CN206555442U - A kind of sealing device supported for rotary forging machine spherical bearing static pressure - Google Patents
A kind of sealing device supported for rotary forging machine spherical bearing static pressure Download PDFInfo
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- CN206555442U CN206555442U CN201720297107.6U CN201720297107U CN206555442U CN 206555442 U CN206555442 U CN 206555442U CN 201720297107 U CN201720297107 U CN 201720297107U CN 206555442 U CN206555442 U CN 206555442U
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- primary seal
- outer ring
- lip
- seal circle
- oil suction
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Abstract
A kind of sealing device supported for rotary forging machine spherical bearing static pressure, it includes primary seal circle, sealed outer ring, sealed outer ring includes upper surface, lower surface, first surface and the second surface with the first inclined plane, primary seal circle includes top surface, bottom surface, lateral surface and sealing surface, and the second surface of sealed outer ring is pressed against on the lateral surface of primary seal circle；Integrally formed primary seal lip, oil suction section, middle cavity, secondary seal lip and dustproof and waterproof lip are disposed with the sealing surface of primary seal circle, oil suction section is provided between primary seal lip and secondary seal lip, oil suction section is recessed along primary seal circle to sealed outer ring direction, middle cavity is provided between oil suction section and secondary seal lip, dustproof and waterproof lip is located at the bottom surface of primary seal circle and is downwardly projected, and the top surface of primary seal circle is less than the upper surface of the sealed outer ring and difference in height is H1.
Description
Technical field
The utility model belongs to plant equipment field of sealing technology, and in particular to a kind of for the quiet of rotary forging machine spherical bearing
Press the sealing device of support.
Background technology
It is that a monolithic molding technology for replacing conventional wrought processes can be deformed with continuous and local that swing, which is rolled, therefore can be big
The earth reduction deformation force.If Making mold dimensional accuracy is high, part vertical precision is rolled up to 0.025 μm, surface roughness
Up to Ra0.4-0.8 μm, it is adapted to processing thin and complex-shaped cake disk forging, ring class and flanged (FLGD) long-axis forging,
Semiaxis, bevel gear, sprocket wheel, bearing pin after such as ring flange, wheel blank, milling cutter base, butterfly spring base, automobile.Enter in fixation pressure
In the case of oil, static pressure support be by regulation flow controller damping and change oil film thickness, make oil pocket pressure change and
Balance external applied load.Static pressure bearing type yaw includes ball seat, oil pocket, oil-recovery tank etc., and the head of yaw uses Static pressure spherical bearing
Supporting, can bear larger axial operating pressure, spherical bearing has good self-centering performance and even wearing, bearing capacity
It is high.Sliding cross coupling can be used in just between eccentric bushing and output shaft of gear-box, the radial support of inside and outside eccentric bushing is used
Needle bearing, yaw uses self-aligning roller bearing with interior eccentric inner room.Rolling bearing in yaw structure, crosshead shoe structure is equal
The lubricating oil that is flowed down using gearbox is lubricated.The central axis of interior the eccentric bushing centre of gyration and machine is misaligned, rotation
When relative position constantly change, there is the relative motion of high-frequency unbalance loading and high pressure and fair speed, will to the sealing of lower end
Ask very high, the current country there is no reliable sealing ring, before many to be sealed using conventional YX types sealing or square-section, work
During the situation of oil leak occurs in the presence of unbalance loading, the high-pressure cooling water below sealing effectiveness is undesirable, which exists, to be entered in oil
Risk, as the dynamic sphere of spherical bearing is moved back and forth takes sealing out of parts of lubricating oil when unloaded, is caused " oil leak ".Together
When due to the motion frequency of spherical bearing it is very high, the service life of sealing ring is very short, be accomplished by within 10-15 days under normal circumstances change
Sealing ring.
Utility model content
In view of the above-mentioned problems, the utility model provides a kind of sealing dress supported for rotary forging machine spherical bearing static pressure
Put, its can in the case where keeping device structure and space substantially without large change there is provided one kind it is simple and reasonable, be easy to plus
Work, sealed reliable, the sealing mechanism for being convenient for changing installation.
