CN107701727A - A kind of bolt damping sealing device - Google Patents
A kind of bolt damping sealing device Download PDFInfo
- Publication number
- CN107701727A CN107701727A CN201711065675.4A CN201711065675A CN107701727A CN 107701727 A CN107701727 A CN 107701727A CN 201711065675 A CN201711065675 A CN 201711065675A CN 107701727 A CN107701727 A CN 107701727A
- Authority
- CN
- China
- Prior art keywords
- sealing shroud
- pressure ring
- sealing
- bolt
- sealing device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 132
- 238000013016 damping Methods 0.000 title claims abstract description 17
- 230000002093 peripheral effect Effects 0.000 claims abstract description 15
- 238000012856 packing Methods 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- KVNRLNFWIYMESJ-UHFFFAOYSA-N butyronitrile Chemical compound CCCC#N KVNRLNFWIYMESJ-UHFFFAOYSA-N 0.000 claims 1
- 239000003292 glue Substances 0.000 claims 1
- 230000035939 shock Effects 0.000 abstract description 4
- 230000007704 transition Effects 0.000 description 6
- 229920000459 Nitrile rubber Polymers 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Gasket Seals (AREA)
Abstract
Present invention relates particularly to a kind of bolt damping sealing device, mainly solve existing bolt sealing device exist clearance leakage, sealing shroud and barrel wall contact surface is smaller, contact face sealing effectiveness, anti-seismic performance and reliable life do not reach requirement and device assembling correctness and it is less efficient the problems such as.The device device includes sealing shroud and pressure ring, bolt connects machine barrel with connecting plate with pressure ring through sealing shroud, and sealing shroud is step-like sleeve, including big end and small end, the inner peripheral surface of sealing shroud is provided with annular sealing strip, and the bottom surface of small end and the turning of outer peripheral face are sphere fillet structure；The upper end setting of pressure ring is fluted, and the turning of groove floor and side is sphere fillet structure, and the small end of sealing shroud inserts the groove of pressure ring upper end, and is engaged by sphere fillet structure.Invention increases the steadiness of connection and shock resistance, improves device sealing property.
Description
Technical field
The present invention relates to connector sealing device field, and in particular to a kind of bolt damping sealing device.
Background technology
Machine barrel need to be fixedly connected by the equipment such as ball mill using through-the-wall bolt with connector, and to wall-through bolt on machine barrel
Osseotomy site sealed, its bolt sealing device has important influence to the overall performance of equipment, if sealing property is not
It is good, more serious leakage will be had at ball mill bolt hole, also can therefore cause equipment downtime.In addition, when ball mill is run
Big abrading-ball is larger to grinding mill barrel liner plate and lining-plate bolt impact, influences the stable operation of equipment.
Existing ball mill mill skin bolt sealing device structure is as shown in figure 1, the device includes the use in machine barrel 13
To be fixedly connected with the connecting plate 15 of broken mill part, nut is by being set in the compressing member on bolt 14 by the company of being pressed on of sealing shroud 10
On fishplate bar 15；Compressing member includes metallic sheath 11 and end caps 12, and above-mentioned technical proposal has following defect：
First, it is the smooth assembling of realization device, the body of rod of bolt 14 and the cylinder opened up on connecting plate 15 and the wall of machine barrel 13
Kong Jun has certain interval, and also has certain interval with the endoporus on sealing shroud 10 and end caps 12, between such a setting presence
The hidden danger of gap leakage, and thereby result in the disorderly closedown of the equipment such as ball mill；
2nd, sealing shroud 10 is the cylindrical structure of flexible body, and its external diameter is suitable with the diameter of bore of metallic sheath 11, and ball mill exists
Vibration is very big during work, and because the contact surface of sealing shroud 10 and the wall of machine barrel 13 is smaller in actual moving process, it connects the device
Contravention face sealing effectiveness and anti-seismic performance can not reach requirement, are easy to be bolted the extruding of the extruding force between 14 and nut and fester,
Cause device shock resistance, sealing and reliable service life insufficient；
3rd, metallic sheath 11 and end caps 12 use split-type structural, in actual use because the two is being assembled
When have certain interval and length of fit, be often easily tiltedly stuck in some position so that outside metallic sheath endoporus and end caps
Circle axis runout is coaxial, influences the correctness and efficiency assembled when sealing shroud 10 is actual, the correctness and efficiency for assembling device
It is relatively low.
