CN104265904A - Main shaft seal structure - Google Patents

Main shaft seal structure Download PDF

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Publication number
CN104265904A
CN104265904A CN201410535814.5A CN201410535814A CN104265904A CN 104265904 A CN104265904 A CN 104265904A CN 201410535814 A CN201410535814 A CN 201410535814A CN 104265904 A CN104265904 A CN 104265904A
Authority
CN
China
Prior art keywords
ring
main shaft
piston packing
seal
spring
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
CN201410535814.5A
Other languages
Chinese (zh)
Other versions
CN104265904B (en
Inventor
谢志玉
李嘉平
蓝惠玲
陈先进
丘冬芳
王小娟
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.)
Guangdong Meiyan Jixiang Hydropower Co Ltd
Original Assignee
Guangdong Meiyan Jixiang Hydropower 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 Guangdong Meiyan Jixiang Hydropower Co Ltd filed Critical Guangdong Meiyan Jixiang Hydropower Co Ltd
Priority to CN201410535814.5A priority Critical patent/CN104265904B/en
Publication of CN104265904A publication Critical patent/CN104265904A/en
Application granted granted Critical
Publication of CN104265904B publication Critical patent/CN104265904B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/18—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
    • F16J15/24—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings with radially or tangentially compressed packing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Sealing Devices (AREA)

Abstract

The invention discloses a main shaft seal structure. The main shaft seal structure comprises a main shaft abrasion resisting ring(1) and a corresponding seal ring which are arranged on the inner side of a main shaft flange (a), and a seal seat ring (2) which is arranged on a shaft neck of a main shaft (b), wherein the seal ring comprises a piston seal ring outer ring (11) and a piston seal ring inner ring (12) arranged on the inner side of the piston seal ring outer ring (11), a round cavity around the piston seal ring inner ring (12) is arranged between the piston seal ring outer ring (11) and the piston seal ring inner ring (12), a piston seal ring (13) matched with a piston is arranged in the cavity, springs (14) are evenly distributed on the circumference of one end of the piston seal ring (13), and the other end of the piston seal ring extends out of the cavity and is pressed against the main shaft abrasion resisting ring(1) through the springs (14). The main shaft seal structure uses a combination method of radial sealing and axial sealing, and thereby can effectively prevent the phenomenon that pressure water leaks into a bulb body through an interval between a rotating portion and a stationary portion and damages a bearing.

Description

A kind of main shaft sealing construction
Technical field
The present invention relates to field of machining and machinebuilding technology, be specifically related to a kind of main shaft sealing construction.
Background technique
The main shaft of water turbine is sealed by rubber, because namely rubber ring properties of materials there will be the hardening problem of oxidation after using one end event, thus causing it to lose due seal action, this kind of structure also cannot effectively prevent from press water from passing through the gap of rotating between stationary part leaking to bulb internal damage bearing simultaneously.
Summary of the invention
The object of the invention is to provide a kind of main shaft sealing construction, and it can solve problem existing in background technique effectively.
In order to solve in background technique existing problem, it comprises the seal holder ring 2 being arranged on a circle main shaft wearing ring 1 inside spindle flange a and corresponding seal ring and being arranged on main shaft b axle journal place; Described seal ring comprises the piston packing ring inner ring 12 of piston packing ring outer ring 11 and the side that sets within it, a circle cavity is provided with between described piston packing ring outer ring 11 and piston packing ring inner ring 12, the piston packing ring 13 that piston with it coordinates is provided with in this cavity, one end of described piston packing ring 13 is evenly distributed in spring 14, and its other end extends cavity and is against on wearing ring 1 by spring 14; Described seal holder ring 2 is arranged on the inner ring place of piston packing ring inner ring 12, its inwall respectively radial direction offers several seal groove 21, the seal ring 22 of closely grafting cooperation is with it provided with in each seal groove 21, the side that described seal ring 22 is positioned at seal groove 21 is provided with Packing spring 23, and its opposite side is against the axle journal place of main shaft b by described Packing spring 23.
The end of described piston packing ring inner ring 12 is evenly distributed in several screw, guide rod 15 is provided with in this screw, the outside thread coordinated that to spin with screw is provided with near the root in described guide rod 15 bar portion, all the other large portions are column construction, wherein column construction partially pass through spring 14 and piston packing ring 13 closely grafting coordinate.
Described piston packing ring 13 offers the spring groove matched with spring 14.
Owing to have employed above technological scheme, the present invention has following beneficial effect: the way combined by radial seal and axial seal can effectively prevent from press water from passing through the gap of rotating between stationary part leaking phenomenon to bulb internal damage bearing.
Accompanying drawing explanation
In order to be illustrated more clearly in the present invention, below in conjunction with accompanying drawing, embodiment is briefly described.
Fig. 1 is structural representation of the present invention;
Fig. 2 is the partial structurtes schematic diagram of Fig. 1;
Fig. 3 is the partial structurtes schematic diagram of Fig. 2.
Embodiment
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technological scheme in the embodiment of the present invention being clearly and completely described.
Referring to Fig. 1-3, this embodiment is achieved by the following technical solutions, and it comprises the seal holder ring 2 being arranged on a circle main shaft wearing ring 1 inside spindle flange a and corresponding seal ring and being arranged on main shaft b axle journal place; Described seal ring comprises the piston packing ring inner ring 12 of piston packing ring outer ring 11 and the side that sets within it, a circle cavity is provided with between described piston packing ring outer ring 11 and piston packing ring inner ring 12, the piston packing ring 13 that piston with it coordinates is provided with in this cavity, one end of described piston packing ring 13 is evenly distributed in spring 14, and its other end extends cavity and is against on wearing ring 1 by spring 14; Described seal holder ring 2 is arranged on the inner ring place of piston packing ring inner ring 12, its inwall respectively radial direction offers several seal groove 21, the seal ring 22 of closely grafting cooperation is with it provided with in each seal groove 21, the side that described seal ring 22 is positioned at seal groove 21 is provided with Packing spring 23, and its opposite side is against the axle journal place of main shaft b by described Packing spring 24.
The end of described piston packing ring inner ring 12 is evenly distributed in several screw, guide rod 15 is provided with in this screw, the outside thread coordinated that to spin with screw is provided with near the root in described guide rod 15 bar portion, all the other large portions are column construction, wherein column construction partially pass through spring 14 and piston packing ring 13 closely grafting coordinate.
Described piston packing ring 13 offers the spring groove matched with spring 14.
Below in conjunction with accompanying drawing, the working principle of technological scheme in this concrete enforcement is further elaborated:
Make it be fitted in closely on spindle flange a all the time under the driving of the spring 14 that the piston packing ring 13 that main shaft b and spindle flange a is arranged on spindle flange a place in the process of rotating is arranged at circumference uniform distribution, thus realize the object of axial seal; Be arranged in the seal groove 21 on seal holder ring 2 inner headed face and be provided with seal ring 22, sealing ring 22 fits tightly with the periphery at the axle journal place of main shaft b under the driving of Packing spring 23, thus realize the object of radial seal, thus effectively prevent from press water from passing through the gap of rotating between stationary part leaking phenomenon to bulb internal damage bearing.
Last it is noted that above embodiment is only in order to illustrate technological scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art should be appreciated that it still can be modified to the technological scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technological scheme.

Claims (3)

1. a main shaft sealing construction, is characterized in that it comprises the seal holder ring (2) being arranged on circle main shaft wearing ring (1) inside spindle flange a and corresponding seal ring and being arranged on main shaft b axle journal place; Described seal ring comprises the piston packing ring inner ring (12) of piston packing ring outer ring (11) and the side that sets within it, a circle cavity is provided with between described piston packing ring outer ring (11) and piston packing ring inner ring (12), the piston packing ring (13) that piston with it coordinates is provided with in this cavity, one end of described piston packing ring (13) is evenly distributed in spring (14), and its other end extends cavity and is against on wearing ring (1) by spring (14); Described seal holder ring (2) is arranged on the inner ring place of piston packing ring inner ring (12), its inwall respectively radial direction offers several seal groove (21), the seal ring (22) of closely grafting cooperation is with it provided with in each seal groove (21), the side that described seal ring (22) is positioned at seal groove (21) is provided with Packing spring (23), and its opposite side is against the axle journal place of main shaft b by described Packing spring (23).
2. a kind of main shaft sealing construction according to claim 1, it is characterized in that the end of described piston packing ring inner ring (12) is evenly distributed in several screw, guide rod (15) is provided with in this screw, the outside thread coordinated that to spin with screw is provided with near the root in described guide rod (15) bar portion, all the other large portions are column construction, wherein column construction partially pass through spring (14) and piston packing ring (13) closely grafting coordinate.
3. a kind of main shaft sealing construction according to claim 1, is characterized in that described piston packing ring (13) offering the spring groove matched with spring (14).
CN201410535814.5A 2014-10-13 2014-10-13 A kind of main shaft sealing construction Expired - Fee Related CN104265904B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410535814.5A CN104265904B (en) 2014-10-13 2014-10-13 A kind of main shaft sealing construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410535814.5A CN104265904B (en) 2014-10-13 2014-10-13 A kind of main shaft sealing construction

