CN204357959U - A kind of bearing spider - Google Patents
A kind of bearing spider Download PDFInfo
- Publication number
- CN204357959U CN204357959U CN201520066830.4U CN201520066830U CN204357959U CN 204357959 U CN204357959 U CN 204357959U CN 201520066830 U CN201520066830 U CN 201520066830U CN 204357959 U CN204357959 U CN 204357959U
- Authority
- CN
- China
- Prior art keywords
- bearing spider
- straightway
- key
- bearer ring
- fatigue resistance
- 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.)
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- Rolling Contact Bearings (AREA)
Abstract
The utility model relates to a kind of bearing spider of idle call, through research to bearing spider size, discloses bearing spider size and engages key and to fracture rate and engage key and shake the relation of fatigue resistance, when chimeric coefficient
time in 0.57 ~ 0.80 scope, the engaging key of bearing spider guarantee its or not does not shake fatigue resistance within the acceptable range yet while frangibility; When chimeric coefficient
time in 0.73 ~ 0.75 scope, the engaging key of bearing spider not frangibility and the fatigue resistance that shakes is low, ensure that the stability that air-conditioning uses.
Description
Technical field
The utility model belongs to mechanical field, the bearing spider of particularly a kind of idle call.
Background technique
Air-conditioning is a kind of equipment of conventional adjustment room temperature, the indoor set of air-conditioning is blown by blower fan, blower fan is fixed on air-conditioning inside by bearing spider, the performance of bearing spider determines whether blower fan can stably blow, bearing spider of the prior art is in order to easy installation and removal, often through bearing spider engaging the elastic strain of key to install bearing spider, but the intensity that prior art often only pays close attention to engaging key prevents from it from fractureing or studies emphatically its profile reducing its rolling fatigue resistance, being broken property of research does not combine with rolling fatigue resistance further, the final overall performance affecting air-conditioning.
Summary of the invention
The purpose of this utility model is to solve the problem in background technique.The purpose of this utility model is in the problem that fractureing property engage key can not be combined with rolling fatigue resistance with the research to bearing spider solved in background technique.
The utility model provides a kind of bearing spider of idle call, comprise bearer ring, be arranged on left link on the left of bearer ring, be arranged on the right link on the right side of bearer ring and be arranged on the engagement portion of bearer ring bottom, described engagement portion comprises engaging key and transition slot, described engaging key is made up of left straightway, right straightway and the dop be arranged between left straightway and right straightway, the size of described engaging key and transition slot and chimeric coefficient
there is following relation:
, wherein a is the length of right straightway; B is the width of transition slot; A is the angle between left straightway and right straightway;
, as preferably
.
The length range of the right straightway of bearing spider of idle call described in the utility model is: 19mm ~ 20mm; The width range of transition slot is: 3.45mm ~ 3.55mm; The scope of the angle between left straightway and right straightway is: 6.2 ° ~ 7.2 °.
The bearing spider of idle call described in the utility model also comprises the tooth engaged be arranged in bearer ring.Described tooth engaged has 4, is uniformly distributed in bearer ring.
The beneficial effect of the bearing spider of idle call described in the utility model is: through research to bearing spider size, discloses bearing spider size and engage key and to fracture the relation of rate and rolling fatigue resistance, when chimeric coefficient
time in 0.57 ~ 0.80 scope, the engaging key of bearing spider guarantee its or not does not shake fatigue resistance within the acceptable range yet while frangibility; When chimeric coefficient
time in 0.73 ~ 0.75 scope, the engaging key of bearing spider not frangibility and the fatigue resistance that shakes is low, ensure that the stability that air-conditioning uses.
Accompanying drawing explanation
Fig. 1 bearing spider plan view;
C portion partial enlarged drawing in Fig. 2 bearing spider plan view.
Embodiment
Figure 1 shows that bearing spider plan view, Figure 2 shows that C portion partial enlarged drawing in bearing spider plan view.
Embodiment 1 is illustrated below in conjunction with Fig. 1 and Fig. 2, the present embodiment is the bearing spider of an idle call, comprise bearer ring 100, be arranged on left link 300 on the left of bearer ring 100, be arranged on the right link 200 on the right side of bearer ring 100 and be arranged on the engagement portion 400 of bearer ring 100 bottom, described engagement portion 400 comprises engaging key 410 and transition slot 420, and described engaging key 410 is made up of left straightway 411, right straightway 412 and the dop 413 be arranged between left straightway 411 and right straightway 412.
The bearing spider of the idle call described in the present embodiment, the length range of its right straightway 412 is: 19mm ~ 20mm; The width range of transition slot 420 is: 3.45mm ~ 3.55mm; The scope of the angle between left straightway 411 and right straightway 412 is: 6.2 ° ~ 7.2 °.
The bearing spider of the idle call described in the present embodiment, also comprises the tooth engaged 500 be arranged in bearer ring 100, and described tooth engaged 500 has 4, is uniformly distributed in bearer ring 100.
Bearing spider is fixed on the bearing base in air-conditioning by engaging key 410, inventor finds bearing spider research further, engaging key left straightway 411 with included angle A between right straightway 412, engage key right straightway 412 length a, the width b of transition slot 420 affects simultaneously and engage key 410 probability fractureed and the rolling fatigue resistance engaging key 410, proposition is fitted together to coefficient
:
The particular location of visible each dimension mark in fig. 2, wherein a is engaging key right straightway 412 length; B is the width of transition slot 420; A is angle between the left straightway of engaging key 411 and right straightway 412.
The method of measurement of the right length of straigh line of described engaging key, transition slot width and the angle between the engaging left straightway of key and right straightway is: the edge of engagement portion is rounding off at each turning, the each straightway forming edge, engagement portion is extended to two adjacent straightways intersect, the distance measured between adjacent two intersection points obtains the length of the straightway between two intersection points; Extending left straightway with right straightway until the two is crossing, take intersection point as summit, and left straightway and right straightway are limit, measures angle therebetween.
Provide 14 groups of bearing spider sized datas and chimeric coefficient below
relation contrast, each embodiment's data are see table 1.
Table 1
In above-mentioned 14 groups of embodiments, the size of bearing spider progressively changes, and the rate of fractureing is divided into 1 to 5 grade, progression fracture more greatly rate larger namely engage key more easily fracture; The fatigue resistance that shakes is divided into 1 to 5 grade, and progression larger rolling fatigue resistance is higher.
The method of measurement of the rate that wherein fractures is, manufacture the bearing spider of the different size of experiment regulation sample size, by size, bearing spider is divided into groups, plug test is carried out to the bearing spider of a certain group, be inserted on bearing base by bearing spider, again bearing spider is pulled up from bearing base, be recorded in plug operation and engage the quantity of the bearing spider that key fractures, by the quantity engaging the bearing spider that key fractures in plug operation with participate in the quantity plugging the bearing spider tested and carry out contrast and draw the rate of fractureing;
The method of measurement of fatigue resistance of wherein shaking is, manufacture the bearing spider of a large amount of different size, by size, bearing spider is divided into groups, rolling dynamic test is carried out to the bearing spider of a certain group, be inserted on bearing base by bearing spider, air-conditioning is run under the power of experiment regulation, measures the shaking volume of engaging key.
Found, when chimeric coefficient by the contrast of 14 groups of embodiments
during increase, the rate that fractures of bearing spider declines, the fatigue resistance that shakes raises; When chimeric coefficient
during reduction, the rate that fractures of bearing spider increases, the fatigue resistance that shakes reduces.Think
time, the rate that fractures and rolling fatigue resistance are all within the acceptable range; Preferably
, the rate that fractures is comprehensively optimum with rolling fatigue resistance.
Claims (5)
1. the bearing spider of an idle call, comprise bearer ring (100), be arranged on the left link (300) in bearer ring (100) left side, be arranged on the right link (200) on bearer ring (100) right side and be arranged on the engagement portion (400) of bearer ring (100) bottom, it is characterized in that, described engagement portion (400) comprises engaging key (410) and transition slot (420), described engaging key (410) is by left straightway (411), right straightway (412) and the dop (413) be arranged between left straightway (411) and right straightway (412) form, the size of described engaging key (410) and transition slot (420) and chimeric coefficient
there is following relation:
, wherein a is the length of right straightway (412); B is the width of transition slot (420); A is the angle between left straightway (411) and right straightway (412);
.
2. the bearing spider of idle call as claimed in claim 1, is characterized in that,
.
3. the bearing spider of idle call as claimed in claim 2, it is characterized in that, the length range of right straightway (412) is: 19mm ~ 20mm; The width range of transition slot (420) is: 3.45mm ~ 3.55mm; The scope of the angle between left straightway (411) and right straightway (412) is: 6.2 ° ~ 7.2 °.
4. the bearing spider of the idle call as described in any one of claims 1 to 3, is characterized in that, is arranged on the tooth engaged (500) in bearer ring (100).
5. the bearing spider of idle call as claimed in claim 4, it is characterized in that, described tooth engaged (500) has 4, is uniformly distributed in bearer ring (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520066830.4U CN204357959U (en) | 2015-01-30 | 2015-01-30 | A kind of bearing spider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520066830.4U CN204357959U (en) | 2015-01-30 | 2015-01-30 | A kind of bearing spider |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204357959U true CN204357959U (en) | 2015-05-27 |
Family
ID=53259431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520066830.4U Ceased CN204357959U (en) | 2015-01-30 | 2015-01-30 | A kind of bearing spider |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204357959U (en) |
-
2015
- 2015-01-30 CN CN201520066830.4U patent/CN204357959U/en not_active Ceased
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20181211 Decision number of declaring invalidation: 38214 Granted publication date: 20150527 |
|
| IW01 | Full invalidation of patent right |