CN219514553U - Crawler-type rotary cultivator - Google Patents

Abstract

The utility model provides a crawler-type rotary cultivator, which comprises: the rotary tillage machine comprises a frame, an engine, a driving transmission shaft, a walking gearbox, an operation transmission shaft, an operation gearbox, an operation shaft and a rotary tillage assembly. The engine is arranged on the frame and comprises a power output end; the driving transmission shaft comprises a driving transmission shaft input wheel and a driving transmission shaft output wheel, and the driving transmission shaft input wheel is in transmission connection with the power output end; the walking gearbox is in transmission connection with the output wheel of the driving transmission shaft; the operation transmission shaft is parallel to the driving transmission shaft, and comprises an operation transmission shaft input wheel and an operation transmission shaft output wheel, wherein the operation transmission shaft input wheel is in transmission connection with the power output end; the operation gearbox is in transmission connection with an output wheel of the operation transmission shaft; the operation shaft is arranged behind the operation gearbox along the front-back direction and is connected with the rotary tillage assembly. Through reasonable arrangement of the transmission structure, the whole power transmission of the crawler rotary cultivator is effectively improved, and the power loss is reduced.

Description

Crawler-type rotary cultivator

Technical Field

The utility model relates to the technical field of agricultural machinery, in particular to a crawler-type 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 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 sinking resistance and can only work in dry fields or harder fields, and once the agricultural machinery encounters rainy seasons or paddy fields, the agricultural machinery falls into muddy soil. Accordingly, there is a need for a track rotary tiller that overcomes the above-described drawbacks.

Disclosure of Invention

The utility model aims to provide a crawler-type rotary cultivator.

According to one aspect of the present utility model, there is provided a crawler-type rotary tiller defining a traveling direction of the crawler-type rotary tiller as front, comprising: the rotary tillage machine comprises a frame, an engine, a driving transmission shaft, a walking gearbox, an operation transmission shaft, an operation gearbox, an operation shaft and a rotary tillage assembly. The frame comprises a main body part; the engine is arranged on the main body part and comprises a power output end; the driving transmission shaft is arranged in front of the engine along the left-right direction, the driving transmission shaft comprises driving transmission shaft input wheels and driving transmission shaft output wheels which are respectively arranged at two axial ends of the driving transmission shaft, and the driving transmission shaft input wheels are in transmission connection with the power output end; the walking gearbox is in transmission connection with the output wheel of the driving transmission shaft; the operation transmission shaft is parallel to the driving transmission shaft and is arranged at the rear of the engine, the operation transmission shaft comprises operation transmission shaft input wheels and operation transmission shaft output wheels which are respectively arranged at two axial ends of the operation transmission shaft, and the operation transmission shaft input wheels are in transmission connection with the power output end; the operation gearbox is in transmission connection with the operation transmission shaft output wheel; the working shaft is arranged at the rear of the working gearbox along the front-rear direction; the rotary tillage assembly is arranged at the rear of the operation gearbox and comprises a rotary tillage shaft, a power input shaft, a rotary cultivator transfer case and the rotary tillage gearbox, the operation gearbox is in transmission connection with the rotary cultivator transfer case through the operation shaft, and the rotary tillage shaft is in transmission connection with the power input shaft through the rotary tillage gearbox; the power is transmitted to the driving transmission shaft and the operation transmission shaft from the power output end of the engine, one part of the power is transmitted to the traveling gearbox from the driving transmission shaft to control the rotary cultivator to travel after being changed in speed, the other part of the power is transmitted to the operation gearbox from the operation transmission shaft to change the speed and change the direction to the operation shaft, and then the operation shaft is transmitted to the transfer case of the rotary cultivator to change the direction to the power input shaft, so that the rotary cultivator is controlled to rotate through the speed change of the rotary cultivator to realize operation.

Further, the crawler-type rotary cultivator further comprises a first belt connected with the driving transmission shaft input wheel and the power output end, a second belt connected with the operation transmission shaft input wheel and the power output end, a first tensioning device used for tensioning the first belt and a second tensioning device used for tensioning the second belt, wherein the first tensioning device is arranged between the driving transmission shaft input wheel and the power output end, and the second tensioning device is arranged between the operation transmission shaft input wheel and the power output end.

Further, the first tensioning device comprises a first upright post, a first tensioning arm which is rotationally arranged around the first upright post, a first tensioning wheel which is arranged at one end of the first tensioning arm far away from the first upright post, and a first adjusting component which is connected with one end of the first tensioning arm far away from the first upright post, wherein the adjusting component adjusts the height of the first tensioning wheel in the vertical direction, the first belt comprises an upper belt part, and the first tensioning wheel is attached to the outer side of the upper belt part; the second tensioning device comprises a second tensioning arm, a second tensioning wheel and a second adjusting assembly, wherein one end of the second tensioning arm is rotatably arranged on the frame, the second tensioning wheel is arranged at the other end of the second tensioning arm, the second adjusting assembly is used for adjusting the position of the second tensioning wheel in the height direction, the second belt comprises a lower belt part, and the second tensioning wheel is attached to the outer side of the lower belt part.

Further, first regulation subassembly is including being fixed in tensioning regulation pole in the frame, sliding setting up the L template on the tensioning regulation pole, the cover locate tensioning regulation pole on the elastic component and with tensioning regulation pole complex adjusting bolt, elastic component and L template set gradually along tensioning regulation pole top-down, L template with first take-up pulley is connected, through adjusting the position of adjusting bolt on the tensioning regulation pole, and then adjusts the height of L template on the tensioning regulation pole, realizes the altitude mixture control to first take-up pulley.

Further, the first adjusting component comprises an elastic piece fixed on the frame, a tensioning adjusting rod connected with the elastic piece, an adjusting bolt matched with the tensioning adjusting rod and an L-shaped plate connected with the first tensioning wheel, and the elastic piece, the tensioning adjusting rod and the L-shaped plate are sequentially arranged from bottom to top; the L-shaped plate is movably arranged on the tensioning adjusting rod and is limited on the tensioning adjusting rod through the adjusting bolt, and the height of the L-shaped plate on the tensioning adjusting rod is adjusted through adjusting the position of the adjusting bolt on the tensioning adjusting rod, so that the height of the first tensioning wheel is adjusted.

Further, the crawler rotary cultivator further comprises a crawler driving shaft arranged below the driving transmission shaft, and a left crawler driving wheel and a right crawler driving wheel which are respectively arranged at two ends of the crawler driving shaft, wherein the crawler driving shaft penetrates through the walking gearbox and is in transmission connection with the driving transmission shaft through the walking gearbox.

Further, the frame comprises a front beam and a rear beam which are parallel to each other, and the bottom of the engine is fixed with the front beam and the rear beam respectively.

Further, the frame also comprises a crawler mounting frame arranged below the main body part, the crawler mounting frame comprises a front splayed beam and a rear splayed beam, the front splayed beam and the rear splayed beam extend downwards obliquely from the bottom of the frame towards the two sides of the width direction of the frame, the front splayed beam is fixed at the bottom of the front cross beam, the rear splayed beam is fixed at the bottom of the rotary cultivator mounting frame, the crawler mounting frame also comprises a left supporting beam and a right supporting beam, the left supporting beam and the right supporting beam are connected with the front cross beam, and the left supporting beam and the right supporting beam are perpendicular to the front cross beam; the crawler driving shaft is rotatably arranged on the front splayed beam.

Further, the top of left side prop up heavy beam is equipped with the take-up pulley subassembly, the take-up pulley subassembly includes along the guide cylinder that the length direction of left side prop up heavy beam extends, locates the guide bar in the guide cylinder and locates the track take-up pulley of guide bar one end, the upper end of left side prop up heavy beam still is equipped with the backup pad, the backup pad is located the one end that the guide cylinder kept away from the track take-up pulley.

Further, the left and right sides of left side supporting beam is equipped with first thrust wheel group and second thrust wheel group respectively, the top of left side supporting beam is equipped with left track drive wheel, the front end of preceding splayed roof beam is located to left track drive wheel, the top of guide cylinder is equipped with left track supporting component, left track supporting component is including fixing at the guide cylinder upper end and upwards extending's support frame and locating the track supporting wheel of support frame upper end, track component sets up on left side supporting beam and right supporting beam symmetrically

Compared with the prior art, the crawler-type rotary cultivator provided by the utility model has the following beneficial effects:

through reasonable arrangement of the transmission structure, the whole power transmission of the crawler rotary cultivator is effectively improved, the power loss is reduced, meanwhile, the structure arrangement is compact, and the occupied space is reduced.

Drawings

The utility model is described in further detail below with reference to the attached drawings and detailed description:

FIG. 1 is a perspective view of the track rotary tiller of the present utility model;

FIG. 2 is a top view of the track rotary tiller of the present utility model;

FIG. 3 is a perspective view of a partial assembly of the track rotary tiller of the present utility model;

FIG. 4 is a perspective view of the frame of the present utility model;

FIG. 5 is another perspective view of the frame of the present utility model;

FIG. 6 is an enlarged view of a portion of the tensioner assembly of the present utility model;

FIG. 7 is a cross-sectional view of the track assembly of the present utility model;

FIG. 8 is a perspective view of the rotary tiller mount of the present utility model;

FIG. 9 is an enlarged view of a portion of the rotary tiller mount of the present utility model.

Figure 10 is a perspective view of the rotary tillage assembly of the present utility model.

Fig. 11 is a perspective view of a baffle assembly of the present utility model.

Fig. 12 is a perspective view of the land leveling assembly of the present utility model.

Figure 13 is another perspective view of the rotary tillage assembly of the present utility model.

Figure 14 is a left side view of the rotary tillage assembly of the present utility model.

Fig. 15 is a perspective view of the side plow of the present utility model.

Fig. 16 is a right side view of the side plow of the utility model.

Fig. 17 is a front view of the side plow of the present utility model.

Fig. 18 is a transmission structure diagram of the present utility model.

Fig. 19 is a partial enlarged view at a of fig. 18.

Fig. 20 is a schematic structural view of another embodiment of the first tensioning device of the present utility model.

Fig. 21 is a schematic view of another view structure of the present utility model.

Reference numerals:

crawler-type rotary tiller 100;

the rotary cultivator comprises a frame 1, a main body part 11, a front cross beam 111, a rear cross beam 112, a rotary cultivator mounting frame 12, an upper lifting arm 121, a lower lifting arm 122, an upper pull rod 123, a lower pull rod 124, a lifting cylinder 125, a first pull rod 126, a left connecting plate 127, a right connecting plate 128, a track mounting frame 13, a front splayed beam 131, a rear splayed beam 132, a left Zhi Chongliang 133, a right supporting beam 134, a first baffle 14 and a second baffle 15;

the drive part 2, the oil tank 21, the oil tank support part 211, the hydraulic oil tank 22, the hydraulic oil tank support part 221, the traveling gearbox 23, the gearbox connecting plate 231, the engine 24, the power output end 241, the working gearbox 25, the mounting seat 251, the post-treatment device 26, the post-treatment mounting seat 261, the drive transmission shaft 27, the drive transmission shaft input wheel 271, the drive transmission shaft output wheel 272, the first belt 273, the upper belt part 2731, the first tensioning device 274, the first upright post 2741, the first tensioning arm 2742, the first tensioning wheel 2743, the tensioning adjustment lever 2744, the adjustment bolt 2745, the elastic piece 2746, the L-shaped plate 2747, the working transmission shaft 28, the working transmission shaft input wheel 281, the working transmission shaft output wheel 282, the second belt 283, the lower belt part 2831, the second tensioning device 284, the second tensioning arm 2841, the second tensioning wheel 2842, the second adjustment assembly 2843, and the working shaft 29;

rotary tillage assembly 3, rotary cultivator transfer case 31, first mounting bar 32, second mounting bar 33, upper cover 34, left side plate 35, right side plate 36, rotary tillage shaft 37, power input shaft 38, rotary tillage gearbox 39, side plow 40, plow plate 401, cambered surface 4011, plow plate mounting plate 402, first connection 4021, second connection 4022, connection hole 4023, avoidance area 4024;

track assembly 4, first thrust wheel set 41, second thrust wheel set 42, left track drive wheel 43, idler assembly 44, guide cylinder 441, guide rod 442, track tensioner 443, support plate 444, left track support assembly 45, support frame 451, track support wheel 452, track drive shaft 46;

a cab 5;

a peripheral cover assembly 6;

grader mount 7, first mount plate 71, first mount hole 711, first fixing portion 712, second mount plate 72, second mount hole 721, second fixing portion 722;

the leveling assembly 8, the leveling plate 81, the first lifting oil cylinder 82, the second lifting oil cylinder 83, the first lifting connecting rod 84, the second lifting connecting rod 85, the auxiliary plate 86 and the air cylinder 87;

baffle assembly 9, baffle 91, adjustment member 92, adjustment lever 921, spring 922, adjustment seat 923, connector 93.

Detailed Description

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

For the sake of simplicity of the drawing, the parts relevant to the present utility model are shown only schematically in the figures, which do not represent the actual structure thereof as a product. Additionally, in order to simplify the drawing for ease of understanding, components having the same structure or function in some of the drawings are shown schematically with only one of them, or only one of them is labeled. Herein, "a" means not only "only this one" but also "more than one" case.

It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

In this context, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In addition, in the description of the present utility model, the terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following description will explain the specific embodiments of the present utility model with reference to the accompanying drawings. It is evident that the drawings in the following description are only examples of the utility model, from which other drawings and other embodiments can be obtained by a person skilled in the art without inventive effort.

Referring to fig. 1 and 2, the present utility model discloses a crawler-type rotary tiller 100, defining a traveling direction thereof as front, the crawler-type rotary tiller 100 includes a frame 1, a driving part 2, a rotary tiller assembly 3, a crawler assembly 4, a cab 5, a peripheral cover assembly 6, a grader mount 7, a grader assembly 8, and a fence assembly 9. The driving part 2 includes a fuel tank 21, a hydraulic fuel tank 22, a traveling gearbox 23, an engine 24, a working gearbox 25, a post-processing device 26, a driving transmission shaft 27, a working transmission shaft 28, and a working shaft 29. The frame includes a main body portion 11, a tiller mount 12, and a track mount 13. The rotary cultivator assembly 3 is connected with the rotary cultivator mounting frame 12, and the crawler belt assembly 4 is arranged on the crawler belt mounting frame 13. The grader mounting bracket 7 is mounted above the rotary tillage assembly 3. The land leveler assembly 8 is connected with the land leveler mounting frame 7 and is arranged behind the rotary tillage assembly 3. The baffle plate assembly 9 is arranged between the rotary tillage assembly 3 and the land leveling assembly 8.

Referring to fig. 18, the engine 24 includes a power output end 241, the driving shaft 27 is disposed in front of the engine 24 along a left-right direction, the driving shaft 27 includes a driving shaft input wheel 271 and a driving shaft output wheel 272 disposed at two axial ends of the driving shaft 27, the driving shaft input wheel 271 is in driving connection with the power output end 241, and the traveling gearbox 23 is in driving connection with the driving shaft output wheel 272; the operation transmission shaft 28 is parallel to the driving transmission shaft 27 and is arranged at the rear of the engine 24, the operation transmission shaft 28 comprises an operation transmission shaft input wheel 281 and an operation transmission shaft output wheel 282 which are respectively arranged at two axial ends of the operation transmission shaft 28, and the operation transmission shaft input wheel 281 is in transmission connection with the power output end 241; the operation gearbox 25 is in transmission connection with the operation transmission shaft output wheel 282; the working shaft 29 is provided in the front-rear direction behind the working gearbox 25; the rotary tillage assembly 3 is arranged behind the operation gearbox 25, the rotary tillage assembly 3 comprises a rotary tillage shaft 37, a power input shaft 38, a rotary cultivator transfer case 31 and a rotary tillage gearbox 39, the operation gearbox 25 is in transmission connection with the rotary cultivator transfer case 31 through the operation shaft 29, and the rotary tillage shaft 37 is in transmission connection with the power input shaft 38 through the rotary tillage gearbox 39.

The power is transmitted to the driving transmission shaft 27 and the working transmission shaft 28 from the power output end 241 of the engine 24, one part of the power is transmitted to the traveling gearbox 23 from the driving transmission shaft 27 to control the rotary cultivator to travel after being changed in speed, the other part of the power is transmitted to the working gearbox 25 from the working transmission shaft 28 to change speed and change direction to the working shaft 29, and then the power is transmitted to the rotary cultivator transfer case 31 from the working shaft 29 to change direction to the power input shaft 38, so that the rotary cultivator is controlled to rotate by the rotary cultivator transfer case 39 to change speed, and the operation is realized.

In this embodiment, the crawler-type rotary tiller further includes a first belt 273 connecting the drive transmission shaft input wheel 271 and the power output end 241, a second belt 283 connecting the work transmission shaft input wheel 281 and the power output end 241, a first tensioning device 274 for tensioning the first belt 273, and a second tensioning device 284 for tensioning the second belt 283, the first tensioning device 274 being disposed between the drive transmission shaft input wheel 271 and the power output end 241, the second tensioning device 284 being disposed between the work transmission shaft input wheel 281 and the power output end 241; the first tensioning device 274 comprises a first upright post 2741, a first tensioning arm 2742 which is rotatably arranged around the first upright post 2741, a first tensioning wheel 2743 which is arranged at one end of the first tensioning arm 2742 far away from the first upright post 2741, and a first adjusting component which is connected with one end of the first tensioning arm 2742 far away from the first upright post 2741, wherein the adjusting component adjusts the height of the first tensioning wheel 2743 in the vertical direction, the first belt 273 comprises an upper belt part 2731, and the first tensioning wheel 2743 is attached to the outer side of the upper belt part 2731; the second tensioning device 284 includes a second tensioning arm 2841 with one end rotating on the frame 1, a second tensioning wheel 2842 disposed at the other end of the second tensioning arm 2841, and a second adjusting component 2843 for adjusting the position of the second tensioning wheel 2842 in the height direction, where the second belt 283 includes a lower belt portion 2831, and the second tensioning wheel 2842 is attached to the outer side of the lower belt portion 2831.

Referring to fig. 19, the first adjusting assembly includes a tensioning adjusting rod 2744 fixed on the frame 1, an L-shaped plate 2747 slidably disposed on the tensioning adjusting rod 2744, an elastic piece 2746 sleeved on the tensioning adjusting rod 2744, and an adjusting bolt 2745 matched with the tensioning adjusting rod 2744, the adjusting bolt 2745, the elastic piece 2746 and the L-shaped plate 2747 are sequentially disposed along the tensioning adjusting rod 2744 from top to bottom, the L-shaped plate 2747 is connected with the first tensioning wheel 2743, and the height of the L-shaped plate 2747 on the tensioning adjusting rod 2744 is adjusted by adjusting the position of the adjusting bolt 2745 on the tensioning adjusting rod 2744.

Referring to fig. 3, the main body 11 includes a front beam 111 and a rear beam 112 that are parallel to each other. The main body portion 11 includes a tank support portion 211 for mounting the tank 21 and a hydraulic tank support portion 221 for mounting the hydraulic tank 22, extending forward from the front cross member 111. The front end of the front cross member 111 is provided with a transmission connection plate 231 for fixing a traveling transmission 23, and the traveling transmission 23 is provided between the oil tank 21 and the hydraulic oil tank 22.

The front and rear cross members 111, 112 are provided with an engine mount (not shown) and the engine 24 is fixed between the front and rear cross members 111, 112. A transmission mount 251 for fixing the working transmission 25 is provided at the rear of the rear cross member 112. A post-treatment mounting seat 261 for fixing a post-treatment device 26 is also arranged between the engine 24 and the rotary cultivator mounting frame 12, and the post-treatment mounting seat 261 is fixed on the frame 1.

Referring to fig. 1, the cab 5 and the frame 1 are fixed and provided above the engine 24. The peripheral cover assembly 6 is fixed above the main body portion 11 and is connected to the cab 5. The oil tank 21, the hydraulic oil tank 22, the traveling gearbox 23, the engine 24, the working gearbox 25, and the aftertreatment device 26 are all provided inside the peripheral cover assembly 6. The tiller mount 12 is located outside the peripheral cover assembly 6.

Referring to fig. 4, the rotary cultivator mounting frame 12 is provided with a first barrier 14 and a second barrier 15 on both sides thereof. The bottom of the first baffle 14 is fixed to the frame 1. The first baffle 14 is inclined rearward while extending upward from the frame 1. The first barrier 14 is secured to the tiller mount 12 near one end of the tiller mount 12. The second barrier 15 and the first barrier 14 are symmetrically disposed at the other side of the rotary cultivator mounting frame 12. The post-treatment device 26 is provided at the front end of the second barrier 15. The first barrier 14 and the second barrier 15 function as mud flaps at the same time.

Referring to fig. 5, the track mount 13 includes a front splayed beam 131 and a rear splayed beam 132 extending downward from the bottom of the frame 1 and toward both sides of the width direction of the frame 1, the front splayed beam 131 being fixed to the bottom of the front cross beam 111, and the rear splayed beam 132 being fixed to the bottom of the rotary cultivator mount 12. The track mount 13 further includes a left bracing beam 133 provided on the left side of the frame 1 and connecting the front splayed beam 131 and the rear splayed beam 132, and a right bracing beam 134 provided on the right side of the frame 1 and connecting the front splayed beam 131 and the rear splayed beam 132.

The left and right branch beams 133 and 134 extend in the horizontal direction and are each perpendicular to the front cross member 111. Track assemblies 4 are symmetrically disposed on left and right load beams 133 and 134. The track assembly 4 includes a first thrust wheel set 41 and a second thrust wheel set 42 disposed on left and right sides of a left thrust beam 133, respectively. A left track driving wheel 43 is arranged above the front end of the left supporting beam 133, and the left track driving wheel 43 is arranged at the front end of the front splayed beam 131 and is used for transmitting power to the tracks.

Referring to fig. 6, the rear end of the left weight beam 133 is provided with a tension pulley assembly 44, and the tension pulley assembly 44 includes a guide cylinder 441 fixed to the top of the left weight beam 133 and a guide rod 442 provided in the guide cylinder 441. The guide cylinder 441 and the guide rod 442 extend in the front-rear direction, and the guide rod 442 can be extended and retracted in the front-rear direction within the guide cylinder to adjust the tension to the crawler belt. A track tensioner 443 is provided at the rear end of the guide rod 442.

Referring to fig. 7, the top of the left branch beam 133 is further provided with a support plate 444, and the support plate 444 is positioned at the front end of the guide cylinder 441. A support plate 444 is fixed to the upper end of the left girder 133 for preventing the left girder 133 from being cracked. The left track supporting assembly 45 is further arranged above the guide cylinder 441, and the left track supporting assembly 45 comprises a supporting frame 451 fixed at the upper end of the guide cylinder 441 and extending upwards, and a track supporting wheel 452 arranged at the upper end of the supporting frame 451.

The track assembly 4 further includes a track body wrapped around the left track drive wheel 43, the first thrust wheel set 41, the second thrust wheel set 42, the track tensioning wheel 443, and the track support wheel 452. The track assembly 4 is symmetrically arranged on the left and right supporting beams 133 and 134, and the right supporting beam 134 is symmetrically provided with another set of driving wheels, supporting wheels, tensioning wheels, supporting wheels and a track body.

Referring to fig. 8, the upper end of the rotary cultivator attachment frame 12 is provided with an upper lift arm 121, and the upper lift arm 121 can be rotated up and down. The lower end of the rotary cultivator mounting frame 12 is provided with a lower lifting arm 122, the front end of the lower lifting arm 122 is connected with the frame 1 and extends backwards, and the rear end of the lower lifting arm 122 is connected with the rotary tillage assembly 3. The tiller mount 12 further includes an upper tie rod 123 connecting the upper lift arm 121 and the lower lift arm 122 and a lower tie rod 124 connecting the lower lift arm 122 and the frame 1.

The rotary cultivator mounting frame 12 is also provided with a lifting cylinder 125, the lower end of the lifting cylinder 125 is connected with the frame 1 and the upper end is connected with the upper lifting arm 121. The lifting cylinder 125 stretches and contracts to drive the upper lifting arm 121 to rotate, and then sequentially passes through the upper pull rod 123 and the lower lifting arm 122 to drive the rotary tillage assembly 3 to lift or press down.

Referring to fig. 9, in the present embodiment, the rotary cultivator mounting frame 12 is symmetrically disposed, the upper lifting arm 121 includes extending portions extending rearward from two ends of the rotation shaft, two upper pulling rods 123 are symmetrically disposed left and right and are respectively connected to one extending portion, two lower lifting arms 122 are symmetrically disposed left and right and are respectively connected to one upper pulling rod 123, and two lower pulling rods 124 are symmetrically disposed left and right and are respectively connected to one lower lifting arm 122. The left lower pull rod extends from the left lower lifting arm to the left of the frame 1 and is connected with the frame 1, and the right lower pull rod extends from the right lower lifting arm to the right of the frame 1 and is connected with the frame 1.

The rotary cultivator attachment frame 12 further includes a first tie bar 126 provided below the upper lift arm 121 and extending from front to rear, and left and right link plates 127 and 128 provided on left and right sides of the first tie bar 126, respectively. The upper ends of the left connecting plate 127 and the right connecting plate 128 are connected with the first pull rod 126, the left connecting plate 127 extends downwards while being inclined to the left side of the first pull rod 126 and fixed with the rotary tillage assembly 3, and the right connecting plate 128 extends downwards while being inclined to the right side of the first pull rod 126 and fixed with the rotary tillage assembly 3.

The lift cylinder 125 is provided with two and symmetrically disposed at both left and right sides of the first tie rod 126. The rotary tiller assembly 3 includes a tiller transfer case 31, the tiller transfer case 31 being disposed between a left connecting plate 127 and a right connecting plate 128. The rotary tiller transfer case 31 is configured to transmit power of the working shaft 29 extending in the front-rear direction to the rotary tillage assembly 3 to the left and right sides.

The grader mounting frame 7 comprises a first mounting plate 71 and a second mounting plate 72, the first mounting plate 71 and the second mounting plate 72 are arranged at intervals in parallel in the horizontal direction, the rotary tillage assembly 3 comprises a first mounting rod 32, the first mounting plate 71 and the second mounting plate 72 are fixedly connected with the first mounting rod 32, and the grader assembly 8 is connected with the first mounting plate 71 and the second mounting plate 72. The first mounting plate 71 is provided with a first mounting hole 711, the second mounting plate 72 is provided with a second mounting hole 721 opposite to the first mounting hole 711, and the first mounting rod 32 passes through the first mounting hole 711 and the second mounting hole 721. The first mounting plate 71 includes a first fixing portion 712 extending from the rear to the front, the second mounting plate 72 includes a second fixing portion 722 extending from the rear to the front, the rotary tillage assembly 3 further includes a second mounting bar 33 disposed in front of the first mounting bar 32, and the first fixing portion 712 and the second fixing portion 722 are fixedly connected to the second mounting bar 33. Through setting up land leveler mounting bracket 7, realize the quick assembly disassembly of land leveler subassembly 8, need not to change the rotary cultivator structure, realize quick assembly disassembly, when guaranteeing to connect firmly, stable in structure, make things convenient for the dismouting, improve work efficiency.

The rotary tillage assembly 3 further comprises an upper cover 34, a left side plate 35 and a right side plate 36 which are arranged on the left side and the right side of the upper cover 34, a rotary tillage shaft 37 which is arranged below the upper cover 34, a power input shaft 38 which is arranged above the upper cover 34, a rotary tillage gearbox 39 which is arranged on the left side plate 35 or the right side plate 36, and a side plow 40 which is arranged on the left side plate 35 or the right side plate 36 relative to the rotary tillage gearbox 39, wherein the rotary tillage shaft 37 and the power input shaft 38 are respectively and rotatably arranged on the left side plate 35 and the right side plate 36, the rotary tillage shaft 37 and the power input shaft 38 are in transmission connection through the rotary tillage gearbox 39, and the power input shaft 38 is in transmission connection with the transfer case 31. The both ends of first installation pole 32 and the both ends of second installation pole 33 respectively with left side board 35 and right side board 36 fixed connection, first installation pole 32 and second installation pole 33 all set up in upper cover 34 top, first mounting plate 71 and second mounting plate 72 all laminate upper cover 34 sets up, the interval is provided with a plurality of rotary tillage sword on the rotary tillage axle 37.

Referring to fig. 13 to 17, the side plow 40 includes a plow plate 401 bent from top to bottom and forward and a plow plate mounting plate 402 disposed at the rear of the plow plate 401, the plow plate 401 is connected with the left side plate 35 or the right side plate 36 through the plow plate mounting plate 402, in this embodiment, the plow plate mounting plate 402 is connected with the right side plate 36, the plate surface of the plow plate mounting plate 402 faces the left side plate 35, and the plate surface of the plow plate 401 faces the front and rear direction. In this embodiment, the moldboard 401 is welded to the moldboard mounting plate 402, and in other embodiments, other securing means may be used. One side of the plow plate 401, which is close to the rotary blade, is provided with an arc surface 4011, and the arc surface 4011 is bent from the rotary blade to the plow plate 401 from top to bottom, so that the breaking capacity is effectively improved.

In this embodiment, the plow plate 401 is inclined backward from the plow plate mounting plate 402 toward the rotary blade direction, so that soil can be pushed toward the rotary blade direction when the soil is broken, and further the rotary tillage efficiency is improved.

The plow plate mounting plate 402 includes a first connection part 4021 connected to the plow plate 401 and a second connection part 4022 connected to the left side plate 35 or the right side plate 36, the first connection part 4021 is crescent-shaped, and the second connection part 4022 is disposed behind the first connection part 4021; at least two connection holes 4023 are formed in the second connection part 4022, and the second connection part 4022 is connected with the left side plate 35 or the right side plate 36 through the connection holes 4023; the second connection portion 4022 includes an avoidance area 4024, and an oil seal cover is disposed on the left side plate 35 or the right side plate 36, and the avoidance area 4024 avoids the oil seal cover.

The baffle assembly 9 includes a baffle 91 movably connected to the upper cover 34, an adjusting member 92 for adjusting a distance between the baffle 91 and the ground, and a connecting member 93 for connecting the baffle 91 and the upper cover 34. In this embodiment, the adjusting member 92 includes an adjusting lever 921, a spring 922, an adjusting seat 923 and an adjusting pin, the adjusting seat 923 is fixedly disposed on the mounting rod, the adjusting lever 921 is provided with a plurality of adjusting holes matched with the adjusting pin, the spring 922 is disposed between the adjusting pin 924 and the adjusting seat 923, and one end of the adjusting lever 921 away from the adjusting pin 924 is rotationally connected with the baffle 91. In other embodiments, the adjustment member 92 may be a fit between the adjustment lever 921, the spring 922, the adjustment seat 923, and the adjustment bolt. In addition, a toothed harrow is connected to the front of the baffle 91 for loosening the soil.

The leveling assembly 8 comprises a leveling plate 81, a first lifting oil cylinder 82, a second lifting oil cylinder 83, a first lifting connecting rod 84 and a second lifting connecting rod 85, wherein two ends of the first lifting oil cylinder 82 are respectively connected with the first mounting plate 71 and the leveling plate 81, the second lifting oil cylinder 83 is respectively connected with the second mounting plate 72 and the leveling plate 81, two ends of the first lifting connecting rod 84 are respectively connected with the first mounting plate 71 and the leveling plate 81, the second lifting connecting rod 85 is respectively connected with the second mounting plate 72 and the leveling plate 81, the first lifting connecting rod 84 is arranged below the first lifting oil cylinder 82, and the second lifting connecting rod 85 is arranged below the second lifting oil cylinder 83. The land leveling assembly 8 further comprises auxiliary plates 86 rotatably arranged on the left side and the right side of the leveling plate 81 and an air cylinder 87 for adjusting the rotation of the auxiliary plates, wherein the air cylinder 87 is arranged above the leveling plate 81, and two ends of the air cylinder are respectively fixed on the leveling plate 81 and the auxiliary plates 86.

Example two

The structure of this embodiment is the same as that of the first embodiment, except that the first tensioning device 274 is shown in fig. 20, in this embodiment, the first tensioning device 274 includes a first upright 2741, a first tensioning arm 2742 rotatably disposed around the first upright 2741, a first tensioning wheel 2743 disposed at one end of the first tensioning arm 2742 far away from the first upright 2741, and a first adjusting component connected with one end of the first tensioning arm 2742 far away from the first upright 2741, where the first adjusting component includes an elastic member 2746 fixed on the frame 1, a tensioning adjusting rod 2744 connected with the elastic member 2746, an adjusting bolt 2745 matched with the tensioning adjusting rod 2744, and an L-shaped plate 2747 connected with the first tensioning wheel 2743, and the elastic member 2746, the tensioning adjusting rod 2744, and the L-shaped plate 2747 are sequentially disposed from bottom to top; the L-shaped plate 2747 is movably arranged on the tensioning adjusting rod 2744 and is limited on the tensioning adjusting rod 2744 through an adjusting bolt 2745, and the height of the L-shaped plate 2747 on the tensioning adjusting rod 2744 is adjusted through the position of the adjusting bolt 2745 on the tensioning adjusting rod 2744, so that the height of the first tensioning wheel 2743 is adjusted.

It will be apparent to those skilled in the art that various modifications and variations can be made to the above-described exemplary embodiments of the present utility model without departing from the spirit and scope of the utility model. Therefore, it is intended that the present utility model cover the modifications and variations of this utility model provided they come within the scope of the appended claims and their equivalents.

Claims (10)

1. A track rotary tiller defining a travel direction of the track rotary tiller, comprising:

the rotary cultivator comprises a frame, a rotary cultivator body and a rotary cultivator body, wherein the frame comprises a main body part, a rotary cultivator mounting rack positioned at the rear end of the main body part and a crawler mounting rack positioned below the main body part, and the crawler mounting rack is provided with a crawler assembly;

the engine is arranged on the main body part and comprises a power output end which is arranged on the left side of the frame;

the driving transmission shaft is arranged in front of the engine along the left-right direction and comprises driving transmission shaft input wheels and driving transmission shaft output wheels which are respectively arranged at two axial ends of the driving transmission shaft, and the driving transmission shaft input wheels are in transmission connection with the power output end;

the walking gearbox is in transmission connection with the output wheel of the driving transmission shaft;

the operation transmission shaft is parallel to the driving transmission shaft and is arranged at the rear of the engine, the operation transmission shaft comprises operation transmission shaft input wheels and operation transmission shaft output wheels which are respectively arranged at two axial ends of the operation transmission shaft, and the operation transmission shaft input wheels are in transmission connection with the power output end;

the operation gearbox is in transmission connection with the operation transmission shaft output wheel;

the working shaft is arranged behind the working gearbox along the front-rear direction;

the rotary tillage assembly is arranged at the rear of the operation gearbox and comprises a rotary tillage shaft, a power input shaft, a rotary cultivator transfer case and the rotary tillage gearbox, the operation gearbox is in transmission connection with the rotary cultivator transfer case through the operation shaft, and the rotary tillage shaft is in transmission connection with the power input shaft through the rotary tillage gearbox;

the power is transmitted to the driving transmission shaft and the operation transmission shaft from the power output end of the engine, one part of the power is transmitted to the traveling gearbox from the driving transmission shaft to control the rotary cultivator to travel after being changed in speed, the other part of the power is transmitted to the operation gearbox from the operation transmission shaft to change the speed and change the direction to the operation shaft, and then the operation shaft is transmitted to the transfer case of the rotary cultivator to change the direction to the power input shaft, so that the rotary cultivator is controlled to rotate through the speed change of the rotary cultivator to realize operation.

2. The track rotary tiller of claim 1, further comprising a first belt connecting the drive shaft input wheel and the power take-off, a second belt connecting the work shaft input wheel and the power take-off, a first tensioner for tensioning the first belt, and a second tensioner for tensioning the second belt, the first tensioner disposed between the drive shaft input wheel and the power take-off, the second tensioner disposed between the work shaft input wheel and the power take-off.

3. The crawler-type rotary tiller of claim 2, wherein the first tensioning device comprises a first upright, a first tensioning arm rotatably arranged around the first upright, a first tensioning wheel arranged at one end of the first tensioning arm far away from the first upright, and a first adjusting component connected with one end of the first tensioning arm far away from the first upright, the adjusting component adjusts the height of the first tensioning wheel in the vertical direction, the first belt comprises an upper belt part, and the first tensioning wheel is attached to the outer side of the upper belt part; the second tensioning device comprises a second tensioning arm, a second tensioning wheel and a second adjusting assembly, wherein one end of the second tensioning arm is rotatably arranged on the frame, the second tensioning wheel is arranged at the other end of the second tensioning arm, the second adjusting assembly is used for adjusting the position of the second tensioning wheel in the height direction, the second belt comprises a lower belt part, and the second tensioning wheel is attached to the outer side of the lower belt part.

4. The crawler-type rotary tiller according to claim 3, wherein the first adjusting assembly comprises a tensioning adjusting rod fixed on the frame, an L-shaped plate arranged on the tensioning adjusting rod in a sliding mode, an elastic piece sleeved on the tensioning adjusting rod and an adjusting bolt matched with the tensioning adjusting rod, the adjusting bolt, the elastic piece and the L-shaped plate are sequentially arranged along the tensioning adjusting rod from top to bottom, the L-shaped plate is connected with the first tensioning wheel, and the height of the L-shaped plate on the tensioning adjusting rod is adjusted through adjusting the position of the adjusting bolt on the tensioning adjusting rod, so that the height of the first tensioning wheel is adjusted.

5. The crawler-type rotary tiller according to claim 3, wherein the first adjusting assembly comprises an elastic piece fixed on the frame, a tensioning adjusting rod connected with the elastic piece, an adjusting bolt matched with the tensioning adjusting rod, and an L-shaped plate connected with the first tensioning wheel, and the elastic piece, the tensioning adjusting rod and the L-shaped plate are sequentially arranged from bottom to top; the L-shaped plate is movably arranged on the tensioning adjusting rod and is limited on the tensioning adjusting rod through the adjusting bolt, and the height of the L-shaped plate on the tensioning adjusting rod is adjusted through adjusting the position of the adjusting bolt on the tensioning adjusting rod, so that the height of the first tensioning wheel is adjusted.

6. The track rotary tiller of claim 1, further comprising a track drive shaft disposed below the drive shaft, and left and right track drive wheels disposed at opposite ends of the track drive shaft, respectively, the track drive shaft extending through the traveling gearbox and being drivingly connected to the drive shaft by the traveling gearbox.

7. The track rotary tiller of claim 6, wherein said frame includes a front cross member and a rear cross member parallel to each other, and a bottom portion of said engine is secured to said front and rear cross members, respectively.

8. The track rotary tiller of claim 7, wherein the frame further comprises a track mount disposed below the main body, the track mount comprising a front splayed beam and a rear splayed beam extending obliquely downward from a bottom of the frame toward both sides of a width direction of the frame, the front splayed beam being fixed to a bottom of the front cross beam, the rear splayed beam being fixed to a bottom of the rotary tiller mount, the track mount further comprising a left and a right bracing beam connecting the front splayed beam and the rear splayed beam, the left and right bracing beams each being perpendicular to the front cross beam; the crawler driving shaft is rotatably arranged on the front splayed beam.

9. The track rotary tiller of claim 8, wherein the tensioning wheel assembly is disposed above the left support beam, the tensioning wheel assembly comprises a guide cylinder extending along the length direction of the left support beam, a guide rod disposed in the guide cylinder, and a track tensioning wheel disposed at one end of the guide rod, and the upper end of the left support beam is further provided with a support plate, and the support plate is disposed at one end of the guide cylinder away from the track tensioning wheel.

10. The crawler rotary tiller according to claim 9, wherein the left and right sides of the left support beam are respectively provided with a first support wheel set and a second support wheel set, a left crawler driving wheel is arranged above the left support beam, the left crawler driving wheel is arranged at the front end of the front splayed beam, a left crawler supporting component is arranged above the guide cylinder, the left crawler supporting component comprises a support frame fixed at the upper end of the guide cylinder and extending upwards and crawler supporting wheels arranged at the upper end of the support frame, and the crawler components are symmetrically arranged on the left support beam and the right support beam.