CN110296216A - Drain oil anti-vibration sealing device and sealing structure - Google Patents
Drain oil anti-vibration sealing device and sealing structure Download PDFInfo
- Publication number
- CN110296216A CN110296216A CN201910686480.4A CN201910686480A CN110296216A CN 110296216 A CN110296216 A CN 110296216A CN 201910686480 A CN201910686480 A CN 201910686480A CN 110296216 A CN110296216 A CN 110296216A
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- Prior art keywords
- plug
- sealing
- drain oil
- ring
- hole
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- 238000007789 sealing Methods 0.000 title claims abstract description 161
- 230000006835 compression Effects 0.000 claims abstract description 8
- 238000007906 compression Methods 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 239000004519 grease Substances 0.000 claims description 4
- 230000001050 lubricating effect Effects 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 239000000428 dust Substances 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 61
- 239000003245 coal Substances 0.000 description 12
- 239000007788 liquid Substances 0.000 description 8
- 239000003818 cinder Substances 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005065 mining Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 239000012208 gear oil Substances 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 235000003642 hunger Nutrition 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000037351 starvation Effects 0.000 description 1
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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0408—Exchange, draining or filling of transmission lubricant
-
- 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
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bolts, Nuts, And Washers (AREA)
Abstract
The present invention relates to a kind of drain oil anti-vibration sealing devices and sealing structure, the sealing device includes primary seal portion and secondary sealing portion, primary seal portion includes plug screw and combination sealing washer, secondary sealing portion includes plug, sealing ring and retaining ring, the sealing structure includes drain oil and the sealing device, drain oil is arranged to inner small and outside big shoulder hole structure, small diameter bore is threaded hole, large diameter hole is unthreaded hole, the plug of plug screw is threaded in threaded hole, the plug screw head of plug screw is by combination sealing washer axial compression on the annular end face of unthreaded hole and threaded hole intersection, the major diameter part and unthreaded hole clearance fit of plug, by forming radial seal between sealing ring and unthreaded hole, shield ring sleeve is in the big of plug, the intersection of small diameter portion, its outer edge is embedded in the circlip groove on unthreaded hole inner wall, plug is set to withstand on the outer end of plug screw head On face.The present invention seals more reliable property, adapts to vibration, the serious workplace of dust, is avoided that drain oil oil leak.
Description
Technical field
It is formed by sealing structure the present invention relates to a kind of sealing device of drain oil and using the sealing device, especially
Suitable for coalcutter etc. usually in bad environments, the excavating equipment of the serious occasion work of dust.
Background technique
Coal in China rich reserves, coalcutter are the capital equipments of fully-mechanized mining working coal mining.The rocker arm of coalcutter and
Tractive unit is all that corresponding function is realized by gear train assembly.For coalcutter since operating condition is severe, coal ash and dust are serious, by
It to be regularly replaced in coalcutter transmission system internal fault or gear cavity internal gear oil, need to be discharged by drain oil, be
Discharge is clean, and general drain oil is all disposed within the bottom of gear cavity body.Coalcutter drain oil generally uses plug screw to add rubber
Washer is tightened by screw thread and is sealed, and unscrewing plug screw is convenient to drain the oil.
However, coalcutter walks back and forth when coal cutting, since running gear and scrapper conveyor pin row are that the non-conjugated engagement of open type passes
It is dynamic, vibration can be generated；Meanwhile when coal mining machine roller coal cutting, due to the variation of Coal Quality situation, the vibration of high frequency can be also generated
It is dynamic, therefore coalcutter operating condition is severe, vibration is frequent.Due to the vibration of coalcutter, it may appear that plug screw loosens even vibration and falls off and loses
The phenomenon that mistake.Since plug screw is mounted on fuselage bottom, plug screw loosening cannot be found in time, lead to oil leak in gear cavity, cause
Gear wear is serious, and high temperature scuffing occurs, and all gears are scrapped.Additionally, there are certain mine side personnel overhaul it is not in place
Situation, plug screw, which is screwed into, not to be tightened but, causes gear oil slowly to leak from drain oil, or do not focus on overhauling, it should daily test,
Become monthly test or random maintenance, leaves hidden danger for oil liquid leakage.
