CN2924901Y - Worm reduction motor - Google Patents
Worm reduction motor Download PDFInfo
- Publication number
- CN2924901Y CN2924901Y CN 200620106135 CN200620106135U CN2924901Y CN 2924901 Y CN2924901 Y CN 2924901Y CN 200620106135 CN200620106135 CN 200620106135 CN 200620106135 U CN200620106135 U CN 200620106135U CN 2924901 Y CN2924901 Y CN 2924901Y
- Authority
- CN
- China
- Prior art keywords
- bearing
- pulling
- piece
- rotor
- mounting groove
- 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 - Fee Related
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- Mounting Of Bearings Or Others (AREA)
Abstract
The utility model relates to a worm gear reducing motor, in particular to an improvement of a bearing allocation structure of the worm gear reducing motor. The utility model is composed of a casing, an end cover and a rotor. The rotor comprises a rotor shaft with a worm output end and a rotor sheet positioned on the rotor shaft. The rotor shaft is provided with a bearing in a press mounting manner, the end cover is provided with an installation groove which matches with the bearing, the bottom of the installation groove is provided with a ring-shaped surface, and the other end of the installation groove is fixedly provided with a zipper pull with a centre bore. The bearing is arranged in the installation groove, one side of the outer ring of the bearing supports the ring- shaped surface at the bottom of the installation groove and the other end of the bearing supports the zipper pull. The utility model has the advantages of reliable allocation between the rotor shaft and the end cover, hard axial moving as well as a stable performance, thereby solving the problems of current worm gear reducing motors, such as easy axial moving caused by axial action between the rotor shaft and the end cover, serious influence over the operating performance of the motor and even possible scrap of the motor.
Description
Technical field
The utility model relates to a kind of worm and gear reducing motor, relates in particular to the improvement of the bearing location structure of worm and gear reducing motor.
Technical background
A kind of motor (patent No.: CN200410074746.3) with turbine and worm decelerator, be provided with motor, turbine and worm decelerator, the armature shaft of motor is one with coaxial being in transmission connection of the worm screw of turbine and worm decelerator, the armature shaft outer end and the worm screw outer end that are positioned on the same axis are equipped with block bearing and block bearing respectively, described worm screw diameter is 1.5～6 times of armature shaft diameter, and worm screw is equipped with block bearing at its end near armature shaft.There are the following problems for the motor of said structure: because the existence of turbine and worm decelerator, in the process of motor rotation, the axial force that armature spindle is subjected to is bigger, easily cause moving axially between armature spindle and the end cap, it is even more serious when reducing gear connects bigger load, this mobile runnability that will have a strong impact on motor, even may cause scrapping of motor.
Summary of the invention
The utility model purpose is to provide a kind of armature spindle and end cap location reliably, difficult moving axially, the worm and gear reducing motor of stable performance, solved between armature spindle that existing worm and gear reducing motor exists and the end cap easily because of moved axially by axial force, have a strong impact on the runnability of motor, even may cause problems such as scrapping of motor.
Above-mentioned technical purpose of the present utility model mainly solves by the following technical programs: comprise casing, be located at the end cap at casing two ends, be located in the casing and the two ends rotation is supported on rotor on the end cap, rotor is made of armature spindle with worm screw output and the rotor punching that is stacked on the armature spindle, be pressed with bearing on the armature spindle, described end cap is provided with the mounting groove that cooperates with bearing, described mounting groove bottom is provided with ring surface, the other end of mounting groove is fixed with the pulling-on piece with centre bore, described bearing is assemblied in the mounting groove, the ring surface of one end of bearing outer ring and mounting groove bottom offsets, and the other end and the pulling-on piece of bearing outer ring offset.The ring surface of the Bearing Installation groove on the end cap and pulling-on piece offset with the two ends of bearing outer ring respectively, with bearing firmly axial location between pulling-on piece and ring surface, because armature spindle and bearing are to adopt to press-fit close-fitting, therefore with bearing shaft to reliable location, also just realized the axially reliable location of armature spindle, when armature spindle is subjected to larger axis to active force, also be difficult for moving axially, guaranteed the reliability of worm and gear reducing motor performance.
As preferably, the internal diameter of the ring surface of described mounting groove bottom and the aperture of pulling-on piece centre bore are between the external diameter of the internal diameter of bearing outer ring and bearing inner race.Wherein, the aperture of the internal diameter of the ring surface of control mounting groove bottom and pulling-on piece centre bore can prevent contacting of ring surface and pulling-on piece and bearing inner race.
As preferably, described pulling-on piece is provided with several through holes, and described end cap is provided with the corresponding installing hole of through hole on several and the pulling-on piece, and pulling-on piece is installed on the end cap by the screw that cooperates with through hole and installing hole.Pulling-on piece is firmly installed on end cap by screw fit through hole and installation, can not become flexible when guaranteeing that pulling-on piece is subjected to axial force.
Therefore, the utlity model has armature spindle and end cap location reliably, difficult moving axially, characteristics such as stable performance.
Description of drawings
Fig. 1 structural representation that to be a kind of pulling-on piece of the present utility model, bearing separate with end cap;
Fig. 2 is a kind of assembly structure schematic diagram of the present utility model.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: the worm and gear reducing motor comprises casing, be located at the end cap at casing two ends and be located in the casing and the two ends rotation is supported on rotor on the end cap, as depicted in figs. 1 and 2, rotor 1 is made of armature spindle 3 with worm screw output 2 and the rotor punching 4 that is stacked on the armature spindle 3, be pressed with bearing 5 on the armature spindle 3, end cap 6 is provided with the mounting groove 7 that cooperates with bearing 5, mounting groove 7 bottoms are provided with ring surface 8, the openend of mounting groove 7 is fixed with the pulling-on piece 10 with centre bore 9, pulling-on piece 10 is provided with 2 through holes 11, end cap 6 be provided with 2 with pulling-on piece 10 on through hole 11 corresponding installing holes 12, pulling-on piece 10 is installed on the end cap 6 by the screw 13 that cooperates with through hole 11 and installing hole 12.The aperture of the internal diameter of the ring surface 8 of mounting groove 7 bottoms and pulling-on piece 10 centre bores 9 is between the external diameter of the internal diameter of bearing outer ring and bearing inner race.Bearing 5 is assemblied in the mounting groove 7, and the ring surface 8 of an end of bearing outer ring and mounting groove 7 bottoms offsets, and the other end of bearing outer ring and pulling-on piece 10 offset.
Claims (3)
1, a kind of worm and gear reducing motor, comprise casing, be located at the end cap at casing two ends, be located in the casing and the two ends rotation is supported on rotor on the end cap, rotor is made of armature spindle with worm screw output and the rotor punching that is stacked on the armature spindle, be pressed with bearing on the armature spindle, described end cap is provided with the mounting groove that cooperates with bearing, it is characterized in that: described mounting groove bottom is provided with ring surface, the other end of mounting groove is with the pulling-on piece with centre bore is arranged surely, described bearing is assemblied in the mounting groove, and the ring surface of an end of bearing outer ring and mounting groove bottom offsets, and the other end and the pulling-on piece of bearing outer ring offset.
2, worm and gear reducing motor according to claim 1, the aperture that it is characterized in that the internal diameter of ring surface of described mounting groove bottom and pulling-on piece centre bore is between the external diameter of the internal diameter of bearing outer ring and bearing inner race.
3, worm and gear reducing motor according to claim 1 and 2, it is characterized in that described pulling-on piece is provided with several through holes, described end cap is provided with the corresponding installing hole of through hole on several and the pulling-on piece, and pulling-on piece is installed on the end cap by the screw that cooperates with through hole and installing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620106135 CN2924901Y (en) | 2006-07-28 | 2006-07-28 | Worm reduction motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620106135 CN2924901Y (en) | 2006-07-28 | 2006-07-28 | Worm reduction motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2924901Y true CN2924901Y (en) | 2007-07-18 |
Family
ID=38261328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620106135 Expired - Fee Related CN2924901Y (en) | 2006-07-28 | 2006-07-28 | Worm reduction motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2924901Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108768059A (en) * | 2018-06-11 | 2018-11-06 | 成都华川电装有限责任公司 | Rotor axial direction location structure and rain shaving electrical machine and its assembly method |
-
2006
- 2006-07-28 CN CN 200620106135 patent/CN2924901Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108768059A (en) * | 2018-06-11 | 2018-11-06 | 成都华川电装有限责任公司 | Rotor axial direction location structure and rain shaving electrical machine and its assembly method |
| CN108768059B (en) * | 2018-06-11 | 2023-09-08 | 成都华川电装有限责任公司 | Motor rotor axial positioning structure, wiper motor and assembly method of wiper motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070718 Termination date: 20100728 |