CN220255064U - Slotting mechanism and slotting equipment - Google Patents

Abstract

The utility model provides a slotting mechanism and slotting equipment, and relates to the technical field of agricultural equipment. In the slotting mechanism, slotting chains are connected end to form a loop-back path, and the loop-back path formed by the slotting chains has a long and narrow integral appearance; the outer peripheral surface of the slotted chain is detachably connected with a plurality of slotted plates, the slotted plates are arranged at intervals along the extending direction of the slotted chain, the slotted plates are long-plate-shaped, the length direction of each slotted plate is perpendicular to the extending direction of the slotted chain, the middle part of each slotted plate is connected with the slotted chain, and the two ends of each slotted plate extend out of the two sides of the slotted chain; the grooved plate surface is provided with grooved teeth which extend from the grooved plate vertically towards a direction far away from the grooved chains. The slotting plate and the slotting tooth form slotting small units, and the slotting plate is detachably connected with the slotting chain, so that a certain slotting small unit can be independently replaced according to working conditions, the technical problems that a conventional slotting instrument is complex in structure and difficult to maintain and cannot be replaced in a modularized manner are solved, and the slotting machine has great popularization value and wide application prospect.

Description

Slotting mechanism and slotting equipment

Technical Field

The utility model relates to the technical field of agricultural equipment, in particular to a slotting mechanism and slotting equipment.

Background

In agricultural production, grooves are required to be dug whether sowing, seedling inserting, irrigation and drainage are carried out, or even harvesting of underground crops such as Chinese yam, sweet potato, potato and the like. In the past, agricultural workers generally adopt hand tools such as shovels, shovels and the like to dig grooves, and the labor intensity is high and the efficiency is very low. Later, along with the development of science and technology and economy, some grooving apparatuses are put into agricultural production, so that the labor intensity is reduced, and the production efficiency is improved.

The present inventors found that there are at least the following technical problems in the prior art: the conventional slotting machine has a complex structure and is difficult to maintain, and the slotting machine cannot be replaced in a modularized mode.

Disclosure of Invention

The utility model aims to provide a slotting mechanism and slotting equipment, which are used for solving the technical problems that the conventional slotting instrument in the prior art is complex in structure, difficult to maintain and incapable of being replaced in a modularized manner _。 The preferred technical solutions of the technical solutions provided by the present utility model can produce a plurality of technical effects described below.

In order to achieve the above object, the embodiments of the present utility model provide the following technical solutions:

in a first aspect, embodiments of the present utility model provide a slotting mechanism comprising a slotting chain, a slotting plate and slotting teeth, wherein: the slotted chains are connected end to form a loop-back path, and the loop-back path formed by the slotted chains has a long and narrow integral appearance; the outer peripheral surface of the slotted chain is detachably connected with a plurality of slotted plates, the slotted plates are arranged at intervals along the extending direction of the slotted chain, the slotted plates are long-plate-shaped, the length direction of the slotted plates is perpendicular to the extending direction of the slotted chain, the middle part of each slotted plate is connected with the slotted chain, and two ends of each slotted plate respectively exceed two sides of the slotted chain; every the notching plate is kept away from all be equipped with on the face of notching chain the notching tooth, the notching tooth is followed the face of notching plate is perpendicular to be kept away from the direction of notching chain extends.

Further, at least two adjacent slotting teeth are positioned at different projection positions in a direction perpendicular to the slotting chain length.

Further, the projection positions of the four adjacent slotting teeth in the direction perpendicular to the length direction of the slotting chain gradually change from one end of the slotting plate to the other end.

Further, one end of each grooved tooth far away from the grooved plate is provided with a tapping block, the tapping block is long-strip-shaped, and the length direction of the tapping block is parallel to the length direction of the grooved plate.

In a second aspect, embodiments of the present utility model provide a slotting device comprising a traction means, a driving means and a slotting means comprising the slotting mechanism described above, wherein: the traction device comprises a tractor, a first traction arm and a second traction arm which longitudinally overhang are arranged at the tail of the tractor in parallel, a core shaft which is in rotary connection is transversely erected between the overhanging end of the first traction arm and the overhanging end of the second traction arm, and two ends of the core shaft extend out of the side surfaces of the first traction arm and the second traction arm which are opposite to each other respectively; one end of the nuclear mandrel is provided with a power input wheel which is circumferentially fixed, and the power input wheel is in transmission connection with a power output wheel arranged on the tractor; the part of the core shaft, which is positioned between the first traction arm and the second traction arm, is provided with a supporting component, and at least part of the supporting component is sleeved on the periphery of the core shaft and forms rotary connection; the driving device comprises a first driving wheel which is sleeved in the middle of the core shaft and forms circumferential fixation, and the first driving wheel divides the supporting component into two parts which are separated at two sides and have the same structure and are symmetrical; the device also comprises a push-pull rod acting on the supporting component, one end of the push-pull rod is hinged with one side, far away from the nuclear mandrel, of the supporting component, and the other end of the push-pull rod extends to the tractor and is in transmission connection with a hydraulic mechanism arranged on the tractor; the grooving device comprises a grooving guide arm, one end of the grooving guide arm is fixedly connected with the supporting component, the other end of the grooving guide arm extends along the radial direction of the first driving wheel, and a first driven wheel which is rotationally connected is arranged at one end of the grooving guide arm, which is far away from the supporting component; the first driving wheel and the first driven wheel are sleeved with the slotted chains in meshed connection, and the slotted guide arms are positioned in a loop-shaped path formed by the slotted chains.

