CN204205792U - Oil containing bearing end cover assembly and motor - Google Patents
Oil containing bearing end cover assembly and motor Download PDFInfo
- Publication number
- CN204205792U CN204205792U CN201420519319.0U CN201420519319U CN204205792U CN 204205792 U CN204205792 U CN 204205792U CN 201420519319 U CN201420519319 U CN 201420519319U CN 204205792 U CN204205792 U CN 204205792U
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- bearing
- sealing ring
- machine shaft
- cover assembly
- oil containing
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Abstract
The utility model is applicable to electric machine structure technical field, provide oil containing bearing end cover assembly and there is the motor of this oil containing bearing end cover assembly, oil containing bearing end cover assembly comprises end cap, be sheathed on machine shaft and be contained in oiliness bearing in end cap, be located at bearing lubricant between end cap and oiliness bearing and be sheathed on machine shaft with gap fiting mode outer and be fastenedly connected the sealing ring of end cap, and sealing ring fits tightly on oiliness bearing along the axis of machine shaft.The utility model, undertaken preventing bearing lubricant from leaking out outside end cap by sealing ring, the bearing grease making bearing lubricant that resistance to elevated temperatures can be adopted poor, reduces the cost of bearing lubricant.Simultaneously, because sealing ring is installed on machine shaft in the mode of matched in clearance, therefore in machine shaft running, sealing ring can not rotate with machine shaft, effectively eliminate the hidden danger that machine shaft and sealing ring rub, fully ensure that the long-term effectiveness of seal ring seal performance.
Description
Technical field
The utility model belongs to electric machine structure technical field, particularly relates to oil containing bearing end cover assembly and has the motor of this oil containing bearing end cover assembly.
Background technology
In conventional art, oiliness bearing is installed on electric motor end cap and does not design leak-proof arrangement, thus causes motor easily to occur that the phenomenon (i.e. oil leakage phenomenon) that bearing lubricant overflows occurs in hot environment.
In order to solve the problem, prior art proposes two kinds of solutions:
A kind of scheme is that bearing lubricant adopts resistance to elevated temperatures preferably bearing grease (bearing grease as still liquefied at temperature is more than 150 DEG C), and like this, the phenomenon of overflowing outside end cap occurs can to prevent bearing lubricant from liquefying in high temperature environments; But the program can cause the cost compare of bearing lubricant high, thus the cost of motor can be caused higher, and then the market competitiveness of motor can be reduced.
Another kind of scheme reduces the axis hole aperture that on end cap, power supply machine rotating shaft wears, and on machine shaft a sheathed sealing ring, and make sealing ring be interference fit with coordinating of machine shaft.There are following two weak points in the program: aperture in a particular application that 1) reduce end cap upper shaft hole, can reduce the fit clearance of end cap upper shaft hole and machine shaft, thus there is the hidden danger that machine shaft and shaft hole inner wall rub; 2) sealing ring and machine shaft interference fit are arranged, in motor operation course, sealing ring can rotate along with machine shaft, and larger friction can be produced between sealing ring and machine shaft, thus the Fast Wearing of sealing ring can be caused, and then the useful life of sealing ring and the long-time stability of sealing property are had a strong impact on.
Utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provide oil containing bearing end cover assembly and have the motor of this oil containing bearing end cover assembly, it is intended to solve, and bearing lubricant that existing motor oiliness bearing uses is high temperature resistant requires that high and oil-leakage-prevention sealing ring arranges irrational technical problem.
For achieving the above object, the technical solution adopted in the utility model is: oil containing bearing end cover assembly, comprise end cap, be sheathed on machine shaft and be contained in oiliness bearing in described end cap, be located at bearing lubricant between described end cap and described oiliness bearing and be sheathed on described machine shaft with gap fiting mode outer and be fastenedly connected the sealing ring of described end cap, described sealing ring fits tightly on described oiliness bearing along the axis of described machine shaft.
