CN115443744B - Braking steering control mechanism of self-propelled crawler-type rotary cultivator - Google Patents
Braking steering control mechanism of self-propelled crawler-type rotary cultivator Download PDFInfo
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- CN115443744B CN115443744B CN202211335577.9A CN202211335577A CN115443744B CN 115443744 B CN115443744 B CN 115443744B CN 202211335577 A CN202211335577 A CN 202211335577A CN 115443744 B CN115443744 B CN 115443744B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 39
- 230000005540 biological transmission Effects 0.000 claims abstract description 40
- 238000003971 tillage Methods 0.000 claims description 68
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 210000000078 claw Anatomy 0.000 claims description 16
- 230000008859 change Effects 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 230000009467 reduction Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B33/00—Tilling implements with rotary driven tools, e.g. in combination with fertiliser distributors or seeders, with grubbing chains, with sloping axles, with driven discs
- A01B33/08—Tools; Details, e.g. adaptations of transmissions or gearings
- A01B33/082—Transmissions; Gearings; Power distribution
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B33/00—Tilling implements with rotary driven tools, e.g. in combination with fertiliser distributors or seeders, with grubbing chains, with sloping axles, with driven discs
- A01B33/08—Tools; Details, e.g. adaptations of transmissions or gearings
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B69/00—Steering of agricultural machines or implements; Guiding agricultural machines or implements on a desired track
- A01B69/007—Steering or guiding of agricultural vehicles, e.g. steering of the tractor to keep the plough in the furrow
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Power Engineering (AREA)
- Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)
Abstract
The brake steering control mechanism of the self-propelled crawler rotary cultivator comprises a brake and a bracket, wherein the bracket is arranged on a tractor walking gearbox body, a steering shaft, a gear shaft and a driving shaft are sequentially arranged in the tractor walking gearbox body in a power transmission manner, steering shifting forks are respectively arranged at two steering gears on the steering shaft, and a left shifting fork arm and a right shifting fork arm are correspondingly arranged on the two steering shifting forks; the left operating lever with the left pushing plate and the right operating lever with the right pushing plate are arranged on the support, the left mounting column and the right mounting column are arranged on the support, the left rotating seat with the left roller and the right rotating seat with the right roller are correspondingly and rotatably arranged on the left mounting column and the right mounting column, the left roller and the right roller are correspondingly positioned between the left pushing plate, the left shifting fork arm, the right pushing plate and the right shifting fork arm, and the left operating lever and the right operating lever are correspondingly connected with the left braking arm and the right braking arm through a linkage mechanism respectively. The brake steering control mechanism is simple to operate, and can ensure the steering of the self-propelled crawler rotary cultivator to be flexible and reliable.
Description
Technical Field
The invention relates to the technical field of agricultural machinery, in particular to a braking steering control mechanism of a self-propelled crawler rotary cultivator.
Background
At present, with the continuous and deep development of special agriculture and efficient agriculture in China, rural labor force is transferred to cities, the requirements of people on advanced technology and advanced performance of agricultural machinery are continuously improved, small-size, large-horsepower, simple-control and comfortable agricultural machinery becomes the development trend of the conventional agricultural rotary tillage machinery, the conventional rotary tillage machinery usually adopts a hand tractor as a power machine head, but the hand tractor has poor driving comfort, a matched engine is small, the anti-sinking capability is poor, the agricultural machinery can only work in dry fields or harder fields, and once the agricultural machinery encounters rainy seasons or paddy fields, the agricultural machinery is easily sunk into muddy soil.
For this reason, self-propelled tracked rotary tillers have been developed, and different types of self-propelled tracked rotary tillers have appeared on the market. The research shows that most of the presently disclosed self-propelled crawler rotary tiller adopts a special gearbox assembly, and has high production cost; in addition, the self-propelled crawler-type rotary cultivator has large turning radius, is inconvenient to turn and is difficult to adapt to cultivation of small plots. Although the walking tractor type rotary cultivator has the defects, the walking tractor is applied for years, the transmission of a walking gearbox of the walking tractor is mature and reliable, and if the transmission system of the walking gearbox can be applied to the self-propelled crawler type rotary cultivator, the design production cost can be greatly reduced. However, if the walking gearbox assembly of the walking tractor is modified into the gearbox assembly of the self-propelled crawler rotary cultivator, the problem that the turning radius is large and the steering is inflexible exists. Therefore, when the walking gearbox assembly of the walking tractor is transformed into the gearbox assembly of the self-propelled crawler rotary cultivator, a set of control mechanism capable of ensuring flexible and reliable steering of the self-propelled crawler rotary cultivator is also required to be designed.
Disclosure of Invention
The invention aims to provide a braking steering control mechanism of a self-propelled crawler rotary cultivator, wherein a gearbox assembly of the self-propelled crawler rotary cultivator is obtained by modifying a walking gearbox assembly of a walking tractor.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the self-propelled crawler rotary cultivator adopts a tractor walking gearbox body, a steering shaft is arranged in the tractor walking gearbox body, a central transmission gear is arranged in the middle of the steering shaft, a steering gear and a steering spring for controlling left and right steering are respectively arranged on the steering shafts on two sides of the central transmission gear, the steering gear is in jogged connection with the central transmission gear, a steering shifting fork is respectively arranged at the two steering gears, a left shifting fork arm and a right shifting fork arm are correspondingly arranged on the two steering shifting forks, the shifting fork arms are used for driving the steering shifting fork to shift the steering gear to slide on the steering shaft and separate from the central transmission gear, after the steering shifting fork is released, the steering gear slides and resets on the steering shaft under the action of the steering spring, the steering gear is in jogged connection with the central transmission gear again, two sides of the tractor walking gearbox body are respectively provided with a driving wheel shaft and a driving wheel shaft, one end of the driving wheel shaft extends out of the gearbox body, the driving wheel shafts on two sides are respectively meshed with corresponding gear shafts through the driving wheel shafts, the driving wheel shafts are respectively meshed with corresponding gear shafts, the corresponding brake shafts are respectively arranged on two sides of the crawler-type travelling wheels through the speed reducing gear and corresponding brake brackets, and the brake arms are respectively arranged on two sides of a brake device, and a brake is used for controlling a brake device; the support is arranged above the front side of the tractor walking gearbox body, the left operating rod and the right operating rod are respectively hinged to the two sides of the support, the left operating rod and the right operating rod are respectively connected with the support through a return spring, the left operating rod and the right operating rod are correspondingly provided with a left pushing plate and a right pushing plate, the support between the left operating rod and the right operating rod is vertically provided with a left mounting column and a right mounting column, the left mounting column and the right mounting column are correspondingly rotated and provided with a left rotating seat and a right rotating seat, the left rotating seat and the right rotating seat are correspondingly provided with a left roller and a right roller, the left roller is positioned between the left pushing plate and a left shifting fork arm, the left pushing plate and the right pushing plate are in an arc shape corresponding to roller ends, when the left operating rod and the right operating rod are operated, the push plate pushes the corresponding shifting fork arm to swing the shifting fork, the shifting fork arm is enabled to enable the steering gear to be separated from the central transmission gear, and when the operating rod is continued to swing, the pushing plate and the roller are kept in an extrusion state, the right roller is positioned between the right pushing plate and the shifting fork arm, the left roller is correspondingly connected with the right adjusting fork and the left adjusting fork and the right adjusting rod correspondingly connected with the left adjusting fork through the left connecting rod and the right connecting rod and the left adjusting fork correspondingly, and the left adjusting fork and the right connecting rod correspondingly are connected with the left adjusting fork and the left adjusting rod and the right connecting rod correspondingly, and the left adjusting fork and the left adjusting rod and the left connecting rod and the left adjusting fork are connected to the left adjusting rod and the left connecting rod and the left adjusting rod and the left fork and the left adjusting rod and the left handle. The brake can adopt any structure, and only needs to be used for controlling the brake to work through linkage mechanism linkage when the steering lever is operated to control the steering arm to toggle the steering shifting fork to steer, and the corresponding gear shaft is braked. The walking gear box body of the tractor adopts the walking gear box body of a Gongnong twelve-type tractor.
Further preferred is: the link mechanism has two structures, the first one: the connecting rod mechanism comprises a lifting rod II and a rotary scissor arm II, wherein the rotary scissor arm II is hinged to a walking gearbox body of the tractor, an upper arm of the rotary scissor arm II is hinged to a connecting fork, when the rotary scissor arm is installed on the left side, the rotary scissor arm II is hinged to a left connecting fork, when the rotary scissor arm is installed on the right side, the rotary scissor arm is hinged to a right connecting fork, a lower arm of the rotary scissor arm II is hinged to a brake arm through the lifting rod II, when the rotary scissor arm is installed on the left side, the rotary scissor arm II is hinged to a left brake arm, and when the rotary scissor arm is installed on the right side, the rotary scissor arm II is hinged to a right brake arm.
The second structure of the connecting rod mechanism is as follows: the connecting rod mechanism comprises a lifting rod I, a rotary scissor arm I, a pull rod and a hinged rotating arm, wherein the rotary scissor arm I is hinged to a tractor walking gearbox body, one end of the lifting rod I is hinged to a brake arm, the lifting rod I is hinged to a left brake arm when being arranged on the left side, the lifting rod I is hinged to a right brake arm when being arranged on the right side, the other end of the lifting rod I is hinged to a lower arm of the rotary scissor arm I, the hinged rotating arm is hinged to a support, one end of the hinged rotating arm is hinged to a connecting fork, the hinged rotating arm is hinged to a left connecting fork when being arranged on the left side, and the other end of the hinged rotating arm is hinged to an upper arm of the rotary scissor arm I through the pull rod when being arranged on the right side.
Further preferred is: the outer end of the gear shaft is provided with a spline shaft body, the brake comprises a brake shell, the brake shell is fixedly arranged on the outer side of a bearing cover of the gear shaft, a brake housing is arranged between the brake shell and the bearing cover, a brake gear, a brake pressure plate and a brake claw are sequentially arranged in the brake shell from inside to outside, the brake gear is arranged on the spline shaft body of the gear shaft, a plurality of brake friction plates and brake steel sheets are alternately arranged in the brake housing, the diameter of the outer ring of each brake friction plate is smaller than the diameter of the inner ring of the corresponding brake housing, the inner ring of each brake friction plate is provided with inner teeth meshed with the corresponding brake gear, the inner ring of each brake steel sheet is provided with a plurality of key grooves, lugs are in sliding connection with the corresponding key grooves, the inner ring of each brake steel sheet is larger than the diameter of the corresponding brake gear, the brake pressure plate is positioned and guided through a positioning pin arranged on the brake shell, the brake claw is in rotary connection with the brake housing, one end of the brake claw extends out of the brake housing, and the extending end of the brake claw is provided with a brake arm. When the gear shaft rotates, the brake gear is driven to rotate, and the brake friction plate is meshed with the brake gear, so that the brake friction plate rotates, when braking is needed, the brake convex claw rotates, the brake pressure plate is extruded to move inwards, the brake pressure plate extrudes the brake steel plate, the brake steel plate slides inwards in the brake housing, the brake friction plate is extruded, the rotation of the brake gear and the gear shaft is limited, and the purpose of steering braking is achieved.
Further preferred is: and a cover backing plate is arranged between the brake cover and the bearing cover.
Further preferred is: the front side of a steering shaft in the tractor walking gearbox body is sequentially provided with a middle shaft, a main speed-changing shaft, a second shaft and a clutch shaft in a transmission way, the middle part of the steering shaft is provided with a central transmission gear, and the steering gears are respectively positioned at two sides of the central transmission gear; an intermediate gear is arranged on the intermediate shaft; the main speed change shaft is provided with a central transmission driving gear, a first-gear driven gear shifted by a first-gear shifting fork and a second-gear driven gear shifted by a second-gear shifting fork; the second shaft is provided with a reverse gear, a first gear driving gear, a second gear driving gear, a rotary tillage driving gear and a third driving gear; a secondary speed change gear and a clutch assembly which are shifted by a secondary speed change shifting fork are arranged on the clutch shaft; the tractor walking gear box body at the lower part of the second shaft is provided with a reverse gear shaft, and the reverse gear shaft is provided with a reverse gear driving gear.
Further preferred is: the top of the tractor walking gearbox body is covered with a gearbox cover, and a secondary gear lever used for controlling a secondary gear shifting fork and a gear lever used for controlling a first gear shifting fork, a second gear shifting fork and a reverse gear shifting fork are arranged on the gearbox cover.
Further preferred is: the rear side of the tractor walking gearbox body is connected with a rotary tillage gearbox, an outwards extending rotary tillage driving shaft is arranged in the rotary tillage gearbox, a driving wheel is arranged at the outer end of the rotary tillage driving shaft, the driving wheel is a driving chain wheel and is in driving connection with a rear rotary tillage mechanism through a chain driving device, a rotary tillage driven gear which is always meshed with a rotary tillage driving gear is arranged on the rotary tillage driving shaft, an internal tooth is arranged on the rotary tillage driven gear, and a rotary tillage high-low gear duplex gear which can be meshed with the rotary tillage driven gear and a first-gear driving gear respectively through stirring of a rotary tillage shifting fork is also arranged on the rotary tillage driving shaft; the rotary tillage high-low gear shifting fork is provided with a rotary tillage operating lever.
Further preferred is: the tractor walking gearbox body is provided with an operating handrail.
The self-propelled crawler rotary cultivator braking and steering control mechanism is designed for the self-propelled crawler rotary cultivator which adopts a walking gearbox of a walking tractor as the walking gearbox, wherein the outer ends of two speed reduction shafts are respectively provided with a brake, the brake is linked with a steering shifting fork arm, when the steering power is ensured to be separated, the brake works to limit the corresponding gear shaft to rotate, the operation is simple, the production cost is low, and the flexible and steering reliability of the self-propelled crawler rotary cultivator is realized.
Drawings
FIG. 1 is a schematic perspective view of a brake steering mechanism of a self-propelled tracked rotary tiller of example 1;
FIG. 2 is a schematic view showing a three-dimensional installation structure of a brake steering mechanism of the self-propelled tracked rotary tiller of embodiment 1;
FIG. 3 is a schematic perspective view of a brake steering mechanism of the self-propelled tracked rotary tiller of example 2;
FIG. 4 is a schematic view showing a three-dimensional installation structure of a brake steering mechanism of the self-propelled tracked rotary tiller of example 2;
FIG. 5 is a schematic diagram of the drive relationship of the tractor traveling gearbox housing;
FIG. 6 is a schematic diagram of the gearing of a rotary tillage gearbox;
FIG. 7 is a schematic view of the mounting structure of the brake;
FIG. 8 is a schematic structural view of a brake gear;
FIG. 9 is a schematic top view of FIG. 8;
FIG. 10 is a schematic structural view of a brake pressure plate;
FIG. 11 is a schematic top view of FIG. 10;
FIG. 12 is a schematic structural view of a brake housing;
FIG. 13 is a schematic top view of FIG. 12;
FIG. 14 is a schematic structural view of a cover plate;
FIG. 15 is a schematic top view of FIG. 14;
FIG. 16 is a schematic structural view of a brake pad;
FIG. 17 is a schematic structural view of a brake steel plate;
the name of the serial number in the figure is:
1. a gear pair, 2, a tractor walking gearbox body, 3, II-gear driving gear, 4, rotary tillage driving gear, 5, III-gear driving gear, 6, II-gear driven gear, 7, central transmission driving gear, 8, steering spring, 9, reduction gear, 10, gear shaft, 11, bearing cover, 12, housing backing plate, 13, brake housing, 14, brake friction plate, 15, brake steel sheet, 16, brake gear, 17, brake pressure plate, 18, brake claw, 19, brake housing, 20, driving gear, 21, driving wheel shaft, 22, steering shaft, 23, steering gear, 24, central transmission gear, 25, intermediate shaft, 26, intermediate gear, 27, main gear shaft, 28, I-gear driven gear, 29, I-gear driving gear, 30, reverse gear, 31, second shaft, 32, clutch shaft, 33, rotary tillage driven gear, 34, rotary tillage high-low gear, 35, rotary tillage driving shaft, 36, rotary tillage gear box, 37, driving wheel, 38, reverse gear driving gear, 39, reverse gear shaft, 40, left brake arm, 41, lifting pull rod I, 42, rotary scissor arm I, 43, bracket, 44, pull rod, 45, hinged rotating arm, 46, left connecting fork, 47, left mounting post, 48, left rotating seat, 49, left adjusting pull rod, 50, right rotating seat, 51, right mounting post, 52, right pushing plate, 53, right operating lever, 54, left operating lever, 55, right roller, 56, right shifting fork arm, 57, left pushing plate, 58, left shifting fork arm, 59, left roller, 60, right brake arm, 61, lifting pull rod II, 62, rotary scissor arm II, 63, right connecting fork, 64, right adjusting pull rod, 65, and reset spring.
Description of the embodiments
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Example 1
A self-propelled crawler rotary cultivator is characterized in that a tractor walking gear box body 2 adopting a work and agriculture twelve-shaped tractor is adopted, a steering shaft 22 is arranged in the tractor walking gear box body 2, a central transmission gear 24 is arranged in the middle of the steering shaft 22, steering gears 23 and a steering spring 8 for controlling left and right steering are respectively arranged on the steering shafts 22 on two sides of the central transmission gear 24, the steering gears 23 are connected with the central transmission gear 24 in a jogging way, steering shifting forks are respectively arranged at the two steering gears 23, a left shifting fork arm 58 and a right shifting fork arm 56 are correspondingly arranged on the two steering shifting forks, the shifting fork arms are used for driving the steering shifting forks to slide on the steering shafts 22 and separate from the central transmission gear 24, after the steering shifting forks are released, under the action of the steering springs 8, the steering gear 23 slides on the steering shaft 22 for resetting, the steering gear 23 is connected with the central transmission gear 24 again in a jogging way, a gear shaft 10 and a driving gear shaft 21 are respectively arranged at two sides of the tractor walking gearbox body 2, one end of the gear shaft 10 extends out of the gearbox body, a spline shaft body is arranged at the outer end of the gear shaft 10, the driving gear shafts 21 at two sides are respectively meshed with the corresponding gear shafts 10 through the driving gear 20, the driving gear shafts 21 are used for installing and driving crawler-type travelling wheels, the gear shafts 10 at two sides are respectively meshed with the corresponding steering gear 23 through the reduction gear 9, the braking steering mechanism comprises a brake and a bracket 43, the brake is respectively arranged at the outer ends of the gearbox body of the gear shafts 10 at two sides and used for braking the gear shafts 10, the brake comprises a brake shell 19, the brake shell 19 is fixedly arranged at the outer side of a bearing cover 11 of the gear shaft 10, a brake housing 13 is arranged between a brake housing 19 and a bearing cover 11, a brake gear 16, a brake pressure plate 17 and a brake claw 18 are sequentially arranged in the brake housing 19 from inside to outside, the brake gear 16 is arranged on a spline shaft body of a gear shaft 10, a plurality of brake friction plates 14 and brake steel sheets 15 are alternately arranged in the brake housing 13, the diameter of the outer ring of each brake friction plate 14 is smaller than that of the inner ring of the brake housing 13, the inner ring of each brake friction plate 14 is provided with an inner tooth meshed with the brake gear 16, the inner ring of the brake housing 13 is provided with a plurality of key grooves, the outer ring of each brake steel sheet 15 is provided with a plurality of lugs matched with the key grooves, the lugs are in sliding connection with the key grooves, the inner ring of each brake steel sheet 15 is larger than the diameter of the brake gear 16, the brake pressure plate 17 is in positioning guide through positioning pins arranged on the brake housing 19, each brake claw 18 is in rotary connection with the brake housing 19, one end of each brake claw 18 extends out of the brake housing 19, brake arms are arranged at the extending ends of the brake claws 18, and left brake arms 40 and right brake arms 60 for controlling the brake operation are correspondingly arranged at the brake claws 18 at the two sides. A cover backing plate 12 is arranged between the brake cover 13 and the bearing cover 11.
The bracket 43 is arranged above the front side of the tractor walking gearbox body 2, the left operating rod 54 and the right operating rod 53 are respectively hinged on two sides of the bracket 43, the left operating rod 54 and the right operating rod 53 are respectively connected with the bracket 43 through a return spring 65, a left pushing plate 57 and a right pushing plate 52 are correspondingly arranged on the left operating rod 54 and the right operating rod 53, a left mounting column 47 and a right mounting column 51 are vertically arranged on the bracket 43 between the left operating rod 54 and the right operating rod 53, a left rotating seat 48 and a right rotating seat 50 are correspondingly arranged on the left mounting column 47 and the right mounting column 51 in a rotating manner, a left roller 59 and a right roller 55 are correspondingly arranged on the left rotating seat 48 and the right rotating seat 50, the left roller 59 is positioned between the left pushing plate 57 and the left shifting fork arm 58, the right roller 55 is positioned between the right pushing plate 52 and the right shifting fork arm 56, a left adjusting pull rod 49 and a right adjusting pull rod 64 are correspondingly connected with the left operating rod 54 and the right operating rod 53, a left fork 46 and a right fork connection mechanism and a right fork connection fork 46 and a right fork connection fork 63 are correspondingly connected with the left fork connection fork 60 and a right fork connection fork 63 respectively through a brake arm 60.
The linkage mechanism comprises a lifting rod I41, a rotary scissor arm I42, a pull rod 44 and an articulated rotating arm 45, wherein the rotary scissor arm I42 is hinged on the tractor walking gearbox body 2, one end of the lifting rod I41 is hinged with a brake arm, when the lifting rod I is arranged on the left side, the lifting rod I is hinged with a left brake arm 40, when the lifting rod I is arranged on the right side, the lifting rod I is hinged with a right brake arm 60, the other end of the lifting rod I41 is hinged with the lower arm of the rotary scissor arm I42, the articulated rotating arm 45 is hinged on a bracket 43, one end of the articulated rotating arm 45 is hinged with a connecting fork, when the lifting rod I is arranged on the left side, the articulated rotating arm I is hinged with a left connecting fork 46, when the lifting rod I is arranged on the right side, the other end of the articulated rotating arm 45 is hinged with the upper arm of the rotary scissor arm I42 through the pull rod 44.
The front side of a steering shaft 22 in the tractor walking gearbox body 2 is sequentially provided with a middle shaft 25, a main speed-changing shaft 27, a second shaft 31 and a clutch shaft 32 in a transmission way, the middle part of the steering shaft 22 is provided with a central transmission gear 24, and the steering gears 23 are respectively positioned on two sides of the central transmission gear 24; an intermediate gear 26 is mounted on the intermediate shaft 25; the main speed change shaft 27 is provided with a central transmission driving gear 7, a first-gear driven gear 28 poked by a first-gear poking fork and a second-gear driven gear 6 poked by a second-gear shifting fork; the second shaft 31 is provided with a reverse gear 30, a first gear driving gear 29, a second gear driving gear 3, a rotary tillage driving gear 4 and a third gear driving gear 5; the clutch shaft 32 is provided with a secondary speed change gear 1 which is shifted by a secondary speed change shifting fork and a clutch assembly; the tractor walking gear box body 2 at the lower part of the second shaft 31 is provided with a reverse gear shaft 39, and the reverse gear shaft 39 is provided with a reverse gear driving gear 38.
The top of the tractor walking gearbox body 2 is covered with a gearbox cover, and a secondary gear lever for controlling a secondary gear shift fork and a gear lever for controlling a first gear shift fork, a second gear shift fork and a reverse gear shift fork are arranged on the gearbox cover.
The rear side of the tractor walking gearbox body 2 is connected and provided with a rotary tillage gearbox 36, an outwards extending rotary tillage driving shaft 35 is arranged in the rotary tillage gearbox 36, the outer end of the rotary tillage driving shaft 35 is provided with a driving wheel 37, the driving wheel 37 is a driving chain wheel and is in driving connection with a rear rotary tillage mechanism through a chain driving device, the rotary tillage driving shaft 35 is provided with a rotary tillage driven gear 33 which is always meshed with a rotary tillage driving gear 4, the rotary tillage driven gear 33 is provided with internal teeth, and the rotary tillage driving shaft 35 is also provided with a rotary tillage high-low grade duplex gear 34 which can be meshed with the rotary tillage driven gear 33 and a first-grade driving gear 29 respectively through stirring of a rotary tillage shifting fork; the rotary tillage high-low gear shifting fork is provided with a rotary tillage operating lever.
The tractor walking gearbox body 2 is provided with a control handrail.
Example 2
The distinguishing features from example 1 are that: the adopted link mechanism is different, the link mechanism comprises a lifting rod II 61 and a rotary cutter arm II 62, the rotary cutter arm II 62 is hinged on the tractor walking gearbox body 2, the upper arm of the rotary cutter arm II 62 is hinged with a connecting fork, when being arranged on the left side, the upper arm of the rotary cutter arm II 62 is hinged with a left connecting fork 46, when being arranged on the right side, the lower arm of the rotary cutter arm II 62 is hinged with a brake arm through the lifting rod II 61, when being arranged on the left side, the lower arm of the rotary cutter arm II 62 is hinged with a left brake arm 40, and when being arranged on the right side, the lower arm of the rotary cutter arm II is hinged with a right brake arm 60.
The required power is transmitted from the clutch assembly into the tractor walking gearbox body 2 through the clutch shaft 32, the auxiliary speed change fork dials the auxiliary speed change gear 1 to enable the auxiliary speed change gear 1 to be meshed with the I-gear driving gear 29 or the III-gear driving gear 5, when the auxiliary speed change gear 1 is meshed with the I-gear driving gear 29, the gear is in a high gear, when the auxiliary speed change gear 1 is meshed with the III-gear driving gear 5, the gear is in a low gear, the power is transmitted to the second shaft 31 after the gear is meshed, the gear installed on the second shaft 31 is driven to rotate, and the reverse gear 30 is always meshed with the reverse gear driving gear 38 on the reverse gear shaft 39. The first gear is obtained when the first gear shift fork shifts the first driven gear 28 to mesh with the first driving gear 29, the reverse gear is obtained when the first driven gear 28 meshes with the reverse gear driving gear 38, the third gear is obtained when the second gear shift fork shifts the second driven gear 6 to mesh with the third driving gear 5, the second gear is obtained when the second driven gear 6 meshes with the second driving gear 3, the neutral gear is obtained when the first driven gear 28 and the second driven gear 6 do not mesh with other gears, and the above gears cannot be simultaneously present, and power is transmitted to the main shift shaft 27 when the gears mesh. The central transmission driving gear 7 on the main speed changing shaft 27 is in constant mesh with the intermediate gear 26 on the intermediate shaft 25, the intermediate gear 26 is in constant mesh with the central transmission gear 24 on the steering shaft 22, the steering gear 23 and the reduction gear 9 are in constant mesh, then the central transmission driving gear 7 is transferred to the gear shaft 10 through the steering gear 23 and the reduction gear 9, and finally the central transmission driving gear 26 is transferred to the driving wheel shaft 21 through the driving gear 20 for driving the crawler traveling wheels to walk. The rotary tillage driving gear 4 on the second shaft 31 is in constant mesh with the rotary tillage driven gear 33 on the rotary tillage driving shaft 35 to drive the rotary tillage driven gear 33 to rotate, but not drive the rotary tillage driving shaft 35 to rotate; the rotary tillage high-low gear shifting fork shifts the rotary tillage high-low gear duplex gear 34 to slide on the rotary tillage driving shaft 35, when the rotary tillage high-low gear duplex gear 34 is meshed with the internal teeth of the rotary tillage driven gear 33, power transmission is realized, the rotary tillage driving shaft 35 is driven to rotate at a high speed, and when the rotary tillage high-low gear duplex gear 34 is meshed with the I-gear driving gear 29, power low-speed transmission is realized, and the rotary tillage driving shaft 35 is driven to rotate at a low speed.
When steering, the left control lever 54 or the right control lever 53 is operated, the left control lever 54 or the right control lever 53 swings with the hinge point of the bracket 43 as a pivot, and stretches the return spring 65, the corresponding left pushing plate 57 or the right pushing plate 52 pushes the left roller 59 or the right roller 55 to rotate and drives the left rotating seat 48 or the right rotating seat 50 to swing with the left mounting column 47 or the right mounting column 51 as a pivot, at this time, the left roller 59 or the right roller 55 also pushes the left shifting fork arm 58 or the right shifting fork arm 56, when the left shifting fork arm 58 or the right shifting fork arm 56 rotates to the limit position, the steering gear 23 on the corresponding side of the shifting fork shifting is separated from the central transmission gear 24 and is not meshed, the corresponding steering spring 8 is also extruded, the power transmission on the side is interrupted, and when the left control lever 54 or the right control lever 53 is pulled to swing again, the left shifting fork arm 58 or the right shifting fork arm 56 and the corresponding left rotating seat 48 or the right rotating seat 50 are not moved any more, the corresponding left roller 59 or right roller 55 and the left pushing plate 57 or right pushing plate 52 move relatively, the left shifting fork arm 58 or right shifting fork arm 56 is extruded by the left roller 59 or right roller 55, the steering gear 23 and the central transmission gear 24 are always in a separated state, and in the process of continuously pulling the left control rod 54 or right control rod 53, the left connecting fork 46 and the left adjusting pull rod 49 or the right connecting fork 63 and the right adjusting pull rod 64 drive the link mechanism to control the left brake arm 40 or the right brake arm 60 to drive the brake convex claw 18 to rotate in the brake shell 19, the brake pressure disc 17 is pushed to move inwards, the brake steel disc 15 and the brake friction disc 14 are pushed to slide inwards in the brake housing 13, the brake steel disc 15 and the brake friction disc 14 are pressed against the housing backing plate 12, so that the brake gear 16 cannot rotate, and the gear shaft 10 stops rotating, the crawler-type travelling wheel at the side also stops rotating; the power transmission of the other side is not interrupted, the crawler-type travelling wheel on the other side continuously walks to realize steering, when the steering control rod is loosened, the return spring 65 pulls the left control rod 54 or the right control rod 53 to return, the left roller 59 or the right roller 55 does not press the left shifting fork arm 58 or the right shifting fork arm 56, the steering gear 23 is pushed to return due to the action of the steering spring 8, the steering gear 23 is embedded with the central transmission gear 24, the power transmission is restored, the brake steel sheet 15 and the brake friction sheet 14 are not extruded by the brake pressure disc 17, and the brake friction sheet 14 rotates along with the brake gear 16.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art who is skilled in the art to which the present invention pertains should apply to equivalent substitutions or alterations herein within the scope of the present invention.
Claims (9)
1. The utility model provides a braking steering control mechanism of self-propelled crawler-type rotary cultivator, self-propelled crawler-type rotary cultivator adopt tractor walking gearbox body (2), tractor walking gearbox body (2) in install steering spindle (22), the mid-mounting of steering spindle (22) has a central transmission gear (24), install steering gear (23) and steering spring (8) that are used for controlling left and right steering respectively on steering spindle (22) of central transmission gear (24) both sides, two steering gear (23) department all installs respectively and is connected with the shift fork, corresponding installation left shift fork arm (58) and right shift fork arm (56) on two shift forks, both sides of tractor walking gearbox body (2) all install a gear shaft (10) and a driving axle (21) respectively, the one end of gear shaft (10) stretches out the box outside, driving axle (21) of both sides are through driving gear (20) and corresponding gear shaft (10) meshing, gear shaft (10) of both sides are through reducing gear (9) and corresponding steering gear (23) meshing respectively, its characterized in that: the brake steering control mechanism comprises a brake and a bracket (43), wherein the brake is respectively arranged at the outer ends of the box bodies of the gear shafts (10) at two sides and used for braking the gear shafts (10), and a left brake arm (40) and a right brake arm (60) which are used for controlling the brake to work are correspondingly arranged at the brakes at two sides; the bracket (43) is arranged above the front side of the tractor walking gearbox body (2), a left operating rod (54) and a right operating rod (53) are respectively hinged on two sides of the bracket (43), the left operating rod (54) and the right operating rod (53) are also respectively connected with the bracket (43) through a return spring (65), a left pushing plate (57) and a right pushing plate (52) are correspondingly arranged on the left operating rod (54) and the right operating rod (53), the bracket (43) between the left operating rod (54) and the right operating rod (53) is vertically provided with a left mounting column (47) and a right mounting column (51), a left rotating seat (48) and a right rotating seat (50) are correspondingly arranged on the left rotating seat (48) and the right rotating seat (50), a left roller (59) and a right roller (55) are correspondingly arranged on the left rotating seat (48), the left roller (59) is positioned between the left pushing plate (57) and the left shifting fork arm (58), the right roller (55) is positioned between the left pushing plate (52) and the right shifting fork arm (56) and the right adjusting lever (54) correspondingly, the left rotating seat (48) and the right rotating seat (50) are correspondingly rotatably arranged on the left mounting column (47) and the right mounting column (51), the left adjusting pull rod (49) and the right adjusting pull rod (64) are correspondingly connected and provided with a left connecting fork (46) and a right connecting fork (63), and the left connecting fork (46) and the right connecting fork (63) are correspondingly connected with the left brake arm (40) and the right brake arm (60) through a connecting rod mechanism respectively.
2. The brake steering mechanism of a self-propelled tracked rotary tiller of claim 1, wherein: the connecting rod mechanism comprises a lifting rod II (61) and a rotary scissor arm II (62), wherein the rotary scissor arm II (62) is hinged on a tractor walking gearbox body (2), the upper arm of the rotary scissor arm II (62) is hinged with a connecting fork, when the rotary scissor arm II is installed on the left side, the rotary scissor arm II is hinged with a left connecting fork (46), when the rotary scissor arm II is installed on the right side, the rotary scissor arm II is hinged with a right connecting fork (63), the lower arm of the rotary scissor arm II (62) is hinged with a brake arm through the lifting rod II (61), when the rotary scissor arm II is installed on the left side, the rotary scissor arm II is hinged with a left brake arm (40), and when the rotary scissor arm II is installed on the right side, the rotary scissor arm II is hinged with a right brake arm (60).
3. The brake steering mechanism of a self-propelled tracked rotary tiller of claim 1, wherein: the connecting rod mechanism comprises a lifting rod I (41), a rotary scissor arm I (42), a pull rod (44) and a hinged rotating arm (45), wherein the rotary scissor arm I (42) is hinged to a tractor walking gearbox body (2), one end of the lifting rod I (41) is hinged to a brake arm, the lifting rod I is hinged to the left brake arm (40) when installed on the left side, the lifting rod I (41) is hinged to a right brake arm (60) when installed on the right side, the other end of the lifting rod I (41) is hinged to the lower arm of the rotary scissor arm I (42), the hinged rotating arm (45) is hinged to a bracket (43), one end of the hinged rotating arm (45) is hinged to a connecting fork, the hinged end of the hinged rotating arm is hinged to a left connecting fork (46) when installed on the left side, the other end of the hinged rotating arm (45) is hinged to an upper arm of the rotary scissor arm I (42) through the pull rod (44).
4. The brake steering mechanism of a self-propelled tracked rotary tiller of claim 1, wherein: the outer end of the gear shaft (10) is provided with a spline shaft body, the brake comprises a brake shell (19), the brake shell (19) is fixedly arranged on the outer side of a bearing cover (11) of the gear shaft (10), a brake housing (13) is arranged between the brake shell (19) and the bearing cover (11), a brake gear (16), a brake pressure plate (17) and a brake claw (18) are sequentially arranged in the brake shell (19) from inside to outside, the brake gear (16) is arranged on the spline shaft body of the gear shaft (10), a plurality of brake friction plates (14) and brake steel plates (15) are alternately arranged in the brake housing (13), the diameter of the outer ring of the brake friction plates (14) is smaller than the diameter of the inner ring of the brake housing (13), the inner ring of the brake friction plates (14) is provided with inner teeth meshed with the brake gear (16), the inner ring of the brake housing (13) is provided with a plurality of key grooves, the outer ring of the brake steel plates (15) is provided with a plurality of lugs matched with the key grooves, the lugs are in sliding connection with the key grooves, the diameter of the brake steel plates (15) is larger than the diameter of the brake pressure plate (16) and is larger than the brake friction plates (16), the diameter of the brake friction plates (16) is larger than the brake friction plates (16), the brake friction plates (16) are arranged on the brake housing (19), the brake friction plates are arranged on the inner ring, and the brake steel plates are positioned on the brake housing (19) and extend out of the brake housing (19), the brake arm is arranged at the extending end of the brake convex claw (18), the left brake convex claw (18) is provided with a left brake arm (40), and the brake convex claw (18) of the right brake is provided with a right brake arm (60).
5. The brake steering mechanism of a self-propelled tracked rotary tiller of claim 4, wherein: a cover backing plate (12) is arranged between the brake cover (13) and the bearing cover (11).
6. The brake steering mechanism of a self-propelled tracked rotary tiller of claim 1, wherein: an intermediate shaft (25), a main speed changing shaft (27), a second shaft (31) and a clutch shaft (32) are sequentially arranged in the tractor walking gearbox body (2) at the rear side of the steering shaft (22) in a transmission manner; an intermediate gear (26) is arranged on the intermediate shaft (25); a central transmission driving gear (7), an I-gear driven gear (28) poked by an I-gear poking fork and an II-gear driven gear (6) poked by an II-gear poking fork are arranged on the main speed changing shaft (27); a reverse gear (30), a first gear driving gear (29), a second gear driving gear (3), a rotary tillage driving gear (4) and a third gear driving gear (5) are arranged on the second shaft (31); a secondary speed change gear (1) and a clutch assembly which are shifted by a secondary speed change shifting fork are arranged on the clutch shaft (32); a reverse gear shaft (39) is arranged on the tractor walking gearbox body (2) at the lower part of the second shaft (31), and a reverse gear driving gear (38) is arranged on the reverse gear shaft (39).
7. The brake steering mechanism of a self-propelled tracked rotary tiller of claim 6, wherein: the top of the tractor walking gearbox body (2) is covered with a gearbox cover, and a secondary gear lever for controlling a secondary gear shifting fork and a gear lever for controlling a first gear shifting fork, a second gear shifting fork and a reverse gear shifting fork are arranged on the gearbox cover.
8. The brake steering mechanism of a self-propelled tracked rotary tiller of claim 1, wherein: the rear side of the tractor walking gearbox body (2) is connected and provided with a rotary tillage gearbox (36), an outwards extending rotary tillage driving shaft (35) is arranged in the rotary tillage gearbox (36), the outer end of the rotary tillage driving shaft (35) is provided with a driving wheel (37), a rotary tillage driven gear (33) which is normally meshed with a rotary tillage driving gear (4) is arranged on the rotary tillage driving shaft (35), the rotary tillage driven gear (33) is provided with internal teeth, and a rotary tillage high-low grade duplex gear (34) which can be meshed with the rotary tillage driven gear (33) and the I-grade driving gear (29) respectively through stirring of a rotary tillage shifting fork is also arranged on the rotary tillage driving shaft (35); the rotary tillage high-low shifting fork is provided with a rotary tillage operating lever.
9. The brake steering mechanism of a self-propelled tracked rotary tiller of claim 1, wherein: the tractor walking gearbox body (2) is provided with a control handrail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211335577.9A CN115443744B (en) | 2022-10-28 | 2022-10-28 | Braking steering control mechanism of self-propelled crawler-type rotary cultivator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211335577.9A CN115443744B (en) | 2022-10-28 | 2022-10-28 | Braking steering control mechanism of self-propelled crawler-type rotary cultivator |
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| CN115443744A CN115443744A (en) | 2022-12-09 |
| CN115443744B true CN115443744B (en) | 2024-03-08 |
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| CN202211335577.9A Active CN115443744B (en) | 2022-10-28 | 2022-10-28 | Braking steering control mechanism of self-propelled crawler-type rotary cultivator |
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Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006056321A (en) * | 2004-08-18 | 2006-03-02 | Yanmar Co Ltd | Power transmitting mechanism |
| CN102239757A (en) * | 2011-05-13 | 2011-11-16 | 广州市科利亚农业机械有限公司 | High-power step-less variable transmission case for agricultural machinery |
| CN104691618A (en) * | 2015-03-28 | 2015-06-10 | 双峰县湘源金穗收割机制造有限公司 | Differential steering device of crawler belt travelling mechanism |
| CN106184338A (en) * | 2016-08-16 | 2016-12-07 | 第拖拉机股份有限公司 | Endless-track vehicle turns to and brake operating mechanism |
| CN106195146A (en) * | 2016-10-10 | 2016-12-07 | 湖南润田农机装备科技股份有限公司 | Crawler tractor infinitely variable speeds third gear box assembly |
| CN106275110A (en) * | 2016-08-26 | 2017-01-04 | 第拖拉机股份有限公司 | A kind of paddy field crawler tractor |
| CN206107381U (en) * | 2016-08-26 | 2017-04-19 | 第一拖拉机股份有限公司 | Paddy field crawler tractor |
| CN207178661U (en) * | 2017-08-24 | 2018-04-03 | 中联重机浙江有限公司 | A kind of speed change reversing transmission mechanism of rotary cultivator |
| CN108533696A (en) * | 2018-06-28 | 2018-09-14 | 陕西润牧农业科技有限公司 | A kind of multi-cylinder kitten gearbox |
| CN109424734A (en) * | 2017-08-24 | 2019-03-05 | 中联重机浙江有限公司 | A kind of speed change reversing transmission mechanism of rotary cultivator |
| CN109417871A (en) * | 2017-08-24 | 2019-03-05 | 中联重机浙江有限公司 | A kind of rotary cultivator |
| CN209654542U (en) * | 2019-02-20 | 2019-11-19 | 广西汽牛农业机械有限公司 | A kind of multifunctional gear box |
| CN111114638A (en) * | 2020-03-09 | 2020-05-08 | 偃师市亿成科技有限公司 | Steering device for crawler tractor |
| CN211943472U (en) * | 2020-04-14 | 2020-11-17 | 台州市集英农林科技有限公司 | Transmission connecting rod steering mechanism of crawler conveyor |
| CN214757697U (en) * | 2021-03-22 | 2021-11-19 | 广西汽牛农业机械有限公司 | Agricultural cultivator capable of changing front rotary tillage and rear rotary tillage and gearbox thereof |
| CN216078224U (en) * | 2021-07-20 | 2022-03-18 | 湖南省神手机械制造有限公司 | Two-mode transmission with in-situ steering and single-side brake steering |
| CN217011644U (en) * | 2022-02-28 | 2022-07-22 | 广西汽牛农业机械有限公司 | Direct-connection multipurpose agricultural machine with rotary tillage fast and slow gears and gearbox |
| CN218625376U (en) * | 2022-10-28 | 2023-03-14 | 南宁市桂发农机制造有限公司 | Self-propelled crawler-type rotary cultivator gearbox assembly |
-
2022
- 2022-10-28 CN CN202211335577.9A patent/CN115443744B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006056321A (en) * | 2004-08-18 | 2006-03-02 | Yanmar Co Ltd | Power transmitting mechanism |
| CN102239757A (en) * | 2011-05-13 | 2011-11-16 | 广州市科利亚农业机械有限公司 | High-power step-less variable transmission case for agricultural machinery |
| CN104691618A (en) * | 2015-03-28 | 2015-06-10 | 双峰县湘源金穗收割机制造有限公司 | Differential steering device of crawler belt travelling mechanism |
| CN106184338A (en) * | 2016-08-16 | 2016-12-07 | 第拖拉机股份有限公司 | Endless-track vehicle turns to and brake operating mechanism |
| CN106275110A (en) * | 2016-08-26 | 2017-01-04 | 第拖拉机股份有限公司 | A kind of paddy field crawler tractor |
| CN206107381U (en) * | 2016-08-26 | 2017-04-19 | 第一拖拉机股份有限公司 | Paddy field crawler tractor |
| CN106195146A (en) * | 2016-10-10 | 2016-12-07 | 湖南润田农机装备科技股份有限公司 | Crawler tractor infinitely variable speeds third gear box assembly |
| CN109417871A (en) * | 2017-08-24 | 2019-03-05 | 中联重机浙江有限公司 | A kind of rotary cultivator |
| CN207178661U (en) * | 2017-08-24 | 2018-04-03 | 中联重机浙江有限公司 | A kind of speed change reversing transmission mechanism of rotary cultivator |
| CN109424734A (en) * | 2017-08-24 | 2019-03-05 | 中联重机浙江有限公司 | A kind of speed change reversing transmission mechanism of rotary cultivator |
| CN108533696A (en) * | 2018-06-28 | 2018-09-14 | 陕西润牧农业科技有限公司 | A kind of multi-cylinder kitten gearbox |
| CN209654542U (en) * | 2019-02-20 | 2019-11-19 | 广西汽牛农业机械有限公司 | A kind of multifunctional gear box |
| CN111114638A (en) * | 2020-03-09 | 2020-05-08 | 偃师市亿成科技有限公司 | Steering device for crawler tractor |
| CN211943472U (en) * | 2020-04-14 | 2020-11-17 | 台州市集英农林科技有限公司 | Transmission connecting rod steering mechanism of crawler conveyor |
| CN214757697U (en) * | 2021-03-22 | 2021-11-19 | 广西汽牛农业机械有限公司 | Agricultural cultivator capable of changing front rotary tillage and rear rotary tillage and gearbox thereof |
| CN216078224U (en) * | 2021-07-20 | 2022-03-18 | 湖南省神手机械制造有限公司 | Two-mode transmission with in-situ steering and single-side brake steering |
| CN217011644U (en) * | 2022-02-28 | 2022-07-22 | 广西汽牛农业机械有限公司 | Direct-connection multipurpose agricultural machine with rotary tillage fast and slow gears and gearbox |
| CN218625376U (en) * | 2022-10-28 | 2023-03-14 | 南宁市桂发农机制造有限公司 | Self-propelled crawler-type rotary cultivator gearbox assembly |
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| CN115443744A (en) | 2022-12-09 |
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