CN201973094U - Self-aligning bearing - Google Patents
Self-aligning bearing Download PDFInfo
- Publication number
- CN201973094U CN201973094U CN2011200684050U CN201120068405U CN201973094U CN 201973094 U CN201973094 U CN 201973094U CN 2011200684050 U CN2011200684050 U CN 2011200684050U CN 201120068405 U CN201120068405 U CN 201120068405U CN 201973094 U CN201973094 U CN 201973094U
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- CN
- China
- Prior art keywords
- expansion mandrel
- elastic sleeve
- holds
- outer ring
- bearing
- 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.)
- Expired - Lifetime
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Abstract
An embodiment of the utility model discloses a self-aligning bearing, which comprises an inner ring, a support frame, an outer ring, a rolling element and an elastic sleeve sleeved on the outer ring. The elastic sleeve is arranged on an existing bearing, so that self-aligning of the bearing can be realized without arranging gaps between the inner ring and the rolling element and between the outer ring and the rolling element, namely special processing for accessories of the bearing is not needed, and the manufacturing difficulty and cost of the self-aligning bearing are reduced. Simultaneously, the self-aligning bearing realizes self-aligning by the aid of telescoping of the elastic sleeve. Owing to the telescoping compensation function of the elastic sleeve, the accessories are combined more stably without gaps and the like, and operating stability of the self-aligning bearing is improved.
Description
Technical field
The utility model relates to the design bearing technical field, more particularly, relates to a kind of expansion mandrel and holds.
Background technique
The center that expansion mandrel holds is adjustable, and it mainly is to be provided with the gap between inside and outside circle and rolling element that existing expansion mandrel holds, and by the variation in gap, realizes that the center of bearing changes.But the bearing of this structure makes bearing the unsettled phenomenon of transmission can occur in the process of work owing to be provided with the gap between inside and outside circle and the rolling element.Simultaneously, this kind aligning structure makes bearing carry out special processing between needing inner ring and outer ring in the process of making, and holds with common expansion mandrel and compares, and manufacture difficulty is bigger, has increased manufacture cost.
In addition, existing expansion mandrel holds and mostly is two row ball bearing greatly, and part is a needle bearing, but because this body structure of bearing more complicated of mentioned kind, this has further increased the manufacture difficulty that expansion mandrel holds.
The model utility content
In view of this, the utility model provides a kind of expansion mandrel to hold, and holds so that a kind of working stability, the simple expansion mandrel of manufacturing to be provided.
In order to achieve the above object, the utility model embodiment provides following technological scheme:
A kind of expansion mandrel holds, and comprises inner ring, supporting frame, outer ring and rolling element, also comprises the elastic sleeve that is set on the described outer ring.
Preferably, during above-mentioned expansion mandrel holds, between described inner ring and outer ring, also be provided with two-sided dust-proof cover.
Preferably, during above-mentioned expansion mandrel held, described elastic sleeve was wrapped on the described outer ring.
Preferably, during above-mentioned expansion mandrel holds, also comprise the rigidity outer ring that is wrapped on the described elastic sleeve.
Preferably, during above-mentioned expansion mandrel held, the outside of described elastic sleeve was provided with some distortion allowance grooves, and described rigidity outer ring presses on the described elastic sleeve.
Preferably, during above-mentioned expansion mandrel held, the width of described inner ring equated with the width of described rigidity outer ring.
Preferably, during above-mentioned expansion mandrel held, described elastic sleeve was the elastic polyurethane cover.
Preferably, during above-mentioned expansion mandrel held, described expansion mandrel held and is single-groove grooved ball bearing.
Can draw from technique scheme, during the expansion mandrel that the utility model embodiment provides holds, the outer ring of bearing is provided with elastic sleeve, in the process of bearing working, realize the aligning of bearing by the resiliently deformable of elastic sleeve, hold with respect to the expansion mandrel that provides in the prior art, the expansion mandrel that the utility model embodiment provides holds and elastic sleeve just is set on the basis of existing bearing can realizes aligning, need not interior, between outer ring and the rolling element gap is set, promptly need not each accessory of bearing is carried out special processing, reduced manufacture difficulty and cost that expansion mandrel holds.Simultaneously, the expansion mandrel that the utility model embodiment provides holds the flexible realization aligning that adopts elastic sleeve, because the flexible compensation effect of elastic sleeve makes each accessory in conjunction with more stable, gap etc. can not occur, improve expansion mandrel and held the stability that work moves.
In addition, what hold employing with respect to existing expansion mandrel is baroque bearings such as two row ball bearing or needle bearing, and the expansion mandrel that the utility model embodiment provides holds and is single-groove grooved ball bearing, has further reduced the manufacture difficulty that expansion mandrel holds.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The sectional view that the expansion mandrel that Fig. 1 provides for the utility model embodiment holds;
The structural representation of elastic sleeve during the expansion mandrel that Fig. 2 provides for the utility model embodiment holds;
The expansion mandrel that Fig. 3 provides for the utility model embodiment holds the schematic representation that detects.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technological scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is a part of embodiment of the present utility model, rather than whole embodiments.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skills are obtained under the prerequisite of not making creative work belongs to the scope of the utility model protection.
The utility model provides a kind of expansion mandrel to hold, and provides a kind of working stability, the simple expansion mandrel of manufacturing to hold.
Please refer to accompanying drawing 1, the structural representation that the expansion mandrel that Fig. 1 provides for the utility model embodiment holds.
The expansion mandrel that the utility model embodiment provides holds, and comprises inner ring 1, supporting frame 3, outer ring 5 and rolling element (as the ball among the figure 2), also comprises the elastic sleeve 6 that is set on the described outer ring 5.
The expansion mandrel that the utility model embodiment provides holds on the outer ring 5 of existing bearing and is provided with elastic sleeve 6, in the process of bearing working, realize the aligning of bearing by the resiliently deformable of elastic sleeve 6, hold with respect to the expansion mandrel that provides in the prior art, the expansion mandrel that the utility model embodiment provides holds and elastic sleeve 6 just is set on the basis of existing bearing can realizes aligning, need not between inside and outside circle and rolling element, the gap to be set, promptly need not each accessory of bearing is carried out special processing, reduced manufacture difficulty and cost that expansion mandrel holds.Simultaneously, the expansion mandrel that the utility model embodiment provides holds the flexible realization aligning that adopts elastic sleeve 6, because the flexible compensation effect of elastic sleeve 6 makes each accessory in conjunction with more stable, gap etc. can not occur, improve expansion mandrel and held the stability that work moves.
In addition, what hold employing with respect to existing expansion mandrel is baroque bearings such as two row ball bearing or needle bearing, and the expansion mandrel that the utility model embodiment provides holds and is single-groove grooved ball bearing, has further reduced the manufacture difficulty that expansion mandrel holds.
During the expansion mandrel that the utility model embodiment provides holds, also be provided with two-sided dust-proof cover 4 between inner ring 1 and outer ring 5, prevent bearing in the process of work, outside dust enters into the inside that expansion mandrel holds, and has prolonged the working life that expansion mandrel holds.
The effect of above-mentioned elastic sleeve 6 is aligning effects, in order to make elastic sleeve 6 more stably be arranged on the outer ring 5, in the production process that expansion mandrel holds, directly elastic sleeve 6 is wrapped on the outer ring 5 and gets final product.
Above-mentioned expansion mandrel holds in the application process that is rotationally connected of back shaft and support tube, inner ring 1 is fixed on the back shaft, elastic sleeve 6 is fixed in the support tube, when the back shaft of assembling or support tube during because of coaxiality error that the neutrality difference produced, elastic sleeve 6 can effectively compensate this kind error, play the effect of aligning, elimination is rotated bad and is reduced moment of rotation.In order further to optimize technique scheme; during the expansion mandrel that provides in the foregoing description holds; elastic sleeve 6 be provided with rigidity outer ring 7; this rigidity outer ring 7 is wrapped in outside the elastic sleeve 6; after elastic sleeve 6 and rigidity outer ring 7 are assembled into one, not only improved the regulating power of elastic sleeve 6, held when in support tube, installing simultaneously at expansion mandrel; the effect of protection elastic sleeve 6 can be played in rigidity outer ring 7, and the adjusting main body of assurance adjustable bearings is not worn and then is destroyed.Above-mentioned rigidity outer ring 7 and elastic sleeve 6 can have multiple Placement, can directly press together.Please refer to shown in the accompanying drawing 2, can also be provided with some distortion allowance grooves on the outside of above-mentioned elastic sleeve 6, rigidity outer ring 7 can directly press on the elastic sleeve 6, the structural a part of elastic sleeve 6 of this kind is embedded in the distortion allowance groove through pressing, in the process of processing, directly rigidity outer ring 7 is directly pressed on the elastic sleeve 6, improved the binding ability of elastic sleeve 6 with rigidity outer ring 7.Preferably, above-mentioned elastic sleeve 6 adopts the elastic polyurethane cover, and polyurethane has better elastic.
In order to prevent that rigidity outer ring 7 and elastic sleeve 6 are subjected to the restriction of the setting sleeve on the axle in the process of installing, inner ring 1 width and the width of rigidity outer ring 7 that above-mentioned expansion mandrel holds equates or is wider than the width of rigidity outer ring 7.
The expansion mandrel that the utility model embodiment provides holds, on the basis of the outer ring 5 of existing bearing, increased elastic sleeve 6, easy to process, simple in structure, low cost of manufacture, usability is reliable and stable and not high to the dimension precision requirement of assembly parts, can carry out large batch of industrialized production, be applicable to the assembling of various component products.Preferably, the expansion mandrel that provides among the utility model embodiment holds and is single-groove grooved ball bearing, for being connected of bad supporting axle of coaxality and support tube, has better coordinative role, can not influence rotating speed or the moment that causes rotating increases.
The expansion mandrel that provides in the foregoing description holds after assembling finishes, can the size of its aligning ability be detected, please refer to accompanying drawing 3, whole expansion mandrel held to be pressed into detect in the ring gauge 9, detect mandrel 8 then and pass the inner ring 1 that expansion mandrel holds, can simulate assembling condition and check whether bearing rotates smooth and easy, measure the size of moment of rotation; And, detect the radial deflection amount by applying a radial force Fr.By above detection means, can determine rigidity outer ring 7 and elastic sleeve 6 rational compact dimensions and hardness number scopes.
To the above-mentioned explanation of the disclosed embodiments, make related domain professional and technical personnel can realize or use the utility model.Multiple modification to these embodiments will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments.Therefore, the utility model will can not be restricted to these embodiments shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (8)
1. an expansion mandrel holds, and comprises inner ring (1), supporting frame (3), outer ring (5) and rolling element, it is characterized in that, also comprises the elastic sleeve (6) that is set on the described outer ring (5).
2. expansion mandrel according to claim 1 holds, and it is characterized in that, also is provided with two-sided dust-proof cover (4) between described inner ring (1) and outer ring (5).
3. hold according to claim 1 or 2 described expansion mandrels, it is characterized in that, described elastic sleeve (6) is wrapped on the described outer ring (5).
4. expansion mandrel according to claim 3 holds, and it is characterized in that, also comprises the rigidity outer ring (7) that is wrapped on the described elastic sleeve (6).
5. expansion mandrel according to claim 4 holds, and it is characterized in that, the outside of described elastic sleeve (6) is provided with some distortion allowance grooves, and described rigidity outer ring (7) presses on the described elastic sleeve (6).
6. expansion mandrel according to claim 5 holds, and it is characterized in that, the width of described inner ring (1) equates with the width of described rigidity outer ring (7).
7. expansion mandrel according to claim 1 holds, and it is characterized in that, described elastic sleeve (6) is the elastic polyurethane cover.
8. expansion mandrel according to claim 1 holds, and it is characterized in that, described expansion mandrel holds and is single-groove grooved ball bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200684050U CN201973094U (en) | 2011-03-15 | 2011-03-15 | Self-aligning bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200684050U CN201973094U (en) | 2011-03-15 | 2011-03-15 | Self-aligning bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201973094U true CN201973094U (en) | 2011-09-14 |
Family
ID=44578197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200684050U Expired - Lifetime CN201973094U (en) | 2011-03-15 | 2011-03-15 | Self-aligning bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201973094U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107542777A (en) * | 2017-10-24 | 2018-01-05 | 无锡民联汽车零部件有限公司 | Possesses the bearing of interior external slideway spacing regulatory function |
-
2011
- 2011-03-15 CN CN2011200684050U patent/CN201973094U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107542777A (en) * | 2017-10-24 | 2018-01-05 | 无锡民联汽车零部件有限公司 | Possesses the bearing of interior external slideway spacing regulatory function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110914 |
|
| CX01 | Expiry of patent term |