WO2015131808A1

WO2015131808A1 - Header of combine harvester

Info

Publication number: WO2015131808A1
Application number: PCT/CN2015/073593
Authority: WO
Inventors: 邱扬扬; 朱云飞
Original assignee: 星光农机股份有限公司
Priority date: 2014-03-07
Filing date: 2015-03-04
Publication date: 2015-09-11
Also published as: CN103828540B; CN103828540A

Abstract

The present invention provides a header of a combine harvester. The header of a combine harvester comprises a dustpan-shaped header rack (11), a cutter (13) at an opening of a dustpan, a reel (12) at a front top, a header auger (15) at a back inside the dustpan, a reel stay rod (12A) that stretches across a frame and is supported at a back top of the frame, and a header drive mechanism for transmitting power to the components. Power of the cutter (13) is input from a left side of a carrier drive shaft (161a) that is horizontally arranged at a back side of the dustpan shaped frame. Power of the header auger (15) and the reel (12) is input from a right side of a reel drive shaft (129b) that is installed inside the reel stay rod. A part of a drive structure of the present invention is arranged on a left side of the header, which is beneficial to a balance of left and right, relative to prior art, and also beneficial to damping and noise reduction. In addition, carrier drive uses a crank link mechanism to replace a swinging ring structure in prior art. A structure is simple; a cost is low; and maintenance is convenient.

Description

Combine harvester's header

Technical field

The present invention relates to a header of a combine harvester, and more particularly to the structure and transmission of a header drive.

Background technique

The transmission of the existing combine harvester is usually placed on the right side of the header frame. For example, the utility model patent CN20326177U discloses a pre-processing device for a combine harvester, in which the right side of the lateral end of the harvesting frame is provided with a transmission mechanism for the harvesting knife, a transmission mechanism for the auger auger, and a transmission mechanism for the reel. However, in the prior art such a header transmission device, when the crop is harvested, each transmission mechanism is easy to collide with the field; and the transmission is on the one side to make the center of gravity of the header to the right, which is not conducive to left and right balance, and is not conducive to shock absorption and noise reduction. . The cutter of the pre-treatment device of the combine harvester is driven by a pendulum ring structure, which is costly and difficult to maintain.

Summary of the invention

Accordingly, it is an object of the present invention to obviate the above disadvantages and to provide a header of a combine harvester capable of solving a cutter transmission mechanism in which the center of gravity of the header is right-centered, simple and reliable, and not easily collided.

The technical solution adopted by the present invention to solve the technical problem thereof is: a header of a combine harvester, comprising a dome-shaped header frame, a cutter at the cornice, a reel on the front upper side, and a header on the inner rear side of the crucible a stirrer, a reel strut spanning the frame and supported above the rear of the frame, and a header drive mechanism transmitting power to the above-mentioned components, characterized in that the power of the cutter and the auger of the header is arranged laterally in the frame The rear axle drive shaft is input to the left side, and the reel's power is input from the right side by the reel drive shaft installed in the reel strut.

Preferably, the header drive is comprised of a bridge assembly, a transition drive, and a crank linkage.

Preferably, the bridge device is mounted horizontally on the rear side of the header frame, and in the rear view, on the left side of the header crop delivery port.

Preferably, the bridge device consists of a bridge drive shaft, a feed pulley passive pulley and a bearing seat at the right end of the bridge drive shaft, and a left bridge drive sprocket at the left end.

Preferably, the left end of the bridge drive shaft is sleeved at the outermost side of the crank link mechanism.

Preferably, the reel drive shaft passes through the reel strut, the left end of the reel drive shaft is mounted with a reel pulley I, and the right end is equipped with an adjustable pulley.

Preferably, the left side of the header auger is equipped with a chain belt combination wheel, and the sprocket on the chain belt combination wheel is connected with the bridge transmission sprocket at the left end of the bridge transmission shaft, and the pulley on the chain belt combination wheel is The reel pulley I at the left end of the reel drive shaft is connected.

Preferably, the crank link mechanism is mounted on the left side of the header, and is composed of a crank seat, an upper knife link, a stalk joint bearing, and an upper It consists of a knife swing lever, a swing shaft, a pin shaft and a pulley.

The header of the combine harvester of the present invention has the following advantages over the prior art:

1. Part of the transmission structure on the left side relative to the prior art transmission is beneficial to the left and right balance, which is also conducive to shock absorption and noise reduction.

2. The bridge transmission replaces the prior art swing ring structure with a crank structure, which is simpler in structure, reduces cost and is easy to maintain.

3. The transmission position is on the left side, and the transmission mechanism is not easy to collide with the field according to the crop harvesting habit.

DRAWINGS

Figure 1 is a schematic diagram of the whole machine drive

Figure 2 is a plan view of the cutting portion

Figure 3 is a magnified view of the top view of the cutting section

Figure 3 is an isometric view of a partial transmission mechanism

Figure 4 is an isometric view of the reel strut

detailed description

A combine harvester, a conveying trough 241 on the body, a coffin-shaped header frame 11 at the front portion thereof, a cutter 13 at the crotch, a reel 12 at the front upper side, and a header at the rear of the crotch The dragon 15, a reel strut 12A that spans the frame and is supported above the rear of the frame, and a header drive 16 that transmits power to the components. The header transmission is composed of a bridge device 164, a transition transmission mechanism 16A, and a crank linkage mechanism 163. The one end side and the other end side of the intermediate shaft 45 of the engine driving force respectively transmit power forward and backward, and are transmitted forward to the gear case 35, and the gear box 35 transmits the driving force to the conveying groove active roller 22, and the conveying groove active roller 22 will The driving force is transmitted to the bridge transmission shaft 161a, and the bridge transmission shaft 161a transmits the driving force to the header auger 15 and the crank linkage mechanism 163, and the header auger 15 drives the reel transmission shaft 129b, and the reel drive shaft The 129b drives the reel shaft 123, and the crank linkage mechanism 163 drives the cutter 13 to operate.

The power of the cutter 13 and the header auger 15 is input from the left side of the bridge transmission shaft 161a laterally disposed on the rear side of the beak frame, and the reel 12 is powered by a reel mounted in the reel stay 12A. The drive shaft 129b is input from the right side. The left end of the reel drive shaft 129b is provided with a reel pulley I12a, and the right end is provided with an adjustable pulley 128. A chain belt combination wheel 157 is mounted on the left side of the header auger 15, and a sprocket on the chain belt combination wheel 157 is coupled to the bridge transmission sprocket 161c at the left end of the bridge transmission shaft 161a, and the belt on the chain belt combination wheel 157 The wheel is connected to the reel pulley I12a at the left end of the reel drive shaft 129b.

The bridge device 164 is horizontally mounted on the rear side of the header frame 11, and in the rear view, on the left side of the header crop delivery port 113a. The bridge device 164 is composed of a bridge transmission shaft 161a, a transmission groove driven pulley 161b and a bearing housing 161d at the right end of the bridge transmission shaft 161a, and a left-end bridge transmission sprocket 161c. The left end outermost sleeve of the bridge transmission shaft 161a Connecting crank connecting rod Agency 163.

The reel drive mechanism 16A is traversed by a reel drive shaft 129b mounted in the rear swing tube 129a of the reel stay 12A, a reel pulley I12a at the left end of the reel drive shaft 129b, and an adjustable pulley at the right end. 128 and the parts of the reel wheel II12b installed at the right end of the reel 12 are composed. The bridge drive sprocket 161c is coupled to the sprocket on the chain combination wheel 157 on the left side of the header auger 15, and the pulley on the chain combination wheel 157 is coupled to the rip pulley I12a to cause linkage. The adjustable pulley 128 and the reel pulley II12b are connected by an automatic tensioning mechanism 127.

The automatic tensioning mechanism 127 is composed of a T-shaped frame 127a, a fixing base 127b, a tension adjusting lever 127c, two tensioning pulleys 127d, and a tension spring 127e. When viewed from the side, the fixing seat 127b is fixed on the outer side of the middle portion of the support arm 12d at one end of the reel strut 12A. The tensioning wheel 127d is mounted on the T-shaped frame 127a and fixed on the fixing base 127b, and one end of the tension spring 127e is connected to the fixing seat. 127b, the other end is connected to the small hole on the horizontal plate of the T-shaped frame 127a, so that the T-shaped frame 127a swings upward with a fulcrum Q as an axis, and the two tensioning wheels 127d are Z-shaped inside and outside, which forms an automatic elasticity. Tightening.

The crank link mechanism 163 is attached to the left side of the header 1, and is composed of a crank seat 163a, an upper knife link 163b, a shank joint bearing 163g, an upper blade swing lever 163c, a swing link shaft 163d, a pin shaft 163e, and a pulley 163f. The crank seat 163a is sleeved with the left end of the bridge transmission shaft 161a, the upper knife link 163b is hinged and extended forward with the crank seat 163a, and the shank joint bearing 163g and the shank joint bearing 163g are attached to the front end of the upper knife link 163b. The handle is inserted into the arm hole extending laterally from the upper blade swinging rod 163c and fixed, and the upper blade swinging rod 163c is mounted on the left wall panel of the header frame 11 in a posture of swinging along the upper and lower axes, and the upper blade swinging rod 163c is forward. A pin 163e is mounted on the extended arm hole, the pin 163e is sleeved under the pulley 163f, and the pulley 163f is inserted into the elliptical ring of the cast band shank seat 142c at one end of the movable shank 142. During operation, the bridge transmission shaft 161a rotates to drive the crank seat 163a to rotate, and the crank seat 163a converts the rotary motion of the bridge transmission shaft 161a into the forward and backward movement of the upper cutter link 163b, and pushes the upper blade swing lever 163c to swing left and right, thereby The cutter 13 is made to cut the crop stalk by linear motion.

Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make appropriate modifications and changes without departing from the spirit and scope of the invention. Subject to the definition of the claims.

Claims

A header of a combine harvester, comprising: a scoop-shaped header frame (11), a cutter (13) at the cornice, a reel (12) on the front upper side, and a header on the inner rear side of the crucible Auger (15), a reel strut (12A) that spans the frame and supported above the rear of the frame, and a header drive that transmits power to the components, a cutter (13) and a header auger (15) The power is input from the left side of the bridge transmission shaft (161a) disposed laterally on the rear side of the dome frame, and the power of the reel (12) is from the right by the reel drive shaft (129b) installed in the reel strut Side input.
The header of a combine harvester according to claim 1, wherein the header transmission is composed of a bridge device (164), a reel transmission mechanism (16A), and a crank linkage mechanism (163).
A header for a combine harvester according to claim 2, wherein the bridge means (164) is horizontally mounted on the rear side of the header frame (11), and in the rear view, on the header delivery port (113a) On the left side.
A header for a combine harvester according to claim 2, wherein the bridge device (164) is driven by a cross-bridge drive shaft (161a) and a right end of the bridge drive shaft (161a). It is composed of a bearing housing (161d) and a left-end bridge transmission sprocket (161c).
A header for a combine harvester according to claim 4, wherein the left end of the bridge drive shaft (161a) is sleeved at the outermost side of the crank link mechanism (163).
A header for a combine harvester according to claim 5, wherein the crank link mechanism (163) is mounted on the left side of the header (1), and is composed of a crank seat (163a) and an upper knife link (163b). It is composed of a shank bearing (163g), an upper swing lever (163c), a swing shaft (163d), a pin (163e), and a pulley (163f).
A header for a combine harvester according to claim 1, wherein the reel drive shaft (129b) passes through the reel strut, and the left end of the reel drive shaft (129b) is fitted with a reel pulley. I (12a), with adjustable pulley (128) on the right end.
A header for a combine harvester according to any of the preceding claims, characterized in that the left side of the header auger (15) is fitted with a chain combination wheel (157), the chain on the chain combination wheel (157) The wheel is connected to the bridge drive sprocket (161c) at the left end of the bridge drive shaft (161a), and the pulley on the chain combination wheel (157) is connected to the left end of the reel drive shaft (129b). (12a) Connection.