CN104675968A - Pumping unit speed reducer shaft head sealing structure - Google Patents

Pumping unit speed reducer shaft head sealing structure Download PDF

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Publication number
CN104675968A
CN104675968A CN201310607674.3A CN201310607674A CN104675968A CN 104675968 A CN104675968 A CN 104675968A CN 201310607674 A CN201310607674 A CN 201310607674A CN 104675968 A CN104675968 A CN 104675968A
Authority
CN
China
Prior art keywords
ring
cover
ball
speed reducer
bearing
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
CN201310607674.3A
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Chinese (zh)
Inventor
朱杏生
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CN201310607674.3A priority Critical patent/CN104675968A/en
Publication of CN104675968A publication Critical patent/CN104675968A/en
Pending legal-status Critical Current

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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
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/02Gearboxes; Mounting gearing therein
    • F16H57/029Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
    • 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
    • F16J15/18Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings

Abstract

The invention discloses a pumping unit speed reducer shaft head sealing structure which comprises a shaft head, a gland, a bearing end cover and a box body, wherein a rectangular rubber ring is directly arranged on both the gland and the bearing end cover; an asbestos pad is arranged between the bearing end cover and the box body; a sealing cover is further arranged at the part, where the asbestos pad is arranged, between the bearing end cover and the box body; a transmission sleeve is mounted on the shaft head through a fixed pin; a fixed ring is arranged in the bearing end cover; a moving ring is arranged on and connected with the transmission sleeve; a pin is mounted on the moving ring; a fixed ring O-shaped rubber ring and a moving ring O-shaped rubber ring are respectively arranged on the fixed ring and the moving ring; and a spring is mounted between the moving ring and the transmission sleeve. By adopting the technical scheme, reliable sealing performance of the pumping unit speed reducer shaft head sealing structure is realized and the service life is long.

