CN106688447A

CN106688447A - Straw chopping and returning machine with forwardly and reversely rotational double shafted blades

Info

Publication number: CN106688447A
Application number: CN201710105631.3A
Authority: CN
Inventors: 李秀; 李瑞彬
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-02-26
Filing date: 2017-02-26
Publication date: 2017-05-24

Abstract

The invention relates to a straw chopping and returning machine with forwardly and reversely rotational double shafted blades; a driving shaft and a driven shaft are mounted at the upper portion and lower portion of a chopping chamber of the machine respectively and are extended out of the chopping chamber in the same direction, a belt pulley and a driving gear are fixed coaxially to the extension end of the driving shaft, a driven gear is fixed to the extension end of the driven shaft, a primary spindle and a secondary spindle are mounted on a housing between the driving gear and the driven gear, a first transmission gear and a second transmission gear are fixed coaxially to the primary spindle, a third transmission gear and a fourth transmission gear are fixed coaxially to the secondary spindle, the driving gear meshes with the first transmission gear, the second transmission gear meshes with the third transmission gear, the fourth transmission gear meshes with the driven gear, and the belt pulley is in transmission connection to a power output shaft of a whole-feed combine. The multistage gear transmission mode replaces the existing belt transmission mode, and the machine is more solid and reliable in structure and better in chopping effect.

Description

Positive and negative bidirectional rotation twin shaft knife straw chopping and returning machine

Technical field

The present invention is related to and belongs to field of agricultural machinery, particularly a kind of positive and negative bidirectional rotation twin shaft knife straw chopping and returning machine.

Background technology

Due to containing substantial amounts of organic matter in stalk, consider that straw-returning is one from Circulation Agriculture Development economic angle The work pattern being significant, the development around stalk crasher is always one of important directions of studies in China；At present The stalk crasher of in the market production mainly has two kinds of equipments of form：One is the stalk crasher of matching tractor, the equipment It is individually to carry out chopping and returning for field straw after harvesting；Two is the stalk crasher of supporting united reaper, is developed Pulverizer be mainly using one many rotors moving knife be installed as main working parts, by with united reaper straw outlet It is connected, so as to the stalk to the discharge of harvester straw outlet is crushed and is shed.

A kind of existing stalk crasher suitable for united reaper（Patent No. CN201520855013.7）, it includes Upper and lower two rotating shafts, between rotating shaft by gear drive connect, in work, stalk first from united reaper straw outlet discharge into Enter pulverizer, first time crushing is carried out by the cutting blade generation impulsive force rotated at a high speed on pulverizer twin shaft；Two Coordinated by two-groove belt pulley and single groove belt pulley between individual rotating shaft, directly using belt transmission connection, make driving shaft and driven The equal rotating Vortex of axle, so as to carry out second chopping to stalk in the case of indifferential；Existing this stalk crasher, exist with Lower deficiency：1st, because using belt transmissioning mode, fix tightly soundness is not enough, and long-term use is easily skidded, worn and torn, such as in cutting straw Failure during stalk, then can block influence discharging；2nd, using belt transmissioning mode so that two rotating shafts of driving shaft and driven shaft are revolved in the same direction Turn, the blade through putting into practice driving shaft and driven shaft under rotating Vortex cannot cause part stalk without filling to ensureing crush efficiency Divide to crush and just fall into the accumulation of casing lower section, cause discharge thickness uneven, shed scope and be also restricted.

The content of the invention

For above-mentioned the deficiencies in the prior art, the technical problem to be solved in the present invention is to provide a kind of features simple structure, powder The broken more preferable straw chopping and returning machine of effect.

For this present invention design uses following scheme：

Positive and negative bidirectional rotation twin shaft knife straw chopping and returning machine, including casing, are provided with crushing chamber, the crushing chamber in the casing Upper end be connected with the straw outlet of full-feeding combine harvester, the upper and lower part of crushing chamber be separately installed with driving shaft and from Moving axis, the driving shaft is staggered with driven shaft, is uniformly laid with some groups of Disintegrating knifes on the driving shaft vertically, appoints The Disintegrating knife anticipated described in one group includes at least two strip blades being located on same circumference, equal vertically on the driven shaft It is even to be laid with several cutting blades, to that should have a strip blade between any two cutting blade, the driving shaft and from Moving axis is stretched out outside crusher chamber in the same direction, coaxial on the external part of the driving shaft to be fixed with belt pulley and driving gear, it is described from Driven gear is fixed with the external part of moving axis, primary rotating shaft is installed on the casing between the driving gear and driven gear With secondary rotating shaft, the first travelling gear and the second travelling gear coaxially are fixed with the primary rotating shaft, in the secondary rotating shaft The 3rd travelling gear and the 4th travelling gear coaxially are fixed with, the driving gear is engaged with the first travelling gear, described second Travelling gear is engaged with the 3rd travelling gear, and the 4th travelling gear is engaged with driven gear, the belt pulley and full feeding The power output shaft of formula united reaper is connected by belt transmission.

