CN214385013U - Variable speed transmission structure for mini-tiller - Google Patents
Variable speed transmission structure for mini-tiller Download PDFInfo
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- CN214385013U CN214385013U CN202120499724.0U CN202120499724U CN214385013U CN 214385013 U CN214385013 U CN 214385013U CN 202120499724 U CN202120499724 U CN 202120499724U CN 214385013 U CN214385013 U CN 214385013U
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Abstract
The utility model provides a machine a little and use variable speed transmission structure, including main shaft, walking case drive assembly and cutter drive assembly, the one end of main shaft is power input end, and the other end of main shaft and cutter drive assembly transmission cooperation are provided with first adjusting gear with control cutter in order to slide on the main shaft, and the main shaft is through first adjusting gear and walking case drive assembly transmission cooperation in order to control the walking case. The utility model discloses a variable speed drive structure makes the cutter have the fender position of corotation, neutral gear, reversal, and the walking case has the fender position of high-speed, neutral gear, reverse gear, low-speed, both combine together can be better satisfy and the multiple operation function of adaptation and the operation condition. The utility model discloses still have the walking and advance and two kinds of modes that the walking backs, the walking advances for the preswirl machine advances, and the walking backs for the backswirl machine advances, adjusts through the many fender position under two kinds of modes, can the preswirl but the backswirl again to satisfy more operation functions and operation condition.
Description
Technical Field
The utility model relates to a transmission technical field, specific quick-witted variable speed drive structure is ploughed to declining that says so.
Background
The mini-tiller uses a small diesel engine or a gasoline engine as power, has the characteristics of light weight, small volume, simple structure and the like, and is widely applicable to dry lands, paddy fields, orchards and the like in plains, mountainous areas and hills. The tractor can pump water, generate electricity, spray pesticide, spray and other operations when matched with corresponding machines, can also pull the trailer to carry out short-distance transportation, can freely run in the field by the mini-tiller, is convenient for users to use and store, saves the trouble that large agricultural machinery can not enter mountain fields, and is the best choice for vast farmers to replace cattle farming.
The mini-tiller needs to meet more and more operation functions in the development process, such as ditching, rotary tillage, paddy field digging and the like, different operation functions correspond to different operation conditions, such as forward rotary tillage, backward rotary tillage, weeding and the like, different operation conditions need to be adjusted to a proper gear by a gearbox, and the existing mini-tiller is either forward rotary or backward rotary, has poor flexibility and is difficult to meet more and more operation requirements by the corresponding gearbox.
SUMMERY OF THE UTILITY MODEL
In order to solve the not enough among the prior art, the utility model provides a plough quick-witted variable speed transmission structure a little, aim at making the variable speed of ploughing the machine a little and can satisfy more operation demands, better adaptation is to in the operation function of difference.
In order to achieve the above object, the utility model discloses a concrete scheme does: a variable-speed transmission structure for a mini-tiller comprises a main shaft, a walking box transmission assembly and a cutter transmission assembly, wherein one end of the main shaft is a power input end, the other end of the main shaft is in transmission fit with the cutter transmission assembly to control a cutter, a first adjusting gear is arranged on the main shaft in a sliding mode, and the main shaft is in transmission fit with the walking box transmission assembly through the first adjusting gear to control a walking box;
the walking box transmission component comprises a first intermediate shaft, a second intermediate shaft and a walking box input shaft which are arranged at intervals with the main shaft, a first intermediate gear, a second intermediate gear and a third intermediate gear are arranged on the first intermediate shaft at intervals, the second intermediate gear can rotate relative to the first intermediate shaft, a fourth intermediate gear is arranged on the second intermediate shaft and is meshed with the third intermediate gear, one end of the walking box input shaft is the walking box input end, a second adjusting gear and a fifth intermediate gear are arranged on the walking box input shaft, the second adjusting gear can slide relative to the walking box input shaft, a first fork groove for inserting the first shifting fork is formed in the first adjusting gear, a second fork groove for inserting the second shifting fork is formed in the second adjusting gear, and the positions of the first adjusting gear and the second adjusting gear on the main shaft and the walking box input shaft can be adjusted through the first shifting fork and the second shifting fork, the first adjusting gear can be meshed with the first intermediate gear, the second intermediate gear and the fourth intermediate gear respectively, the second adjusting gear can be meshed with the first intermediate gear, the second intermediate gear respectively or is connected with a fifth intermediate gear, and the fifth intermediate gear can rotate relative to the input shaft of the walking box and is meshed with the third intermediate gear;
the cutter transmission assembly comprises a gear sleeve, a sixth intermediate gear and a cutter input shaft, the gear sleeve is arranged on the main shaft, the sixth intermediate gear is arranged on the first intermediate shaft, one end of the cutter input shaft is a cutter input end, a third adjusting gear is arranged on the cutter input shaft in a sliding mode, a third fork groove for a third shifting fork to enter is formed in the third adjusting gear, the position of the third adjusting gear on the cutter input shaft is adjusted through the third shifting fork, and then the third adjusting gear is connected into the gear sleeve or meshed with the sixth intermediate gear.
As a further optimization of the above technical solution: the second adjusting gear is provided with a protrusion, and the fifth intermediate gear is provided with a groove for the protrusion to insert and be jointed.
As a further optimization of the above technical solution: the main shaft, the first intermediate shaft and the second intermediate shaft are distributed in a triangular shape.
As a further optimization of the above technical solution: and the second intermediate gear and the fifth intermediate gear are respectively connected with the first intermediate shaft and the input shaft of the walking box through thimble bearings.
As a further optimization of the above technical solution: the inner walls of the first adjusting gear, the second adjusting gear and the third adjusting gear are all provided with sliding keys, and key grooves for the sliding keys to enter are formed in the main shaft, the walking box input shaft and the cutter input shaft.
Compared with the prior art, the beneficial effects of the utility model are as follows:
1) the utility model has the advantages that the variable speed transmission structure enables the cutter to have forward, neutral and reverse gears, the walking box has high-speed, neutral, reverse and low-speed gears, and the combination of the two can better satisfy and adapt to various operation functions and operation conditions;
2) the utility model has two modes of walking forward and walking backward, the walking forward is forward of the front rotary machine, the walking backward is forward of the rear rotary machine, and the front rotary and the rear rotary can be realized through multi-gear adjustment under the two modes, thereby meeting more operation functions and operation conditions;
3) the utility model discloses a variable speed drive structure still can realize the walking case and adorn in reverse to make relevant personnel advance and walk under the two kinds of modes that go back, all can operate the fender position of walking case in suitable position, it is more convenient.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic view of the walking forward mode;
FIG. 3 is a schematic view of the engagement of the high-speed gear of the traveling box in the traveling forward mode;
FIG. 4 is a schematic view of the engagement of the reverse gear of the traveling box in the forward traveling mode;
FIG. 5 is a schematic view of the engagement of the low-speed gear of the traveling box in the traveling forward mode;
FIG. 6 is a schematic view of the engagement of the travel box neutral gear in the travel forward mode;
FIG. 7 is a schematic view of a walk-back mode;
FIG. 8 is a schematic view of the high-speed gear engagement of the travel box in a travel reverse mode;
FIG. 9 is a schematic view of another high-speed gear engagement of the travel box in a travel reverse mode;
FIG. 10 is a schematic view of the travel case low gear engagement in a travel reverse mode;
the labels in the figure are: 1. the tool comprises a first shifting fork, 2, a main shaft, 201, a power input end, 202, a first adjusting gear, 203, a gear sleeve, 3, a walking box input shaft, 301, a walking box input end, 302, a second adjusting gear, 3021, a protrusion, 303, a fifth intermediate gear, 3031, a groove, 4, a first intermediate shaft, 401, the first intermediate gear, 402, a second intermediate gear, 403, a third intermediate gear, 404, a sixth intermediate gear, 5, a tool input shaft, 501, a tool input end, 502, the third adjusting gear, 6, the second intermediate shaft, 601, a fourth intermediate gear, 7, a second shifting fork, 8 and a third shifting fork.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to the attached drawings, the variable-speed transmission structure for the mini-tiller comprises a main shaft 2, a walking box transmission assembly and a cutter transmission assembly, wherein one end of the main shaft 2 is a power input end 201, the power input end 201 is connected with a diesel engine output shaft of the mini-tiller, the other end of the main shaft 2 is in transmission fit with the cutter transmission assembly to control a cutter, a first adjusting gear 202 is arranged on the main shaft 2 in a sliding mode, and the main shaft 2 is in transmission fit with the walking box transmission assembly through the first adjusting gear 202 to control the walking box.
