CN207083471U - Green-fodder harvesting machine stationary knife - Google Patents
Green-fodder harvesting machine stationary knife Download PDFInfo
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- CN207083471U CN207083471U CN201720864478.8U CN201720864478U CN207083471U CN 207083471 U CN207083471 U CN 207083471U CN 201720864478 U CN201720864478 U CN 201720864478U CN 207083471 U CN207083471 U CN 207083471U
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- cutter hub
- hole
- stationary knife
- nut
- deep gouge
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Abstract
The utility model discloses Green-fodder harvesting machine stationary knife, belongs to cutting-tool engineering field, and stationary knife includes cutter hub, at least two bolts hole are provided with along its length on cutter hub, it is important to：Described bolt hole is shoulder hole, including lower screw hole and upper cap nut hole, the depth in upper cap nut hole is more than or equal to the nut height of bolt, and the buffer structure that deep gouge makes the cutter hub between deep gouge and lower screw hole be formed as stationary knife is provided with the lower screw hole periphery of cutter hub lower surface.Nut is hidden in upper cap nut hole, the rate of wear of nut can be slowed down, extends the service life of nut, it is more convenient in dismounting, it is time saving and energy saving.Cutter hub lower surface is separated into two parts using deep gouge, when bolt is by external force collision, the contact area of cutter hub and cutter shaft between deep gouge and lower screw hole is small, can play good cushioning effect, avoid cutter hub from being damaged, the service life of cutter hub can be extended.
Description
Technical field
The utility model belongs to cutting-tool engineering field, is related to Green-fodder harvesting machine stationary knife.
Background technology
Greenfeed (is also green forage, greenfeed material), refers to the fresh cauline leaf of the plant that may be used as feed, because green rich in leaf
Element and gain the name, greenfeed mainly includes native grass, tame forage grass, weeds in field, dish leaf class, water plant, spray leaf etc..
With the fast development of China's livestock rearing industry, the demand of greenfeed is increased severely, the usage amount of Green-fodder harvesting machine is increasingly
Greatly.Bolt hole is all offered on the cutter hub of existing Green-fodder harvesting machine stationary knife, is connected being fixed after bolt passing through bolt hole with cutter shaft
Connect, the nut of bolt is exposed above cutter hub, after long-time use, the nut serious wear of bolt, is wasted time and energy during dismounting, sometimes
Even need to polish on nut and screw rod could be taken out.And spiral shell is worked as in the whole lower surface of existing cutter hub all with cutter shaft rigid contact
When bolt is by external force collision, buffering effect is poor, and cutter hub is easily broken off and is damaged.
The content of the invention
The defects of the utility model is in order to overcome prior art, Green-fodder harvesting machine stationary knife is devised, nut can be slowed down
The rate of wear, extend the service life of nut, it is more convenient in dismounting, it is time saving and energy saving, and when bolt is by outer
When power is hit, buffer structure can avoid cutter hub from being damaged, and extend the service life of cutter hub.
The concrete technical scheme that the utility model is taken is：Green-fodder harvesting machine stationary knife, including cutter hub, along length on cutter hub
Degree direction is provided with least two bolts hole, it is important to：Described bolt hole is shoulder hole, including lower screw hole and upper cap nut
Hole, the depth in upper cap nut hole are more than or equal to the nut height of bolt, the lower screw hole periphery of cutter hub lower surface are provided with deep gouge
The cutter hub between deep gouge and lower screw hole is set to be formed as the buffer structure of stationary knife.
The ratio between the depth of the deep gouge and the depth of lower screw hole are (0.25-0.5)：1.
Described bolt hole is that width of the length direction of strip hole and strip hole along cutter hub is set.
The side of the cutter hub is provided with blade, and the angle between blade upper surface and cutter hub is obtuse angle, blade lower surface
It is arcuate structure, is the arcuate structure that both ends are low, centre is high at the top of blade.
The ratio between total length of spacing and cutter hub between adjacent bolt hole is 1：(8-10).
The beneficial effects of the utility model are：Nut is hidden in upper cap nut hole, the rate of wear of nut can be slowed down,
Extend the service life of nut, it is more convenient in dismounting, it is time saving and energy saving.Cutter hub lower surface is separated into two using deep gouge
Part, when bolt is by external force collision, the contact area of cutter hub and cutter shaft between deep gouge and lower screw hole is small, can be with
Good cushioning effect is played, avoids cutter hub from being damaged, the service life of cutter hub can be extended.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the sectional view of bolt hole length direction in Fig. 1.
Fig. 3 is Fig. 1 left view.
In accompanying drawing, 1 represents cutter hub, and 2 represent bolt hole, and 2-1 represents lower screw hole, and 2-2 represents upper cap nut hole, and 3 representatives are heavy
Groove, 4 represent blade, and d represents spacing, and D represents total length.
