CN103629329A - Installation structure with controllable axial clearance - Google Patents
Installation structure with controllable axial clearance Download PDFInfo
- Publication number
- CN103629329A CN103629329A CN201210303143.0A CN201210303143A CN103629329A CN 103629329 A CN103629329 A CN 103629329A CN 201210303143 A CN201210303143 A CN 201210303143A CN 103629329 A CN103629329 A CN 103629329A
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- CN
- China
- Prior art keywords
- support
- heating pad
- bearing
- endoporus
- mounting structure
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
- F16H57/022—Adjustment of gear shafts or bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
- F16H57/022—Adjustment of gear shafts or bearings
- F16H2057/0221—Axial adjustment
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
Abstract
An installation structure with controllable axial clearance comprises a rotating shaft, a bearing, a steel ball and a nylon support, wherein the shaft end of the rotating shaft is sleeved with the bearing, the steel ball and the bearing are sequentially arranged in an open cavity of the nylon support from inside to outside, and the steel ball and the bearing are arranged in an inner hole of a box body of a gear box through the nylon support. The installation structure is characterized in that a heating gasket is arranged on the matching face of the top portion of the nylon support and the inner hole of the box body, a plastic boss which abuts against the heating gasket is arranged at the bottom of the inner hole of the box body, the nylon support is inserted into the inner hole of the box body through interference fit, in the assembling process, the heating gasket conducts heating due to triggering of external high frequencies, and therefore extrusion is generated due to the fact that the plastic boss and the nylon support get soft when heated, and automatic regulation of axial clearance is achieved. The installation structure is reasonable in design and ingenious in concept, the requirements of all parts for machining are lowered, the axial clearance of a motor can be controllable, and meanwhile noise of the motor is reduced.
Description
Technical field
The present invention relates to technical field of motors, specifically the controlled mounting structure of a kind of axial clearance.
Background technique
When traditional motor (Fig. 6) is installed, the mode that rotor axial gap adopts dimensional chain to coordinate conventionally completes assembling, as shown in Fig. 7 ~ 10, during installation, the axle head of rotating shaft 1 is equipped with ball bearing 2, by nylon support 4, be arranged in the endoporus of gear case body 5, between the top of rotating shaft 1 and nylon support 4, be provided with steel ball 3, wherein the top of nylon support 4 is planes, offset with the endoporus plane of casing 5, after all assembling parts, be very close to each other, but because tolerance of size problem, causing in practical set process there will be rotor shaft 1 top and steel ball 3 directly to have certain interval or interference dieback, cause motor noise.And above-mentioned way, high to each component requirement of motor, processed complex, needs cun pairing use one by one of full dipping to each parts.
Summary of the invention
Technical problem to be solved by this invention be for the above-mentioned state of the art, provide a kind of reasonable in design, process the controlled mounting structure of axial clearance simple, easy to assembly.
The present invention solves the problems of the technologies described above adopted technological scheme: the mounting structure that a kind of axial clearance is controlled, comprise rotating shaft, be nested with the bearing at rotating shaft axle head, steel ball and support, described support is the tube-in-tube structure of an end opening, described steel ball, bearing is placed in the open-ended cavity of support from inside to outside successively, and by support, be arranged in the endoporus of gear case body, it is characterized in that: the fitting surface of the top of described support and the endoporus of casing is provided with a heating pad, the endoporus bottom of described casing is provided with the plastics boss offseting with the pad that generates heat, described support is inserted in the endoporus of casing by interference fit, during assembling, the lower heating of described heating pad initiation high-frequency externally, and then make the deliquescing of being heated of plastics boss eliminate the pressure that is squeezed, realize the automatic adjusting of axial clearance.
As improvement, described heating pad is a metallic shim, and described support adopts nylon support, on the top end face of support, along circumference, is provided with some cramps for fixing heating pad, and it is fixing that described heating pad is placed in the catching groove of cramp composition.
As improvement, described heating pad is ring, and described plastics boss is the step-like boss that is ring corresponding with heating pad, and described heating pad is nested with on plastics boss and just in time offsets with the step surface of plastics boss.
Improve, the thickness of described heating pad is between 0.4 ~ 0.6mm again, and the height of described plastics boss is between 2 ~ 2.1mm.
Further improve, the bottom of the cavity of described support forms the circular port that the bottom that can insert for steel ball is the conical surface, described bearing adopts ball bearing, and the cavity inner wall face of described circular port top is shaped to the sphere matching with ball bearing, and longitudinally offers some bar-shaped troughs along circumference.
Finally, the magnitude of interference of described support and described endoporus is between 0.4 ~ 0.65mm.
Compared with prior art, the invention has the advantages that: the endoporus bottom at gear case body arranges plastics boss, heating pad is set on the corresponding surface of nylon support, in the assembly process that screws, utilize outside high frequency to cause the heating of heating pad, cause the deliquescing of being heated of plastics boss, under the extruding of nylon support, realize overall co-ordination size close-fitting, after beating end screw, plastics hardening by cooling, and nylon support and casing are fixed, thus reach the object of automatic adjusting axial clearance.The present invention is reasonable in design, is skillfully constructed, and has reduced the processing request to each parts, makes motor-driven rotating shaft axial clearance controlled, has also reduced noise simultaneously, increases the service life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the partial enlarged drawing of C part in Fig. 1;
Fig. 3 is the STRUCTURE DECOMPOSITION schematic diagram of mounting structure of the present invention;
Fig. 4 is the front elevation of mounting structure of the present invention;
Fig. 5 is that Fig. 4 is along the structure sectional view of F-F line;
Fig. 6 is traditional structural representation;
The partial enlarged drawing of A part in Fig. 7 bitmap 6;
Fig. 8 is the assembling schematic diagram of nylon support and steel ball in tradition, ball bearing;
The front elevation of the nylon support of Fig. 9 is traditional installation steel ball, ball bearing;
Figure 10 is that Fig. 9 is along the structure sectional view of E-E line.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
As shown in Fig. 1 ~ 5, the electric motor mounting structure that a kind of axial clearance is controlled, comprise the rotating shaft 1 of driven by motor, be nested with the ball bearing 2 at rotating shaft 1 axle head, steel ball 3, nylon support 4 and heating pad 6, steel ball 3, ball bearing 2 is placed in the open-ended cavity of nylon support 4 from inside to outside successively, . and by nylon support 4, be arranged in the endoporus of gear case body 5, nylon support 4 is the tube-in-tube structure of an end opening, nylon support 4 is provided with and can supplies steel ball 3, the cavity that ball bearing 2 is inserted, the bottom of cavity forms the circular port 43 that the bottom that can insert for steel ball 3 is the conical surface, the cavity inner wall face of circular port 43 tops is shaped to the sphere 44 matching with ball bearing 2, and along circumference, longitudinally evenly offer 6 bar-shaped troughs 42 at the opening of sphere 44, can facilitate packing into of ball bearing 2, heating pad 6 is the metallic shim of a ring, thickness is 0.5mm, on the fitting surface of the endoporus of the top of nylon support 4 and casing 5, along even circumferential, be provided with 6 for the cramp 41 of fixing heating pad 6, it is fixing that heating pad 6 is placed in the catching groove of cramp 41 compositions, the endoporus bottom of casing 5 is provided with the plastics boss 51 offseting with the pad 6 that generates heat, the height of plastics boss is 2.0mm, plastics boss 51 is the step-like boss that is ring corresponding with heating pad 6, with the one-body molded single piece out of plastic gear box body 5, nylon support 4 is inserted in the endoporus of casing 5 by interference fit, heating pad 6 is nested with on plastics boss 51 and just in time offsets with the step surface of plastics boss 51, nylon support 4 is being 0.5mm with the magnitude of interference of endoporus, during assembling, the lower heating of initiation high-frequency externally of heating pad 6, and then make the deliquescing of being heated of plastics boss 51 and nylon support 7, under mutually pushing, mostly is 51 distortion of plastics boss, realize the automatic adjusting of axial clearance of motor.
During assembling, first by steel ball 3, ball bearing 2, rotating shaft 1, pack in the cavity of nylon support 4, heating pad 6 is contained in to the top of nylon support 4, then nylon support 4 is packed in the endoporus of gear case body 5 by interference fit, the pad 6 that makes to generate heat offsets with the plastics boss 51 of endoporus; Pass through automatic equipment, in the assembly process that screws, utilize outside high frequency to cause heating pad 6 heatings at nylon support 4 tops, cause the deliquescing of being heated of plastics boss 51 and nylon support 4, because integral body has magnitude of interference, in the process that screws, nylon support 4 can be subject to inside top power, make to be subject to soft plastic boss 51 to push toward surrounding space, after beating end screw, during overall co-ordination size close-fitting, power disappears, 51 hardenings by cooling of plastics boss, just complete whole Spielpassung, and nylon support 4 is fixing with casing 5.With the motor of this kind of explained hereafter, its whole Spielpassung is more stable, and its gap width is controlled in 0.08mm.