Publications (2)

Publication Number Publication Date
CN104265904A true CN104265904A (en) 2015-01-07
CN104265904B CN104265904B (en) 2017-07-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410535814.5A Expired - Fee Related CN104265904B (en) 2014-10-13 2014-10-13 A kind of main shaft sealing construction

Country Status (1)

Country Link
CN (1) CN104265904B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105971804A (en) * 2016-07-05 2016-09-28 国家电网公司 Supporting device for main shaft seal abrasion loss sensor
CN114459929A (en) * 2022-01-27 2022-05-10 山东省产品质量检验研究院 A tool for testing the mechanical properties of profiles

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2373638Y (en) * 1999-04-10 2000-04-12 符世朝 Floating shaft seal
JP2006071032A (en) * 2004-09-03 2006-03-16 Mitsubishi Heavy Ind Ltd Packing, axial seal mechanism and hydraulic power machine
CN201025223Y (en) * 2007-03-30 2008-02-20 天津市天发重型水电设备制造有限公司 Turbine main shaft sealing device
CN201258816Y (en) * 2008-08-15 2009-06-17 哈尔滨电机厂有限责任公司 Principal axis sealing device for end-face water pressure type hydroturbine
CN202691032U (en) * 2012-03-12 2013-01-23 浙江富春江水电设备股份有限公司 Sealing structure for water turbine spindle
CN103133695A (en) * 2011-11-29 2013-06-05 天津市天发重型水电设备制造有限公司 Novel main shaft sealing structure of hydraulic generator
CN103511633A (en) * 2012-06-25 2014-01-15 江苏航天水力设备有限公司 Main shaft sealing device
CN203453469U (en) * 2013-07-09 2014-02-26 重庆大唐国际武隆水电开发有限公司 A water turbine main shaft sealing structure
CN203533606U (en) * 2013-10-22 2014-04-09 北京慧峰仁和科技股份有限公司 Novel center cylinder sealing device of air preheater
CN104040228A (en) * 2012-06-25 2014-09-10 伊格尔工业股份有限公司 Sealing device
CN204153148U (en) * 2014-10-13 2015-02-11 广东梅雁吉祥水电股份有限公司 A kind of main shaft sealing construction

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2373638Y (en) * 1999-04-10 2000-04-12 符世朝 Floating shaft seal
JP2006071032A (en) * 2004-09-03 2006-03-16 Mitsubishi Heavy Ind Ltd Packing, axial seal mechanism and hydraulic power machine
CN201025223Y (en) * 2007-03-30 2008-02-20 天津市天发重型水电设备制造有限公司 Turbine main shaft sealing device
CN201258816Y (en) * 2008-08-15 2009-06-17 哈尔滨电机厂有限责任公司 Principal axis sealing device for end-face water pressure type hydroturbine
CN103133695A (en) * 2011-11-29 2013-06-05 天津市天发重型水电设备制造有限公司 Novel main shaft sealing structure of hydraulic generator
CN202691032U (en) * 2012-03-12 2013-01-23 浙江富春江水电设备股份有限公司 Sealing structure for water turbine spindle
CN103511633A (en) * 2012-06-25 2014-01-15 江苏航天水力设备有限公司 Main shaft sealing device
CN104040228A (en) * 2012-06-25 2014-09-10 伊格尔工业股份有限公司 Sealing device
CN203453469U (en) * 2013-07-09 2014-02-26 重庆大唐国际武隆水电开发有限公司 A water turbine main shaft sealing structure
CN203533606U (en) * 2013-10-22 2014-04-09 北京慧峰仁和科技股份有限公司 Novel center cylinder sealing device of air preheater
CN204153148U (en) * 2014-10-13 2015-02-11 广东梅雁吉祥水电股份有限公司 A kind of main shaft sealing construction

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105971804A (en) * 2016-07-05 2016-09-28 国家电网公司 Supporting device for main shaft seal abrasion loss sensor
CN105971804B (en) * 2016-07-05 2018-08-17 国家电网公司 A kind of main shaft seal wear extent sensor support device
CN114459929A (en) * 2022-01-27 2022-05-10 山东省产品质量检验研究院 A tool for testing the mechanical properties of profiles
CN114459929B (en) * 2022-01-27 2024-04-19 山东省产品质量检验研究院 Tool for detecting mechanical properties of sectional materials

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Granted publication date: 20170707

Termination date: 20181013