Particularly, described end cap comprises the body with bearing chamber and along the axially extended sleeve of described body, it is indoor that described oiliness bearing and described bearing lubricant are all located at described bearing bore, and described sealing ring wears and connects described sleeve.
Particularly, described sealing ring has the portion that wears and the screens portion be stuck in outside described sleeve that are arranged in described sleeve.
Particularly, described sleeve comprises the axial extension axially extended towards the direction away from described oiliness bearing along it and the radial extension bending extension along described axial extension end towards the direction of described axial extension central shaft, on the outer wall of described sealing ring, radial direction is arranged with ring-type draw-in groove, describedly wear the both sides that portion and described screens portion lay respectively at described ring-type draw-in groove, described radial extension card inserts in described ring-type draw-in groove.
Preferably, described axial extension is straight-tube shape.
Preferably, described radial extension vertically bends setting along described axial extension.
Preferably, described bearing lubricant is fiber grease.
Further, oil containing bearing end cover assembly also comprises pressure ring and gland, described gland covers and is fixed on described end cap, the inner side of described pressure ring is resisted against on the outer wall of described oiliness bearing, the outside of described pressure ring is resisted against on the inwall of described gland, and described bearing lubricant is located at described end cap, described oiliness bearing and described pressure ring and is enclosed in the space of formation.
The oil containing bearing end cover assembly that the utility model provides, fitted tightly by the axis on sealing ring and oiliness bearing, the object of effective sealing bearing lubricant can be reached, like this, even if bearing lubricant liquefies in high temperature environments, bearing lubricant also can not leak out outside end cap, thus makes the bearing grease that bearing lubricant can adopt resistance to elevated temperatures poor, and then is beneficial to the cost reducing bearing lubricant.Simultaneously, because sealing ring is installed on machine shaft in the mode of matched in clearance, therefore in machine shaft running, sealing ring can not rotate with machine shaft, effectively eliminate when machine shaft rotates and the hidden danger that rubs of sealing ring, fully ensure that the useful life of sealing ring and the long-term effectiveness of sealing property.
Further, the utility model additionally provides motor, and it comprises machine shaft and above-mentioned oil containing bearing end cover assembly, and described oiliness bearing and described sealing ring are all sheathed on described machine shaft.
Particularly, described machine shaft comprises the second axle part that the first axle part and external diameter are less than described the first axle part external diameter, described oiliness bearing is placed on described the first axle part, described sealing ring is along its central shaft to running through the axis hole be provided with described the second axle part matched in clearance, and described sealing ring is placed on described the second axle part by described axis hole.
The motor that the utility model provides, owing to have employed above-mentioned oil containing bearing end cover assembly, therefore, reduce the cost of motor on the one hand; Improve the sealing property of motor and the long-time stability of motor operation on the other hand.
Accompanying drawing explanation
Fig. 1 is the structural representation of the motor that the utility model embodiment provides;
Fig. 2 is the fit structure schematic diagram of the oil containing bearing end cover assembly that provides of the utility model embodiment and machine shaft;
Fig. 3 is the structural representation of the end cap that the utility model embodiment provides;
Fig. 4 is the structural representation of the sealing ring that the utility model embodiment provides;
Fig. 5 is the structural representation of the machine shaft that the utility model embodiment provides.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in figures 1-4, the oil containing bearing end cover assembly that the utility model embodiment provides, comprise end cap 1, to be sheathed on machine shaft 7 and the oiliness bearing 2 be contained in end cap 1, be located at bearing lubricant 3 between end cap 1 and oiliness bearing 2 and be sheathed on machine shaft 7 with gap fiting mode outer and be fastenedly connected the sealing ring 4 of end cap 11, sealing ring 4 fits tightly in oiliness bearing 2 along the axis of machine shaft 7, oiliness bearing 2 has the first axial end 21 towards sealing ring 4, sealing ring 4 has the second axial end 411 fitted tightly on the first axial end 21.The oil containing bearing end cover assembly that the utility model embodiment provides, by fitting tightly of the first axial end 21 on the second axial end 411 on sealing ring 4 and oiliness bearing 2, the object of effective sealing bearing lubricant 3 can be reached, like this, even if bearing lubricant 3 liquefies in high temperature environments, bearing lubricant 3 also can not leak out outside end cap 1, thus makes the bearing grease that bearing lubricant 3 can adopt resistance to elevated temperatures poor, and then is beneficial to the cost reducing bearing lubricant 3.Simultaneously, because sealing ring 4 is installed on machine shaft 7 in the mode of matched in clearance, therefore in machine shaft 7 running, sealing ring 4 can not rotate with machine shaft 7, effectively eliminate when machine shaft 7 rotates and hidden danger that sealing ring 4 rubs, fully ensure that the useful life of sealing ring 4, ensure that the long-term effectiveness of sealing ring 4 sealing property.
