CN108869383A - O-shaped high pressure pump gland - Google Patents
O-shaped high pressure pump gland Download PDFInfo
- 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
Links
- 210000004907 gland Anatomy 0.000 title claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 81
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 3
- 230000035508 accumulation Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/12—Shaft sealings using sealing-rings
- F04D29/126—Shaft sealings using sealing-rings especially adapted for liquid pumps
Landscapes
- 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
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.
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 |
Family
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)
| 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)
| 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 |
-
2018
- 2018-07-23 CN CN201810812274.9A patent/CN108869383A/en active Pending
Patent Citations (6)
| 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)
| 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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|---|---|---|---|
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181123 |
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