Header

Abstract

The utility model provides a header, which comprises a header frame, a cutting table, a cutting table base, a cutting table base and a cutting table frame, and is characterized in that the cutting table frame comprises header stand columns; the swing assembly comprises a swing arm and a connecting plate, and the connecting plate is arranged in front of the header stand column; the movable cutter assembly comprises a movable cutter holder and a cutter strip, the movable cutter holder is connected with the connecting plate, the movable cutter holder is connected with the connecting plate through a first connecting shaft, the first connecting shaft is perpendicular to the swing arm, and a first limiting piece is arranged at one end of the first connecting shaft; the second limiting piece is fixed to the header stand column, the second limiting piece is arranged above the connecting plate, the second limiting piece comprises a limiting part, the limiting part is arranged above the first limiting piece, and a gap is reserved between the limiting part and the first limiting piece. The size of the gap between the limiting part and the bearing is adjusted through the adjusting hole, collision between the blade and the blade protector is avoided, and the service life of the moving blade assembly is prolonged.

Description

Technical Field

[0001] The utility model relates to a harvester, in particular to a harvesting platform. Background Art

[0002] In the prior art, when the harvester is working, the moving blade assembly reciprocates at high speed, the blade bar jumps upward, and when the moving blade on the blade bar jumps upward too far, there is a risk of collision with the blade guard, causing the blade bar, the moving blade and the blade guard to break, affecting the normal operation of the harvester. Therefore, it is necessary to provide a header to overcome the above defects. Utility Model Content

[0003] The utility model aims to provide a cutting platform.

[0004] According to one aspect of the utility model, there is provided a header, comprising:

[0005] A header frame, the header frame comprising a header column located at the front of the header frame and extending from top to bottom;

[0006] A swing assembly, the swing assembly comprising a swing arm and a connecting plate connected to the swing arm, the connecting plate being arranged in front of a header column;

[0007] A movable knife assembly, the movable knife assembly comprising a movable knife seat and a knife strip connected to the movable knife seat, the movable knife seat is connected to a connecting plate, the movable knife seat is provided with a first connecting shaft, the connecting plate is connected to the first connecting shaft, the first connecting shaft is perpendicular to the swing arm, and a first limiter is provided at one end of the first connecting shaft;

[0008] The second limiting member is fixed to the cutting platform column, the second limiting member is arranged above the connecting plate, the second limiting member includes a limiting portion extending parallel to the connecting plate, the limiting portion is arranged above the first limiting member, and a gap is left between the limiting portion and the first limiting member.

[0009] Preferably, the second limiting member includes a main body portion fixed to the header column and an extending portion extending perpendicularly to the main body portion, the extending portion extends toward one side of the connecting plate, and the limiting portion is arranged at the bottom of the extending portion.

[0010] Preferably, the first limiting member is configured as a bearing, and a gap between the first limiting member and the limiting portion is less than or equal to 1 mm.

[0011] Preferably, the swing assembly also includes an input shaft arranged at the rear end of the cutting platform frame, a swing joint arranged at one end of the input shaft, and a swing shaft connected to the swing joint, the swing joint is located at the rear end of the swing shaft, and the front end of the swing shaft is fixedly connected to the swing arm.

[0012] Preferably, the cutting platform column is provided with a swing shaft seat, the second limit piece and the swing shaft seat are respectively fixed on two adjacent side surfaces of the cutting platform column, the swing shaft is arranged above the connecting plate, the upper end of the swing arm is fixed to the swing shaft, and the lower end of the swing arm is rotatably connected to the connecting plate.

[0013] Preferably, the main body is provided with an adjustment hole extending from top to bottom, and a reinforcing rib is provided between the main body and the extension portion.

[0014] Preferably, the cutting platform frame also includes an upper longitudinal beam and a lower cross beam, the upper longitudinal beam is arranged at the top of the cutting platform column, the upper longitudinal beam extends backward from the top of the cutting platform column, the lower cross beam is arranged at the bottom of the cutting platform column, and the lower cross beam extends in the left and right direction of the cutting platform frame.

[0015] Preferably, the movable knife assembly further comprises a blade guard fixed at the front end of the lower cross beam, the blade reciprocates in the blade guard, and the connecting plate is located above the blade guard.

[0016] Preferably, the limiting portion is arranged on the front side of the connecting plate, and the limiting portion and the connecting plate are arranged in a non-contact manner.

[0017] Preferably, the length of the limiting portion is greater than or equal to the stroke of the swing arm.

[0018] Compared with the prior art, the cutting platform provided by the utility model has the following beneficial effects:

[0019] The clearance between the limit part and the bearing can be adjusted through the adjustment hole to ensure that the upward jump distance of the movable knife assembly will not be too large when working, avoid collision between the knife blade and the blade guard, and increase the service life of the movable knife assembly; the structure is compact and the layout is reasonable, which is convenient for after-sales maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0021] Figure 1 It is a partial enlarged view of the cutting platform of the utility model;

[0022] Figure 2 It is a side view of the cutting platform of the utility model;

[0023] Figure 3 It is a front view of the cutting platform of the utility model;

[0024] Figure 4 It is a three-dimensional diagram of the header frame of the utility model;

[0025] Figure 5 It is a three-dimensional diagram of the first limiting member of the utility model. DETAILED DESCRIPTION

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0028] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0029] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0030] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0031] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0032] See also Figure 1 and Figure 4The utility model discloses a cutting platform, including a cutting platform frame 1, a swing assembly 2, a moving knife assembly 3, a first limiter 4 and a second limiter 5. The cutting platform frame 1 includes a cutting platform column 11, an upper longitudinal beam 12 and a lower cross beam 13. The moving direction of the harvester is defined as the front, and the cutting platform column 11 is located at the front of the cutting platform frame 1 and extends from top to bottom. The upper longitudinal beam 12 extends backward from the top of the cutting platform column 11. The lower cross beam 13 extends rightward from the bottom of the cutting platform column 11 in a horizontal direction.

[0033] See also Figure 1 and Figure 2 The swing assembly 2 includes an input shaft 21, a swing joint 22, a swing shaft 23, a swing arm 24 and a connecting plate 25. The input shaft 21 is arranged at the rear end of the cutting platform frame 1. The swing joint 22 is arranged at the left end of the input shaft 21. The swing shaft 23 and the input shaft 21 are connected through the swing joint 22. The rotation of the input shaft 21 can drive the swing shaft 23 to swing back and forth through the swing joint 22. The upper end of the swing arm 24 is fixedly connected to the swing shaft 23, and the lower end of the swing arm 24 is rotatably connected to the connecting plate 25. The left end surface of the cutting platform column 11 is provided with a swing shaft seat 231 for fixing the swing shaft 23. The swing arm 24 is arranged at the front end of the swing shaft 23, and the swing joint 22 is arranged at the rear end of the swing shaft 23.

[0034] See also Figure 1 and Figure 3 The movable knife assembly 3 includes a movable knife seat 31, a knife strip 32 and a blade guard 33. The movable knife seat 31 and the connecting plate 25 are connected by a first connecting shaft 41. The first limit member 4 is arranged at the front end of the first connecting shaft 41. In this embodiment, the first limit member 4 is arranged as a bearing. The knife strip 32 is connected to the movable knife seat 31, and the knife strip 32 is arranged in the blade guard 33. The first connecting shaft 41 and the swing arm 24 are perpendicular to each other. The swing arm 24 drives the movable knife seat 31 to reciprocate through the connecting plate 25, thereby driving the knife strip 32 to cut back and forth. The blade guard 33 is fixed to the lower crossbeam 13. The swing arm 24, the connecting plate 25 and the movable knife seat 31 are all arranged in front of the cutting table column 11.

[0035] See also Figure 5 The second limiting member 5 includes a limiting portion 51, a main body 52 and an extension portion 53. The second limiting member 5 is located above the connecting plate 25. The main body 52 is fixed to the front end surface of the cutting platform column 11. The extension portion 53 extends forward perpendicular to the main body 52. ​​The limiting portion 51 is arranged at the bottom of the front end of the extension portion 53. The limiting portion 51 is arranged directly above the first limiting member 4. A gap of no more than 1 mm is left between the limiting portion 51 and the first limiting member 4. The connecting plate 25 is arranged between the limiting portion 51 and the main body 52. ​​The limiting portion 51 extends parallel to the connecting plate 25, and the length of the limiting portion 51 is not less than the swing stroke of the swing arm 24.

[0036] The main body 52 is also provided with an adjustment hole 521 extending from top to bottom. A reinforcing rib 54 is provided between the main body 52 and the extension 53. The second stopper 5 can adjust the distance between the second stopper 5 and the first stopper 4 up and down along the adjustment hole 521. The connecting plate 25 is located above the blade guard 33. The stopper 51 is provided at the front side of the connecting plate 25, and the stopper 51 and the connecting plate 25 are arranged in a non-contact manner.

[0037] It will be apparent to those skilled in the art that various modifications and variations can be made to the above exemplary embodiments of the present invention without departing from the spirit and scope of the present invention. Therefore, it is intended that the present invention covers modifications and variations of the present invention that fall within the scope of the appended claims and their equivalent technical solutions.

Claims

1. A header, characterized in that: include: A header frame, the header frame comprising a header column located at the front of the header frame and extending from top to bottom; A swing assembly, the swing assembly comprising a swing arm and a connecting plate connected to the swing arm, the connecting plate being arranged in front of a header column; A movable knife assembly, the movable knife assembly comprising a movable knife seat and a knife strip connected to the movable knife seat, the movable knife seat is connected to a connecting plate, the movable knife seat is provided with a first connecting shaft, the connecting plate is connected to the first connecting shaft, the first connecting shaft is perpendicular to the swing arm, and a first limiter is provided at one end of the first connecting shaft; The second limiting member is fixed to the cutting platform column, the second limiting member is arranged above the connecting plate, the second limiting member includes a limiting portion extending parallel to the connecting plate, the limiting portion is arranged above the first limiting member, and a gap is left between the limiting portion and the first limiting member.

2. The header according to claim 1, characterized in that: The second limiting member includes a main body portion fixed to the header column and an extension portion extending perpendicularly to the main body portion, the extension portion extends toward one side of the connecting plate, and the limiting portion is arranged at the bottom of the extension portion.

3. The header according to claim 2, characterized in that: The first limiting member is configured as a bearing, and a gap between the first limiting member and the limiting portion is less than or equal to 1 mm.

4. The header according to claim 3, characterized in that: The swing assembly also includes an input shaft arranged at the rear end of the cutting platform frame, a swing joint arranged at one end of the input shaft and a swing shaft connected to the swing joint, the swing joint is located at the rear end of the swing shaft, and the front end of the swing shaft is fixedly connected to the swing arm.

5. The header according to claim 4, characterized in that: The cutting platform column is provided with a swing shaft seat, the second limit piece and the swing shaft seat are respectively fixed on two adjacent side surfaces of the cutting platform column, the swing shaft is arranged above the connecting plate, the upper end of the swing arm is fixed to the swing shaft, and the lower end of the swing arm is rotatably connected to the connecting plate.

6. The header according to claim 5, characterized in that: The main body is provided with an adjustment hole extending from top to bottom, and a reinforcing rib is provided between the main body and the extension part.

7. The header according to claim 6, characterized in that: The cutting platform frame also includes an upper longitudinal beam and a lower cross beam, wherein the upper longitudinal beam is arranged at the top of the cutting platform column and extends backward from the top of the cutting platform column, and the lower cross beam is arranged at the bottom of the cutting platform column and extends in the left and right direction of the cutting platform frame.

8. The header according to claim 7, characterized in that: The movable knife assembly also includes a blade guard fixed at the front end of the lower cross beam, the knife strip reciprocates in the blade guard, and the connecting plate is located above the blade guard.

9. The header according to claim 8, characterized in that: The limiting portion is arranged on the front side of the connecting plate, and the limiting portion and the connecting plate are arranged in a non-contact manner.

10. The header according to claim 9, characterized in that: The length of the limiting portion is greater than or equal to the stroke of the swing arm.

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