Summary of the invention
The object of the present invention is to provide a kind of drain oil anti-vibration sealing device, sealing reliability with higher, energy
Larger vibration, the serious workplace of dust are adapted to, drain oil oil leak or permeability can be avoided substantially.
Main technical schemes of the invention have:
A kind of drain oil anti-vibration sealing device, including primary seal portion and secondary sealing portion, the primary seal portion are axial
Seal assembly, the secondary sealing portion are radial seal assembly, and the secondary sealing portion is located at the primary seal portion under use state
Outside, the two are coaxially bonded arrangement.
The primary seal portion includes plug screw and combination sealing washer, and the plug screw is stepped shaft structure, and major diameter portion is divided into
Plug screw head, minor diameter are divided into plug, and external screw thread is provided on plug, and the combination sealing washer covers on plug,
The secondary sealing portion includes plug, sealing ring and retaining ring, and the plug is stepped shaft structure, the outer diameter of the major diameter part of plug
It is equipped with seal groove, the sealing ring is mounted in the seal groove, small diameter portion of the shield ring sleeve in plug
On outer diameter, the outer diameter of the retaining ring is greater than the outer diameter of the major diameter part of the plug, under use state, the combination sealing pad
Circle is fitted on the root anchor ring of plug screw head, and the retaining ring is fitted on the root anchor ring of plug major diameter part, the plug
The outer end of major diameter part be resisted against on the outer end face of plug screw head.
Axially extending screw hole can be equipped on the outer end face of the small diameter portion of the plug.
A kind of drain oil anti-vibration sealing structure, including primary seal portion and secondary sealing portion, the primary seal portion are axial
Seal assembly, the secondary sealing portion is radial seal assembly, and under installation condition, the primary seal portion and secondary sealing portion are from inside to outside
It is in turn mounted in drain oil, the two is coaxially bonded arrangement.
The primary seal portion includes plug screw and combination sealing washer, and the plug screw is stepped shaft structure, and major diameter portion is divided into
Plug screw head, minor diameter are divided into plug, and external screw thread is provided on plug, and the combination sealing washer covers on plug,
The secondary sealing portion includes plug, sealing ring and retaining ring, and the plug is stepped shaft structure, the outer diameter of the major diameter part of plug
It is equipped with seal groove, the sealing ring is mounted in the seal groove, small diameter portion of the shield ring sleeve in plug
On outer diameter, the outer diameter of the retaining ring is greater than the outer diameter of the major diameter part of the plug, and the drain oil is arranged to inner small and outside big
Shoulder hole structure, small diameter bore is threaded hole, and large diameter hole is unthreaded hole, and under installation condition, the plug is threaded in
In threaded hole, the plug screw head is located in unthreaded hole and hands over the combination sealing washer axial compression in the unthreaded hole and threaded hole
On annular end face at boundary, the combination sealing washer is fitted on the root anchor ring of plug screw head, the major diameter portion of the plug
Point with unthreaded hole clearance fit, by forming radial seal between the sealing ring and unthreaded hole, the inner wall of the unthreaded hole is equipped with retaining ring
Slot, the retaining ring are embedded in the circlip groove, and the retaining ring is fitted on the root anchor ring of plug major diameter part, are made described stifled
The outer end of the major diameter part of head is inwardly withstood on the outer end face of plug screw head.
The surface of the plug is preferably made through blackening process or the plug of stainless steel material.
The surface of the sealing ring and plug is coated with lubricating grease.
The beneficial effects of the present invention are:
For the deficiency of traditional drain oil Seal Design, drain oil anti-vibration sealing device proposed by the present invention
Dual-seal is formed by using primary seal portion and secondary sealing portion, is mutually redundant design, significantly improves sealing at drain oil
Reliability effectively prevent oil liquid to leak from drain oil.
The raising of the reliability of sealing can be embodied specifically from the following aspects:
First is that withstanding plug screw by secondary sealing portion, even operating condition is severe when coalcutter works, vibration frequently, also can be effective
It prevents plug screw from loosening, therefore avoids due to plug screw loosening and oil leak.
Second is that if plug screw is twisted not tightly, the retaining ring in secondary sealing portion is just installed to enter, therefore in the same of installation sealing device
When can also play the role of automatic detection to installation situation, can avoid unqualified due to manually overhauling the installation of not in place or sealing device
Caused seal failure and oil leak.