Further, a first bearing is arranged at the overhanging end of the first traction arm, a second bearing is arranged at the overhanging end of the second traction arm, and the core shaft is arranged in the first bearing and the second bearing in a penetrating manner so as to be rotationally connected with the first traction arm and the second traction arm; the bearing assembly comprises a third bearing, a fourth bearing, a first bearing plate and a second bearing plate, wherein the third bearing and the fourth bearing are sleeved on the core mandrel and are respectively arranged at two sides of the first driving wheel, and the inner rings of the third bearing and the fourth bearing and the core shaft form circumferential fixation; the first bearing plate is arranged on the outer ring of the third bearing, the second bearing plate is arranged on the outer ring of the fourth bearing, and the first bearing plate and the second bearing plate extend in parallel towards the direction away from the nuclear spindle and the plate surfaces of the first bearing plate and the second bearing plate are coplanar.

Further, an extension line of the slotted guide arm, which is close to one end of the supporting component, passes through the first driving wheel, and two side surfaces of the slotted guide arm are respectively and fixedly connected with two parts of the supporting component, which are respectively located at two sides of the first driving wheel.

Further, the slotted guide arm comprises a fixed section connected with the supporting component and a telescopic section provided with the first driven wheel, at least part of the telescopic section is sleeved outside the fixed section or penetrates through the fixed section, and a distance adjusting mechanism is arranged on the side surfaces of the fixed section and the telescopic section so as to change the distance between the first driven wheel and the first driving wheel.

Further, the bottom surface of fluting guide arm is equipped with the tensioning arm that vertically extends, the tensioning arm is located first action wheel with between the first follow driving wheel and be close to first action wheel, the tensioning arm keep away from the one end rotation of fluting guide arm connects first take-up pulley, the fluting chain cover is established first action wheel first follow driving wheel with first take-up pulley periphery and meshing link to each other.

Further, the top surface of the slotting guide arm is provided with a guide wheel which is rotationally connected, the guide wheel is positioned between the first driving wheel and the first driven wheel, and the slotting chain is sleeved on the periphery of the first driving wheel, the first driven wheel and the guide wheel and is meshed and connected.

Based on the technical scheme, the slotting mechanism and slotting equipment provided by the utility model have at least the following substantial characteristics and improvements:

the slotting mechanism comprises a slotting chain, a slotting plate and slotting teeth, wherein the slotting chain is connected end to form a loop-back path, and the loop-back path formed by the slotting chain has a long and narrow integral appearance; the outer peripheral surface of the slotted chain is detachably connected with a plurality of slotted plates, the slotted plates are arranged at intervals along the extending direction of the slotted chain, the slotted plates are long-plate-shaped, the length direction of the slotted plates is perpendicular to the extending direction of the slotted chain, the middle parts of the slotted plates are connected with the slotted chain, and the two ends of the slotted plates respectively exceed the two sides of the slotted chain; each slotted plate is provided with slotted teeth on the plate surface far away from the slotted chain, and the slotted teeth extend from the plate surface of the slotted plate vertically towards the direction far away from the slotted chain. The slotting plate and the slotting tooth form slotting small units, and the slotting plate is detachably connected with the slotting chain, so that a certain slotting small unit can be independently replaced according to working conditions, the technical problems that a conventional slotting instrument is complex in structure and difficult to maintain and cannot be replaced in a modularized manner are solved, and the slotting machine has great popularization value and wide application prospect.

Drawings

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.

Fig. 1 is a schematic perspective view of a slotting mechanism according to an embodiment of the present utility model;

fig. 2 is a schematic front view of a slotting mechanism according to an embodiment of the present utility model;

fig. 3 is a schematic top view of a slotting mechanism according to an embodiment of the present utility model;

fig. 4 is a schematic overall front view of a slotting device in a running state according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a partial top view of a slotting device according to an embodiment of the present utility model;

fig. 6 is a schematic diagram of the whole front view structure of the grooving apparatus in grooving operation according to the embodiment of the present utility model;

fig. 7 is a schematic diagram of a whole front view structure of a slotting device in slotting operation according to the embodiment of the utility model.

