CN2877245Y

CN2877245Y - Straw cutting device of corn harvester

Info

Publication number: CN2877245Y
Application number: CN 200520094789
Authority: CN
Inventors: 宋永军; 宋雪云
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-12-16
Filing date: 2005-12-16
Publication date: 2007-03-14
Anticipated expiration: 2015-12-16

Abstract

The utility model discloses a vertical type straw cutting mechanism of a corn harvester. The back end part on a knife section is provided with a connecting structure and this end forms connecting end; the front part is in trapeze or triangle shape, wherein, the inclined surface with a plurality of pattern teeth is provided above both waist parts and the inclined surface is also provided under the both waist parts of the knife blade. Compared with the prior art, the utility model is characterized in that: the inclined surface on upper and lower plane of both waist parts of the knife section could guarantee the upper and lower surface synchronous stress when the knife section cutting the knife body on one side in the course of cutting operation, avoiding elastic bending and the interference between knife section and the blade of stationary knife array, with usage safety and reliability.

Description

A kind of stalk cutting mechanism of corn picker

Technical field

The utility model relates to a kind of corn picker, exactly is a kind of stalk cutting mechanism of corn picker.

Background technology

Existing corn picker all is made up of self-propelled chassis, frame, stalk cutting mechanism etc.Wherein, the stalk cutting mechanism is made up of stationary knife row, moving knife row and moving knife row driving mechanism; Moving knife row is made up of knife bar and some knife sections of being arranged on this knife bar.Be shaped on draw bail on the rearward end body of knife section, this end forms union end; The outer shape of anterior body is trapezoidal or triangle, and its two waists body is the top equal bevel of described trapezoidal or place, place, waist limit, triangle both sides body, and makes some line teeth respectively on this position, inclined-plane body, forms blade.The subject matter that this stalk cutting mechanism in use exists is: owing to only be shaped on upper inclined surface on the knife section two waist bodies, so that in the cutting operation process, knife section cuts a side tool body under the cutting drag effect that puts on this skew back face, often produce flexural deformation under the elasticity, interfere between the blade that causes knife section and stationary knife to be arranged, cause the consequence of stalk cutting mechanism damage of components.

Summary of the invention

The purpose of this utility model is for people provide a kind of not fragile, uses the stalk cutting mechanism of more safe and reliable corn picker.

The purpose of this utility model is achieved in that it comprises knife section, is shaped on draw bail on the rearward end body of this knife section, and this end forms union end; The outer shape of anterior body is trapezoidal, the top equal bevel of its two waists body, and on this position, inclined-plane body, make some line teeth respectively, be characterized in the following also bevel of these knife section two waist bodies.

The purpose of this utility model can realize like this that also it comprises knife section, is shaped on draw bail on the rearward end body of this knife section, and this end forms union end; The outer shape of anterior body is a triangle, the top equal bevel of its two waists body, and on this position, inclined-plane body, make some line teeth respectively, be characterized in the following also bevel of these knife section two waist bodies.

After realizing, the utility model compared with prior art has following having a few: because the equal bevel of upper and lower faces of knife section two waist bodies, so that in the cutting operation process, it is simultaneously stressed to help guaranteeing that knife section cuts the upper and lower faces of a side tool body, thereby prevent that it from producing elastic bending deflection, and then interfere between the blade of avoiding knife section and stationary knife to arrange, use more safe and reliable.

Description of drawings

Fig. 1 is a version schematic diagram of the present utility model

Fig. 2 is the A-A cutaway view of Fig. 1

Fig. 3 is the top view of the utility model knife section

Fig. 4 is the lower view of the utility model knife section

Fig. 5 is the B-B view profile of Fig. 4

Fig. 6 is the top view of prior art knife section

Fig. 7 is the lower view of prior art knife section

Fig. 8 is the C-C view profile of Fig. 7

Embodiment

Further specify getting in touch and distinguishing of the utility model and prior art below in conjunction with accompanying drawing.

As seen from Figure 1, essential structure of the present utility model is same as the prior art, and it also is made up of stationary knife row, moving knife row and moving knife row driving mechanism; Stationary knife row is fixedly installed on protecting cutter device 3 and being arranged on this ledger-plate 7 that protects on the cutter device on the frame 1 by several and forms, and makes transverse concave groove 8 on the cutter device respectively protecting, and is shaped on rail groove on the groove of this transverse concave groove; Moving knife row form by knife bar 6 and by some knife sections 4 that connector 5 is fixed thereon, and knife bar 6 and the rail groove that protects on the cutter device are matched, and both can form sliding-contact; Moving knife row driving mechanism is made of toggle usually.During assembling, respectively protect the cutter device and be fixed on the frame 1, and make and be positioned at the rail groove that respectively protects on the cutter device and be positioned on the same horizontal line by connector 2; Moving knife row be arranged at stationary knife row above, and make to form between its knife bar and the described rail groove and be slidingly connected; On moving knife row driving mechanism setting and the frame, the clutch end on its power intake and chassis links, clutch end links with the knife bar that moving knife is arranged, and arranges in order to the driving moving knife.

The utility model is architecture advances to knife section to the contribution of prior art.By Fig. 3 to Fig. 8 as seen, the common ground of the utility model and existing knife section is that also being shaped on draw bail on its rearward end body is a pair of connection holes 9, and this end forms union end; The profile of its anterior body also is trapezoidal shape, and its two waist is the top also bevel 10 of described trapezoidal two waist limit place portion bodies, and makes some line teeth respectively on this position, inclined-plane body; The utility model difference with the prior art is also the following bevel 11 with these knife section two waist bodies.

Should illustrate that above-mentioned embodiment of the present utility model is not unique.For example: the first, the draw bail of knife section union end can also by connection holes 9 and be arranged on knife section and knife bar between the recessed prominent formula location structure of adapted each other constitute, or the like; The second, the outer shape of the anterior body of the utility model knife section also can be made triangle; The 3rd, stationary knife row's ledger-plate 7 also can substitute by being set directly at the blade that protects on the cutter device.

Claims

1, a kind of stalk cutting mechanism of vertical corn grain header, it comprises knife section, is shaped on draw bail on the rearward end body of this knife section, this end forms union end; The outer shape of anterior body is trapezoidal, the top equal bevel of its two waists body, and on this position, inclined-plane body, make some line teeth respectively, it is characterized in that the following also bevel of these knife section two waist bodies.

2, a kind of stalk cutting mechanism of vertical corn grain header, it comprises knife section, is shaped on draw bail on the rearward end body of this knife section, this end forms union end; The outer shape of anterior body is a triangle, the top equal bevel of its two waists body, and on this position, inclined-plane body, make some line teeth respectively, it is characterized in that the following also bevel of these knife section two waist bodies.