CN202520773U - Roller bearing structure for planetary gear-reduction starter - Google Patents
Roller bearing structure for planetary gear-reduction starter Download PDFInfo
- Publication number
- CN202520773U CN202520773U CN2012201068084U CN201220106808U CN202520773U CN 202520773 U CN202520773 U CN 202520773U CN 2012201068084 U CN2012201068084 U CN 2012201068084U CN 201220106808 U CN201220106808 U CN 201220106808U CN 202520773 U CN202520773 U CN 202520773U
- Authority
- CN
- China
- Prior art keywords
- planet
- roller
- planet wheel
- outer ring
- bearing 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.)
- Expired - Fee Related
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- Rolling Contact Bearings (AREA)
- Retarders (AREA)
Abstract
The utility model relates to a roller bearing structure for a planetary gear-reduction starter, which belongs to the technical field of planetary gear-reduction starters. The roller bearing structure comprises a central wheel shaft or a planet wheel cylinder shaft. A plurality of central wheel pin rollers are arranged on the external surface of the central wheel shaft. The opposite sides of the central wheel pin rollers are contacted with a planet shaft. A plurality of planet wheel pin rollers are arranged on the external surface of the planet wheel cylinder shaft. The opposite sides of the planet wheel pin rollers are contacted with a planet wheel. Key technology of the utility model is that a needle rolling bearing with an outer ring is replaced by the roller bearing without the inner and outer rings; as no outer ring is available, the space is emptied, the diameter of the pin roller is increased and the bearing capacity of the pin roller is enhanced; as no outer ring is available, the number of parts is reduced, conquassation and invalidness of the outer ring caused by that heat treatment on the outer ring does not meet the requirement are avoided, and the service life and the reliability of the planetary gear-reduction starter is greatly improved.
Description
Technical field
The utility model relates to a kind of roller bearing structure that is used for planet deceleration starter, belongs to the planet deceleration starter technical field.
Background technique
Automobile or engineering machinery are started by starter motor with the starting of petrol engine or DENG, and planet deceleration starter is a kind of slowing-down structure form in the starter motor.The planet deceleration starter that generally uses now is in the planetary gear speed reducing mechanism part, owing to limited by physical dimension; Its center wheel bearing and planet wheel bearing are selected the needle bearing of band outer ring for use, and the needle bearing outer ring is formed by the sheet metal punching out, intensity difference; Easy through hardening during heat-treatment quenching because the retarding starter rotating speed is high, moment is big, causes conquassation of needle bearing outer ring or breakage; Make starter motor early failue, when serious, damaged outer ring is fallen in reducing gear; Be stuck between planet wheel and the ring gear, cause armature under the energising situation, to be stuck to rotate and burn out starter motor, can't guarantee that require to use with normal the working life of starter motor.
Summary of the invention
In order to overcome above-mentioned defective; The purpose of the utility model is to provide a kind of roller bearing structure that is used for planet deceleration starter; This structure is that cancellation is installed in the band outer ring needle bearing on center-wheel arbor and the planet wheel shaft, forms the roller bearing structure of no Internal and external cycle.
To achieve these goals; The utility model adopts following technological scheme: a kind of roller bearing structure that is used for planet deceleration starter; Described roller bearing structure comprises center-wheel arbor or planet wheel cylinder axis; Arrange a plurality of central gear rollers at the outer surface of center-wheel arbor, the opposite side of said central gear roller contacts with planet axis; Arrange a plurality of planet wheel rollers at the outer surface of planet wheel cylinder axis, the opposite side of said planet wheel roller contacts with planet wheel.
Said central gear roller or planet wheel roller be contact each other in twos.
Said central gear roller or planet wheel roller connect through retainer in twos each other.
The beneficial effect of the utility model
The key technology of the utility model is with the needle bearing that does not replace the band outer ring with the roller bearing of Internal and external cycle, because the space has been abdicated in no outer ring, has strengthened the roller diameter, has improved the bearing capacity of roller; Owing to there is not the outer ring, reduced number of spare parts, the outer ring conquassation of having avoided outer ring heat treatment not reach requiring and cause was lost efficacy, and had improved the working life and the reliability of planet deceleration starter greatly.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the sectional drawing of no retainer in the utility model roller bearing structure.
Fig. 3 is for there being the sectional drawing of retainer in the utility model roller bearing structure.
Embodiment
Embodiment 1
In conjunction with attaching Fig. 1 and 2; Situation to no retainer in the utility model middle (center) bearing structure details: a kind of roller bearing structure that is used for planet deceleration starter; Described roller bearing structure comprises center-wheel arbor 1 or planet wheel cylinder axis 2; Arrange a plurality of central gear rollers 4 at the outer surface of center-wheel arbor 1, the opposite side of said central gear roller 4 contacts with planet axis 3; Arrange a plurality of planet wheel rollers 5 at the outer surface of planet wheel cylinder axis 2, the opposite side of said planet wheel roller 5 contacts with planet wheel 6.Said central gear roller 4 or planet wheel roller 5 be contact each other in twos.
Embodiment 2
In conjunction with accompanying drawing 1 and 3; To having the situation of retainer to detail in the utility model middle (center) bearing structure: a kind of roller bearing structure that is used for planet deceleration starter; Described roller bearing structure comprises center-wheel arbor 1 or planet wheel cylinder axis 2; Arrange a plurality of central gear rollers 4 at the outer surface of center-wheel arbor 1, the opposite side of said central gear roller 4 contacts with planet axis 3; Arrange a plurality of planet wheel rollers 5 at the outer surface of planet wheel cylinder axis 2, the opposite side of said planet wheel roller 5 contacts with planet wheel 6.Said central gear roller 4 or planet wheel roller 5 connect through retainer 7 in twos each other.
Claims (3)
1. roller bearing structure that is used for planet deceleration starter; Described roller bearing structure comprises center-wheel arbor (1) or planet wheel cylinder axis (2); It is characterized in that: arrange a plurality of central gear rollers (4) at the outer surface of center-wheel arbor (1), the opposite side of said central gear roller (4) contacts with planet axis (3); Arrange a plurality of planet wheel rollers (5) at the outer surface of planet wheel cylinder axis (2), the opposite side of said planet wheel roller (5) contacts with planet wheel (6).
2. the roller bearing structure that is used for planet deceleration starter according to claim 1 is characterized in that: said central gear roller (4) or planet wheel roller (5) be contact each other in twos.
3. the roller bearing structure that is used for planet deceleration starter according to claim 1 is characterized in that: said central gear roller (4) or planet wheel roller (5) connect through retainer (7) in twos each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201068084U CN202520773U (en) | 2012-03-21 | 2012-03-21 | Roller bearing structure for planetary gear-reduction starter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201068084U CN202520773U (en) | 2012-03-21 | 2012-03-21 | Roller bearing structure for planetary gear-reduction starter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202520773U true CN202520773U (en) | 2012-11-07 |
Family
ID=47103725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201068084U Expired - Fee Related CN202520773U (en) | 2012-03-21 | 2012-03-21 | Roller bearing structure for planetary gear-reduction starter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202520773U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619873A (en) * | 2012-03-21 | 2012-08-01 | 刘宏伟 | Roller bearing structure for planetary reduction starter |
-
2012
- 2012-03-21 CN CN2012201068084U patent/CN202520773U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619873A (en) * | 2012-03-21 | 2012-08-01 | 刘宏伟 | Roller bearing structure for planetary reduction starter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20180321 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |