阅读说明：本技术 一种适用于硬质土壤的旋耕机 (Rotary cultivator suitable for hard soil ) 是由 刘超 刘元正 孟桂平 于 2021-08-03 设计创作，主要内容包括：本发明涉及旋耕机技术领域,具体公开了一种适用于硬质土壤的旋耕机；包括机架、减速机、刀轴和旋刀片,位于所述刀轴上方的机架上设置有敲杆安装轴,所述敲杆安装轴上连接有一排敲杆,且敲杆的端部连接有破碎块,所述敲杆安装轴的一端连接有伸出侧板的凸轴一,所述凸轴一上连接有转盘,且转盘的外圆面上均匀设置有若干组齿面,所述凸轴一与侧板之间设置有扭簧组件,所述刀轴的同一端连接有伸出侧板的凸轴二,所述凸轴二上连接有与转盘上齿面相啮合的从动齿轮；本发明公开的旋耕机实现了对结块土壤的有效破碎,整个旋耕机的结构设计新颖,使用效果优异,尤其适用于硬质土壤地面的耕耙。(The invention relates to the technical field of rotary cultivators, and particularly discloses a rotary cultivator suitable for hard soil; the punching machine comprises a rack, a speed reducer, a cutter shaft and a rotary blade, wherein a knocking rod mounting shaft is arranged on the rack above the cutter shaft, a row of knocking rods are connected onto the knocking rod mounting shaft, broken blocks are connected onto the end parts of the knocking rods, one end of the knocking rod mounting shaft is connected with a first protruding shaft extending out of a side plate, a rotary table is connected onto the first protruding shaft, a plurality of groups of tooth surfaces are uniformly arranged on the outer circumferential surface of the rotary table, a torsion spring assembly is arranged between the first protruding shaft and the side plate, the same end of the cutter shaft is connected with a second protruding shaft extending out of the side plate, and a driven gear meshed with the tooth surfaces on the rotary table is connected onto the second protruding shaft; the rotary cultivator disclosed by the invention realizes effective crushing of the caking soil, has novel structural design and excellent use effect, and is particularly suitable for plowing and harrowing on hard soil ground.)

1. A rotary cultivator applicable to hard soil comprises a frame, a speed reducer, a cutter shaft and rotary blades, wherein first bearing seats connected with the two ends of the cutter shaft are installed on two side plates of the frame, a plurality of cutter seats are connected on the cutter shaft at equal intervals, the rotary blades are fixedly installed on the cutter seats, the rotary cultivator is characterized in that a knocking rod installation shaft is arranged on the frame above the cutter shaft, a row of knocking rods are connected on the knocking rod installation shaft, the knocking rods and the rotary blades are arranged in a staggered mode, the end portion of each knocking rod is connected with broken blocks, second bearing seats connected with the two ends of the knocking rod installation shaft are arranged on the two side plates of the frame, one end of the knocking rod installation shaft is connected with a first convex shaft extending out of a side plate, a rotary table is connected on the first convex shaft, a plurality of groups of tooth surfaces are evenly arranged on the outer circular surface of the rotary table, and torsion spring assemblies are arranged between the first convex shaft and the side plate, the same end of the cutter shaft is connected with a second protruding shaft extending out of the side plate, and the second protruding shaft is connected with a driven gear meshed with the upper tooth surface of the rotary table.

2. The rotary cultivator for hard soil according to claim 1, wherein the torsion spring assembly comprises a mounting plate fixedly connected with the side plate, a coil spring is arranged in the mounting plate, and one end of the coil spring is fixedly connected with the first protruding shaft.

3. The rotary cultivator for hard soil according to claim 1 or 2, wherein the outer side of the side plate is provided with a gear box, and the rotary plate, the driven gear and the torsion spring assembly are arranged in the gear box.

4. The rotary cultivator for hard soil according to claim 1, wherein the cutter base is provided with an upper mounting hole and a lower mounting hole, and the rotary blade is fixedly connected with the mounting seat through bolts in the two mounting holes.

5. The rotary cultivator for the hard soil as claimed in claim 1, wherein the tooth surface arranged on the outer circular surface of the rotary plate is 1-3 groups.

6. The rotary cultivator for hard soil according to claim 1, wherein a third bearing seat is further arranged on the upper surface of the speed reducer, and the middle section of the knocking rod mounting shaft is rotatably connected with the third bearing seat.

7. The rotary cultivator for hard soil according to claim 1, wherein the frame is welded with a connecting frame connected with a tractor.

Technical Field

The invention relates to the technical field of rotary cultivators, and particularly discloses a rotary cultivator suitable for hard soil.

Background

The rotary cultivator is a cultivator which is matched with a tractor to complete the operations of ploughing and harrowing. The blade that current rotary cultivator set up through the interval on the arbor when ploughing the harrow soil carries out the pine to dig soil, the blade can dig soil from subaerial blocking when the pine is dug, then get rid of and carry out the breakage on the backplate of frame, this kind of rotary cultivator is general to the blocking soil crushing effect who digs, mainly because the rotational speed of arbor should not set up too high when the farming of rotary cultivator, consequently the blocking soil that is planed is got rid of the impact force on the backplate not big, lead to the partial more real soil can not by the breakage. Therefore, the traditional rotary tiller is not ideal in loosening and planing hard soil ground, and people are required to break the uncrushed soil blocks by using the hammer after the rotary tiller is loosened and planed.

For example, the invention with the application number of 2016103621544 discloses a cutter roll of a rotary cultivator, which comprises a baffle mounting shaft, connecting rod fixing parts are mounted on the left side and the right side below the baffle mounting shaft, a cutter roll connecting rod is mounted below the connecting rod fixing parts, a cutter roll driving device is mounted below the cutter roll connecting rod, a rotating motor main body is mounted at the right end of the cutter roll driving device, rotating motor stator windings are mounted above and below the inside of the rotating motor main body respectively, a rotating motor middle shaft is mounted in the middle of the rotating motor stator windings, a rotating motor rotor winding is mounted on the rotating motor middle shaft, a rotating motor connecting shaft is mounted on the left side of the rotating motor middle shaft, six main rotary tillage cutter rolls are mounted in the middle of two rotating motor connecting shafts, and root and stem chopping cutter rolls are mounted in the middle of the six main rotary tillage cutter rolls; when the cutter roller of the rotary cultivator disclosed by the invention is used for loosening and planing hard soil, the thrown soil blocks cannot be fully crushed, and the cutter roller cannot be effectively applied to effective tillage and harrowing of hard soil ground. Therefore, aiming at the defects of the traditional rotary cultivator and the knife roller of the rotary cultivator, the technical problem to be solved is to design the rotary cultivator which can fully crush the lumpy soil and is suitable for the hard soil.

Disclosure of Invention

The invention aims to design a rotary cultivator which can fully crush lumpy soil and is suitable for hard soil, aiming at the defects of the traditional rotary cultivator and the knife roller of the rotary cultivator in the background technology.

The invention is realized by the following technical scheme:

a rotary cultivator suitable for hard soil comprises a rack, a speed reducer, a cutter shaft and a rotary blade, wherein the speed reducer is fixedly installed on the rear end face of the rack, the upper end of the speed reducer is connected with a transmission shaft connected with an engine on a tractor, and the speed reducer is used for transmission by taking the engine as a power source in the harrowing process.

The cutter shaft is horizontally arranged between two side plates of the rack, first bearing seats connected with two ends of the cutter shaft are arranged on the two side plates, a plurality of cutter seats are connected on the cutter shaft at equal intervals, and the rotary blade penetrates through a through hole in each cutter seat through a bolt, so that the rotary blade and the cutter seats are fixedly installed.

Be located be provided with the rapping bar installation axle in the frame of arbor top, be connected with one row of rapping bar on the rapping bar installation axle to rapping bar and spinning blade dislocation set prevent that the rapping bar can lead to the fact the damage to spinning blade with spinning blade striking in the rotation process. The end part of each knocking rod is connected with a breaking block, the breaking block is a steel block, and the lower end face of the breaking block is a sharp breaking head.

The utility model discloses a rack, including rack, knock rod installation axle, protruding axle I, the both sides board of frame is provided with the second bearing seat that is connected with knock rod installation axle both ends on, the one end of knock rod installation axle is connected with the protruding axle I that stretches out the curb plate, be connected with the carousel on the protruding axle I, and evenly be provided with a plurality of groups flank of tooth on the outer disc of carousel, be provided with the torsional spring subassembly between protruding axle I and the curb plate.

The same end of the cutter shaft is connected with a second protruding shaft extending out of the side plate, and a driven gear is connected to the second protruding shaft. Make whole rapping bar installation axle and arbor antiport through the meshing transmission effect between flank of tooth and the driven gear on the carousel, hold up the potential through the torsional spring subassembly simultaneously, the installation axle of rapping bar can make rapping bar and broken piece striking to the blocking soil of being planed under the effect of torsional spring subassembly when flank of tooth on the carousel and driven gear slippage to accomplish the effective breakage to blocking soil.

As a further arrangement of the above scheme, the torsion spring assembly comprises a mounting disc fixedly connected with the side plate, a coil spring is arranged in the mounting disc, and one end of the coil spring is fixedly connected with the first protruding shaft; the specific coil spring assembly does not comprise the structural design, and a torsion spring can be directly sleeved on the first protruding shaft to fixedly connect one end of the torsion spring with the side plate and fixedly connect the other end of the torsion spring with the first protruding shaft.

As a further arrangement of the above scheme, a gear box is arranged on the outer side surface of the side plate, and the rotary disc, the driven gear and the torsion spring assembly are arranged in the gear box; the gear box is not a traditional gear box, is similar to a protective cover, can separate the internal rotary disc, the driven gear and the torsion spring assembly from the outside, and plays a good protective role.

As a further arrangement of the above scheme, the tool apron is provided with an upper mounting hole and a lower mounting hole, and the rotary blade is fixedly connected with the mounting seat through bolts in the two mounting holes; through two mounting holes of seting up, use two bolts about can will revolve and fix between blade and the blade holder more stably.

As a further arrangement of the scheme, 1-3 groups of tooth surfaces are arranged on the outer circular surface of the turntable; tooth surface quantity that sets up on the outer disc of the carousel of specific setting is the same with cutter shaft circumference upper cutter seat group number, and it is broken all can be strikeed by the broken piece when needing to reach every group and revolve the blade and dig caking soil.

As a further arrangement of the above scheme, a third bearing seat is further arranged on the upper surface of the speed reducer, and the middle section of the knock bar mounting shaft is rotationally connected with the third bearing seat; the third bearing seat can further ensure the stability of the knocking rod installation shaft in the actual operation process

As a further arrangement of the scheme, a connecting frame connected with a tractor is welded on the rack; the connecting frame is not shown in the figure and is a common structure on the existing rotary cultivator.

Has the advantages that:

the rotary cultivator disclosed by the invention is based on the prior art, a rotating shaft is arranged above a cutter shaft, a row of knocking rods with broken fragments at the end parts are welded on the rotating shaft, the knocking rods and rotary blades on the cutter shaft are arranged in a staggered manner, meanwhile, a gear is arranged at one end of the cutter shaft, and a rotary disc with a tooth surface is arranged at one part of the rotating shaft; when the arbor is rotatory when ploughing the harrow through rotating the blade to stereoplasm soil ground, rotating the blade and can digging the caking soil of stereoplasm and throw out towards broken fragment department, and this pivot also can reverse rotation at arbor pivoted in-process and carry out the accumulation potential through the coil spring spare, treat the caking soil and throw up the back, flank of tooth on the carousel and gear slippage mutually, then whole pivot can reverse rotation in the twinkling of an eye under the effect of coil spring spare, thereby make broken piece meet to the caking soil rotation of throwing up, make caking soil and broken fragment when the contact relative impact velocity between them great, can realize the effective breakage with caking soil.

In a word, the rotary cultivator disclosed by the invention effectively solves the problem that the existing rotary cultivator cannot harrow and break hard soil ground, enables the planed caked soil to impact broken blocks during harrowing through structural improvement and redesign, realizes effective breaking of the caked soil, has novel structural design and excellent use effect, and is particularly suitable for harrowing on hard soil ground.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of a first angular perspective structure of the present invention;

FIG. 2 is a schematic view of a second angular perspective structure according to the present invention;

FIG. 3 is a schematic perspective view of the present invention with the gear box and the rotary blade removed;

FIG. 4 is a schematic perspective view of a rotary disk, a driven gear, a disk spring member and the like according to the present invention;

FIG. 5 is a plan view of the interior of the gear case of the present invention.

The method comprises the following steps of 1-side plate, 2-end plate, 3-speed reducer, 4-transmission shaft, 5-cutter shaft, 501-first protruding shaft, 6-cutter seat, 601-perforation, 7-rotary blade, 8-first bearing seat, 9-rotary table, 901-tooth surface, 10-knocking rod installation shaft, 101-second protruding shaft, 11-second bearing seat, 12-driven gear, 13-installation disc, 14-disc spring piece, 15-knocking rod, 16-metal fragment breaking, 17-gear box and 18-third bearing seat.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", and,

The terms "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like, refer to an orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can 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 meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail with reference to the accompanying drawings 1 to 5, in conjunction with the embodiments.

The invention discloses a rotary cultivator applicable to hard soil, which is improved based on the prior rotary cultivator, the main body of the tractor comprises a frame which is formed by welding a left side plate 1, a right side plate 1 and a rear end plate 2, a connecting frame (not shown in the figure) connected with the tractor is welded on the frame, a speed reducer 3 is welded on the rear end plate 2, the upper end of the speed reducer 3 is connected with a transmission shaft 4 connected with an engine on a tractor (in the figure), the speed reducer 3 is rotatably connected with a horizontal cutter shaft 5, a plurality of tool holders 6 are welded on the cutter shaft 5 at equal intervals, a rotary blade 7 is fixedly arranged on each tool holder 6 through a bolt, the tool bits at the top ends of all the rotary blades 7 on the cutter shaft 5 are bent towards one side, in addition, the upper and lower through holes 601 are formed in the tool apron 6, and the rotary blade 7 can be fixed more stably through bolts arranged in the upper and lower through holes 601.

The side plates 1 at the left end and the right end of the cutter shaft 5 are respectively provided with a first bearing seat 8 which is used for being rotationally connected with the cutter shaft 5, one end part of the cutter shaft 5 is connected with a first convex shaft 501 which penetrates through the first bearing seats 8 and the side plates 1, the end part of the first convex shaft 501 is connected with a rotary table 9, and 1-3 groups of tooth surfaces 901 are uniformly arranged on the outer circular surface of the rotary table 9.

A horizontal knock bar mounting shaft 10 is provided above the inside of the knife shaft 5, and second bearing blocks 11 for rotatably connecting both ends of the knock bar mounting shaft 10 are also mounted on the left and right side plates 1, a second protruding shaft 101 passing through the second bearing blocks 11 and the side plates is connected to the same end of the knock bar mounting shaft 10 and the knife shaft 5, a driven gear 12 is connected to the end of the second protruding shaft 101, and the driven gear 12 can mesh with a tooth surface 901 on the turntable 9. Meanwhile, a mounting plate 13 is welded on the outer surface of the side plate 1 at the position where the second protruding shaft 101 penetrates through the side plate 1, a coil spring member 14 is arranged in the mounting plate 13, and one end of the coil spring member 14 is connected with the second protruding shaft 101. In addition, in order to prevent soil or impurities from affecting or damaging the turntable 9, the driven gear 12, the coil spring member 14, and the like during actual operation, a gear case 17 or a dust cover is welded to the outer surface of the side plate 1, and the turntable 9, the driven gear 12, the coil spring member 14, and the like can be isolated from the outside by the gear case 17 or the dust cover.

A row of knocking rods 15 are welded on the knocking rod mounting shaft 10, the knocking rods 15 are arranged at equal intervals in specific arrangement and are spatially staggered with the rotary blades 7, a metal fragment 16 is connected to the end of each knocking rod 15, and the fragment 16 is a sharp breaking head towards the inner lower end of the rack. In addition, in order to ensure the stable rotation of the rapping bar mounting shaft 10, a third bearing seat 18 is welded on the upper surface of the speed reducer 3, and the middle section of the rapping bar mounting shaft 10 is rotatably connected with the third bearing seat 18.

When the rotary cultivator is used for harrowing hard soil ground, the rotary table 9 synchronously rotates along with the rotation of the cutter shaft 5, the tooth surface 901 on the rotary table 9 is meshed with the driven gear 12 to drive the knocking rod mounting shaft 10 to reversely rotate, meanwhile, the disc spring member 14 in the mounting disc 13 is twisted to accumulate potential while the knocking rod mounting shaft 10 reversely rotates, and after the tooth surface 901 and the driven gear 12 slip, the whole knocking rod mounting shaft 10 instantaneously rotates towards the inner end of the machine frame under the action of the disc spring member 14, so that the knocking rod 15 and the metal broken blocks 16 are driven to impact the planed soil blocks, and the effect of effectively crushing the soil blocks is achieved.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.