CN104071227B - A kind of portable tiller rear wheel assembly and transmission case arrangement - Google Patents
A kind of portable tiller rear wheel assembly and transmission case arrangement Download PDFInfo
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- CN104071227B CN104071227B CN201410284759.7A CN201410284759A CN104071227B CN 104071227 B CN104071227 B CN 104071227B CN 201410284759 A CN201410284759 A CN 201410284759A CN 104071227 B CN104071227 B CN 104071227B
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Abstract
The invention discloses a kind of portable tiller rear wheel assembly and transmission case arrangement, the upper end of crossbeam (2) and fore-stock (16) fixes, the two ends, left and right of fore-stock (16) bottom are connected with the top of screw drive case (15) front end by bolt, it is symmetrical arranged trailing wheel (12) in the left and right sides of transverse tube (7) back lower place, this trailing wheel (12) is set in the end of wheel shaft (13) rotationally, wheel shaft (13) is symmetrically arranged with two long strip block (14) in left and right, long strip block (14) is connected with the first trailing wheel installing hole (6a) on respective side inclined tube (6) or the second trailing wheel installing hole (5e) on bend pipe (5) by bolt.Trailing wheel of the present invention can be packed up as required or put down, and retractable operation is simple, quick, can be effectively improved the work efficiency of tiller；Screw drive case adopts horizontal installation, can reduce tiller volume further, and screw drive case firmly installs, reliably, stationarity is good.
Description
Technical field
The invention belongs to tiller technical field, specifically, particularly to the rear wheel assembly on tiller and transmission case arrangement
Background technology
Tiller is the agriculture apparatus of New Times, has lightweight, and volume is little, the features such as simple in construction, it is widely used in Plain, mountain area, the nonirrigated farmland on hills, paddy field, orchard etc., mixes corresponding facility and can carry out drawing water, generate electricity, spray the operation such as medicine, spray, also can draw towed vehicle and carry out short-distance transport.Tiller has stronger motility, it is possible to freely travel in field, it is simple to user uses and deposits, and eliminates large-scale farm machinery and cannot be introduced into the worry of mountain area field, saves the plenty of time for peasant in busy farming season.
Frame is the vitals on tiller, is the skeleton of tiller, is used for arranging power assembly, ploughing the parts such as cutter, hands handle.Existing tiller frame not only structure is complicated, processing and fabricating difficulty, production cost are high, and it is big to take up room, and can increase the volume of whole tiller, is unfavorable for that tiller develops to miniaturization.
Road wheel and the cultivated cutter of tiller are all selectively installed on transmission case output shaft: when tiller is walked, be assembled on transmission case output shaft by road wheel；When tiller farming, first being removed by road wheel, be then assembled on transmission case output shaft by cultivated cutter, farming is reinstalled road wheel again after completing.Above structure not only disassembling operations is loaded down with trivial details, and the labor intensity of staff is big, and can greatly reduce the work efficiency of tiller.
What the power assembly on tiller was generally selected is vertical engine, and correspondingly screw drive case is also vertical installation, and worm box mounting process is complex so on the one hand, and fixing is poor；On the other hand, worm box takes up room relatively big in frame, also can increase the volume of whole tiller.
Summary of the invention
The technical problem to be solved is in that to provide a kind of simple in construction, compact portable tiller rear wheel assembly and transmission case arrangement.
