阅读说明：本技术 用于作物的谷穗升运机的支承轨 (Supporting rail of ear elevator for crops ) 是由 F·霍勒 于 2020-04-25 设计创作，主要内容包括：本发明涉及一种用于收获的作物的作物升运机的支承杆,具有主延伸方向,其中设计为滑动件的部段设置在支承杆的第一端和第二端之间,并且设计为滑动件的部段设置成通过外表面在土壤上方引导。设计为滑动件的部段具有支柱并且该支柱在主延伸方向上在与外表面相对的内表面上延伸。本发明还涉及一种用于收割机的剪割器的作物升运机,具有秸秆提升器和承载秸秆提升器的支承杆。(The invention relates to a support bar of a crop elevator for harvested crops, having a main direction of extension, wherein a section designed as a slide is arranged between a first end and a second end of the support bar and the section designed as a slide is arranged to be guided over the soil by an outer surface. The section designed as a slide has a strut and the strut extends in the main direction of extension on an inner surface opposite the outer surface. The invention also relates to a crop lift for a shearer of a harvester, having a straw lifter and a support rod carrying the straw lifter.)

1. Support rail (5) of a spike elevator for crops, having a main direction of extension (X), wherein a section (12) formed as a slide is arranged between a first end (8) and a second end (9) of the support rail, wherein the section formed as a slide is configured to be guided over the ground by its outer side (15), wherein the section formed as a slide (12) comprises a rod (14), wherein the rod extends in the main direction of extension (X) on an inner side (18) opposite to the outer side (15).

2. A support rail according to claim 1, characterized in that the rod (14) is connected to the section (12) formed as a slide on the inner side (18).

3. A support rail according to one of the preceding claims, characterized in that the rod (14) is made of a different material than the section (12) formed as a slide.

4. A support rail according to one of the preceding claims, characterized in that the rod (14) is inserted into a recess of the section (12) formed as a slide.

5. A support rail according to claim 4, characterized in that the rod (14) projects on the inner side (18) beyond the section (12) formed as a slide.

6. A support rail according to one of the preceding claims, characterized in that the lever (14) is formed in the shape of a rib, wherein the lever and the section (12) formed as a slide have a T-shaped cross section in a section transverse to the main direction of extension (X).

7. A support rail according to one of the preceding claims, characterized in that the lever (14) has a curvature along the main direction of extension (X) which corresponds to the curvature of the section (12) formed as a slide.

8. A support rail according to one of the preceding claims, characterized in that the lever (14) has a base plate (16) which is connected to the section (12) formed as a slide.

9. A support rail according to one of the preceding claims, characterized in that the section (12) formed as a slide has a flank (17), wherein the flank is angled towards the inner side (18).

10. A support rail according to one of the preceding claims, characterized in that the section (12) formed as a slide has, in addition to the lever (14), on the inner side (18) at least one further lever extending in the main direction of extension (X).

11. Ear elevator for a cutting unit of a harvesting machine, comprising a straw lifter (10) and a support rail (5) according to one of the preceding claims supporting the straw lifter.

12. The ear elevator according to claim 11, characterized in that the straw lifter (10) is arranged at the second end (9) of the support rail, wherein the section (12) formed as a slide is adjacent to the second end, and wherein the rod (14) extends to the straw lifter.

13. Crop elevator according to claim 12, characterized in that the cross-section of the straw lifter (10) has a V-shaped profile, wherein the rod (14) extends into the V-shaped profile.

Technical Field

The following disclosure relates to a support rail for an ear elevator for crops, which support rail has a main direction of extension, wherein a section formed as a slide is arranged between a first end and a second end of the support rail, wherein the section formed as a slide is configured to be guided over the ground by its outer side, and to an ear elevator for a cutting unit of a harvesting machine, which has a straw lifter and a support rail carrying the straw lifter.

Background

In known harvester harvesting units, harvesting fingersDistributed along the cutter bar, which guides the cutter bar and forms secondary blades for the blades. In order to be able to safely harvest kinked or fallen stalks, an ear elevator is used to lift the stalks. The ear elevator typically has a support rail and a straw lifter. The support rails are used to attach the ear elevator to the shearer rod of the shearer and guide the straw lifters, lifting the straw material on the top side thereof. When operating the harvester, the supporting rails must be guided a short distance above the ground in order to lift the kinked or fallen straw as completely and reliably as possible using the straw lifter. The section of the support rail closest to the ground slides almost permanently over the ground like a slide. Due to the increased operating speed of the harvester and the unevenness of the ground, the support rails are subjected to considerable wear.

DE 10123248C 1 describes a grain elevator in which the support rail is made rigid by means of profiled sections in the region between the second end and the holder. The section directly at the second end has been sufficiently reinforced by fastening the straw lifter to the support rail itself so that the profile extends to the adjacent section. These are in particular a slipper-like section, by means of which the support rail rests on the ground and the adjoining sections extend towards the holder. For this purpose, the cross section of the support rail in this section is curved.

Known from publication WO 2011/143681 a1 is an ear elevator, in which a surface is arranged in front of the lower surface side of the ear elevator, which is configured to frequently slide on the ground during operation, wherein this surface is provided with a wear-resistant coating of a material different from that of the support rail, wherein the wear-resistant coating is formed by coating portions which are interchangeably mounted on the ear elevator.

Disclosure of Invention

The aim is to improve a support rail for a grain elevator with respect to at least one of wear performance, flexural rigidity and torsional rigidity by means of a profile which is increased compared to the prior art.

This object is achieved by a support rail for a grain elevator and a grain elevator according to the independent claims. Embodiments and advantageous further developments are specified in the dependent claims.

The support rail of the ear lift for crops has a main direction of extension, wherein the section formed as a slide is arranged between a first end and a second end of the support rail. The section formed as a slide is configured to be guided over the ground by the outside. The main direction of extension is also referred to as the longitudinal axis, wherein this is not to be understood as a straight line, but rather is defined along a support rail which is generally curved in the longitudinal direction. The section formed as a slider is also referred to below simply as a slider. The slide is formed, for example, by a section of the support rail itself, but can also be arranged as a separate component on the support rail.

Provision is made for the section formed as a slide to comprise a rod, wherein the rod extends in the main direction of extension on an inner side opposite the outer side.

The advantage of the support rail is that the rod is provided with a more rigid profile than a simple curved profile and also improves the wear performance. Furthermore, the support rail with the rod has a higher torsional rigidity than a simply curved profile. The reason for the advantageous improvement of the wear behavior is that the bearing rail offers greater stability with increased wear in the sections of the slide, thereby extending the service life until failure occurs. In a bearing rail according to the prior art with a simple bend, a hole is formed in the center thereof as the slide wears. The hole becomes larger with wear and weakens the slide to such an extent that it must be replaced. In the event of failure, the slips or parts of the ear elevator may be lost. For example, sharp-edged debris caught in the ground may damage the tires of the harvesting vehicle. Another risk if the front of the ear elevator is lost is that it will enter the cutting unit and thus pass through the entire threshing element of the harvester, where it can cause considerable damage. This results in long down time and high maintenance costs. With the disclosed slide, the rod is held in place to bridge and stabilize the hole even with increased wear. This results in an advantageously longer service life of the support bar. Furthermore, the increased wear towards the flanks, i.e. the outer area of the slide close to the rod, will soon lead to a build-up of soil and harvested material. The user will notice this clearly so that he can check the wear limit of the ear elevator without risking loss due to excessive weakening of the worn section.

According to one embodiment, it is provided that the rod is connected on the inside to a section formed as a slide. Thus, under the wear described above, two elongated slots will be formed, the combined width of which is less than the width of a single hole and the area of which is less than the area of the hole. For example, the rod is joined to the section formed as a slider by material bonding, in particular by welding. Alternatively, the stem may be riveted and/or glued to the section formed as a slider.

According to another embodiment, the rod is inserted into a recess of a section formed as a slider. The recess is designed in particular as a continuous groove along the main direction of extension, into which groove the rod is inserted. For example, the rod projects on the inside beyond the section formed as a slide. The groove has an extension in the main extension direction which is at least twice as large, for example at least five times as large as in the other extension directions.

According to a further embodiment, it is provided that the lever is made of a different material than the section formed as a slide or the rest of the support rail. In the sense of the present disclosure, different materials are also to be understood as meaning identical starting materials having different material properties, which result, for example, from the treatment of the materials. This includes, in particular, the hardness and/or strength of the material, which can be influenced, for example, by heat treatment. Hardness is the mechanical resistance of a material to mechanical penetration by a durometer indenter. Strength is the ability of a material to resist deformation and separation. Hardness and strength can be determined using material testing methods known to those skilled in the art. For example, the material from which the rods are made has a greater stiffness and/or strength than the material from which the slider members are made.

According to a further embodiment, it is provided that the rod is formed in the shape of a rib, so that the rod and the section formed as a slide have a T-shaped cross section in a section transverse to the main direction of extension. For example, the section formed as a slider has, for example, flanks, wherein the flanks are angled towards the inside. For example, the section formed as a slide is concavely curved on the inside, so that a T-shape should not be understood as meaning that the cross section of the slide must be straight.

The extension of the bars in the main extension direction may be constant or variable in the second extension direction, for example decreasing from the central region towards both sides. For example, the rod has a curvature along the main extension direction, which corresponds to the curvature of the section formed as a slide. The lever thereby advantageously adapts to the contour of the section formed as a slide.

According to a further embodiment, it is provided that the lever has a base plate, wherein the base plate is connected to a section formed as a slide. The base plate advantageously facilitates the connection of the rod to the section formed as a slide, in particular if the latter is not inserted into the recess. The base plate is advantageously provided with a surface for making an adhesive or rivet connection.

The present disclosure is not limited to a support rail having only one rod. The person skilled in the art will appreciate that an embodiment is conceivable in which the section formed as a slide has, in addition to the bars, at least one further bar on the inside extending in the main direction of extension, wherein the bars are in particular arranged parallel to each other.

Another aspect relates to an ear elevator for a scissoring unit that addresses the above objectives. As described above, the ear elevator includes the straw lifters and the support rails supporting the straw lifters.

The straw lifter is arranged, for example, at the second end of the support rail, wherein the section formed as a slide joins the second end, and wherein the rod extends to the straw lifter. The cross-section of the straw lifter may have a V-shaped profile with the bar extending into the V-shaped profile such that one end of the bar is disposed between the legs of the V-shaped profile. The rod may be connected to a straw lifter.

Further features and advantages will be explained in more detail below with the aid of exemplary embodiments with reference to the drawing. These descriptions are merely exemplary and do not limit the general inventive concept.

Drawings

Shown in the drawings are:

fig. 1 is a perspective view of an embodiment of an ear elevator having support rails;

fig. 2a and 2b are two detailed perspective views of an embodiment of the support rail;

figures 3a and 3b are two detailed perspective views of another embodiment of the support rail;

fig. 4a and 4b are two detailed perspective views of a further embodiment of the support rail.

Detailed Description

Fig. 1 shows an exemplary embodiment of an ear lift with a support rail 5. The first end 8 of the support rail 5, which is made of flat material as a starting material, is provided for attachment to a not shown shearer bar of a harvesting machine. At a second end 9, remote from the first end 8, a straw lifter 10 is attached to the support rail 5 to form an acute angle with the support rail 5. The support rail 5 comprises a holder 11 configured to rest on a harvesting finger, not shown. The support rail 5 extends along a main extension direction X from a first end 8 to a second end 9. During operation of the harvesting machine, the outer side 15 faces the ground. The section 12 of the support rail 5 formed as a slide is configured to slide over the ground (not shown) and is therefore subject to considerable wear. The bearing rail 5 is concave in the section of the slide 12, viewed from the inner side 18, so that the side flanks 17 of the slide 12 enclose an acute angle with the ground during operation.

The section 12 formed as a slide is configured to be guided over the ground by an outer side 15. The section 12 formed as a slide comprises a rod 14, wherein the rod 14 extends in the main extension direction X of the support rail 5 on an inner side 18 opposite the outer side 15. Since the main extension direction X of the support rail 5 coincides with the main extension direction of the rod 14, the term "main extension direction X" hereinafter refers to both parts. The second direction of extension Z of the bars 14 in the form of ribs is oriented substantially orthogonal to the main direction of extension X. The directional arrows should not be understood as cartesian axes, but merely as an illustration of the direction of extension in a slight perspective. In other figures, no directional arrows are indicated. The directions given in fig. 1 apply mutatis mutandis to all the figures.

In the exemplary embodiment of the ear elevator according to fig. 1, a straw lifter 10 is arranged at the second end 9 of the support rail 5, wherein a section 12 formed as a slide is arranged adjacent to the second end 9, and wherein a rod 14 extends all the way to the straw lifter 10. The straw lifter 10 has a V-shaped profile in cross-section with the bar 14 extending into the V-shaped profile.

Fig. 2a and 2b show two partial views of an exemplary embodiment of a support rail 5 for the ear lift according to fig. 1, wherein the section 12 formed as a slide is shown in detail. Both figures are depicted together. The extension of the rod 14 in the main extension direction X is constant in the second extension direction Z (see fig. 1). The rod 14 has a curvature along the main extension direction X which is adapted to the section 12 formed as a slide. In the embodiment shown, the lever 14 has a base plate 16 which is connected to the section 12 formed as a slide. The base plate 16 serves to connect the lever 14 to the section 12 formed as a slide, which is here realized by a fastener in the form of a rivet 19.

Fig. 3a and 3b show two partial views of a further exemplary embodiment of a support rail 5 for the ear lift according to fig. 1, wherein the section 12 formed as a slide is shown in detail. Both figures are depicted together. This embodiment differs from the embodiment shown in fig. 2a and 2b in that the base plate 16 is connected to the section 12 formed as a slide in a different manner, i.e. without fasteners. The base plate 16 is connected to the segments 12 formed as slides, for example by an adhesive connection, a soldered connection or by a welded connection.

Fig. 4a and 4b show two partial views of a further exemplary embodiment of a support rail 5 for the ear lift according to fig. 1, wherein the section 12 formed as a slide is shown in detail. Both figures are depicted together. This embodiment differs from the embodiment shown in fig. 2a and 2b in that the rod 14 is connected to the section 12 formed as a slide in a different way. The rod has no base plate but is inserted into the groove-like recess 6 of the section 12 formed as a slide. The recess 6 runs in the main extension direction X (see fig. 1) and is provided to penetrate from the inner side 18 to the outer side 15. For example, the stem 14 is flush with the outer side 15. For example, on the inner side 18, the stem 14 protrudes therefrom.

The rod 14 is joined to the section 12 formed as a slide, for example by a welded connection (not shown). Alternatively, in the exemplary embodiment according to fig. 4a and 4b, it is also possible to attach the lever 14 to the section 12 formed as a slide by means of a rivet connection. For example, rivets (not shown) are preformed as projections on the stem 14. After the stem 14 is inserted into the recess 6, rivets projecting from the outer side 15 are machined, so that the stem 14 is firmly connected. In particular, a rivet is provided at the end of the stem 14, which is driven under deformation into the end of the recess 6 to form the connection. Another alternative is to make the recess slot-like, but to provide a plurality of apertures, wherein rivets prefabricated as projections on the stem 14 are inserted into the apertures and riveted therein. In that case, the rod 14 is arranged on the inner side 15, except for the rivet.

A further alternative to the embodiment according to fig. 4a and 4b is that the rod 14 projects on the outer side 15, in particular in the same way as on the inner side 18, in order to advantageously further reduce the wear on the outer side 15.

Reference numerals

5 support rail

6 trough-like recess

8 first end of support rail

9 second end of the support rail

10 straw lifter

11 holder

12 are designed as sections of a sliding element

14 bar

15 outside

16 base plate

17 side wing

18 inner side

19 rivet

Main direction of extension, longitudinal axis of X

Z second direction of extension