CN108869383A - O-shaped high pressure pump gland - Google Patents

O-shaped high pressure pump gland Download PDF

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Publication number
CN108869383A
CN108869383A CN201810812274.9A CN201810812274A CN108869383A CN 108869383 A CN108869383 A CN 108869383A CN 201810812274 A CN201810812274 A CN 201810812274A CN 108869383 A CN108869383 A CN 108869383A
Authority
CN
China
Prior art keywords
axis body
interior
sealing ring
notch
flow
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
CN201810812274.9A
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Chinese (zh)
Inventor
陈建
吴耀
陈会云
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.)
Lishui Yimu Creative Design Co Ltd
Original Assignee
Lishui Yimu Creative Design 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 Lishui Yimu Creative Design Co Ltd filed Critical Lishui Yimu Creative Design Co Ltd
Priority to CN201810812274.9A priority Critical patent/CN108869383A/en
Publication of CN108869383A publication Critical patent/CN108869383A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/08Sealings
    • F04D29/10Shaft sealings
    • F04D29/12Shaft sealings using sealing-rings
    • F04D29/126Shaft sealings using sealing-rings especially adapted for liquid pumps

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Sealing Devices (AREA)

Abstract

The present invention relates to high-pressure hydraulic pump field, a kind of O-shaped high pressure pump gland, including being socketed interior axis body on the rotary shaft, and the outer axis body being connected with shell;Outer axis body is in the outside of interior axis body, and inner shaft body can rotate in a circumferential direction relative to outer axis body;Flow of media gap is equipped between the outer axis body and interior axis body, two sides are ladder-like in multistage in the axial direction by axial middle part in flow of media gap, and every grade of ladder Duan Shangjun is at least provided with a seal groove;Sealing ring is equipped in the seal groove, when the interior axis body and outer axis body are opposing stationary, the sealing ring is completely in the first notch;When the interior axis body and outer axis body relative motion, the tongue of sealing ring is moved out with respect to sliding slot makes seal diameter become larger, and sealing ring is in the second notch and blocks the flow of media gap.The sealing effect of the ring structure can be more preferable, and the coefficient of friction in device can be lower, keeps the sealing ring service life longer.

Description

O-shaped high pressure pump gland
Technical field
The present invention relates to high-pressure hydraulic pump field more particularly to O-shaped high pressure pump glands.
Background technique
The most structure of mechanical seal that traditional water pump locking uses is single, such as uses traditional seal.And conventional seals Circle is the effect that sealing is kept by the tensioning of sealing ring, and the effect of the bigger sealing of tensile force is also better;But it can only guarantee one Fixed leakproofness is only applicable on general water pump.The mechanically-sealing apparatus of above-mentioned ordinary water pump is applied into high pressure, high speed Under environment using then will lead to sealing ring and rotary shaft rub it is very serious, calorific value is bigger seriously affect sealing ring use the longevity Life, and its leakproofness is influenced, it is unfavorable for working long hours for water pump.Meanwhile using the side of above-mentioned traditional seal tight seal Formula, can be due to being tensioned energy consumption that is excessive and increasing equipment, and urgent need improves.
Summary of the invention
To solve the above-mentioned problems, the purpose of the present invention is to provide O-shaped high pressure pump gland, the sealing of the sealing ring is imitated Fruit can be more preferable, and the coefficient of friction in device can be lower, keeps the sealing ring service life longer, greatly reduced personnel to the dimension of equipment Shield and maintenance period.
In order to achieve the above purpose, present invention employs technical solutions below:
O-shaped high pressure pump gland, including being socketed interior axis body on the rotary shaft, and the outer axis body being connected with shell;Outer shaft Body is in the outside of interior axis body, and inner shaft body can rotate in a circumferential direction relative to outer axis body;It is set between the outer axis body and interior axis body There is flow of media gap, two sides are in multistage ladder-like, the inner shaft of outer side steps section in the axial direction by axial middle part in flow of media gap Body diameter is greater than the interior axis body diameter of interior side steps section;Every grade of ladder Duan Shangjun is at least provided with a seal groove;The seal groove Including in the first notch being provided in the external side wall surface of inner shaft, and the second slot being provided in outer shaft body in side wall surface Oral area;First notch and the second notch are respectively inside and outside flow of media gap, and the first notch depth is greater than The sum of second notch depth and flow of media gap width;Sealing ring is equipped in the seal groove, sealing ring is the sealing of O shape Circle, the radial thickness of sealing ring is less than or equal to the first notch depth, and is greater than between the second notch depth and flow of media The sum of gap width;The sealing ring is to enclose the ring body constituted by linear sealing body, offers cunning in the first end of sealing ring Slot, the second end of sealing ring are equipped with tongue, and tongue insertion sliding slot is interior and adjusts along the chute;When the interior axis body and outer axis body When opposing stationary, the sealing ring is completely in the first notch;When the interior axis body and outer axis body relative motion, sealing The tongue of circle is moved out with respect to sliding slot makes seal diameter become larger, and sealing ring is in the second notch and blocks the medium Passage gaps.
Preferably, the flow of media gap respectively includes the first ladder section, second in two sides in the axial direction by axial middle part The interior axis body diameter of ladder section and third ladder section, the first ladder section, second-order bench and third ladder section becomes larger;It is described First ladder Duan Shangshe is set there are two seal groove in second-order bench there are two seal groove, third ladder section be equipped with one it is close Sealing groove.
Preferably, the interior axis body includes the first axle body portion and the second axle body portion, the first axle body portion and the second axle body portion Interior shaft end be connected and fixed;The connection boundary in the first axle body portion and the second axle body portion is in the first ladder section, and is in two Between seal groove.By adopting the above technical scheme, interior axis body is divided into the first axle body portion and the second axle body portion to be formed by connecting, be in order to Above-mentioned flow of media gap is realized in stepped arrangement, so that the first axle body portion, the second axle body portion and outer shaft body can be quick Assembly.And the purpose that flow of media gap is arranged is, when interior axis body and outer axis body are opposing stationary, sealing ring is completely in the In one notch, flow of media gap is not blocked, and the flow of media gap in rotary shaft upper section can be by middle part Eminence internal water squeezing is discharged to the lower of two sides, to avoid rotary shaft upper section flow of media gap, there are media accumulations It flows at rotary shaft.
Preferably, the first axle body portion is connected through a screw thread with the second axle body portion.
Preferably, the first notch bottom and interior side steps in two adjacent ladder sections, in outer side steps section The flow of media gap inner sidewall of section is flush.
By adopting the above technical scheme, which is related to O-shaped high pressure pump gland to the present invention, in the high pressure pump gland Interior axis body and outer axis body between be equipped with flow of media gap, flow of media gap be in the ladder-like and every grade of ladder Duan Shangjun of multistage At least provided with a seal groove;Further, sealing ring is equipped in seal groove, and the sealing ring is elastic seal ring, and can Change its ring body diameter.Therefore, only when interior axis body and outer axis body relatively rotate, the tongue of sealing ring is moved out with respect to sliding slot Seal diameter is set to become larger, sealing ring is in the second notch and blocks the flow of media gap.And the motion state Under sealing be by equipment rotation generate centrifugal force the diameter of sealing ring is become larger, with traditional seal use tensioning it is close Envelope mode is different, and which is that sealing ring with outer wall carries out line and contact to reduce to rub, and use process is non-for the abrasion of sealing ring It is often low;And in order to guarantee sealing effect, the program is using multiple groups sealing means.Therefore comparatively, the sealing of the method The sealing effect of circle can be more preferable, and the coefficient of friction in device can be lower, keeps the sealing ring service life longer, greatly reduced personnel To the care and maintenance period of equipment.
Detailed description of the invention
Fig. 1 is that sealing ring remains static figure in the present invention.
Fig. 2 is that sealing ring is kept in motion figure in the present invention.
Fig. 3 is the portion the A enlarged drawing of Fig. 2.
Fig. 4 is the structural schematic diagram of sealing ring.
Fig. 5 is the sagittal plane schematic diagram in Fig. 4 at B.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right", "top", The orientation or positional relationship of the instructions such as "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, merely to just In description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with Specific orientation construction and operation, therefore be not considered as limiting the invention.
The O-shaped high pressure pump gland as shown in Fig. 1 ~ 5, including being socketed interior axis body 1 on the rotary shaft, and with outer shell phase The outer axis body 2 of connection.Outer axis body 2 is in the outside of interior axis body 1, and interior axis body 1 can rotate in a circumferential direction relative to outer axis body 2.Institute It states and is equipped with flow of media gap 3 between outer axis body 2 and interior axis body 1, two sides are in more in the axial direction by axial middle part in flow of media gap 3 Grade is ladder-like, and 1 diameter of interior axis body of outer side steps section is greater than 1 diameter of interior axis body of interior side steps section;And every grade of ladder Duan Shangjun At least provided with a seal groove 4.In a kind of wherein embodiment, the flow of media gap 3 is by axial middle part in the axial direction two Side respectively includes the first ladder section 31, second-order bench 32 and third ladder section 33, the first ladder section 31,32 and of second-order bench 1 diameter of interior axis body of third ladder section 33 becomes larger.Seal groove 4 there are two being set in the first ladder section 31, the second ladder It is set in section 32 there are two seal groove 4, third ladder section 33 is equipped with a seal groove 4.
In a kind of wherein embodiment, the interior axis body 1 includes the first axle body portion 11 and the second axle body portion 12, the first axle body The interior shaft end in portion 11 and the second axle body portion 12 is connected and fixed;It specifically can be using higher sides of other bonding strengths such as threaded connections Formula.The connection boundary in the first axle body portion 11 and the second axle body portion 12 is in the first ladder section 31, and in two seal grooves 4 it Between.By adopting the above technical scheme, interior axis body 1 is divided and is formed by connecting for the first axle body portion 11 and the second axle body portion 12, be for reality Existing above-mentioned flow of media gap 3 is in stepped arrangement, so that the first axle body portion 11, the second axle body portion 12 and outer axis body 2 can Quick assembling.And the purpose that flow of media gap 3 is arranged is, when interior axis body 1 is opposing stationary with outer axis body 2, sealing ring is complete Entirely in the first notch, flow of media gap 3 is not blocked, and is in the flow of media gap 3 of rotary shaft upper section Internal water squeezing can be discharged from the eminence at middle part to the lower of two sides, to avoid rotary shaft upper section flow of media gap 3 There are media accumulations to flow at rotary shaft.
The seal groove 4 includes being in the first notch 41 being provided on interior 1 outer side surface of axis body, and be provided with outer The second notch 42 in 2 interior sidewall surface of axis body.First notch 41 and the second notch 42 are respectively at flow of media gap 3 Inside and outside, the first notch depth a is greater than the sum of the second notch depth b and flow of media gap width c.And adjacent Two ladder sections in, 3 inside of flow of media gap of 41 bottom of the first notch in outer side steps section and interior side steps section Wall is flush;In 41 bottom of the first notch in third ladder section 33 and the flow of media gap 3 in second-order bench 32 Side wall is flush.Sealing ring 5 is equipped in the seal groove 4, sealing ring 5 is O-ring seals, and the radial thickness d of sealing ring 5 is less than Or it is equal to the first notch depth a, and be greater than the sum of the second notch depth b and flow of media gap width c.The sealing ring 5 be to enclose the ring body constituted by linear sealing body, offers sliding slot 51, the second end of sealing ring 5 in the first end of sealing ring 5 Portion is equipped with tongue 52, and tongue 52 is inserted into sliding slot 51 and 51 adjusts along the chute.When the interior axis body 1 and outer axis body 2 are relatively quiet When only, the sealing ring 5 is completely in the first notch 41.When the interior axis body 1 is with outer 2 relative motion of axis body, sealing The tongue 52 of circle 5 is moved out with respect to sliding slot 51 makes 5 diameter of sealing ring become larger, and sealing ring 5 is in the second notch 42 and seals Block up the flow of media gap 3.
The technical solution is related to O-shaped high pressure pump gland, between the interior axis body 1 and outer axis body 2 in the high pressure pump gland Equipped with flow of media gap 3, flow of media gap 3 is in the ladder-like and every grade of ladder Duan Shangjun of multistage at least provided with a seal groove 4.Further, sealing ring 5 is equipped in seal groove 4, and the sealing ring 5 is elastic seal ring 5, and it is straight to change its ring body Diameter.Therefore, only when interior axis body 1 and outer axis body 2 relatively rotate, the tongue 52 of sealing ring 5 moved out with respect to sliding slot 51 make it is close 5 diameter of seal becomes larger, and sealing ring 5 is in the second notch 42 and blocks the flow of media gap 3.And the motion state Under sealing be by equipment rotation generate centrifugal force the diameter of sealing ring 5 is become larger, with traditional seal 5 use tensioning Sealing means are different, and which is that sealing ring 5 with outer wall carries out line and contact to reduce to rub, mill of the use process for sealing ring 5 It damages very low.And in order to guarantee sealing effect, the program is using multiple groups sealing means.Therefore comparatively, the method The sealing effect of sealing ring can be more preferable, and the coefficient of friction in device can be lower, makes 5 service life of sealing ring can be longer, greatly reduces Care and maintenance periods of the personnel to equipment.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.

Claims (5)

1.O type high pressure pump gland, it is characterised in that:Including being socketed interior axis body on the rotary shaft(1), and be connected with shell The outer axis body connect(2);Outer axis body(2)In interior axis body(1)Outside, and interior axis body(1)It can be relative to outer axis body(2)It is circumferential Rotation;The outer axis body(2)With interior axis body(1)Between be equipped with flow of media gap(3), flow of media gap(3)By in axial direction Two sides are in multistage ladder-like, the interior axis body of outer side steps section in the axial direction in portion(1)Diameter is greater than the interior axis body of interior side steps section(1)Directly Diameter;Every grade of ladder Duan Shangjun is at least provided with a seal groove(4);The seal groove(4)Interior axis body is provided with including being in(1)Outside The first notch in side wall surface(41), and it is provided with outer axis body(2)The second notch in interior sidewall surface(42);First slot Oral area(41)With the second notch(42)It is respectively at flow of media gap(3)Inside and outside, the first notch depth a is greater than The sum of second notch depth b and flow of media gap width c;The seal groove(4)It is interior to be equipped with sealing ring(5), sealing ring(5) For O-ring seals(5), sealing ring(5)Radial thickness d be less than or equal to the first notch depth a, and be greater than the second notch The sum of depth b flow of media gap width c;The sealing ring(5)It is that the ring body constituted, sealing ring are enclosed by linear sealing body (5)First end in offer sliding slot(51), sealing ring(5)The second end be equipped with tongue(52), tongue(52)Insertion Sliding slot(51)It is interior and along the chute(51)It adjusts;When the interior axis body(1)With outer axis body(2)When opposing stationary, the sealing ring(5) It is completely in the first notch(41)It is interior;When the interior axis body(1)With outer axis body(2)When relative motion, sealing ring(5)Tongue (52)Opposite sliding slot(51)Moving out makes sealing ring(5)Diameter becomes larger, sealing ring(5)In the second notch(42)It is interior and seal Block up the flow of media gap(3).
2. O-shaped high pressure pump gland according to claim 1, it is characterised in that:The flow of media gap(3)By axial direction Two sides respectively include the first ladder section in the axial direction at middle part(31), second-order bench(32)With third ladder section(33), the first ladder Section(31), second-order bench(32)With third ladder section(33)Interior axis body(1)Diameter becomes larger;The first ladder section (31)On set there are two seal groove(4), second-order bench(32)On set there are two seal groove(4), third ladder section(33)On set There is a seal groove(4).
3. O-shaped high pressure pump gland according to claim 2, it is characterised in that:The interior axis body(1)Including the first axle body Portion(11)With the second axle body portion(12), the first axle body portion(11)With the second axle body portion(12)Interior shaft end be connected and fixed;First axle Body portion(11)With the second axle body portion(12)Connection boundary be in the first ladder section(31)On, and it is in two seal grooves(4)It Between.
4. O-shaped high pressure pump gland according to claim 3, it is characterised in that:The first axle body portion(11)With second Axis body portion(12)It is connected through a screw thread.
5. O-shaped high pressure pump gland according to claim 2, it is characterised in that:In two adjacent ladder sections, outside The first notch in ladder section(41)The flow of media gap of bottom and interior side steps section(3)Inner sidewall is flush.
CN201810812274.9A 2018-07-23 2018-07-23 O-shaped high pressure pump gland Pending CN108869383A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810812274.9A CN108869383A (en) 2018-07-23 2018-07-23 O-shaped high pressure pump gland

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810812274.9A CN108869383A (en) 2018-07-23 2018-07-23 O-shaped high pressure pump gland

Publications (1)

Publication Number Publication Date
CN108869383A true CN108869383A (en) 2018-11-23

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ID=64304265

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810812274.9A Pending CN108869383A (en) 2018-07-23 2018-07-23 O-shaped high pressure pump gland

Country Status (1)

Country Link
CN (1) CN108869383A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024115059A1 (en) * 2022-11-29 2024-06-06 Bayerische Motoren Werke Aktiengesellschaft Rotation-dependent seal of a shaft connection

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10220588A (en) * 1997-02-06 1998-08-21 Nok Corp Sealing device
CN101881336A (en) * 2009-03-06 2010-11-10 通用汽车环球科技运作公司 The lip ring of band coating
US20110037235A1 (en) * 2008-04-15 2011-02-17 Nobuyuki Eguchi Seal ring
CN202520630U (en) * 2012-04-24 2012-11-07 浙江格凌实业有限公司 Sealing ring tensioning mechanism of vortex type air pump
CN205101283U (en) * 2015-10-28 2016-03-23 长城汽车股份有限公司 Turbo charger's compressor end seal structure , turbo charger and car
CN105917095A (en) * 2014-02-25 2016-08-31 三菱重工业株式会社 Seal structure and supercharger provided with said seal structure

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10220588A (en) * 1997-02-06 1998-08-21 Nok Corp Sealing device
US20110037235A1 (en) * 2008-04-15 2011-02-17 Nobuyuki Eguchi Seal ring
CN101881336A (en) * 2009-03-06 2010-11-10 通用汽车环球科技运作公司 The lip ring of band coating
CN202520630U (en) * 2012-04-24 2012-11-07 浙江格凌实业有限公司 Sealing ring tensioning mechanism of vortex type air pump
CN105917095A (en) * 2014-02-25 2016-08-31 三菱重工业株式会社 Seal structure and supercharger provided with said seal structure
CN205101283U (en) * 2015-10-28 2016-03-23 长城汽车股份有限公司 Turbo charger's compressor end seal structure , turbo charger and car

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024115059A1 (en) * 2022-11-29 2024-06-06 Bayerische Motoren Werke Aktiengesellschaft Rotation-dependent seal of a shaft connection

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Application publication date: 20181123

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