CN2877255Y - Rice and wheat thresher - Google Patents
Rice and wheat thresher Download PDFInfo
- Publication number
- CN2877255Y CN2877255Y CN 200620068377 CN200620068377U CN2877255Y CN 2877255 Y CN2877255 Y CN 2877255Y CN 200620068377 CN200620068377 CN 200620068377 CN 200620068377 U CN200620068377 U CN 200620068377U CN 2877255 Y CN2877255 Y CN 2877255Y
- Authority
- CN
- China
- Prior art keywords
- sprocket wheel
- rice
- threshing cylinder
- chain
- threshing
- 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.)
- Expired - Fee Related
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- Threshing Machine Elements (AREA)
Abstract
The utility model discloses a rice-wheat thresher and pertains to agricultural machinery field, including a bracket, a threshing cylinder equipped on the bracket and the drive device, which includes a first chain wheel, a second and a third chain wheel equipped on the same shaft, a ratchet wheel equipped on the same shaft with the threshing cylinder, a first chain between the first chain wheel and the second chain wheel for transmission, a second chain between the third chain wheel and the ratchet wheel for transmission, a foot board equipped on the same shaft with the first chain wheel, and a resetting device of foot board resetting equipped on the bracket. The utility model changes the high intensity labor of quick-speed treading up-and-down with feet by farmers in traditional operation. And the up-and-down treading with the frequency suitable for self-habit could facilitate the threshing cylinder to reach optimum threshing speed and the inertia rotation of the threshing cylinder will not drive the up-and-down movement of the foot board.
Description
Technical field
The utility model relates to a kind of agricultural machinery, relates in particular to a kind of rice-wheat thresher.
Background technology
At present; known thresher divides two kinds: motor driven type and non-motor driven type; the motor driven type thresher is mainly by the threshing container that is fixed on the frame; threshing cylinder and drive unit thereof are formed; the threshing cylinder two ends are fixed on the middle front part branch of threshing container; drive unit is fixed on the frame of threshing container postmedian; small belt pulley on the drive unit links to each other with big belt pulley on the threshing cylinder mandrel by belt; during work; power sends threshing cylinder to by belt and belt pulley orientation and makes its fast rotational; the spike of rice or the wheat head are contacted with threshing cylinder, and the threshing spike-tooth on the threshing cylinder impacts spike of rice or the wheat head continuously to reach the purpose of threshing.Non-motor driven type thresher and motor driven type thresher difference are that mainly the former is driven by the peasant by threshing cylinder; a pinion promptly is installed on the threshing cylinder mandrel; what be meshed with it is a gear wheel; gear wheel is provided with a pedal; during threshing; pin of peasant is stepped on pedal continuously fast rotates gear wheel, and gear wheel drives pinion again finally makes the threshing cylinder fast rotational to reach the purpose of threshing.The non-motor driven type thresher of this kind requires peasant's stepping frequency up and down to want high when threshing, the labour intensity height, and threshing cylinder drives pedal and moves up and down and might weigh instep wounded because of inertia rotates continuously.
Summary of the invention
The purpose of this utility model provides a kind of safe and reliable, rice-wheat thresher that labour intensity is low.
The technical scheme that the utility model adopted is such: a kind of rice-wheat thresher; comprise frame, be located at threshing cylinder and drive unit thereof on the described frame; described drive unit comprise second sprocket wheel of first sprocket wheel, coaxial setting and the 3rd sprocket wheel, with the ratchet of the coaxial setting of described threshing cylinder; between described first sprocket wheel and second sprocket wheel by first chain drive; between described the 3rd sprocket wheel and the ratchet by second chain drive; the described first chain wheel side is provided with pedal, also is provided with the resetting means that described pedal is resetted in addition on the frame.
Above-mentioned rice-wheat thresher, the number of teeth of described first sprocket wheel are 1-3 times of second teeth number of sprocket.
Above-mentioned rice-wheat thresher, the number of teeth of described the 3rd sprocket wheel are 1-3 times of the ratchet number of teeth.
Above-mentioned rice-wheat thresher, described resetting means are the torsion springs that is provided with described first sprocket coaxiality, and described torsion spring one end is fixed on first sprocket wheel, and the torsion spring other end is fixed on the frame.
Above-mentioned rice-wheat thresher, described resetting means is an extension spring, and described extension spring one end is located on the frame, and the other end is located on the pedal.
The utility model changes conventional gears and meshes direct drive pattern, drives indirectly by two groups of sprocket wheels, and the peasant does not need to scrunch pedal at a high speed on the one hand, reaches best threshing rotating speed even its drive unit amplifies the transmission threshing cylinder through two-stage; By on threshing cylinder, being provided with ratchet, can prevent to weigh instep wounded on the other hand, use safer because threshing cylinder running inertia drives the pedal reciprocating motion.
Description of drawings
Fig. 1 is an embodiment drive unit end view;
Fig. 2 is an embodiment drive unit front view;
Fig. 3 embodiment ratchet cutaway view.
Embodiment
With reference to figure 1, Fig. 2, Fig. 3; embodiment provides a kind of rice-wheat thresher; comprise frame 6, be located at threshing cylinder 5 and drive unit thereof on the described frame 6; described drive unit comprise second sprocket wheel 2 of first sprocket wheel 1, coaxial setting and the 3rd sprocket wheel 3, with the ratchet 4 of described threshing cylinder 5 coaxial settings; described ratchet 4 is the same with used ratchet on the bicycle; promptly can only unidirectional generation driving force, oppositely do not produce driving force.Between described first sprocket wheel 1 and second sprocket wheel 2 by 12 transmissions of first chain; and the number of teeth of described first sprocket wheel 1 is 2 times of second sprocket wheel, 2 numbers of teeth; between described the 3rd sprocket wheel 3 and the ratchet 4 by 34 transmissions of second chain; and the number of teeth of described the 3rd sprocket wheel 3 is 2 times of ratchet 4 numbers of teeth; the place of contiguous sprocket is provided with pedal 7 on described first sprocket wheel 1 side; also be provided with the extension spring 8 that described pedal 7 is resetted in addition on the frame; described extension spring 8 one ends are located on the frame 6; the other end is located on the pedal 7, and described in addition rice-wheat thresher also comprises and is used to accept the threshing case of rice wheat and prevents the cover cap (not shown) that the rice wheat flies to spread.
In the time of threshing, the spike of rice or the wheat head are placed on the threshing cylinder 5, with pin pedal 7 is stepped on downwards, pedal 7 drives first sprocket wheel 1 and clockwise rotates, under the drive of first chain 12, second sprocket wheel 2 and the 3rd sprocket wheel 3 clockwise rotate with unequal angular velocity, under the drive of second chain 34, ratchet 4 rotates counterclockwise, the threshing cylinder 5 that drives coaxial setting rotates with unequal angular velocity and carries out threshing, when pin upwards lifts, pedal 7 upwards resets under the effect of extension spring 8, drives first sprocket wheel 1, second sprocket wheel 2, the 3rd sprocket wheel 3, ratchet 4 rotates counterclockwise, with reference to figure 3, the inner ring of described ratchet 4 and threshing cylinder 5 mandrels are fixed together, threshing cylinder 5 is because inertia moves in turn clockwise, and owing to the existence of ratchet 4, the rotation of threshing cylinder 5 inertia can not drive pedal 7 and move up and down like this, when pin is stepped on pedal 7 downwards once more, then enter next working cycles.
In the foregoing description, described extension spring also can be the torsion spring that is provided with first sprocket coaxiality, and this torsion spring one end is fixed on the first chain wheel side, and the torsion spring other end is fixed on the frame.Pedal is depressed into the bottom and need overcomes the torsion spring work done like this, and after the downward power cancellation that puts on the pedal, described pedal resets under the effect of torsion spring restoring force.
Claims (5)
1, a kind of rice-wheat thresher; comprise frame, be located at threshing cylinder and drive unit thereof on the described frame; it is characterized in that described drive unit comprise second sprocket wheel of first sprocket wheel, coaxial setting and the 3rd sprocket wheel, with the ratchet of the coaxial setting of described threshing cylinder; between described first sprocket wheel and second sprocket wheel by first chain drive; between described the 3rd sprocket wheel and the ratchet by second chain drive; the described first chain wheel side is provided with pedal, also is provided with the resetting means that described pedal is resetted in addition on the frame.
2, rice-wheat thresher as claimed in claim 1, the number of teeth that it is characterized in that described first sprocket wheel are 1-3 times of second teeth number of sprocket.
3, rice-wheat thresher as claimed in claim 1, the number of teeth that it is characterized in that described the 3rd sprocket wheel are 1-3 times of the ratchet number of teeth.
4, as claim 1 or 2 or 3 described rice-wheat thresher, it is characterized in that described resetting means is the torsion spring that is provided with described first sprocket coaxiality, described torsion spring one end is fixed on first sprocket wheel, and the torsion spring other end is fixed on the frame.
5, as claim 1 or 2 or 3 described rice-wheat thresher, it is characterized in that described resetting means is an extension spring, described extension spring one end is located on the frame, and the other end is located on the pedal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620068377 CN2877255Y (en) | 2006-01-06 | 2006-01-06 | Rice and wheat thresher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620068377 CN2877255Y (en) | 2006-01-06 | 2006-01-06 | Rice and wheat thresher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2877255Y true CN2877255Y (en) | 2007-03-14 |
Family
ID=37859676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620068377 Expired - Fee Related CN2877255Y (en) | 2006-01-06 | 2006-01-06 | Rice and wheat thresher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2877255Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103597964A (en) * | 2013-11-22 | 2014-02-26 | 福建工程学院 | Folding portable thresher |
-
2006
- 2006-01-06 CN CN 200620068377 patent/CN2877255Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103597964A (en) * | 2013-11-22 | 2014-02-26 | 福建工程学院 | Folding portable thresher |
| CN103597964B (en) * | 2013-11-22 | 2015-08-12 | 福建工程学院 | A kind of folding-type portable threshing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070314 |