CN108575125B

CN108575125B - Amphibious rotary cultivator cutter shaft assembly

Info

Publication number: CN108575125B
Application number: CN201810758930.1A
Authority: CN
Inventors: 赵军; 赵英霞
Original assignee: HUBEI SHUANGYU MACHINERY TECHNOLOGY CO LTD
Current assignee: HUBEI SHUANGYU MACHINERY TECHNOLOGY CO LTD
Priority date: 2018-07-11
Filing date: 2018-07-11
Publication date: 2021-02-23
Anticipated expiration: 2038-07-11
Also published as: CN108575125A

Abstract

The invention relates to a cutter shaft assembly, in particular to a cutter shaft assembly of a amphibious rotary cultivator, and belongs to the technical field of agricultural mechanical parts. The cutter shaft assembly comprises a cutter shaft, a rotary blade holder, rotary blades, supporting discs and a grass-tying depth-limiting rod, wherein a spline sleeve is installed at one end of the cutter shaft, a plurality of supporting discs are welded on the cutter shaft between the spline sleeve and the bearing blocks at intervals, the rotary blade holder is evenly distributed on the circumference of the cutter shaft between the supporting discs, and the rotary blades are fixedly installed on the rotary blade holder through bolts. The rotary tiller cutter shaft assembly is characterized in that the rotary tiller cutter seats are arranged on the cutter shaft in a staggered mode, and the rotary blades are oppositely arranged on the adjacent rotary tiller cutter seats; the blade has small resistance to soil penetration, and the soil is not hardened after rotary tillage; greatly improving the rotary tillage effect.

Description

Amphibious rotary cultivator cutter shaft assembly

Technical Field

The invention relates to a cutter shaft assembly, in particular to a cutter shaft assembly of a amphibious rotary cultivator, and belongs to the technical field of agricultural mechanical parts.

Background

The rotary cultivator is a tillage machine developed in recent years in China, and the rotary cultivator is a driving type soil tillage machine which achieves the purpose of rotary tillage by a rotary cutter shaft assembly. The rotary cultivator is divided into a horizontal shaft type and a vertical shaft type according to the configuration mode of a rotary cultivating cutter shaft, and can be divided into a dry land rotary cultivator, a paddy field rotary cultivator, a paddy and dry land dual-purpose compound rotary cultivator and the like according to the nature of a farmland. The cutter shaft assembly of the rotary cultivator, which is one of the most important parts of the rotary cultivator, is arranged on a frame of the rotary cultivator through a short shaft and a bearing seat, the rotary cultivator is arranged on the cutter shaft through a cutter holder, and the cutter holders are symmetrically arranged on the cutter shaft in a cross shape; it integrates ploughing and harrowing into one body, and can implement several times of ploughing and harrowing work for farmland by means of one-time rotary tillage operation.

However, the current rotary tiller is limited by the structural form of the cutter shaft assembly, so that the resistance of the rotary tiller when the rotary tiller is driven into the soil is large, the rotary tillage depth is different, and the rotary tillage depth is uneven, so that the rotary tillage effect and quality are influenced, the machine is easy to damage, and meanwhile, power loss is caused to a traction machine. Meanwhile, due to structural reasons, the rotary blades cannot be assembled at the maximum outer end of the cutter shaft, so that the tilling width is reduced in the working process, and in addition, the rotary blades are distributed in an array mode in the circumferential direction of the cutter roller shaft in the existing rotary cultivator, so that the rotary blades are difficult to dig in due to the fact that the rotary cultivator is large in number during working, the stability and soil breaking performance of operation are poor, and the crop root stubble covering condition is influenced to a certain extent.

Disclosure of Invention

The invention aims to provide a cutter shaft assembly of a amphibious rotary cultivator, which can effectively increase the width of a tillage pair, has small resistance to soil penetration of a rotary cultivator cutter, consistent rotary tillage depth and good stable soil crushing performance and grass burying performance during operation, and solves the problems that the prior rotary cultivator cutter is difficult to penetrate soil, has large transmission power consumption and the stable soil crushing performance and the grass burying performance are influenced during operation due to array distribution.

The technical scheme of the invention is as follows:

the utility model provides a dual-purpose rotary cultivator arbor assembly in floods and droughts, includes arbor, ploughing blade seat, rotary blade, supporting disk and pricks careless depth-limiting pole, its characterized in that: one end of the cutter shaft is provided with a spline sleeve, the spline sleeve is used for being connected with a gearbox of the rotary cultivator, the other end of the cutter shaft is provided with a bearing seat, the bearing seat is used for being connected with a rack of the rotary cultivator, and a side edge closing cutter is arranged on the rack close to the bearing seat; a plurality of supporting discs are welded on the cutter shaft between the spline sleeve and the bearing seat at intervals, and the supporting discs are mutually connected through grass-tying depth-limiting rods uniformly distributed on the circumference of the supporting discs; an amplifying knife is fixedly arranged on the supporting disk at the end of the grass-tying depth-limiting rod through an amplifying knife seat, plowing knife seats are uniformly distributed on the circumference of the knife shaft between the supporting disks, and rotary tillage knives are fixedly arranged on the plowing knife seats.

The plowing knife seats are arranged on the knife shafts between the grass tying depth-limiting rods in a wavy manner, and the plowing knife seats between the grass tying depth-limiting rods are arranged in a staggered manner.

The ploughing tool holder is spirally arranged on the whole circumference of the cutter shaft.

The rotary blades are arranged oppositely on the adjacent blade seats.

The rotary tillage cutters are arranged on the cutter shaft in the same direction.

The number of the grass-tying depth-limiting rods is 5.

The circumference of the spline housing and the bearing seat is uniformly provided with grass chopping sheets.

The amplification cutter is in a bent arc shape, a connecting seat formed by bending is arranged at the bottom end of the amplification cutter, and a fixing hole is formed in the connecting seat.

The amplification tool apron comprises fixed plate and fixing base, the fixing base has been welded on the fixed plate, the fixing base is the cuboid, is provided with the assembly groove on the fixing base, is provided with the pilot hole in the assembly groove, the amplification tool is by fixing bolt fixed mounting on the fixing base.

The fixing plate is in a bent arc shape.

The edge closing knife comprises a plough knife body and a connecting seat, the connecting seat is in an arc shape, the plough knife body is welded on the connecting seat in an inclined mode, and a plurality of fixing holes are formed in the connecting seat on the rear side of the plough knife body.

Compared with the prior art, the invention has the beneficial effects that:

the tillage knife seats of the knife shaft assembly are installed on the knife shaft in a staggered manner, the tillage knife seats are spirally arranged on the whole circumference of the knife shaft, and the rotary tillage knives are oppositely installed on the adjacent tillage knife seats; the resistance of the rotary blade to the soil is small, and the soil is not hardened after rotary tillage; greatly improving the rotary tillage effect. The problems that the existing rotary tillage cutter is difficult to dig in soil due to array distribution, the transmission power consumption is large, and the stable soil smashing performance and the grass burying performance are influenced during operation are solved. The operation width can be effectively increased by the aid of the amplitude-increasing knife on the grass-tying depth-limiting rod and the edge-closing knife on the rack.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an assembly schematic of the present invention;

FIG. 3 is a schematic view of the structure of the amplification blade of the present invention;

FIG. 4 is a schematic structural view of the edge closing knife of the present invention;

FIG. 5 is a schematic structural view of an amplification tool holder according to the present invention;

fig. 6 is an assembly view of an amplification cutter and an amplification cutter holder according to the present invention.

In the figure: 1. the straw cutting machine comprises a cutter shaft, 2, a tillage cutter holder, 3, a rotary tillage cutter, 4, a supporting plate, 5, a grass tying depth limiting rod, 6, a trimming cutter, 7, a grass chopping piece, 8 and a spline sleeve; 9. bearing block, 10, rotary cultivator, 11, increase sword, 12, coulter body, 13, connecting seat, 14, increase sword seat, 15, fixed plate, 16, fixing base, 17, assembly groove, 18, pilot hole, 19, fixed orifices.

Detailed Description

The amphibious rotary tiller shaft assembly comprises a shaft 1, a tiller holder 2, rotary blades 3, a support plate 4 and a grass-tying depth-limiting rod 5. The grass-tying depth-limiting rod 5 not only limits the depth of the rotary blade 3, but also increases the soil-breaking effect by matching with the rotary blade 3, and is used for burying weeds on the surface of the soil in the soil to accelerate the rotting of the weeds.

The spline housing 8 is installed at one end of the cutter shaft 1, the spline housing 8 is used for being connected with a gearbox of a rotary cultivator 10, the bearing seat 9 is installed at the other end of the cutter shaft 1, the bearing seat 9 is used for being connected with a rack of the rotary cultivator 10, and the edge closing cutter 6 is fixedly installed on the rack close to the bearing seat 9. The edge closing knife 6 is composed of a coulter body 12 and a connecting seat 13, the connecting seat 13 is in a curved arc shape, the coulter body 12 is welded on the connecting seat 13 in an inclined mode, and the edge closing knife 6 is installed on the rack through a fixing hole in the connecting seat 13 through a bolt. The edge-closing knife 6 is used for turning over the corners of the farmland where the rotary tillage knife 3 cannot work, so that the farmland is prevented from leaving working dead angles, and meanwhile, the edge-closing knife plays a role in closing up the farmland soil at the edge of the assembly inwards, so that the smoothness of the working edges is kept.

The circumference of the spline housing 8 and the bearing seat 9 is evenly provided with grass chopping pieces 7. The grass chopping sheet 7 is used for chopping weeds wound on the cutter shaft 1 so as to prevent the weeds from entering the bearing block to wind the cutter shaft 1 or cause the loss of the efficacy of the rotary cultivator 10.

3-5 supporting disks 4 are welded on the cutter shaft 1 between the spline housing 8 and the bearing seat 9 at intervals, and the supporting disks 4 are in an integral circular ring shape or a circular ring shape consisting of two semicircles.

The supporting discs 4 are mutually connected through 5 grass-tying depth-limiting rods 5 uniformly distributed on the circumference of the supporting discs 4; the support disc 4 is connected with the grass-tying depth-limiting rod 5 by welding. An amplifying knife 11 is fixedly arranged on a bearing seat 9 at the end of the grass binding depth-limiting rod 5 through an amplifying knife holder 14, the amplifying knife 11 is in a bent arc shape, a connecting seat formed by bending is arranged at the bottom end of the amplifying knife 11, and a fixing hole (19) is formed in the connecting seat; the amplification cutter 11 is fixedly mounted on the amplification cutter holder 14 through a fixing hole 19 by a fixing bolt.

The amplification tool apron 14 is composed of a curved fixed plate 15 and a fixed seat 16, the fixed plate 15 is welded with the fixed seat 16, the fixed seat 16 is rectangular, an assembly groove 17 is formed in the fixed seat 16, and an assembly hole 18 is formed in the assembly groove 17; the amplification cutter 11 is fixedly arranged on the amplification cutter seat 14 through the matching of the assembling hole 18 and the fixing hole 19 by a fixing bolt. The function of the amplification cutter 11 is to carry out rotary tillage on the farmland at the joint of the cutter shaft 1 and the frame, so that the problem that the farmland at the joint cannot be operated by the conventional rotary tillage cutter 3 is solved, and the operation width is increased.

When the amplification tool apron 14 is assembled, the amplification tool 11 is welded on the outer side of the bearing seat 9 through the fixing plate 15, and meanwhile, the amplification tool 11 extends out from the position between the grass-tying depth-limiting rods 5, so that the fixing seat 16 and the grass-tying depth-limiting rods 5 can be welded to increase the assembling strength of the amplification tool apron 14. In the working process, once the amplification cutter 11 is worn, the amplification cutter can be conveniently replaced through the fixing bolt without being integrally replaced together with the amplification cutter seat 14.

The tool shaft circumference between the supporting disk is evenly distributed with the tool post 2, the tool post 2 is arranged in a wavy way (staggered in the radial direction) on the tool shaft 1 between the grass-tying depth-limiting rods 5, the tool post 2 between the grass-tying depth-limiting rods 5 is arranged in a staggered way in the axial direction, and the tool post 2 is arranged in a spiral way on the whole circumference of the tool shaft 1. The rotary blade 3 is fixedly arranged on the tillage blade holder 2 through a bolt; the rotary blades 3 are arranged oppositely on the adjacent blade seats 2. Depending on the actual situation of the field work, the rotary blades 3 may be arranged in the same direction on the blade shafts 1, but the rotary blades 3 between the two blade shafts 1 must be arranged in opposite directions.

Because the tillage tool holders 2 are spirally arranged on the whole circumference of the cutter shaft 1, and the rotary blades 3 are oppositely arranged on the adjacent tillage tool holders 2; therefore, the rotary blades 3 on the blade seat 2 are more circular and smooth on the circumference of the blade shaft 1, and the rotary blades 3 are sequentially inserted into the soil; the soil after rotary tillage is not hardened while the soil penetration resistance of the rotary tillage cutter 3 is reduced; effectively improving the crushing effect of the farmland soil. The problem of current rotary cultivator with rotary blade 3 array distribution on the circumferencial direction of sword roller axle, the rotary blade number that the during operation simultaneously buries is more, causes the rotary blade difficulty of burying, leads to the transmission consumption big, the steadiness ability and the hack performance of operation are poor, and the crop root stubble covers the condition and receives certain influence is solved.

The cutter shaft assembly is symmetrically arranged on two sides of the gearbox during assembly, and in the working process, the tillage cutter seats 2 are arranged on the cutter shaft 1 in a staggered manner, the tillage cutter seats 2 are spirally arranged on the whole circumference of the cutter shaft 1, and the rotary blades 3 are oppositely arranged on the adjacent tillage cutter seats 2; the resistance of the rotary blade 3 to the soil is small, and the soil is not hardened after rotary tillage; greatly improving the rotary tillage effect. The problems that the existing rotary tillage cutter is difficult to dig in soil due to array distribution, the transmission power consumption is large, and the stable soil smashing performance and the grass burying performance are influenced during operation are solved. The operation width can be effectively increased by the aid of the increasing cutter 11 on the grass-tying depth-limiting rod 5 and the edge-closing cutter 6 on the rack. The cutter shaft assembly has the characteristics of simple structure and good practicability, and is particularly suitable for being installed and used in rotary cultivators for paddy and dry fields.

Claims

1. A amphibious rotary cultivator cutter shaft assembly with an amplitude-increasing cutter comprises a cutter shaft (1), a rotary cultivator cutter seat (2), a rotary cultivator cutter (3), a supporting plate (4) and a grass-tying depth-limiting rod (5), wherein a spline sleeve (8) is arranged at one end of the cutter shaft (1), the spline sleeve (8) is used for being connected with a gearbox of a rotary cultivator (10), a bearing seat (9) is arranged at the other end of the cutter shaft (1), and grass-chopping pieces (7) are uniformly distributed on the circumferences of the spline sleeve (8) and the bearing seat (9); the bearing block (9) is used for being connected with a rack of the rotary cultivator (10), and the rack close to the bearing block (9) is fixedly provided with the edge closing knife (6); the edge folding knife (6) aims to turn over the edges of the farmland where the rotary tillage knife (3) cannot work so as to avoid the operation dead angle left on the farmland, and simultaneously plays a role of folding the farmland soil at the edges of the assembly inwards to keep the edges of the operation belt smooth; the edge closing knife (6) is composed of a coulter body (12) and a connecting seat (13), the connecting seat (13) is in a curved arc shape, the coulter body (12) is welded on the connecting seat (13) in an inclined mode, and a plurality of fixing holes are formed in the connecting seat (13) on the rear side of the coulter body (12); a plurality of supporting discs (4) are welded on the cutter shaft (1) between the spline housing (8) and the bearing seat (9) at intervals, and the supporting discs (4) are mutually connected through grass-tying depth-limiting rods (5) uniformly distributed on the circumference of the supporting discs (4); the method is characterized in that: an amplification cutter (11) is fixedly arranged on a bearing seat (9) at the end of the grass-tying depth-limiting rod (5) through an amplification cutter holder (14); the amplification cutter (11) is used for rotary tillage of a farmland at the joint of the cutter shaft (1) and the frame, so that the problem that the existing rotary tillage cutter cannot work on the farmland at the joint is solved, and the working width is increased; the amplification cutter (11) is in a bent arc shape, a connecting seat formed by bending is arranged at the bottom end of the amplification cutter (11), and a fixing hole (19) is formed in the connecting seat; the amplification cutter (11) is fixedly arranged on the amplification cutter holder (14) through a fixing bolt through a fixing hole (19); the amplification tool apron (14) is composed of a fixed plate (15) and a fixed seat (16), the fixed plate (15) is in a bent arc shape, the fixed seat (16) is welded on the fixed plate (15), the fixed seat (16) is in a rectangular shape, an assembly groove (17) is formed in the fixed seat (16), and an assembly hole (18) is formed in the assembly groove (17); the amplification cutter (11) is fixedly arranged on the amplification cutter holder (14) through the matching of the assembly hole (18) and the fixing hole (19) by a fixing bolt, and when the amplification cutter holder (14) is assembled, the amplification cutter holder is welded on the outer side of the bearing seat (9) through the fixing plate (15), and meanwhile, the amplification cutter (11) extends out from the space between the grass bundling depth limiting rods (5); the circumference of the cutter shaft (1) between the supporting discs (4) is evenly provided with the tillage cutter seats (2), and the tillage cutter seats (2) are fixedly provided with the rotary blades (3) through bolts.

2. The amphibious rotovator shaft assembly as set forth in claim 1, wherein: the plowing knife seats (2) are arranged on the knife shafts (1) between the grass-tying depth-limiting rods (5) in a wavy manner, and the plowing knife seats (2) between the grass-tying depth-limiting rods (5) are arranged in a staggered manner.

3. The amphibious rotovator shaft assembly as set forth in claim 1, wherein: the ploughing tool holder (2) is spirally arranged on the whole circumference of the cutter shaft (1).

4. The amphibious rotovator shaft assembly as set forth in claim 1, wherein: the rotary blades (3) are oppositely arranged on the adjacent tillage blade seats (2).

5. The amphibious rotovator shaft assembly as set forth in claim 1, wherein: the rotary blades (3) are arranged on the blade shaft (1) in the same direction.