CN206555441U - A kind of combination sealing arrangement supported for rotary forging machine spherical bearing static pressure - Google Patents
A kind of combination sealing arrangement supported for rotary forging machine spherical bearing static pressure Download PDFInfo
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- CN206555441U CN206555441U CN201720296048.0U CN201720296048U CN206555441U CN 206555441 U CN206555441 U CN 206555441U CN 201720296048 U CN201720296048 U CN 201720296048U CN 206555441 U CN206555441 U CN 206555441U
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- lip
- backing plate
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Abstract
The utility model provides the combination sealing arrangement supported for rotary forging machine spherical bearing static pressure, including primary seal circle, O-ring, adjustment backing plate, supported flange and threaded fastener, primary seal circle is pressed against to needing sealed workpiece, O-ring is arranged in the outside of primary seal circle, adjustment backing plate is arranged in outside of the O-ring away from primary seal circle, and primary seal circle, O-ring and adjustment backing plate are located between supported flange and spherical bearing block；The sealing surface of primary seal circle has been sequentially arranged primary seal lip, oil suction section, middle cavity, secondary seal lip and the dust-proof lip that discharges water, and the Part I of the first surface of supported flange is contacted with the bottom surface of primary seal circle；The Part II of supported flange first surface is contacted with the outer surface of primary seal circle；The Part III of supported flange first surface and O-ring and adjustment pad contact；Supported flange second surface is provided with shoulder hole along towards supported flange body, and the aperture of shoulder hole Part I is more than the aperture of shoulder hole Part II.
Description
Technical field
The utility model is related to a kind of machine components, and in particular to one kind is used for the support of rotary forging machine spherical bearing static pressure
Combination sealing arrangement.
Background technology
It is that a monolithic molding for replacing conventional wrought processes can be deformed with continuous and local that swing, which is rolled, therefore can be greatly
Reduce deformation force.If Making mold dimensional accuracy is high, part vertical precision is rolled up to 0.025 μm, surface roughness is reachable
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, such as method
Semiaxis, bevel gear, sprocket wheel, bearing pin etc. after blue disk, wheel blank, milling cutter base, butterfly spring base, automobile.In fixation pressure oil-feed
In the case of, static pressure support is by the damping of regulation flow controller and changes oil film thickness, oil pocket pressure is changed and is balanced
External applied load.Static pressure bearing type yaw includes ball seat, oil pocket, oil-recovery tank etc., and the head of yaw is supported using Static pressure spherical bearing,
Larger axial operating pressure can be born, spherical bearing has good self-centering performance and even wearing, and bearing capacity is high.Just
Sliding cross coupling can be used between interior eccentric bushing and output shaft of gear-box, the radial support of inside and outside eccentric bushing uses needle roller
Bearing, yaw uses self-aligning roller bearing with interior eccentric inner room.Rolling bearing in yaw structure, crosshead shoe structure is used
Lubricating oil that gearbox is flowed down is lubricated.The central axis of interior the eccentric bushing centre of gyration and machine is misaligned, rotates phase
It is continuous to position to change, there is the relative motion of high-frequency unbalance loading and high pressure and fair speed, to the seal request of lower end very
Height, the current country there is no reliable sealing ring, before many to be sealed using conventional YX types sealing or square-section, the course of work
The situation of oil leak occurs in the presence of middle unbalance loading, the undesirable following high-pressure cooling water of sealing effectiveness has the wind entered in oil
Danger.Simultaneously because the motion frequency of spherical bearing is very high, the service life of sealing ring is very short, just needs within 10-15 days under normal circumstances
Change sealing ring.
Utility model content
The technical problems to be solved in the utility model, is to keep device structure and space substantially without situation about changing greatly
Under there is provided a kind of simple and reasonable, sealed reliable, install and change the convenient combined sealing structure of sealing, at primary seal circle
Primary seal circle is can adjust in the case of unbalance loading to needing the compression of seal member, reliable sealing is realized.
The combination sealing arrangement of the present utility model supported for rotary forging machine spherical bearing static pressure, it includes primary seal
Circle, O-ring, adjustment backing plate, supported flange and threaded fastener, the primary seal circle include top surface, bottom surface, sealing surface and
Outer surface, the primary seal circle is pressed against to sealed workpiece is needed, and the O-ring is arranged in the outside of the primary seal circle, and
The O-ring is in contact with the outer surface of the primary seal circle, and it is close away from the master that the adjustment backing plate is arranged in the O-ring
The outside of seal, the primary seal circle, the O-ring and the adjustment backing plate be located at the supported flange and spherical bearing block it
Between.
The sealing surface of the primary seal circle has been sequentially arranged primary seal lip, oil suction section, middle cavity, secondary seal lip and prevented
Dirt discharges water lip, wherein the oil suction section between the primary seal lip and secondary seal lip be configured to rotary forging machine is periodically past
The lubricating oil that the dynamic sphere of spherical bearing is brought out when stretching out motion in multiple motion process in retraction movement, go again by inspiration, subtracts
The leakage of few lubricating oil；Oil suction section between the primary seal lip and the secondary seal lip is along the primary seal
Enclose and be provided with the centre between oil suction section and secondary seal lip into the recessed primary seal circle body in direction of the O-ring
Cavity, the middle cavity forms irregular flute profile and the middle cavity is described close to the first side wall edge of oil suction section
Oil suction section is tilted towards the primary seal lip, middle cavity close to secondary seal lip second sidewall away from described dust-proof anti-
The direction of the primary seal lip of water lip is tilted；The dustproof and waterproof lip is located at the bottom surface of primary seal circle and is downwardly projected, and institute
The lowermost portion for stating dustproof and waterproof lip is less than the bottom surface of primary seal circle；
The supported flange has first surface, second surface and the 3rd surface, wherein the first table of the supported flange
The bottom surface of the Part I in face and the primary seal circle contacts with each other；The Part II of the supported flange first surface with it is described
The outer surface of primary seal circle contacts with each other；The Part III of the supported flange first surface and the O-ring and the adjustment
Backing plate contacts with each other；The supported flange body is provided with shoulder hole with the second surface of the supported flange, it is described
The aperture of the Part I of shoulder hole is more than the aperture of the shoulder hole Part II, and the Part I configuration of the shoulder hole is used
In accommodating threaded fastener, the Part II of the shoulder hole is configured to accommodate threaded fastener；
The adjustment backing plate is provided with the through hole passed through for threaded fastener.
Preferably, the primary seal circle is rubber seal.
Preferably, the O-ring is rubber seal.
Preferably, the adjustment backing plate is elastomeric element.
Preferably, the supported flange has gradient close to the 3rd surface of the sealed workpiece side of needs.Preferably, institute
State adjustment backing plate on set be used for accommodate the threaded connector through through hole and the threaded fastener used
Cross cooperation.
Preferably, the threaded fastener has first paragraph, second segment and thread segment, the spiral shell coordinated with the supported flange
The diameter of the first paragraph of line fastener is more than the diameter of the threaded fastener second segment coordinated with adjustment backing plate, and the screw thread is tight
Firmware first paragraph and the supported flange are coordinated using gap, so as to the bolt deformation in the case of high speed unbalance loading in the case of to pressing
Tight flange can play a part of support to bolt.
Compared with prior art, the beneficial effects of the utility model are：
Combined sealing structure of the present utility model, except the primary seal circle is with external supported flange and spherical bearing body
Between simultaneously add the adjustment backing plate that O-ring seal and elastomeric material are made, the supported flange passes through threaded fastener, example
Such as, bolt, the combination sealing arrangement is pushed down, and by the pretightning force of adjustment bolt, i.e., is exchanged by adjusting threaded fastener
The thrust of whole backing plate, makes adjustment backing plate produce different degrees of deformation to will pass through O-ring and the adjustment pad contact
Part, which applies lateral extruding force to O-ring and then applies lateral compression power to primary seal circle, increases the sealing of primary seal circle
Can, while supported flange also increases the thrust of O-ring and primary seal circle, O-ring and primary seal circle can also produce change in itself
Shape improves the sealing property of sealing device, i.e., by adjusting the elastic deformation of backing plate and O-ring, and primary seal circle is produced laterally
Pressure, increases the sealability of primary seal.Therefore, can appropriate adjusting method when primary seal because when abrasion or deformable seal are bad
The pretightning force of blue bolt is compressed to primary seal, realizes a range of compensation, so as to substantially increase primary seal circle
Life-span, it is ensured that sealedly reliable during adjustment.Also ensure that primary seal circle is there can be enough changes being influenceed by unbalance loading simultaneously
Shape ensure that sealing.