The attached drawings are used for identifying and describing:

1. a traction device; 11. a tractor; 111. a power take-off wheel; 121. a first traction arm; 122. a second traction arm; 13. a core mandrel; 141. a first bearing; 142. a second bearing; 15. a power input wheel; 16. a transverse stiffening arm; 161. a soil guide plate; 171. a third bearing; 172. a fourth bearing; 181. a first support plate; 182. a second support plate; 19. a push-pull seat;

2. a driving device; 21. a first drive wheel; 23. a push-pull rod;

3. a slotting device; 31. a slotted guide arm; 311. a fixed section; 312. a telescoping section; 313. a distance adjusting mechanism; 32. a first driven wheel; 33. a slotted chain; 34. a slotted plate; 35. slotting teeth; 36. hard block attack; 37. a first tensioning wheel; 38. a soil leveling mechanism; 39. and a guide wheel.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below with reference to the accompanying drawings and examples of implementation. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. Moreover, the specific embodiments described herein are merely illustrative of the utility model and are not intended to be limiting. Furthermore, all other embodiments, which can be made by a person of ordinary skill in the art without making any inventive effort, are intended to fall within the scope of the present utility model, based on the examples provided herein.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

In the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "mounted," "configured," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1-3 of the drawings, in a first aspect, an embodiment of the present utility model provides a slotting mechanism comprising a slotting chain 33, a slotting plate 34 and slotting teeth 35, wherein: the slotted links 33 are connected end to form a loop-back path, and the loop-back path formed by the slotted links 33 has a long and narrow overall shape; the outer peripheral surface of the slotted chain 33 is detachably connected with a plurality of slotted plates 34, the slotted plates 34 are arranged at intervals along the extending direction of the slotted chain 33, the slotted plates 34 are long-plate-shaped, the length direction of the slotted plates 34 is perpendicular to the extending direction of the slotted chain 33, the middle part of the slotted plates 34 is connected with the slotted chain 33, and two ends of the slotted plates 34 respectively exceed two sides of the slotted chain 33; each of the grooved plates 34 is provided with a grooved tooth 35 on a plate surface thereof remote from the grooved chain 33, and the grooved tooth 35 extends perpendicularly from the plate surface of the grooved plate 34 in a direction remote from the grooved chain 33. It can be understood that the slotting plate 34 and the slotting teeth 35 form slotting small units, and the slotting plate 34 is detachably connected with the slotting chain 33, so that a certain slotting small unit can be independently replaced according to working conditions, and the technical problems that a conventional slotting device is complex in structure and difficult to maintain and cannot be replaced in a modularized mode are solved.

The slotted chain 33 is a chain having a certain flexibility, and is similar to a chain for transmission on a bicycle or a motorcycle in structure, but has a larger size and a higher strength. Thus, the slotted chain 33 can be formed in a loop shape each having an elongated overall shape. The slotting plate 34 is detachably connected to the outer peripheral surface of the slotting chain 33, acts on soil together with slotting teeth 35 thereon, and plays a role in ditching and slotting. The presence of sand and stones in the earth may cause wear to the slotting teeth 35, and after a period of operation, a certain set of slotting plates 34 and slotting teeth 35 may be replaced individually according to circumstances.

It should be noted that, the slotted plate 34 is perpendicular to the extending direction of the slotted chain 33, and the middle part of the slotted plate 34 is connected with the slotted chain 33, so that the length of the slotted plate 34 is related to the width of the groove, and the slotted plate 34 with a proper length can be replaced according to the required width of the groove, so that grooves with different widths can be dug out; the endless path formed by the grooved chain 33 has a long and narrow overall shape, and when one end is used as a power input end and the other end is used as a driven end, if the driven end rotates to different angles around the power input end, the grooving operation depth can be changed, so that grooves with different depths can be dug. The slotting teeth 35 on the slotting plate 34 are vertical to the slotting plate 34, and the slotting teeth and the slotting plate are used for cutting, loosening and scattering soil in the horizontal direction and the vertical direction.

It should be noted that, as shown in fig. 3 of the present disclosure, the rotation speed of the slotting chain 33 is relatively fast compared with the advancing speed of the slotting operation, so that there is no need to provide a plurality of slotting teeth 35 on each slotting block, and a structure similar to a comb tooth is formed, and the slotting teeth 35 on the plurality of slotting plates 34 that are close to each other are staggered, so that soil blocking on the slotting teeth 35 or the slotting plates 34 can be significantly avoided, and in addition, the whole slotting mechanism can be lighter and more flexible. Several alternative or preferred embodiments are provided below:

as an alternative embodiment, at least two adjacent slotting teeth 35 are in different projected positions in the length direction of the vertical slotting chain 33. It will be appreciated that every two adjacent slotted plates 34 are in a group, the slotted teeth 35 on two slotted plates 34 in the group-the slotted teeth 35 on the first slotted plate 34 being located on the left side of the slotted plate 34 and the slotted teeth 35 on the second slotted plate 34 being located on the right side of the slotted plate 34, are alternately cycled in groups until being disposed across the slotted chain 33. It should be noted that the total number of the slotted plates 34 on the slotted chain 33 is not necessarily just a multiple of two, and thus, there may be two slotted plates 34 adjacent to each other that do not conform to the above-described rule, but the other slotted plates 34 as a whole conform to the above-described rule.

As an alternative embodiment, at least three adjacent slotting teeth 35 are in different projected positions in the length direction of the vertical slotting chain 33. It will be appreciated that every three adjacent slotted plates 34 are in a group, with the three slotted teeth 35 on the slotted plates 34 in the group—the slotted teeth 35 on the first slotted plate 34 being located to the left of the slotted plates 34, the slotted teeth 35 on the second slotted plate 34 being located in the middle of the slotted plates 34, and the slotted teeth 35 on the third slotted plate 34 being located to the right of the slotted plates 34, cycling alternately in groups until being disposed across the slotted chain 33. It should be noted that the total number of the slotted plates 34 on the slotted chain 33 is not necessarily just a multiple of three, and therefore, there may be three slotted plates 34 adjacent to each other that do not conform to the above-described rule, but other slotted plates 34 as a whole conform to the above-described rule.

As a preferred embodiment, the projected positions of four adjacent slotting teeth 35 in the length direction of the vertical slotting chain 33 gradually change from one end of the slotting plate 34 to the other end. It will be appreciated that every four adjacent slotted plates 34 are in a group, the slotted teeth 35 on four slotted plates 34 in the group-the slotted teeth 35 on the first slotted plate 34 being located leftmost in the slotted plate 34, the slotted teeth 35 on the second slotted plate 34 being located leftmost in the middle of the slotted plate 34, the slotted teeth 35 on the third slotted plate 34 being located rightmost in the middle of the slotted plate 34, the slotted teeth 35 on the fourth slotted plate 34 being located rightmost in the slotted plate 34, are alternately cycled in groups until disposed across the slotted chain 33. It should be noted that the total number of the slotted plates 34 on the slotted chain 33 is not necessarily just a multiple of four, and thus, there may be four slotted plates 34 adjacent to each other that do not conform to the above-described rule, but other slotted plates 34 as a whole conform to the above-described rule.

With continued reference to fig. 1-3 of the drawings, as a further example, each of the grooving teeth 35 is provided with a tapping block 36 at an end thereof remote from the grooving plate 34, the tapping block 36 being elongated and the length direction of the tapping block 36 being parallel to the length direction of the grooving plate 34. It will be appreciated that the tip of the grooving teeth 35 away from the grooving plate 34 is provided with a tapping block 36, and the tapping block 36 may be made of an alloy material with better wear resistance, so as to provide better excavation effect, improve excavation efficiency, prolong service life, and reduce maintenance frequency.

Referring to fig. 4-5 of the drawings, in a second aspect, an embodiment of the present utility model provides a slotting device, comprising a traction device 1, a driving device 2 and a slotting device 3, wherein the slotting device 3 comprises the slotting mechanism described above, and wherein: the traction device 1 comprises a tractor 11, wherein a first traction arm 121 and a second traction arm 122 which longitudinally overhang are arranged at the tail part of the tractor 11 in parallel, a core shaft 13 which is in rotary connection is transversely erected between the overhanging end of the first traction arm 121 and the overhanging end of the second traction arm 122, and two ends of the core shaft 13 extend beyond the opposite side surfaces of the first traction arm 121 and the second traction arm 122 respectively; one end of the core shaft 13 is provided with a power input wheel 15 and is circumferentially fixed, and the power input wheel 15 is in transmission connection with a power output wheel 111 arranged on the tractor 11; the part of the core shaft 13 between the first traction arm 121 and the second traction arm 122 is provided with a supporting component, and at least part of the supporting component is sleeved on the periphery of the core shaft 13 and forms a rotary connection; the driving device 2 comprises a first driving wheel 21 which is sleeved in the middle of the core shaft 13 and forms circumferential fixation, and the first driving wheel 21 divides the supporting component into two parts which are separated at two sides and have the same structure and are symmetrical; the device also comprises a push-pull rod 23 acting on the supporting component, one end of the push-pull rod 23 is hinged with one side of the supporting component far away from the nuclear spindle 13, and the other end of the push-pull rod 23 extends to the tractor 11 and is in transmission connection with a hydraulic mechanism arranged on the tractor 11; the grooving device 3 comprises a grooving guide arm 31, one end of the grooving guide arm 31 is fixedly connected with the supporting component, the other end of the grooving guide arm 31 extends along the radial direction of the first driving wheel 21, and one end of the grooving guide arm 31 far away from the supporting component is provided with a first driven wheel 32 which is rotationally connected; the first driving wheel 21 and the first driven wheel 32 are sleeved with a grooved chain 33 in meshed connection, and the grooved guide arm 31 is positioned inside a loop-shaped path formed by the grooved chain 33.

It will be appreciated that the slotted guide arm 31 has one end connected to the support assembly (for more secure connection, one side of the slotted guide arm 31 is connected to the first support plate 181, the other side is connected to the second support plate), the other end extending radially along the first driving wheel 21 and having a first driven wheel 32 at the end, the first driving wheel 21 and the first driven wheel 32 are sleeved with a slotted chain 33, the rigid slotted guide arm 31 provides support and guide for the flexible slotted chain 33, the first driving wheel 21 drives the first driven wheel 32 to follow through the first slotted chain 33, so that the whole slotted chain 33 circulates around the first driving wheel 21 and the second driven wheel 42, and the slotted structure provided on the slotted chain 33 performs the slotting operation.

It should be noted that, the first driving wheel 21 and the first driven wheel 32 are sleeved with a slotted chain 33 in meshed connection, the slotted guide arm 31 is located inside a loop-shaped movement path formed by the slotted chain 33, that is, the first driving wheel 21 and the first driven wheel 32 are located on the same vertical plane, the slotted guide arm 31 and the slotted chain 33 are also located on the vertical plane, and the slotted chain 33 is sleeved on the peripheries of the first driving wheel 21 and the first driven wheel 32 and forms the meshing connection.

It should be noted that, there may be a plurality of different transmission modes between the first driving wheel 21 and the first driven wheel 32, for example, a common transmission structure such as a chain wheel-chain, a belt-gear, a synchronous belt-synchronous wheel, etc., and considering a relatively bad working environment, it is recommended to select a chain wheel-chain mode, that is, the first driven wheel 32 and the first driving wheel 21 are both in a chain wheel mode, and the first driven wheel 32 and the first driving wheel 21 are sleeved with a chain to realize transmission.

As a further example, as shown in fig. 4-5 of the specification, the overhanging end of the first traction arm 121 is provided with a first bearing 141, the overhanging end of the second traction arm 122 is provided with a second bearing 142, and the core shaft 13 is inserted into the first bearing 141 and the second bearing 142 to be rotatably connected with the first traction arm 121 and the second traction arm 122; the supporting assembly comprises a third bearing 171, a fourth bearing 172, a first supporting plate 181 and a second supporting plate 182, wherein the third bearing 171 and the fourth bearing 172 are sleeved on the core shaft 13 and are respectively arranged at two sides of the first driving wheel 21, and the inner rings of the third bearing 171 and the fourth bearing 172 and the core shaft 13 form circumferential fixation; the first support plate 181 is disposed on the outer race of the third bearing 171, the second support plate 182 is disposed on the outer race of the fourth bearing 172, and the first support plate 181 and the second support plate 182 extend in parallel in a direction away from the nuclear spindle 13 with the plate surfaces of the two being coplanar. It will be appreciated that the first and second pulling arms 121, 122 extend longitudinally side by side from the tail of the tractor 11, and that the ends of the first and second pulling arms 121, 122 are provided with first and second bearings 141, 142, respectively, to provide support for the core shaft 13 and rotatable connection of the core shaft 13 to the tail of the tractor 11. The third bearing 171 and the first support plate 181 constitute one part of the support assembly that constitutes one side of the first driving wheel 21, and the fourth bearing 172 and the second support plate 182 constitute another part of the support assembly that constitutes the other side of the first driving wheel 21.

It should be noted that, the outer rings of the first bearing 141 and the second bearing 142 are fixedly connected with the first traction arm 121 and the second traction arm 122 respectively, and the inner rings of the first bearing 141 and the second bearing 142 are detachably connected with different positions on the core shaft 13 respectively, and at least the circumferential direction is ensured to be relatively fixed, and generally, the first bearing and the second bearing can be fixed in the axial direction so as to ensure stable structure, smooth transmission and no abnormal noise. It should be noted that, the outer rings of the third bearing 171 and the fourth bearing 172 are fixedly connected with the first supporting plate 181 and the second supporting plate 182 respectively, and the inner rings of the third bearing 171 and the fourth bearing 172 are detachably connected with different positions on the core shaft 13 respectively, and ensure that at least the circumferential direction is relatively fixed, and can be fixed in the axial direction generally so as to ensure stable structure, smooth transmission and no abnormal noise.

