CN104405882A - Shaft seal - Google Patents

Shaft seal Download PDF

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Publication number
CN104405882A
CN104405882A CN201410704407.2A CN201410704407A CN104405882A CN 104405882 A CN104405882 A CN 104405882A CN 201410704407 A CN201410704407 A CN 201410704407A CN 104405882 A CN104405882 A CN 104405882A
Authority
CN
China
Prior art keywords
ring
hole
rotating
shaft seal
seat
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.)
Granted
Application number
CN201410704407.2A
Other languages
Chinese (zh)
Other versions
CN104405882B (en
Inventor
胡炜平
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.)
Jiangsu champion industrial seal Co., Ltd.
Original Assignee
胡炜平
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 胡炜平 filed Critical 胡炜平
Priority to CN201410704407.2A priority Critical patent/CN104405882B/en
Publication of CN104405882A publication Critical patent/CN104405882A/en
Application granted granted Critical
Publication of CN104405882B publication Critical patent/CN104405882B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J15/00Sealings
    • F16J15/16Sealings between relatively-moving surfaces
    • F16J15/26Sealings between relatively-moving surfaces with stuffing-boxes for rigid sealing rings
    • F16J15/30Sealings between relatively-moving surfaces with stuffing-boxes for rigid sealing rings with sealing rings made of carbon
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J15/00Sealings
    • F16J15/16Sealings between relatively-moving surfaces
    • F16J15/34Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member

Abstract

The invention relates to a shaft seal. The shaft seal comprises a dynamic ring and a dynamic ring seat which are rotatably matched with each other; a limiting ring is arranged on the inner wall of a first step hole in the dynamic ring seat; an annular cavity is formed between the inner wall of the first step hole, the limiting ring, and the outer wall of the dynamic ring; a dynamic ring O-shaped ring for sealing is limited into the cavity; an annular groove adapted to be positioned and sealed and matched with the dynamic ring O-shaped ring is arranged in the outer wall of the dynamic ring. According to the shaft seal, the annular groove is positioned in match with the dynamic ring O-shaped ring during mounting the dynamic ring and the dynamic ring seat, thus the deformation elasticity of the dynamic ring O-shaped ring acts on the dynamic ring, and the dynamic ring is limited by the limiting ring through the dynamic ring O-shaped ring, and as a result, the dynamic ring is stopped separating from the dynamic ring seat; the shaft seal is convenient to mount, and the reliability and mounting efficiency of the shaft seal can be improved.