nullTechnical scheme is as follows: a kind of portable tiller rear wheel assembly and transmission case arrangement，Including screw drive case (15) and frame，Described frame has supervisor (1)，The " u "-shaped that this supervisor (1) is front end closed rear end opening，The front end of supervisor (1) is upturned，Form bumper (1a)，Front portion between (1) two horizontal segment of supervisor is provided with crossbeam (2)，The pipe shaft of the end of this crossbeam (2) horizontal segment corresponding to supervisor (1) is welded and fixed，And the upper end of crossbeam (2) and fore-stock (16) fixes，The two ends, left and right of fore-stock (16) bottom are connected with the top of screw drive case (15) front end by bolt，Power shaft and the output shaft of screw drive case (15) are arranged on horizontal plane，Middle part between (1) two horizontal segment of supervisor is provided with supporting plate (3)，The pipe shaft of the end of this supporting plate (3) horizontal segment corresponding to supervisor (1) is welded and fixed，At the tail end plug of described supervisor (1) every horizontal segment equipped with plug (4)，The rear portion of plug (4) offers installing hole on handle bracket (4a) in left-right direction；
It is provided with bend pipe (5) in the lower section at supervisor (1) every horizontal segment rear portion, this bend pipe (5) is " V " shape, by the first straight section (5a), arc transition section (5b) and the second straight section (5c) are connected in turn, the upper end of described first straight section (5a) and the bottom welding being responsible for (1) respective side horizontal segment are fixed, installing hole (5d) under handle bracket is offered in the bottom of the first straight section (5a), and it is provided with location-plate (10) and lower location-plate (11) between first straight section (5a) of the right and left bend pipe (5), the end of these two pieces of location-plates and respective side bend pipe (5) fix；The rear end face of described screw drive case (15) abuts on location-plate (10) and lower location-plate (11), and the bolt that screw drive case (15) is worn by fore-and-aft direction is fixed together with upper location-plate (10) and lower location-plate (11) respectively；
It is equipped with inclined tube (6) at the rear of every bend pipe (5), after inclined tube (6) front height, low dip is arranged, the upper end of inclined tube (6) and the bottom welding being responsible for (1) respective side horizontal segment tail end are fixed, it is provided with transverse tube (7) between the inclined tube (6) of two, left and right, the end of the lower end of inclined tube (6) and transverse tube (7) fixes, the rear end of the right and left bend pipe (5) second straight section (5c) is welded on transverse tube (7), the first trailing wheel installing hole (6a) is offered at the middle part of described inclined tube (6), second straight section (5c) of bend pipe (5) offers the second trailing wheel installing hole (5e), the same side the first trailing wheel installing hole (6a) is equal to the distance of transverse tube (7) with the second trailing wheel installing hole (5e) to the distance of transverse tube (7)；
It is symmetrical arranged trailing wheel (12) in the left and right sides of described transverse tube (7) back lower place, this trailing wheel (12) is set in the end of wheel shaft (13) rotationally, wheel shaft (13) is symmetrically arranged with two long strip block (14) in left and right, the two long strip block (14) and two inclined tube (6) one_to_one corresponding, one end vertical welding of described long strip block (14) is on wheel shaft (13), the middle part of long strip block (14) is hinged with the end of transverse tube (7) by pin, the other end of long strip block (14) is connected with the first trailing wheel installing hole (6a) on respective side inclined tube (6) or the second trailing wheel installing hole (5e) on bend pipe (5) by bolt.
Adopting above technical scheme, whole support assembly moulding is simple, compact conformation, compact, is not only easy to processing and fabricating, and is conducive to tiller to develop to miniaturization；Constituting and adopt welding manner to fix between each adjacent tubes of frame, the fixing of connection is good.The front end of supervisor upwarps formation bumper, can play the effect of protection on the one hand, it is prevented that collide with the object in front and damage electromotor；On the other hand, bumper is available for grasping, and when tiller clears the jumps, it is simple to portable, makes tiller surmount obstacles more convenient.Supporting plate is used for supporting electromotor, and two ends of bearing plate is welded on supervisor, supports the good stability of electromotor.
The plug of end plug dress is offered under the handle bracket offered on installing hole and bend pipe the first straight section on handle bracket installing hole after supervisor's horizontal segment for installing handle bracket so that it is it is convenient, firm to install；Plug is prevented from supervisor horizontal segment rear end and flattens.Bend pipe is " V " shape, and processing and fabricating is easy, connects supervisor firm with transverse tube.It is provided with location-plate and lower location-plate between the bend pipe of the right and left, the structural strength of the right and left bend pipe can be strengthened on the one hand, it is prevented that bend pipe is towards relative Direction distortion；On the other hand, two pieces of location-plates, for the rear end face of positioning screw transmission case, make screw drive case adopt horizontal layout, and it is arranged in the lower section that supervisor is anterior, it is effectively utilized the space of supervisor's lower front, and screw drive case is tightly combined with frame, can effectively reduce the volume of tiller；Screw drive case front end adopts fore-stock suspended fixing on crossbeam, and rear end face abuts on two pieces of location-plates, and is connected by bolt and two pieces of location-plates, and it is very easy that operation installed by such screw drive case, can ensure that the fixing that screw drive case is installed.
Trailing wheel, wheel shaft and long strip block composition rear wheel assembly, this rear wheel assembly has to be packed up and puts down two states.When the fastening point of long strip block is connected by bolt and the first trailing wheel installing hole, trailing wheel is in down state, and now front end can be tilted by tiller, walks for supporting with trailing wheel, not only walks convenient, and eliminates dismounting and plough the trouble of cutter；When the fastening bolt unclamping long strip block, make rear wheel assembly rotate to an angle, then when the fastening point of long strip block being connected by bolt and the second trailing wheel installing hole, trailing wheel is in collapsed state, now can carry out farming operation, and farming will not be caused any adverse effect by trailing wheel.The present invention is that rear wheel assembly provides alternative installation point, makes trailing wheel assembling simple, and it is easy to operate, quick to switch state, thus substantially increasing the convenience that tiller uses.
As preferably, there is between the horizontal segment of described bumper (1a) and supervisor (1) angle of 130 150 °.
For the ease of processing and fabricating, increase the structural strength of crossbeam, prevent deformation, described crossbeam (2) is rectangular flat structure, front and the back of crossbeam (2) all bend downwards, form flange, and on crossbeam (2), have two strip holes (2a) side by side in left and right.
In order to increase the structural strength of supporting plate, prevent deformation, it is easily installed electromotor adjusting position, described supporting plate (3) is rectangular flat structure, front and the back of supporting plate (3) all bend downwards, form flange, and on supporting plate (3), have four bar holes (3a) by the rectangular distribution.
The right part of location-plate (10) end face is welded with block (9) on described, and this block (9) is pane structure.Block moulding is simple, it is easy to makes and installs, and the fixing that block is installed on upper location-plate is good；Block is for spacing to belt-tensioner arm, to prevent belt-tensioner arm and belt guard from interfering.
Beneficial effect: the present invention not only moulding is simple, compact conformation, compact, processing and fabricating is easy, and cost is low, and is easy to electromotor, screw drive case, trailing wheel etc. and arranges, is conducive to tiller to develop to miniaturization；Trailing wheel can be packed up as required or put down, and retractable operation is simple, quick, can be effectively improved the work efficiency of tiller；Screw drive case adopts horizontal installation, can reduce tiller volume further, and screw drive case firmly installs, reliably, stationarity is good.
Accompanying drawing explanation
Fig. 1 is the state diagram that trailing wheel puts down.
Fig. 2 is the state diagram that trailing wheel is packed up.
Fig. 3 is the structural representation of frame.
Fig. 4 is the top view of Fig. 3.
Fig. 5 is the left view of Fig. 3.
Fig. 6 is the structural representation of wheel shaft and long strip block.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described:
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, frame by being responsible for 1, crossbeam 2, supporting plate 3, plug 4, bend pipe 5, inclined tube 6, transverse tube 7, positioning sleeve 8, block 9, upper location-plate 10 and lower location-plate 11 etc. constitute.Wherein, supervisor 1 is the " u "-shaped of front end closed rear end opening, and the front end of this supervisor 1 is upturned, and forms bumper 1a.Except bumper 1a, the remainder of supervisor 1 is the horizontal segment that the right and left is arranged symmetrically with, and has the angle of 130 150 ° between the horizontal segment of described bumper 1a and supervisor 1.Front portion between 1 two horizontal segments of supervisor is provided with crossbeam 2, and crossbeam 2 is rectangular flat structure, and the end of this crossbeam 2 is welded and fixed with the pipe shaft of supervisor's 1 corresponding horizontal segment.Front and the back of crossbeam 2 all bend downwards, form flange, and have two the strip hole 2a side by side in left and right on crossbeam 2.Being arranged below fore-stock 16 at crossbeam 2, bolt is through the strip hole 2a on crossbeam 2 and the pilot hole on fore-stock 16, by fore-stock 16 suspended fixing on crossbeam 2.Two ends, left and right bottom fore-stock 16 are connected with the top of screw drive case 15 front end by bolt, and screw drive case 15 adopts horizontal layout, and power shaft and the output shaft of screw drive case 15 are arranged on horizontal plane.
