CN203486029U - Spare tire lifter - Google Patents
Spare tire lifter Download PDFInfo
- Publication number
- CN203486029U CN203486029U CN201320566904.1U CN201320566904U CN203486029U CN 203486029 U CN203486029 U CN 203486029U CN 201320566904 U CN201320566904 U CN 201320566904U CN 203486029 U CN203486029 U CN 203486029U
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- CN
- China
- Prior art keywords
- cycloid
- banking stop
- lock banking
- inner gear
- spare tyre
- 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.)
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Abstract
The utility model relates to the field of manufacturing of automobiles, and particularly discloses a spare tire lifter. The spare tire lifter comprises a shell body, a cam shaft, a cycloid outer gear, a cycloid inner gear and a locking piece, wherein the cycloid outer gear is arranged on a round shaft of the cam shaft, the cycloid inner gear is arranged on a cam of the cam shaft, the cycloid outer gear is meshed with the cycloid inner gear, the number of teeth of the cycloid outer gear is larger than the number of teeth of the cycloid inner gear, the locking piece is fixed to the cycloid inner gear, the locking piece is provided with a rolling mechanism, and the locking piece makes contact with the shell body in a rolling mode through the rolling mechanism. According to the spare tire lifter, the locking piece makes contact with the shell body in a rolling mode, the problem of early damage of the spare tire lifter caused by excessive wear between the locking piece and the shell body is avoided, the problem that the spare tire lifter can not be normally used due to the clamping stagnation between the locking piece and the shell body is avoided, the resistance between the locking piece and the shell body is reduced in the working process of the spare tire lifter, more labor is saved when the spare tire lifter is operated, and the working efficiency is higher.
Description
Technical field
The utility model relates to automobile manufacturing field, relates in particular to a kind of for the fastening spare tyre lifter of automobile spare tire.
Background technology
Spare tyre assembly (abbreviation spare tyre) is an indispensable part on automobile, at present, the spare tyre lifter that overwhelming majority vehicle uses is all by camshaft, cycloidal gear rotating mechanism (cycloid external gear and cycloid inner gear) and lock banking stop to be fixed in housing, as Fig. 1, shown in 2, camshaft 8 drives the cycloid inner gear 11 and the lock banking stop 12 that are fixed together to rotate when rotated, after lock banking stop 12 contacts with housing 9 under the resistance of housing 9, make cycloid inner gear 11 stop rotation, now, by the gear teeth in cycloid 11, rotational force is passed to cycloid external gear 10, 10 rotations of cycloid external gear, thereby drive chain and spare tyre motion.The rotary spare tyre lifter of manual machine is as the product of current automobile widespread use, and the quality of its serviceability becomes the emphasis that people pay close attention to, so spare tyre lifter should guarantee that the phenomenons such as clamping stagnation occur flexibly and not in rotation in the course of the work.
But, above-mentioned spare tyre lifter is in spare tyre lifting process, lock banking stop directly contacts with housing, and produce relative sliding, make spare tyre lifter rotate underaction, and this relative sliding very easily causes the undue wear of lock banking stop or housing, thereby cause the generation of the phenomenons such as clamping stagnation or earlier period damage.
Utility model content
(1) technical matters that will solve
The purpose of this utility model is to provide a kind of spare tyre lifter, to overcome lock banking stop and the housing moving contact of spare tyre lifter in prior art, the problems such as the spare tyre lifter underaction causing and lock banking stop or the easy undue wear of housing.
(2) technical scheme
In order to solve the problems of the technologies described above, the utility model provides a kind of spare tyre lifter, comprise housing, camshaft, cycloid external gear, cycloid inner gear and lock banking stop, described cycloid external gear is located on the circular shaft of camshaft, described cycloid inner gear is located on the cam of camshaft, in described cycloid external gear and cycloid inner gear, the number of teeth of engagement and cycloid external gear is greater than the number of teeth of cycloid inner gear, described lock banking stop is fixed on cycloid inner gear, described lock banking stop rolling mechanism, described lock banking stop is rolled and contacts with housing by described rolling mechanism.
Preferably, described rolling mechanism is bearing.
Preferably, described bearing is connected on lock banking stop by flathead screw.
Preferably, described lock banking stop is shaped as rectangle.
Preferably, described lock banking stop is provided with two bearings, and described bearing is located at two drift angle places that rectangle lock banking stop is adjacent.
Preferably, the number of teeth of the ratio of number of teeth cycloid inner gear of described cycloid external gear is many one.
(3) beneficial effect
The lock banking stop of spare tyre lifter of the present utility model is provided with rolling mechanism, make by rolling mechanism, to roll and contact between lock banking stop and housing, cancelled the moving contact between lock banking stop and housing in prior art, avoided the earlier period damage problem of the spare tyre lifter that causes because of the undue wear between lock banking stop and housing, the problem that the spare tyre lifter of having avoided causing because of the clamping stagnation between lock banking stop and housing cannot normally be used, reduced the resistance between lock banking stop and housing in spare tyre lifter working process, spare tyre lifter is operated more laborsaving, work efficiency is higher, simultaneously, spare tyre lifter of the present utility model is simple in structure, good reliability, failure rate is low, reduced the maintenance cost of automobile.
Accompanying drawing explanation
Fig. 1 is the side-looking constructional drawing of the spare tyre lifter of prior art;
Fig. 2 is the side view cutaway drawing of the spare tyre lifter of prior art;
Fig. 3 is the side-looking constructional drawing of the spare tyre lifter of the utility model embodiment;
Fig. 4 is the side view cutaway drawing of the spare tyre lifter of the utility model embodiment;
Fig. 5 is the backsight constructional drawing of the spare tyre lifter of the utility model embodiment.
In figure, 1: camshaft; 2: housing; 3: cycloid external gear; 4: cycloid inner gear; 5: lock banking stop; 6: bearing; 7: flathead screw; 8: camshaft; 9: housing; 10: cycloid external gear; 11: cycloid inner gear; 12: lock banking stop.
The specific embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for illustrating the utility model, but can not be used for limiting scope of the present utility model.
As in Figure 3-5, the spare tyre lifter of the present embodiment comprises camshaft 1, housing 2, cycloid external gear 3, cycloid inner gear 4, lock banking stop 5 and rolling mechanism.
Cycloid external gear 3 is enclosed within the circular shaft part of camshaft 1, and camshaft 1 is rotated relatively, one end of cycloid external gear 3 is provided with the chain that a circle recess is used for being wound around lifting spare tyre, the other end is the gear ring that is provided with internal tooth, cycloid inner gear 4 is enclosed within on the cam portion of camshaft 1, its can with cam around the axis of camshaft 1 rotate (revolution) also relatively cam be rotated (rotation), cycloid inner gear 4 is positioned at the inner side of cycloid external gear 3 and carries out engagement with cycloid external gear 3, wherein, the number of teeth of cycloid external gear 3 is greater than the number of teeth of cycloid inner gear 4, the present embodiment is preferably many one of the number of teeth of the ratio of number of teeth cycloid inner gear 4 of cycloid external gear 3, its concrete number of teeth and the number of teeth specifically having more should suitably be adjusted according to actual conditions, lock banking stop 5 is also enclosed within on camshaft 1 and is fixed on the outside of cycloid inner gear 4, it can be with cycloid inner gear 4 with respect to camshaft 1 rotation, cycloid external gear 3, cycloid inner gear 4 and lock banking stop 5 are all fixed on housing 2 inside by camshaft 1, camshaft 1 can rotate with respect to housing 2.
The lock banking stop 5 of the spare tyre lifter of the present embodiment be shaped as rectangle, two adjacent drift angle places of described rectangle lock banking stop 5 are provided with rolling mechanism, rolling mechanism is preferably bearing 6, bearing 6 is connected on lock banking stop 5 by flathead screw 7, and can be relative to rotating with lock banking stop 5, at lock banking stop 5, in the process of camshaft 1 rotation, lock banking stop 5 is rolled and contacts with housing 2 by bearing 6.Rolling mechanism also can be selected other installation composition, as roller coordinates with rotating shaft or roll structure etc.
The principle of work of the spare tyre lifter of the present embodiment is: when needs lifting spare tyre, controlling camshaft 1 rotates, camshaft 1 band dynamic cycloid inner gear 4 rotates, cycloid inner gear 4 when camshaft 1 axis rotates with the interior engagement of cycloid external gear 3, in the inside of cycloid external gear 3, along its internal tooth, the axis around cycloid external gear 3 rotates cycloid inner gear 4, because cycloid external gear 3 is being wound around chain, to cycloid external gear 3, there is certain control in chain, so cycloid inner gear 4 is after meshing with cycloid external gear 3, himself is also rotated; In process at lock banking stop 5 with 4 revolution of cycloid inner gear and rotation, after bearing 6 and housing 2 rolls and contacts, by the respective outer side edges of lock banking stop 5 and housing, lock banking stop 5 has hindered the rotation (rotation) of cycloid inner gear 4 around the cam of camshaft 1, now, due to the interior meshing relation of cycloid inner gear 4 with cycloid external gear 3, cycloid inner gear 4 is controlled cycloid external gear 3 and is rotated around the axis of camshaft 1, thereby drives chain to make spare tyre realize the function that rises or fall.
The lock banking stop of spare tyre lifter of the present utility model is provided with rolling mechanism, make by rolling mechanism, to roll and contact between lock banking stop and housing, cancelled the moving contact between lock banking stop and housing in prior art, avoided the earlier period damage problem of the spare tyre lifter that causes because of the undue wear between lock banking stop and housing, the problem that the spare tyre lifter of having avoided causing because of the clamping stagnation between lock banking stop and housing cannot normally be used, reduced the resistance between lock banking stop and housing in spare tyre lifter working process, spare tyre lifter is operated more laborsaving, work efficiency is higher, simultaneously, spare tyre lifter of the present utility model is simple in structure, good reliability, failure rate is low, reduced the maintenance cost of automobile.
Embodiment of the present utility model provides for example with for the purpose of describing, and is not exhaustively or by the utility model to be limited to disclosed form.Many modifications and variations are apparent for the ordinary skill in the art.Selecting and describing embodiment is for better explanation principle of the present utility model and practical application, thereby and makes those of ordinary skill in the art can understand the various embodiment with various modifications that the utility model design is suitable for special-purpose.
Claims (6)
1. a spare tyre lifter, comprise housing, camshaft, cycloid external gear, cycloid inner gear and lock banking stop, described cycloid external gear is located on the circular shaft of camshaft, described cycloid inner gear is located on the cam of camshaft, in described cycloid external gear and cycloid inner gear, the number of teeth of engagement and cycloid external gear is greater than the number of teeth of cycloid inner gear, described lock banking stop is fixed on cycloid inner gear, it is characterized in that, described lock banking stop rolling mechanism, described lock banking stop is rolled and contacts with housing by described rolling mechanism.
2. spare tyre lifter according to claim 1, is characterized in that, described rolling mechanism is bearing.
3. spare tyre lifter according to claim 2, is characterized in that, described bearing is connected on lock banking stop by flathead screw.
4. spare tyre lifter according to claim 1, is characterized in that, described lock banking stop be shaped as rectangle.
5. spare tyre lifter according to claim 4, is characterized in that, described lock banking stop is provided with two bearings, and described bearing is located at two drift angle places that rectangle lock banking stop is adjacent.
6. according to the spare tyre lifter described in any one in claim 1-5, it is characterized in that many one of the number of teeth of the ratio of number of teeth cycloid inner gear of described cycloid external gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320566904.1U CN203486029U (en) | 2013-09-12 | 2013-09-12 | Spare tire lifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320566904.1U CN203486029U (en) | 2013-09-12 | 2013-09-12 | Spare tire lifter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203486029U true CN203486029U (en) | 2014-03-19 |
Family
ID=50256876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320566904.1U Expired - Lifetime CN203486029U (en) | 2013-09-12 | 2013-09-12 | Spare tire lifter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203486029U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105035191A (en) * | 2015-07-07 | 2015-11-11 | 北京长安汽车工程技术研究有限责任公司 | Spare tire lifter and car |
| CN107651028A (en) * | 2017-09-25 | 2018-02-02 | 安徽江淮汽车集团股份有限公司 | A kind of spare tyre lifter |
-
2013
- 2013-09-12 CN CN201320566904.1U patent/CN203486029U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105035191A (en) * | 2015-07-07 | 2015-11-11 | 北京长安汽车工程技术研究有限责任公司 | Spare tire lifter and car |
| CN107651028A (en) * | 2017-09-25 | 2018-02-02 | 安徽江淮汽车集团股份有限公司 | A kind of spare tyre lifter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140319 |