Description

A kind of oil pump speed reducer spindle nose sealing structure
Technical field
The present invention relates to a kind of oil pump speed reducer spindle nose sealing structure, belong to pumping unit technical field.
Background technique
In oilfield exploitation, often there is oil seepage phenomena in various degree in oil pump speed reducer, the main portions of leakage of oil has spindle nose and the bearing (ball) cover of upper lower box junction plane, input shaft, output shaft, and sealing member material mainly contains felt and rectangular rubber, seal action is played by compressing gland, its shortcoming is poor sealing performance, and along with the prolongation of service time, soft packing is out of shape by compressing for a long time, lose original elasticity, wear and tear gradually, cannot auto-compensation, do not have permanent sealing effect.This is the main cause causing retarder spindle nose leakage of oil; Along with field produces development, propose new requirement to the sealing of retarder, soft packing seal weak effect, working life is short, and inconvenient field maintenance can not adapt to the requirement of modern petroleum industry; Therefore thoroughly solve the Leakage of retarder, must improve with on the spindle nose sealing structure of oil pump speed reducer.
Summary of the invention
For the technical problem of above-mentioned existence, the object of the invention is: propose a kind of sealability reliable, long service life oil pump speed reducer spindle nose sealing structure.
Technical solution of the present invention is achieved in that a kind of oil pump speed reducer spindle nose sealing structure, comprise spindle nose, gland, bearing (ball) cover, casing, described gland and bearing (ball) cover are directly provided with regular rubber ring, be provided with asbestos packing between described bearing (ball) cover and casing, be provided with asbestos packing place between described bearing (ball) cover and casing and be also provided with sealing cover; Described spindle nose is provided with drive sleeve by fixing pin; Described bearing (ball) cover inside is provided with stationary ring; Described drive sleeve is connected with rotating ring; Described rotating ring is provided with pin; Described stationary ring, rotating ring are respectively equipped with stationary ring O shape rubber ring, rotating ring O shape rubber ring; Between described rotating ring and drive sleeve, spring is housed.
Due to the utilization of technique scheme, the present invention compared with prior art has following advantages:
A kind of oil pump speed reducer spindle nose sealing structure of the present invention, by drive sleeve fixing pin is fixed on spindle nose, stationary ring and bearing (ball) cover endoporus are interference fit, be provided with asbestos packing place and be also provided with sealing cover between bearing (ball) cover and casing, and improving sealing further can, when the shaft is rotated, fixing pin drives drive sleeve to rotate together, and between rotating ring and drive sleeve, spring is housed, rotating ring under the action of the spring, on the one hand by the interlock effect of the pin on it and drive sleeve, rotate with axle; On the other hand, can move vertically under the guiding of drive sleeve pin chute, the rotating ring of rotation and the seal face of stationary ring is made to be in fit-state all the time, there is the oil film that one deck is very thin therebetween, to reach the object of rotary seal, make the sealability of oil pump speed reducer spindle nose sealing structure reliable like this, long service life.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solution of the present invention is described further:
Accompanying drawing 1 is the structural representation of a kind of oil pump speed reducer spindle nose sealing structure of the present invention;
Wherein: 1, spindle nose; 2, gland; 3, bearing (ball) cover; 4, casing; 5, regular rubber ring; 6, asbestos packing; 7, fixing pin; 8, drive sleeve; 9, stationary ring; 10, rotating ring; 11, pin; 12, stationary ring O shape rubber ring; 13, rotating ring O shape rubber ring; 14, spring; 15, sealing cover.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described.
Accompanying drawing 1 is a kind of oil pump speed reducer spindle nose sealing structure of the present invention, comprise spindle nose 1, gland 2, bearing (ball) cover 3, casing 4, described gland 2 is directly provided with regular rubber ring 5 with bearing (ball) cover 3, be provided with asbestos packing 6 between described bearing (ball) cover 3 and casing 4, be provided with asbestos packing 6 place between described bearing (ball) cover 3 and casing 4 and be also provided with sealing cover 15; Described spindle nose 1 is provided with drive sleeve 8 by fixing pin 7; Described bearing (ball) cover 3 inside is provided with stationary ring 9; Described drive sleeve 8 is connected with rotating ring 10; Described rotating ring 10 is provided with pin 11; Described stationary ring 9, rotating ring 10 are respectively equipped with stationary ring O shape rubber ring 12, rotating ring O shape rubber ring 13; Between described rotating ring 10 and drive sleeve 8, spring 14 is housed.
The present invention program is by being fixed on spindle nose 1 by drive sleeve 8 fixing pin 7, stationary ring 9 and bearing (ball) cover 3 endoporus are interference fit, be provided with asbestos packing 6 place between bearing (ball) cover 3 and casing 4 and be also provided with sealing cover 15, improve sealing energy further, when the shaft is rotated, fixing pin 7 drives drive sleeve 8 to rotate together, spring 14 is housed between rotating ring 10 and drive sleeve 8, rotating ring 10 under action from the spring 14, on the one hand by the pin 11 on it and the interlock effect of drive sleeve 8, rotates with axle; On the other hand, can move vertically under the guiding of drive sleeve 8 pin chute, the rotating ring 10 of rotation is made to be in fit-state all the time with the seal face of stationary ring 9, there is the oil film that one deck is very thin therebetween, to reach the object of rotary seal, make the sealability of oil pump speed reducer spindle nose sealing structure reliable like this, long service life.
Above-described embodiment is only for illustrating technical conceive of the present invention and feature; its object is to person skilled in the art can be understood content of the present invention and be implemented; can not limit the scope of the invention with this; all equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed in protection scope of the present invention.

Claims (1)

1. an oil pump speed reducer spindle nose sealing structure, comprise spindle nose, gland, bearing (ball) cover, casing, described gland and bearing (ball) cover are directly provided with regular rubber ring, be provided with asbestos packing between described bearing (ball) cover and casing, it is characterized in that: be provided with asbestos packing place between described bearing (ball) cover and casing and be also provided with sealing cover; Described spindle nose is provided with drive sleeve by fixing pin; Described bearing (ball) cover inside is provided with stationary ring; Described drive sleeve is connected with rotating ring; Described rotating ring is provided with pin; Described stationary ring, rotating ring are respectively equipped with stationary ring O shape rubber ring, rotating ring O shape rubber ring; Between described rotating ring and drive sleeve, spring is housed.
CN201310607674.3A 2013-11-26 2013-11-26 Pumping unit speed reducer shaft head sealing structure Pending CN104675968A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310607674.3A CN104675968A (en) 2013-11-26 2013-11-26 Pumping unit speed reducer shaft head sealing structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310607674.3A CN104675968A (en) 2013-11-26 2013-11-26 Pumping unit speed reducer shaft head sealing structure