Third is that due to the presence in secondary sealing portion, even if failure leakage of the primary seal portion there are seal aging or in special circumstances
Oil, secondary sealing portion can also play sealing function, to keep the sealing state at drain oil.
Fourth is that the corruption of the corrosive water and dust of working face to primary seal can be effectively prevent due to the presence in secondary sealing portion
Erosion, aging, corrosion etc. not will lead to plug screw not only and dismantle difficulty because of corrosion, can also reduce the frequency of maintenance, such as by day
Inspection becomes monthly test, saves the repair time.It is serious particularly with some coal mining geology condition moistures and in the case where having aqueous corrosion, this
The advantage of the sealing device of invention becomes apparent.
It fifth is that the retaining ring directly compresses plug, can prevent plug from falling off, ensure secondary sealing portion to a certain extent
Operating position and sealing performance.And once retaining ring is worn by coal cinder, plug is fallen, even if also must more renew without oil leak
Sealing device can achieve the effect of detection warning in advance.
Detailed description of the invention
Fig. 1 is the structural schematic diagram in the primary seal portion of one embodiment of the drain oil anti-vibration sealing device；
Fig. 2 is the structural schematic diagram in the secondary sealing portion of one embodiment of the drain oil anti-vibration sealing device；
Fig. 3 is that the primary seal portion of one embodiment of the drain oil anti-vibration sealing device and secondary sealing portion use shape
Installation site relation schematic diagram under state；
Fig. 4 is the structural schematic diagram of one embodiment of the drain oil anti-vibration sealing structure.
Detailed description of the invention:
1. plug screw；11. plug screw head；12. plug；2. combination sealing washer；3. plug；31. screw hole；4. sealing ring；
5. retaining ring；6. drain oil；7. oil liquid；8. coal cinder.
Specific embodiment
The invention discloses a kind of drain oil anti-vibration sealing device, including be used as first layer sealing primary seal portion and
Secondary sealing portion as second layer sealing, the primary seal portion are used axial seal component, are installed with thread forms, the pair is close
Envelope portion uses radial seal assembly, is installed in a manner of shaft hole matching, and the secondary sealing portion includes axial limiting part, under use state
The secondary sealing portion is located at the outside in the primary seal portion, and the two is coaxially bonded arrangement, makees in the limit of the axial limiting part
It is inwardly withstood in primary seal portion with the lower secondary sealing portion.The primary seal portion and secondary sealing portion form dual-seal, superfluous each other
Remaining design can be effectively prevented oil liquid and leak from drain oil.
It is one embodiment of the drain oil anti-vibration sealing device shown in attached drawing 1-3.The primary seal portion (referring to
It Fig. 1) include plug screw 1 and combination sealing washer 2.The plug screw is stepped shaft structure, and major diameter portion is divided into plug screw head 11, minor diameter
Part is plug 12.External screw thread is provided on plug, the combination sealing washer covers on plug.The primary seal portion
It is first screwed into drain oil using thread forms as first layer sealing, axial compression combination sealing washer forms axial seal, prevents
Oil liquid leakage.The secondary sealing portion (referring to fig. 2) includes plug 3, sealing ring 4 and retaining ring 5, and the retaining ring is used as the axial limit
Position part.The plug is stepped shaft structure, and the outer diameter of the major diameter part of plug is equipped with seal groove, the sealing ring installation
In the seal groove, it is gap-matched between the major diameter part and drain oil of the plug, utilizes the sealing ring
Radial seal is formed between plug and drain oil, as second layer sealing and backup seal.It once fails in primary seal portion
When, secondary sealing portion can also prevent oil liquid leakage from gear cavity oil starvation being caused to generate catastrophe failure, while secondary sealing portion can also effectively prevent
The only corrosion and aging of the impurity to primary seal portion such as extraneous water and dust improves the sealing reliability in primary seal portion.The gear
For snare on the outer diameter of the small diameter portion of plug, the outer diameter of the retaining ring is greater than the outer diameter of the major diameter part of the plug.