As shown in Figure 3, Figure 4, the middle part between 1 two horizontal segments of supervisor is provided with supporting plate 3, and this supporting plate 3 is rectangular flat structure, and the end of supporting plate 3 is welded and fixed with the pipe shaft of supervisor's 1 corresponding horizontal segment.Having four bar hole 3a on supporting plate 3 by the rectangular distribution, front and the back of supporting plate 3 all bend downwards, form flange.Tail end at supervisor's 1 every horizontal segment is equipped with plug 4, and the front portion of plug 4 is filled in and is fixed on the tail end of supervisor 1, offers installing hole 4a on handle bracket in left-right direction at the rear portion of plug 4.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, the lower section at supervisor 1 every horizontal segment rear portion is provided with bend pipe 5, and the bend pipe 5 of the right and left is symmetrical.Bend pipe 5 is " V " shape, the first straight section 5a, arc transition section 5b and the second straight section 5c are connected in turn.First straight section 5a of bend pipe 5 vertically arranges, the upper end of this first straight section 5a and the bottom welding being responsible for 1 respective side horizontal segment are fixed.Offering installing hole 5d under handle bracket in the bottom of the first straight section 5a, under this handle bracket, on installing hole 5d and handle bracket, installing hole 4a is used for connecting handle bracket.Being provided with the upper location-plate 10 being parallel to each other and lower location-plate 11 between the first straight section 5a of the right and left bend pipe 5, the end of these two pieces of location-plates 10,11 and respective side bend pipe 5 are welded and fixed.The rear end face of screw drive case 15 abuts on location-plate 10 and lower location-plate 11, and the bolt that screw drive case 15 is worn by fore-and-aft direction is fixed together with upper location-plate 10 and lower location-plate 11 respectively.Right part at upper location-plate 10 end face is welded with block 9, and this block 9 is pane structure, and block 9 is for spacing to belt-tensioner arm.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, the second straight section 5c of bend pipe 5 is positioned at the rear side of the first straight section 5a, and the second straight section 5c is low early and high after is in tilted layout.Be equipped with inclined tube 6 at the rear of every bend pipe 5, before inclined tube 6, after height, low dip is arranged, the inclined tube 6 of the right and left is symmetrical.The upper end of inclined tube 6 and the bottom welding being responsible for 1 respective side horizontal segment tail end are fixed, it is provided with transverse tube 7 between the inclined tube 6 of two, left and right, the end of the lower end of inclined tube 6 and transverse tube 7 is welded and fixed, the rear end of the right and left bend pipe 5 second straight section 5c is welded on the corresponding end of transverse tube 7, and the bend pipe 5 of the same side, inclined tube 6 are in the same plane.Offer the first trailing wheel installing hole 6a at the middle part of inclined tube 6, the second straight section 5c of bend pipe 5 offers the second trailing wheel installing hole 5e, the same side the first trailing wheel installing hole 6a equal to the distance of transverse tube 7 with the second trailing wheel installing hole 5e to the distance of transverse tube 7.Dead astern in the middle part of described transverse tube 7 arranges positioning sleeve 8, and this positioning sleeve 8 is welded on transverse tube 7, and positioning sleeve 8 is used for installing resistance rod.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 6, being symmetrical arranged trailing wheel 12 in the left and right sides of transverse tube 7 back lower place, this trailing wheel 12 is set in the end of wheel shaft 13 rotationally.Wheel shaft 13 is symmetrically arranged with two long strip block 14 in left and right, the two long strip block 14 and two inclined tube 6 one_to_one corresponding.The rear end vertical welding of described long strip block 14 is on wheel shaft 13, the middle part of long strip block 14 is hinged with the end of transverse tube 7 by pin, the front end of long strip block 14 is connected with the first trailing wheel installing hole 6a on respective side inclined tube 6 by bolt, and now trailing wheel is down state (see Fig. 1)；Or, the front end of long strip block 14 is connected with the second trailing wheel installing hole 5e on respective side bend pipe 5 by bolt, and now trailing wheel is collapsed state (see Fig. 2).
Claims (3)
- null1. a portable tiller rear wheel assembly and transmission case arrangement，Including screw drive case (15) and frame，It is characterized in that: described frame has supervisor (1)，The " u "-shaped that this supervisor (1) is front end closed rear end opening，The front end of supervisor (1) is upturned，Form bumper (1a)，Front portion between (1) two horizontal segment of supervisor is provided with crossbeam (2)，The pipe shaft of the end of this crossbeam (2) horizontal segment corresponding to supervisor (1) is welded and fixed，And the upper end of crossbeam (2) and fore-stock (16) fixes，The two ends, left and right of fore-stock (16) bottom are connected with the top of screw drive case (15) front end by bolt，Power shaft and the output shaft of screw drive case (15) are arranged on horizontal plane，Middle part between (1) two horizontal segment of supervisor is provided with supporting plate (3)，The pipe shaft of the end of this supporting plate (3) horizontal segment corresponding to supervisor (1) is welded and fixed，At the tail end plug of described supervisor (1) every horizontal segment equipped with plug (4)，The rear portion of plug (4) offers installing hole on handle bracket (4a) in left-right direction；It is provided with bend pipe (5) in the lower section at supervisor (1) every horizontal segment rear portion, this bend pipe (5) is " V " shape, by the first straight section (5a), arc transition section (5b) and the second straight section (5c) are connected in turn, the upper end of described first straight section (5a) and the bottom welding being responsible for (1) respective side horizontal segment are fixed, installing hole (5d) under handle bracket is offered in the bottom of the first straight section (5a), and it is provided with location-plate (10) and lower location-plate (11) between first straight section (5a) of the right and left bend pipe (5), the end of these two pieces of location-plates and respective side bend pipe (5) fix；The rear end face of described screw drive case (15) abuts on location-plate (10) and lower location-plate (11), and the bolt that screw drive case (15) is worn by fore-and-aft direction is fixed together with upper location-plate (10) and lower location-plate (11) respectively；It is equipped with inclined tube (6) at the rear of every bend pipe (5), after inclined tube (6) front height, low dip is arranged, the upper end of inclined tube (6) and the bottom welding being responsible for (1) respective side horizontal segment tail end are fixed, it is provided with transverse tube (7) between the inclined tube (6) of two, left and right, the end of the lower end of inclined tube (6) and transverse tube (7) fixes, the rear end of the right and left bend pipe (5) second straight section (5c) is welded on transverse tube (7), the first trailing wheel installing hole (6a) is offered at the middle part of described inclined tube (6), second straight section (5c) of bend pipe (5) offers the second trailing wheel installing hole (5e), the same side the first trailing wheel installing hole (6a) is equal to the distance of transverse tube (7) with the second trailing wheel installing hole (5e) to the distance of transverse tube (7)；It is symmetrical arranged trailing wheel (12) in the left and right sides of described transverse tube (7) back lower place, this trailing wheel (12) is set in the end of wheel shaft (13) rotationally, wheel shaft (13) is symmetrically arranged with two long strip block (14) in left and right, the two long strip block (14) and two inclined tube (6) one_to_one corresponding, one end vertical welding of described long strip block (14) is on wheel shaft (13), the middle part of long strip block (14) is hinged with the end of transverse tube (7) by pin, the other end of long strip block (14) is connected with the first trailing wheel installing hole (6a) on respective side inclined tube (6) or the second trailing wheel installing hole (5e) on bend pipe (5) by bolt；There is between the horizontal segment of described bumper (1a) and supervisor (1) angle of 130 150 °；The right part of location-plate (10) end face is welded with block (9) on described, and this block (9) is pane structure.
- 2. portable tiller rear wheel assembly according to claim 1 and transmission case arrangement, it is characterized in that: described crossbeam (2) is rectangular flat structure, front and the back of crossbeam (2) all bend downwards, form flange, and on crossbeam (2), have two strip holes (2a) side by side in left and right.
- 3. portable tiller rear wheel assembly according to claim 1 and transmission case arrangement, it is characterized in that: described supporting plate (3) is rectangular flat structure, front and the back of supporting plate (3) all bend downwards, form flange, and on supporting plate (3), have four bar holes (3a) by the rectangular distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410284759.7A CN104071227B (en) | 2014-06-23 | 2014-06-23 | A kind of portable tiller rear wheel assembly and transmission case arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410284759.7A CN104071227B (en) | 2014-06-23 | 2014-06-23 | A kind of portable tiller rear wheel assembly and transmission case arrangement |
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| Publication Number | Publication Date |
|---|---|
| CN104071227A CN104071227A (en) | 2014-10-01 |
| CN104071227B true CN104071227B (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410284759.7A Active CN104071227B (en) | 2014-06-23 | 2014-06-23 | A kind of portable tiller rear wheel assembly and transmission case arrangement |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363028A (en) * | 2013-07-31 | 2013-10-23 | 重庆嘉木机械有限公司 | Driving box for mini-tiller |
| CN103355012A (en) * | 2013-07-31 | 2013-10-23 | 重庆嘉木机械有限公司 | Mini-tiller |
| RO128965A2 (en) * | 2012-05-14 | 2013-11-29 | Institutul Naţional De Cercetare-Dezvoltare Pentru Maşini Şi Instalaţii Destinate Agriculturii Şi Industriei Alimentare | High precision sprinkling machine |
| CN203996439U (en) * | 2014-06-23 | 2014-12-10 | 重庆嘉木机械有限公司 | Portable tiller rear wheel assembly and transmission gearbox arrangement structure |
-
2014
- 2014-06-23 CN CN201410284759.7A patent/CN104071227B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RO128965A2 (en) * | 2012-05-14 | 2013-11-29 | Institutul Naţional De Cercetare-Dezvoltare Pentru Maşini Şi Instalaţii Destinate Agriculturii Şi Industriei Alimentare | High precision sprinkling machine |
| CN103363028A (en) * | 2013-07-31 | 2013-10-23 | 重庆嘉木机械有限公司 | Driving box for mini-tiller |
| CN103355012A (en) * | 2013-07-31 | 2013-10-23 | 重庆嘉木机械有限公司 | Mini-tiller |
| CN203996439U (en) * | 2014-06-23 | 2014-12-10 | 重庆嘉木机械有限公司 | Portable tiller rear wheel assembly and transmission gearbox arrangement structure |
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