CN102011798B - Spherical elastic bearing and injecting method in forming process of spherical elastic bearing - Google Patents
Spherical elastic bearing and injecting method in forming process of spherical elastic bearing Download PDFInfo
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- CN102011798B CN102011798B CN 201010550506 CN201010550506A CN102011798B CN 102011798 B CN102011798 B CN 102011798B CN 201010550506 CN201010550506 CN 201010550506 CN 201010550506 A CN201010550506 A CN 201010550506A CN 102011798 B CN102011798 B CN 102011798B
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Abstract
The invention belongs to a helicopter rotor spherical elastic bearing technique and relates to the improvement on a helicopter rotor spherical elastic bearing and an injecting method in the forming process of the spherical elastic bearing. In the spherical elastic bearing, a big joint injecting hole [1b] which runs through a big joint [1] along a center line of a concave spherical surface [1a] is formed in the center of the big joint [1]; the diameter of the big joint injecting hole [1b] is not less than that of an injecting hole [3a] of a spherical spacer [3]; and the big joint injecting hole [1b] is coaxially communicated with the injecting hole [3a] of the spherical spacer [3]. In the injecting method, the big joint [1] is arranged above; the outer end opening of the big joint injecting hole [1b] faces upwards; a small joint [2] is arranged below; and rubber is injected from the outer end opening of the big joint injecting hole [1b] by an injecting machine. By the spherical elastic bearing and the injecting method in the forming process of the spherical elastic bearing, the injecting resistance is reduced; the flowability of rubber liquid is improved; deformation or lamination of the spherical spacer is avoided; and the problems of scorch, non-uniform vulcanization and insufficient density of the rubber, bonding failure between the rubber and the metal spacer and the like are solved, so that the performance of the elastic bearing is improved and the fatigue life of the elastic bearing is prolonged.
Description
Technical field
The invention belongs to lifting airscrew sphere resilient bearing technology, relate to improvement injecting glue method in lifting airscrew sphere resilient bearing and the moulding sphere resilient bearing process.
Background technique
The structure of lifting airscrew sphere resilient bearing is referring to Fig. 1; It is made up of big joint 1,2,5～30 sphere partitions 3 of little joint and rubber layer 4; Big joint 1 is recessed concave spherical surface 1a in abutting connection with the surface of sphere partition 3; Little joint 2 is protruding sphere 2a of an epirelief in abutting connection with the surface of sphere partition 3; Sphere partition 3 is sphere sheet metals, and folded successively sieve of all sphere partitions 3 is between big joint 1 and little joint 2, and the concave spherical surface 1a of the concave spherical surface 1a of big joint 1, the sphere of sphere partition 3 and little joint 2 is all concentric.At the center of sphere partition 3 hole for injecting glue 3a is arranged; There is a center line to connect the little joint hole for injecting glue 2b of little joint 2 along concave spherical surface 2a at the center of little joint 2; The diameter of little joint hole for injecting glue 2b is not less than the diameter of sphere partition 3 hole for injecting glue 3a, little joint hole for injecting glue 2b and sphere partition 3 hole for injecting glue 3a coaxial communication.Between big joint 1 and sphere partition 3, between the adjacent sphere partition 3 and between sphere partition 3 and the little joint 2 rubber layer 4 is arranged all, the big joint 1 of rubber layer 4 and both sides or the faying surface of sphere partition 3 or little joint 2 are connected to integral body through sulfuration.The injecting glue method of this sphere resilient bearing is: big joint 1, sphere partition 3 and little joint 2 are combined on the injecting glue mould, big joint 1 below, little joint 2 in the above, the external port of little joint hole for injecting glue 2b is up; Use glue-injection machine that rubber is injected from the external port of little joint hole for injecting glue 2b; Rubber through sphere partition 3 hole for injecting glue 3a along the Clearance Flow between the sphere partition 3, up to rubber be filled between big joint 1 and the sphere partition 3, between the adjacent sphere partition 3 and till the gap between sphere partition 3 and the little joint 2.Distribute because the rubber in the sphere resilient bearing is the spherical shape thin layer, rubber layer thickness is generally between 0.4mm～1.5mm, so rubber resistance in the injecting glue process is very big.In forming process, for fear of problems such as sphere partition generation lamination, distortion, often injecting glue pressure is unsuitable excessive, so just must cause injecting glue speed slow and dwell pressure is too small.The shortcoming of above-mentioned injecting glue method is: in (1) injecting glue process, glue is up along the circular arc gap, and the injecting glue resistance is bigger, and glue is mobile poor.(2) in the injecting glue process, problems such as the sphere partition is prone to deform, lamination.(3) injecting glue speed is slowly too small with dwell pressure, is prone to cause that rubber incipient scorch, the vulcanization of rubber are uneven, variety of problems such as rubber consistency deficiency, rubber and metal spacer adhesive failure.The problems referred to above directly have influence on the performance and the fatigue life of resilient bearing.
Summary of the invention
The objective of the invention is: propose the injecting glue method in a kind of sphere resilient bearing and this sphere resilient bearing forming process, to reduce the injecting glue resistance, it is mobile to improve glue; Avoid the sphere partition to deform or lamination; Prevent to cause problems such as rubber incipient scorch, vulcanization of rubber inequality, rubber consistency deficiency, rubber and metal spacer adhesive failure, thus the performance and the fatigue life of improving resilient bearing.
Technological scheme of the present invention is: a kind of sphere resilient bearing; Form by big joint, little joint, 5～30 sphere partitions and rubber layer; Big joint is a recessed concave spherical surface in abutting connection with the surface of sphere partition; Little joint is the protruding sphere of an epirelief in abutting connection with the surface of sphere partition, and the sphere partition is the sphere sheet metal, and folded successively sieve of all sphere partitions is between big joint and little joint; The concave spherical surface of the concave spherical surface of big joint, the sphere of sphere partition and little joint is all concentric; There is hole for injecting glue at center at the sphere partition, and between big joint and the sphere partition, between the adjacent sphere partition and between sphere partition and the little joint rubber layer is arranged all, the big joint of rubber layer and both sides or the faying surface of sphere partition or little joint are connected to integral body through sulfuration; It is characterized in that; Have a center line along concave spherical surface to connect the big joint hole for injecting glue of big joint at the center of big joint, the diameter of big joint hole for injecting glue is not less than the diameter of sphere partition hole for injecting glue, big joint hole for injecting glue and sphere partition hole for injecting glue coaxial communication.
The injecting glue method of moulding sphere resilient bearing as described above to the injecting glue mould, is characterized in that big joint, sphere partition and little splice combinations: big joint in the above, the external port of big joint hole for injecting glue up, little joint is below; Use glue-injection machine that rubber is injected from the external port of big joint hole for injecting glue; Rubber through sphere partition hole for injecting glue along the Clearance Flow between the sphere partition, up to rubber be filled between big joint and the sphere partition, between the adjacent sphere partition and till the gap between sphere partition and the little joint.
Advantage of the present invention is: reduced the injecting glue resistance, it is mobile to have improved glue; Avoided the sphere partition to deform or lamination; Prevented to cause problems such as rubber incipient scorch, vulcanization of rubber inequality, rubber consistency deficiency, rubber and metal spacer adhesive failure, thus the performance and the fatigue life of having improved resilient bearing.
Description of drawings
Fig. 1 is the structural representation of existing a kind of lifting airscrew sphere resilient bearing.
Fig. 2 is the structural representation of lifting airscrew sphere resilient bearing of the present invention.
Embodiment
Explain further details in the face of the present invention down.Referring to Fig. 2; A kind of sphere resilient bearing; Be made up of big joint 1,2,5～30 sphere partitions 3 of little joint and rubber layer 4, big joint 1 is recessed concave spherical surface 1a in abutting connection with the surface of sphere partition 3, and little joint 2 is protruding sphere 2a of an epirelief in abutting connection with the surface of sphere partition 3; Sphere partition 3 is sphere sheet metals; Folded successively sieve of all sphere partitions 3 is between big joint 1 and little joint 2, and the concave spherical surface 1a of the concave spherical surface 1a of big joint 1, the sphere of sphere partition 3 and little joint 2 is all concentric, at the center of sphere partition 3 hole for injecting glue 3a is arranged; Between big joint 1 and the sphere partition 3, between the adjacent sphere partition 3 and between sphere partition 3 and the little joint 2 rubber layer 4 is arranged all; Rubber layer 4 is connected to integral body with the big joint 1 of both sides or the faying surface of sphere partition 3 or little joint 2 through sulfuration, it is characterized in that, has a center line along concave spherical surface 1a to connect the big joint hole for injecting glue 1b of big joint 1 at the center of big joint 1; The diameter of big joint hole for injecting glue 1b is not less than the diameter of sphere partition 3 hole for injecting glue 3a, big joint hole for injecting glue 1b and sphere partition 3 hole for injecting glue 3a coaxial communication.
The injecting glue method of moulding sphere resilient bearing as described above is combined to big joint 1, sphere partition 3 and little joint 2 on the injecting glue mould, it is characterized in that: big joint 1 in the above, the external port of big joint hole for injecting glue 1b up, little joint 2 is below; Use glue-injection machine that rubber is injected from the external port of big joint hole for injecting glue 1b; Rubber through sphere partition 3 hole for injecting glue 3a along the Clearance Flow between the sphere partition 3, up to rubber be filled between big joint 1 and the sphere partition 3, between the adjacent sphere partition 3 and till the gap between sphere partition 3 and the little joint 2.
Working principle of the present invention is: the injecting glue method can make the sphere partition in the injecting glue process, receive to form " arch bridge " under the effect of rubber injecting glue pressure and arrange in the sphere resilient bearing forming process of the present invention; Pressure receiving is from top to bottom done the time spent; Injecting glue method in existing sphere resilient bearing and the forming process thereof; The sphere partition has improved anti-pressure ability, thereby avoids the sphere partition to deform under pressure or lamination.Simultaneously; Because the injecting glue method is to flow along the sphere direction among the present invention; So can reduce the injecting glue resistance; It is mobile to improve glue, can prevent to cause problems such as rubber incipient scorch, vulcanization of rubber inequality, rubber consistency deficiency, rubber and metal spacer adhesive failure, thus the performance and the fatigue life of having improved resilient bearing.
Claims (2)
1. sphere resilient bearing; Form by big joint [1], little joint [2], 5～30 sphere partitions [3] and rubber layer [4]; Big joint [1] is a recessed concave spherical surface [1a] in abutting connection with the surface of sphere partition [3]; Little joint [2] is the protruding sphere [2a] of an epirelief in abutting connection with the surface of sphere partition [3]; Sphere partition [3] is the sphere sheet metal; Folded successively sieve of all sphere partitions [3] is between big joint [1] and little joint [2], and the concave spherical surface [1a] of the concave spherical surface [1a] of big joint [1], the sphere of sphere partition [3] and little joint [2] has hole for injecting glue [3a] at the center of sphere partition [3] all with one heart; Between big joint [1] and the sphere partition [3], between the adjacent sphere partition [3] and between sphere partition [3] and the little joint [2] rubber layer [4] is arranged all; Rubber layer [4] is connected to integral body with the big joint [1] of both sides or the faying surface of sphere partition [3] or little joint [2] through sulfuration, it is characterized in that, has a center line along concave spherical surface [1a] to connect the big joint hole for injecting glue [1b] of big joint [1] at the center of big joint [1]; The diameter of big joint hole for injecting glue [1b] is not less than the diameter of sphere partition [3] hole for injecting glue [3a], big joint hole for injecting glue [1b] and sphere partition [3] hole for injecting glue [3a] coaxial communication.
2. the moulding injecting glue method of sphere resilient bearing according to claim 1; Big joint [1], sphere partition [3] and little joint [2] are combined on the injecting glue mould; It is characterized in that: big joint [1] in the above, the external port of big joint hole for injecting glue [1b] up, little joint [2] is below; Use glue-injection machine that rubber is injected from the external port of big joint hole for injecting glue [1b]; Rubber through sphere partition [3] hole for injecting glue [3a] along the Clearance Flow between the sphere partition [3], up to rubber be filled between big joint [1] and the sphere partition [3], between the adjacent sphere partition [3] and till the gap between sphere partition [3] and the little joint [2].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010550506 CN102011798B (en) | 2010-11-19 | 2010-11-19 | Spherical elastic bearing and injecting method in forming process of spherical elastic bearing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010550506 CN102011798B (en) | 2010-11-19 | 2010-11-19 | Spherical elastic bearing and injecting method in forming process of spherical elastic bearing |
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| CN102011798A CN102011798A (en) | 2011-04-13 |
| CN102011798B true CN102011798B (en) | 2012-07-18 |
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| CN 201010550506 Active CN102011798B (en) | 2010-11-19 | 2010-11-19 | Spherical elastic bearing and injecting method in forming process of spherical elastic bearing |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104632885A (en) * | 2014-12-03 | 2015-05-20 | 中国航空工业集团公司北京航空材料研究院 | Rubber elastic bearing |
| US10233992B2 (en) * | 2017-07-31 | 2019-03-19 | Aktiebolaget Skf | Elastomeric bearing component with wedge-shaped shims |
| CN110925300B (en) * | 2019-11-29 | 2021-08-27 | 中国北方车辆研究所 | Hydro-pneumatic spring rubber bearing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB2025338B (en) * | 1978-06-02 | 1982-08-04 | Aerospatiale | Helicopterrotor |
| US4859148A (en) * | 1988-02-26 | 1989-08-22 | United Technologies Corporation | Preloaded tunable elastomeric flapping hinge bearing and method of preloading |
| US4886419A (en) * | 1988-09-30 | 1989-12-12 | The Boeing Company | Elastomeric bearing for helicopter rotor having lead-lag damping |
| CN201513473U (en) * | 2009-09-17 | 2010-06-23 | 浙江省三门县世泰实业有限公司 | Elastic bearing |
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Address after: 100095 box 81, Haidian District, Beijing Patentee after: AECC BEIJING INSTITUTE OF AERONAUTICAL MATERIALS Address before: 100095 mailbox 81, Beijing City Patentee before: AVIC BEIJING INSTITUTE OF AERONAUTICAL MATERIALS |
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Address after: No. 5 Yongxiang North Road, Haidian District, Beijing 100094 Patentee after: Beijing Aviation Materials Research Institute Co.,Ltd. Address before: No. 5 Yongxiang North Road, Haidian District, Beijing 100094 Patentee before: Beijing Aeronautical Materials Research Institute Co.,Ltd. |
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