Brief description of the drawings
Below in conjunction with accompanying drawing, the utility model is described in detail：
Fig. 1 is the combination sealing arrangement supported according to the static pressure of the present utility model for rotary forging machine spherical bearing
The sectional view of structural representation.
Fig. 2 is the combination sealing arrangement supported according to the static pressure of the present utility model for rotary forging machine spherical bearing
The structural representation sectional view of primary seal circle.
Fig. 3 is the combination sealing arrangement supported according to the static pressure of the present utility model for rotary forging machine spherical bearing
The structural representation sectional view of O-ring.
Fig. 4 is the pressure according to the combination sealing arrangement of the present utility model supported for rotary forging machine spherical bearing static pressure
The sectional view of the structural representation of tight flange.
Fig. 5 is the spiral shell according to the combination sealing arrangement of the present utility model supported for rotary forging machine spherical bearing static pressure
The sectional view of the structural representation of line fastener.
Fig. 6 is the tune according to the combination sealing arrangement of the present utility model supported for rotary forging machine spherical bearing static pressure
The sectional view of the structural representation of whole pad.
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 shown in Fig. 1 to Fig. 6, the combination for being used for the support of rotary forging machine spherical bearing static pressure in the utility model is close
Seal apparatus 1, it includes primary seal circle 2, O-ring 3, adjustment backing plate 4, supported flange 5 and threaded connector 6, and the screw thread connects
Fitting, for example, being bolt.Primary seal circle 2 includes top surface 21, bottom surface 22, sealing surface 23 and outer surface 24, and primary seal circle 2 is configured
For being pressed against to needing sealed workpiece, O-ring 3 is arranged in the outside of the primary seal circle 2, and with the appearance of primary seal circle 2
Face 24 is in contact, and adjustment backing plate 4 is arranged in outside of the O-ring 3 away from primary seal circle 2, the sealing surface 23 of primary seal circle 2 cloth successively
Primary seal lip 7, oil suction section 8, middle cavity 9, secondary seal lip 10 and the dust-proof lip 11 that discharges water are equipped with, positioned at primary seal lip 7 and two
Oil suction section 8 between secondary sealing lip 10 is along in the recessed primary seal circle body in direction of primary seal circle 2 towards O-ring 3.Oil suction section 8
It is arranged between primary seal lip 7 and secondary seal lip 10, it is configured to during rotary forging machine periodic reverse motion
The lubricating oil that the dynamic sphere of spherical bearing is brought out when stretching out motion in retraction movement, go to reduce lubricating oil again by inspiration
Leakage.Middle cavity 9 is provided between oil suction section 8 and secondary seal lip 10, middle cavity 9 forms irregular flute profile,
And middle cavity 9 is tilted close to the first side wall of oil suction section 8 along oil suction section towards the primary seal lip 7, middle cavity 9 is leaned on
The second sidewall of nearly secondary seal lip 10 is tilted away from the direction of the primary seal lip 7 of dustproof and waterproof lip 11.Dustproof and waterproof lip
11 are located at the bottom surface of primary seal circle 2 and are downwardly projected, in order to strengthen the protection effect of dustproof and waterproof lip 11, it is preferable that dust-proof anti-
The lowermost portion of water lip 11 is less than the bottom surface 22 of primary seal circle 2.Primary seal circle 2, O-ring 3 and adjustment backing plate 4 are located at supported flange
Between 5 and spherical bearing block 12, supported flange 5 has first surface 51 and second surface 52, the first surface 51 of supported flange
The bottom surface 22 of Part I 511 and primary seal circle 2 contact with each other, the Part II 512 of the first surface 51 of supported flange 5 with it is main
The outer surface 24 of sealing ring 2 contacts with each other, Part III 513 and the O-ring 3 and adjustment backing plate 4 of the first surface 51 of supported flange 5
Contact with each other, the second surface 52 of supported flange 5 is disposed with shoulder hole 53, shoulder hole 53 towards the body of supported flange 5
The aperture D1 of Part I 531 be more than the aperture D2 of the Part II 532 of shoulder hole 53, the Part I 531 of shoulder hole 53 matches somebody with somebody
Put for accommodating threaded fastener 6, for example, the head of bolt, the Part II 532 of shoulder hole 53 is configured to accommodate screw thread tight
Firmware 6.Preferably, the 3rd surface 54 of the sealed workpiece side of the close needs of supported flange 5 has certain gradient.Adjustment
Backing plate 4, which is provided with, to be used to accommodate the through hole 41 that the threaded fastener is passed through, a diameter of D3 of the through hole 41, the through hole 41
Interference fits are used between the second segment 62 of the threaded fastener 6.
