CN204633507U - The servomotor end cover structure improved - Google Patents
The servomotor end cover structure improved Download PDFInfo
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- CN204633507U CN204633507U CN201520330773.6U CN201520330773U CN204633507U CN 204633507 U CN204633507 U CN 204633507U CN 201520330773 U CN201520330773 U CN 201520330773U CN 204633507 U CN204633507 U CN 204633507U
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- hole
- bearing
- bearing base
- slot
- make way
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Abstract
The utility model discloses a kind of servomotor end cover structure of improvement, coordinate with servomotor bearing and install, comprise lid, cover edge is provided with installing hole, lid center is provided with bearing base hole, servomotor bearing is arranged in bearing base hole, be provided with slot to make way in described bearing base hole, described slot to make way is positioned at the centre in bearing base hole.This utility model can improve the assembly precision of end cap and bearing, reduces assembly difficulty.
Description
Technical field
The utility model relates to machine field, is specially a kind of servomotor end cover structure.
Background technology
Bearing base hole on current existing electric motor end cap coordinates with common deep groove ball bearing external diameter, the general interference fits adopting Js7/h6.When bearing top circle specification is larger, if end cap base hole actual diameter is processed into lower tolerance, or when base aperture ellipticity ratio is larger, because mating surface is longer, just there will be the situation that bearing loads difficulty.To this, general coping style strengthens assembling pressure or base aperture actual diameter is processed into upper tolerance, to improve efficiency of assembling.And it is impaired to strengthen the bearing that assembling pressure easily makes to be assemblied on machine shaft, on the other hand, base aperture diameter being processed into upper tolerance also can make the gap between base aperture and bearing outside diameter become large, higher servomotor is required for quality of fit, also can produce when running up series of problems such as shaking, noise becomes greatly, axiality is not up to standard because of the increasing of fit clearance, therefore be necessary to improve motor end cap structure.
Utility model content
The purpose of this utility model is the servomotor end cover structure providing a kind of improvement, to improve the assembly precision of end cap and bearing, reduces assembly difficulty.
For achieving the above object, the utility model is by the following technical solutions:
The servomotor end cover structure improved, coordinate with servomotor bearing and install, comprise lid, cover edge is provided with installing hole, lid center is provided with bearing base hole, servomotor bearing is arranged in bearing base hole, and be provided with slot to make way in described bearing base hole, described slot to make way is positioned at the centre in bearing base hole, the width of slot to make way is 1/3 of bearing base hole width, and the degree of depth of slot to make way is 0.1 ~ 0.3mm.
Further, bearing base hole is also provided with some air vent holes, described air vent hole is through in the middle part of slot to make way from bearing base outer end of hole face, and the described air vent hole degree of depth is more than or equal to the degree of depth of slot to make way.
Preferably, described air vent hole is circular hole, and arc radius is R1.5mm ~ R2.0mm.
Preferably, described circular hole circumference uniform distribution arranges 4 ~ 6.
After adopting technique scheme, the utility model has following effect:
1. the fit clearance between the bearing base hole of the utility model servomotor end cap and bearing outside diameter diminishes, and quality of fit improves, and can not produce vibrations and noise during complete machine high-speed cruising because of fit clearance problem.
2. slot to make way occupy the centre position of bearing base hole width, respectively has the width of 1/3 to match with bearing base hole about bearing, and such arranging can guarantee that the mating part in bearing base hole and bearing has enough intensity.
3. the space in slot to make way communicates with air by air vent hole, avoid because air airtight in groove produces malleation or negative pressure because expanding with heat and contract with cold, cause the air inside and outside groove to pass the contact-making surface of base aperture and bearing because of pressure differential, make bearing outer ring produce the phenomenon of running circle.
Accompanying drawing explanation
Fig. 1 is perspective view of the present utility model;
Fig. 2 is the cross-sectional schematic of the utility model and bearing assemble;
Fig. 3 is partial schematic sectional view of the present utility model.
