CN214508032U

CN214508032U - Ear picking device of corn harvester

Info

Publication number: CN214508032U
Application number: CN202120423140.5U
Authority: CN
Inventors: 刘立波; 张春辉; 司通
Original assignee: Shandong Jianghua Machinery Manufacturing Co ltd
Current assignee: Shandong Jianghua Machinery Manufacturing Co ltd
Priority date: 2021-02-26
Filing date: 2021-02-26
Publication date: 2021-10-29
Anticipated expiration: 2031-02-26

Abstract

The utility model relates to the field of agricultural machinery, in particular to a corn ear picking device of a corn harvester, which comprises a transmission gear box and an ear picking mechanism, the transmission gear box is used for driving the ear picking mechanism to operate, the ear picking mechanism comprises two ear picking assemblies which are arranged in parallel at intervals, each ear picking assembly is sequentially provided with a conical feeding section, a pair roller material guiding section and a pair roller material pulling section from front to back, the two conical feeding sections are used for matching and guiding corn straws, the double-roller material guiding section is used for being matched with the corn straw entering the corn harvester to realize continuous material guiding and pull-down, the double-roller material pulling section pulls down the corn straw and then matches with the straw cutting flail knife on the corn harvester body to cut off the corn straw below the two ear picking assemblies, and the corn harvesting function of corn in different areas and different maturity can be realized by adopting a front-spiral rear ear picking plate type structure.

Description

Ear picking device of corn harvester

Technical Field

The utility model belongs to the technical field of agricultural machine and specifically relates to a corn harvester plucks ear of grain device.

Background

The corn harvester is a harvesting machine which is widely applied in the field of agricultural machinery at present. The ear picking devices adopted by the corn harvester in the current market are mainly divided into two types, one type is for early-harvest corn varieties in plain areas, the other type is for late-harvest corn varieties in northeast and northwest areas, and because the maturity of corn harvesting in different areas is different, the adopted corn ear picking devices are different, the cross-region operation range of the corn harvester is greatly limited, the harvesting range of the corn harvester is reduced, and the mechanization of the corn harvester cannot be exerted to the maximum degree.

At present, several corn ear picking devices exist, one is a plate-type ear picking mechanism used in northeast and northwest areas, and the defects are that the amount of residual straws in the whole machine is too much during harvesting, so that a conveying groove of the whole machine is caused, the working pressure of a peeling machine is higher, the corn ear picking mechanism is easy to block, only late-harvest varieties can be harvested, and the corn ear picking mechanism can be used for harvesting early-harvest green straws, so that the working pressure of the whole machine is high, and the blockage can not work normally.

Another ear picking mechanism for early harvesting of corn in plain areas has the defects that at the late mature period of corn, the corn ears are easy to knock off and damage during harvesting, and when late harvesting is performed or harvesting is performed in northeast and northwest areas, the damage of the complete machine to the corn ears is serious, so that the corn grains in the field are seriously lost, the damage rate of the corn ears is high, and the harvesting effect is greatly reduced.

The mechanism is specially developed aiming at the characteristics that the ear picking mechanisms on the current market are more in impurities and damage the corn ears in the later period.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve one of the above-mentioned technical problem, this kind of structure of special development to realize that same kind of scion structure is applicable to different regional operations, improve maize picker's operation scope, reduce the input cost of agricultural machinery hand, the technical scheme who adopts is: the utility model provides a corn harvester plucks ear of grain device, includes drive gear box, plucks ear of grain mechanism, pulls out the standing grain case, drive gear box is used for realizing the drive pluck ear of grain mechanism operation, drive gear box is used for realizing the drive and pulls out standing grain case operation, pluck ear of grain mechanism and include two ear of grain subassemblies that set up to parallel interval relatively, each ear of grain subassembly is by preceding backward all set gradually toper feeding section, pair roller guide section, pair roller down pull-down section, two toper feeding section is used for the cooperation to realize the leading-in to corn stalk, pair roller guide section is used for the cooperation to realize continuing guide and drop-down to the corn stalk that gets into, two pair roller down pull-down section will drop down after the straw and cooperate the straw cutting flail knife on the corn harvester body to realize cutting the corn stalk below two ear of grain subassemblies.

In any of the above schemes, preferably, the snapping assembly includes a snapping roll driving shaft, the snapping roll driving shaft is connected with and matched with a gear shaft inside the transmission gear box and runs along with the gear shaft, a bearing assembly is sleeved and matched on the outer side wall of the snapping tube of the working end step section of the snapping roll driving shaft, the bearing assembly is fixedly mounted through a long support screw, the front end of the snapping tube penetrates through the bearing assembly and is connected with the tapered feeding section, and the long support screw is fixedly arranged relative to the corn harvester body.

In any of the above schemes, preferably, the bearing assembly includes a bearing seat fixedly installed at the end of the long support screw, a deep groove ball bearing sleeved on the outer side wall of the snapping tube is installed in the bearing seat, the front end of the deep groove ball bearing abuts against the inner wall of an installation cavity of the bearing seat, a one-way thrust ball bearing is sleeved on the outer side wall of the snapping tube behind the deep groove ball bearing, the rear end of the one-way thrust ball bearing abuts against the shoulder end face of the step section of the snapping roll driving shaft, and a spacer sleeve is sleeved on the outer side wall of the snapping tube between the one-way thrust ball bearing and the deep groove ball bearing.

In any of the above schemes, preferably, the tapered feeding section includes a leading-in cone sleeved at the front end of the ear picking tube, the leading-in cone is fixedly connected with the ear picking tube in a matching manner through an elastic cylindrical pin, and the outer diameter of the leading-in cone is sequentially increased from front to back.

In any of the above embodiments, preferably, a material guiding strip is fixedly and spirally wound on an outer side wall of each of the guiding cones.

In any of the above schemes, preferably, the outer side wall of the ear picking roller driving shaft at the rear side of the bearing assembly is fixedly sleeved with a coaxially arranged ear picking roller, a rear wire rod is spirally and fixedly wound on the outer side wall of the front section of the ear picking roller, and the front section of the ear picking roller is the pair-roller material guiding section.

In any of the above schemes, preferably, a plurality of steel strip ear picking plates are uniformly and fixedly arranged on the outer side wall of the rear section of the ear picking roller along the circumference thereof, and the rear section of the ear picking roller is the pair-roller downward pulling section.

In any of the above solutions, preferably, the space between the fitted steel strip ear plates on the ear rollers in the counter-rotating state of the two ear picking assemblies is used for corn stalks to pass through and clamp.

In any of the above embodiments, preferably, a rear end of the rear wire rod is connected to a front end of the steel-rod ear-picking plate at a corresponding position.

In any of the above embodiments, preferably, the working edge of each steel strip ear picking plate is sequentially provided with a tooth-shaped structure at intervals along the length direction thereof.

In any of the above schemes, preferably, a deformed steel bar is fixedly installed on the outer side wall of the snapping roll corresponding to the thread pitch position of the threaded rear wire rod, and the outer diameter of the deformed steel bar is smaller than the thickness of the rear wire rod.

According to the utility model discloses a corn harvester plucks ear of grain device adopts and plucks the plate-type structure of ear of grain behind the preceding spiral, can realize different regions, the function that the maize of different maturity was reaped.

According to the utility model discloses a corn harvester plucks ear of grain device when reducing miscellaneous operating pressure on the complete machine working part, has avoided the damage to the corn ear, can realize the different regions of same corn harvester, and the maize of different maturity is reaped wantonly, has improved corn harvester's utilization ratio greatly, has improved user's machine use value.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or components are generally identified by like reference numerals. In the drawings, elements or components are not necessarily drawn to scale.

Fig. 1 is a schematic view of the structure of the present invention.

Fig. 2 is a schematic top view of the present invention.

Fig. 3 is a schematic side view of the present invention.

Fig. 4 is a schematic structural view of the ear picking assembly of the present invention.

Fig. 5 is a partially enlarged schematic view of a portion I in fig. 4.

Fig. 6 is a side view of the structure of fig. 4.

Fig. 7 is a schematic view of the top view structure of the snapping roll driving shaft of the present invention.

Fig. 8 is a schematic sectional view along direction D-D of fig. 7.

Fig. 9 is a schematic sectional view along direction E-E of fig. 7.

Fig. 10 is a schematic view of the local structure of the snapping roll driving shaft of the present invention.

In the figure, 1, a transmission gear box; 2. ear picking components; 201. a snapping roll driving shaft; 202. picking up the ear of grain pipe; 203. a long support screw; 204. a bearing seat; 205. a deep groove ball bearing; 206. a one-way thrust ball bearing; 207. a spacer sleeve; 208. leading in a cone; 209. an elastic cylindrical pin; 210. a material guiding strip; 211. snapping a roll; 212. a rear wire rod; 213. picking spike plates by steel bars; 214. a tooth-shaped structure; 215. deformed steel bar; 3. a grain pulling box; 4. a conical feed section; 5. a pair of roller material guiding sections; 6. pulling the material sections by the pair of rollers.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

As shown in figures 1-10, a corn harvester ear picking device comprises a transmission gear box 1, an ear picking mechanism and a grain pulling box 3, the transmission gear box 1 is used for driving the ear picking mechanism to operate, the transmission gear box 1 is used for driving the seedling pulling box 3 to operate, the ear picking mechanism comprises two ear picking components 2 which are arranged in parallel at intervals, each ear picking component 2 is sequentially provided with a conical feeding section 4, a pair roller feeding section 5 and a pair roller feeding section 6 from front to back, the two conical feeding sections 4 are used for matching to guide in the corn straws, the double-roller material guiding section 5 is used for matching with the corn straw to realize continuous material guiding and pull-down of the corn straw, and the double-roller material pulling section 6 pulls down the corn straw and then matches with the straw cutting flail knife on the corn harvester body to realize cutting off the corn straw below the two ear picking assemblies 2.

The 1 structure of transmission gear case in this application can directly adopt the gear case structure on the current maize picker, directly utilize prior art's gear case can.

Of course, the transmission gear case 1 of this application also can directly adopt the utility model patent technical scheme who is the name of this company application for "a straw dissection maize header gear case" structure among the cooperation this device pluck ear of grain subassembly 2 and use.

When two ear of grain subassemblies 2 are plucked in this application setting carry out the relative operation, can be through toper feeding section 4, pair roller guide section 5 with the backward guide of maize straw, this device during operation need cooperate the maize ear of grain stock guide that is located this device top and the straw that is located this device below on the whole maize picker to cut the flail sword and realize together simultaneously.

The main effect of this device is that can lead to the maize straw and cooperate the maize straw that has the corncob at the top to realize pulling down under the pair roller down pull section 6 realization, and the corncob on upper portion can be compelled to break away from the cornstalk at the in-process that the cornstalk was pulled down, simultaneously because the space that sets up between two ear of grain subassemblies 2 makes the unable downstream of corncob, will make the corncob by the separation, finally by the transport mechanism output on the maize picker, realize plucking the ear.

In addition, the corn straws pulled downwards can be continuously cut off and cut by a flail knife on the corn harvester, so that the straws can be quickly treated.

In any of the above schemes, preferably, the snapping assembly 2 includes a snapping roll driving shaft 201, the snapping roll driving shaft 201 is connected and matched with a gear shaft inside the transmission gear box 1 and runs along with the gear shaft, a bearing assembly is mounted on the outer side wall of the snapping pipe 202 of the working end step section of the snapping roll driving shaft 201 in a sleeved and matched manner, the bearing assembly is fixedly mounted through a long support screw 203, the front end of the snapping pipe 202 passes through the bearing assembly and then is connected with the tapered feeding section 4, and the long support screw 203 is relatively and fixedly arranged with the corn harvester body.

When the transmission gear box 1 runs, the driving is realized through the driving wheel connected with the outside of the transmission gear box 1 and the inside of the transmission gear box 1, and finally the output end of the transmission gear box 1 is connected with the two corresponding snapping roll driving shafts 201, so that the relative running of the two snapping roll driving shafts 201 is realized, and the bearing assembly can play a role in supporting and guiding.

In any of the above schemes, preferably, the bearing assembly includes a bearing seat 204 fixedly installed at an end of the long support screw 203, a deep groove ball bearing 205 sleeved on an outer side wall of the snapping pipe 202 is installed in the bearing seat 204, a front end of the deep groove ball bearing 205 abuts against an inner wall of an installation cavity of the bearing seat 204, a one-way thrust ball bearing 206 is sleeved on an outer side wall of the snapping pipe 202 behind the deep groove ball bearing 205, a rear end of the one-way thrust ball bearing 206 abuts against an end surface of a stepped shaft shoulder of the snapping roller driving shaft 201, and a spacer 207 is sleeved on an outer side wall of the snapping pipe 202 between the one-way thrust ball bearing 206 and the deep groove ball bearing 205.

The deep groove ball bearing 205 and the one-way thrust ball bearing 206 can better adapt to the coaxiality and the stability of the snapping roll driving shaft 201 in the running state.

In any of the above schemes, preferably, the tapered feeding section 4 includes a leading-in cone 208 sleeved at the front end of the snapping pipe 202, the leading-in cone 208 is fixedly connected with the snapping pipe 202 by a resilient cylindrical pin 209, and the outer diameter of the leading-in cone 208 increases from front to back.

The adoption of the structure of the two guide cones 208 can ensure that the corn straws have sufficient entering space when entering, and simultaneously, the space can be rapidly clamped after being continuously reduced when the corn straws are guided inwards.

In any of the above embodiments, it is preferable that a material guiding strip 210 is fixedly and spirally wound on the outer side wall of each of the introduction cones 208.

The material guiding strip 210 can play a role in guiding by friction and pressing, and the guiding efficiency is improved.

In any of the above schemes, preferably, a snapping roll 211 coaxially arranged is fixedly sleeved on an outer side wall of the snapping roll driving shaft 201 at the rear side of the bearing assembly, a rear wire rod 212 is spirally and fixedly wound on an outer side wall of a front section of the snapping roll 211, and the front section of the snapping roll 211 is the pair of roll material guiding sections 5.

The two spiral back wire rods 212 can effectively ensure the stable guiding of the corn straws in the process of contrarotating along with the snapping roll driving shaft 201, play the roles of clamping and providing forward thrust and ensure the normal backward guiding operation of the corn straws; meanwhile, the design of the rear wire rod 212 can solve the problem that the straws are excessively extruded before arriving, and meanwhile, the stability control of the corn straw guiding is guaranteed.

Meanwhile, the corn harvester adopts a front-spiral rear-ear-picking plate type structure, so that the corn harvesting function in different areas and different maturity can be realized.

In any of the above schemes, preferably, a plurality of steel strip ear picking plates 213 are uniformly and fixedly arranged on the outer side wall of the rear section of the ear picking roller 211 along the circumference thereof, and the rear section of the ear picking roller 211 is the pair-roller downward pulling section 6; the space between the matched steel strip ear picking plates 213 on the ear picking rollers 211 in the contrarotating state of the two ear picking assemblies 2 is used for the corn straws to pass through and clamp.

The opposite strip stripping plates 213 can effectively achieve the effect of rapidly pulling down the corn stalks clamped therebetween in the process of following rotation.

In any of the above schemes, preferably, the rear end of the rear wire rod 212 is connected to the front section of the steel rod ear picking plate 213 at the corresponding position, so as to ensure the smoothness and continuity of guiding transmission.

In any of the above schemes, preferably, the working edge of each steel strip ear-picking plate 213 is sequentially provided with the tooth-shaped structures 214 at intervals along the length direction thereof, and the tooth-shaped structures 214 on the steel strip ear-picking plates 213 can better ensure the clamping and grasping force of the tooth-shaped structures 214 on the straw, improve the pull-down effect, and reduce the slipping problem.

In any of the above embodiments, preferably, a deformed steel bar 215 is fixedly mounted on the outer side wall of the snapping roll 211 corresponding to the thread pitch portion of the threaded rear wire rod 212, and the outer diameter of the deformed steel bar 215 is smaller than the thickness of the rear wire rod 212. The deformed steel bar 215 may serve to reinforce and stabilize the rear wire rod 212.

A grain pulling box 3 matched with the corn harvester to work is further installed on one side of the device in a matched mode, and the grain pulling box 3 is also connected with the transmission gear box 1 to achieve transmission.

This pluck ear of grain device can reach and reduce the stalk-loading rate when the results maize, furthest protection corncob when reducing the operating pressure of other mechanisms of complete machine, accomplishes to reap in-process furthest and reduces the damage to the corncob, plucks the anterior part of ear of grain device and adopts round steel screw mechanism, adopts the steel sheet staggered structure at the back, and anterior structure mainly plays the pull-down at the back and cooperates the effect that the maize picker body realized cutting off the straw to playing maize straw pull-down.