Threaded fastener 6 has first paragraph 61, second segment 62 and thread segment 63, the screw threads for fastening coordinated with supported flange 5
The diameter D5 of the first paragraph 61 of part 6 is more than the diameter D4 of the second segment 62 of threaded fastener 6 coordinated with adjustment backing plate 4, and screw thread is tight
The first paragraph 61 of firmware 6 is coordinated with supported flange 5 using gap, so as to the bolt deformation in the case of high speed unbalance loading in the case of to pressure
Tight flange can play a part of support to bolt.
Supported flange 5, for example, bolt, combination sealing arrangement is pushed down, is passed through by threaded fastener 6 in the course of work
Adjust threaded fastener 6, for example, bolt, the thrust to adjusting backing plate, make adjustment backing plate 4 produce different degrees of deformation with
The deformation that will pass through adjustment backing plate 4 applies lateral extruding to O-ring 3 to O-ring 3 with the part that the adjustment backing plate 4 is contacted
Power and then the sealing property for applying lateral compression power increase primary seal circle 2 to primary seal circle 2, while supported flange 5 is to O-ring 3
Also increase with the thrust of primary seal circle 2, O-ring 3 and primary seal circle 2 itself can also be deformed improving the sealing of sealing device
Performance, i.e., by adjusting the elastic deformation of backing plate 4 and O-ring 3, lateral pressure is produced to primary seal circle 2, increase primary seal
Sealability.When primary seal because when abrasion or deformable seal are bad, can appropriate adjustment bolt pretightning force, pass through O-ring 3
Primary seal is compressed, realizes a range of compensation to substantially increase the life-span of primary seal circle.
Preferably, O-ring 3 is preferably rubber outer ring, to be sealed with certain tension force and elastic force.
Preferably, primary seal circle 2 is rubber seal, to be sealed with certain tension force and elastic force.
Preferably, adjustment backing plate 4 is elastomeric element, pre- to work as threaded fastener with certain tension force and elastic force
Clamp force can produce enough deformations when increasing.
Combination sealing arrangement of the present utility model, is applied equally to other mechanically similar situations, can be effectively
Avoid overhauling in the conventional hermetic circle course of work and leak not in time, greatly improve sealing property degree.