Scheme of the present utility model is as follows：
A kind of sealing device supported for rotary forging machine spherical bearing static pressure, it includes primary seal circle and sealing is outer
Circle, the sealed outer ring includes upper surface, lower surface, first surface and the second surface with the first inclined plane；The master is close
Seal includes top surface, bottom surface, lateral surface and sealing surface, and the second surface of the sealed outer ring is pressed against the outside of primary seal circle
On face；The sealing surface of the primary seal circle is disposed with integrally formed primary seal lip, oil suction section, middle cavity, secondary close
Lip and dustproof and waterproof lip are sealed, the oil suction section, the oil suction section edge are provided between the primary seal lip and secondary seal lip
The primary seal circle recessed to sealed outer ring direction, be provided between oil suction section and secondary seal lip empty in the middle of described
Chamber, the dustproof and waterproof lip is located at the bottom surface of the primary seal circle and is downwardly projected；And the top surface of the primary seal circle is low
In the upper surface of the sealed outer ring and difference in height be H1.
The middle cavity forms irregular flute profile, and the middle cavity is inhaled close to the first side wall of oil suction section along described
Oily section is tilted towards the primary seal lip, the middle cavity close to secondary seal lip second sidewall away from described dust-proof
The direction of the primary seal lip of waterproof lip is tilted.
The gradient of first inclined plane of the sealed outer ring is identical with the gradient of the lateral surface of the primary seal circle.
Preferably, the gradient is 5 °.
Preferably, the height difference H 1 of the top surface of the primary seal circle and the upper surface of the sealed outer ring is 1.2mm.
Preferably, the angle that sphere formation is moved in the top of the oil suction section with spherical bearing is 1.5 °, and the angle can
The formation suction when the dynamic sphere of spherical bearing is moved back and forth is met to suck back the lubricating oil in the middle cavity.
Preferably, the length of the oil suction section is 2mm.
Compared with prior art, the utility model has the advantages that：For rotary forging machine spherical bearing static pressure
The structure of primary seal circle and the adjustable seal preload of sealed outer ring combination, wherein primary seal are employed in the sealing device of support
Lip undertakes main sealing function；Oil suction section utilizes the distinctive periodic reverse motion of rotary forging machine, will stretch out ball when moving
The lubricating oil that the dynamic sphere of spherical bearing is brought out when carrying out retraction movement, go again by inspiration, can reduce the leakage of lubricating oil, simultaneously
The presence of its middle cavity is also beneficial to the sealing of high pressure conditions；Dustproof and waterproof lip positioned at primary seal circle bottom be serve it is anti-
The effect of konisphere, it can prevent the water adhered on the dynamic sphere of spherical bearing and foul from entering.In addition, the material of inner side primary seal circle
Matter is the heat-resisting ptfe composite of high abrasion, and the sealed outer ring in outside ensures it in a constant temperature using heat-resisting rubber
The reliable pretightning force of primary seal circle of inner side is given in the range of degree prevents the situation for occurring poor sealing during spherical bearing unbalance loading from making
Into oil leak.
Brief description of the drawings
Below in conjunction with accompanying drawing, the utility model is described in detail：
The structure for the sealing device that Fig. 1 is supported according to the static pressure of the present utility model for rotary forging machine spherical bearing is shown
It is intended to；
The sealing device partial enlargement that Fig. 2 is supported according to the static pressure of the present utility model for rotary forging machine spherical bearing
Schematic diagram.
Embodiment
Below in conjunction with the accompanying drawings, embodiment of the present utility model is further elaborated, so that this practicality is new
The technical scheme of type is more easily understood, it should be appreciated that specific embodiment described herein is used only for explaining this reality
It is not to limitation of the present utility model with new.
As depicted in figs. 1 and 2, the static pressure of the present utility model for rotary forging machine spherical bearing supports 11 sealing dress
1 is put, it includes primary seal circle 2 and the sealed outer ring 3 being enclosed on outside primary seal circle 2.
