the locating ring of the sealing ring is installed on a journal of a transmission shaft or the inner side of a bearing sealing gland of a box body such that the locating ring of the sealing ring is in close contact with the inner surface of the bearing sealing gland or the side surface of a bearing baffle ring, and the leakage gaps between the transmission shaft and the bearing sealing gland of the box body are stopped so as to achieve the sealing purpose. The dishing sealing ring has various structural forms and has the characteristics of simple structure, convenience for installing, assembly and disassembly, favorable sealing effect and long life and is suitable for dust prevention of various transmission device box bodies and sealing of lubricating oil.

Description

Contact-type dynamic sealing method and dished sealing washer dynamic seal apparatus
Technical field
The invention belongs to the dynamic seal apparatus of mechanical transmission fields, mainly relate to carry out the leakage gap of mechanical transmission component the contact-type dynamic sealing method and the dished sealing washer dynamic seal apparatus of reliable sealing.
Background technique
Mechanical transmission fields generally is the mode that adopts cup packing to the sealing between transmission shaft and the casing at present.Utilize the lip of leather cup and be coupling and touch, the gap is revealed in blocking, reaches the purpose of sealing.This kind seal arrangement is applicable to the sealing of liquid, and is widely used in sealing lubricating oil or dustproof in the little transmission device of size.Because in the process of long-time running, there is the problem of wearing and tearing, temperature rise and the part aging of bearing, axle and seal ring in mechanical transmission.So the time has been grown and has weakened, sealed phenomenons such as bad and leakage of oil with regard to the elasticity that has seal ring.Especially when certain pressure is arranged in the casing, will speed up the generation of oil leakage phenomenon.
Summary of the invention
The purpose of this invention is to provide a kind of contact-type dynamic sealing method and dished sealing washer dynamic seal apparatus, the problem of leakage takes place because of aging and wearing and tearing in wearing and tearing and seal ring that the sealing device can effectively solve bearing and axle, and can the wearing and tearing of seal ring be compensated timely.
The present invention is achieved by the following measures, the contact-type dynamic sealing method is: near the leakage gap of transmission device, a dished sealing washer that is made of positioning ring, elastomer and seal ring is arranged, the positioning ring of sealing circle is installed on the axle journal of transmission shaft or the inboard of casing bearing seal gland, the seal ring of seal ring is closely contacted with the internal surface of bearing seal gland or the side of bearing baffle ring, the sealing to transmission device has been realized in leakage gap between blocking transmission shaft and the casing bearing seal gland.
A kind of dished sealing washer dynamic seal apparatus of realizing above-mentioned contact-type dynamic sealing method, mainly form by transmission device casing, bearing seal gland, bearing and transmission shaft, it is characterized in that: the bearing baffle ring is housed on the axle journal of transmission shaft, between bearing baffle ring and bearing seal gland, dished sealing washer is housed; Dished sealing washer is made of positioning ring, elastomer and seal ring, and the quantity of described seal ring has one at least, and a plurality of seal ring concentrics are provided with.
The mounting type of dished sealing washer is one of following dual mode: a, the positioning ring of dished sealing washer is sleeved on the axle journal of transmission shaft, and with the contacts side surfaces of bearing baffle ring, the seal ring of dished sealing washer is closely contacted with the internal surface of bearing seal gland; B, the positioning ring of dished sealing washer is installed in the annular groove of bearing seal gland inboard, the seal ring of dished sealing washer is closely contacted with the side of bearing baffle ring.
In order to guarantee the intensity of seal ring, when bigger or casing internal pressure is than higher service condition in specification, be provided with skeleton in the inside or the outside of dished sealing washer.
In order to adapt to the needs of various sealing structures, guarantee the effect of sealing, the elastomeric sectional shape of dished sealing washer is arc or lineal shape, also M shape, N shape, V-arrangement, W shape or U-shaped.
Firm for the installation that guarantees dished sealing washer on the bearing seal gland, the positioning ring with dished sealing washer in the annular groove of bearing seal gland inboard is provided with anti-slip projection.The size of bearing baffle ring is according to the mounting type decision of dished sealing washer.
The invention has the beneficial effects as follows that the size of dished sealing washer is not subjected to the restriction of installing space, can suitably strengthen the specification of its use according to the needs that seal.Under the elastomeric effect of seal ring, can be at any time the wearing and tearing of seal ring or bearing be compensated, keep the reliability of sealing forever.The leakage of a little if be in operation can only drain in the cavity that is formed by dished sealing washer, and under the operation action of centrifugal force, the lubricant oil of leakage will turn back in the casing.Pressure in the transmission device casing is not only harmless to revealing, and to the benefit that is sealed with of seal ring, pressure affacts on the seal ring on the contrary, and the effect of the big more sealing of pressure is good more.According to the needs of box sealing, can select the dished sealing washer of various structural types and mounting type.Have long characteristics of simple in structure, easy installation and removal, good sealing effect and life-span, be applicable to the dustproof of various transmission device casings and the sealing of lubricant oil.
Description of drawings
Fig. 1 is that dished sealing washer of the present invention is installed in the assembling schematic representation on the transmission shaft; Fig. 2 is that dished sealing washer of the present invention is installed in the assembling schematic representation on the bearing seal gland; Fig. 3 is mounted in the dished sealing washer schematic representation on the transmission shaft; Fig. 4 is mounted in the dished sealing washer schematic representation on the bearing seal gland.
1 is transmission device casing, the 2nd among the figure, bearing seal gland, the 3rd, bearing, the 4th, dished sealing washer, the 5th, bearing baffle ring, the 6th, transmission shaft, the 7th, the positioning ring of dished sealing washer, the 8th, the elastomer of dished sealing washer, the 9th, the seal ring of dished sealing washer.
Embodiment
The contact-type dynamic sealing method is: near the leakage gap of transmission device, a dished sealing washer that is made of positioning ring, elastomer and seal ring is arranged, the positioning ring of sealing circle is installed on the axle journal of transmission shaft or the inboard of casing bearing seal gland, the seal ring of seal ring is closely contacted with the internal surface of bearing seal gland or the side of bearing baffle ring, the sealing to transmission device has been realized in leakage gap between blocking transmission shaft and the casing bearing seal gland.
Below in conjunction with the description of drawings embodiments of the invention, mainly form by transmission device casing 1, bearing seal gland 2, bearing 3 and transmission shaft 6.Bearing baffle ring 5 is housed on the axle journal of transmission shaft 6, between bearing baffle ring 5 and bearing seal gland 2, dished sealing washer 4 is housed; Dished sealing washer 4 is made of positioning ring 7, elastomer 8 and seal ring 9, and the quantity of described seal ring 9 is three, three seal ring 9 concentric settings.
The mounting type of dished sealing washer 4 is: the positioning ring 7 of dished sealing washer 4 is sleeved on the axle journal of transmission shaft 6, and with the contacts side surfaces of bearing baffle ring 5, the seal ring 9 of dished sealing washer 4 is closely contacted with the internal surface of bearing seal gland 2; Perhaps the positioning ring 7 with dished sealing washer 4 is installed in the annular groove of bearing seal gland 2 inboards, and the seal ring 9 of dished sealing washer 4 is closely contacted with the side of bearing baffle ring 5.

Claims (5)

1. contact-type dynamic sealing method, it is characterized in that: near the leakage gap of transmission device, a dished sealing washer that is made of positioning ring, elastomer and seal ring is arranged, the positioning ring of sealing circle is installed on the axle journal of transmission shaft or the inboard of casing bearing seal gland, the seal ring of seal ring is closely contacted with the internal surface of bearing seal gland or the side of bearing baffle ring, the sealing to transmission device has been realized in leakage gap between blocking transmission shaft and the casing bearing seal gland.
2. dished sealing washer dynamic seal apparatus of realizing the described contact-type dynamic sealing method of claim 1, mainly form by transmission device casing ⑴, bearing seal gland ⑵, bearing ⑶ and transmission shaft ⑹, it is characterized in that: bearing baffle ring ⑸ is housed on the axle journal of transmission shaft ⑹, between bearing baffle ring ⑸ and bearing seal gland ⑵, dished sealing washer ⑷ is housed; Dished sealing washer ⑷ is made of positioning ring ⑺, elastomer ⑻ and seal ring ⑼, and the quantity of described seal ring ⑼ has one at least, and a plurality of seal ring concentrics are provided with;
The mounting type of dished sealing washer ⑷ is one of following dual mode: a, the positioning ring ⑺ of dished sealing washer is sleeved on the axle journal of transmission shaft ⑹, and with the contacts side surfaces of bearing baffle ring ⑸, the seal ring ⑼ of dished sealing washer is closely contacted with the internal surface of bearing seal gland ⑵; B, the positioning ring ⑺ of dished sealing washer is installed in the annular groove of bearing seal gland ⑵ inboard, the seal ring ⑼ of dished sealing washer is closely contacted with the side of bearing baffle ring ⑸.
3. dished sealing washer dynamic seal apparatus according to claim 2 is characterized in that: inside or outside at dished sealing washer ⑷ are provided with skeleton.
4. dished sealing washer dynamic seal apparatus according to claim 2 is characterized in that: the sectional shape of dished sealing washer elastomer ⑻ is arc or lineal shape, also M shape, N shape, V-arrangement, W shape or U-shaped.
5. dished sealing washer dynamic seal apparatus according to claim 2 is characterized in that: the positioning ring with dished sealing washer in the annular groove of bearing seal gland ⑵ inboard is provided with anti-slip projection.
CN2011101560134A 2011-06-12 2011-06-12 Contact type dynamic sealing method and dynamic sealing device of dishing sealing ring Pending CN102278474A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011101560134A CN102278474A (en) 2011-06-12 2011-06-12 Contact type dynamic sealing method and dynamic sealing device of dishing sealing ring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011101560134A CN102278474A (en) 2011-06-12 2011-06-12 Contact type dynamic sealing method and dynamic sealing device of dishing sealing ring

Publications (1)

Publication Number Publication Date
CN102278474A true CN102278474A (en) 2011-12-14

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011101560134A Pending CN102278474A (en) 2011-06-12 2011-06-12 Contact type dynamic sealing method and dynamic sealing device of dishing sealing ring

Country Status (1)

Country Link
CN (1) CN102278474A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103398176A (en) * 2013-07-26 2013-11-20 苏州天华有色金属制品有限公司 Shaft seal ring
CN104675968A (en) * 2013-11-26 2015-06-03 朱杏生 Pumping unit speed reducer shaft head sealing structure

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006010055A (en) * 2004-05-21 2006-01-12 Nsk Ltd Bearing device
CN101251191A (en) * 2008-03-28 2008-08-27 宁波东力传动设备股份有限公司 Combined seal structure for overloading gear case high speed axis
CN201110379Y (en) * 2007-12-05 2008-09-03 孙乐宁 Combined oil seal for rotational shaft
CN201177042Y (en) * 2008-03-28 2009-01-07 宁波东力传动设备股份有限公司 Combination type sealing structure for heavy-duty gear box high speed axis
CN201218171Y (en) * 2008-07-09 2009-04-08 宁波恒力液压机械制造有限公司 Unidirectional hydraulic axial variable displacement plunger pump
CN201661685U (en) * 2010-04-27 2010-12-01 常州朗博汽车零部件有限公司 Framework lip-shaped seal ring for fracture-resistant rotary shaft

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006010055A (en) * 2004-05-21 2006-01-12 Nsk Ltd Bearing device
CN201110379Y (en) * 2007-12-05 2008-09-03 孙乐宁 Combined oil seal for rotational shaft
CN101251191A (en) * 2008-03-28 2008-08-27 宁波东力传动设备股份有限公司 Combined seal structure for overloading gear case high speed axis
CN201177042Y (en) * 2008-03-28 2009-01-07 宁波东力传动设备股份有限公司 Combination type sealing structure for heavy-duty gear box high speed axis
CN201218171Y (en) * 2008-07-09 2009-04-08 宁波恒力液压机械制造有限公司 Unidirectional hydraulic axial variable displacement plunger pump
CN201661685U (en) * 2010-04-27 2010-12-01 常州朗博汽车零部件有限公司 Framework lip-shaped seal ring for fracture-resistant rotary shaft

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103398176A (en) * 2013-07-26 2013-11-20 苏州天华有色金属制品有限公司 Shaft seal ring
CN104675968A (en) * 2013-11-26 2015-06-03 朱杏生 Pumping unit speed reducer shaft head sealing structure

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Application publication date: 20111214