The walking box transmission component comprises a first intermediate shaft 4, a second intermediate shaft 6 and a walking box input shaft 3 which are arranged at intervals with the main shaft 2, the first intermediate shaft 4 and the second intermediate shaft 6 are distributed in a triangular shape, a first intermediate gear 401, a second intermediate gear 402 and a third intermediate gear 403 are arranged on the first intermediate shaft 4 at intervals, the second intermediate gear 402 can rotate relative to the first intermediate shaft 4, namely the second intermediate shaft does not rotate synchronously with the first intermediate shaft 4, a fourth intermediate gear 601 is arranged on the second intermediate shaft 6, the fourth intermediate gear 601 is meshed with the third intermediate gear 403, one end of the walking box input shaft 3 is a walking box input end 301 and is connected with the walking box assembly, a second adjusting gear 302 and a fifth intermediate gear 303 are arranged on the walking box input shaft 3, the second adjusting gear 302 can slide relative to the walking box input shaft 3, a first fork groove for inserting the first shifting fork 1 is arranged on the first adjusting gear 202, the second adjusting gear 302 is provided with second fork grooves for the second shifting fork 7 to enter, the positions of the first adjusting gear 202 and the second adjusting gear 302 on the main shaft 2 and the walking box input shaft 3 can be adjusted through the first shifting fork 1 and the second shifting fork 7, so that the first adjusting gear 202 can be respectively meshed with a first intermediate gear 401, a second intermediate gear 402 and a fourth intermediate gear 601, the second adjusting gear 302 can be respectively meshed with the first intermediate gear 401, the second intermediate gear 402 or connected with a fifth intermediate gear 303, wherein, the left side and the right side of the first adjusting gear 202 can be simultaneously meshed with the first intermediate gear 401 and the second intermediate gear 402 or meshed with the second intermediate gear 402 and the third intermediate gear 403, the fifth intermediate gear 303 can rotate relative to the walking box input shaft 3, namely can not synchronously rotate with the walking box input shaft 3 and is meshed with the third intermediate gear 403, a groove 3031 is arranged on the fifth intermediate gear 303, a bulge 3021 is arranged on the corresponding second adjusting gear 302, the second adjusting gear 302 can be inserted into the groove 3031 on the fifth intermediate gear 303 through the bulge 3021 to be jointed with the fifth intermediate gear 303 and rotate in the same direction, and the second intermediate gear 402 and the fifth intermediate gear 303 are respectively connected with the first intermediate shaft 4 and the walking box input shaft 3 through thimble bearings.
The tool transmission component comprises a gear sleeve 203, a sixth intermediate gear 404 and a tool input shaft 5, the gear sleeve 203 is arranged at the end part of the spindle 2 far away from the power input end 201, the sixth intermediate gear 404 is arranged on the first intermediate shaft 4, the tool input shaft 5 is arranged at the end part of the spindle 2 far away from the power input end 201 and is aligned with the spindle 2, one end of the tool input shaft 5 is a tool input end 501 and is connected with a tool assembly to drive a tool to rotate, a third adjusting gear 502 is arranged on the tool input shaft 5 in a sliding mode, a third fork groove for a third shifting fork 8 to enter is formed in the third adjusting gear 502, the position of the third adjusting gear 502 on the tool input shaft 5 is adjusted through the third shifting fork 8, and then the third adjusting gear 502 enters the gear sleeve 203 or is meshed with the sixth intermediate gear 404.
The first fork 1, the second fork 7 and the third fork 8 are all connected with a gear shifting and reversing control assembly not shown in the figure to adjust the positions of the first adjusting gear 202, the second adjusting gear 302 and the third adjusting gear 502 on the shaft, which belongs to the prior art and is not described again.
The inner walls of the first adjusting gear 202, the second adjusting gear 302 and the third adjusting gear 502 are all provided with sliding keys, key slots for key positions to enter are arranged on the main shaft 2, the walking box input shaft 3 and the cutter input shaft 5, and the key slots are arranged on the shaft of the adjusting gear corresponding to the positions of gears or modes.
As shown in fig. 2 and 7, in the drawings, three different position states of the third adjusting gear 502 on the tool input shaft 5 correspond to forward rotation, neutral gear and reverse rotation of the tool, the forward rotation is a position where the third adjusting gear 502 enters the gear sleeve 203, at this time, the spindle 2 drives the tool input shaft 5 to rotate, the neutral gear is a position where the third adjusting gear 502 is located outside the gear sleeve 203 and is not meshed with the sixth intermediate gear 404, and the reverse rotation is a position where the third adjusting gear 502 is meshed with the sixth intermediate gear 404, at this time, the first adjusting gear 202 is meshed with a gear on the first intermediate shaft 4 to drive the first intermediate shaft 4 to rotate, and then the sixth intermediate gear 404 rotates, the sixth intermediate gear 404 drives the third adjusting gear 502 to rotate, and finally the tool input shaft 5 rotates reversely.
The gear and mode of the traveling box, i.e., the forward mode of the front-end rotary machine, as shown in fig. 2, the first adjusting gear 202 is adjusted to the right side of the main shaft 2 and meshed with the second intermediate gear 402 and the third intermediate gear 403, i.e., the mode, at this time, four different positions of the second adjusting gear 302 on the traveling box input shaft 3 correspond to the traveling box high speed, neutral, reverse, and low speed, respectively. High-speed gear: as shown in fig. 3, the second adjusting gear 302 is adjusted to a position meshed with the first intermediate gear 401, at this time, the first adjusting gear 202 drives the fourth intermediate gear 601 to rotate, the fourth intermediate gear 601 drives the third intermediate gear 403 to rotate, the first intermediate shaft 4 rotates, the first intermediate shaft 4 drives the first intermediate gear 401 to rotate, the first intermediate gear 401 drives the second adjusting gear 302 to rotate, and finally the walking box input shaft 3 is driven to rotate; neutral gear: as shown in fig. 1 and 6, the neutral state in fig. 1 is a neutral state, which is slightly different, and the first adjusting gear 202 needs to be adjusted to a position only meshed with the second intermediate gear 402, i.e. exiting from the forward walking mode or the reverse walking mode, at this time, the second intermediate gear 402 idles on the first intermediate shaft 4, but the first intermediate shaft 4 does not rotate, and then the second adjusting gear 302 is adjusted to be not meshed with the gear on the first intermediate shaft 4; reversing gear: as shown in fig. 4, the second adjusting gear 302 is adjusted to a position meshed with the second intermediate gear 402, at this time, the first adjusting gear 202 drives the second intermediate gear 402 to rotate, the second intermediate gear 402 drives the second adjusting gear 302 to rotate, and finally the input shaft 3 of the traveling box rotates reversely; low-speed gear: as shown in fig. 5, the second adjusting gear 302 is adjusted to a position where the protrusion 3021 thereon is inserted into the groove 3031 of the fifth intermediate gear 303, at this time, the first adjusting gear 202 drives the fourth intermediate gear 601 to rotate, the fourth intermediate gear 601 drives the third intermediate gear 403 to rotate, the third intermediate gear 403 drives the fifth intermediate gear 303 to rotate, the fifth intermediate gear 303 drives the second adjusting gear 302 to rotate, and finally the input shaft 3 of the walking box rotates.
The backward traveling mode is a forward traveling mode in which the front rotary machine is moving backward and the rear rotary machine is moving forward, and as shown in fig. 7, the first adjusting gear 202 is adjusted to the left side of the main shaft 2 and is engaged with the first intermediate gear 401 and the second intermediate gear 402, that is, this mode, at this time, four different positions of the second adjusting gear 302 on the traveling box input shaft 3 correspond to the traveling box high speed, neutral, high speed, and low speed, respectively, and it is worth noting that there are two high-speed gears, the first high-speed gear: as shown in fig. 8, the second adjusting gear 302 is adjusted to a position meshed with the first intermediate gear 401, at this time, the first adjusting gear 202 drives the first intermediate gear 401 to rotate, the first intermediate gear 401 drives the second adjusting gear 302 to rotate, and finally the input shaft 3 of the walking box rotates; neutral gear: the gear is the same as the gear, namely, the mode of walking forward or walking reverse is exited, and the description is omitted; the other high-speed gear: as shown in fig. 9, the second adjusting gear 302 is adjusted to a position meshed with the second intermediate gear 402, at this time, the first adjusting gear 202 drives the second intermediate gear 402 to rotate, the second intermediate gear 402 drives the second adjusting gear 302 to rotate, and finally the input shaft 3 of the traveling box rotates; low-speed gear: as shown in fig. 10, the second adjusting gear 302 is adjusted to a position where the protrusion 3021 thereon enters the groove 3031 of the fifth intermediate gear 303, at this time, the first adjusting gear 202 drives the first intermediate gear 401 to rotate, the first intermediate gear 401 drives the first intermediate shaft 4 to rotate, and further the third intermediate gear 403 rotates, the third intermediate gear 403 drives the fifth intermediate gear 303 to rotate, the fifth intermediate gear 303 drives the second adjusting gear 302 to rotate, and finally the input shaft of the walking box rotates.