Primary symbols illustrates:
1: lid, 2: installing hole, 3: bearing base hole, 4: slot to make way, 5: air vent hole, 6: bearing.
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.
Refer to Fig. 1, the utility model discloses a kind of servomotor end cover structure of improvement, comprise lid 1, cover edge is provided with installing hole 2, lid 1 center is provided with bearing base hole 3, and lid 1 is made for aluminum alloy material.
As shown in Figure 2 and Figure 3, the bearing base hole 3 of electric motor end cap coordinates and installs bearing 6, be provided with slot to make way 4 in bearing base hole 3, slot to make way 4 is positioned at the centre in bearing base hole 3, the width w1 of slot to make way 4 is 1/3 of bearing base hole 3 width w2, and the degree of depth h of slot to make way 4 is 0.1 ~ 0.3mm.The position of slot to make way 4 is arranged can guarantee that there is enough intensity in bearing base hole 3 with the mating part of bearing 6, guaranteeing under assembly precision, when bearing 6 outer shaft cylindrical specification is large, or when bearing base hole 3 ovality is large simultaneously, because mating surface shortens, the assembling of bearing still easily can be completed.
As Fig. 1 shows, be provided with air vent hole 5 in bearing base hole 3, air vent hole 5 is uniform arranges 4 ~ 6, and the present embodiment is provided with four air vent holes 5.Air vent hole 5 is through in the middle part of slot to make way 4 from outer face, bearing base hole 3, and air vent hole 5 degree of depth is more than or equal to the degree of depth of slot to make way 4, so that communicated with air by the air in slot to make way 4.In order to easy to process, air vent hole 5 is set to circular hole, and arc radius is R1.5mm ~ R2.0mm.Air in slot to make way 4 communicates with air by air vent hole 5, and bearing 6 outer ring can be avoided to produce the phenomenon of running circle.
The above, be only the utility model preferably embodiment, is anyly familiar with those skilled in the art in the technical scope that the utility model discloses, the change that can expect easily or replacement, all should be encompassed within protection range of the present utility model.
Claims (4)
1. the servomotor end cover structure improved, coordinate with servomotor bearing and install, comprise lid, cover edge is provided with installing hole, lid center is provided with bearing base hole, servomotor bearing is arranged in bearing base hole, it is characterized in that: be provided with slot to make way in described bearing base hole, described slot to make way is positioned at the centre in bearing base hole, the width of slot to make way is 1/3 of bearing base hole width, and the degree of depth of slot to make way is 0.1 ~ 0.3mm.
2. the servomotor end cover structure improved as claimed in claim 1, it is characterized in that: bearing base hole is also provided with some air vent holes, described air vent hole is through in the middle part of slot to make way from bearing base outer end of hole face, and the described air vent hole degree of depth is more than or equal to the degree of depth of slot to make way.
3. the servomotor end cover structure improved as claimed in claim 2, it is characterized in that: described air vent hole is circular hole, arc radius is R1.5mm ~ R2.0mm.
4. the servomotor end cover structure improved as claimed in claim 3, is characterized in that: described circular hole circumference uniform distribution arranges 4 ~ 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520330773.6U CN204633507U (en) | 2015-05-21 | 2015-05-21 | The servomotor end cover structure improved |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520330773.6U CN204633507U (en) | 2015-05-21 | 2015-05-21 | The servomotor end cover structure improved |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204633507U true CN204633507U (en) | 2015-09-09 |
Family
ID=54052492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520330773.6U Active CN204633507U (en) | 2015-05-21 | 2015-05-21 | The servomotor end cover structure improved |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204633507U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105978208A (en) * | 2016-06-15 | 2016-09-28 | 珠海格力节能环保制冷技术研究中心有限公司 | Connection structure |
-
2015
- 2015-05-21 CN CN201520330773.6U patent/CN204633507U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105978208A (en) * | 2016-06-15 | 2016-09-28 | 珠海格力节能环保制冷技术研究中心有限公司 | Connection structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |