CN113439548A

CN113439548A - Harvester header and harvester

Info

Publication number: CN113439548A
Application number: CN202110906740.1A
Authority: CN
Inventors: 王友栋; 王斌; 周洲; 孙大开; 李立
Original assignee: Taizhou Changfa Agricultural Equipment Co ltd
Current assignee: Taizhou Changfa Agricultural Equipment Co ltd
Priority date: 2021-08-09
Filing date: 2021-08-09
Publication date: 2021-09-28
Anticipated expiration: 2041-08-09
Also published as: CN113439548B

Abstract

The invention provides a harvester header and a harvester, wherein the harvester header comprises: the cutting knife comprises a movable knife and a fixed knife; the screw conveyor is arranged behind the cutting knife; the driving device comprises a transmission shaft, a swing arm used for driving the movable cutter to reciprocate and a rocker arm which connects the transmission shaft and the swing arm and is connected with a pivot of the swing arm; the movable blade is fixed to the connecting piece, and the connecting piece is in pivot connection with the swing arm; and when the swing arm reciprocates, the limiting device is used for limiting the upward movement of the swing arm and/or the connecting piece so as to limit the upward jumping distance of the movable knife, so that the knife is prevented from being broken due to the touch of the movable knife and the fixed knife. Through the power take off end at drive arrangement rationally arrange stop device, ensure that the swing arm rebound distance can not be too big, and then ensure the stable safe reciprocating motion of cutting knife, the knife jumping distance can not be too big, prevent the emergence of card sword or disconnected sword, and then improve crop harvester's work efficiency.

Description

Harvester header and harvester

Technical Field

The invention relates to the field of crop harvesters, in particular to a harvester header and a harvester.

Background

The crop harvester is an integrated machine for harvesting crops, can complete harvesting and threshing at one time, concentrates grains into a storage bin, and then conveys the grains to a transport vehicle through a conveying belt.

The harvester header is a common working device on a crop harvester and can complete the process of cutting off and conveying crops backwards. The harvester header on the existing market is mostly composed of a cutting knife, an auger and a driving device, but in the process of harvesting operation of crops, because the power end of the cutting knife is of a swing ring structure, the power output direction of the swing ring structure is easy to jump upwards, the cutting knife often can jump upwards with too large distance, and then the problem that the cutting knife is clamped or even broken is caused, and the harvesting efficiency is seriously influenced.

Therefore, a harvester header is needed, which can effectively limit the jumping distance of the cutting knife and prevent the cutting knife from being blocked or broken.

Disclosure of Invention

The invention aims to provide a harvester header and a harvester, which solve the problem of cutter clamping or cutter breaking caused by overlarge cutter jumping distance of a cutting knife by reasonably arranging a limiting device at a power end of the cutting knife.

The present invention provides

A harvester header, comprising:

the cutting knife comprises a movable knife and a fixed knife, and the crop is cut off by the shearing force generated between the reciprocating motion of the movable knife and the fixed knife;

the screw conveyor is arranged behind the cutting knife and used for feeding the crops cut off by the cutting knife to the rear part of the machine;

the driving device is connected with the movable knife to provide power for the reciprocating motion of the movable knife and comprises a transmission shaft, a swing arm used for driving the movable knife to reciprocate and a rocker arm which connects the transmission shaft with the swing arm and is connected with a pivot of the swing arm;

the movable blade is fixed to the connecting piece, and the connecting piece is in pivot connection with the swing arm;

and when the swing arm reciprocates, the limiting device is used for limiting the upward movement of the swing arm and/or the connecting piece so as to limit the upward jumping distance of the movable knife, so that the knife is prevented from being broken due to the touch of the movable knife and the fixed knife.

Further, the harvester header still includes the installation axle that links to each other swing arm and connecting piece and fixed to the installation epaxial and locate the first bearing in the swing arm outside, stop device locates the top of first bearing.

Further, the header also comprises a header shell for mounting the cutting knife, a driving device, an auger and a limiting device; the header shell comprises a first mounting plate which is vertically arranged; the limiting device comprises a second mounting plate arranged on the first mounting plate, the position of the second mounting plate on the first mounting plate is adjustable, and the second mounting plate is arranged above the first bearing and is arranged in a non-contact mode with the first bearing.

Preferably, the limiting device further comprises a wear-resistant strip arranged at the bottom of the second mounting plate, and the wear-resistant strip is arranged above the first bearing and is in non-contact arrangement with the first bearing.

Further, the driving device also comprises a second bearing matched with the transmission shaft; the second bearing is mounted on the header housing.

Furthermore, the driving device also comprises an eccentric swinging ring and a connecting fork rotatably arranged on the outer ring of the eccentric swinging ring; the other end of the transmission shaft is fixedly connected with the connecting fork; the connecting fork is arranged along the radial direction of the eccentric swinging ring in a rotating way; the eccentric swinging ring does eccentric motion to drive the connecting fork to rotate, and then drives the transmission shaft to rotate.

Furthermore, the header also comprises a transportation assisting plate, the transportation assisting plate is arranged above the cutting knife and is fixedly connected with the movable knife, and the transportation assisting plate gathers the cut crops to the center of the header so as to be picked up by an auger; the fortune helping plate includes first fortune helping plate and the second fortune helping plate that the interval set up, first fortune helping plate includes the interval arrangement and is the first sawtooth portion that the slope set up, the second fortune helping plate includes the interval arrangement and is the second sawtooth portion that the slope set up, the opposite direction of slope of first sawtooth portion and second sawtooth portion just all faces header central authorities.

Furthermore, the header still includes the first fixed part with header casing bottom fixed connection, first fixed part extension sword traffic direction interval sets up between moving sword and the helping fortune board for the restriction move the sword upwards beat in reciprocating motion in-process.

Further, first fixed part includes first connecting portion, pressure cutting part and arranges in protruding portion between first connecting portion and the pressure toughness portion, first connecting portion include first mounting hole, first fixed plate through first mounting hole with header casing bottom fixed connection, it is used for restricting to press the toughness portion move the distance of beating upwards of sword in reciprocating motion process.

The invention also provides a harvester which is provided with the harvester header.

After the technical scheme is adopted, the invention has the following positive effects: through the power take off end at drive arrangement rationally arrange stop device, ensure that the swing arm rebound distance can not be too big, and then can guarantee the stable reciprocating motion of cutting knife stability safety to cutting knife output stable power, the jump sword distance is difficult too big, prevents the emergence of card sword or disconnected sword, and then improves crop harvester's work efficiency.

Drawings

The invention is described in further detail below with reference to the following figures and detailed description:

FIG. 1 is a schematic structural view of a header of the harvester of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic view of the connection structure of the limiting device and the first mounting plate of the present invention;

FIG. 4 is a schematic view of another perspective of the connection of the spacing device of the present invention to the first mounting plate;

FIG. 5 is a partial enlarged view of FIG. 1 at B;

FIG. 6 is a front view of a harvester header of the present invention;

FIG. 7 is an enlarged view of a portion of FIG. 6 at D;

FIG. 8 is an enlarged view of a portion of FIG. 6 at C;

FIG. 9 is an enlarged view of a portion of FIG. 6 at E;

FIG. 10 is a schematic illustration of a structure of the booster of the present invention;

FIG. 11 is a schematic diagram of a first fixing plate structure according to the present invention;

FIG. 12 is a schematic diagram of a second fixing plate structure according to the present invention;

fig. 13 is a schematic structural view of the screw of the present invention.

The reference numbers illustrate:

100-a cutting table;

1-cutting knife, 11-moving knife and 12-fixed knife;

2-a driving device, 21-a swing arm, 211-an eighth mounting hole, 212-a mounting shaft, 213-a first bearing, 22-a transmission shaft, 23-a swing arm, 231-a sixth mounting hole, 232-a seventh mounting hole, 24-a second bearing, 25-an eccentric swing ring and 26-a connecting fork;

3-auger, 31-auger carrier roller, 32-left helical blade, 33-right helical blade and 34-feeding rod;

4-header shell, 41-first side wall, 42-second side wall, 43-third side wall, 44-first mounting plate, 441-fourth connecting part, 4411-fourth mounting hole, 442-fifth connecting part, 4421-fifth mounting hole;

5-an auxiliary moving plate, 51-a first auxiliary moving plate, 511-a first sawtooth part, 512-a first flat part, 513-a first avoidance part, 52-a second auxiliary moving plate, 521-a second sawtooth part, 522-a second flat part and 523-a second avoidance part;

6-a first fixing plate, 61-a first connecting part, 611-a first mounting hole, 62-a toughening part and 63-a bulge;

7-a second fixing plate, 71-a second connecting part, 711-a second mounting hole, 72-a third connecting part and 721-a third mounting hole;

8-a limiting device, 81-a second mounting plate, 811-a sixth connecting part, 8111-a waist hole, 812-a seventh connecting part and 82-a wear-resistant strip;

and a connecting piece 9.

Detailed Description

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 description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".

It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

In this context, it is to be understood that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not intended to indicate or imply relative importance.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.

Embodiments of the present invention are described in further detail below with reference to the accompanying drawings of the specification.

The fore-aft relationship described herein is with reference to the direction of movement of the harvester, which includes a track assembly, a threshing assembly, a gap bridge, a control bin, a chassis, a grain bin, a threshing housing, a grain discharge bin, and a harvesting assembly. The crawler belt assembly is arranged at the bottom of the chassis and used for driving the harvester to move. Reap the subassembly including setting up in header 100 in chassis the place ahead and being fixed in the reel of header upper end, the gap bridge sets up and is used for carrying cereal to the subassembly of threshing in header 100 rear, the subassembly of threshing sets up and sends grain to the grain tank after threshing in threshing shell is inside to be used for threshing. The control bin is arranged in front of the grain tank and used for controlling the operation of the harvester. Because the structures of the track assembly, the threshing assembly, the gap bridge, the chassis, the grain tank, the threshing shell, the grain unloading cylinder and the control bin are mature technologies in the field, the detailed description of the pictures and the characters is not provided herein, and only the header 100 related to the invention is described in detail.

Referring to fig. 1, the header 100 includes a header housing 4, a cutter 1, an auger 3, a driving device 2, a connecting member 9, a limiting device 8, and a transportation assistance plate 5. The cutting knife 1 comprises a movable knife 11 and a fixed knife 12, and crops are cut off through shearing force generated between reciprocating motion of the movable knife 11 and the fixed knife 12. The driving device 2 is connected with the movable blade 11 to provide power for the reciprocating motion of the movable blade 11, and the driving device 2 comprises a transmission shaft 22, a swing arm 21 used for driving the movable blade to reciprocate and a rocker arm 23 which connects the transmission shaft 22 with the swing arm 21 and is in pivot connection with the swing arm 21. The connecting piece 9 is fixedly connected with the moving blade, and the connecting piece 9 is connected with the swing arm 21 through a pivot. When the swing arm 21 reciprocates, the limiting device 8 is used for limiting the upward movement of the swing arm 21 and/or the connecting piece 9 so as to limit the upward jumping distance of the movable knife 11, so that the knife 11 is prevented from being broken due to the contact with the fixed knife 12. The motion-assisting plate 5 is arranged above the cutting knife 1 and fixedly connected with the movable knife 11, and the cut crops are gathered towards the center of the header 100 by the motion-assisting plate 5 so as to be picked up by the auger 3. The auger 3 is arranged behind the cutting knife 1 and is used for feeding the crops cut by the cutting knife 1 to the rear of the machine. Header casing 4 is used for installing cutting knife 1, drive arrangement 2, screw feeder 3, stop device 8 and helping fortune board 5.

Referring to fig. 2-4, the header housing 4 includes a first mounting plate 44. The limiting device 8 comprises a second mounting plate 81 arranged on the first mounting plate 44 and a wear-resistant strip 82 fixedly connected to the bottom of the second mounting plate 81, and the position of the second mounting plate 81 on the first mounting plate 44 is adjustable. The driving device 2 comprises a mounting shaft 212 for connecting the swing arm 21 with the connecting piece 9 and a first bearing 213 fixed on the mounting shaft 212 and arranged outside the swing arm 21; the bottom of the wear-resistant strip 82 is arranged in a non-contact manner with the outer ring of the first bearing 213, and the spacing distance is 0.3-0.8 mm; the length of the wear-resistant strip is 10-100 mm. Through setting up wear-resisting strip 82 and first bearing 213, effectively increase wear resistance and spacing fluency, further ensure that swing arm 21 and connecting piece 9 can prolong the assigned direction steady motion, in addition, consider to harvester operational environment, cutting knife 1 needs the motion space of moderate degree, through the interval that rationally sets up wear-resisting strip 82 and first bearing 213, effectively ensure cutting knife 1's stable reciprocating motion.

The first mounting plate 44 includes a fourth connecting portion 441 and a fifth connecting portion 442 arranged at an angle to the fourth connecting portion 441, the fourth connecting portion 441 has a fourth mounting hole 4411, and the first mounting plate 44 is fixedly connected to the header housing 4 through the fourth mounting hole; the fifth connecting portion 442 is provided with at least two fifth mounting holes 4421 for connecting with the second mounting plate 81; the second mounting plate 81 includes a sixth connecting portion 811 connected to the fifth connecting portion 442 and a seventh connecting portion 812, and the sixth connecting portion 811 is provided with a waist hole 8111 matched with the fifth mounting hole 4421 in position and size, so as to ensure that the second mounting plate 81 is adjustable on the first mounting plate 44. The wear-resistant strip 82 is welded with the bottom of the seventh connecting part 812.

Referring to fig. 5, the swing arm 23 includes a sixth mounting hole 231 and a seventh mounting hole 232 provided at both ends; the transmission shaft 22 is in transmission connection with the rocker arm 23 through a sixth mounting hole 231; the rocker arm 23 is rotatably connected with the swing arm 21 through a seventh mounting hole 232; the other end of the swing arm 21 is provided with an eighth mounting hole 211; the swing arm 21 is connected with the connecting piece 9 through an eighth mounting hole 211; the transmission shaft 22 drives the rocker arm 23 to rotate, and further drives the swing arm 21 and the connecting piece 9 connected with the swing arm 21 to reciprocate, so as to drive the movable blade 11 to reciprocate.

The drive means 2 further comprise a second bearing 24 cooperating with the transmission shaft 22; the second bearing 24 is mounted on the header housing 4.

The driving device 2 further comprises an eccentric swinging ring 25 and a connecting fork 26 rotatably arranged on the outer ring of the eccentric swinging ring 25; the other end of the transmission shaft 22 is fixedly connected with a connecting fork 26; the connecting fork 26 is arranged along the radial direction of the eccentric swinging ring 25 in a rotating way; the eccentric swinging ring 25 makes eccentric motion to drive the connecting fork 26 to rotate, and further drive the transmission shaft 22 to rotate.

The header housing 4 includes a first sidewall 41 and a second sidewall 42 disposed on both sides thereof, the first sidewall 41 being disposed on one side of the driving device 2, and the second sidewall 42 being disposed on the other side of the header housing 4. Referring to fig. 10, the assisting movement plates 5 include first assisting movement plates 51 and second assisting movement plates 52, the first assisting movement plates 51 and the second assisting movement plates 52 are disposed at two sides of the header 100 at intervals, the first assisting movement plates 51 are disposed at one side of the first side wall 41, the second assisting movement plates 52 are disposed at one side of the second side wall 42, a range a from the first side wall 41 to the second side wall is 10mm to 100mm in a process that the first assisting movement plates 51 reciprocate with the moving blade 11, and a range b from the second side wall 42 to the second side wall is 10mm to 100mm in a process that the second assisting movement plates 52 reciprocate with the moving blade 11.

The length of the first auxiliary board 51 is greater than that of the second auxiliary board 52, the length range value c of the first auxiliary board 51 is 1200 mm-1500 mm, the length range value d of the second auxiliary board 52 is 400 mm-600 mm, and the distance range value e between the first auxiliary board 51 and the second auxiliary board 52 is 200 mm-300 mm.

The first transportation assisting plate 51 comprises first saw teeth 511 which are arranged at intervals and are arranged obliquely, the second transportation assisting plate 52 comprises second saw teeth 521 which are arranged at intervals and are arranged obliquely, the first saw teeth 511 and the second saw teeth 521 are opposite in oblique directions and face the center of the harvester header 100, the first transportation assisting plate 51 comprises first flat parts 512 which are arranged between the first saw teeth 511 and used for connecting the first saw teeth 511, and the second transportation assisting plate 52 comprises second flat parts 522 which are arranged between the second saw teeth 521 and used for connecting the second saw teeth 521.

The first serration portion 511 and the second serration portion 521 are triangular or trapezoidal, the first serration portion 511 and the second serration portion 521 have the same size and shape, the first flat portion 512 and the second flat portion 522 have the same size and shape, and the length range value f of the first flat portion 512 and the second flat portion 522 is 10mm to 30 mm.

The header shell 4 further comprises a third side wall 43 arranged at the bottom of the header shell, the harvester header 100 further comprises a first fixing plate 6, and the first fixing plate 6 is arranged between the movable knife 11 and the transportation assisting plate 5 and fixed on the third side wall 43 to limit the upward jumping of the movable knife 11 in the reciprocating process.

Referring to fig. 11, the first fixing plate 6 includes a first connecting portion 61, a pressing and toughening portion 62, and a protruding portion 63 disposed between the first connecting portion 61 and the pressing and toughening portion 62, the first connecting portion 61 includes a first mounting hole 611, the first fixing plate 6 is fixedly connected to the third side wall 43 through the first mounting hole 611, and the pressing and toughening portion 62 is configured to limit upward movement of the movable blade 11 during the reciprocating motion.

The harvester header 100 further comprises a second fixing plate 7, and the second fixing plate 7 is arranged between the motion assisting plate 5 and the movable knife 11 and used for fixing the motion assisting plate 5 on the movable knife 11.

Referring to fig. 12, the second fixing plate 7 includes a second connecting portion 71 and a third connecting portion 72, the second connecting portion 71 is provided with a second mounting hole 711, the third connecting portion 72 is provided with a third mounting hole 721, the second connecting portion 71 is fixedly connected to the movable blade 11 through the second mounting hole 711, and the third connecting portion 72 is fixedly connected to the motion assisting plate 5 through the third mounting hole 721.

The first and

second assistance plates

51 and 52 shown in fig. 6 to 9 include a first escape part 513 disposed above the first fixing plate 6 to escape the first fixing plate 6.

The first auxiliary board 51 further comprises a second avoidance portion 523 which is arranged above the connecting piece 9 and is used for avoiding the connecting piece 9, and the length of the second avoidance portion 523 is greater than that of the first avoidance portion 513; the height of the first serration 511 above the second escape part 523 is greater than the height of the first serration 511 above the first escape part 513; the height of the first straight portion 512 above the second escape portion 523 is greater than the height of the first straight portion 512 above the first escape portion 513.

Referring to fig. 13, the auger 3 includes an auger roller 31, a left helical blade 32 disposed on the auger roller, a right helical blade 33 disposed on the auger roller, and a retractable feeding rod 34 disposed between the left helical blade 32 and the right helical blade 33; the left helical blade 32 and the right helical blade 33 cooperate with each other to gather the crop to the area of the feed stalk 34.

When the harvester is used, the harvester moves forwards, at the moment, the eccentric swing ring 25 rotates to drive the connecting fork 26 to rotate and further drive the driven transmission shaft 22 to rotate, the transmission shaft 22 drives the swing arm 21 to do horizontal reciprocating motion through the rocker arm 23, and the swing arm 21 drives the connecting piece 9 to do reciprocating motion, so that the movable knife 11 reciprocates, the movable knife 11 and the fixed knife 12 generate shearing force to cut off crops, meanwhile, the movable knife 11 and the movable knife 11 are fixedly connected to form a first transportation assisting plate 51 and a second transportation assisting plate 52 to gather the cut-off crops to the auger 3, the left helical blade 32 and the right helical blade 33 rotate along with the auger carrier roller 31 to gather the crops to the feeding rod 34, the feeding rod 34 feeds the crops to the gap bridge, the crops are conveyed to the threshing component through the gap bridge to be threshed, the threshed crops are conveyed to the grain tank, and the crops are harvested.

It will be apparent to those skilled in the art that various modifications and variations can be made to the above-described exemplary embodiments of the present invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

Claims

1. A harvester header, its characterized in that, it includes:

2. A harvester header as in claim 1, wherein: still include the installation axle that links to each other swing arm and connecting piece and fix to the installation epaxial and locate the first bearing in the swing arm outside, stop device locates the top of first bearing.

3. A harvester header as in claim 2, wherein: the header also comprises a header shell used for installing the cutting knife, the driving device, the screw conveyor and the limiting device; the header shell comprises a first mounting plate which is vertically arranged; the limiting device comprises a second mounting plate arranged on the first mounting plate, the position of the second mounting plate on the first mounting plate is adjustable, and the second mounting plate is arranged above the first bearing and is arranged in a non-contact mode with the first bearing.

4. A harvester header as in claim 3, wherein: the limiting device further comprises a wear-resistant strip arranged at the bottom of the second mounting plate, and the wear-resistant strip is arranged above the first bearing and is arranged in a non-contact manner with the first bearing.

5. A harvester header as in claim 3, wherein: the driving device also comprises a second bearing matched with the transmission shaft; the second bearing is mounted on the header housing.

6. A harvester header as in claim 1, wherein: the driving device also comprises an eccentric swinging ring and a connecting fork rotatably arranged on the outer ring of the eccentric swinging ring; the other end of the transmission shaft is fixedly connected with the connecting fork; the connecting fork is arranged along the radial direction of the eccentric swinging ring in a rotating way; the eccentric swinging ring does eccentric motion to drive the connecting fork to rotate, and then drives the transmission shaft to rotate.

7. A harvester header as in claim 1, wherein: the header also comprises a transportation assisting plate, the transportation assisting plate is arranged above the cutting knife and is fixedly connected with the movable knife, and the transportation assisting plate gathers the cut crops to the center of the header so as to be picked up by an auger; the fortune helping plate includes first fortune helping plate and the second fortune helping plate that the interval set up, first fortune helping plate includes the interval arrangement and is the first sawtooth portion that the slope set up, the second fortune helping plate includes the interval arrangement and is the second sawtooth portion that the slope set up, the opposite direction of slope of first sawtooth portion and second sawtooth portion just all faces header central authorities.

8. A harvester header as claimed in claim 7, wherein: the header still includes the first fixed part with header casing bottom fixed connection, first fixed part extension sword traffic direction interval sets up between moving sword and the helping hand board for the restriction move the sword upwards beat in reciprocating motion in-process.

9. A harvester header as in claim 8, wherein: the first fixing part comprises a first connecting part, a pressing edge part and a protruding part arranged between the first connecting part and the pressing edge part, the first connecting part comprises a first mounting hole, a first fixing plate is fixedly connected with the bottom of the header shell through the first mounting hole, and the pressing edge part is used for limiting the upward jumping distance of the moving knife in the reciprocating motion process.

10. A harvester, characterized in that it has a harvester header according to any one of claims 1-9.