CN203548560U - Stern bearing with round through holes in end surface - Google Patents
Stern bearing with round through holes in end surface Download PDFInfo
- Publication number
- CN203548560U CN203548560U CN201320669346.1U CN201320669346U CN203548560U CN 203548560 U CN203548560 U CN 203548560U CN 201320669346 U CN201320669346 U CN 201320669346U CN 203548560 U CN203548560 U CN 203548560U
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- Prior art keywords
- bearing
- rubber
- stern
- stern bearing
- sleeve
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- Expired - Fee Related
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Abstract
The utility model discloses a stern bearing with round through holes in the end surface. The stern bearing comprises a rubber stern bearing body, wherein the outer ring of the rubber stern bearing body is sleeved with a bearing sleeve; the front end surface of the bearing sleeve is provided with a front stopping ring in a fixed-connection manner, and the rear end surface of the bearing sleeve is provided with a rear stopping ring in a fixed-connection manner; the rubber stern bearing body is positioned in the bearing sleeve between the front stopping ring and the rear stopping ring; a plurality of round through holes uniformly distributed in a planar batten end surface of the rubber stern bearing body; the sizes and the radiuses of the through holes are consistent. The stern bearing disclosed by the utility model has the advantages that the round through holes are formed in the batten end surface of the rubber stern bearing body, so that the internal structure of the batten of the rubber bearing is changed, the stress-strain distribution of the batten of the rubber bearing is changed fundamentally, the condition with non-uniform stressing is changed, the phenomenon of stress-strain concentration is reduced and the mechanical property of the rubber stern bearing is improved.
Description
Technical field
The utility model belongs to stern tube bearing design field, particularly a kind of architecture advances with end face manhole stern bearing.
Background technique
Stern bearing is applied comparatively extensive in screw shaft of ship system, and great majority adopt rubber material.Existing rubber stern bearing, rubber part is solid material, abundant heaviness, be difficult to the heat of rubber inside to leave in time, cause internal heat to be assembled, temperature raises, easily cause the ageing failure of rubber material, thereby affect reliability and the working life of rubber stern bearing.Moreover its mechanical property of solid rubber stern bearing is often not good, rubber internal stress Strain Distribution is inhomogeneous, easily form Stress-strain concentration phenomenon, easily produce stress fatigue and destroy, the consequences such as fracture failure even occur, bring hidden danger to the stable operation of stern bearing.
Model utility content
For some practical problems and the technological deficiency of above-mentioned existence, the utility model provides a kind of stern bearing with end face manhole.This device improves the mechanical property of rubber stern bearing, reduces stress fatigue; Improve the cooling effect of stern bearing, reduce the temperature of rubber bush bearing, extend the aging of rubber, improve its working life.
The technical solution adopted in the utility model is as follows:
A kind of stern bearing with end face manhole, comprise rubber stern bearing, outer ring sleeve at rubber stern bearing has a bearing sleeve, the inner ring of rubber stern bearing is evenly provided with a plurality of adhesive tape plates, front-end face at bearing sleeve is provided with a front baffle ring being fixedly connected with it, ear end face is provided with a rear baffle ring being fixedly connected with it, the bearing sleeve of described rubber stern bearing between forward and backward baffle ring is inner, described adhesive tape plate along offering a plurality of manholes on the axial direction of bearing, described clear size of opening radius is consistent.
Between described front baffle ring, rear baffle ring and bearing sleeve, be connected by screw.
Described stern bearing lagging material is alloyed steel 40Cr.
The offset plate bar of described stern bearing offers 5 manholes, is divided into two rows, near the row in axle center, is 2, away from the row in axle center, is 3, and two rows' through holes are in staggered distribution, and through-hole diameter is 5mm, is evenly distributed on the end face of rubber lath.
The beneficial effects of the utility model:
1. on the lath end face of rubber stern bearing, offer manhole, change rubber bush bearing lath internal structure, fundamentally changed rubber bush bearing lath ess-strain and distributed, improved its unbalance stress situation, reduce Stress-strain concentration phenomenon, improved the mechanical property of rubber stern bearing.
Rubber bush bearing lath by solid be improved to hollow, increased heat diffusion area, the flow faster seawater oiling agent of seawater and the cooling rate of rubber bush bearing, improve the cooling effect of stern bearing, make rubber inside temperature balanced, extend the aging and working life of rubber material.
3. in the situation that not affecting its mechanical characteristic, compare with solid rubber bearing lath, hollow rubber bearing lath has been saved certain rubber material, economizes on resources, and reduces costs, simple in structure.
4. end face is provided with the rubber bush bearing lath of manhole, has good noise elimination, the effect of absorbing, is conducive to improve stability and the reliability of stern bearing.
Accompanying drawing explanation
Fig. 1 is model utility structural representation;
Fig. 2 is the left view of Fig. 1;
In figure: 1 front baffle ring, 2 bearing sleeves, 3 rubber stern bearings, 4 rear baffle rings, 5 manholes, 6 rubber laths.
Embodiment
Below in conjunction with above-mentioned drawings and Examples, the utility model is described in further detail.
As shown in Figure 1, a kind of stern bearing with end face manhole, comprises front baffle ring 1, bearing sleeve 2, rubber stern bearing 3, rear baffle ring 4.Front baffle ring 1 is arranged in the front-end face (right-hand member of Fig. 1 is front end) of bearing sleeve 2, and front baffle ring 1 is fixedly connected with bearing sleeve 2 by bolt or screw; Equally, rear baffle ring 4 is positioned at the rear end of bearing sleeve 2, by bolt or screw, is fixedly connected with bearing sleeve 2; Bearing sleeve 2 inside of rubber stern bearing 3 between the baffle ring of front and back.Core of the present utility model and crucial part: on the plane lath end face of rubber stern bearing, offer several manholes 5, described circular hole size radius is consistent, moderate, and is evenly distributed on the end face of rubber lath.
In an embodiment of the present utility model, stern bearing lagging material is alloyed steel 40Cr, and rubber bush bearing material is ebonite, and each stern bearing rubber lath offers 5 manholes, and Circularhole diameter is 5mm, is evenly distributed on the end face of rubber lath.
The following describes structure of the present utility model and the contrast of existing structure test situation.Wherein, table 1 is the concrete dimensional parameters of the utility model stern bearing.
Table 1 stern bearing model basic parameter
Get respectively one not opened round through hole and the flat rubber lath that offers manhole be research object, application finite element method, all applies identical load and constraint, carries out mechanical simulation calculating, obtains corresponding stress envelope.Specifically inquired into and offered the impact on its mechanical property before and after the plane lath of manhole.By offering and offer the stress envelope of manhole plane lath, do not contrast and can find out, the maximum stress value that offers manhole lath is 1.21MPa, and the maximum stress value that does not offer manhole lath is 1.66MPa, offer after circular hole, maximum stress value has reduced by 27.1%, greatly reduces maximum stress value; See stress distribution situation again, offer after circular hole, the stress distribution of plane lath is comparatively balanced, and pace of change is mild, and except maximum stress value, the stress value that the stress value in most of region is not offered circular hole lath corresponding region yet decreases.Review the stress distribution situation of not offering circular hole lath, no matter rubber bush bearing part or steel bushing part, its stress is all comparatively concentrated, and amplitude of variation is larger, easily produces stress fatigue.Analyzing its reason is mainly to offer after circular hole, there is structural variation in rubber bush bearing lath internal structure, fundamentally changed its stress distribution situation, the stress concentration phenomenon of having disperseed lath, optimized the mechanical property of lath, the variation of rubber lath stress distribution simultaneously has also affected the stress distribution situation of steel bushing.
Although above-mentioned, by reference to the accompanying drawings the embodiment of utility model patent is described; but the not restriction to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection domain of the present utility model.
Claims (4)
1. a stern bearing with end face manhole, it is characterized in that: comprise rubber stern bearing, outer ring sleeve at rubber stern bearing has a bearing sleeve, the inner ring of rubber stern bearing is evenly provided with a plurality of adhesive tape plates, front-end face at bearing sleeve is provided with a front baffle ring being fixedly connected with it, ear end face is provided with a rear baffle ring being fixedly connected with it, the bearing sleeve of described rubber stern bearing between forward and backward baffle ring is inner, described adhesive tape plate along offering a plurality of equally distributed manholes on the axial direction of bearing.
2. bearing as claimed in claim 1, is characterized in that: between described front baffle ring, rear baffle ring and bearing sleeve, be connected by screw.
3. bearing as claimed in claim 1, is characterized in that: described stern bearing lagging material is alloyed steel 40Cr.
4. bearing as claimed in claim 1, it is characterized in that: the offset plate bar of described stern bearing offers 5 manholes, be divided into two rows, a row near axle center is 2, a row away from axle center is 3, and two rows' through hole is in staggered distribution, and through-hole diameter is 5mm, is evenly distributed on the end face of rubber lath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320669346.1U CN203548560U (en) | 2013-10-28 | 2013-10-28 | Stern bearing with round through holes in end surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320669346.1U CN203548560U (en) | 2013-10-28 | 2013-10-28 | Stern bearing with round through holes in end surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203548560U true CN203548560U (en) | 2014-04-16 |
Family
ID=50466682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320669346.1U Expired - Fee Related CN203548560U (en) | 2013-10-28 | 2013-10-28 | Stern bearing with round through holes in end surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203548560U (en) |
-
2013
- 2013-10-28 CN CN201320669346.1U patent/CN203548560U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20141028 |
|
| EXPY | Termination of patent right or utility model |