Referring to fig. 4 to 5 of the drawings, as a preferred embodiment, a lateral reinforcing arm 16 is provided between the first traction arm 121 and the second traction arm 122, a soil guiding plate 161 is provided on the lateral reinforcing arm 16, and an upper portion of the soil guiding plate 161 is bent and extended to cover over the slotted chain 33-slotted plate 34-slotted teeth 35. It should be noted that, the transverse reinforcement arm 16 may play a reinforcement role between the first traction arm 121 and the second traction arm 122, so that two independent cantilever beams are formed into an H-shaped structure with a connection relationship, thereby improving structural strength, and the soil guiding plate 161 may play a role in guiding the soil excavated by the slotted chain 33 and the slotted structure disposed thereon, so as to prevent the soil from splashing on the tractor 11. In addition, the distance of the lateral stiffening arm 16 from the core shaft 13 is long enough to ensure that the extreme ends of the slotted teeth 35 or the tapping block 36 do not collide with the lateral stiffening arm 16 or the soil guide plate 161.

Referring to fig. 4-5 of the drawings, as an alternative embodiment, an extension line of one end of the slotted guide arm 31 near the supporting component passes through the first driving wheel 21, and two side surfaces of the slotted guide arm 31 are respectively and fixedly connected with two parts of the supporting component, which are respectively located at two sides of the first driving wheel 21. It will be appreciated that the slotted guide arm 31 may not extend along the radial direction of the first driving wheel 21, that is, the extension line of the slotted guide arm 31 passes through the tread of the first driving wheel 21 but does not pass through the center of the first driving wheel 21, which is equivalent to the portion of the extension line of the slotted guide arm 31 located in the first driving wheel 21 being the chord line of the first driving wheel 21, at this time, the radial direction of the slotted guide arm 31 closest to the slotted guide arm 31 in the first driving wheel 21 forms an included angle, so that the requirements on position and shape can be reduced, and the processing, the manufacturing, the dismounting and the maintenance are simpler and faster.

Referring to fig. 4-5 of the specification, as an alternative embodiment, a tensioning arm extending vertically is arranged on the bottom surface of the slotted guide arm 31, the tensioning arm is located between the first driving wheel 21 and the first driven wheel 32 and is close to the first driving wheel 21, one end of the tensioning arm away from the slotted guide arm 31 is rotatably connected with the first tensioning wheel 37, and the slotted chain 33 is sleeved on the periphery of the first driving wheel 21, the first driven wheel 32 and the first tensioning wheel 37 and is meshed with the first tensioning wheel 37. It will be appreciated that the tensioning arm is provided and the first tensioning wheel 37 is provided so that the slotted chain 33 is tensioned to the degree of tightness required for operation by adjusting the length of the tensioning arm or the position of the first tensioning wheel 37 on the tensioning arm after the slotted chain 33 has been substantially sleeved on the first driving wheel 21 and the first driven wheel 32. It should be noted that, the slotted chain 33 is sleeved on the peripheries of the first driving wheel 21, the first driven wheel 32 and the first tensioning wheel 37 and is meshed with each other, that is, the first driving wheel 21, the first driven wheel 32 and the first tensioning wheel 37 are located on the same vertical plane, the slotted guide arm 31 and the slotted chain 33 are also located on the vertical plane, and the slotted chain 33 is sleeved on the peripheries of the first driving wheel 21, the first driven wheel 32 and the first tensioning wheel 37 and is meshed with each other.

With continued reference to fig. 4-5 of the specification, as a preferred embodiment, the tensioning arm is provided with a soil leveling mechanism 38, and two ends of the soil leveling mechanism 38 extend out of the working range of the slotting chain 33, and may have various forms, for example, a soil leveling plate or soil leveling block fixedly connected to the lower end of the tensioning arm, so long as soil excavated during slotting operation of the slotting chain 33 can be bored, leveled and transferred to a position far away from the inner working slot, and soil excavated during slotting operation is prevented from accumulating on the edge of the working slot, so as to prevent subsequent soil loosening operation or prevent yam from being extracted from the working slot. In this preferred embodiment, the screw conveyor mechanism coaxial with the first tension pulley 37 may be provided on the tension arm, and the portions of the screw conveyor mechanism located on both end surfaces of the first tension pulley 37 may have a symmetrical structure, so that when the first tension pulley 37 rotates, the portions of the screw conveyor mechanism located on both sides of the first tension pulley 37 are made to face in the opposite direction to the direction of conveyance of the soil, and the soil on both sides of the working tank is transferred in the direction away from the edge of the working tank.

Referring to fig. 4-5 of the drawings, as an alternative embodiment, the top surface of the slotted guide arm 31 is provided with a guide wheel 39 rotatably connected, the guide wheel 39 is located between the first driving wheel 21 and the first driven wheel 32, and the slotted chain 33 is sleeved on the periphery of the first driving wheel 21, the first driven wheel 32 and the guide wheel 39 and is meshed with each other. It will be appreciated that since the distance between the primary drive wheel 21 and the primary driven wheel 32 is relatively large and the slotted chain 33 is not completely stretched and straightened during operation, the guide wheel 39 is disposed at a position centered or centered on the top of the slotted guide arm 31, so that the slotted chain 33 is prevented from rubbing against the top of the slotted guide arm 31, and the slotted chain 33 is guided to operate more smoothly.

Referring to fig. 4-5 of the drawings, as a preferred embodiment, the slotted guide arm 31 includes a fixed section 311 connected to the support assembly and a telescopic section 312 provided with the first driven wheel 32, at least a portion of the telescopic section 312 is sleeved outside the fixed section 311 or is penetrated inside the fixed section 311, and a distance adjusting mechanism 313 is provided on the sides of the fixed section 311 and the telescopic section 312 to change the distance between the first driven wheel 32 and the first driving wheel 21. It will be appreciated that the first driven wheel 32 is located at the extreme end of the slotted guide arm 31 and is located at the extreme end of the soil layer during the slotting operation, and is subject to the greatest forces transmitted by the slotted chain 33, and therefore is most severely worn and requires periodic replacement according to the use conditions, but the operation is too cumbersome if the tensioning arm and/or tensioning wheel is/are adjusted each time the first driven wheel 32 is replaced. By arranging the part of the slotted guide arm 31 near the tail end as the slidable telescopic section 312 and sleeving or penetrating the fixed section 311 connected with the supporting assembly, and arranging the distance adjusting mechanism 313 between the telescopic section and the fixed section to change the distance between the first driven wheel 32 and the first driving wheel 21, the slotted chain 33 can be removed from the first driven wheel 32 by only adjusting the distance adjusting mechanism 313, so that the first driven wheel 32 can be overhauled or replaced.

Referring to fig. 7 of the specification, the working process of the lower yam harvester is briefly described:

as shown in fig. 1 of the description, the push-pull rod 23 drives the support assembly to rotate around the core mandrel 13 through the push-pull seat 19, so that the slotting device 3 is in an upturned position and is not in contact with the ground, and the slotting device can be driven or transferred under the traction of the tractor 11.

As shown in fig. 7 of the specification, the push-pull rod 23 drives the supporting assembly to rotate around the core shaft 13 through the push-pull seat 19, so that the slotting device 3 is in a sinking position, at least part of the slotting chains 33 near the first driven wheel are positioned below the ground, the slotting chains 33 rotate around the first driving wheel 21 and the first driven wheel 32 under the action of the first driving wheel 21, meanwhile, the tractor 11 moves along the direction of a to-be-excavated groove, and the moving direction is forward based on the head of the tractor 11, so that the groove with smaller depth can be excavated.

The push-pull rod 23 drives the supporting assembly to rotate around the nuclear mandrel 13 through the push-pull seat 19, so that the slotting device 3 continues to sink until most of slotting chains 33 are positioned below the ground, meanwhile, the tractor 11 moves along the direction of the to-be-excavated groove, and the moving direction is reverse based on the locomotive of the tractor 11, so that the groove with larger depth can be excavated.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (10)

1. A slotting mechanism, characterized in that it comprises a slotting chain (33), a slotting plate (34) and slotting teeth (35), wherein: the slotted chains (33) are connected end to form a loop-back path, and the loop-back path formed by the slotted chains (33) has a long and narrow integral appearance;

the outer peripheral surface of the slotting chain (33) is detachably connected with a plurality of slotting plates (34), the slotting plates (34) are arranged at intervals along the extending direction of the slotting chain (33), the slotting plates (34) are long plates, the length direction of the slotting plates (34) is perpendicular to the extending direction of the slotting chain (33), the middle part of each slotting plate (34) is connected with the slotting chain (33), and two ends of each slotting plate (34) respectively exceed two sides of the slotting chain (33);

each slotting plate (34) is far away from the plate surface of the slotting chain (33) and is provided with slotting teeth (35), and the slotting teeth (35) extend from the plate surface of the slotting plate (34) vertically to the direction far away from the slotting chain (33).

2. Slotting mechanism according to claim 1, wherein at least two adjacent slotting teeth (35) are in different projection positions in a direction perpendicular to the length of the slotting chain (33).

3. Slotting mechanism according to claim 2, characterized in that the projected position of four adjacent slotting teeth (35) in the direction perpendicular to the length of the slotting chain (33) varies gradually from one end of the slotting plate (34) to the other.

4. A slotting mechanism according to any one of claims 1-3, wherein each slotting tooth (35) is provided with a tapping block (36) at an end remote from the slotting plate (34), the tapping block (36) being elongated and the length direction of the tapping block (36) being parallel to the length direction of the slotting plate (34).

5. A slotting device, characterized in that it comprises a traction means (1), a driving means (2) and a slotting means (3), said slotting means (3) comprising a slotting mechanism according to any one of claims 1-4, wherein:

the traction device (1) comprises a tractor (11), a first traction arm (121) and a second traction arm (122) which longitudinally overhang are arranged at the tail part of the tractor (11) in parallel, a core shaft (13) which is in rotary connection is transversely erected between the overhanging end of the first traction arm (121) and the overhanging end of the second traction arm (122), and two ends of the core shaft (13) extend beyond the opposite side surfaces of the first traction arm (121) and the second traction arm (122) respectively; one end of the core shaft (13) is provided with a power input wheel (15) and is circumferentially fixed, and the power input wheel (15) is in transmission connection with a power output wheel (111) arranged on the tractor (11); the part of the core shaft (13) between the first traction arm (121) and the second traction arm (122) is provided with a supporting component, and at least part of the supporting component is sleeved on the periphery of the core shaft (13) and forms rotary connection;

the driving device (2) comprises a first driving wheel (21) which is sleeved in the middle of the nuclear mandrel (13) and is fixed in the circumferential direction, and the first driving wheel (21) divides the supporting assembly into two parts which are separated at two sides, have the same structure and are symmetrical; the traction device further comprises a push-pull rod (23) acting on the supporting assembly, one end of the push-pull rod (23) is hinged with one side, far away from the core shaft (13), of the supporting assembly, and the other end of the push-pull rod (23) extends to the tractor (11) and is in transmission connection with a hydraulic mechanism arranged on the tractor (11);

the grooving device (3) comprises a grooving guide arm (31), one end of the grooving guide arm (31) is fixedly connected with the supporting component, the other end of the grooving guide arm extends along the radial direction of the first driving wheel (21), and one end of the grooving guide arm (31) away from the supporting component is provided with a first driven wheel (32) which is rotationally connected; the first driving wheel (21) and the first driven wheel (32) are sleeved with the slotted chains (33) in meshed connection, and the slotted guide arms (31) are positioned in a loop-shaped path formed by the slotted chains (33).

6. The slotting device according to claim 5, wherein the overhanging end of the first traction arm (121) is provided with a first bearing (141), the overhanging end of the second traction arm (122) is provided with a second bearing (142), and the core shaft (13) is arranged in the first bearing (141) and the second bearing (142) in a penetrating way so as to be rotationally connected with the first traction arm (121) and the second traction arm (122);

the bearing assembly comprises a third bearing (171), a fourth bearing (172), a first bearing plate (181) and a second bearing plate (182), wherein the third bearing (171) and the fourth bearing (172) are sleeved on the core shaft (13) and are separated at two sides of the first driving wheel (21), and the inner rings of the third bearing (171) and the fourth bearing (172) and the core shaft (13) form circumferential fixation;

the first support plate (181) is arranged on the outer ring of the third bearing (171), the second support plate (182) is arranged on the outer ring of the fourth bearing (172), and the first support plate (181) and the second support plate (182) extend in parallel towards the direction far away from the core shaft (13) and the plate surfaces of the first support plate and the second support plate are coplanar.

7. Slotting device according to claim 5 or 6, characterized in that the extension line of the slotting guide arm (31) near one end of the supporting component passes through the first driving wheel (21), and the two side surfaces of the slotting guide arm (31) are respectively fixedly connected with the two parts of the supporting component which are respectively arranged at the two sides of the first driving wheel (21).

8. Slotting device according to claim 5 or 6, characterized in that the slotting guide arm (31) comprises a fixed section (311) connected with the support assembly and a telescopic section (312) provided with the first driven wheel (32), at least part of the telescopic section (312) is sleeved outside the fixed section (311) or penetrates inside the fixed section (311), and distance adjusting mechanisms (313) are arranged on the sides of the fixed section (311) and the telescopic section (312) so as to change the distance between the first driven wheel (32) and the first driving wheel (21).

9. Slotting device according to claim 5 or 6, characterized in that the bottom surface of the slotting guide arm (31) is provided with a tensioning arm extending vertically, the tensioning arm is located between the first driving wheel (21) and the first driven wheel (32) and is close to the first driving wheel (21), one end of the tensioning arm far away from the slotting guide arm (31) is rotationally connected with a first tensioning wheel (37), and the slotting chain (33) is sleeved on the periphery of the first driving wheel (21), the first driven wheel (32) and the first tensioning wheel (37) and is meshed and connected.

10. Slotting device according to claim 5 or 6, characterized in that the top surface of the slotting guide arm (31) is provided with a guide wheel (39) which is connected in a rotating way, the guide wheel (39) is positioned between the first driving wheel (21) and the first driven wheel (32), and the slotting chain (33) is sleeved on the periphery of the first driving wheel (21), the first driven wheel (32) and the guide wheel (39) and connected in a meshed way.