Claims (6)
1. the mounting structure that axial clearance is controlled, comprise rotating shaft, be nested with the bearing at rotating shaft axle head, steel ball and support, described support is the tube-in-tube structure of an end opening, described steel ball, bearing is placed in the open-ended cavity of support from inside to outside successively, and by support, be arranged in the endoporus of gear case body, it is characterized in that: the fitting surface of the top of described support and the endoporus of casing is provided with a heating pad, the endoporus bottom of described casing is provided with the plastics boss offseting with the pad that generates heat, described support is inserted in the endoporus of casing by interference fit, during assembling, the lower heating of described heating pad initiation high-frequency externally, and then make the deliquescing of being heated of plastics boss eliminate the pressure that is squeezed, realize the automatic adjusting of axial clearance.
2. mounting structure according to claim 1, it is characterized in that described heating pad is a metallic shim, described support adopts nylon support, on the top end face of support, along circumference, is provided with some cramps for fixing heating pad, and it is fixing that described heating pad is placed in the catching groove of cramp composition.
3. mounting structure according to claim 2, it is characterized in that described heating pad is ring, described plastics boss is the step-like boss that is ring corresponding with heating pad, and described heating pad is nested with on plastics boss and just in time offsets with the step surface of plastics boss.
4. mounting structure according to claim 3, is characterized in that the thickness of described heating pad is between 0.4 ~ 0.6mm, and the height of described plastics boss is between 2 ~ 2.1mm.
5. according to the mounting structure described in the arbitrary claim of claim 1 to 4, the bottom that it is characterized in that the cavity of described support forms the circular port that the bottom that can insert for steel ball is the conical surface, described bearing adopts ball bearing, the cavity inner wall face of circular port top is shaped to the sphere matching with ball bearing, and longitudinally offers some bar-shaped troughs along circumference.
6. according to the mounting structure described in the arbitrary claim of claim 1 to 4, it is characterized in that the magnitude of interference of described support and described endoporus is between 0.4 ~ 0.65mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210303143.0A CN103629329A (en) | 2012-08-24 | 2012-08-24 | Installation structure with controllable axial clearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210303143.0A CN103629329A (en) | 2012-08-24 | 2012-08-24 | Installation structure with controllable axial clearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103629329A true CN103629329A (en) | 2014-03-12 |
Family
ID=50210676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210303143.0A Pending CN103629329A (en) | 2012-08-24 | 2012-08-24 | Installation structure with controllable axial clearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103629329A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5294969A (en) * | 1976-02-06 | 1977-08-10 | Hitachi Ltd | Rotating body supporting device |
| CN2465971Y (en) * | 2001-02-27 | 2001-12-19 | 张兆灵 | Automotive window electric lifter |
| CN201726223U (en) * | 2010-07-12 | 2011-01-26 | 海安联科汽车零部件有限公司 | Novel motor for automobile electric window lifter |
| CN201774383U (en) * | 2010-08-19 | 2011-03-23 | 翁林华 | Motor for vehicle door window regulator |
| CN202833975U (en) * | 2012-08-24 | 2013-03-27 | 宁波恒特汽车零部件有限公司 | Installation structure with axial clearance capable of being controlled |
-
2012
- 2012-08-24 CN CN201210303143.0A patent/CN103629329A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5294969A (en) * | 1976-02-06 | 1977-08-10 | Hitachi Ltd | Rotating body supporting device |
| CN2465971Y (en) * | 2001-02-27 | 2001-12-19 | 张兆灵 | Automotive window electric lifter |
| CN201726223U (en) * | 2010-07-12 | 2011-01-26 | 海安联科汽车零部件有限公司 | Novel motor for automobile electric window lifter |
| CN201774383U (en) * | 2010-08-19 | 2011-03-23 | 翁林华 | Motor for vehicle door window regulator |
| CN202833975U (en) * | 2012-08-24 | 2013-03-27 | 宁波恒特汽车零部件有限公司 | Installation structure with axial clearance capable of being controlled |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140312 |
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| RJ01 | Rejection of invention patent application after publication |