Particularly, as shown in figures 1 and 3, end cap 1 comprises the body 11 with bearing chamber 110 and along the axially extended sleeve 12 of body 11, oiliness bearing 2 and bearing lubricant 3 are all located in bearing chamber 110, and sealing ring 4 wears branch sleeve 12.The setting of sleeve 12, the primary connection for realizing end cap 1 and sealing ring 4, its structure is simple.
Particularly, as shown in figures 1-4, sealing ring 4 has the portion that wears 41 be arranged in sleeve 12 and the screens portion 42 be stuck in outside sleeve 12, and wear portion 41 between sleeve 12 and machine shaft 7, the second axial end 411 is for wearing the axial end of portion 41 back to screens portion 42.Wear coordinating of portion 41 and sleeve 12, sealing ring 4 can be limited and be installed on moving radially displacement and moving axially displacement after on end cap 1; Screens portion 42 coordinates with sleeve 12, can limit sealing ring 4 further and be installed on and move axially displacement after on end cap 1, and then effectively ensure that sealing ring 4 is installed on the solid and reliable property on end cap 1.
Particularly, as shown in figures 1-4, sleeve 12 comprise the axial extension 121 that axially extends towards the direction away from oiliness bearing 2 along it and vertically extension 121 end bend the radial extension 122 of extension towards the direction of axial extension 121 central shaft, on the outer wall of sealing ring 4, radial direction is arranged with ring-type draw-in groove 43, wear the both sides that portion 41 and screens portion 42 lay respectively at ring-type draw-in groove 43, radial extension 122 card inserts in ring-type draw-in groove 43.The inner surface contour of axial extension 121 is arranged with the outer wall contoured fit wearing portion 41, and the outer wall wearing portion 41 fits tightly on the inwall of axial extension 121, like this, is beneficial to the sealing property ensureing sealing ring 4.Axial extension 121 inwall with wear fitting tightly of portion 41 outer wall, can play radial position-limiting action to sealing ring 4, radial extension 122 is connected with the card of ring-type draw-in groove 43 is slotting, can play axial limiting effect to sealing ring 4; Like this, fully ensure that sealing ring 4 is installed on the solid and reliable property on end cap 1.
Preferably, axial extension 121 is in straight-tube shape, like this, the inner surface contour of axial extension 121 and wear the outer wall profile in portion 41 all in cylindric, it is beneficial to the structural design, the course of processing that simplify end cap 1 and sealing ring 4, and be beneficial to axial extension 121 inwall and wear fitting tightly of portion 41 outer wall, thus be beneficial to the sealing property ensureing sealing ring 4.
Preferably, radial extension 122 vertically extension 121 vertically bends setting, and it is beneficial to the structural design, the course of processing that simplify end cap 1 and sealing ring 4, and is beneficial to and ensures that radial extension 122 blocks the solid and reliable property inserted in ring-type draw-in groove 43.
Preferably, bearing lubricant 3 is fiber grease, and fiber grease is specially the bearing grease mixing and have the fiber impurities such as wool.Fiber grease oil content is high, Oil keeping energy is good, high-temperature stability is good, non-oxidizability is good, like this, be beneficial to the generation reducing oil leakage phenomenon, and be beneficial to the oil content ensureing oiliness bearing 2, ensure that the favorable lubricating property of machine shaft 7 and oiliness bearing 2, and then be beneficial to the useful life ensureing motor.