The working principle is as follows:

in the process of reaping the maize, the maize straw is in the middle feeding of two toper feeding sections 4 of snapping roll 211 front end of two snapping subassemblies 2, the back wire rod 212 of the helical structure on the pair roller guide section 5 through snapping roll 211 anterior segment pulls down the straw rapidly earlier, also can make maize straw move to the direction of transmission gear box 1 one side simultaneously, and then reach the position of the pair roller lower pulling section 6 billet ear picking plate 213, it continues to pull down maize straw through relative rotatory billet ear picking plate 213, the quick cutting off of maize straw realization of flail knife structure on the cooperation maize picker below it simultaneously, the maize ear that is located the upper portion is retrieved and is dragged the back and is plucked simultaneously, the configuration of the preceding spiral back billet of this application, can reach the in-process at the snapping, do not harm the maize ear.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification; to those skilled in the art, any alternative improvements or changes made to the embodiments of the present invention are all within the scope of the present invention.

The parts of the present invention not described in detail are the known techniques of those skilled in the art.

Claims

1. The utility model provides a corn harvester plucks ear of grain device, includes drive gear box, plucks ear of grain mechanism, drive gear box is used for realizing the drive pluck ear of grain mechanism operation, its characterized in that: the ear picking mechanism comprises two ear picking assemblies which are arranged in parallel at intervals, each ear picking assembly is sequentially provided with a conical feeding section, a pair roller material guiding section and a pair roller material pulling section from front to back, the two conical feeding sections are used for being matched to guide in corn straws, the pair roller material guiding section is used for being matched to realize continuous material guiding and pulling down of the entering corn straws, and the two pair roller material pulling sections pull down the corn straws and are matched with a straw cutting flail knife on a corn harvester body to cut the corn straws below the two ear picking assemblies.

2. The ear plucking device of a corn harvester as recited in claim 1, characterized in that: the ear picking assembly comprises an ear picking roller driving shaft, the ear picking roller driving shaft is connected with and matched with a gear shaft in the transmission gear box and runs along with the gear shaft, a bearing assembly is sleeved and matched on the outer side wall of the ear picking pipe of the working end stepped section of the ear picking roller driving shaft, the bearing assembly is fixedly installed through a long supporting screw rod, the front end of the ear picking pipe penetrates through the bearing assembly and then is connected with the conical feeding section, and the long supporting screw rod is relatively and fixedly arranged with the corn harvester body.

3. The ear plucking device of a corn harvester as recited in claim 2, characterized in that: the conical feeding section comprises a guide cone sleeved at the front end of the ear picking pipe, the guide cone is fixedly connected with the ear picking pipe in a matched mode through an elastic cylindrical pin, and the outer diameter of the guide cone is sequentially increased from front to back.

4. The ear plucking device of a corn harvester as recited in claim 3, characterized in that: and the outer side wall of each guide cone is fixedly and spirally wound with a material guide strip.

5. The ear plucking device of a corn harvester as recited in claim 4, characterized in that: the outer side wall of the ear picking roller driving shaft at the rear side of the bearing assembly is fixedly sleeved with a coaxially arranged ear picking roller, a rear wire rod is fixedly wound on the outer side wall of the front section of the ear picking roller in a spiral manner, and the front section of the ear picking roller is the pair-roller material guiding section.

6. The ear plucking device of a corn harvester as recited in claim 5, characterized in that: and a plurality of steel bar ear picking plates are uniformly and fixedly arranged on the outer side wall of the rear section of the ear picking roller along the circumference of the ear picking roller, and the rear section of the ear picking roller is a pair-roller downward pulling section.

7. The ear plucking device of a corn harvester as recited in claim 6, characterized in that: and the space between the matched steel bar ear picking plates on the ear picking rollers in the contra-rotating state of the two ear picking assemblies is used for corn straws to pass through and clamp the corn straws.

8. The ear plucking device of a corn harvester as recited in claim 7, characterized in that: the rear end of the rear wire rod is connected with the front section of the steel rod ear picking plate at the corresponding position.

9. The ear plucking device of a corn harvester as recited in claim 8, characterized in that: tooth-shaped structures are sequentially arranged at intervals along the length direction of the working edge of each steel bar ear picking plate.

10. The ear plucking device of a corn harvester as recited in claim 9, wherein: and the outer side wall of the snapping roll, corresponding to the thread pitch part of the rear wire rod in a thread shape, is fixedly provided with a deformed steel bar, and the outer diameter of the deformed steel bar is smaller than the thickness of the rear wire rod.