CN101983549A - Gear case for grass cutter - Google Patents
Gear case for grass cutter Download PDFInfo
- Publication number
- CN101983549A CN101983549A CN 201010527572 CN201010527572A CN101983549A CN 101983549 A CN101983549 A CN 101983549A CN 201010527572 CN201010527572 CN 201010527572 CN 201010527572 A CN201010527572 A CN 201010527572A CN 101983549 A CN101983549 A CN 101983549A
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- Prior art keywords
- gear
- input shaft
- power input
- wheel disc
- storage tank
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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 mower gear-box.
Background technology
Gear-box specifically comprise following effect: acceleration-deceleration is exactly the change gear box of often saying; Change transmission direction, for example we can be with the power vertical transmission to another turning cylinder with two sector gears; Change rotating torque, 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 that engine and load are separated by two meshed gears originally separately, such as brake clutch etc.; Distributed power, for example we can be with an engine, drive by the gear-box main shaft a plurality of from axle, thereby realize that an engine drives the function of a plurality of loads.
And the gear-box of mower had both had the raising speed function, has the function that changes transmission direction again, the gear-box of existing mower comprises gear housing, power input shaft, power take-off, and the bevel gear that is fixedly installed on the power input shaft end, and be fixed on the angular wheel that matches with the bevel gear of power input shaft end in the power take-off end, such drive mechanism, when management 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 power take-off end also can be rotated further, produce bump with the bevel gear of power input shaft end, thereby can cause the gear of power input shaft end, the gear of power take-off end one of them or both damage, thus the service life of having reduced gear-box.
Summary of the invention
At above-mentioned technical problem, the purpose of this invention is to provide a kind of mower gear-box, it can be avoided under the situation of power input shaft stall, owing to inertia causes damage to the gear housing internal gear, thereby prolongs the service life of gear-box.
Realize that technical scheme of the present invention is as follows:
The mower gear-box, comprise gear housing, power input shaft, power take-off, one end of power input shaft is positioned at gear housing, 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 power take-off is positioned at gear housing, the other end is positioned at the outside of gear housing, the power take-off end that is positioned at gear housing is provided with the gear that matches with the gear teeth on the driven tooth wheel disc, described driven tooth wheel disc middle part has the installation through hole, through-hole wall is installed is offered two profile of tooth stopper slots at least, the installation end that described power input shaft is installed the driven tooth wheel disc offers the storage tank that matches with the profile of tooth stopper slot, storage tank is identical with the number of profile of tooth stopper slot, be provided with special-shaped limited block between described storage tank and the profile of tooth stopper slot, be provided with elastomer between special-shaped limited block and the storage tank.
Further, described special-shaped limited block upper end be dentation its cooperate with the profile of tooth stopper slot, abnormity limited block lower end is positioned at storage tank and the lower surface offers breach, described elastomer is arranged between breach and the storage tank bottom land, by elastomer special-shaped limited block is held out against between storage tank and profile of tooth stopper slot.So special-shaped limited block just is fastened between special-shaped limited block, the storage tank.When power input shaft rotated transmission, special-shaped limited block drove the driven tooth wheel disc and rotates, and also began to rotate with gear on the power take-off that the gear teeth on the driven tooth wheel disc match, and by power take-off transmission of power was gone out; Because the girth of driven tooth wheel disc is far longer than the gear girth of power take-off end, therefore reach the purpose of raising speed.
Further, described profile of tooth stopper slot is distributed on the driven tooth wheel disc through-hole wall is installed, and storage tank is distributed on the installation end that power input shaft is installed the driven tooth wheel disc.Can guarantee that like this power input shaft is arranged on the driven tooth wheel disc reposefully and installs in the through hole.
Further, for guarantee the power input shaft transmission steadily and to the sealing of gear housing, be provided with Box Cover in described gear housing one side, power input shaft passes Box Cover, is provided with bearing and seal cover between power input shaft and the Box Cover.
Further, in order to guarantee that power take-off can come out power transmission stably and, to be provided with bearing and sealing lid between the installing hole at power take-off at described power take-off and gear housing to the sealing of gear housing.
Further, described driven tooth wheel disc is a bevel gear, and the gear of described power take-off end is the straight-tapered gear.Power input shaft, power take-off vertically are provided with, and the gear that is arranged on driven tooth wheel disc, the power take-off 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 power take-off.
Further, described elastomer is a shell fragment.
Further, described elastomer is a spring.
Adopt such scheme, the profile of tooth stopper slot is distributed on the installation through-hole wall, storage tank is distributed on the installation end that power input shaft is installed the driven tooth wheel disc, be provided with special-shaped limited block between storage tank and the profile of tooth stopper slot, abnormity limited block lower end is positioned at storage tank and the lower surface offers breach, elastomer is arranged between breach and the storage tank bottom land, by elastomer special-shaped limited block is held out against between storage tank and profile of tooth stopper slot.When power input shaft rotates transmission, because special-shaped limited block is fastened in storage tank and the profile of tooth stopper slot, thereby the driven tooth wheel disc is also along with rotation, thereby also begin to rotate with the gear on the power take-off that the gear teeth on the driven tooth wheel disc match, and transmission of power is gone out by power take-off; And work as management system, when making power input shaft stop operating transmission, because the existence of inertia, driven tooth wheel disc on the power input shaft also can be rotated further, this moment special-shaped limited block tooth-like part will be subjected to the driven tooth wheel disc the spacing cell wall of profile of tooth revolving force and be compressed, no longer be fastened in the profile of tooth stopper slot, just do not play the effect spacing to the driven tooth wheel disc yet, thereby the driven tooth wheel disc dallies on power input shaft under action of inertia, and the straight-tapered gear on the power take-off 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 limited block in the profile of tooth stopper slot, 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 prior art, the damage of power take-off end gear, thus prolong the service life of gear, also just prolonged the service 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 power shaft of the present invention;
In the accompanying drawing, 1 is gear housing, and 2 is power input shaft, and 3 is power take-off, 4 is the driven tooth wheel disc, and 5 for installing through hole, and 6 is gear, and 7 is the profile of tooth stopper slot, 8 is storage tank, and 9 is special-shaped limited block, and 10 is elastomer, and 11 is breach, 12 is Box Cover, and 13 is bearing, and 14 is seal cover, 15 is installing hole, and 16 is bearing, and 17 are the sealing lid, 18 is bearing, and 19 is seal cover, and 20 is the installation end of driven tooth wheel disc.
Embodiment
The present invention is further described below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, shown in 2, the mower gear-box, comprise gear housing 1, power input shaft 2, power take-off 3, one end of power input shaft 2 is positioned at gear housing 1, the other end is positioned at the outside of gear housing 1, 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 by bearing 18, and the seal cover 19 that bearing 18 is sealed, one end of power take-off 3 is positioned at gear housing, the other end is positioned at the outside of gear housing, the power take-off end that is positioned at gear housing is provided with the gear 6 that matches with the gear teeth on the driven tooth wheel disc 4, driven tooth wheel disc 4 middle parts have the through hole 5 of installation, through hole 5 inwalls are installed are offered two profile of tooth stopper slots 7, the installation end that power input shaft 2 is installed the driven tooth wheel disc also offers two storage tanks 8 that match with the profile of tooth stopper slot, be provided with special-shaped limited block 9 between storage tank 8 and the profile of tooth stopper slot 7, be provided with elastomer 10 between abnormity limited block 9 and the storage tank 8, in the present embodiment, elastomer is selected shell fragment for use.Abnormity limited block 9 upper ends be dentation its cooperate with the profile of tooth stopper slot, special-shaped limited block lower end is positioned at storage tank and the lower surface offers breach 11, elastomer 10 is arranged between breach and storage tank 8 bottom lands.
Two profile of tooth stopper slots 7 are distributed on the driven tooth wheel disc through hole 5 inwalls are installed, and two storage tanks 8 are distributed on the installation end 20 that power input shaft is installed the driven tooth wheel disc, guarantee that power input shaft is arranged on the driven tooth wheel disc reposefully and installs in the through hole.Certainly, the profile of tooth stopper slot and with its accordingly the storage tank number can also be arranged to three, four, five, six or the like, install in the through hole as long as can make power input shaft be arranged on the driven tooth wheel disc 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 seal cover 14 between power input shaft and the Box Cover.Power take-off 3 and gear housing 1 are provided with bearing 16 and sealing lid 17 between the installing hole 15 of power take-off, can guarantee that like this power input shaft, power take-off 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 power take-off end is the straight-tapered gear.
Above embodiment is not a limitation of the present invention, and the scope of protection of the invention includes but not limited to above embodiment, and any improvement of carrying out on basis of the present invention all belongs to the scope of protection of the invention.
Claims (8)
1. mower gear-box, comprise gear housing, power input shaft, power take-off, one end of power input shaft is positioned at gear housing, 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 power take-off is positioned at gear housing, the other end is positioned at the outside of gear housing, the power take-off end that is positioned at gear housing is provided with the gear that matches with the gear teeth on the driven tooth wheel disc, it is characterized in that: described driven tooth wheel disc middle part has the installation through hole, through-hole wall is installed is offered two profile of tooth stopper slots at least, the installation end that described power input shaft is installed the driven tooth wheel disc offers the storage tank that matches with the profile of tooth stopper slot, storage tank is identical with the number of profile of tooth stopper slot, be provided with special-shaped limited block between described storage tank and the profile of tooth stopper slot, be provided with elastomer between special-shaped limited block and the storage tank.
2. mower gear-box according to claim 1, it is characterized in that: described special-shaped limited block upper end be dentation its cooperate with the profile of tooth stopper slot, abnormity limited block lower end is positioned at storage tank and the lower surface offers breach, and described elastomer is arranged between breach and the storage tank bottom land.
3. mower gear-box according to claim 1 is characterized in that: described profile of tooth stopper slot is distributed on the driven tooth wheel disc through-hole wall is installed, and storage tank is distributed on the installation end that power input shaft is installed the driven tooth wheel disc.
4. mower gear-box according to claim 1 is characterized in that: described gear housing one side is provided with Box Cover, and power input shaft passes Box Cover, is provided with bearing and seal cover between power input shaft and the Box Cover.
5. mower gear-box according to claim 1 is characterized in that: described power take-off and gear housing are provided with bearing and sealing lid between the installing hole of power take-off.
6. mower gear-box according to claim 1 is characterized in that: described driven tooth wheel disc is a bevel gear, and the gear of described power take-off end is the straight-tapered gear.
7. according to each described mower gear-box among the claim 1-6, it is characterized in that: described elastomer is a shell fragment.
8. according to each described mower gear-box among the claim 1-6, it is characterized in that: described 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 true CN101983549A (en) | 2011-03-09 |
| CN101983549B CN101983549B (en) | 2012-05-09 |
Family
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) |
Cited By (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 |
| CN111684877A (en) * | 2020-06-24 | 2020-09-22 | 杭州富阳顺来粮油专业合作社 | Agricultural weeder with prevent weeds regeneration |
Citations (6)
| 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 |
| JPH05231504A (en) * | 1992-02-21 | 1993-09-07 | Iseki & Co Ltd | Speed change gear |
| 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 |
| 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 (6)
| 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 |
| JPH05231504A (en) * | 1992-02-21 | 1993-09-07 | Iseki & Co Ltd | Speed change gear |
| 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 |
| CN201860595U (en) * | 2010-11-01 | 2011-06-15 | 常州汉森机械有限公司 | Gear box for mower |
Cited By (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 |
| CN111684877A (en) * | 2020-06-24 | 2020-09-22 | 杭州富阳顺来粮油专业合作社 | Agricultural weeder with prevent weeds regeneration |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101983549B (en) | 2012-05-09 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CP01 | Change in the name or title of a patent holder |
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 |