Embodiment
The utility model is elaborated with specific embodiment below in conjunction with the accompanying drawings：
Specific embodiment, as shown in Figure 1, Figure 2 and Figure 3, Green-fodder harvesting machine stationary knife, including cutter hub 1, along length on cutter hub 1
Degree direction is provided with least two bolts hole 2, and bolt hole 2 is shoulder hole, including lower screw hole 2-1 and upper cap nut hole 2-2, upper spiral shell
Cap aperture 2-2 depth is more than or equal to the nut height of bolt, and nut is hidden in the 2-2 of upper cap nut hole, can slow down nut
The rate of wear, extend the service life of nut, it is more convenient in dismounting, it is time saving and energy saving.Lower spiral shell in the lower surface of cutter hub 1
Rod aperture 2-1 peripheries are provided with the buffering knot that deep gouge 3 makes the cutter hub 1 between deep gouge 3 and lower screw hole 2-1 be formed as stationary knife
Structure, the lower surface of cutter hub 1 is separated into two parts using deep gouge 3, when bolt is by external force collision, positioned at deep gouge 3 and lower screw rod
The contact area of cutter hub 1 and cutter shaft between the 2-1 of hole is small, can play good cushioning effect, avoids cutter hub 1 from being damaged, can
To extend the service life of cutter hub 1.
As to further improvement of the utility model, the intensity of the too deep then cutter hub 1 of deep gouge 3 can reduce, deep gouge 3 too it is shallow then
When bolt is by external impacts, because the height of buffer structure is too small, the buffering effect unobvious played, so, by anti-
Multiple research, the ratio between the depth of deep gouge 3 and lower screw hole 2-1 depth are arranged to (0.25-0.5)：1 and preferably 0.4：1.
As to further improvement of the utility model, bolt hole 2 is the length direction of strip hole and strip hole along cutter hub 1
Width set, the position of stationary knife can be adjusted as needed, preferably meet use demand, and installation can be reduced
Difficulty.
Side to further improvement of the utility model, cutter hub 1 is provided with blade 4, the upper surface of blade 4 and cutter hub
Angle α between 1 is obtuse angle, and the lower surface of blade 4 is arcuate structure, and the top of blade 4 is the arc knot that both ends are low, centre is high
Structure, cutting power is stronger, and cutting effect is more preferable, can improve cutting efficiency.
As to further improvement of the utility model, the total length D of spacing d between adjacent bolt hole 2 and cutter hub 1 it
Quantity than the more big upper bolt hole 2 of then cutter hub 1 is fewer, and on the contrary then bolt hole 2 quantity is more, by between adjacent bolt hole 2
The ratio between spacing d and total length D of cutter hub 1 is arranged to 1：(8-10) and preferably 1：9, ensuring that cutter hub 1 is reliably connected with cutter shaft
In the case of, the quantity of bolt hole 2 is reduced as far as possible, it is cost-effective so as to reduce the usage amount of bolt, and during dismounting more
Fast, it is time saving and energy saving.
Claims (5)
1. Green-fodder harvesting machine stationary knife, including cutter hub (1), cutter hub are provided with least two bolts hole along its length on (1)
(2), it is characterised in that：Described bolt hole (2) is shoulder hole, including lower screw hole (2-1) and upper cap nut hole (2-2), upper spiral shell
The depth of cap aperture (2-2) is more than or equal to the nut height of bolt, is set in lower screw hole (2-1) periphery of cutter hub (1) lower surface
There is the buffer structure that deep gouge (3) makes the cutter hub (1) between deep gouge (3) and lower screw hole (2-1) be formed as stationary knife.
2. Green-fodder harvesting machine stationary knife according to claim 1, it is characterised in that：The depth of the deep gouge (3) and lower spiral shell
The ratio between depth of rod aperture (2-1) is (0.25-0.5)：1.
3. Green-fodder harvesting machine stationary knife according to claim 1, it is characterised in that：Described bolt hole (2) is strip hole
And width of the length direction of strip hole along cutter hub (1) is set.
4. Green-fodder harvesting machine stationary knife according to claim 1, it is characterised in that：The side of the cutter hub (1) is provided with
Blade (4), the angle (α) between blade (4) upper surface and cutter hub (1) are obtuse angle, and blade (4) lower surface is arcuate structure, knife
It is the arcuate structure that both ends are low, centre is high at the top of sword (4).
5. Green-fodder harvesting machine stationary knife according to claim 1, it is characterised in that：Spacing between adjacent bolt hole (2)
(d) it is 1 with the ratio between the total length (D) of cutter hub (1)：(8-10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720864478.8U CN207083471U (en) | 2017-07-17 | 2017-07-17 | Green-fodder harvesting machine stationary knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720864478.8U CN207083471U (en) | 2017-07-17 | 2017-07-17 | Green-fodder harvesting machine stationary knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207083471U true CN207083471U (en) | 2018-03-13 |
Family
ID=61545339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720864478.8U Active CN207083471U (en) | 2017-07-17 | 2017-07-17 | Green-fodder harvesting machine stationary knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207083471U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109220177A (en) * | 2018-11-12 | 2019-01-18 | 南京申发冶金机械制造有限公司 | The straw chopping apparatus and maize harvesting machine of ear picking bench of corn harvester |
-
2017
- 2017-07-17 CN CN201720864478.8U patent/CN207083471U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109220177A (en) * | 2018-11-12 | 2019-01-18 | 南京申发冶金机械制造有限公司 | The straw chopping apparatus and maize harvesting machine of ear picking bench of corn harvester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 052160 Jia Shi Zhuang Zhen Guan Zhuang Cun Nan, Gaocheng District, Shijiazhuang City, Hebei Province Patentee after: Shijiazhuang Beichuang Tool Co.,Ltd. Address before: 052160 Jia Shi Zhuang Zhen Guan Zhuang Cun Nan, Gaocheng District, Shijiazhuang City, Hebei Province Patentee before: SHIJIAZHUANG GAOCHENG DISTRICT BEICHUANG TOOL CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder |