CN113099785A

CN113099785A - Multifunctional seeder

Info

Publication number: CN113099785A
Application number: CN202110406920.3A
Authority: CN
Inventors: 盛冬平
Original assignee: Changzhou Institute of Technology
Current assignee: Changzhou Institute of Technology
Priority date: 2021-04-15
Filing date: 2021-04-15
Publication date: 2021-07-13
Anticipated expiration: 2041-04-15
Also published as: CN113099785B

Abstract

The invention discloses a multifunctional seeder, which comprises a rack assembly, a compaction and walking system, a material storage and distribution system and a transmission system. This multifunctional seeding machine has designed the reverse connecting rod actuating mechanism of unique stay cord control for can be through controlling the stay cord, realize that the seeder furrow opener can normally carry out the fluting seeding to soil when the seeding, promote the height of seeder furrow opener under the walking state of non-seeding, make furrow opener and soil break away from the contact, the compaction wheel plays the effect of walking wheel this moment, thereby realizes the switching of seeding and walking state. The invention can realize the integrated seeding of various seeds and different seed spacing adjustment, the switching of the walking and seeding states of the seeder is simple and convenient, and the seeding of different seeds can be switched quickly; the multi-channel synchronous seeding and soil compacting device can realize multi-channel synchronous seeding and soil compacting, ensures that only one seed is in each seed position, has simple, convenient and reliable power clutch, and can realize accurate positioning of the material storing and distributing module.

Description

Multifunctional seeder

Technical Field

The invention relates to a seeding machine, in particular to an integrated seeding machine which is simple and convenient to switch between walking and seeding states and can realize adjustment of various seeds and different seed distances.

Background

The seeding machine is used for seeding seeds, the control of the seeding seed distance, the quantity and the model of the seeds is generally not considered when the current commonly used seeding machine is used for seeding, only the number of the seeds in a unit area is considered, and the seeding machine is generally used for large-scale production. Seed planting for small-scale or experimental research generally takes into account the influence laws of different seed distances, the number of seeds in each location and different types of seeds on growth rate, effectiveness and yield. Aiming at the seeding requirements, the method adopted by the equipment on the market at present for realizing the purpose is simple and low in efficiency, and the technical parameters cannot be effectively and quickly realized.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a multifunctional seeder. The multifunctional seeder can realize the integrated seeding of various seeds and different seed spacing adjustment, the switching of the walking and seeding states of the seeder is simple and convenient, and the seeding of different seeds can be switched quickly; the multi-channel synchronous seeding and soil compacting device can realize multi-channel synchronous seeding and soil compacting, ensures that only one seed is in each seed position, has simple, convenient and reliable power clutch, and can realize accurate positioning of the material storing and distributing module.

In order to achieve the purpose, the invention provides the following technical scheme:

a multifunctional seeder comprises a frame assembly, a compaction and walking system, a material storage and distribution system and a transmission system; wherein the content of the first and second substances,

the machine frame assembly comprises a base frame, a storage and distribution bracket and a furrow opener, wherein the base frame is used as an installation base of other systems and components, the storage and distribution bracket is fixedly arranged on the base frame, and the furrow opener is fixedly arranged on the rear side of the base frame, is of a hollow structure and is used for ditching soil and accommodating seeds in the walking process of the seeder;

the compaction and walking system comprises a compaction walking frame, an upper connecting rod, a lower connecting rod, a sliding block, compaction walking wheels, an upper half connecting rod, a lower half connecting rod and a pull rope, wherein the compaction walking frame is arranged at the lower end of the rear side of a basic frame through a pin shaft and a limiting plate, one end of the upper connecting rod is connected with the upper end of the rear side of the basic frame through a pin shaft, one end of the lower connecting rod is arranged on the compaction walking frame through a pin shaft and a limiting plate, a wheel shaft is arranged at the end part of the compaction walking frame, a plurality of compaction walking wheels are arranged on the wheel shaft, the compaction walking wheels are aligned with the positions of a furrow opener, the upper half connecting rod and the lower half connecting rod are respectively arranged at the lower end of the rear side of the basic frame through limiting plates, one end of the sliding rod, the other end of the upper connecting rod and the other end of the lower connecting rod are assembled together through, the sliding block is fixedly connected with the upper half connecting rod and the lower half connecting rod and can slide along the sliding rod, a first pressure spring is assembled between the baffle and the lower half connecting plate, and the other end of the pull rope penetrates through the lower half connecting plate and is connected to an external control handle;

the storing and distributing system is communicated with the furrow opener, a plurality of storing and discharging modules for storing different types of seeds are integrated through a rotatable bottom plate arranged on the storing and distributing bracket, and the seeds are selected and adjusted through selecting different storing and discharging modules;

the transmission system comprises a walking wheel and a transmission device, the walking wheel is mounted on the basic frame through a wheel shaft and rotates along with the advancing of the seeder, the transmission device drives the material storage and distribution module in the material distribution system to rotate, and seeding is carried out according to a preset seed distance.

Furthermore, one end of the transmission device is connected with a wheel shaft of the travelling wheel, the other end of the transmission device is in transmission connection with a rotatable first transmission shaft, and an internal spline is arranged at the upper end of the first transmission shaft.

Further, transmission includes first order drive wheelset, first order driven wheelset, second order drive wheel, the second level is from the driving wheel, third order drive wheelset, third order driven wheelset, fourth drive bevel gear for gear chain transmission, walking wheel drive first order drive wheelset, through the first order driven wheelset of chain drive, then through driving second order drive wheel, it is rotatory to make the second level follow the driving wheel through chain transmission, and then drive third order drive wheelset, then through the third order driven wheelset of chain drive, and then drive terminal fourth drive bevel gear and rotate, through bevel gear meshing driven mode with first transmission shaft links to each other.

Further, driven wheelset fixed mounting of third level is in the one end of second transmission shaft, the initiative power dish is installed to the other end of second transmission shaft, install the first bulb round pin that a plurality of is used for transmitting power on the initiative power dish, the second transmission shaft links to each other with the one end of third transmission shaft, the level four drives bevel gear and installs in the other end of third transmission shaft, driven power dish fixed mounting is on the slide, the slide is established ties with middle power dish through the transmission pin pole, middle power dish fixed mounting is on the third transmission shaft, be provided with the second pressure spring between middle power dish and the slide, the driving lever passes through round pin axle and bolt and installs on the frame assembly, install the spacing seat that is used for restricting the extreme position of driving lever on the driving lever, the second bulb round pin is installed to one side that the driving lever is.

Furthermore, a plurality of material storage discharging modules are arranged on the bottom plate of the material storage and distribution system along the circumferential direction, the lower end of the bottom plate is fixedly connected with a rotating sleeve, the rotating sleeve is rotatably connected with a material storage and distribution support, the material storage discharging modules comprise a material storage disc, a fixed seat, a material distribution rotary disc and a driving shaft, the bottom of the material storage disc is fixed on the fixed seat, a baffle and a pressing plate are arranged on the driving shaft through positioning pins, a driving key is arranged between the baffle and the pressing plate, an external spline is arranged at the lower end of the driving shaft, a lifting lug is arranged at the upper end of the driving shaft, a limiting through hole and a rotary table step surface are arranged in the middle of the material distribution rotary disc, a plurality of seed grain through holes are arranged along the circumferential direction at the edge of the material storage disc, the driving shaft sequentially penetrates through the limiting through hole, the fixed seat and the bottom plate, an upper supporting surface is arranged on the fixed seat, and a spring is arranged between the baffle and the upper supporting surface; in a working state, the pressing plate is matched in the limiting through hole, the external spline is meshed in the internal spline of a first transmission shaft in the transmission device, and the first transmission shaft can drive the material distribution turntable to rotate through the driving shaft; when the seeds in the storage discharging module at the current position are sown or need to be switched to other storage distributing modules, the driving shaft is separated from the meshing relation with the first driving shaft by lifting the lifting lug, the bottom plate can rotate, and the lower surface of the driving key of the driving shaft is attached to the rotating step surface by rotating and putting down the lifting lug.

Furthermore, the middle position of the material distribution turntable is in a conical shape.

Further, the outer end of fixing base is rotatably connected with the outside of base, the inner of fixing base is provided with the rotatory hold-down mechanism that is used for fixing the storage ejection of compact module of current position on the base, and when needs switch storage ejection of compact module, through relieving rotatory hold-down mechanism's the state of pressure and making storage ejection of compact module can rotate around the articulated shaft of its outer end.

Furthermore, the upper surface of the fixed seat is provided with an auxiliary positioning hole, a fixed ball socket is arranged at a position on the base corresponding to the auxiliary positioning hole, a steel ball, a spring and a set screw are sequentially installed in the auxiliary positioning hole, and a part of the steel ball is matched with the fixed ball socket of the bottom plate at the outer side of the fixed seat.

Further, the bottom of storage tray is provided with a plurality of swager along circumference, swager includes a material rest, spring, carriage and runner, the runner is installed in the pivot of carriage, and the carriage can be at the inside longitudinal sliding of material rest, and the spring sets up between carriage and liftout frame for the pressure of control gyro wheel to kind of grain.

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

(1) the multifunctional seeding machine integrates a rack assembly, a multi-indexing rotary type material storing and distributing module, a walking compaction device, a multi-stage multi-transmission ratio transmission system and a power clutch function, and realizes an integrated seeding function with different seed distances and different seed switching.

(2) The reverse connecting rod actuating mechanism of unique stay cord control has been designed for can realize that the seeder furrow opener can normally carry out the fluting seeding to soil when the seeding through controlling the stay cord, promote the height of seeder furrow opener under the walking state of non-seeding, make furrow opener and soil break away from the contact, the compaction wheel plays the effect of walking wheel this moment, thereby realizes the switching of seeding and walking state.

(3) The multi-graduation independent control material storage and distribution module is designed, and the rapid lifting and rotating mechanism is combined to realize the power separation of the tail end power output shaft and the input shaft, so that the material storage and distribution assembly is rotated to realize the rapid switching of different types of seeds.

(4) A material pressing mechanism arranged below the inner part of the material tray is designed, so that redundant seeds are limited to enter the same sowing position, and only one type of seeds are ensured to be arranged at the designated sowing position;

(5) the power clutch device of the shifting fork type ball head driving sliding block is designed, so that reliable clutch of transmission power is realized under the condition of not increasing extra size space;

(6) through the design of the steel ball-spring type auxiliary positioning device, the accurate positioning of the material distributing and storing module is realized by matching with the elbow clamp and the double positioning pins.

Drawings

Fig. 1 is a schematic view of the overall structure of the sowing machine;

FIG. 2 is a schematic view of a first perspective structure of the frame assembly;

FIG. 3 is a schematic view of a second perspective view of the frame assembly;

FIG. 4 is an exploded view of the frame assembly;

FIG. 5 is a view of the assembly of the tray holder;

FIG. 6 is an exploded view of the tray holder;

FIG. 7 is a schematic diagram of the storage and distribution system;

FIG. 8 is a top view of the magazine and distribution system;

FIG. 9 is a cross-sectional view of a magazine and distribution system;

FIG. 10 is an exploded view of the magazine and distribution system;

fig. 11 is a sectional view of the swaging mechanism;

fig. 12 is an exploded view of the swage mechanism;

FIG. 13 is a schematic view of the structure of a rotating tray;

FIG. 14 is a cross-sectional view of a rotating tray configuration;

FIG. 15 is a top view of the rotating tray structure;

FIG. 16 is a schematic view of the construction of the base plate in the stocker and dispensing system;

FIG. 17 is a schematic view of the general construction of the compaction and walking system;

FIG. 18 is an exploded view of the compaction and walking system;

FIG. 19 is a schematic structural diagram of the transmission system;

FIG. 20 is an exploded view of the transmission system;

FIG. 21 is a schematic end drive/clutch assembly construction of the transmission;

FIG. 22 is a top plan view of the end drive/clutch assembly of the drive train;

FIG. 23 is an exploded view of the end drive/clutch assembly of the transmission.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Seeder complete machine assembly

As shown in fig. 1, the whole seeder assembly mainly comprises four modules: 1) a frame assembly 170; 2) a compaction/walking system 171; 3) a storage/distribution system 172; 4) a transmission 173. Wherein the content of the first and second substances,

1) the rack assembly is used for providing a structure for mounting other subsystems, sowing and ditching as well as dragging a power source, and a furrow opener in the rack assembly is responsible for ditching soil and accommodating seeds in the walking process;

2) the compaction/walking system assembly is used for filling and compacting the soil of the seeds which are sowed in the groove and matching with the walking wheels to perform a walking function during the non-sowing period;

3) the multi-scale storage/distribution system assembly integrates various types of seeds, so that the seeds can be selected and adjusted according to the requirements during sowing;

4) the transmission system assembly transmits walking power to the material storing/distributing device, so that the rotary disc in the material storing disc can rotate and sow according to a certain seed distance.

The system has the following working flows:

1) adjusting the transmission ratio to a set seed pitch through a transmission system;

2) rotating the charging barrel with the designated type grain size in the multi-graduation storing/distributing system to a discharging position to be sowed;

3) the power head walks by dragging the seeder assembly;

4) in the walking process, the furrow opener 8 is used for slotting soil, and seeds fall into the furrow through the through holes of the furrow opener 8 in the second half of slotting (namely after slotting in the current position is finished), so that the seeds pass through the material storing/distributing system assembly and are matched with the transmission system assembly to sow the seeds according to the specified seed spacing;

5) after the seeding at the current position is finished, the seeder continues to move forward, and the sowed seeds are buried and compacted by the compaction/walking system;

6) after the seeding is finished, the compaction/walking wheels 34 move downwards relative to the ground through controlling the pull ropes 56 in the control diagram 17, so that the furrow opener 8 is separated from the ground, and meanwhile, the driving system is separated from the material distributing and storing device through controlling the shift lever 119 in the driving system, so that the seeder walks to a specified position on the road surface in a non-seeding state.

Second, frame assembly (as shown in fig. 2-6)

The tray support assembly 1 and the dragging support assembly 2 are arranged on a basic frame formed by welding rectangular pipes such as a front upper beam 18, a front lower beam 19, a right lower beam 20, a right upper beam 21, a left lower beam 22, a left upper beam 23, a rear upper beam 24, a rear lower beam 25, a rear upright post 26 and the like. The left bracket 3 of the driving wheel is welded on the left lower beam 22 and the left upper beam 23 for assembling the left wheel bearing seat 83 in fig. 14. The driving wheel right bracket 4 is welded to the right lower beam 20 and the right upper beam 21 for assembling the right wheel bearing housing 102 in fig. 19. The first stage tensioning bracket 5 is welded to the right lower beam 20 to assemble the torsion spring stop bar 105 and first stage tensioning axle 106 of figure 19. The first stage driven wheel right bracket 6 and the first stage driven wheel left bracket 7 are mounted on the right lower beam 20 and the right upper beam 21 by welding, and are used for mounting the bearing blocks 143 and 112 in fig. 20, respectively. The fixed bottom plate 13 is welded and fixed on the right lower beam 20 and the left lower beam 22, and the material storing and distributing bracket 12 is fixedly connected on the bottom plate 13 through bolts. The 4 walking compaction supports 14 are welded on the rear lower beam 25 and are respectively used for installing the compaction walking frame 33, the upper half connecting rod 52 and the lower half connecting rod 53 in the drawing of figure 17. 4 height adjusting plates 15 are welded and fixed on the rear upper beam 24 and the rear lower beam 25, and the furrow opener 8 is fixedly arranged on the height adjusting plates 15 through bolts and a furrow opener base 17. Wherein, the furrow opener 8 is used for ditching soil during walking so as to sow. The groove on the height adjusting plate 15 is used for adjusting the mounting height of the furrow opener, thereby adjusting the depth of the opened groove. Second stage tensioning bracket 27 is used to mount third stage tensioning axle 114 and torsion spring restraint 115 shown in fig. 20. The clutch right bracket 9 and the clutch left bracket 10 are used for mounting the bearing blocks 124 and 125 in fig. 20. The toggle lever bracket 11 is mounted on the rear upper beam 24, which is used to mount the toggle lever 119 in fig. 20. The 4 magazine attachments 28 are fixedly mounted by screws below the outfeed 163 of the upper plate 29 of the carrier in fig. 5 for the seeds to pass through the outfeed into the furrow opener 8 to fall into the soil trench.

It should be noted that the bottom sharp part of the furrow opener 8 is used for drilling, the inside of the furrow opener is provided with a through hole, the storage joint 28 is connected through a hose and is inserted into the through hole of the furrow opener 8, the seeds enter the storage joint 28 through the discharge hole of the support upper plate 29 and then enter the through hole of the furrow opener 8 through the hose, and therefore the function of the seeder for simultaneously ditching and seeding is realized.

The tray support assembly 1 is welded on the rear upper beam 24 and the rear lower beam 25, and mainly comprises a support upper plate 29, a support left plate 30, a support right plate 31, a support middle plate 32 and a bottom plate 160, wherein the support middle plate 32 is used for mounting a bearing seat 133 in the drawing 20.

Thirdly, storing/distributing system assembly (as shown in fig. 7-16)

The multi-graduation material storage and distribution system mainly comprises a material storage and discharge module, a base module and a pressing module. The sextant bottom plate 78 is fixed together with the rotating sleeve 77 through a positioning pin and a countersunk head bolt, the rotating sleeve 77 is assembled with the material storing and distributing bracket 12 in the figure 2 through clearance fit, and the sextant bottom plate 78 can be manually rotated to control the angle. The six-group toggle clamp 63 and the positioning pin 75 are mounted on the six-part bottom plate 78, the upper surface of the rotating seat 69 is assembled with the fixed seat 67 through a bolt, the pin hole of the rotating seat 69 assembles the fixed seat 67 with the six-part bottom plate 78 through the fixed ring 70 and the rotating shaft 76, and the fixed seat 67 has a degree of freedom of rotation about the rotating shaft 76. One end of the fixing seat 67 is provided with two waist-shaped grooves, and the positioning pin 75 is positioned in the waist-shaped grooves during design and clamped through the elbow clamp 63, so that the fixing seat 67 can be fixed on the six-minute bottom plate 78. The set screw 64, the spring 161 and the steel ball 66 are installed in an auxiliary positioning hole of the fixing seat 67, and a part of the steel ball is arranged on the outer side of the fixing seat and is matched with a positioning ball socket 164 of the six-part bottom plate 78 in fig. 10, so that the effect of auxiliary positioning is achieved.

The bottom of the storage disc 57 is screwed with the bottom of the fixed seat 67 through screws. The baffle 60 and the pressure plate 62 are fixed together with the driving shaft 59 through a positioning pin, and the lower end of the driving shaft 59 is provided with an external spline which is matched with an internal spline 169 of the transmission shaft 132 in fig. 21 for transmission. The lifting lug 58 is fixed to the upper end of the driving shaft 59 by means of a threaded connection. The lifting lug 58, the driving shaft 59, the baffle 60, the pressure plate 62, the spring 68 and the material distributing turntable 61 are assembled together, and the specific assembling relation is shown in FIG. 9. Understanding its internal assembly relationships from the workflow: in the working state, the lower plane of the pressure plate 62 is attached to the upper surface of the material separating turntable 61, the external splines of the driving shaft 59 are meshed with the internal splines of the driving shaft 132, the driving shaft 132 rotates to enable the driving shaft 59 to rotate, and the driving keys 166 on the driving shaft 59 drive the material separating turntable 61 to rotate. When the seeds in the material storage and distribution module at the current position are sown or need to be switched to other material storage and distribution modules, the lifting lug 58 is lifted, the driving shaft 59 is separated from the meshing relationship with the driving shaft 132, the external spline ground of the driving shaft 59 enters the hole of the six-minute bottom plate 78, then the lifting lug 58 is rotated for a certain angle, the lifting lug is lowered, the lower surface of the driving key of the driving shaft 59 is attached to the step surface 168 in fig. 13-15, and at the moment, the spring 68 is in the maximum compression state. At this time, the sixth-minute bottom plate 78 can be rotated to rotate the designated material storage and discharge module to the working position, the lifting lug 58 of the current working material storage position is still in the lifting state, the spring 68 is also in the maximum compression state, the lifting lug 58 is rotated in the reverse direction by a certain angle, so that the pressing plate 62 is re-fitted with the through groove 167 of the material distribution rotary disc 61 in fig. 13-15 under the action of the spring force of the driving shaft 59, and simultaneously the external spline at the bottom of the driving shaft 59 is re-engaged with the internal spline of the driving shaft 132, so that the power of the driving shaft 59 can start to drive the material distribution rotary disc in the material storage and distribution module.

It should be noted that there are a plurality of discharge ports on the material-distributing turntable 61, and the number of the discharge ports needs to be designed by matching with the transmission ratio of the transmission system, so as to obtain the seed distance set in the pre-design. Meanwhile, the middle position of the material distribution turntable 61 is designed to be conical, so that the seeds in the material tray can slide along the conical surface and enter the material discharge position, and the seeds in the material barrel can be all sown.

The rotary pressing mechanism (shown in fig. 10) mainly comprises a handle 71, a threaded rotating shaft 72 and a pressing strip 73, wherein a pin hole of the threaded rotating shaft 72 and a pin hole 162 (shown in fig. 5-6) of the tray bracket assembly are arranged together, and the upper part of the pin hole is provided with an external thread which is assembled with an internal thread of the handle 71. This rotatory hold-down mechanism is used for fixing the storage material distribution module of current position on charging tray support assembly 1 for whole many graduation storage material distribution system is fixed, can not rotate round storage material distribution support 12, and when needs switch material distribution storage module, rotatory handle 71 makes rotatory hold-down mechanism can rotate round the pinhole axle center of screw thread pivot 72, and then makes material distribution storage module break away from with charging tray support assembly 1's fixed.

In addition, when the seeds in the sub-storage material distribution module in the storage material distribution assembly need to be replaced or redundant seeds need to be removed, the elbow clamp 63 can be loosened, and the current material distribution module is turned over around the axis of the rotating shaft seat 69, so that the redundant seeds can be removed.

The retarding/pressing mechanism 65 is mounted by screws to the bottom side of the accumulator tray 67 as shown in fig. 11-12. Since one particle exists in the peripheral material hole of the material distribution turntable 61 all the time, the material blocking/pressing mechanism is mainly used to prevent the excessive particles from entering the material outlet, and only one particle is pressed into the material outlet in fig. 10 at a time, each material outlet needs to be provided with one material blocking/pressing mechanism, only one material ejecting assembly is shown in each material storage tray in fig. 8 and 10, and actually 4 particles can be installed.

The ejection assembly mainly comprises an ejection rack 79, a spring 80, a sliding rack 81 and a rotating wheel 82. The wheel 82 is mounted on the axis of rotation of a carriage 81, the carriage 81 being slidable within a range within the ejector rack 79, and a spring 80 being provided to control the pressure of the wheel 82 against the seeds. In addition, the outer diameter of the roller needs to match the size of the seed hole of the material distributing turntable 61.

Fourthly, compacting/walking system assembly (as shown in figures 17-18)

The compacting traveling frame 33 is mounted on the compacting traveling mechanism bracket 14 (four brackets 14 in total, and two outer brackets are mounted together) in fig. 3 and 4 by means of pins 45 and 37 and stopper plates 36 and 46, the upper link 40 is assembled with the link bracket 16 by means of a pin, and the lower link 35 is mounted on the compacting traveling frame 33 by means of a pin 43 and a stopper plate 44. The wheel shaft 39 is mounted on the compacting traveling frame 33 via a left fixing ring 41 and a right fixing ring 42. The compaction walking wheels 34 are respectively and uniformly distributed and limited on the wheel shafts 39 and are aligned with the positions of the ditchers 8 on the rack assembly, so that after the ditches and the seeds are sowed on the soil by the ditchers 8, the compaction walking wheels 34 can compact the sowed soil.

The upper half connecting rod 52 and the lower half connecting rod 53 are respectively installed on a compaction walking bracket 14 (two in the middle) in the rack assembly through limiting plates 47 and 48, the sliding block 51, the upper half connecting rod 52 and the lower half connecting rod 53 are fixedly installed together through bolts and limiting plates 49, the sliding block can slide along the sliding rod 38, in addition, one end of the sliding rod 38, the lower connecting rod 35 and the upper connecting rod 40 are assembled together through a pin shaft 50, the other end face of the sliding rod 38 assembles a baffle plate 55 together through a bolt, and a pressure spring 54 is assembled between the baffle plate 55 and the lower half connecting plate 53. One end of a pull cord 56 is fixedly mounted in a hole in the pin 50 and passes through the lower link plate 53 to be connected to an external control handle.

The working principle is as follows:

1) when the seeder is in a seeding working condition, the pull rope 56 is in a loose state by controlling the external handle, and at the moment, the pressure spring 54 is in a maximum compression state due to the self weight of the seeder, so that the furrow opener 8 is also in a ditching position;

2) when the seeding is accomplished, when not needing to ditching, through outside control handle for stay cord 56 begins to drag, and the reduction of the compression volume of pressure spring 54 breaks away from even with the contact of half lower company board, thereby makes the high beginning of furrow opener 8 promote, breaks away from soil ground, and from making the seeder utilize the walking of compaction walking wheel to shift to other work positions of treating.

Fifth, the transmission system assembly (as shown in fig. 19-23)

As can be seen from fig. 19 and 20, the transmission route of the transmission system is:

the traction wheels 84 drive a first stage drive wheel set 85, through a chain and tensioning device, which in turn drives a first stage driven wheel set. Then, by driving the second stage driving pulley 89, the second stage driven pulley 90 is rotated by the chain transmission to drive the third stage driving pulley group 91, and then the third stage driven pulley group 84 is driven by the chain transmission and the tension device. And then under the control of the clutch device, the tail end bevel gear is driven to transmit, so that the transmission shaft 132 is driven to rotate, and finally the material distribution rotary disc 61 is driven to distribute materials in a rotating mode through spline connection.

The left wheel bearing seat 83 and the right wheel bearing seat 102 are arranged on a wheel shaft 104 and are fixedly arranged on the left bracket 3 and the right bracket 4 of the driving wheel in the frame assembly through bolts. The road wheels 84 are mounted on axles 104. One end of the wheel shaft 104 is provided with a first-stage driving wheel set 85 composed of three different chain wheels through a fixing ring 103, and the position of the first-stage driving wheel set is limited through the fixing ring. The torsion spring limiting rod 105 and the first-stage tensioning wheel shaft 106 are installed on a first-stage tensioning support 5 in the rack assembly, the first-stage left tensioning wheel 86 and the first-stage right tensioning wheel 87 are installed at two ends of a first-stage tensioning rod 136 through

rotating shafts

108 and 109, shaft clamps 134 and 135 and a bolt 107, and in addition, mounting holes which are uniformly distributed and arranged are formed in the tensioning rod 136 and can be used for adjusting the positions of the tensioning wheels, so that the tensioning effect is adjusted. One end of the torsion spring is clamped on the torsion spring limiting rod 105, and the other end of the torsion spring is clamped on the first-stage tension rod 136, so that the tension effect on the transmission chain A can be achieved.

The bearing seats 112 and 143 and the transmission shaft 144 are installed below the first-stage driven wheel right bracket 6 and the left bracket 7 in the frame assembly, the first-stage driven wheel group 88 is installed at one end of the second-stage transmission shaft 110 through the fixing ring 111 and the key, and the second-stage driving wheel 89 is fixedly installed at the other end of the transmission shaft 110 through the fixing rings 142 and 113.

Bearing blocks 97 and 99 are mounted at the upper ends of the right bracket 6 and the left bracket 7 of the driven wheel of the frame assembly through bolts, a third-stage transmission shaft 98 is mounted in the bearing blocks 97 and 99, in addition, a third-stage driving wheel set 91 is fixed at one end of the transmission shaft 98 through fixing rings 101 and 138 and a key 137, and a second-stage driven wheel 90 is mounted at the other end of the transmission shaft through a fixing ring 100.

Third stage tensioning axle 114 and torsion spring restraint bar 115 are mounted to second stage tensioning mount 27 in the frame assembly. Similarly, third stage left tensioner 92 and right tensioner 93 are mounted to third stage tensioner lever 141 by pivot shafts 116 and 117 and shaft clips 139 and 140, and third stage tensioner lever 141 is mounted to third stage tensioner axle 114 by pin connection and latch 118. One end of the torsion spring is clamped on the torsion spring limiting rod 115, and the other end of the torsion spring is clamped on the third-stage tension rod 41, so that the tension effect on the transmission chain C can be achieved.

Bearing blocks 124 and 125 are installed on a clutch right bracket 9 and a clutch left bracket 10 in a rack assembly, a third-stage driven wheel set 94 is fixedly installed at the left end of a transmission shaft 123 through fixing

rings

145 and 146, a key 147 is arranged on the transmission shaft 123, a driving power disc 128 is fixedly installed at the other end of the transmission shaft 124, and meanwhile, 4 ball pins are installed on the driving power disc 128 to transmit power. The bearing seat 130 is fixedly arranged on the right plate of the support of the tray bracket assembly 1, the fourth stage driving bevel gear 95 is arranged at the right end of the transmission shaft 154 through a key 152, the transmission shaft 154 is limited in the axial position through shaft clamps 158 and 159, and in addition, the adjusting ring 157 is used for adjusting and controlling the position of the fourth stage driving bevel gear 95.

The driven power disc 127 is fixedly arranged on a sliding seat 155 through a bolt, the sliding seat 155 is connected with an intermediate power disc 129 in series through a transmission pin 128, the intermediate power disc 129 is fixedly arranged on a transmission shaft 154, a pressure spring (not shown) is arranged between the sliding seat 155 and the intermediate power disc 129, the sliding seat 155 and the driven power disc 127 can move rightwards under the action of a shifting fork 119, and after the shifting fork 119 returns to the original state, the sliding seat 155 and the driven power disc 127 return to the original position under the action of the pressure spring. The hole clamp 151 and the bearing 131 are fixedly installed on the holder upper plate 29 of the bracket assembly 1. The bearing block 133 is mounted on a middle plate of a bracket in the bracket assembly 1, the shaft clamps 149 and 153 are used for limiting the position of the transmission shaft 132, and the fourth stage driven wheel 96 is mounted on the transmission shaft 132 through a key.

The deflector rod 119 is mounted on the deflector rod bracket 11 in the frame assembly through a pin shaft 121 and a bolt 122, and the limiting seat 120 is mounted on the deflector rod 119 through a countersunk head bolt for limiting the limit position of the deflector rod 119. Two ball studs 148 are mounted to the end of the toggle 119 adjacent the driven power disc 127.

The end power transmission route is as follows:

1) when in a normal transmission state, the third driven wheel set 94 transmits power to the driving power disc 126, then drives the driven power disc 127 through the ball stud 156 mounted on the driving power disc 126, and then drives the transmission stud 128, and then drives the intermediate power disc 129, and finally transmits power to the transmission shaft 154, and then transmits power to the bevel gear set.

When power is required to be cut off, the shifting fork 119 is driven by an external control rod, and the driven power disc 127, the sliding seat 155 and the transmission pin rod 128 are pushed to slide rightwards (shown in fig. 22) through the ball stud 148, so that the transmission pin rod 128 slides relatively in the hole of the middle power disc 129, and the ball stud 156 is separated from the driven power disc 127, and power separation is realized.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A multifunctional seeder is characterized by comprising a rack assembly, a compaction and walking system, a material storage and distribution system and a transmission system; wherein the content of the first and second substances,

2. The multifunctional seeding machine according to claim 1, wherein one end of the transmission device is connected with the wheel shaft of the walking wheel, the other end of the transmission device is connected with a first rotatable transmission shaft in a transmission mode, and the upper end of the first transmission shaft is provided with an internal spline.