Description

A kind of shaft seal
Technical field
The present invention relates to a kind of shaft seal, the reliability of especially installing and the higher shaft seal of installation efficiency.
Background technique
Bearing of the prior art comprises rotating ring and rotating seat, and in installation process, rotating ring easily departs from from described rotating seat.Be unfavorable for producing and install, and then the lower reliability of product.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of installation reliability and the higher shaft seal of installation efficiency, when in rotating ring and rotating seat rotation process, departs from when preventing from moving axially in the driven ring seat of rotating ring.
In order to solve the problems of the technologies described above, the invention provides a kind of shaft seal, it comprises: the rotating ring be mutually rotatably assorted and rotating seat, the inwall in the first step hole on rotating seat is provided with protruding limited ring, form the cavity of an annular between the outer wall of the inwall in first step hole, limited ring and rotating ring, be limited in this cavity for the rotating ring O shape circle sealed.The outer wall of rotating ring is provided with an annular groove, annular groove is suitable for drawing a circle to approve position with rotating ring O shape, being sealed and matched, in installation process, annular groove and rotating ring O shape enclose location fit, the distortion elastic force that rotating ring O shape is enclosed acts on rotating ring, and then makes described limited ring by the spacing described rotating ring of described rotating ring O shape circle, and then hinders only this rotating ring to depart from from described rotating seat, facilitate installation, improve reliability and the installation efficiency of shaft seal installation.
The outer middle side part of rotating ring is provided with ring-shaped step and the step axial plane of an inside indentation, ring-shaped step coordinates with limited ring is spacing, described toroidal cavity is formed by the outer wall of the inwall in first step hole, limited ring and step axial plane, and annular groove is located on the outer wall of this step axial plane.
The bottom of rotating ring is provided with multiple locating slot, is respectively equipped with one containing the slide blocks of graphite in each locating slot, and on rotating seat and the below being positioned at first step hole is provided with second step hole, the step surface on the downside of slide blocks and second step hole is slidably matched.
On rotating seat and the downside being positioned at second step hole is provided with the 3rd step hole, the mounting groove of annular is located on the inwall of the 3rd step hole, and rotating seat O shape circle is located in this mounting groove, and rotating seat O shape circle is used for moving sealing ring seat and the axle be arranged in rotating seat.
On the sidewall of the 3rd step hole and the below being positioned at mounting groove is provided with multiple screw hole, be respectively equipped with one in each screw hole for the screw of stationary axle.
Relative to prior art, the technique effect that the present invention has is: (1) rotating ring and rotating seat are in installation process, annular groove and rotating ring O shape enclose location fit, the distortion elastic force that rotating ring O shape is enclosed acts on rotating ring, and then make described limited ring by the spacing described rotating ring of described rotating ring O shape circle, and then hinder only this rotating ring to depart from from described rotating seat, facilitate installation, improve reliability and the installation efficiency of shaft seal installation.(2) ring-shaped step carries out spacing cooperation with the upper side of limited ring, and restriction rotating ring is relative to the downward axial displacement of rotating seat further.(3) step surface on the downside of the slide blocks containing graphite and second step hole is slidably matched, and can make this step surface adheres to one deck plumbago in rotation process, increases lubrication effect when rotating ring bottom surface and second step face are slidably matched.(4) rotating seat O shape circle is sealed and matched with the axle be arranged in rotating seat.(5) screw coordinates with screw hole for being fixedly connected with rotating seat by the axle be arranged in rotating seat.
Accompanying drawing explanation
In order to clearly demonstrate innovative principle of the present invention and the technical advantage compared to existing product thereof, by the limiting examples applying described principle, possible embodiment is described by means of accompanying drawing below.In the drawings:
Fig. 1 is the stereogram of shaft seal in the present invention;
Fig. 2 is the plan view of shaft seal in the present invention;
Fig. 3 is the A-A sectional view of shaft seal in the present invention;
Fig. 4 is the cutaway view Amplified image of rotating ring in shaft seal in the present invention;
Fig. 5 is the cutaway view Amplified image of rotating seat in shaft seal in the present invention.
Embodiment
As Figure 1-5, described shaft seal comprises rotating ring 1, rotating seat 2, screw 3, rotating ring O shape circle 4, rotating seat O shape circle 5, slide blocks 6.
Rotating ring 1 is the cylindrical body terraced structure of hollow, and the outer middle side part of rotating ring 1 is provided with ring-shaped step 101 and the step axial plane 104 of an inside indentation, and step axial plane 104 is provided with an annular groove 102; Rotating seat 2 is hollow cylindrical structure, its inside is provided with first step hole 201, second step hole 202 and the 3rd step hole 203 from top to bottom successively, the lower inner wall of the 3rd step hole 203 is also provided with the mounting groove 204 of annular, rotating seat 2 below mounting groove 204 is arranged with pair of screws hole, in each screw hole, is respectively equipped with screw 3;
The bottom symmetrical of rotating ring 1 offers a pair locating slot 103, a slide blocks 6 is respectively equipped with in each locating slot 103, this slide blocks 6 is made up of graphite material, this slide blocks 6 is snug fit on the step surface on the downside of second step hole 202, the inwall in first step hole 201 be provided with an annular protrusion limited ring 205, the downside of this limited ring 205 is arc shaped surface, slide in the upper side of limited ring 205 and the downside of ring-shaped step 101, spacing cooperation, step surface on the downside of limited ring 205 and first step hole 201, the inwall in step axial plane 104 and first step hole 201 forms the cavity of an annular, rotating ring O shape circle 4 to be located in this cavity and to be sealed between rotating ring 1 and rotating seat 2, rotating ring 1 is rotatably assorted on rotating seat 2, arc shaped surface on the downside of limited ring 205 and rotating ring O shape enclose coordinate and to rotating ring O shape enclose 4 carry out spacing, in installation process, when rotating ring 1 moves axially relative to rotating seat 2, rotating ring O shape circle is suitable for coordinating with groove 102 and stops the driven ring seat 2 of rotating ring 1 to depart from.
Rotating seat O shape circle 5, this rotating seat O shape snares be provided with in described mounting groove 204 for sealing are located on the axle that penetrates in rotating seat 2, and screw 3 is for being fixedly connected with the axle be arranged in rotating seat 2 with rotating seat 2.
Obviously, above-described embodiment is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all mode of executions.And these belong to spirit institute's apparent change of extending out of the present invention or change and are still among protection scope of the present invention.

Claims (5)

1. a shaft seal, it is characterized in that comprising: the rotating ring (1) be mutually rotatably assorted and rotating seat (2), the inwall in the first step hole (201) on rotating seat (2) is provided with protruding limited ring (205), form the cavity of an annular between the outer wall of the inwall in first step hole (201), limited ring (205) and rotating ring (1), be limited in this cavity for rotating ring O shape circle (4) sealed; The outer wall of rotating ring (1) is provided with an annular groove (102), and annular groove (102) is suitable for enclosing (4) with rotating ring O shape and locates, is sealed and matched.
2. shaft seal according to claim 1, it is characterized in that: rotating ring (1) outer middle side part is provided with ring-shaped step (101) and the step axial plane (104) of an inside indentation, ring-shaped step (101) coordinates with limited ring (205) is spacing, described toroidal cavity is formed by the outer wall of the inwall of first step hole (201), limited ring (205) and step axial plane (104), and annular groove (102) is located on the outer wall of this step axial plane (104).
3. shaft seal according to claim 2, it is characterized in that: the bottom of rotating ring (1) is provided with multiple locating slot (103), the slide blocks (6) that one contains graphite is respectively equipped with in each locating slot (103), rotating seat (2) is upper and the below being positioned at first step hole (201) is provided with second step hole (202), and slide blocks (6) is slidably matched with the step surface of downside, second step hole (202).
4. according to the shaft seal one of claim 1-3 Suo Shu, it is characterized in that: rotating seat (2) is upper and the downside being positioned at second step hole (202) is provided with the 3rd step hole (203), the mounting groove (204) of annular is located on the inwall of the 3rd step hole (203), rotating seat O shape circle (5) is located in this mounting groove (204), and rotating seat O shape circle (5) is for moving sealing ring seat (2) and the axle be arranged in rotating seat (2).
5. according to the shaft seal one of claim 1-3 Suo Shu, it is characterized in that: on the sidewall of the 3rd step hole (203) and the below being positioned at mounting groove (204) is provided with multiple screw hole, be respectively equipped with one in each screw hole for the screw (3) of stationary axle.
CN201410704407.2A 2014-11-26 2014-11-26 Shaft seal Active CN104405882B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410704407.2A CN104405882B (en) 2014-11-26 2014-11-26 Shaft seal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410704407.2A CN104405882B (en) 2014-11-26 2014-11-26 Shaft seal

Publications (2)

Publication Number Publication Date
CN104405882A true CN104405882A (en) 2015-03-11
CN104405882B CN104405882B (en) 2017-01-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410704407.2A Active CN104405882B (en) 2014-11-26 2014-11-26 Shaft seal

Country Status (1)

Country Link
CN (1) CN104405882B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105065470A (en) * 2015-07-23 2015-11-18 成都广迈科技有限公司 Electrical two-way limiting bearing

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10281299A (en) * 1997-04-11 1998-10-23 Mitsubishi Heavy Ind Ltd Mechanical seal device
CN2809286Y (en) * 2005-07-06 2006-08-23 管海涛 Water pump head sealing device
CN201013650Y (en) * 2007-03-27 2008-01-30 胡滨 Mechanical sealing member for hot oil pump axis
CN201173295Y (en) * 2007-11-15 2008-12-31 四川新川航空仪器有限责任公司 Contact type mechanical end-face leakage-free magnetic sealing member
CN202125611U (en) * 2011-05-24 2012-01-25 昆明五威科工贸有限公司 Large-depth underwater inner shaft and outer shaft mechanical seal device
CN202168429U (en) * 2011-07-20 2012-03-21 彭德权 Sealing structure applied to frozen sticking-type peeling machine
CN102996812A (en) * 2012-11-21 2013-03-27 哈尔滨东安发动机(集团)有限公司 Magnetic sealing device
CN203272803U (en) * 2013-04-18 2013-11-06 鲜伟 Bearing sealing and isolating device
CN203442140U (en) * 2013-09-06 2014-02-19 宁波得利时泵业有限公司 Mechanical sealing device for pump
CN103968077A (en) * 2014-05-19 2014-08-06 南京林业大学 Split type mechanical seal
CN203770644U (en) * 2014-01-06 2014-08-13 东莞市华汇精密机械有限公司 Preinstalled secondary mechanical sealing device with jetting prevention function
CN204267729U (en) * 2014-11-26 2015-04-15 胡炜平 A kind of shaft seal

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10281299A (en) * 1997-04-11 1998-10-23 Mitsubishi Heavy Ind Ltd Mechanical seal device
CN2809286Y (en) * 2005-07-06 2006-08-23 管海涛 Water pump head sealing device
CN201013650Y (en) * 2007-03-27 2008-01-30 胡滨 Mechanical sealing member for hot oil pump axis
CN201173295Y (en) * 2007-11-15 2008-12-31 四川新川航空仪器有限责任公司 Contact type mechanical end-face leakage-free magnetic sealing member
CN202125611U (en) * 2011-05-24 2012-01-25 昆明五威科工贸有限公司 Large-depth underwater inner shaft and outer shaft mechanical seal device
CN202168429U (en) * 2011-07-20 2012-03-21 彭德权 Sealing structure applied to frozen sticking-type peeling machine
CN102996812A (en) * 2012-11-21 2013-03-27 哈尔滨东安发动机(集团)有限公司 Magnetic sealing device
CN203272803U (en) * 2013-04-18 2013-11-06 鲜伟 Bearing sealing and isolating device
CN203442140U (en) * 2013-09-06 2014-02-19 宁波得利时泵业有限公司 Mechanical sealing device for pump
CN203770644U (en) * 2014-01-06 2014-08-13 东莞市华汇精密机械有限公司 Preinstalled secondary mechanical sealing device with jetting prevention function
CN103968077A (en) * 2014-05-19 2014-08-06 南京林业大学 Split type mechanical seal
CN204267729U (en) * 2014-11-26 2015-04-15 胡炜平 A kind of shaft seal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105065470A (en) * 2015-07-23 2015-11-18 成都广迈科技有限公司 Electrical two-way limiting bearing
CN105065470B (en) * 2015-07-23 2018-07-10 衢州熊妮妮计算机科技有限公司 A kind of two-way bearing of electric limiting

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SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
C14 Grant of patent or utility model
TR01 Transfer of patent right

Effective date of registration: 20180327

Address after: 212300 Zhenjiang City, Jiangsu city of Danyang Province Wang Yunyang town revitalization Road No. 89

Patentee after: Jiangsu champion industrial seal Co., Ltd.

Address before: 212300 Zhenjiang City, Jiangsu city of Danyang Province Wang town post office opposite energy-saving Co. Ltd.

Patentee before: Hu Weiping

TR01 Transfer of patent right