CN103120060B - There is the sower of power moving device - Google Patents
There is the sower of power moving device Download PDFInfo
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- CN103120060B CN103120060B CN201110369902.9A CN201110369902A CN103120060B CN 103120060 B CN103120060 B CN 103120060B CN 201110369902 A CN201110369902 A CN 201110369902A CN 103120060 B CN103120060 B CN 103120060B
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- movable pulley
- sower
- power
- bearing
- securing member
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Abstract
The present invention relates to the sower with power moving device.Can under the state that power is connected to movable pulley, motive force is applied to handle side, thus can in change direction, original place, and the direction conversion direction also can expected to operator in power mobile process, and motive force can be applied to the handle side of sower, thus can move with the speed faster than the rotating speed of driving shaft, in addition, if cut off the driving force of engine, then sower can be moved in motorless mode by external force, the securing member of movable pulley is formed as permanent or semipermanent form, thus the firm bonding state of driving shaft and movable pulley can be maintained.A kind of sower with power moving device, described power moving device has engine and roller and a pair movable pulley, a pair movable pulley is formed with dismountable structure at the left and right sides of sower, make its power being subject to engine and drive, if cut-out power, then drive with external force, the support of bearing is comprised at above-mentioned movable pulley, wheel and for the securing member that connects power and pitman, at the above-mentioned support of bearing and pitman, the rolling bearing of movement is also regulated by load for supporting sower to be separated at certain intervals in the same axis of movable pulley with one-way clutch bearing and to install.
Description
Technical field
The present invention relates to sower, particularly relate to the sower with power moving device, to the sower implementing seeding operation according to the power of engine arranged at sower, to drive to be subject to power and the vibrational power flow being convenient to load and unload moves with wheel, make it easy to move in seeding operation.
Background technology
Sower is generally configured to, and arranges engine and speed change gear to sower, and by the transmission of power of engine to the roller being used for seeding operation, can be moved by power and while implement seeding operation.
As the prior art about such sower, apply for the applicant and disclose following seeding plough in No. 20-0187996th, the mandate utility model (Korea S) of authorizing: starting driven roller by engine, thus automatically advance and realize seeding operation.Consist of, make the driving force of engine or drive motor pass to driven roller by decelerator and chain, even if thus people does not promote sower can advance yet, he outside secondary, when moving to sowing ground, load and unload unpowered movable pulley and carrying sower.
But the movable pulley of above-mentioned prior art is not be connected with power set and driven by power, but operator's push-and-pull sower and sower is moved, so the sower not easily weight being reached 100kg ~ 150kg moves.In addition, also exist: when being transported on lorry by sower to transport, be not easy loading area sower being pushed to lorry, thus need to utilize crane etc., the difficulty that the carrying of sower brings.
In order to solve such problem, as shown in Figure 1, to apply for and in No. 20-0352030th, the mandate utility model (Korea S) of the prior art of authorizing the applicant, propose following sower: by the transmission of power of engine (100) to power transmission, thus driven roller (101) is rotated, and at the two ends of this drive roller shaft (102) handling movable pulley (103), and utilize steady pin (104) to maintain bonding state, thus when carrying out seeding operation, separate mobile is taken turns, when moving with the object beyond sowing, movable pulley is installed, thus can be moved by the power of engine.
But in above-mentioned prior art, the drive roller shaft driven being subject to power directly connects movable pulley and drives, and therefore a pair movable pulley can only rotate with identical rotating speed.Thus, although when mobile in order to seeding operation, even if do not apply motive force also can by power make sower forward line direction carry out power mobile, but because a pair movable pulley rotates with identical rotating speed, therefore when sower changes direction and moves, need the larger turning radius, thus on sweep little Nong road or road, be difficult to mobile under the state being connected to power.In addition, in order to make sower in original place reverse directions, can only power be cut off and utilize external force, meanwhile, existing and be difficult to sower is moved with the speed more than rotating speed of drive roller shaft, be namely difficult to the problem in quick movements such as the good straight line highways of road conditions.