The beneficial effects of the present invention are：

Be improved for the connected mode of the twin shaft belt transmission in the same direction of existing stalk crasher by the present invention, using secondary gear The connected mode of transmission, twin shaft forms certain speed discrepancy by gear drive, and two rotating speeds are in opposite direction, make Disintegrating knife Shearing force is produced fully to be crushed stalk with cutting blade relative motion；The more existing straw of drive mechanism of present invention design The drive mechanism of stalk pulverizer, it is more solid and reliable, it is not easily blocked；Simultaneously crushing effect more preferably, discharging effect can be lifted 50% with On, from the forage of straw outlet discharge to shed scope bigger, more uniformly.

Brief description of the drawings

Specific embodiment of the invention is described further below in conjunction with the accompanying drawings, wherein：

Fig. 1 is main perspective view of the invention；

Fig. 2 is the side view of driving shaft and driven shaft in the present invention；

Fig. 3 is right view of the invention.

Specific embodiment

Shown positive and negative bidirectional rotation twin shaft knife straw chopping and returning machine, including casing 1 referring to Figures 1 and 2, the casing Crushing chamber 2 is provided with 1, the upper end of the crushing chamber 2 is connected with the straw outlet of full-feeding combine harvester, crushing chamber 2 it is upper Portion and bottom are separately installed with driving shaft 3 and driven shaft 4, and the driving shaft 3 is staggered with driven shaft 4, and driving shaft 3 is located at and leans on One end of nearly straw outlet, is uniformly laid with some groups of Disintegrating knifes, the crushing described in any one group vertically on the driving shaft 3 Blade includes four strip blades 5 being located on same circumference, and the circumferentially uniform arrangement of strip blade 5, spacing is identical, described Several circular saw blades 6 are uniformly laid with driven shaft 4 vertically, to that there should be a strip between any two circular saw blade 6 Blade 5, operating time bar blade 5 is accurately dialled in stalk between two circular saw blades 6.

Shown in reference picture 3, the driving shaft 3 and driven shaft 4 are stretched out outside crusher chamber 2 in the same direction, and the driving shaft 3 stretches out Belt pulley 7 and driving gear 8 are coaxially fixed with end, driven gear 9, the master are fixed with the external part of the driven shaft 4 Primary rotating shaft 10 and secondary rotating shaft 11 are installed, in the primary rotating shaft 10 on the casing 1 between moving gear 8 and driven gear 9 The first travelling gear 12 and the second travelling gear 13 coaxially are fixed with, coaxially the 3rd driving cog is fixed with the secondary rotating shaft 10 Wheel 14 and the 4th travelling gear 15, the driving gear 8 are engaged with the first travelling gear 12, second travelling gear 13 and the Three travelling gears 14 are engaged, and the 4th travelling gear 15 is engaged with driven gear 9, and the belt pulley 7 is combined with full feed type The power output shaft 16 of harvester is connected by belt transmission.

Each big I of gear is adjusted according to actual needs in Fig. 3, to control the speed discrepancy of driving shaft 3 and driven shaft 4, not It is confined to drawn implementation method in Fig. 3.

By power output shaft 16 by belt drive belt pulley 7 during work, and then driving shaft 3 is driven to rotate, so that actively Gear 8 drives primary rotating shaft 10 and secondary rotating shaft 11 to rotate successively by gear drive, finally drives driven shaft 4 to rotate；Actively Axle 3 and driven shaft 4 form certain speed discrepancy, and two rotating speeds are in opposite direction, make Disintegrating knife（Strip blade 5）And cutter Piece（Circular saw blade 6）Relative motion produces shearing force fully to be crushed stalk.

The above, the only present invention preferably specific embodiment, but the scope of the present invention is not limited thereto, any Those familiar with the art in the technical scope of present disclosure, all should by the change or replacement that can be readily occurred in It is included within the scope of the present invention.Therefore the scope of the present invention is defined by the protection domain of claims.

Claims

1. positive and negative bidirectional rotation twin shaft knife straw chopping and returning machine, including casing, is provided with crushing chamber, the crushing in the casing The upper end in chamber is connected with the straw outlet of full-feeding combine harvester, the upper and lower part of crushing chamber be separately installed with driving shaft and Driven shaft, the driving shaft is staggered with driven shaft, is uniformly laid with some groups of Disintegrating knifes on the driving shaft vertically, Disintegrating knife described in any one group includes at least two strip blades being located on same circumference, on the driven shaft vertically Uniformly be laid with several cutting blades, to that should have a strip blade between any two cutting blade, the driving shaft and Driven shaft is stretched out outside crusher chamber in the same direction, it is characterised in that be coaxially fixed with belt pulley and master on the external part of the driving shaft Moving gear, is fixed with driven gear, on the casing between the driving gear and driven gear on the external part of the driven shaft Primary rotating shaft and secondary rotating shaft are installed, coaxially the first travelling gear and the second travelling gear are fixed with the primary rotating shaft, Coaxially the 3rd travelling gear and the 4th travelling gear, the driving gear and the first travelling gear are fixed with the secondary rotating shaft Engagement, second travelling gear is engaged with the 3rd travelling gear, and the 4th travelling gear is engaged with driven gear, the skin Belt wheel is connected with the power output shaft of full-feeding combine harvester by belt transmission.