Publications (1)

Publication Number Publication Date
CN104675968A true CN104675968A (en) 2015-06-03

Family

ID=53311400

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310607674.3A Pending CN104675968A (en) 2013-11-26 2013-11-26 Pumping unit speed reducer shaft head sealing structure

Country Status (1)

Country Link
CN (1) CN104675968A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105240504A (en) * 2015-11-02 2016-01-13 苏州市淞舜五金有限公司 Sealing bearing
CN105257813A (en) * 2015-11-02 2016-01-20 苏州市淞舜五金有限公司 Sealing wear-resisting bearing
CN105782414A (en) * 2016-04-10 2016-07-20 苏州恒扬精密机械有限公司 Comprehensive self-cooled shaft seal system
CN108443510A (en) * 2018-05-16 2018-08-24 徐拥军 Rotary shaft sealing

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU493580A1 (en) * 1973-09-21 1975-11-28 Предприятие П/Я Р-6131 Sealing unit
JPH10112952A (en) * 1996-10-04 1998-04-28 Tsubakimoto Chain Co Shaft sealing structure of gear motor
CN201177043Y (en) * 2008-04-06 2009-01-07 秦国元 Elevated plain oil pumping machine reduction box input shaft sealer
CN102278474A (en) * 2011-06-12 2011-12-14 鞍山重型矿山机器股份有限公司 Contact type dynamic sealing method and dynamic sealing device of dishing sealing ring
CN102734470A (en) * 2012-06-27 2012-10-17 沃德(天津)传动有限公司 Speed reducer and sealing device thereof
CN103322200A (en) * 2013-07-09 2013-09-25 朱兴生 Spindle head sealing structure of speed reducer of pumping unit
CN203477273U (en) * 2013-07-09 2014-03-12 朱兴生 Seal structure for pumping unit reducer shaft head

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU493580A1 (en) * 1973-09-21 1975-11-28 Предприятие П/Я Р-6131 Sealing unit
JPH10112952A (en) * 1996-10-04 1998-04-28 Tsubakimoto Chain Co Shaft sealing structure of gear motor
CN201177043Y (en) * 2008-04-06 2009-01-07 秦国元 Elevated plain oil pumping machine reduction box input shaft sealer
CN102278474A (en) * 2011-06-12 2011-12-14 鞍山重型矿山机器股份有限公司 Contact type dynamic sealing method and dynamic sealing device of dishing sealing ring
CN102734470A (en) * 2012-06-27 2012-10-17 沃德(天津)传动有限公司 Speed reducer and sealing device thereof
CN103322200A (en) * 2013-07-09 2013-09-25 朱兴生 Spindle head sealing structure of speed reducer of pumping unit
CN203477273U (en) * 2013-07-09 2014-03-12 朱兴生 Seal structure for pumping unit reducer shaft head

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105240504A (en) * 2015-11-02 2016-01-13 苏州市淞舜五金有限公司 Sealing bearing
CN105257813A (en) * 2015-11-02 2016-01-20 苏州市淞舜五金有限公司 Sealing wear-resisting bearing
CN105782414A (en) * 2016-04-10 2016-07-20 苏州恒扬精密机械有限公司 Comprehensive self-cooled shaft seal system
CN105782414B (en) * 2016-04-10 2018-05-08 苏州恒扬精密机械有限公司 A kind of comprehensive self-cooled gland seal system
CN108443510A (en) * 2018-05-16 2018-08-24 徐拥军 Rotary shaft sealing

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Application publication date: 20150603