CN101702976A

CN101702976A - Returned straw pick-up fine crusher

Info

Publication number: CN101702976A
Application number: CN200910224723A
Authority: CN
Inventors: 杨自栋; 宋景玲; 杨善东; 张国海; 李洪文; 白钰
Original assignee: Shandong University of Technology
Current assignee: Shandong University of Technology
Priority date: 2009-11-10
Filing date: 2009-11-10
Publication date: 2010-05-12

Abstract

The invention provides a returned straw pick-up fine crusher which comprises a suspending pull bar, a gear-box, a frame, a pick-up device shield, a pick-up device and a primary transmission belt. The gear-box is arranged on the frame; the pick-up device shield is suspended at the bottom of the frame; a bearing of the pick-up device is supported by and installed on the frame, arranged below the pick-up device shield and connected with a belt wheel of an output shaft of the output end of the gear-box by the primary transmission belt in a transmission way. The returned straw pick-up fine crusher is characterized in that a straw crushing wheel is additionally arranged at the rear part of the pick-up device; the bearing of the straw crushing wheel is supported by and installed on the frame; a crushing wheel shield is arranged at the rear upside of the straw crushing wheel and is suspended on a suspending frame by a suspending bar sleeved with a compression spring; the straw crushing wheel and the pick-up device are connected by a second-stage transmission belt; a plurality of rows of flail knifes are arranged at intervals along the circumferential direction on the rim of the straw crushing wheel; a plurality of directional shims are arranged on the crushing wheel shield along the circumferential direction; and the flail knifes and the shims are arranged alternately, and the end parts of the flail knifes and the shims are overlapped in radial direction to effectively cut straws.

Description

Returned straw pick-up fine crusher

Technical field

The invention provides a kind of returned straw pick-up fine crusher, belong to agricultural machinery technological field.

Background technology

The core of protective farming technique is to have a certain amount of crop cover or stalk to cover under the situation on the face of land, carry out no-tillage, minimal till sowing, the facility task difficulty is big, traditional sower generally can't carry out normal operation.Particularly in the Yellow River and Huai He River Haiti district, no matter be manually or machine combining autumn corn, generally all require to carry out straw-returning, with combined harvester with stubble cleaner or after tractor band rotovator carries out straw-returning, the length of maize straw is generally more than 6 centimetres, cause the trafficability characteristic of no-tillage wheat seeder relatively poor, easily caused to stop up and block up, influenced operation quality and operating efficiency.Many places are for stalk in small, broken bits, prior to seeding with rotovator with straw-returning plot rotary tillage two to three times, with the secondary crushing straw, create good sowing condition.But be not suitable for crushing straw because rotovator revolves the design and the distribution of cutter,, not only wasted manpower and materials, also aggravated disturbance surface soil layer by the poor effect that cutting face of land stalk comes stalk in small, broken bits.

Summary of the invention

The purpose of this invention is to provide a kind ofly can address the above problem, with below the crushed stalk to 1 centimetre, guarantee the returned straw pick-up fine crusher that no-tillage seeding carries out smoothly.Its technical scheme is:

Comprise the suspension pull bar, gearbox, frame, the pickup case, pickup and one-level driving belt, wherein gearbox is installed on the frame, the pickup case is suspended on the bottom of frame, the pickup bearings is installed on the frame, and be positioned at the below of pickup case, power take-off through one-level driving belt and gearbox is in transmission connection, it is characterized in that: set up the crushed stalk wheel at the pickup rear, the crushed stalk wheel bearing supports and is installed on the frame, the crushing wheel case is positioned at the back upper place of crushed stalk wheel, hanger bar through being set with the compression spring is hung on the hanger bracket of frame, the crushed stalk wheel is in transmission connection through the secondary driving belt with pickup, on the wheel rim of crushed stalk wheel, along the circumferential direction be interval with many row's flail knives, corresponding with it, along the circumferential direction be provided with the cutter blade that is ranked more on the crushing wheel case, arrange flail knife more and be spaced more, and both ends be overlapping diametrically with the cutter blade that is ranked.

Described returned straw pick-up fine crusher, the blade indentation of stationary knife blade.

Its operation principle is: provide power by tractor motive power output shaft by the gearbox that shaft coupling drives on the fine crusher, by being with flexible pickup the long stalk in ground is picked up, through pickup case feeding crushed stalk wheel, by the paired stalk of stationary knife blade shaped on flail knife and the crushing wheel case support cutting and grinding are arranged, under the high speed rotating cutting of crushed stalk wheel, long stalk secondary on the ground is ground into length less than 1 centimetre short straw-returning.