(referring to Fig. 3) under use state, by being kept off using the retaining ring by the body of the outer edge insertion setting drain oil of the retaining ring
Firmly plug can prevent plug from falling off.At this point, the combination sealing washer is compacted on the root anchor ring for being fitted in plug screw head, institute
It states retaining ring compression to be fitted on the root anchor ring of plug major diameter part, the outer end of the major diameter part of the plug withstands on spiral shell
On the outer end face of chock plug 11, secondary sealing portion plays the role of axial limiting to primary seal portion, therefore can prevent plug screw due to vibration
It loosens, is leaked so as to avoid oil liquid from primary seal portion.
The drain oil can carry out one or more following optimization designs with anti-vibration sealing device:
1) sealing ring uses O-ring, and materials are convenient, and the seal groove is O-ring slot, and structure is simple.
2) outer end face of the small diameter portion of the plug is equipped with axially extending screw hole 31, is screwed into plain screw
Afterwards, the disassembly of the plug can be facilitated.
3) surface of the plug is made through blackening process or the plug of stainless steel material, can prevent plug
Because exposed get rusty causes to be difficult to dismantle for a long time.
It is using draining the oil after above-mentioned sealing device the invention also discloses a kind of drain oil anti-vibration sealing structure
Hole assembling structure, the secondary sealing portion including being used as the primary seal portion of first layer sealing and as second layer sealing, the primary seal
Portion uses axial seal component, is installed with thread forms, and the secondary sealing portion uses radial seal assembly, in a manner of shaft hole matching
Installation, the secondary sealing portion include axial limiting part, and under installation condition, the primary seal portion and secondary sealing portion are from inside to outside successively
It is installed in drain oil, the two is coaxially arranged, and the secondary sealing portion is inwardly withstood under the position-limiting action of the axial limiting part
In primary seal portion.
As shown in Figs 1-4, the primary seal portion includes plug screw 1 and combination sealing washer 2, and the plug screw is multi-diameter shaft knot
Structure, major diameter portion are divided into plug screw head 11, and minor diameter is divided into plug 12, is provided with external screw thread on plug.The combination is close
Packing snare is on plug.The secondary sealing portion includes plug 3, sealing ring 4 and retaining ring 5, and the retaining ring is used as the axial direction
Locating part, the plug are stepped shaft structure, and the outer diameter of the major diameter part of plug is equipped with seal groove, the sealing ring peace
In the seal groove, for the shield ring sleeve on the outer diameter of the small diameter portion of plug, the outer diameter of the retaining ring is greater than institute
State the outer diameter of the major diameter part of plug.
As shown in figure 4, the drain oil 6 is arranged to inner small and outside big shoulder hole structure, small diameter bore is threaded hole, big straight
Diameter hole is unthreaded hole.Under installation condition, the plug is threaded in threaded hole, and the plug screw head is located in unthreaded hole and by institute
2 axial compression of combination sealing washer is stated on the annular end face of the unthreaded hole and threaded hole intersection, the combination sealing washer
It is fitted on the root anchor ring of plug screw head.The diameter of the unthreaded hole is slightly larger than the diameter of the plug screw head.The plug 3 it is big straight
Path portion and unthreaded hole clearance fit, by forming radial seal between the sealing ring 4 and unthreaded hole.The inner wall of the unthreaded hole is equipped with
The outer edge of circlip groove, the retaining ring 5 is embedded in the circlip groove, and the retaining ring is fitted in the root loop of plug major diameter part
On face, withstand on the outer end of the major diameter part of the plug inwardly on the outer end face of plug screw head.The inside of the circlip groove
Wall should be equal to the combination sealing washer, plug screw head and plug to unthreaded hole at a distance from the annular end face of threaded hole intersection
The summation of the axial width of major diameter part.On the one hand the retaining ring is used to directly compress plug, prevent plug from falling off, another party
Plug screw is withstood by plug in face indirectly, prevents plug screw from loosening, and oil liquid 7 at plug screw is avoided to leak.Moreover, due to primary seal portion
With the dimensional fits in secondary sealing portion, if the plug screw in primary seal portion is not tightened, the retaining ring in secondary sealing portion will be installed not into gear
In ring recess, therefore primary seal portion can be prevented because not having axial compression due to oil leak.
Axially extending screw hole is preferably provided on the outer end face of the small diameter portion of the plug.
The surface of the plug is preferably made through blackening process or the plug of stainless steel material.
The surface of the sealing ring and plug is preferably coated with lubricating grease.