3. The multifunctional seeding machine according to claim 2, wherein the transmission device is a gear chain transmission device and comprises a first-stage driving wheel set, a first-stage driven wheel set, a second-stage driving wheel, a second-stage driven wheel, a third-stage driving wheel set, a third-stage driven wheel set and a fourth-stage driving bevel gear, the traveling wheel drives the first-stage driving wheel set, the first-stage driven wheel set is driven by the chain, the second-stage driven wheel is rotated by driving the second-stage driving wheel through chain transmission, the third-stage driving wheel set is driven, the third-stage driven wheel set is driven by the chain, the fourth-stage driving bevel gear at the tail end is driven to rotate, and the fourth-stage driving bevel gear is connected with the first transmission shaft in a bevel.

4. The multifunctional seeding machine according to claim 3, wherein the third driven wheel group is fixedly arranged at one end of the second transmission shaft, the other end of the second transmission shaft is provided with a driving power disc, the driving power disc is provided with a plurality of first ball pins for transmitting power, the second transmission shaft is connected with one end of the third transmission shaft, the four-stage driving bevel gear is arranged at the other end of the third transmission shaft, the driven power disc is fixedly arranged on a sliding seat, the sliding seat is connected with the middle power disc in series through a transmission pin rod, the middle power disc is fixedly arranged on the third transmission shaft, a second pressure spring is arranged between the middle power disc and the sliding seat, the shifting rod is arranged on the frame assembly through a pin shaft and a bolt, the shifting rod is provided with a limiting seat for limiting the limiting position of the shifting rod, and one side of the shifting rod, which is close to the driven power disc.

5. The multifunctional seeding machine according to claim 2, characterized in that a plurality of material storing and discharging modules are arranged on the bottom plate of the material storing and distributing system along the circumferential direction, the lower end of the bottom plate is fixedly connected with a rotating sleeve, the rotating sleeve is rotatably connected with a material storing and distributing bracket, the material storing and discharging modules comprise a material storing disc, a fixed seat, a material distributing rotary disc and a driving shaft, the bottom of the material storing disc is fixed on the fixed seat, a baffle and a pressing plate are arranged on the driving shaft through positioning pins, a driving key is arranged between the baffle and the pressing plate, an external spline is arranged at the lower end of the driving shaft, a lifting lug is arranged at the upper end of the driving shaft, a limiting through hole and a rotary stepped surface are arranged in the middle of the material distributing rotary disc, a plurality of seed passing holes are arranged along the circumferential direction on the fixed, the discharge port is communicated with the furrow opener, the driving shaft sequentially passes through the limiting through hole, the fixed seat and the bottom plate, the fixed seat is provided with an upper supporting surface, and a spring is arranged between the baffle and the upper supporting surface; in a working state, the pressing plate is matched in the limiting through hole, the external spline is meshed in the internal spline of a first transmission shaft in the transmission device, and the first transmission shaft can drive the material distribution turntable to rotate through the driving shaft; when the seeds in the storage discharging module at the current position are sown or need to be switched to other storage distributing modules, the driving shaft is separated from the meshing relation with the first driving shaft by lifting the lifting lug, the bottom plate can rotate, and the lower surface of the driving key of the driving shaft is attached to the rotating step surface by rotating and putting down the lifting lug.

6. The multifunctional seeding machine according to claim 5, wherein the middle position of the material-distributing turntable is conical.

7. The multifunctional seeding machine according to claim 5, characterized in that the outer end of the fixed seat is rotatably connected with the outer side of the base, the inner end of the fixed seat is provided with a rotary hold-down mechanism for fixing the material storage discharging module at the current position on the base, and when the material storage discharging module needs to be switched, the material storage discharging module can rotate around the hinge shaft at the outer end of the material storage discharging module by releasing the hold-down state of the rotary hold-down mechanism.

8. The multifunctional seeding machine according to claim 7, wherein the upper surface of the fixed seat is provided with an auxiliary positioning hole, the base is provided with a fixing ball socket at a position corresponding to the auxiliary positioning hole, the steel ball, the spring and the set screw are sequentially installed in the auxiliary positioning hole, wherein a part of the steel ball is matched with the fixing ball socket of the bottom plate at the outer side of the fixed seat.

9. The multifunctional seeding machine according to claim 5, wherein the bottom of the storage tray is circumferentially provided with a plurality of pressing mechanisms, each pressing mechanism comprises a material ejecting frame, a spring, a sliding frame and a rotating wheel, the rotating wheel is installed on a rotating shaft of the sliding frame, the sliding frame can longitudinally slide in the inner part of the material ejecting frame, and the spring is arranged between the sliding frame and the material ejecting frame and used for controlling the pressure of the roller on the seeds.