Sealed outer ring 3 includes upper surface 31, lower surface 32, first surface 33 and the second surface with the first inclined plane
34.First surface 33 is cylindrical as the outer peripheral face of sealed outer ring 3.First inclined plane 34 has a gradient, and the gradient is excellent
Elect 5 ° as.Sealed outer ring 3 is preferably rubber outer ring, to be sealed with certain tension force and elastic force.
Primary seal circle 2 includes top surface 21, bottom surface 22, lateral surface 23 and sealing surface 24, the second surface 34 of sealed outer ring 2
It is pressed against on the lateral surface 23 of primary seal circle 2.The lateral surface 23 of primary seal circle 2 and the sealing surface 24 of primary seal circle 2 are to tilt
Face, and gradient is identical, the i.e. phase of lateral surface 23 of the second surface 34 and primary seal circle 2 with the first inclined plane of sealed outer ring 3
It is mutually parallel, therefore the two can be fitted close and fit together.The sealing surface 24 of primary seal circle 2 is sealed sides, primary seal circle 2
Sealing surface 24 on be disposed with integrally formed primary seal lip 4, oil suction section 8, middle cavity 7, secondary seal lip 5 and anti-
Dirt waterproof lip 6.Oil suction section 8 between primary seal lip 4 and secondary seal lip 5 is recessed along primary seal circle 2 towards sealed outer ring 3
Enter.Middle cavity 7 is provided between oil suction section 8 and secondary seal lip 5, middle cavity 7 forms irregular flute profile, and middle
Cavity 7 is tilted close to the first side wall of oil suction section 8 along oil suction section 8 towards the primary seal lip, and middle cavity 7 is close to secondary
The second sidewall of sealing lip 5 is tilted away from the direction of the primary seal lip 4 of dustproof and waterproof lip 6.It is close that dustproof and waterproof lip 6 is located at master
The bottom surface 22 of seal 2 is simultaneously downwardly projected, in order to strengthen the protection effect of dustproof and waterproof lip, it is preferred that dustproof and waterproof lip 6 it is minimum
Part 61 is less than the bottom surface 22 of primary seal circle 2, and lower surface 32 and the primary seal circle 2 of sealed outer ring 3 bottom surface 22 positioned at same
On horizontal line.The upper surface 21 of primary seal circle 2 has height difference H 1, the upper table of primary seal circle 2 with the upper surface 31 of sealed outer ring 3
Face 21 is less than the upper surface 31 of sealed outer ring 3, and such sealed outer ring 3 more preferably can provide pretightning force by primary seal circle 2, make whole
Individual sealing structure is relatively reliable.
Preferably, primary seal circle 2 is preferably rubber seal, to be sealed with certain tension force and elastic force.
Preferably, the gradient of the first inclined plane 34 of sealed outer ring 3 is identical with the gradient of the lateral surface 23 of primary seal circle 2.
Preferably, the gradient of the first inclined plane 34 of sealed outer ring 3 is 5 °.
Preferably, the height difference H 1 of the top surface 21 of primary seal circle 2 and the upper surface of sealed outer ring is 1.2mm.
Preferably, the angle of the dynamic sphere formation of the top of the oil suction section and spherical bearing is 1.5 °, the angle energy
Enough satisfactions form suction when the dynamic sphere of the spherical bearing is moved back and forth and suck back the lubricating oil in the middle cavity.
Preferably, the length of the oil suction section is 2mm.
It is adjustable that the sealing device for being used for the support of rotary forging machine spherical bearing static pressure in the present embodiment employs combination
The structure of seal preload, outside is sealed outer ring 3, and sealed outer ring can be that rubber outer ring exists in rubber outer ring, the course of work
The reliable pretightning force of primary seal circle 2 of inner side can be given in certain temperature range, prevents that poor sealing is made during spherical bearing unbalance loading
Into oil leak.Inner side is main sealing ring 2 in combined sealing structure in the present embodiment, and its material is the heat-resisting polytetrafluoroethyl-ne of high abrasion
Alkene composite；The primary seal lip 4 of primary seal circle 2 assume responsibility for main sealing function；Primary seal lip 4 and secondary seal lip 5 it
Between oil suction section 8 utilize the distinctive periodic reverse motion of rotary forging machine, realize in the course of the work will stretch out motion when
The lubricating oil that the dynamic sphere of spherical bearing is brought out in retraction movement, gone again by inspiration, and letting out for lubricating oil is reduced to a certain extent
Leakage, while the presence of middle cavity 7 is also beneficial to the sealing of high pressure conditions.The lower surface of primary seal circle 2 is away from the side of primary seal circle 2
Play a part of preventing that spherical bearing from moving the water adhered on sphere and foul enters bearing to the upper dustproof and waterproof lip 6 of extension.
Embodiment of the present utility model provides for example and description, is not exhaustively or by this practicality
It is new to be limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.
Selection and description embodiment are, in order to which principle of the present utility model and practical application is better described, and to make the common of this area
Technical staff is it will be appreciated that the utility model is so as to design the various embodiments with various modifications suitable for special-purpose.
Claims (7)
1. a kind of sealing device supported for rotary forging machine spherical bearing static pressure, it includes primary seal circle and sealed outer ring,
It is characterized in that：
The sealed outer ring includes upper surface, lower surface, first surface and the second surface with the first inclined plane；
The primary seal circle includes top surface, bottom surface, lateral surface and sealing surface, and the second surface of the sealed outer ring is pressed against master
On the lateral surface of sealing ring；
The sealing surface of the primary seal circle is disposed with integrally formed primary seal lip, oil suction section, middle cavity, secondary seal
Lip and dustproof and waterproof lip, are provided with oil suction section between the primary seal lip and secondary seal lip, the oil suction section along
The primary seal circle is recessed to sealed outer ring direction, is provided between oil suction section and secondary seal lip empty in the middle of described
Chamber, the dustproof and waterproof lip is located at the bottom surface of the primary seal circle and is downwardly projected；And
The top surface of the primary seal circle is less than the upper surface of the sealed outer ring and difference in height is H1.
2. sealing device as claimed in claim 1, it is characterised in that the middle cavity forms irregular flute profile, described
Middle cavity is tilted close to the first side wall of oil suction section along oil suction section towards the primary seal lip, and the middle cavity is close
The second sidewall of secondary seal lip is tilted away from the direction of the primary seal lip of the dustproof and waterproof lip.
3. sealing device as claimed in claim 2, the gradient of the first inclined plane of the sealed outer ring and the primary seal circle
Lateral surface gradient it is identical.
4. sealing device as claimed in claim 3, it is characterised in that the gradient is 5 °.
5. sealing device as claimed in claim 1, it is characterised in that the top surface of the primary seal circle and the sealed outer ring
Upper surface height difference H 1 be 1.2mm.
6. sealing device as claimed in claim 1, it is characterised in that the top of the oil suction section and the dynamic sphere of spherical bearing
The angle of formation is 1.5 °, during the angle disclosure satisfy that formation suction will be described in the dynamic sphere reciprocating motion of spherical bearing
Between lubricating oil in cavity suck back.
7. sealing device as claimed in claim 1, the length of the oil suction section is 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720297107.6U CN206555442U (en) | 2017-03-24 | 2017-03-24 | A kind of sealing device supported for rotary forging machine spherical bearing static pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720297107.6U CN206555442U (en) | 2017-03-24 | 2017-03-24 | A kind of sealing device supported for rotary forging machine spherical bearing static pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206555442U true CN206555442U (en) | 2017-10-13 |
Family
ID=60015924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720297107.6U Active CN206555442U (en) | 2017-03-24 | 2017-03-24 | A kind of sealing device supported for rotary forging machine spherical bearing static pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206555442U (en) |
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2017
- 2017-03-24 CN CN201720297107.6U patent/CN206555442U/en active Active
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