When installation, it is first packed into plug screw into drain oil on plug screw by 2 sets of combination sealing washer, tightens plug screw 1, uses spiral shell
Chock plug on annular interface between threaded hole and unthreaded hole, is then mounted in combination sealing washer axial compression sealing ring 4
In the seal groove of plug 3, and lubricating grease is smeared on the surface of sealing ring and plug, is then charged into the plug with sealing ring 4
3, finally it is packed into retaining ring 5.If the installation of retaining ring 5 is not entered, illustrate that plug screw 1 is not tightened all.
When draining the oil, then a screw thread is connected in the screw hole on plug, by being pulled outwardly by retaining ring 5 of first dismantling
Screw removes plug, finally dismantle plug screw 1 and combination sealing washer 2.
The depth of the unthreaded hole is not less than the axial direction that usually should be slightly bigger than the combination sealing washer, plug screw head and plug
The summation of thickness makes coal cinder 8 not reach the plug and retaining ring as far as possible.
The bottom of the equipment oil pocket body such as coalcutter is arranged in anti-vibration sealing structure for the drain oil, facilitates intracavitary put
It is oily thorough.Secondary sealing portion is in extreme circumstances since there are retaining ring damages, plug for the abrasion of the coal cinder 8 under vibration or body
A possibility that falling off, when such case occurs, the seal failure of secondary sealing portion, but since primary seal portion is in the depths of drain oil, one
As in the case of coal cinder 8 do not reach primary seal portion, therefore not will lead to the oil leak of primary seal portion.Meanwhile in the working face repair time
It is interior, secondary sealing portion can be very easy to find by range estimation and lost, once discovery secondary sealing portion loses, exactly remind staff must
The drain oil that must more renew anti-vibration sealing device plays the role of warning in advance prevention.Therefore, under normal circumstances, pass through
This drain oil anti-vibration sealing device, sealing performance greatly improves at drain oil, and mine side personnel completely can be by original day
It examines this drain oil and is changed to monthly test, reduce the maintenance frequency, mitigate workload.
Claims (10)
1. a kind of drain oil anti-vibration sealing device, it is characterised in that: including primary seal portion and secondary sealing portion, the primary seal
Portion is axial seal component, and the secondary sealing portion is radial seal assembly, and the secondary sealing portion is located at the master under use state
The outside of sealing, the two are coaxially bonded arrangement.
2. drain oil as described in claim 1 anti-vibration sealing device, it is characterised in that: the primary seal portion includes plug screw
With combination sealing washer, the plug screw is stepped shaft structure, and major diameter portion is divided into plug screw head, and minor diameter is divided into plug, spiral shell
External screw thread is provided on cock body, the combination sealing washer covers on plug, the secondary sealing portion include plug, sealing ring and
Retaining ring, the plug are stepped shaft structure, and the outer diameter of the major diameter part of plug is equipped with seal groove, the sealing ring installation
In the seal groove, on the outer diameter of the small diameter portion of plug, the outer diameter of the retaining ring is greater than described the shield ring sleeve
The outer diameter of the major diameter part of plug, under use state, the combination sealing washer is fitted on the root anchor ring of plug screw head, institute
It states retaining ring to be fitted on the root anchor ring of plug major diameter part, the outer end of the major diameter part of the plug is resisted against plug screw
On the outer end face of head.
3. drain oil anti-vibration sealing device as claimed in claim 2, it is characterised in that: the sealing ring uses O-ring,
The seal groove is O-ring slot.
4. drain oil as claimed in claim 2 anti-vibration sealing device, it is characterised in that: the small diameter portion of the plug
Outer end face be equipped with axially extending screw hole.
5. the drain oil anti-vibration sealing device as described in claim 2,3 or 4, it is characterised in that: the surface of the plug
It is made through blackening process or the plug of stainless steel material.
6. a kind of drain oil anti-vibration sealing structure, it is characterised in that: including primary seal portion and secondary sealing portion, the primary seal
Portion is axial seal component, and the secondary sealing portion is radial seal assembly, under installation condition, the primary seal portion and secondary sealing portion
It is in turn mounted in drain oil from inside to outside, the two is coaxially bonded arrangement.
7. drain oil as claimed in claim 6 anti-vibration sealing structure, it is characterised in that: the primary seal portion includes plug screw
With combination sealing washer, the plug screw is stepped shaft structure, and major diameter portion is divided into plug screw head, and minor diameter is divided into plug, spiral shell
External screw thread is provided on cock body, the combination sealing washer covers on plug, the secondary sealing portion include plug, sealing ring and
Retaining ring, the plug are stepped shaft structure, and the outer diameter of the major diameter part of plug is equipped with seal groove, the sealing ring installation
In the seal groove, on the outer diameter of the small diameter portion of plug, the outer diameter of the retaining ring is greater than described the shield ring sleeve
The outer diameter of the major diameter part of plug, the drain oil are arranged to inner small and outside big shoulder hole structure, and small diameter bore is threaded hole,
Large diameter hole is unthreaded hole, and under installation condition, the plug is threaded in threaded hole, and the plug screw head is located in unthreaded hole simultaneously
By the combination sealing washer axial compression on the annular end face of the unthreaded hole and threaded hole intersection, the combination sealing pad
Circle is fitted on the root anchor ring of plug screw head, and the major diameter part and unthreaded hole clearance fit of the plug pass through the sealing ring
Radial seal is formed between unthreaded hole, the inner wall of the unthreaded hole is equipped with circlip groove, and the retaining ring is embedded in the circlip groove, described
Retaining ring is fitted on the root anchor ring of plug major diameter part, and the outer end of the major diameter part of the plug is made inwardly to withstand on spiral shell
On the outer end face of chock plug.
8. drain oil as claimed in claim 7 anti-vibration sealing structure, it is characterised in that: the small diameter portion of the plug
Outer end face be equipped with axially extending screw hole.
9. drain oil as claimed in claim 7 anti-vibration sealing structure, it is characterised in that: the surface of the plug is through blacking
Processing or the plug are made of stainless steel material.
10. drain oil as claimed in claim 7 anti-vibration sealing structure, it is characterised in that: the sealing ring and plug
Surface is coated with lubricating grease.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910686480.4A CN110296216A (en) | 2019-07-29 | 2019-07-29 | Drain oil anti-vibration sealing device and sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910686480.4A CN110296216A (en) | 2019-07-29 | 2019-07-29 | Drain oil anti-vibration sealing device and sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110296216A true CN110296216A (en) | 2019-10-01 |
Family
ID=68032100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910686480.4A Pending CN110296216A (en) | 2019-07-29 | 2019-07-29 | Drain oil anti-vibration sealing device and sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110296216A (en) |
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| JPH0666372A (en) * | 1992-08-21 | 1994-03-08 | Toyota Autom Loom Works Ltd | Drain plug |
| CN101070897A (en) * | 2006-05-10 | 2007-11-14 | 濮阳市信宇石油机械化工有限公司 | Anti-theft lubricant speed reducer |
| KR100783547B1 (en) * | 2006-12-14 | 2007-12-07 | 현대자동차주식회사 | Drain plug for oil pen |
| CN102384267A (en) * | 2011-10-13 | 2012-03-21 | 中国船舶重工集团公司第七○五研究所 | Plug fixing structure capable of displaying stressed condition of plug |
| CN202884441U (en) * | 2012-10-25 | 2013-04-17 | 安徽山河矿业装备股份有限公司 | Automatic lubrication device for small-power coal mining machine walking axle |
| CN203856541U (en) * | 2014-02-24 | 2014-10-01 | 奇瑞汽车股份有限公司 | Sump oil discharge screw plug |
| CN203906724U (en) * | 2014-03-05 | 2014-10-29 | 重庆公冠机械制造有限公司 | Box provided with oil drainage plug |
| CN204372132U (en) * | 2014-12-30 | 2015-06-03 | 中外合资沃得重工（中国）有限公司 | Gear box purge cock |
| CN205605413U (en) * | 2016-04-15 | 2016-09-28 | 宝鸡石油机械有限责任公司 | Valve -cover seal structure for bore hole pump |
| CN206539700U (en) * | 2017-02-10 | 2017-10-03 | 上海天合石油工程股份有限公司 | The stifled oily component of one kind |
| CN210830437U (en) * | 2019-07-29 | 2020-06-23 | 天地科技股份有限公司上海分公司 | Vibration-proof sealing device and sealing structure for oil drain hole |
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