Particularly, sealing ring 4 can be made up of elastomeric material, and it is beneficial to the machine-shaping of sealing ring 4, and is beneficial to the sealing property ensureing sealing ring 4.
Preferably, sealing ring 4 integrated injection molding, its production process is simple, be beneficial to production in enormous quantities.
Further, as depicted in figs. 1 and 2, above-mentioned oil containing bearing end cover assembly also comprises pressure ring 5 and gland 6, gland 6 covers and is fixed on end cap 1, the inner side of pressure ring 5 is resisted against on the outer wall of oiliness bearing 2, the outside of pressure ring 5 is resisted against on the inwall of gland 6, and bearing lubricant 3 is located at end cap 1, oiliness bearing 2 and pressure ring 5 and is enclosed in the space of formation.The setting of pressure ring 5, can compress oiliness bearing 2 on the one hand, thus can ensure that oiliness bearing 2 is installed on the solid and reliable property in bearing chamber 110; Can prevent bearing lubricant 3 from leaking towards motor internal (in motor case) on the other hand.The setting of gland 6, can lock pressure ring 5, thus can ensure the solid and reliable property that pressure ring 5 is installed on end cap 1.
As depicted in figs. 1 and 2, the utility model embodiment still provides motor, and it comprises machine shaft 7 and above-mentioned oil containing bearing end cover assembly, and oiliness bearing 2 and sealing ring 4 are all sheathed on machine shaft 7.The motor that the utility model embodiment provides, owing to have employed above-mentioned oil containing bearing end cover assembly, therefore, reduce the cost of motor on the one hand; Improve the sealing property of motor and the long-time stability of motor operation on the other hand.
Particularly, as shown in Figure 1, Figure 2, shown in Fig. 4 and Fig. 5, machine shaft 7 comprises the second axle part 72 that the first axle part 71 and external diameter are less than the first axle part 71 external diameter, oiliness bearing 2 is placed on the first axle part 71, sealing ring 4 is along its central shaft to running through the axis hole 44 be provided with the second axle part 72 matched in clearance, and sealing ring 4 is placed on the second axle part 72 by axis hole 44.The intersection of the first axle part 71 and the second axle part 72 forms first shaft shoulder, and first shaft shoulder can play the effect of further axial location to sealing ring 4, is beneficial to the reliability ensureing that sealing ring 4 is located on machine shaft 7.
Particularly, as shown in Figure 1 and Figure 5, oil containing bearing end cover assembly is provided with two, and the second axle part 72 correspondence is provided with two, and two the second axle parts 72 are located at the both sides of the first axle part 71 respectively.
More specifically, as shown in Figure 1 and Figure 5, machine shaft 7 also comprises one end away from the first axle part 71 that the 3rd axle portion 73 of axle portion the 73, three that radial dimension is greater than the second axle part 72 radial dimension is located at the second axle part 72.The intersection in the second axle part 72 and the 3rd axle portion 73 forms second shaft shoulder, and second shaft shoulder can play the effect of further axial location to sealing ring 4, is beneficial to the reliability ensureing that sealing ring 4 is located on machine shaft 7.3rd axle portion 73 can install the parts (not shown) that impeller, rotating disk, guide wheel etc. can be rotated by motor direct-drive.The present embodiment, the 3rd axle portion 73 is only provided with one, and namely only have the end of a second axle part 72 to extend and be provided with the 3rd axle portion 73, the end of another the second axle part 72 does not have extended 3rd axle portion 73; Of course, in embody rule, according to the application demand of concrete motor, the 3rd axle portion 73 also can be provided with two, and two the 3rd axle portions 73 are located at the end back to the first axle part 71 of two the second axle parts 72 respectively.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace or improvement etc., all should be included within protection range of the present utility model.
Claims (10)
1. oil containing bearing end cover assembly, comprise end cap, be sheathed on machine shaft and the oiliness bearing be contained in described end cap and the bearing lubricant be located between described end cap and described oiliness bearing, it is characterized in that: also comprise that to be sheathed on described machine shaft with gap fiting mode outer and be fastenedly connected the sealing ring of described end cap, described sealing ring fits tightly on described oiliness bearing along the axis of described machine shaft.
2. oil containing bearing end cover assembly as claimed in claim 1, it is characterized in that: described end cap comprises the body with bearing chamber and along the axially extended sleeve of described body, it is indoor that described oiliness bearing and described bearing lubricant are all located at described bearing bore, and described sealing ring wears and connects described sleeve.
3. oil containing bearing end cover assembly as claimed in claim 2, is characterized in that: described sealing ring has the portion that wears and the screens portion be stuck in outside described sleeve that are arranged in described sleeve.
4. oil containing bearing end cover assembly as claimed in claim 3, it is characterized in that: described sleeve comprises the axial extension axially extended towards the direction away from described oiliness bearing along it and the radial extension bending extension along described axial extension end towards the direction of described axial extension central shaft, on the outer wall of described sealing ring, radial direction is arranged with ring-type draw-in groove, describedly wear the both sides that portion and described screens portion lay respectively at described ring-type draw-in groove, described radial extension card inserts in described ring-type draw-in groove.
5. oil containing bearing end cover assembly as claimed in claim 4, is characterized in that: described axial extension is straight-tube shape.
6. oil containing bearing end cover assembly as claimed in claim 5, is characterized in that: described radial extension vertically bends setting along described axial extension.
7. the oil containing bearing end cover assembly as described in any one of claim 1 to 6, is characterized in that: described bearing lubricant is fiber grease.
8. the oil containing bearing end cover assembly as described in any one of claim 1 to 6, it is characterized in that: also comprise pressure ring and gland, described gland covers and is fixed on described end cap, the inner side of described pressure ring is resisted against on the outer wall of described oiliness bearing, the outside of described pressure ring is resisted against on the inwall of described gland, and described bearing lubricant is located at described end cap, described oiliness bearing and described pressure ring and is enclosed in the space of formation.
9. motor, comprises machine shaft, it is characterized in that: also comprise the oil containing bearing end cover assembly as described in any one of claim 1 to 8, and described oiliness bearing and described sealing ring are all sheathed on described machine shaft.
10. motor as claimed in claim 9, it is characterized in that: described machine shaft comprises the second axle part that the first axle part and external diameter are less than described the first axle part external diameter, described oiliness bearing is placed on described the first axle part, described sealing ring is along its central shaft to running through the axis hole be provided with described the second axle part matched in clearance, and described sealing ring is placed on described the second axle part by described axis hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420519319.0U CN204205792U (en) | 2014-09-10 | 2014-09-10 | Oil containing bearing end cover assembly and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420519319.0U CN204205792U (en) | 2014-09-10 | 2014-09-10 | Oil containing bearing end cover assembly and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204205792U true CN204205792U (en) | 2015-03-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420519319.0U Active CN204205792U (en) | 2014-09-10 | 2014-09-10 | Oil containing bearing end cover assembly and motor |
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| Country | Link |
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| CN (1) | CN204205792U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107045957A (en) * | 2017-03-03 | 2017-08-15 | 漳州聚安美电气科技有限公司 | One kind switch core anti-oil structure, core assembly and vehicle-mounted switch |
-
2014
- 2014-09-10 CN CN201420519319.0U patent/CN204205792U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107045957A (en) * | 2017-03-03 | 2017-08-15 | 漳州聚安美电气科技有限公司 | One kind switch core anti-oil structure, core assembly and vehicle-mounted switch |
| CN107045957B (en) * | 2017-03-03 | 2020-08-14 | 漳州聚安美电气科技有限公司 | Grease proofing structure of switch core, core subassembly and on-vehicle switch |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |