CN203239888U - Mini-tiller and speed changing box main shaft assembly thereof - Google Patents
Mini-tiller and speed changing box main shaft assembly thereof Download PDFInfo
- Publication number
- CN203239888U CN203239888U CN 201320228462 CN201320228462U CN203239888U CN 203239888 U CN203239888 U CN 203239888U CN 201320228462 CN201320228462 CN 201320228462 CN 201320228462 U CN201320228462 U CN 201320228462U CN 203239888 U CN203239888 U CN 203239888U
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- main shaft
- shaft assembly
- keyway
- speed changing
- utility
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Abstract
The utility model discloses a speed changing box main shaft assembly. The speed changing box main shaft assembly comprises a main shaft, wherein a gear and a chain wheel are arranged on the main shaft in a sleeved mode, a first key groove is formed in the inner surface of the gear, a second key groove matched with the first key groove is formed in the periphery of the main shaft, and a flat key is installed between the first key groove and the second key groove in an inserted mode. In the working process, due to the fact that a key-connecting assembling structure is adopted, the mechanical transmission between the mains shaft and the gear is more stable, the slipping phenomenon does not occur easily, and the speed changing box main shaft assembly is more stable and more reliable in the overall working process. The utility model further discloses a mini-tiller to which the speed changing box main shaft assembly is applied, the slipping phenomenon does not easily occur to the speed changing box main shaft assembly of the mini-tiller, and the mini-tiller is stable and reliable in the working process.
Description
Technical field
The utility model relates to Mini-tiller power systems technology field, particularly a kind of gear box of micro-cultivator main shaft.The utility model also relates to the microtilling machine of this transmission main shaft assembly of a kind of application.
Background technique
Gearbox is one of the important composition parts of the power system of microtilling machine, and main shaft then is the core component of gearbox, and along with improving constantly of user demand, people also have higher requirement to the usability of gear box of micro-cultivator main shaft assembly.
Present existing microtilling machine, the driving gear of its gearbox and sprocket wheel all be by swelling on the bearing with finish and main shaft between assembling.Yet, although the transmission main shaft of this kind assembly structure can satisfy the basic use needs of microtilling machine, because the fault such as easily skid in its working procedure, caused adverse effect to the normal operation of microtilling machine.
Therefore, how to avoid the gear box of micro-cultivator main shaft assembly that skidding partly occurs, the important technological problems that the more reliable and more stable those skilled in the art of being of its working procedure need to be solved at present.
The model utility content
The purpose of this utility model provides a kind of transmission main shaft assembly, and this transmission main shaft assembly is difficult for skidding occurs, and its working procedure is comparatively reliable and stable.Another purpose of the present utility model provides a kind of microtilling machine of using above-mentioned transmission main shaft assembly.
For solving the problems of the technologies described above, the utility model provides a kind of transmission main shaft assembly, comprise main shaft, be arranged with gear and sprocket wheel on the described main shaft, has the first keyway on the internal surface of described gear, have the second keyway that matches with described the first keyway on the outer circumferential face of described main shaft, be fitted with flat key between described the first keyway and described the second keyway.
Preferably, be provided with the first spline on the outer circumferential face of described main shaft, be provided with second spline suitable with described the first spline on the described sprocket wheel.
Preferably, described the first spline and described the second spline all are specially involute splines.
The utility model also provides a kind of microtilling machine, comprises gearbox, is provided with the transmission main shaft assembly in the described gearbox, and described transmission main shaft assembly is specially such as above-mentioned each described transmission main shaft assembly.
Relative above-mentioned background technology, transmission main shaft assembly provided by the utility model, comprise main shaft, be arranged with gear and sprocket wheel on the described main shaft, has the first keyway on the internal surface of described gear, have the second keyway that matches with described the first keyway on the outer circumferential face of described main shaft, be fitted with flat key between described the first keyway and described the second keyway.In the working procedure, because the assembly structure that the key that adopts connects so that the mechanical transmission course between described main shaft and described gear is more stable, is difficult for occuring skidding, thereby so that the overall work process of described transmission main shaft assembly is more steadily reliable.
In another preferred version of the present utility model, be provided with the first spline on the outer circumferential face of described main shaft, be provided with second spline suitable with described the first spline on the described sprocket wheel.The assembly structure of this kind spline joint will be adopted between described sprocket wheel and described main shaft, can make the more stable transmission between described sprocket wheel and described main shaft effective, avoid it that skidding occurs, thereby so that the overall operation reliability of described transmission main shaft assembly is able to further raising.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The assembly structure schematic diagram of the gear box of micro-cultivator main shaft assembly that Fig. 1 provides for a kind of embodiment of the utility model.
Embodiment
Core of the present utility model provides a kind of transmission main shaft assembly, and this transmission main shaft assembly is difficult for skidding occurs, and its working procedure is comparatively reliable and stable; Simultaneously, provide a kind of microtilling machine of using above-mentioned transmission main shaft assembly.
In order to make those skilled in the art person understand better the utility model scheme, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 1, the assembly structure schematic diagram of the gear box of micro-cultivator main shaft assembly that Fig. 1 provides for a kind of embodiment of the utility model.
In embodiment, transmission main shaft assembly provided by the utility model, comprise main shaft 11, be arranged with gear 12 and sprocket wheel 13 on the main shaft 11, has the first keyway 121 on the internal surface of gear 12, have on the outer circumferential face of main shaft 11 between the second keyway 111, the first keyways 121 of matching with the first keyway 121 and the second keyway 111 and be fitted with the flat key (not shown).In the working procedure, because the assembly structure that the key that adopts connects, so that the mechanical transmission course of 12 of main shaft 11 and gears is more stable, be difficult for occuring skidding, thereby so that the overall work process of described transmission main shaft assembly more steadily not reliably.
Further, be provided with the first spline 112 on the outer circumferential face of main shaft 11, be provided with second spline 131 suitable with the first spline 112 on the sprocket wheel 13.With sprocket wheel 13 and 11 assembly structures that adopt this kind spline joint of main shaft, can make the more stable transmission of 11 on sprocket wheel 13 and main shaft effective, avoid it that skidding occurs, thereby so that the overall operation reliability of described transmission main shaft assembly is able to further raising.
More specifically, the first spline 112 and the second spline 131 all are specially involute splines.This kind involute splines can further improve the transmission efficiency of 11 on sprocket wheel 13 and main shaft, and so that the whole work efficiency of described transmission main shaft assembly is able to corresponding raising.
In embodiment, microtilling machine provided by the utility model comprises gearbox, is provided with the transmission main shaft assembly in the described gearbox, and described transmission main shaft assembly is specially the as mentioned described transmission main shaft assembly of each embodiment.The transmission main shaft assembly of described microtilling machine is difficult for skidding occurs, and its working procedure is comparatively reliable and stable.
In summary, the transmission main shaft assembly that provides in the utility model, comprise main shaft, be arranged with gear and sprocket wheel on the described main shaft, has the first keyway on the internal surface of described gear, have the second keyway that matches with described the first keyway on the outer circumferential face of described main shaft, be fitted with flat key between described the first keyway and described the second keyway.In the working procedure, because the assembly structure that the key that adopts connects so that the mechanical transmission course between described main shaft and described gear is more stable, is difficult for occuring skidding, thereby so that the overall work process of described transmission main shaft assembly is more steadily reliable.
In addition, the microtilling machine of the above-mentioned transmission main shaft assembly of application provided by the utility model, its transmission main shaft assembly are difficult for skidding occurs, and its working procedure is comparatively reliable and stable.
Above transmission main shaft assembly provided by the utility model and the microtilling machine of using this transmission main shaft assembly are described in detail.Used specific case herein principle of the present utility model and mode of execution are set forth, above embodiment's explanation just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (4)
1. transmission main shaft assembly, comprise main shaft, be arranged with gear and sprocket wheel on the described main shaft, it is characterized in that: have the first keyway on the internal surface of described gear, have the second keyway that matches with described the first keyway on the outer circumferential face of described main shaft, be fitted with flat key between described the first keyway and described the second keyway.
2. transmission main shaft assembly as claimed in claim 1 is characterized in that: be provided with the first spline on the outer circumferential face of described main shaft, be provided with second spline suitable with described the first spline on the described sprocket wheel.
3. transmission main shaft assembly as claimed in claim 2, it is characterized in that: described the first spline and described the second spline all are specially involute splines.
4. a microtilling machine comprises gearbox, is provided with the transmission main shaft assembly in the described gearbox, it is characterized in that: described transmission main shaft assembly is specially such as each described transmission main shaft assembly in the claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320228462 CN203239888U (en) | 2013-04-27 | 2013-04-27 | Mini-tiller and speed changing box main shaft assembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320228462 CN203239888U (en) | 2013-04-27 | 2013-04-27 | Mini-tiller and speed changing box main shaft assembly thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203239888U true CN203239888U (en) | 2013-10-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320228462 Expired - Fee Related CN203239888U (en) | 2013-04-27 | 2013-04-27 | Mini-tiller and speed changing box main shaft assembly thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203239888U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109317278A (en) * | 2018-10-31 | 2019-02-12 | 长沙万荣粉体设备科技有限公司 | A kind of honeycomb mill |
-
2013
- 2013-04-27 CN CN 201320228462 patent/CN203239888U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109317278A (en) * | 2018-10-31 | 2019-02-12 | 长沙万荣粉体设备科技有限公司 | A kind of honeycomb mill |
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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: 20131016 Termination date: 20160427 |