CN204239486U - Bearing bearing sleeve and speed reducer - Google Patents
Bearing bearing sleeve and speed reducer Download PDFInfo
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- CN204239486U CN204239486U CN201420400372.9U CN201420400372U CN204239486U CN 204239486 U CN204239486 U CN 204239486U CN 201420400372 U CN201420400372 U CN 201420400372U CN 204239486 U CN204239486 U CN 204239486U
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- bearing
- hole
- speed reducer
- blowdown
- cylindrical shell
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Abstract
The utility model discloses a kind of bearing bearing sleeve and speed reducer, relate to technical field of engineering machinery.Solve prior art exist gear and bearing working life shorter technical problem.This bearing bearing sleeve comprises cylindrical shell and is arranged on the outer bearing limit dais of cylinder inboard wall, inner bearing limit dais, and the position of outer bearing limit dais on cylinder inboard wall is relative to the inside of inner bearing limit dais further from speed reducer; Cylindrical shell is provided with at least one blowdown through hole, blowdown through hole runs through the barrel of cylindrical shell.This speed reducer comprises the power input mechanism of speed reducer, and the power input mechanism of speed reducer comprises the bearing bearing sleeve that bevel gear, rotating shaft, outer bearing, inner bearing, spline housing and the utility model provide.The utility model is for improving the working life of bearing and gear.
Description
Technical field
The utility model relates to technical field of engineering machinery, particularly relates to a kind of bearing bearing sleeve and arranges the speed reducer of this bearing bearing sleeve.
Background technique
Speed reducer is very important a kind of speed reducer in engineering machinery.
As shown in Figure 1, in existing speed reducer when input, export be arranged vertically time many uses bevel gear drive, wherein: bevel pinion 81 is embedded in tapered roller bearing in bearing sleeve 83 and large bearing 82 and little bearing 84 and carries out pairing owing to being subject to larger axial force and the many uses of radial force two and support.
Speed reducer needs to change gear oil in use for some time, when changing gear oil needs the gear oil in former speed reducer to put totally, with washing agent, speed reducer internal washing is clean, then adds new gear oil.When speed reducer inside exists too much impurity, the working life of gear and bearing can be reduced.
In prior art, the left side of little bearing 84 is equivalent to an enclosed space as shown in Figure 1, and the impurity on the left of little bearing 84 can produce adhesion, accumulation and precipitation, effectively cannot circulate, and be difficult to thoroughly clean.
The applicant finds: prior art at least exists following technical problem as shown in Figure 1:
In prior art, in speed reducer working procedure, impurity can produce in the a-quadrant of speed reducer input end and adhere to, accumulates and precipitate, the impurity density of this position is larger, the lubrication of left end roller bearing can be affected, accelerate the damage of bearing, simultaneously, when thoroughly cleaning speed reducer inside and change gear oil, in the a-quadrant of speed reducer, the gear oil lower than reference line M-N easily produces and adheres to and precipitation, cannot thoroughly discharge and clean, cause the pollution to new gear oil, reduce the working life of gear and bearing.
Model utility content
One of them object of the present utility model proposes a kind of bearing bearing sleeve and arranges the speed reducer of this bearing bearing sleeve, solve prior art exist gear and bearing working life shorter technical problem.
This bearing bearing sleeve, comprise cylindrical shell and be arranged on outer bearing limit dais, the inner bearing limit dais of described cylinder inboard wall, wherein: the position of described outer bearing limit dais on described cylinder inboard wall is relative to the inside of described inner bearing limit dais further from speed reducer; Described cylindrical shell is provided with at least one blowdown through hole, described blowdown through hole runs through the barrel of described cylindrical shell; The dirt inlet of described blowdown through hole is arranged on the region away from the inside of described speed reducer around described outer bearing limit dais on described cylinder inboard wall, and the spacing between the dirt inlet of described blowdown through hole and the center line of described cylindrical shell is greater than the spacing between described outer bearing limit dais and the center line of described cylindrical shell; On the end face of the sewage outfalls setting of described blowdown through hole wherein one end on the outer wall of described cylindrical shell or on the axial direction of described cylindrical shell.
Preferably, there is angle between the center line of described blowdown through hole and the center line of described cylindrical shell.
Preferably, the sewage draining exit of described blowdown through hole is towards the inside of described speed reducer, and the position height of the sewage draining exit of described blowdown through hole is lower than the dirt inlet of described blowdown through hole.
This speed reducer, comprises the power input mechanism of speed reducer, and the power input mechanism of described speed reducer comprises the bearing bearing sleeve that bevel gear, rotating shaft, outer bearing, inner bearing, spline housing and the utility model provide, wherein:
One end of described bevel gear is fixedly connected with described rotating shaft or both are integral type structure, and described spline housing and described rotating shaft form spline joint;
The inner ring of described outer bearing is set on the outer wall of described spline housing, and the inner ring of described inner bearing is set on the outer wall of described rotating shaft;
The described barrel jacket of described bearing bearing sleeve is located at outside described outer bearing and described inner bearing, and the outer ring of described outer bearing limit dais and described outer bearing abuts against, and the outer ring of described inner bearing limit dais and described inner bearing abuts against;
Gap between described spline housing, described outer bearing and described cylindrical shell three is connected with the dirt inlet of described blowdown through hole.
Based on technique scheme, the utility model embodiment at least can produce following technique effect:
In the bearing bearing sleeve that the utility model embodiment provides, cylindrical shell is provided with at least one blowdown through hole, blowdown through hole can by spline housing, the gear wet goods pollutant of the gap location accumulation between outer bearing and cylindrical shell three is discharged outside cylindrical shell in time, not only outer bearing can be promoted, effective circulation of gear oil between inner bearing two side areas, but also ensure that when cleaning speed reducer and changing gear oil, can thoroughly clean, prevent the impurity of residual bearing neighboring area to the new gear oil produced pollution injected, so reduce the impurity concentration of bearing neighboring area, ensure that the normal work and use life-span of bearing, and then solve prior art exist gear and bearing working life shorter technical problem.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, and form a application's part, schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 be the power input mechanism of speed reducer in prior art chief component between the schematic diagram of annexation;
The schematic diagram of annexation between the chief component of the power input mechanism of the speed reducer that Fig. 2 provides for the utility model embodiment;
Reference character: 1, cylindrical shell; 11, outer bearing limit dais; 12, inner bearing limit dais; 13, blowdown through hole; 131, inner via hole; 132, accessibke porosity; 14, locating flange; 15, concave station; 2, bevel gear; 3, rotating shaft; 4, outer bearing; 5, inner bearing; 6, spline housing; 7, oil seal structure; 81, bevel pinion; 82, large bearing; 83, bearing sleeve; 84, little bearing.
Embodiment
Content of the present utility model and the distinctive points between the utility model and prior art can be understood below with reference to accompanying drawing Fig. 1 ~ Fig. 2 and word content.Hereafter by accompanying drawing and the mode enumerating embodiment more of the present utility model, the technical solution of the utility model (comprising optimal technical scheme) is described in further detail.It should be noted that: any technical characteristics in the present embodiment, any technological scheme is all one or more in the technical characteristics of plurality of optional or optional technological scheme, cannot exhaustive all alternative technical characteristicss of the present utility model and alternative technological scheme in order to describe succinct to need in presents, also the mode of execution being not easy to each technical characteristics all emphasizes that it is one of optional numerous embodiments, so those skilled in the art should know: arbitrary technological means that the utility model can be provided carries out two or more technological means any of replacing or being provided by the utility model or technical characteristics carries out mutually combining and obtaining new technological scheme.Any technical characteristics in the present embodiment and any technological scheme all do not limit protection domain of the present utility model, protection domain of the present utility model should comprise those skilled in the art do not pay creative work thinkable any alternate embodiments and those skilled in the art two or more technological means any that the utility model is provided or the technical characteristics new technological scheme carrying out mutually combining and obtain.
The utility model embodiment provide a kind of filth-discharging effect obviously, long service life, reliability more preferably bearing bearing sleeve and the speed reducer of this bearing bearing sleeve is set.
Below in conjunction with the elaboration that Fig. 2 carries out specifically to the technological scheme that the utility model provides.
As shown in Figure 2, the bearing bearing sleeve that the utility model embodiment provides comprises cylindrical shell 1 and is arranged on the outer bearing limit dais 11 of cylindrical shell 1 inwall, inner bearing limit dais 12, wherein:
The position of outer bearing limit dais 11 on cylindrical shell 1 inwall is relative to the inside of inner bearing limit dais 12 further from speed reducer.Cylindrical shell 1 is provided with at least one blowdown through hole 13, blowdown through hole 13 runs through the barrel of cylindrical shell 1, the dirt inlet of blowdown through hole 13 (or claim: pollutant entry port) is arranged on the region away from the inside of speed reducer around outer bearing limit dais 11 on cylindrical shell 1 inwall, on the end face of the wherein one end on the outer wall that the sewage draining exit of blowdown through hole 13 (or claim: pollutant exhaust port) is arranged on cylindrical shell 1 or on the axial direction of cylindrical shell 1.
In the bearing bearing sleeve that the utility model embodiment provides, cylindrical shell 1 is provided with at least one blowdown through hole 13, blowdown through hole 13 can by spline housing 6, the gear wet goods pollutant of the gap location accumulation between outer bearing 4 and cylindrical shell 1 three is discharged outside cylindrical shell 1 in time, not only can promote outer bearing 4, effective circulation of gear oil between inner bearing 5 two side areas, but also ensure that when cleaning speed reducer and changing gear oil, can thoroughly clean (even if in Fig. 2, M-N reference line also can thoroughly clean with the gear oil of lower area), prevent residual bearing neighboring area especially in Fig. 2 the impurity of a-quadrant to the new gear oil produced pollution injected, so reduce the bearing neighboring area especially impurity concentration of a-quadrant in Fig. 2, avoid gear oil and produce local adhesion in a-quadrant, accumulation and precipitation, can not effectively circulate, the phenomenon that cannot thoroughly clean occurs, ensure that the normal work and use life-span of bearing.
As preferably or alternatively mode of execution, the spacing between the center line of dirt inlet and cylindrical shell 1 is greater than the spacing between the center line of outer bearing limit dais 11 and cylindrical shell 1.In said structure, the position pollutant at dirt inlet place is easy to concentrated, so said structure can reach the effect of blowdown ideally.Preferably, there is angle between the center line of described blowdown through hole and the center line of described cylindrical shell.As preferably or alternatively mode of execution, the sewage draining exit of blowdown through hole 13 is towards the inside of speed reducer.The position height of the sewage draining exit of blowdown through hole 13 is lower than the dirt inlet of blowdown through hole 13.Now, be not only conducive to the discharge of pollutant, and pollutant not easily pollutes speed reducer space outerpace.
As preferably or alternatively mode of execution, the outer wall of cylindrical shell 1 is also provided with at least one locating flange 14, locating flange 14 is provided with positioning through hole.The cylindrical shell 1 that is set to of locating flange 14 provides the mounting points can carrying out with decelerator shell being connected, fixing.
As preferably or alternatively mode of execution, the accessibke porosity 132 that blowdown through hole 13 comprises inner via hole 131 and is connected with inner via hole 131, the internal diameter of accessibke porosity 132 is greater than inner via hole 131, inner via hole 131 deviates from the dirt inlet of the port formation blowdown through hole 13 of accessibke porosity 132, and accessibke porosity 132 deviates from the sewage draining exit of the port formation blowdown through hole 13 of inner via hole 131.The circulation area of accessibke porosity 132 is conducive to more greatly pollutant with the blowdown of speed discharge faster through hole 13.
As preferably or alternatively mode of execution, outer bearing limit dais 11 and inner bearing limit dais 12 all extend along the whole circumferential direction of cylindrical shell 1 separately, and the internal diameter of outer bearing limit dais 11 is less than the internal diameter of inner bearing limit dais 12.This structure is conducive to outer bearing 4 and installs step by step according to from interior step outward with inner bearing 5.
As preferably or alternatively mode of execution, region away from the inside of speed reducer around outer bearing limit dais 11 on cylindrical shell 1 inwall is provided with concave station 15, the internal diameter of concave station 15 is greater than the internal diameter of outer bearing limit dais 11, concave station 15 and outer bearing limit dais 11 form stepped part, and the dirt inlet of blowdown through hole 13 is arranged between concave station 15 and outer bearing limit dais 11.Concave station 15 can form contaminant collecting space, is convenient to pollutant to concentrate thus discharge.
The speed reducer that the utility model embodiment provides, comprise the power input mechanism of speed reducer, the power input mechanism of speed reducer comprises the bearing bearing sleeve that bevel gear 2, rotating shaft 3, outer bearing 4, inner bearing 5, spline housing 6 and the arbitrary technological scheme of the utility model provide, wherein:
One end of bevel gear 2 is fixedly connected with both rotating shafts 3 or both are integral type structure, and spline housing 6 and rotating shaft 3 form spline joint.The inner ring of outer bearing 4 is set on the outer wall of spline housing 6, and the inner ring of inner bearing 5 is set on the outer wall of rotating shaft 3.The cylindrical shell 1 of bearing bearing sleeve is set in outside outer bearing 4 and inner bearing 5, and outer bearing limit dais 11 abuts against with the outer ring of outer bearing 4, and inner bearing limit dais 12 abuts against with the outer ring of inner bearing 5.Gap between spline housing 6, outer bearing 4 and cylindrical shell 1 three is connected with the dirt inlet of blowdown through hole 13.
Gap location between spline housing 6, outer bearing 4 and cylindrical shell 1 three is the place that pollutant is comparatively concentrated, and is discharged by pollutant advantageously by blowdown through hole 13, produces harm to avoid pollutant.
During installation, need to make the position of the sewage draining exit of the blowdown through hole 13 of cylindrical shell 1 be in the bottom of speed reducer input mechanism, thus ensure that the sewage draining exit of the blowdown through hole 13 of cylindrical shell 1 can utilize Action of Gravity Field, realize blowdown preferably.
As preferably or alternatively mode of execution, the power input mechanism of speed reducer also comprises back-up ring and anticreep circle body, shield ring sleeve to be connected in rotating shaft 3 and to abut against with the part that spline housing 6 deviates from bevel gear 2, and the threaded one end that anticreep circle body (can be nut) and rotating shaft 3 deviate from bevel gear 2 is connected.Back-up ring can play seal action.Anticreep circle body can prevent spline housing 6 from deviating from from rotating shaft 3.
As preferably or alternatively mode of execution, the power input mechanism of speed reducer also comprises oil seal structure 7, oil seal structure 7 is arranged between spline housing 6 and cylindrical shell 1, and the gap between oil seal structure 7, spline housing 6, outer bearing 4 and cylindrical shell 1 four is connected with the dirt inlet of blowdown through hole 13.Oil seal structure 7 can play good sealing effect, avoids from external contaminants to infiltrate within bearing bearing sleeve.
Above-mentioned arbitrary technological scheme disclosed in the utility model unless otherwise stated, if the number range of it discloses, so disclosed number range is preferred number range, anyly it should be appreciated by those skilled in the art: preferred number range is only the numerical value that in many enforceable numerical value, technique effect is obvious or representative.Because numerical value is more, cannot be exhaustive, so the utility model just discloses component values to illustrate the technical solution of the utility model, and the above-mentioned numerical value enumerated should not form restriction the utility model being created to protection domain.
If employ the word such as " first ", " second " herein to limit component, those skilled in the art should know: the use of " first ", " second " is only used to be convenient to describe carry out difference as not having outside Stated otherwise to component, the implication that above-mentioned word is not special.
Simultaneously, if above-mentioned the utility model discloses or relate to component or the structural member of connection fastened to each other, so, unless otherwise stated, be fixedly connected with and can be understood as: can releasably be fixedly connected with (such as using bolt or screw to connect), also can be understood as: to be non-removablely fixedly connected with (such as rivet, weld), certainly, connection fastened to each other also can be replaced by integral type structure (such as use casting technique is integrally formed create) (obviously cannot adopt except integrally formed technique).
In addition, apply in arbitrary technological scheme disclosed in above-mentioned the utility model for represent position relationship or shape term unless otherwise stated its implication comprise approximate with it, similar or close state or shape.Arbitrary parts that the utility model provides both can be assembled by multiple independent constituent element, and also can be one of the forming manufacture technics separate part out.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the field have been to be understood that: still can modify to embodiment of the present utility model or carry out equivalent replacement to portion of techniques feature; And not departing from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technological scheme scope of the utility model request protection.
Claims (10)
1. a bearing bearing sleeve, is characterized in that, comprises cylindrical shell and is arranged on outer bearing limit dais, the inner bearing limit dais of described cylinder inboard wall, wherein:
The position of described outer bearing limit dais on described cylinder inboard wall is relative to the inside of described inner bearing limit dais further from speed reducer;
Described cylindrical shell is provided with at least one blowdown through hole, described blowdown through hole runs through the barrel of described cylindrical shell;
The dirt inlet of described blowdown through hole is arranged on the region away from the inside of described speed reducer around described outer bearing limit dais on described cylinder inboard wall, and the spacing between the dirt inlet of described blowdown through hole and the center line of described cylindrical shell is greater than the spacing between described outer bearing limit dais and the center line of described cylindrical shell;
On the end face of the sewage outfalls setting of described blowdown through hole wherein one end on the outer wall of described cylindrical shell or on the axial direction of described cylindrical shell.