In addition, in order to maintain movable pulley installation state on the driving shaft, need to be fastened and fixed pin.Therefore, when forget be fastened and fixed pin and movable pulley is installed when, movable pulley can be separated with axle, thus frequent the accidents such as the damaged or worker of sower is injured occurs; When losing steady pin, there is the problem can not installing movable pulley.
Summary of the invention
The present invention completes to solve existing sower Problems existing, its object is to, there is provided following sower: be there is in the both sides of the roller of sower the movable pulley driven by power, under the state that power is connected to movable pulley, motive force is applied to sower handle side, thus can direction be changed at the road that sweep is little and move, and can move with the speed faster than the rotating speed of driving shaft, in addition the firm bonding state of driving shaft and movable pulley is maintained, and the simple structure of the loading and unloading with movable pulley.
In order to achieve the above object, the present invention is at a kind of sower with power moving device, described power moving device has engine, roller and a pair movable pulley, above-mentioned a pair movable pulley is formed with dismountable structure at the left and right sides of sower, it is subject to the power of engine and drives, if cut-out power, then drive with external force, above-mentioned movable pulley comprises the support of bearing, wheel and for the securing member that connects power and pitman, for above-mentioned supporting bracket and pitman, the load of sower is supported and the rolling bearing of adjustment movement and one-way clutch bearing by being used for, the identical axis of movable pulley is separated at certain intervals and installs.
Above-mentioned securing member comprises: right side securing member, forms the polygon intubate will inserting bulb stopper in its side, forms flange, thus combined by screw with the right side sprocket wheel that the axle at the second roller is combined at opposite side; And left side securing member, form the left side sprocket wheel that polygon intubate is inserted into the axle of the second roller is combined that will insert bulb stopper in its side and be welded and fixed, the side of above-mentioned pitman is formed as the cylindrical shape rod with axle bearing mount portion, opposite side is formed as polygon rod, to the polygon intubate of the above-mentioned securing member be made up of right side securing member and left side securing member, insert the polygon rod of above-mentioned pitman respectively.
In addition, the cylindrical shape clavate of above-mentioned pitman becomes to be used for install rolling bearing in side and the keyway installing one-way clutch bearing at opposite side, the screw hole of certain depth is formed in end, the polygon rod of above-mentioned pitman has structure and the size of the polygon intubate that can be inserted into above-mentioned securing member respectively, form spherical groove in the side of the outer peripheral face of above-mentioned polygon rod to circumferencial direction, make polygon intubate arrange bulb stopper ball can with its combination.
In addition, the above-mentioned rolling bearing installed at the axle bearing mount portion of above-mentioned pitman and one-way clutch bearing, with the direct of travel of sower for benchmark, to right side movable pulley, at outside configuration rolling bearing, in inner side configuration one-way clutch bearing; To left side movable pulley, at inner side configuration rolling bearing, at outside configuration clutch bearing.
The sower with power moving device is provided as described above, it is configured to: the flange forming multiple latch aperture of boring a hole at certain intervals in the periphery of the wheel hub of the above-mentioned support of bearing, to above-mentioned flange, central portion is utilized screw by through gripper shoe and combines, above-mentioned gripper shoe has certain thickness, and by its outside diameter to split at equal intervals thus to form intercepting portion, corner, and utilize bolt and nut, be combined with the framework of movable pulley.
Sower of the present invention as above, the movable pulley driven by power is formed in sower both sides, described movable pulley comprises bearing and securing member and pitman, thus produce following significant action effect: under the state that power is connected to movable pulley, motive force is applied to the handle side of sower, thus can in change direction, original place, the direction conversion direction also can wished to operator in power mobile process.In addition, motive force is applied to the handle side of sower, thus can move with the speed of the rotating speed faster than driving shaft.In addition, if cut off the driving force of engine, then sower can be moved with no-power way by external force.In addition, the securing member of movable pulley is formed as permanent or semipermanent form, maintain the firm bonding state between driving shaft and movable pulley with this, handling operation becomes simple, and the situation of the combination parts losing movable pulley can not occur.
Accompanying drawing explanation
Fig. 1 is the figure of the seeding plough representing prior art.
Fig. 2 is the stereogram representing seeding plough of the present invention.
Fig. 3 is the front view representing the state being separated movable pulley from seeding plough of the present invention.
Fig. 4 is the figure representing the assembled state of movable pulley at seeding plough of the present invention.
Fig. 5 is the figure of the details assembled state of the right-hand wheel represented in movable pulley of the present invention.
Fig. 6 is the figure of the details assembled state of the left side wheels represented in movable pulley of the present invention.
Fig. 7 represents the figure that will connect the right side securing member of right side movable pulley of the present invention.
Fig. 8 represents the figure that will connect the left side securing member of left side movable pulley of the present invention.
Fig. 9 is the figure representing the support of bearing that movable pulley of the present invention possesses.
Figure 10 is the figure representing the pitman that movable pulley of the present invention possesses.
Figure 11 is the figure representing the gripper shoe that movable pulley of the present invention possesses.
Label declaration
1: handle 2: the first roller
3: the second roller 3a: the second roll shafts
4: framework 5: hopper
6: plough 7: sowing portion
8: engine 9: decelerator
10: clutch 11: band
12: power transmission 13,13a move with wheel
14: the support of bearing 15: tire
16: securing member 17: pitman
18: rolling bearing (Rolling bearing) 19: clutch bearing
20,20a: polygon intubate 21,33: flange (flange)
22, right side sprocket wheel (pulley) 23: right side securing member
24: left side sprocket wheel 25: left side securing member (Fastener)
26: polygon rod 27: cylindrical shape rod
28,29: axle bearing mount portion 30: wheel hub
31,31a: bulb stopper (ball plunger) 32: ball recess
34: gripper shoe 35: intercepting portion, corner
36: wheel frame 37: latch aperture
A: sower
Embodiment
Below, based on accompanying drawing, illustrate in greater detail structure of the present invention and effect.In explanation of the present invention, the term used in this description and in the claims and word, suitably to the principle that term and concept define, meaning and the concept of technological thought according to the invention should can be interpreted as to utilize the invention of best approach explanation oneself based on inventor.
As shown in Figure 2 and Figure 3, the sower with power moving device of the present invention comprises: handle (1); Planting seed portion (7), its front portion being included in framework for make first roller (2) of the ground even before sowing and at the rear portion of framework for pushing by second roller (3) of the seed sowed, and the pars intermedia of framework (4) touches loading and unloading type hopper (5) by multiple list forms with plough (6); Engine (8); For reducing the decelerator (9) of the rotary power of engine; For connecting or cut off the clutch (10) of rotary power of engine; And the output of above-mentioned decelerator (9) is passed to the power transmission (12) of the axle (3a) of the second roller (3) via band (11), make a pair movable pulley (13,13a) of sower movement when non-seeding operation is removably disposed in above-mentioned second roller (3).
The above-mentioned movable pulley installed and removed above-mentioned second roller (3) (13,13a) is following structure: combine with the axle (3a) of the second roller and formed, to be subject to the rotary power of the second roller and to drive, described second roller drives with the power of engine, if and cut off rotary power that above-mentioned second roller (3) is provided, then above-mentioned movement wheel utilizes external force to drive with no-power way.
Namely, as shown in Figure 4, above-mentioned movable pulley (13, 13a) be configured to: there is in the outside of movable pulley wheel (15), and at central part, there is the support of bearing (14), and comprise the securing member (16) of the axle (3a) for the central part of movable pulley being connected to the second roller (3) as driving shaft and pitman (17), if make under the state being passed the engine drive power for driving both sides movable pulley, operator applies motive force to the handle (1) of seeding plough (A), then sower action edge of can going forward side by side in less radius of turn internal conversion direction moves, if cut off the driving force for driving above-mentioned movable pulley, then in less radius of turn with the convertible direction of no-power way and movement.
The load of sower is supported at the above-mentioned support of bearing (14), the same axis of a pair movable pulley (13,13a) installs rolling bearing (18) and one-way clutch bearing (19) separately, apply motive force if make to the handle side of sower, then left side rotates with the rotating speed that the rotating speed of the axle (3a) than the second roller is fast separately or together with the movable pulley on right side.
