CN101983549B - Gear case for grass cutter - Google Patents
Gear case for grass cutter Download PDFInfo
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- CN101983549B CN101983549B CN2010105275727A CN201010527572A CN101983549B CN 101983549 B CN101983549 B CN 101983549B CN 2010105275727 A CN2010105275727 A CN 2010105275727A CN 201010527572 A CN201010527572 A CN 201010527572A CN 101983549 B CN101983549 B CN 101983549B
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- gear
- input shaft
- power input
- box
- wheel disc
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Abstract
The invention relates to a gear case for a grass cutter, which includes a gear case body, a power input shaft, and a power output shaft, one end of the power input shaft is located in the gear case body while another end thereof is installed at periphery of the gear case body, then power input shaft end in the gear case body is provided with a driven gear disk, one end of the power output shaft is installed in the gear case body while another end thereof is installed at periphery of the gear case body, and the power output shaft end in the gear case body is provided with a gear matched with the gear on the driven gear disk, the driven gear disk is centrally provided with an installation through hole, an inner wall of the installation through hole is provided with a jugged limit slot, an installation end, used for installing the driven gear disk, of the power input shaft is equipped with an accepting groove matched with the jugged limit slot, a special limit block is installed between the accepting groove and the jugged limit slot, and an elastic body is installed between the special limit block and the accepting slot. The gear case for the grass cutter cannot have damage on the gear at the end of the power input shaft and the gear at the end o9f the power output shaft caused by inertia, so that service life of the gear is prolonged, and service life of the gear case is correspondingly prolonged.
Description
Technical field
The present invention relates to a kind of gear-box, be specifically related to a kind of mowing machine and use gear-box.
Background technique
Gear-box specifically comprise following effect: acceleration-deceleration is exactly the speed-change gear box of often saying; Change transmission direction, for example we can be with the power vertical transmission to another rotatingshaft with two tooth sector; Change moment of rotation, under the equal power condition, the fast more gear that speed is changeed, a suffered moment is more little, otherwise big more; Clutch function, we can reach the purpose of separating motor and load through two meshed gears originally separately, such as brake clutch etc.; Distributed power, for example we can use a motor, and are a plurality of from axle through the drive of gear-box main shaft, thereby realize the function of a plurality of loads of engine drives.
And the gear-box of mowing machine had both had the raising speed function, had the function that changes transmission direction again, and the gear-box of existing mowing machine comprises gear housing, power input shaft, pto; And the bevel gear that is fixedly installed on the power input shaft end; And being fixed on the angular wheel that matches with the bevel gear of power input shaft end in the pto end, such drive mechanism is when operation control system stops operating power input shaft; The bevel gear of power input shaft end also stops operating simultaneously; And because the existence of inertia, the angular wheel of pto end also can be rotated further, with the bevel gear generation bump of power input shaft end; Thereby can cause the gear of power input shaft end, one of them perhaps both damage of gear of pto end, thereby the working life of having reduced gear-box.
Summary of the invention
To above-mentioned technical problem, the purpose of this invention is to provide a kind of mowing machine and use gear-box, it can be avoided under the situation of power input shaft stall, owing to inertia causes the damage to the gear housing internal gear, thus the working life of prolongation gear-box.
Realize that technological scheme of the present invention is following:
Mowing machine is used gear-box; Comprise gear housing, power input shaft, pto, an end of power input shaft is positioned at gear housing, and the other end is positioned at the outside of gear housing; The power input shaft end that is positioned at gear housing is provided with the driven tooth wheel disc; One end of pto is positioned at gear housing, and the other end is positioned at the outside of gear housing, the pto end that is positioned at gear housing be provided with the driven tooth wheel disc on the gear that matches of the gear teeth; Said driven tooth wheel disc middle part has installation through holes; The installation through holes inwall offers two profile of tooth restraining grooves at least, and the mounting end that said power input shaft is installed the driven tooth wheel disc offers the containing groove that matches with the profile of tooth restraining groove, and containing groove is identical with the number of profile of tooth restraining groove; Be provided with special-shaped limiting stopper between said containing groove and the profile of tooth restraining groove, be provided with elastomer between special-shaped limiting stopper and the containing groove.
Further; Said special-shaped limiting stopper upper end portion is a dentation; It cooperates with the profile of tooth restraining groove; Abnormity limiting stopper lower end is positioned at containing groove and the lower end surface offers breach, and said elastomer is arranged between breach and the containing groove bottom land, through elastomer special-shaped limiting stopper is held out against between containing groove and profile of tooth restraining groove.So special-shaped limiting stopper just is fastened between special-shaped limiting stopper, the containing groove.When power input shaft rotated transmission, special-shaped limiting stopper drove the driven tooth wheel disc and rotates, and also began to rotate with gear on the pto that the gear teeth on the driven tooth wheel disc match, and through pto transmission of power was gone out; Because the girth of driven tooth wheel disc is far longer than the gear girth of pto end, therefore reach the purpose of raising speed.
Further, said profile of tooth restraining groove is distributed on driven tooth wheel disc installation through holes inwall, and containing groove is distributed on the mounting end that power input shaft is installed the driven tooth wheel disc.Can guarantee that like this power input shaft is arranged in the driven tooth wheel disc installation through holes reposefully.
Further, for guarantee the power input shaft transmission steadily and to the sealing of gear housing, be provided with Box Cover in said gear housing one side, power input shaft passes Box Cover, is provided with bearing and sealing cover between power input shaft and the Box Cover.
Further, in order to guarantee that pto can come out power transmission stably and to the sealing of gear housing, between said pto and the mounting hole of gear housing at pto, be provided with bearing and sealing lid.
Further, said driven tooth wheel disc is a bevel gear, and the gear of said pto end is the straight-tapered gear.Power input shaft, pto vertically are provided with, and the gear that is arranged on driven tooth wheel disc, the pto end of power input shaft end can reach the purpose that changes transmission direction with the power vertical transmission on the power input shaft to pto.
Further, said elastomer is a shell fragment.
Further, said elastomer is a spring.
Adopt such scheme; The profile of tooth restraining groove is distributed on the installation through holes inwall; Containing groove is distributed on the mounting end that power input shaft is installed the driven tooth wheel disc, is provided with special-shaped limiting stopper between containing groove and the profile of tooth restraining groove, and special-shaped limiting stopper lower end is positioned at containing groove and the lower end surface offers breach; Elastomer is arranged between breach and the containing groove bottom land, through elastomer special-shaped limiting stopper is held out against between containing groove and profile of tooth restraining groove.When power input shaft rotates transmission; Because special-shaped limiting stopper is fastened in containing groove and the profile of tooth restraining groove; Thereby the driven tooth wheel disc is also along with rotation; Thereby also begin to rotate with the gear on the pto that the gear teeth on the driven tooth wheel disc match, and transmission of power is gone out through pto; And work as operation control system; When making power input shaft stop operating transmission, because the existence of inertia, the driven tooth wheel disc on the power input shaft also can be rotated further; This moment special-shaped limiting stopper tooth-like part will receive the driven tooth wheel disc the spacing cell wall of profile of tooth rotating force and be compressed; No longer be fastened in the profile of tooth restraining groove, also just do not play the effect spacing, thereby the driven tooth wheel disc dally on power input shaft under action of inertia the driven tooth wheel disc; And the straight-tapered gear on the pto still rotates, and can not produce impact.And when power input shaft rotated once more, elastomer can be got back to the tooth-like part top of special-shaped limiting stopper in the profile of tooth restraining groove, realized the continuation transmission of driven tooth wheel disc; Thereby use the present invention with regard to the power input shaft end gear that can not occur causing owing to inertia in the existing technology, the damage of pto end gear, thus prolong the working life of gear, also just prolonged the working life of gear-box.
Description of drawings
Fig. 1 is that installation of the present invention splits structural representation;
The structural representation that Fig. 2 cooperates with the driven tooth wheel disc for medium power input shaft of the present invention;
In the accompanying drawing, 1 is gear housing, and 2 is power input shaft, and 3 is pto, and 4 is the driven tooth wheel disc, and 5 is installation through holes; 6 is gear, and 7 is the profile of tooth restraining groove, and 8 is containing groove, and 9 is special-shaped limiting stopper, and 10 is elastomer; 11 is breach, and 12 is Box Cover, and 13 is bearing, and 14 is sealing cover, and 15 is mounting hole; 16 is bearing, and 17 are the sealing lid, and 18 is bearing, and 19 is sealing cover, and 20 is the mounting end of driven tooth wheel disc.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is further specified.
Referring to Fig. 1, shown in 2, mowing machine is used gear-box, comprises gear housing 1, power input shaft 2, pto 3; One end of power input shaft 2 is positioned at gear housing 1, and the other end is positioned at the outside of gear housing 1, and the power input shaft end that is positioned at gear housing is provided with driven tooth wheel disc 4; And the power input shaft end that is positioned at gear housing is arranged on gear housing through bearing 18; And the sealing cover 19 that bearing 18 is sealed, an end of pto 3 is positioned at gear housing, and the other end is positioned at the outside of gear housing; The pto end that is positioned at gear housing be provided with driven tooth wheel disc 4 on the gear 6 that matches of the gear teeth; Driven tooth wheel disc 4 middle parts have installation through holes 5, and installation through holes 5 inwalls offer two profile of tooth restraining grooves 7, and the mounting end that power input shaft 2 is installed the driven tooth wheel disc also offers two containing grooves 8 that match with the profile of tooth restraining groove; Be provided with special-shaped limiting stopper 9 between containing groove 8 and the profile of tooth restraining groove 7; Be provided with elastomer 10 between abnormity limiting stopper 9 and the containing groove 8, in the present embodiment, elastomer is selected shell fragment for use.Abnormity limiting stopper 9 upper end portions are dentation, and it cooperates with the profile of tooth restraining groove, and special-shaped limiting stopper lower end is positioned at containing groove and the lower end surface offers breach 11, and elastomer 10 is arranged between breach and containing groove 8 bottom lands.
Two profile of tooth restraining grooves 7 are distributed on driven tooth wheel disc installation through holes 5 inwalls, and two containing grooves 8 are distributed on the mounting end 20 that power input shaft is installed the driven tooth wheel disc, guarantee that power input shaft is arranged in the driven tooth wheel disc installation through holes reposefully.Certainly, the profile of tooth restraining groove and with its accordingly the containing groove number can also be arranged to three, four, five, six or the like, as long as power input shaft is arranged in the driven tooth wheel disc installation through holes reposefully.
Gear housing one side is provided with Box Cover 12, and power input shaft 2 passes Box Cover 12, is provided with bearing 13 and sealing cover 14 between power input shaft and the Box Cover.Pto 3 and gear housing 1 are provided with bearing 16 and sealing lid 17 between the mounting hole 15 of pto, can guarantee that like this power input shaft, pto carry out transmission reposefully, and the sealing in the gear housing.
In the present embodiment, driven tooth wheel disc 4 is a bevel gear, and the gear 6 of pto end is the straight-tapered gear.
Above mode of execution is not a limitation of the present invention, and the scope of the present invention's protection includes but not limited to above mode of execution, and any improvement of on basis of the present invention, carrying out all belongs to the scope of the present invention's protection.
Claims (8)
1. mowing machine is used gear-box; Comprise gear housing, power input shaft, pto, an end of power input shaft is positioned at gear housing, and the other end is positioned at the outside of gear housing; The power input shaft end that is positioned at gear housing is provided with the driven tooth wheel disc; One end of pto is positioned at gear housing, and the other end is positioned at the outside of gear housing, the pto end that is positioned at gear housing be provided with the driven tooth wheel disc on the gear that matches of the gear teeth; It is characterized in that: said driven tooth wheel disc middle part has installation through holes; The installation through holes inwall offers two profile of tooth restraining grooves at least, and the mounting end that said power input shaft is installed the driven tooth wheel disc offers the containing groove that matches with the profile of tooth restraining groove, and containing groove is identical with the number of profile of tooth restraining groove; Be provided with special-shaped limiting stopper between said containing groove and the profile of tooth restraining groove, be provided with elastomer between special-shaped limiting stopper and the containing groove.
2. mowing machine according to claim 1 is used gear-box; It is characterized in that: said special-shaped limiting stopper upper end portion is a dentation; It cooperates with the profile of tooth restraining groove, and special-shaped limiting stopper lower end is positioned at containing groove and the lower end surface offers breach, and said elastomer is arranged between breach and the containing groove bottom land.
3. mowing machine according to claim 1 is used gear-box, it is characterized in that: said profile of tooth restraining groove is distributed on driven tooth wheel disc installation through holes inwall, and containing groove is distributed on the mounting end that power input shaft is installed the driven tooth wheel disc.
4. mowing machine according to claim 1 is used gear-box, it is characterized in that: said gear housing one side is provided with Box Cover, and power input shaft passes Box Cover, is provided with bearing and sealing cover between power input shaft and the Box Cover.
5. mowing machine according to claim 1 is used gear-box, it is characterized in that: said pto and gear housing are provided with bearing and sealing lid between the mounting hole of pto.
6. mowing machine according to claim 1 is used gear-box, it is characterized in that: said driven tooth wheel disc is a bevel gear, and the gear of said pto end is the straight-tapered gear.
7. use gear-box according to each described mowing machine among the claim 1-6, it is characterized in that: said elastomer is a shell fragment.
8. use gear-box according to each described mowing machine among the claim 1-6, it is characterized in that: said elastomer is a spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105275727A CN101983549B (en) | 2010-11-01 | 2010-11-01 | Gear case for grass cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105275727A CN101983549B (en) | 2010-11-01 | 2010-11-01 | Gear case for grass cutter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101983549A CN101983549A (en) | 2011-03-09 |
| CN101983549B true CN101983549B (en) | 2012-05-09 |
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ID=43640711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105275727A Active CN101983549B (en) | 2010-11-01 | 2010-11-01 | Gear case for grass cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101983549B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104756676A (en) * | 2015-01-07 | 2015-07-08 | 广德迪发机械有限公司 | Logarithmic curve arc wave straight corrugation powder metallurgy manufacturing method for gear case of lawn mower |
| CN111684877B (en) * | 2020-06-24 | 2022-09-02 | 六安市叶集区兴硕果业有限责任公司 | Agricultural weeder with prevent weeds regeneration |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4209964A (en) * | 1978-05-30 | 1980-07-01 | Outboard Marine Corporation | Two-speed forward and reverse self-propel system for walk-behind mowers |
| CN200947749Y (en) * | 2006-09-29 | 2007-09-19 | 玉环锐意机械制造有限公司 | Drive reduction gearbox of a mower in lawn |
| CN201246460Y (en) * | 2008-08-19 | 2009-05-27 | 南昌江铃集团协和传动技术有限公司 | Gear box assembly of stepless twist increasing mechanism |
| CN101836540A (en) * | 2009-03-19 | 2010-09-22 | 陈建水 | Cropper gear box |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3376596B2 (en) * | 1992-02-21 | 2003-02-10 | 井関農機株式会社 | Speed change gear for walking lawn mower |
| CN201860595U (en) * | 2010-11-01 | 2011-06-15 | 常州汉森机械有限公司 | Gear box for mower |
-
2010
- 2010-11-01 CN CN2010105275727A patent/CN101983549B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4209964A (en) * | 1978-05-30 | 1980-07-01 | Outboard Marine Corporation | Two-speed forward and reverse self-propel system for walk-behind mowers |
| CN200947749Y (en) * | 2006-09-29 | 2007-09-19 | 玉环锐意机械制造有限公司 | Drive reduction gearbox of a mower in lawn |
| CN201246460Y (en) * | 2008-08-19 | 2009-05-27 | 南昌江铃集团协和传动技术有限公司 | Gear box assembly of stepless twist increasing mechanism |
| CN101836540A (en) * | 2009-03-19 | 2010-09-22 | 陈建水 | Cropper gear box |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平5-231504A 1993.09.07 |
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| Publication number | Publication date |
|---|---|
| CN101983549A (en) | 2011-03-09 |
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Address after: 213034 No. 19 Tongjiang North Road, Chunjiang Town, Xinbei District, Changzhou City, Jiangsu Province Patentee after: Changzhou Hansen Machinery Co., Ltd. Address before: 213034 No. 19 Tongjiang North Road, Chunjiang Town, Xinbei District, Changzhou City, Jiangsu Province Patentee before: Changzhou Hansen Machinery Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |