Aftershave composition

Abstract

A cleaning assembly (26) for a combine harvester (10) is provided, the cleaning assembly comprising: a vibrating floor conveyor (48) for conveying crop, the vibrating floor conveyor being mobilised for vibratory movement and supported at a downstream end thereof by a hanger (60) on a cleaning chamber (66); at least one sieve (42, 44) disposed in the cleaning chamber (66), the at least one sieve being mobilised for vibratory movement and being exposed to an airflow generated by a fan (40); and a rotatable cross auger (56) disposed downstream of the vibrating floor conveyor (48) and upstream of the sieve (42, 44) for cross conveyance of the crop, the auger comprising a shaft (62) and conveyor auger flighting (64) attached to the shaft, wherein the hanger (60) is supported on the shaft (62) of the cross auger (56).

Description

Technical Field

[0001] This invention relates to a cleaning assembly for combine harvesters. Background Technology

[0002] Combine harvesters are used to harvest grains. The above-ground parts of plants (such as soybeans, wheat, or oats) are cut, harvested, or stripped, or the fruit stalks of plants such as corn or sunflowers are separated and fed to threshing and separating devices to separate the grains from the rest of the crop. After the threshing and separating process, impurities such as straw grains and chaff remain in the grains. Therefore, the mixture of grains and impurities obtained during threshing and separating is cleaned via a conveying device, which typically includes upper and lower sieves and optionally a pre-sieve.

[0003] The sieve is typically suspended on a front hanger and a rear hanger within the cleaning shoe and moved by means of an eccentric drive, for example, as shown in EP 3498078 A1. Thus, the sieve is configured to swing back and forth, moving forward and backward and up and down along an elliptical or circular path. Additionally, the sieve is exposed to an airflow from below. This is achieved in such a way that the mixture is periodically thrown upwards onto the sieve (at the upper reversal point of the track) and falls back onto the sieve after covering the parabolic trajectory of the throw. Due to the airflow and the impact on the sieve after the throw, heavier grains are separated from lighter impurities.

[0004] Conveying devices used to transport harvested material from threshing and separating units for cleaning include auger bottom conveyors (see DE 102018219864 B3) and / or vibrating floor conveyors, the latter also configured to move back and forth in a swivel motion similar to a sieve (e.g., see EP 3498078 A1 or EP3556201 A1). For this purpose, the vibrating floor conveyor is suspended on rotating hangers, at least one of which is actively configured to move vibratingly via a drive mechanism.

[0005] It is also proposed to install a transverse auger conveyor at the entrance of the cleaning assembly to transport crops to the left or right (uphill) when necessary (e.g., when traveling on a slope) so as to supply the harvested material to the cleaning chamber as evenly as possible across the width of the cleaning chamber (GB 922907 A, EP 3501259A1). Summary of the Invention

[0006] Task

[0007] Using EP 3501259 A1 Figure 2 As can be seen from the example, in the prior art, separate bearings are provided on the cleaning chamber for the arm used to suspend the vibrating base plate conveyor and on the other hand for the arm used to suspend the horizontal screw conveyor. Therefore, a certain amount of work is required to support the two components separately on the cleaning chamber of the combine harvester.

[0008] The present invention itself has set the goal of reducing this kind of work.

[0009] Solution

[0010] A cleaning assembly for a combine harvester is provided, comprising: a vibrating bottom plate conveyor for conveying crops, the vibrating bottom plate conveyor being configured to move vibratingly and rotatably mounted on a cleaning chamber at its downstream end by a hanger; at least one screen disposed in the cleaning chamber, the screen being adjustable to move vibratingly and being able to be loaded with an airflow by a blower; and a transverse screw conveyor located downstream of the vibrating bottom plate conveyor and upstream of the screen, the transverse screw conveyor being driven for lateral conveying of crops, the transverse screw conveyor including a shaft and conveyor coils attached to the shaft. The hanger is mounted on the shaft of the transverse screw conveyor.

[0011] In this way, the shaft not only performs the task of holding the conveyor's spiral blades of the horizontal screw conveyor, but also supports the hangers. Therefore, it is no longer necessary to support the hangers separately on the cleaning chamber. Attached Figure Description

[0012] The accompanying drawings illustrate embodiments of the invention, which are described in more detail below. The drawings show: Figure 1 This is a schematic side view of a combine harvester. Figure 2 yes Figure 1 A perspective view of the cleaning assembly of a combine harvester from the front left; and Figure 3 It is along Figure 2 The cross-sectional view taken from line 3-3. Detailed Implementation

[0013] Figure 1A self-propelled harvester 10 in the form of a combine harvester 10 with a chassis 12 supported on the ground and moved by driven front wheels 14 and steerable rear wheels 16 is shown. The wheels 14, 16 are rotated by means of a drive device (not shown) to move the combine harvester 10, for example, across a field to be harvested. Hereinafter, directions such as forward and backward refer to the direction of travel V of the combine harvester 10 during harvesting operations. Figure 1 The middle direction is to the left.

[0014] A harvesting attachment 18, in the form of a cutting platform, is detachably attached to the front end of the combine harvester 10 to harvest crops in the form of grain or other threshing stalks from the field at the harvester, and to feed the crop upward and backward through the feederhouse assembly 20 to the axial threshing unit 22. The mixture containing grain and impurities passes through the threshing basket and grate in the axial threshing unit 22 and enters the cleaning assembly 26. Through the cleaning assembly 26, the cleaned grain is fed to the grain elevator by means of a grain screw, which transports the grain to the grain bin 28. The cleaned grain can be unloaded from the grain bin 28 by an unloading system having a horizontal screw conveyor 30 and a discharge conveyor 32. These systems are driven by an internal combustion engine and controlled by an operator from the cab 34.

[0015] The cleaning assembly 26 includes an upper screen 42 and a lower screen 44 in a manner known per se. Airflow is supplied by a blower 40 to the upper and lower screens, passing through the screens 42, 44 to the rear and upward. Grain (threshed) in the front region of the axial threshing unit 22 is conveyed rearward by a front vibrating bottom plate conveyor 46. Separated grain leaving the crop in the rear region of the axial threshing unit 22 is conveyed forward by a rear vibrating bottom plate conveyor 48. Grain conveyed by the vibrating bottom plate conveyors 46, 48 is fed to the upper screen 42 via another vibrating bottom plate conveyor 58, which may also be designed as a pre-screen (chaff screen) 58. The screen aperture size and the speed of the blower 40 can be changed in a known manner via automatic cleaning settings or by an operator from the cab 34.

[0016] The rear vibrating base plate conveyor 48 is suspended on both sides by the front hanger 60 and the rear hanger 50. The hangers 60 and 50 are each connected to the cleaning chamber 66 via a freely rotatable end on the frame of the vibrating base plate conveyor 48 (see [link]). Figure 2The other end is supported and can rotate freely. The rear hanger 50 is rigidly connected to the lever 54, which is in turn connected to a drive mechanism (not shown) that sets the lever 54 by moving such that the rear hanger 50 continuously rotates about itself within an angular range centered on the bearing point 52, wherein the rear hanger is supported by the cleaning chamber. Further details regarding the installation and drive of the rear vibrating base plate conveyor 48 can be found in EP 3498078 A1, the disclosure of which is included in this document by reference.

[0017] A transverse screw conveyor 56 is attached below the front end of the rear vibrating bottom plate conveyor 48 (and thus downstream of the vibrating bottom plate conveyor 48 and upstream of the pre-screen 58 or upper screen 42). This transverse screw conveyor is used to improve the lateral distribution of the harvested material in the cleaning chamber. The transverse screw conveyor 56 includes a central shaft 62 and one or more conveyor screw blades 64 attached to the central shaft. Based on the sensitively detected lateral tilt of the combine harvester 10 and / or the sensitively detected distribution of the grain across the width of the cleaning assembly 26, the motor 68 (see...) can be used to... Figure 3 The rotation direction and speed of the horizontal screw conveyor 56 driven by the ) are automatically determined in a manner known in itself (see US 3581746 A, EP 3501259A1) to balance the distribution of crops at the inlet of the cleaning assembly 26.

[0018] The shaft 62 of the horizontal screw conveyor 56 has a central groove at its outer end, where it is connected to a separate shaft section 78. This shaft section 78 extends within the wall of the cleaning chamber 66 and is driven at its end by a motor 68. The shaft section 78 is bolted to the shaft 62 by a screw 80 extending axially within the shaft section 78, and is preferably additionally rotatably fixed thereto by toothing. Since the dimensions of the shaft 62 correspond to the distance between the sidewalls of the cleaning chamber 66, this two-part arrangement of the shaft 62 and shaft section 78 facilitates the installation of the shaft 62 and thus allows for easy installation and removal.

[0019] like Figure 1 Instructed and Figure 2 and Figure 3As shown in more detail, the shaft 62 of the horizontal screw conveyor 56 also serves to support the front hanger in its outer end region. This shaft is rotatably supported in the region of the shaft section 78 by means of a first bearing 70 on the wall of the cleaning chamber 66 and by means of clamps 88 and bolts 90. For this purpose, the outer end region of the shaft 62 does not have the conveyor screw blades 64 and accommodates a second bearing 72 on which the hanger 60 is supported. The other end of the hanger 60 is connected to a mounting plate 76 via another bearing 74, which in turn is connected to the rear vibrating base plate conveyor 48.

[0020] Axial fixation of the second bearing 72 on the shaft 62 can be provided by locking rings 82, 84 on both sides of the second bearing 72, which are spring-loaded onto the shaft 62 and the second bearing 72 abuts against the locking rings. Grooves for the locking rings 82, 84 to enter can also be provided within the shaft 62. Furthermore, a ring 86 can be installed on the shaft 62 between the second bearings 72, against which the second bearing 72 abuts and is thus axially fixed.

[0021] On the other side ( Figure 3 (not shown in the image), shaft 62 can be coupled with... Figure 3 It is supported in a similar manner, however, no motor 68 is provided there. Furthermore, the hanger 60 is... Figure 3 It is supported there in the manner shown.

[0022] In this way, shaft 62 is used not only to support the conveyor's helical blades 64, but also to support the hanger 60, which reduces the work required for attaching the vibrating base plate conveyor 48.

[0023] It should be noted that many modifications to the illustrated embodiment are possible. For example, the motor 68 can be replaced with a drive chain that drives the movable parts of the cleaning assembly 26 (and, if necessary, a transmission for reversing the rotation direction and a switchable clutch) to achieve control of the horizontal screw conveyor 56 as described above.

[0024] Going further, Figure 2 A transverse screw conveyor 56 is shown, comprising two oppositely oriented conveyor screw blades 64 on its sides. Thus, crops are fed separately to the center and delivered there, allowing the transverse screw conveyor 56 to be continuously driven by a motor 68 or as described in the previous paragraphs. Alternatively, a single conveyor screw blade 64 extending across the entire width can be used, which is controlled based on the lateral slope or material distribution as described above. Furthermore, two separately driven conveyor screw blades 64 can be used on either side of the transverse screw conveyor 56, as described in EP 3501259 A1.

Claims

1. A cleaning assembly (26) for a combine harvester (10), the cleaning assembly comprising: A vibrating bottom plate conveyor (48) for conveying crops, the vibrating bottom plate conveyor being adjustable to vibrate movement and rotatably supported on a cleaning chamber (66) by a hanger (60) at the downstream end of the vibrating bottom plate conveyor; At least one screen (42, 44) is installed in the cleaning chamber (66), and the at least one screen is capable of being loaded with an airflow by a blower (40); as well as A rotatable horizontal screw conveyor (56) is provided downstream of the vibrating base plate conveyor (48) and upstream of the screens (42, 44) for transverse conveying of the crop. The horizontal screw conveyor (56) includes a shaft (62) and attached conveyor screw blades (64). The feature is that the hanger (60) is supported on the shaft (62) of the horizontal screw conveyor (56).

2. The cleaning assembly (26) according to claim 1, wherein, The vibrating base plate conveyor (48) is configured to feed the crop discharged from the separation device forward and to the cleaning assembly (26).

3. The cleaning assembly (26) according to claim 2, wherein, The horizontal screw conveyor (56) is positioned below the front distribution edge of the vibrating base plate conveyor (48).

4. The cleaning assembly (26) according to any one of claims 1 to 3, wherein, The shaft (62) is releasably connected to an outer shaft section (78) extending through the sidewall of the cleaning chamber (66) and is rotatably supported in the outer shaft section by a first bearing (70).

5. The cleaning assembly (26) according to claim 4, wherein, The motor (68) for driving the shaft (62) is connected to the outer shaft section (78) on the outside of the cleaning chamber (66).

6. The cleaning assembly (26) according to claim 1, wherein, On the outside of the second bearing (72) for rotatably supporting the hanger (60) on the shaft (62), a locking ring (82, 84) is installed and connected to the shaft (62), the locking ring being used to axially fix the hanger (60) to the shaft (62).

7. The cleaning assembly (26) according to claim 6, wherein, Between the second bearings (72), a ring (86) is mounted to the shaft (62) for axially securing the second bearings (72) to the shaft (62).

8. The cleaning assembly (26) according to claim 1, wherein, The rotational speed and direction of the motor (68) used to drive the shaft (62) can be automatically controlled based on the sensed lateral tilt of the combine harvester (10) and / or the sensed distribution of grain across the width of the cleaning assembly (26).

9. The cleaning assembly (26) according to claim 1, wherein, The horizontal screw conveyor (56) includes two oppositely oriented conveyor screw blades (64) on its sides, or a single conveyor screw blade (64) over its entire width, or two separately driven conveyor screw blades (64) on its sides.

10. A combine harvester (10) having a cleaning assembly (26) according to any one of claims 1 to 9.

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