As shown in Figure 4, above-mentioned securing member (16) is made up of right side securing member (23) and left side securing member (25), as shown in Figure 7, above-mentioned right side securing member (23) forms the polygon intubate (20) of having installed bulb stopper (31) in side, flange (21) is formed at opposite side, thus by multiple bolts and nuts, combine with the right side sprocket wheel (22) on right side of the axle (3a) being positioned at the second roller (3).
As shown in Figure 8, in above-mentioned left side securing member (25), the polygon intubate (20a) of having installed bulb stopper (31a) in side is inserted the left side sprocket wheel (24) combined with axle (3a) being positioned at the left side of the second roller (3), and be welded and fixed.
In addition, as shown in Figure 5, Figure 6, have pitman (17) at above-mentioned movable pulley, described pitman (17) is tied tight on above-mentioned right side and left side securing member, and the framework of wheel is fixed on described pitman (17).
As shown in Figure 10, the side of above-mentioned pitman (17) is formed as cylindrical shape rod (27), described cylindrical shape rod (27) has and is separated at certain intervals by the keyway being used for inserting parallel key and the axle bearing mount portion (28,29) that formed, and forms the screw hole of certain depth in end; Opposite side is formed as the polygon rod (26) with certain length.At the circumferentially formation groove (32) of the side of above-mentioned polygon rod (26), described groove (32) is inserted and hangs up the ball at the upper bulb stopper (31,31a) formed of the polygon pipe (20,20a) of above-mentioned securing member.
As mentioned above, the present invention forms the securing member be combined with pitman in the main body of seeding plough, pitman is formed at movable pulley, pitman (17) inserts the polygon intubate (20,20a) of above-mentioned right side securing member (23) and left side securing member (25), thus hang up the ball of bulb stopper (31,31a) at the groove of pitman (17), thus maintain the bonding state of movable pulley.
That is, the present invention is by means of only to external force more than the horizontal direction applying necessarily of pitman (17), just simply to sower coupled/separated movable pulley, can perform for the operation arranged or separate mobile is taken turns therefore, it is possible to convenient.And, not as prior art, use other for the steady pin of fixing movable pulley, can prevent thus: due to lose steady pin or forget arrange steady pin and in the process of walking movable pulley be separated from sower, the damage of contingent sower or personal injury thus.
In addition, above-mentioned rolling bearing (18) is arranged on the internal side diameter of the wheel hub (30) that the above-mentioned support of bearing (14) has at certain intervals discretely with the foreign steamer of one-way clutch bearing (19), and the interior wheel of above-mentioned two bearings (18,19) is with the outer peripheral face of the structure installment fixed by key in pitman (17).
The rolling bearing (18) installed respectively at the axle bearing mount portion (28,29) of above-mentioned pitman (17) and one-way clutch bearing (19) are configured in the same axis of above-mentioned a pair movable pulley (13,13a), with the direct of travel of sower for benchmark, in the outside of right side movable pulley (13) configuration rolling bearing (18), in inner side configuration one-way clutch bearing (19); In the inner side of left side movable pulley (13a) configuration rolling bearing (18), in outside configuration one-way clutch bearing (19).
Why configure rolling bearing and one-way clutch bearing at a pair movable pulley (13,13a) as described above, and the position of these bearings is configured to difference, be because can either load that successfully supported weight reaches the sower of 100kg ~ 150kg sower can be made again to move.
Especially, with the direction that one-way clutch bearing rotates, make left side spill be because, traditional one-way clutch bearing, from the direction rotated, the structure that left side is shielding processing, right side has circulation lubricating oil, therefore, it is possible to prevent foreign matter from invading Bearing inner, seeding operation particularly will consider the operating environment of the foreign matters such as multiple earth or dust, configures bearing.
In addition, under the state that sower has been applied in power, motive force is applied to the side of handle, and the rotating speed of side wheel is accelerated, thus make sower when original place rotation or conversion direction, prevent opposite side wheel from reversely rotating by one-way clutch bearing and prevent sower from retreating, thus the security incident that the retrogressing of the sower that can prevent operator from not expecting causes.
In addition, the movement of the both sides of sower is taken turns and all rotates with the rotating speed more than rotating speed of the axle of the second roller of certain speed rotation to be subject to power, thus obtain the action effect that can make sower Fast marching.
On the other hand, if cut off the power connected the movable pulley of sower of the present invention from power transmission, the axle of the second roller that then above-mentioned movable pulley combines becomes idling conditions, and therefore above-mentioned movable pulley can positive rotation or despining, thus sower can be made to advance with non-power state or retreat.
Namely, the sower with movable pulley of the present invention can when non-sowing be mobile, can be advanced by the motive force of the power of engine or operator, can on the road with less sweep conversion direction and moving, can advance by the motive force of operator or tractive force or move backward under the non-power state of the power cutting off engine
In addition, as shown in Figure 9, the wheel hub (30) of the above-mentioned support of bearing (14) forms the flange (33) of multiple latch aperture (37) of boring a hole at certain intervals in its periphery, combined by central portion by screw at above-mentioned flange (33) by through gripper shoe (34).
Above-mentioned gripper shoe (34) is configured to, as shown in Figure 11, to have certain thickness steel, outside diameter distributed at equal intervals and forms intercepting portion, corner (35), and combining with the framework (36) of bolts and nuts and movable pulley.
As above, be adjacent to the framework (36) of above-mentioned wheel in the intercepting portion, corner (35) of gripper shoe (34), and combined by bolts and nuts, also by bolts and nuts, the latch aperture (37) that above-mentioned gripper shoe (34) is bored a hole at the flange (33) of above-mentioned wheel hub (30) is combined, thus the associativity of a pair movable pulley (13,13a) is significantly improved, thus the power by being delivered to, easily realize the rotary motion of movable pulley (13,13a).
If illustrate in greater detail the mechanism to movable pulley transferring power of the present invention, if the output of above-mentioned engine (8) is delivered to above-mentioned decelerator (9), then by above-mentioned clutch (10) by the transmission of power of decelerator (9) to above-mentioned power transmission (12).
The power being delivered to power transmission (12) is as above delivered to right side sprocket wheel (22) by band (11), thus carry out the rotary motion on above-mentioned right side sprocket wheel (22), described right side sprocket wheel (22) combines with the axle (3a) of the second roller (3) on the right side being positioned at above-mentioned second roller (3).
By the rotary motion of right side sprocket wheel (22), the axle (3a) of the second roller combined with above-mentioned right side sprocket wheel (22) is rotated, the right side securing member (23) that right side sprocket wheel (22) is connected by rod bolt is rotated with at the upper left side securing member (25) combined of left side sprocket wheel (24), the above-mentioned pitman (17) being inserted into securing member on the right side of this (23) and left side securing member (25) is rotated, and the wheel hub (30) with the support of bearing (14) established at the upper axle of pitman (17) is rotated.
Like this, if wheel hub (30) rotates, the gripper shoe (34) then combined with wheel hub (30) and the framework (36) of above-mentioned wheel (13) be combined by bolts and nuts with this gripper shoe (34) are rotated, cause above-mentioned a pair movable pulley (13,13a) to rotate, thus make sower carry out power mobile.
As mentioned above, be illustrated with the preferred embodiments of the present invention, but the present invention is not limited to such embodiment, the above embodiments and existing known technology are carried out the embodiment of simple Combination application, claims of the present invention, the technical field belonging to the present invention in embodiments staff can carry out changing and the technology used all should be regarded as and is included in technical scope of the present invention.
Claims (4)
1. one kind has the sower (A) of power moving device, and described power moving device has engine (8), roller (2,3) and a pair movable pulley (13,13a), it is characterized in that,
Described a pair movable pulley (13,13a) is formed with dismountable structure at the left and right sides of sower (A), and it is subject to the power of engine and drives, if cut off power, then drives with external force,
Described movable pulley comprises the wheel (15) being formed in outside, the support of bearing (14) being formed as central part and for the securing member (16) of the axle (3a) that the central part of described movable pulley is connected to the second roller (3) as driving shaft and pitman (17)
For the described support of bearing (14) and pitman, to be used for supporting the load of sower and regulate rolling bearing (18) and the one-way clutch bearing (19) of movement, and the identical axis of movable pulley (13,13a) be separated at certain intervals and install;
Wherein, described securing member (16) comprising:
Right side securing member (23), the polygon intubate (20) will inserting bulb stopper (31) is formed in its side, form flange (21) at opposite side, thus combined by screw with the right side sprocket wheel (22) that the axle (3a) in the second roller (3) combines; And
Left side securing member (25), the polygon intubate (20a) will inserting bulb stopper (31) is formed in its side, described polygon intubate (20a) is inserted into the left side sprocket wheel (24) combined with the axle of the second roller (3) (3a), and be welded and fixed
The side of described pitman (17) is formed as the cylindrical shape rod (27) with axle bearing mount portion (28,29), and opposite side is formed as polygon rod (26),
To the polygon intubate of the described securing member (16) be made up of right side securing member (23) and left side securing member (25) (20,20a), insert the polygon rod (26) of described pitman (17) respectively.
2. there is the sower of power moving device as claimed in claim 1, it is characterized in that,
The cylindrical shape rod (27) of described pitman (17) is formed and is used for installing rolling bearing in side and the keyway (28,29) installing one-way clutch bearing at opposite side, forms the screw hole of certain depth in end,
The polygon rod (26) of described pitman (17) has structure and the size of the polygon intubate (20,20a) that can be inserted into described securing member (16) respectively,
Form spherical groove (32) in the side of the outer peripheral face of described polygon rod (26) to circumferencial direction, make the bulb stopper (31,31a) arranged in polygon intubate ball can with its combination.
3. there is the sower of power moving device as claimed in claim 1 or 2, it is characterized in that,
The described rolling bearing (18) installed at the axle bearing mount portion (28,29) of described pitman (17) and one-way clutch bearing (19),
With the direct of travel of sower for benchmark, to right side movable pulley (13), in outside configuration rolling bearing (18), in inner side configuration one-way clutch bearing (19); To left side movable pulley (13a), in inner side configuration rolling bearing (18), in outside configuration clutch bearing (19).
4. there is the sower of power moving device as claimed in claim 3, it is characterized in that,
The periphery of the wheel hub (30) in the described support of bearing (14) forms the flange (33) of multiple latch aperture (37) of boring a hole at certain intervals,
To described flange (33), central portion is utilized screw by through gripper shoe (34) and combines,
Described gripper shoe (34) has certain thickness, and by its outside diameter to split at equal intervals thus to form intercepting portion, corner (35), and utilize bolt and nut, combine with the framework (36) of movable pulley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110369902.9A CN103120060B (en) | 2011-11-18 | 2011-11-18 | There is the sower of power moving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110369902.9A CN103120060B (en) | 2011-11-18 | 2011-11-18 | There is the sower of power moving device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103120060A CN103120060A (en) | 2013-05-29 |
| CN103120060B true CN103120060B (en) | 2015-08-05 |
Family
ID=48451361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110369902.9A Expired - Fee Related CN103120060B (en) | 2011-11-18 | 2011-11-18 | There is the sower of power moving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103120060B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2402102Y (en) * | 1999-09-15 | 2000-10-25 | 江苏省盐城市农业机械化研究所 | Multifunctional baby tiller |
| US6209697B1 (en) * | 1999-07-15 | 2001-04-03 | The Hilliard Corporation | Small diameter wheel with overrunning clutch assembly |
| CN2457848Y (en) * | 2000-10-10 | 2001-11-07 | 张在洙 | Full-automatic seeder |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6655515B2 (en) * | 2001-05-24 | 2003-12-02 | Tecumseh Products Company | Modular bi-directional overrunning wheel clutch |
| KR200352030Y1 (en) * | 2004-03-08 | 2004-06-02 | 주식회사 장 자동화 | Seedtime that epuip transfer wheel |
-
2011
- 2011-11-18 CN CN201110369902.9A patent/CN103120060B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6209697B1 (en) * | 1999-07-15 | 2001-04-03 | The Hilliard Corporation | Small diameter wheel with overrunning clutch assembly |
| CN2402102Y (en) * | 1999-09-15 | 2000-10-25 | 江苏省盐城市农业机械化研究所 | Multifunctional baby tiller |
| CN2457848Y (en) * | 2000-10-10 | 2001-11-07 | 张在洙 | Full-automatic seeder |
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| Publication number | Publication date |
|---|---|
| CN103120060A (en) | 2013-05-29 |
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