The present invention compared with prior art, its advantage is:

1, the present invention has designed with pickup and has picked up face of land stalk, adopts the flail knife of high speed rotating to cooperate the support that forms stalk is arranged to cut with the stationary knife blade, with on the ground long stalk secondary be ground into length less than 1 centimetre short stalk after and the field, effectively solve the technical barrier and the extensive problem of going back seeding quality difference under the situation of field of stalk of the supporting no-tillage seeding machine trafficability characteristic of middle-size and small-size power difference, and power consumption is low, and the amount of breaking ground is few;

2, the hanger bar of crushing wheel case through being set with the compression spring is hung on the hanger bracket of frame, can realize the automatic adjusting of the stationary knife blade radial lap on flail knife and the crushing wheel case, effectively prevent when the stalk feed quantity is big obstruction between crushing wheel case and crushed stalk wheel and pulverized inhomogeneous situation.

Description of drawings

Fig. 1 is the structural representation of the embodiment of the invention;

Fig. 2 is an A-A part sectioned view embodiment illustrated in fig. 1;

Fig. 3 is the vertical view that crushing wheel case of the present invention is connected with hanger bracket.

Among the figure: 1. suspension pull bar 2. gearboxes 3. frames 4. pickup cases 5. pickups 6. one-level driving belts 7. secondary driving belts 8. hanger brackets 9. hanger bar 10. compression springs 11. crushed stalk are taken turns 12. crushing wheel cases, 13. stationary knife blades, 14. flail knives, 15. output shaft belts and are taken turns 16. pickup belt pulleys, 17. crushing wheel belt pulleys, 18. gimbal couplings

Embodiment

In the embodiment shown in Fig. 1-3: gearbox 2 is installed on the frame 3, pickup case 4 is suspended on the bottom of frame 3, pickup 5 bearings are installed on the frame 3, and be positioned at the below of pickup case 4, be in transmission connection through the output shaft belt wheel 15 of one-level driving belt 6 with gearbox 2 outputs, it is characterized in that: set up crushed stalk wheel 10 at pickup 5 rears, crushed stalk is taken turns 10 bearings and is installed on the frame 3, crushing wheel case 11 is positioned at the back upper place of crushed stalk wheel 10, hanger bar 9 through being set with compression spring 10 is hung on the hanger bracket 8 of frame 3, crushed stalk wheel 10 is in transmission connection through secondary driving belt 7 with pickup 5, on the wheel rim of crushed stalk wheel 10, along the circumferential direction be interval with many row's flail knives 14, corresponding with it, along the circumferential direction be provided with the cutter blade 13 that is ranked on the crushing wheel case 11 more, the blade indentation of stationary knife blade 13 arranges flail knife 14 more and be spaced with the cutter blade 13 that is ranked more, and both ends is overlapping diametrically.

Claims

1. returned straw pick-up fine crusher, comprise and hang pull bar (1), gearbox (2), frame (3), pickup case (4), pickup (5) and one-level driving belt (6), wherein gearbox (2) is installed on the frame (3), pickup case (4) is suspended on the bottom of frame (3), pickup (5) bearings is installed on the frame (3), and be positioned at the below of pickup case (4), be in transmission connection through the output shaft belt wheel (15) of one-level driving belt (6) with gearbox (2) output, it is characterized in that: set up crushed stalk wheel (10) at pickup (5) rear, crushed stalk wheel (10) bearings is installed on the frame (3), crushing wheel case (11) is positioned at the back upper place of crushed stalk wheel (10), hanger bar (9) through being set with compression spring (10) is hung on the hanger bracket (8) of frame (3), the crushing wheel belt pulley (17) of crushed stalk wheel (10) input is in transmission connection through secondary driving belt (7) with the pickup belt pulley (16) of pickup (5) input, on the wheel rim of crushed stalk wheel (10), along the circumferential direction be interval with many row's flail knives (14), corresponding with it, along the circumferential direction be provided with the cutter blade (13) that is ranked on the crushing wheel case (11) more, many row's flail knives (14) are spaced with the cutter blade (13) that is ranked more, and both ends are overlapping diametrically.

2. returned straw pick-up fine crusher as claimed in claim 1 is characterized in that: the blade indentation of stationary knife blade (13).