The content of the invention
Present invention aim to address the contact surface that existing bolt sealing device has clearance leakage, sealing shroud and barrel wall
Smaller, contact face sealing effectiveness, anti-seismic performance and reliable life do not reach the correctness and effect of requirement and device assembling
A kind of relatively low problem of rate, there is provided bolt damping sealing device.
The technical scheme is that：
A kind of bolt damping sealing device, including sealing shroud and pressure ring, bolt pass through sealing shroud and pressure ring by machine barrel and company
Fishplate bar connects, and the sealing shroud is step-like sleeve, including big end and small end, and the inner peripheral surface of sealing shroud is close provided with multiple tracks annular
Band is sealed, the bottom surface of the small end and the turning of outer peripheral face are sphere fillet structure；The upper end of the pressure ring sets fluted, groove
The turning of bottom surface and side is sphere fillet structure, and the small end of the sealing shroud inserts the groove of pressure ring upper end, and passes through sphere
Fillet structure is engaged；The upper surface of the pressure ring is provided with regulation gap with the bottom surface at the big end of sealing shroud after being installed in place.
Further, the corner of the big end bottom surface of sealing shroud and small end outer peripheral face is provided with chamfering one.This chamfering can
Increase the intensity of sealing shroud, avoid sealing shroud from being torn at chamfering.
Further, the pressure ring upper surface and the corner of groove inner surface are provided with chamfering two.This chamfering two can
Sealing shroud is set to be installed with pressure ring.
Further, annular seal groove is provided with the face that the sealing shroud contacts with connecting plate.Rubber sealing boot end face
After deformation, sealing shroud is bonded with the faying face of connecting plate finer and close, avoid the leakage of machine barrel end face, so as to comprehensive realization
The sealing of bolt.
Further, the pressure ring upper surface and the regulation gap of the big end bottom surface of sealing shroud are 3-5 ㎜.Set this away from
From, can with compensation sealing cover can not recover after a long time use when distance, make the connection of device more reliable.
Further, the pressure ring upper surface and the regulation gap of the big end bottom surface of sealing shroud are 4 ㎜.
Further, the outer peripheral face of the sealing shroud small end coordinates with pressure ring groove side with gap is combined into.
Further, packing ring is additionally provided between the pressure ring and nut, prevents pressure ring from being relatively rotated with nut.
Further, the sealing shroud is made of nitrile rubber.
Advantages of the present invention is：
1. the present invention sets a plurality of annular interference seal band in the inner peripheral surface of sealing shroud, avoid clearance leakage hidden from structure
Suffer from.Interference seal band on sealing shroud can be smoothly squeezed between the bolt body of rod and sealing shroud when bolt loads sealing shroud
Gap, hold grinding machine bolt after sealing shroud crimp tightly, interference fit also increases the steadiness of connection and anti-simultaneously herein
Pinking, improve the use reliability of device.
2. sealing shroud of the present invention uses staircase structural model, the diameter of axle of sealing shroud and barrel wall contact jaw is increased, in step
Turning sets transition chamfering, adds the intensity of sealing shroud, and staircase structural model adds area in sealing contact and sealing property, together
When also increase the crush resistance of sealing shroud and the shock resistance of device, improve the reliability and service life of sealing device.
3. the present invention uses the structure setting pressure ring of integral type, its front end endoporus is provided with the matching of chamfering two and adapts to sealing shroud platform
The transition chamfering two of rank corner, ensures the centering of groove and screw hole during processing, so ensure that assembling correctness and
Improve the efficiency of assembling during actual maintenance.
4. sealing shroud lower surface of the present invention uses sphere fillet structure, pressure ring is using the sphere round-corner transition to fit therewith
Structure, the cylindrical gap of engagement groove and sealing shroud small end coordinate, centering when further increasing sealing shroud assembling and steady
It is qualitative.
5. being provided with annular seal groove on the face that sealing shroud of the present invention contacts with connecting plate, sealing shroud is set to be tied with connecting plate
The fitting of conjunction face is closer, avoids the leakage of machine barrel end face, so as to the comprehensive sealing for realizing grinding machine bolt, environmental protection.
Brief description of the drawings
Fig. 1 is the structure chart of existing sealing device；
Fig. 2 is the installation diagram of the sealing device of the embodiment of the present invention one；
Fig. 3 is the sectional view that sealing shroud is combined with pressure ring in the embodiment of the present invention one；
Fig. 4 is the installation diagram of the sealing device of the embodiment of the present invention two.
Reference：1- machine barrels, 2- bolts, 3- connecting plates, 4- sealing shrouds, 5- pressure rings, 6- nuts, 7- packing rings, 41- chamferings
One, 42- annular sealing strip, 43- sphere fillet structures, 44- annular seal grooves, 51- chamferings two；10- sealing shrouds, 11- metallic sheaths,
12- end caps, 13- machine barrels, 14- bolts, 15- connecting plates.
Embodiment
The preferred embodiments of the present invention are illustrated below in conjunction with accompanying drawing, it will be appreciated that described herein preferred real
Apply example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
A kind of bolt damping sealing device as shown in Figure 2 and Figure 3, including sealing shroud 4 and pressure ring 5, bolt 2 pass through sealing
Set 4 and pressure ring 5 connect machine barrel 1 and connecting plate 3, and by the axial compression of nut 6, nut 6 compresses sealing shroud 4 to machine barrel 1
It is locking and prevent the leakage of medium in machine barrel 1 for damping on outer wall；Sealing shroud 4 is step-like sleeve, including big end and small
End, the inner peripheral surface of sealing shroud 4 are provided with multiple tracks annular sealing strip 42, and annular sealing strip 42 is ring raised on sealing shroud endoporus
Band, raised seals band act as boss and shank of bolt Interference contact, and sealing does not influence smoothly to load again, the bottom surface of small end
Turning with outer peripheral face is sphere fillet structure 43；The upper end setting of pressure ring 5 is fluted, and the turning of groove floor and side is ball
Face fillet structure, the groove of small end insertion pressure ring 5 upper end of sealing shroud 4, and be engaged by sphere fillet structure 43；Sealing shroud
The outer peripheral face of 4 small ends is combined into gap cooperation with matching somebody with somebody for pressure ring groove side, the bottom that the upper surface of pressure ring 5 and sealing shroud 4 are held greatly
There is certain adjustable range in face after being installed in place, and sealing shroud 4 is specifically made of nitrile rubber.
The adjustable range for the bottom surface that the upper surface of pressure ring 5 is held greatly with sealing shroud 4 is 3-5 ㎜, and optimum distance is 4 ㎜.If
The distance that this distance is put when be able to can not recover after a long time use with compensation sealing set, makes the connection of device more reliable.
Sealing shroud 4 holds greatly bottom surface and the corner of small end outer peripheral face to be provided with chamfering 1, and this chamfering can increase close
The intensity of big envelope 4, sealing shroud 4 is avoided to be torn at chamfering.
The upper surface of pressure ring 5 and the corner of groove inner surface are provided with chamfering 2 51, and this chamfering 2 51 can make sealing shroud 4
Installed with pressure ring 5.
The present invention sets a plurality of annular interference seal band in the inner peripheral surface of sealing shroud, avoids clearance leakage hidden from structure
Suffer from.Interference seal band on sealing shroud can be smoothly squeezed between the bolt body of rod and sealing shroud when bolt loads sealing shroud
Gap, hold grinding machine bolt after sealing shroud crimp tightly, interference fit also increases the steadiness of connection and anti-simultaneously herein
Pinking, improve the use reliability of device.
Sealing shroud of the present invention uses staircase structural model, increases the diameter of axle of sealing shroud and barrel wall contact jaw, is turned in step
Angle sets transition chamfering, adds the intensity of sealing shroud, and staircase structural model adds area in sealing contact and sealing property, simultaneously
The crush resistance of sealing shroud and the shock resistance of device are also increased, improves the reliability and service life of sealing device.
The present invention uses the structure setting pressure ring of integral type, and its front end endoporus is provided with the matching of chamfering two and adapts to sealing shroud step
The transition chamfering two of corner, ensures the centering of groove and screw hole during processing, and then ensure that the correctness of assembling and carry
Efficiency of assembling during high actual maintenance.
Sealing shroud lower surface of the present invention uses sphere fillet structure, and pressure ring is using the sphere round-corner transition knot to fit therewith
Structure, the cylindrical gap of engagement groove and sealing shroud small end coordinate, centering when further increasing sealing shroud assembling and stably
Property.
In other embodiments, as shown in figure 4, being provided with annular seal groove on the face that sealing shroud 4 contacts with connecting plate 3
44, after rubber sealing boot face deformation, sealing shroud 4 is bonded with the faying face of connecting plate 3 finer and close, avoid the end face of machine barrel 1
Leakage, so as to the comprehensive sealing for realizing bolt 2, environmental protection, improve mill running rate；Also set up between pressure ring 5 and nut 6
There is packing ring 7, prevent pressure ring 5 from being relatively rotated with nut 6.