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. it is a kind of for rotary forging machine spherical bearing static pressure support combination sealing arrangement, it include primary seal circle, O-ring,
Adjust backing plate, supported flange and threaded fastener, it is characterised in that
The primary seal circle includes top surface, bottom surface, sealing surface and outer surface, and the primary seal circle is pressed against to needing sealed work
Part, the O-ring is arranged in the outside of the primary seal circle, and the O-ring is in contact with the outer surface of the primary seal circle,
The adjustment backing plate is arranged in outside of the O-ring away from the primary seal circle, the primary seal circle, the O-ring and institute
Adjustment backing plate is stated to be located between the supported flange and spherical bearing block；
The sealing surface of the primary seal circle has been sequentially arranged primary seal lip, oil suction section, middle cavity, secondary seal lip and dust-proof anti-
Water lip, wherein
Oil suction section between the primary seal lip and secondary seal lip is configured to rotary forging machine periodic reverse motion mistake
The lubricating oil that the sphere of spherical bearing is brought out when motion is stretched out in journey in retraction movement, go again by inspiration, reduces lubricating oil
Leakage；
Oil suction section between the primary seal lip and the secondary seal lip is along the primary seal circle to described O-shaped
Be provided with the middle cavity in the recessed primary seal circle body in direction of circle between oil suction section and secondary seal lip, it is described in
Between cavity form irregular flute profile, the middle cavity close to oil suction section the first side wall along oil suction section towards institute
State primary seal lip inclination, middle cavity close to secondary seal lip second sidewall away from the dustproof and waterproof lip the master
The direction of sealing lip is tilted；
The dustproof and waterproof lip is located at the bottom surface of primary seal circle and is downwardly projected, and the lowermost portion of the dustproof and waterproof lip is less than
The bottom surface of primary seal circle；
The supported flange has first surface, second surface and the 3rd surface, wherein
The bottom surface of the Part I of the first surface of the supported flange and the primary seal circle contacts with each other；
The outer surface of the Part II of the supported flange first surface and the primary seal circle contacts with each other；
The Part III of the supported flange first surface contacts with each other with the O-ring and the adjustment backing plate；With the pressure
The second surface of tight flange is provided with shoulder hole, the aperture of the Part I of the shoulder hole towards the supported flange body
More than the aperture of the shoulder hole Part II, the Part I of the shoulder hole is configured to accommodate threaded fastener, described
The Part II of shoulder hole is configured to accommodate threaded fastener；And
The adjustment backing plate is provided with the through hole passed through for threaded fastener.
2. combination sealing arrangement as claimed in claim 1, it is characterised in that the primary seal circle is rubber seal.
3. combination sealing arrangement as claimed in claim 1, it is characterised in that the O-ring is rubber seal.
4. combination sealing arrangement as claimed in claim 1, it is characterised in that the adjustment backing plate is elastomeric element.
5. combination sealing arrangement as claimed in claim 1, it is characterised in that the supported flange is close to the sealed workpiece of needs
3rd surface of side has gradient.
6. combination sealing arrangement as claimed in claim 1, it is characterised in that being used for of being set on the adjustment backing plate accommodates institute
State threaded fastener through through hole and the threaded fastener use interference fits.
7. combination sealing arrangement as claimed in claim 1, it is characterised in that the threaded fastener has and the compression method
Second segment and thread segment that the first paragraph and the adjustment backing plate that orchid coordinates coordinate, are more than and institute with the diameter of the first paragraph
The diameter of second segment is stated, the threaded fastener first paragraph is coordinated with both supported flanges using gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720296048.0U CN206555441U (en) | 2017-03-24 | 2017-03-24 | A kind of combination sealing arrangement supported for rotary forging machine spherical bearing static pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720296048.0U CN206555441U (en) | 2017-03-24 | 2017-03-24 | A kind of combination sealing arrangement supported for rotary forging machine spherical bearing static pressure |
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| Publication Number | Publication Date |
|---|---|
| CN206555441U true CN206555441U (en) | 2017-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720296048.0U Active CN206555441U (en) | 2017-03-24 | 2017-03-24 | A kind of combination sealing arrangement supported for rotary forging machine spherical bearing static pressure |
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| CN (1) | CN206555441U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112963541A (en) * | 2021-02-07 | 2021-06-15 | 青岛众力诚达智能科技有限公司 | Rotary sealing structure with thread pair |
| CN114810901A (en) * | 2022-04-15 | 2022-07-29 | 中国人民解放军海军工程大学 | Novel air bag vibration isolator |
-
2017
- 2017-03-24 CN CN201720296048.0U patent/CN206555441U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112963541A (en) * | 2021-02-07 | 2021-06-15 | 青岛众力诚达智能科技有限公司 | Rotary sealing structure with thread pair |
| CN114810901A (en) * | 2022-04-15 | 2022-07-29 | 中国人民解放军海军工程大学 | Novel air bag vibration isolator |
| CN114810901B (en) * | 2022-04-15 | 2024-02-20 | 中国人民解放军海军工程大学 | Novel air bag vibration isolator |
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