2. bearing bearing sleeve according to claim 1, is characterized in that, there is angle between the center line of described blowdown through hole and the center line of described cylindrical shell.
3. bearing bearing sleeve according to claim 1, is characterized in that, the sewage draining exit of described blowdown through hole is towards the inside of described speed reducer, and the position height of the sewage draining exit of described blowdown through hole is lower than the dirt inlet of described blowdown through hole.
4. bearing bearing sleeve according to claim 1, is characterized in that, the outer wall of described cylindrical shell is also provided with at least one locating flange, and described locating flange is provided with positioning through hole.
5. bearing bearing sleeve according to claim 1, it is characterized in that, the accessibke porosity that described blowdown through hole comprises inner via hole and is connected with described inner via hole, the internal diameter of described accessibke porosity is greater than the internal diameter of described inner via hole, the port that described inner via hole deviates from described accessibke porosity forms the dirt inlet of described blowdown through hole, and the port that described accessibke porosity deviates from described inner via hole forms the sewage draining exit of described blowdown through hole.
6. bearing bearing sleeve according to claim 1, it is characterized in that, described outer bearing limit dais and described inner bearing limit dais all extend along the whole circumferential direction of described cylindrical shell separately, and the internal diameter of described outer bearing limit dais is less than the internal diameter of described inner bearing limit dais.
7. bearing bearing sleeve according to claim 1, it is characterized in that, region away from the inside of described speed reducer around described outer bearing limit dais on described cylinder inboard wall is provided with concave station, the internal diameter of described concave station is greater than the internal diameter of described outer bearing limit dais, described concave station and described outer bearing limit dais form stepped part, and the dirt inlet of described blowdown through hole is arranged between described concave station and described outer bearing limit dais.
8. a speed reducer, is characterized in that, comprises the power input mechanism of speed reducer, and the power input mechanism of described speed reducer comprises the arbitrary described bearing bearing sleeve of bevel gear, rotating shaft, outer bearing, inner bearing, spline housing and claim 1-7, wherein:
One end of described bevel gear is fixedly connected with described rotating shaft or both are integral type structure, and described spline housing and described rotating shaft form spline joint;
The inner ring of described outer bearing is set on the outer wall of described spline housing, and the inner ring of described inner bearing is set on the outer wall of described rotating shaft;
The described barrel jacket of described bearing bearing sleeve is located at outside described outer bearing and described inner bearing, and the outer ring of described outer bearing limit dais and described outer bearing abuts against, and the outer ring of described inner bearing limit dais and described inner bearing abuts against;
Gap between described spline housing, described outer bearing and described cylindrical shell three is connected with the dirt inlet of described blowdown through hole.
9. speed reducer according to claim 8, it is characterized in that, the power input mechanism of described speed reducer also comprises back-up ring and anticreep circle body, described shield ring sleeve to be connected in described rotating shaft and to abut against with the part that described spline housing deviates from described bevel gear, and the threaded one end that described anticreep circle body and described rotating shaft deviate from described bevel gear is connected.
10. speed reducer according to claim 8, it is characterized in that, the power input mechanism of described speed reducer also comprises oil seal structure, described oil seal structure is arranged between described spline housing and described cylindrical shell, and the gap between described oil seal structure, described spline housing, described outer bearing and described cylindrical shell is connected with the dirt inlet of described blowdown through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420400372.9U CN204239486U (en) | 2014-07-18 | 2014-07-18 | Bearing bearing sleeve and speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420400372.9U CN204239486U (en) | 2014-07-18 | 2014-07-18 | Bearing bearing sleeve and speed reducer |
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| Publication Number | Publication Date |
|---|---|
| CN204239486U true CN204239486U (en) | 2015-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420400372.9U Active CN204239486U (en) | 2014-07-18 | 2014-07-18 | Bearing bearing sleeve and speed reducer |
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| CN (1) | CN204239486U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109566554A (en) * | 2017-09-29 | 2019-04-05 | 株式会社岛野 | Fishing tackle winder |
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2014
- 2014-07-18 CN CN201420400372.9U patent/CN204239486U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109566554A (en) * | 2017-09-29 | 2019-04-05 | 株式会社岛野 | Fishing tackle winder |
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