CN218125603U - Threshing concave plate adjusting device and combine harvester - Google Patents
Threshing concave plate adjusting device and combine harvester Download PDFInfo
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- CN218125603U CN218125603U CN202221541390.XU CN202221541390U CN218125603U CN 218125603 U CN218125603 U CN 218125603U CN 202221541390 U CN202221541390 U CN 202221541390U CN 218125603 U CN218125603 U CN 218125603U
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Abstract
The utility model belongs to the technical field of combine threshing, concretely relates to threshing concave adjusting device and combine. Threshing concave adjusting device includes: the first rotating shaft is horizontally arranged and is rotationally connected with the vehicle body; the threshing concave plate is arranged parallel to the first rotating shaft, each first concave plate pull rod and each second concave plate pull rod of the threshing concave plate are fixedly installed on an adjusting pull rod, the other end of each adjusting pull rod is rotatably connected to the periphery of the first rotating shaft, and the concave surface of the threshing concave plate faces the first rotating shaft; and an adjustment mechanism. The utility model discloses an adjustment mechanism drives first pivot and rotates, can drive threshing concave is approximate reciprocates, just can change threshing concave and threshing cylinder's clearance distance to adjust the concave entry clearance and the concave export clearance at threshing concave both ends simultaneously.
Description
Technical Field
The utility model belongs to the technical field of combine threshing, concretely relates to threshing concave plate adjusting device and combine.
Background
Generally, the combine harvester needs to be suitable for harvesting of various different crops, when different crops are harvested, due to the fact that the shapes of crop grains are different, threshing gaps of the combine harvester are changed along with the requirements, and the concave plate adjusting system which is simple and reliable in operation can improve the use experience and harvesting efficiency of a user.
One condition of the prior art is that one end of a concave plate is fixed between side walls through a shaft, and the concave plate is rotated along the shaft through a control handle, so that a threshing gap between the concave plate and a roller is changed, and the existing transverse axial flow wheat machine adopts the structure. The gap between the concave plates can only change the gap between the materials entering the roller, and the gap between the materials leaving the roller can not be changed, so that the adaptability of the harvested crops is poor.
The other situation is that four angular points of the concave plate are connected with a connecting rod, the connecting rod moves up and down through a driving mechanism to adjust the gap of the concave plate, vehicles in foreign countries are used, and the structure is not available in China, and mainly belongs to foreign brands such as class, john Diel and Netherlands. The whole control structure is complex, the manufacturing cost is high, and the economical efficiency is poor.
The harvester gets into the system of threshing with the material through the header system from the notch board entrance, the material passes through the clearance between notch board and the cylinder, beat in the cylinder rotation and rub with the notch board combined action down and thresh, thresh out partly through the notch board fall into cleaning system, partly along with the straw gets into piece-rate system, carry out the straw and thresh the separation of thing, the harvester is when the different crops of results, need thresh the clearance adjustment before the crop according to concrete results carries out the results, just so can guarantee the quality of crop results (contain qualified percentage of damage and seed grain loss rate). Too large clearance leads to unclean threshing of crops, thus leading to seed loss, and too small clearance leads to seed damage, thus reducing harvest quality, and for the harvester, it is vital to use reasonable threshing clearance.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model provides a threshing concave plate adjusting device and a combine harvester. Based on the adjusting device, the concave plate inlet gap and the concave plate outlet gap can be simultaneously controlled through one operating rod.
The utility model provides a technical scheme as follows:
a threshing plate adjustment apparatus comprising:
the first rotating shaft is horizontally arranged and is rotationally connected with the vehicle body;
the threshing concave plate is arranged in parallel to the first rotating shaft, two ends of the threshing concave plate on the same side are fixedly mounted at one ends of the two adjusting pull rods through the two first concave plate pull rods, two ends of the threshing concave plate on the other side are fixedly mounted at one ends of the two adjusting pull rods through the two second concave plate pull rods, the other end of each adjusting pull rod is rotatably connected to the periphery of the first rotating shaft, and the concave surface of the threshing concave plate faces the first rotating shaft;
and the adjusting mechanism is used for driving the first rotating shaft to rotate so as to drive the threshing concave plate to be close to or far away from the threshing cylinder.
Based on the technical scheme, the adjusting mechanism drives the first rotating shaft to rotate, the threshing concave plate can be driven to move up and down approximately, and the gap distance between the threshing concave plate and the threshing roller can be changed, so that the gap between the concave plate inlet and the concave plate outlet at two ends of the threshing concave plate can be adjusted simultaneously.
Specifically, the adjustment mechanism includes:
the second rotating shaft is horizontally arranged, is rotatably connected with the vehicle body and is higher than the first rotating shaft;
one end of each transmission pull rod is rotatably connected with one end of a rotating arm, the other end of each rotating arm is fixedly arranged on the second rotating shaft, the other end of each rotating arm is rotatably arranged on a first rotating shaft sleeve, the first rotating shaft sleeve is fixedly arranged on the first rotating shaft, and the other end of each adjusting pull rod is rotatably connected to the periphery of the first rotating shaft sleeve;
and the adjusting mechanism is used for driving the second rotating shaft to rotate so as to drive the first rotating shaft to rotate.
Based on the technical scheme, the rotating arm, the transmission pull rod and the first rotating shaft sleeve form a connecting rod structure, and the second rotating shaft can be conveniently driven to rotate through the adjusting mechanism so as to drive the first rotating shaft to rotate.
Specifically, the adjustment mechanism includes:
one end of the adjusting connecting rod is fixedly connected with a second rotating shaft sleeve, and the second rotating shaft sleeve is fixedly arranged on the second rotating shaft;
the handle mechanism is used for driving the adjusting connecting rod to rotate and is matched with the limiting adjusting mechanism to limit the rotation of the adjusting connecting rod.
Based on the technical scheme, the rotation and the limit of the adjusting connecting rod can effectively control and maintain the clearance adjustment of the threshing concave plate.
Specifically, spacing adjustment mechanism includes:
the limiting convex plate is fixed on one side surface of the adjusting connecting rod;
an arc-shaped limit toothed plate inserted into a gap between the limit convex plate and the adjusting connecting rod;
and the limiting clamping plate is rotatably arranged on the other side surface of the adjusting connecting rod, the rotating shaft of the limiting clamping plate is perpendicular to the adjusting connecting rod, and the limiting clamping plate can rotate to enter or separate from the teeth of the arc-shaped limiting toothed plate.
Based on above-mentioned technical scheme, rotate through spacing cardboard and get into or break away from between the tooth of arc limit teeth board, the function of playing spacing and release that just can be convenient. After releasing, the clearance of the threshing concave plate can be adjusted.
Specifically, the concave surface of the arc-shaped limit toothed plate faces the second rotating shaft, and the teeth of the arc-shaped limit toothed plate are located on the convex surface of the arc-shaped limit toothed plate.
Specifically, the arc-shaped limit toothed plate is rotatably installed on the installation seat.
Specifically, the handle mechanism includes:
the control handle is a hollow tube structure fixed on the adjusting connecting rod, a button rod arranged along the length direction of the adjusting connecting rod is sleeved in the control handle, a hook structure is arranged at the end part of the button rod, and the hook structure penetrates through and hooks one end of the limiting clamping plate;
and the bent hook parts arranged at the two ends of the spring respectively penetrate through and hook the end part of the adjusting connecting rod and the bent hook structure of the button rod.
Based on above-mentioned technical scheme, can be convenient through pushing down button bar and button bar, let spacing cardboard get into or break away from between the tooth of arc spacing pinion rack to play spacing and release's effect. The limiting clamping plate can be tilted or reset under the driving of the hook structure of the button rod.
The two ends of the spring are bent into hooks which can hook the hook structure of the button rod and the lower end of the operating handle respectively. The button rod is pressed down, the limiting clamping plate can be jacked to tilt, limiting is relieved, and meanwhile the spring is stretched. The button rod can be released to reset.
Specifically, one end of each of the two first concave plate pull rods is fixedly arranged on the threshing concave plate and is of a fixed-length structure or a length-adjustable structure;
specifically, one end of each of the two second concave plate pull rods is fixedly mounted on the threshing concave plate and is of a fixed-length structure or a length-adjustable structure.
The utility model also provides a combine, it has the utility model provides a concave adjusting device threshes, first pivot rotation is connected on the automobile body.
Correspondingly, the second rotating shaft is rotatably connected to the vehicle body.
The combine harvester has a threshing cylinder, and a threshing concave plate is correspondingly arranged below the threshing cylinder and is eccentrically arranged with the threshing cylinder. Thus, the arrangement mode of the existing threshing concave plate and the threshing cylinder can be matched.
Further, the control handle is arranged on the electric telescopic structure.
Based on the technical scheme, the automatic operation is convenient.
Generally, the utility model has the advantages of as follows:
1. the device can simultaneously adjust the material feeding gap and the material outlet gap, and improves the adaptability of the harvester.
2. The structure is simple and reliable, and the operation is convenient;
drawings
Fig. 1 is a schematic view of the overall structure of the threshing concave adjusting device provided by the utility model.
Fig. 2 is a view of the adjusting mechanism part of the threshing concave adjusting device provided by the utility model.
Fig. 3 is another view of the adjusting mechanism part of the threshing concave adjusting device provided by the utility model.
In fig. 1, 2 and 3, the structures represented by the reference numerals are listed as follows:
1. a control handle; 2. a second rotating shaft; 3. a drive link; 4. a first rotating sleeve; 5. a first rotating shaft; 6. a first concave plate pull rod; 7. a second concave plate pull rod; 8. a threshing concave plate; 9. an adjusting connecting rod; 10. a second rotary shaft sleeve; 12. a limiting clamping plate; 13. an arc-shaped limit toothed plate; 14. a limiting convex plate; 15. a rotating arm; 16. a mounting seat; 17. a spring; 18. a button rod.
Detailed Description
The following description is made for the purpose of illustrating the principles and features of the present invention, and is not intended to limit the scope of the invention.
It will be understood that when an element or component is referred to as being "connected," "positioned," or "mounted" to another element or component, it can be directly on the other element or component or intervening elements or components may also be present. The terms "left", "right", "upper", "lower" and the like as used herein are for illustrative purposes only.
In one embodiment, as shown in fig. 1, the threshing plate adjusting means comprises: the first rotating shaft 5 is horizontally arranged and is rotationally connected with the vehicle body; a threshing concave plate 8 arranged parallel to the first rotating shaft 5, wherein the two ends of the threshing concave plate 8 on the same side are fixedly arranged on one end of two adjusting pull rods through two first concave plate pull rods 6, the two ends of the threshing concave plate 8 on the other side are fixedly arranged on one end of two adjusting pull rods through two second concave plate pull rods 7, the other end of each adjusting pull rod is rotatably connected to the periphery of the first rotating shaft 5, the concave surface of the threshing concave plate 8 faces the first rotating shaft 5, and the first rotating shaft 5 and the threshing cylinder are eccentrically arranged; and an adjusting mechanism for driving the first rotating shaft 5 to rotate so as to drive the threshing concave 8 to get close to or far away from the threshing cylinder. One end of each of the two first concave plate pull rods 6 and one end of each of the two second concave plate pull rods 7 can be respectively and fixedly arranged on the threshing concave plate 8. Based on the technical scheme, the first rotating shaft is driven to rotate by the adjusting mechanism, the threshing concave plate can be driven to move up and down approximately, and the gap distance between the threshing concave plate and the threshing cylinder can be changed, so that the gap between the concave plate inlet and the concave plate outlet at the two ends of the threshing concave plate can be adjusted simultaneously. In particular, the threshing concave 8 is generally tile-shaped.
In one embodiment, as shown in fig. 1 and 2, the adjustment mechanism comprises: a second rotating shaft 2 horizontally arranged, rotatably connected to the vehicle body, and having a height higher than that of the first rotating shaft 5; one end of the transmission pull rod 3 is rotatably connected with one end of a rotating arm 15, the other end of the rotating arm is fixedly arranged on the second rotating shaft 2, the other end of the rotating arm is rotatably arranged on a first rotating shaft sleeve 4, the first rotating shaft sleeve 4 is fixedly arranged on a first rotating shaft 5, and the other end of each adjustment pull rod is rotatably connected to the periphery of the first rotating shaft sleeve 4; and the adjusting mechanism is used for driving the second rotating shaft 2 to rotate so as to drive the first rotating shaft 5 to rotate. The two ends of the transmission pull rod 3 can be respectively rotatably installed through the structures of the pin shaft and the cotter pin. Based on this technical scheme, rocking arm, transmission pull rod and first pivot cover have formed a connecting rod structure, and what can be convenient drives the rotation of second pivot through adjustment mechanism to drive first pivot and rotate. Wherein, can be in the periphery of first swivel sleeve 4 through the other end of round pin axle articulated adjustment pull rod, the round pin axle is eccentric setting with first swivel shaft.
In one embodiment, as shown in fig. 1, the adjustment mechanism comprises: one end of the adjusting connecting rod 9 is fixedly connected with a second rotating shaft sleeve 10, and the second rotating shaft sleeve 10 is fixedly arranged on the second rotating shaft 2; and the handle mechanism is used for driving the adjusting connecting rod 9 to rotate and is matched with the limiting adjusting mechanism to limit the rotation of the adjusting connecting rod 9. Based on the technical scheme, the rotation and the limit of the adjusting connecting rod can be effectively controlled and maintained for adjusting the clearance of the threshing concave plate.
In one embodiment, as shown in fig. 1 and 2, the limit adjusting mechanism comprises: a limit convex plate 14 fixed on one side surface of the adjusting connecting rod 9; an arc-shaped limit toothed plate 13 inserted into a gap between the limit convex plate 14 and the adjusting link 9; and the limiting clamping plate 12 is rotatably arranged on the other side surface of the adjusting connecting rod 9, the rotating shaft of the limiting clamping plate 12 is perpendicular to the adjusting connecting rod 9, and the limiting clamping plate 12 can rotate to enter or be separated from the teeth of the arc-shaped limiting toothed plate 13. The limit convex plate 14 can be fixedly connected to the adjusting connecting rod 9 through bolts. The limiting clamping plate 12 can be rotatably arranged on the other side surface of the adjusting connecting rod 9 through a pin shaft and cotter pin structure. Based on this technical scheme, rotate to get into or break away from between the tooth of arc limit tooth plate through spacing cardboard, the function of playing spacing and release that just can be convenient. After releasing, the clearance of the threshing concave plate can be adjusted.
In one embodiment, as shown in fig. 1, 2 and 3, the concave surface of the arc-shaped limit tooth plate 13 faces the second rotating shaft 2, and the teeth of the arc-shaped limit tooth plate 13 are located on the convex surface thereof.
In one embodiment, as shown in fig. 1, 2 and 3, the arc-shaped limit tooth plate 13 is rotatably mounted on the mounting seat 16. The arc-shaped limit tooth plate 13 can be rotatably mounted on the mounting base 16 at the end thereof through a structure of a pin shaft and a cotter pin.
In one embodiment, as shown in fig. 1, 2, and 3, the handle mechanism comprises: the operating handle 1 is a hollow tube structure fixed on the adjusting connecting rod 9, a button rod 18 arranged along the length direction of the adjusting connecting rod 9 is sleeved in the operating handle, the end part of the button rod 18 is provided with a hook structure, and the hook structure penetrates through and hooks one end of the limiting clamping plate 12; and a spring 17 having hook portions at both ends thereof respectively penetrating and hooking the end portion of the adjusting link 9 and a hook structure of the button lever 18. Based on this technical scheme, can be convenient through pushing down the button pole, let spacing cardboard get into or break away from between the tooth of the spacing pinion rack of arc to play spacing and the effect of release.
In one embodiment, the bar 1 is provided separately. Can be conveniently operated by human hands.
In one embodiment, the joystick 1 is provided on an electrically controlled hydraulic ram or an electrically controlled cylinder thereof. Based on this technical scheme, be convenient for automatic operation.
In a particular embodiment, the combine harvester comprises a threshing concave adjustment device. The first rotating shaft 5 of the threshing concave plate adjusting device is rotationally connected to the vehicle body. The second rotating shaft 2 of the threshing concave plate adjusting device is rotationally connected to the vehicle body. The mounting seat 16 of the threshing concave plate adjusting device is fixed on the vehicle body.
The working principle of the utility model is as follows:
increasing the clearance: pressing a button rod on the operating handle, rotating the limiting clamping plate around the pin shaft to separate from the arc-shaped limiting toothed plate, lowering the operating handle to a proper position, rotating the second rotating shaft, rotating the rotating arm anticlockwise, rotating the first rotating shaft sleeve clockwise to drive each concave plate pull rod to move downwards, keeping the concave plate away from the roller, loosening the button rod, enabling the limiting clamping plate to fall into the arc-shaped limiting toothed plate for limiting, and finishing the increase and adjustment of the gap of the concave plate;
and (3) reducing the clearance: pressing a button rod on the operating handle, rotating the limiting clamping plate around the pin shaft to separate from the arc-shaped limiting toothed plate, pulling the operating handle upwards to a proper position, rotating the second rotating shaft, rotating the swing arm clockwise, rotating the first rotating shaft sleeve anticlockwise, moving each concave plate pull rod upwards, enabling the concave plate to be close to the roller, loosening the button rod, enabling the limiting clamping plate to fall into the toothed plate clamping groove to be limited, and reducing and adjusting the gap between the concave plates.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; the utility model can be smoothly implemented by the ordinary technicians in the industry according to the drawings and the above description; however, those skilled in the art should understand that changes, modifications and variations made by the above-described technology can be made without departing from the scope of the present invention, and all such changes, modifications and variations are equivalent embodiments of the present invention; meanwhile, any changes, modifications, evolutions, etc. of equivalent changes made to the above embodiments according to the essential technology of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (10)
1. A threshing concave adjusting device is characterized by comprising:
a first rotating shaft (5) arranged horizontally
The threshing concave plate (8) is arranged in parallel to the first rotating shaft (5), the two ends of one side of the threshing concave plate (8) are fixedly mounted at one end of two adjusting pull rods through two first concave plate pull rods (6), the two ends of the other side of the threshing concave plate (8) are fixedly mounted at one end of the other two adjusting pull rods through two second concave plate pull rods (7), the other end of each adjusting pull rod is rotatably connected to the periphery of the first rotating shaft (5), and the concave surface of the threshing concave plate (8) faces the first rotating shaft (5);
and the adjusting mechanism is used for driving the first rotating shaft (5) to rotate.
2. The threshing concave adjustment device of claim 1, wherein the adjustment mechanism comprises:
the second rotating shaft (2) is horizontally arranged and is higher than the first rotating shaft (5);
a first rotating shaft sleeve (4) fixedly sleeved on the first rotating shaft (5) and provided with a connecting arm;
one end of each transmission pull rod (3) is rotatably connected with one end of a rotating arm (15), the other end of each transmission pull rod is rotatably arranged on the connecting arm of the first rotating shaft sleeve (4), the other end of each adjustment pull rod is rotatably connected to the periphery of the first rotating shaft sleeve (4), and the other end of each rotating arm (15) is fixedly arranged on the second rotating shaft (2);
and the adjusting mechanism is used for driving the second rotating shaft (2) to rotate so as to drive the first rotating shaft (5) to rotate.
3. The threshing pit adjustment device of claim 2, wherein the adjustment mechanism comprises:
the adjusting connecting rod (9) is fixedly connected with a second rotating shaft sleeve (10) at one end, and the second rotating shaft sleeve (10) is fixedly arranged on the second rotating shaft (2);
the handle mechanism is used for driving the adjusting connecting rod (9) to rotate and is matched with the limiting adjusting mechanism to limit the rotation of the adjusting connecting rod (9).
4. The threshing concave adjustment apparatus of claim 3, wherein the spacing adjustment mechanism comprises:
a limit convex plate (14) fixed on the adjusting connecting rod (9);
an arc-shaped limit toothed plate (13) inserted into a gap between the limit convex plate (14) and the adjusting connecting rod (9);
and the limiting clamping plate (12) is rotatably arranged on the adjusting connecting rod (9), the rotating shaft of the limiting clamping plate is perpendicular to the adjusting connecting rod (9), and the limiting clamping plate (12) can rotate to enter or separate from the teeth of the arc-shaped limiting toothed plate (13).
5. The threshing plate pit adjustment apparatus according to claim 4, wherein: the concave surface of arc limit tooth board (13) towards second pivot (2), the tooth of arc limit tooth board (13) is located on its convex surface.
6. The threshing concave adjustment device of claim 4, wherein: the arc-shaped limit toothed plate (13) is rotatably mounted on the mounting seat (16).
7. The threshing pan adjustment device of claim 4, wherein the handle mechanism includes:
the operating handle (1) is a hollow tube structure fixed on the adjusting connecting rod (9), a button rod (18) arranged along the length direction of the adjusting connecting rod (9) is sleeved in the operating handle (1), the end part of one end of the button rod (18) is provided with a hook structure, the hook structure penetrates through and hooks one end of the limiting clamping plate (12), and the other end of the button rod (18) is connected in the operating handle (1) in a sliding manner;
and a spring (17) having hook portions at both ends thereof respectively penetrating and hooking the end portion of the adjusting link (9) and the hook structure of the button lever (18).
8. The threshing plate pit adjustment apparatus of claim 7, wherein: the control handle (1) is arranged on the electric telescopic structure.
9. The threshing concave adjustment device according to any one of claims 1 to 8, wherein:
one end of each of the two first concave plate pull rods (6) is fixedly arranged on the threshing concave plate (8) and is of a fixed-length structure or a length-adjustable structure;
one end of each of the two second concave plate pull rods (7) is fixedly arranged on the threshing concave plate (8) respectively, and the threshing concave plate is of a fixed-length structure or a length-adjustable structure.
10. A combine harvester comprises a vehicle body, and is characterized in that: further comprising the threshing concave adjustment device of any one of claims 1 to 9, wherein the first rotating shaft (5) is rotatably connected to the body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221541390.XU CN218125603U (en) | 2022-06-20 | 2022-06-20 | Threshing concave plate adjusting device and combine harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221541390.XU CN218125603U (en) | 2022-06-20 | 2022-06-20 | Threshing concave plate adjusting device and combine harvester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218125603U true CN218125603U (en) | 2022-12-27 |
Family
ID=84577762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221541390.XU Active CN218125603U (en) | 2022-06-20 | 2022-06-20 | Threshing concave plate adjusting device and combine harvester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218125603U (en) |
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2022
- 2022-06-20 CN CN202221541390.XU patent/CN218125603U/en active Active
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