Claims (9)
1. a kind of bolt damping sealing device, including sealing shroud (4) and pressure ring (5), bolt (2) passes through sealing shroud (4) and pressure ring
(5) machine barrel (1) and connecting plate (3) are connected, it is characterised in that：
The sealing shroud (4) is step-like sleeve, including big end and small end, and the inner peripheral surface of sealing shroud (4) is provided with multiple tracks annular
Band (42), the bottom surface of the small end and the turning of outer peripheral face are sphere fillet structure (43)；
The upper end setting of the pressure ring (5) is fluted, and the turning of the groove floor and side is sphere fillet structure, described close
The groove of small end insertion pressure ring (5) upper end of big envelope (4), and be engaged by sphere fillet structure；
The upper surface of the pressure ring (5) is provided with regulation gap with the bottom surface that sealing shroud (4) is held greatly.
2. bolt damping sealing device according to claim 1, it is characterised in that：The big end bottom surface of sealing shroud with it is small
The corner of end outer peripheral face is provided with chamfering one (41).
3. bolt damping sealing device according to claim 2, it is characterised in that：The pressure ring upper surface and table in groove
The corner in face is provided with chamfering two (51).
4. the bolt damping sealing device according to claim 1 or 2 or 3, it is characterised in that：The sealing shroud (4) is with connecting
Annular seal groove (44) is provided with the face of fishplate bar (3) contact.
5. bolt damping sealing device according to claim 4, it is characterised in that：The upper surface of the pressure ring (5) with it is close
The regulation gap of big envelope (4) end bottom surface greatly is 3-5 ㎜.
6. bolt damping sealing device according to claim 5, it is characterised in that：The upper surface of the pressure ring (5) with it is close
The regulation gap of big envelope (4) end bottom surface greatly is 4 ㎜.
7. bolt damping sealing device according to claim 6, it is characterised in that：The periphery of sealing shroud (4) small end
Face coordinates with pressure ring groove side with gap is combined into.
8. bolt damping sealing device according to claim 7, it is characterised in that：Between the pressure ring (5) and nut (6)
It is additionally provided with packing ring (7).
9. bolt damping sealing device according to claim 8, it is characterised in that：The sealing shroud (4) uses butyronitrile rubber
Glue is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711065675.4A CN107701727B (en) | 2017-11-02 | Bolt damping sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711065675.4A CN107701727B (en) | 2017-11-02 | Bolt damping sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107701727A true CN107701727A (en) | 2018-02-16 |
| CN107701727B CN107701727B (en) | 2024-07-09 |
Family
ID=
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201635695U (en) * | 2010-04-23 | 2010-11-17 | 于晟才 | Polish rod sealer |
| CN102853080A (en) * | 2012-09-27 | 2013-01-02 | 天津振兴水泥有限公司 | Buffering bolt sealing device for ball milling machine |
| CN202933749U (en) * | 2012-12-07 | 2013-05-15 | 贵州金赤化工有限责任公司 | Connecting structure for inner cylinder lining plate and outer cylinder of rod mill |
| CN207500470U (en) * | 2017-11-02 | 2018-06-15 | 陕西航天动力高科技股份有限公司 | A kind of bolt damping sealing device |
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201635695U (en) * | 2010-04-23 | 2010-11-17 | 于晟才 | Polish rod sealer |
| CN102853080A (en) * | 2012-09-27 | 2013-01-02 | 天津振兴水泥有限公司 | Buffering bolt sealing device for ball milling machine |
| CN202933749U (en) * | 2012-12-07 | 2013-05-15 | 贵州金赤化工有限责任公司 | Connecting structure for inner cylinder lining plate and outer cylinder of rod mill |
| CN207500470U (en) * | 2017-11-02 | 2018-06-15 | 陕西航天动力高科技股份有限公司 | A kind of bolt damping sealing device |
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Legal Events
| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Qi Wen Inventor after: Wang Gui Inventor after: Wu Qin Inventor after: An Boyou Inventor after: Lu Biao Inventor after: Ning Xuan Inventor after: Duan Pengfei Inventor before: Li Feng Inventor before: Qi Wen Inventor before: Wang Gui Inventor before: Wu Qin Inventor before: An Boyou Inventor before: Lu Biao Inventor before: Feng Zhe Inventor before: Ning Xuan Inventor before: Duan Pengfei |
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| CB03 | Change of inventor or designer information | ||
| GR01 | Patent grant |