And the reverse arrangement of the walking boxes is 180 degrees, the gears corresponding to the walking boxes in the original walking forward mode are changed into the gears corresponding to the walking boxes in the original walking reverse mode, and the gears corresponding to the walking boxes in the original walking reverse mode are changed into the gears corresponding to the walking boxes in the original walking forward mode.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. The utility model provides a plough quick-witted variable speed transmission structure a little, its characterized in that: the automatic cutting machine comprises a main shaft (2), a walking box transmission assembly and a cutter transmission assembly, wherein one end of the main shaft (2) is a power input end (201), the other end of the main shaft (2) is in transmission fit with the cutter transmission assembly to control a cutter, a first adjusting gear (202) is arranged on the main shaft (2) in a sliding mode, and the main shaft (2) is in transmission fit with the walking box transmission assembly through the first adjusting gear (202) to control a walking box;
the walking box transmission component comprises a first intermediate shaft (4), a second intermediate shaft (6) and a walking box input shaft (3), wherein the first intermediate shaft (4) is arranged at intervals with the main shaft (2), the first intermediate shaft (4) is provided with a first intermediate gear (401), a second intermediate gear (402) and a third intermediate gear (403) at intervals, the second intermediate gear (402) can be arranged in a rotating way relative to the first intermediate shaft (4), the second intermediate shaft (6) is provided with a fourth intermediate gear (601), the fourth intermediate gear (601) is meshed with the third intermediate gear (403), one end of the walking box input shaft (3) is a walking box input end (301), the walking box input shaft (3) is provided with a second adjusting gear (302) and a fifth intermediate gear (303), the second adjusting gear (302) can slide relative to the walking box input shaft (3), the first adjusting gear (202) is provided with a first fork groove for inserting a first shifting fork (1), a second fork groove for inserting a second shifting fork (7) is formed in the second adjusting gear (302), the positions of the first adjusting gear (202) and the second adjusting gear (302) on the main shaft (2) and the walking box input shaft (3) can be adjusted through the first shifting fork (1) and the second shifting fork (7), so that the first adjusting gear (202) can be meshed with a first intermediate gear (401), a second intermediate gear (402) and a fourth intermediate gear (601) respectively, the second adjusting gear (302) can be meshed with the first intermediate gear (401), the second intermediate gear (402) or a fifth intermediate gear (303), and the fifth intermediate gear (303) can rotate relative to the walking box input shaft (3) and is meshed with the third intermediate gear (403);
the cutter transmission assembly comprises a gear sleeve (203), a sixth intermediate gear (404) and a cutter input shaft (5), the gear sleeve (203) is arranged on the main shaft (2), the sixth intermediate gear (404) is arranged on the first intermediate shaft (4), one end of the cutter input shaft (5) is provided with a cutter input end (501), a third adjusting gear (502) is arranged on the cutter input shaft (5) in a sliding mode, a third fork groove for a third shifting fork (8) to enter is formed in the third adjusting gear (502), the position of the third adjusting gear (502) on the cutter input shaft (5) is adjusted through the third shifting fork (8), and then the third adjusting gear (502) is connected into the gear sleeve (203) or meshed with the sixth intermediate gear (404).
2. The variable speed transmission structure for the micro-cultivator of claim 1, wherein: the second adjusting gear (302) is provided with a bulge (3021), and the fifth intermediate gear (303) is provided with a groove (3031) for the bulge (3021) to insert and engage.
3. The variable speed transmission structure for the micro-cultivator of claim 1, wherein: the main shaft (2), the first intermediate shaft (4) and the second intermediate shaft (6) are distributed in a triangular shape.
4. The variable speed transmission structure for the micro-cultivator of claim 1, wherein: the second intermediate gear (402) and the fifth intermediate gear (303) are respectively connected with the first intermediate shaft (4) and the walking box input shaft (3) through thimble bearings.
5. The variable speed transmission structure for the micro-cultivator of claim 1, wherein: the inner walls of the first adjusting gear (202), the second adjusting gear (302) and the third adjusting gear (502) are all provided with sliding keys, and key grooves for the sliding keys to enter are formed in the main shaft (2), the walking box input shaft (3) and the cutter input shaft (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120499724.0U CN214385013U (en) | 2021-03-09 | 2021-03-09 | Variable speed transmission structure for mini-tiller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120499724.0U CN214385013U (en) | 2021-03-09 | 2021-03-09 | Variable speed transmission structure for mini-tiller |
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| Publication Number | Publication Date |
|---|---|
| CN214385013U true CN214385013U (en) | 2021-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120499724.0U Active CN214385013U (en) | 2021-03-09 | 2021-03-09 | Variable speed transmission structure for mini-tiller |
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| CN (1) | CN214385013U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114128430A (en) * | 2021-11-30 | 2022-03-04 | 重庆华世丹农业装备制造有限公司 | Speed changer of mini-tiller |
-
2021
- 2021-03-09 CN CN202120499724.0U patent/CN214385013U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114128430A (en) * | 2021-11-30 | 2022-03-04 | 重庆华世丹农业装备制造有限公司 | Speed changer of mini-tiller |
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