Lifting and overturning ear box and harvester

Abstract

The utility model relates to the technical field of ear boxes, in particular to a lifting and overturning ear box and a harvester. The lifting and overturning ear box comprises a base, an ear box body and ear box cross beams supported on the two sides of the ear box body, and further comprises two lifting and overturning systems and oil way systems which are symmetrically arranged on the two sides of the ear box body. The lifting turnover system comprises a support, a sliding rod and a hydraulic oil cylinder. The lower end of the support is hinged to the base through a first rotating shaft, and the upper end of the support is hinged to the cluster box beam through a second rotating shaft. A section of sliding rail is arranged on the support, the lower end of the sliding rod is hinged to the base, and the upper end of the sliding rod is arranged in the sliding rail and can slide along the sliding rail; the lower end of the hydraulic oil cylinder is hinged with the base; the upper end of the hydraulic oil cylinder is hinged with the cluster box cross beam; and the hydraulic oil cylinder is communicated with the oil path system. The combined lifting and overturning actions of the ear box can be realized under the condition of only one group of hydraulic oil cylinders, hydraulic parts such as oil cylinders, sequence valves, multi-way valves and the like are reduced, and the cost is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ear boxes, and particularly relates to a lifting and tipping ear box and a harvester. Background Art

[0002] An ear box is a component used to hold ears in a combine harvester for both stalks and ears. The harvested ears still need to be transported to a grain truck through the ear box. With the continuous development of harvesters, the volume of the existing ear box has become larger. To ensure the harvesting efficiency, some grain trucks have also increased their corresponding volumes. Therefore, the heights of the existing grain trucks are different. When the height of the grain truck is relatively low, it is easy for the grain to fall out of the grain truck during unloading.

[0003] To enable the ear box to meet the grain receiving needs of grain trucks with different heights, the existing combine harvesters for both stalks and ears generally use two groups of oil cylinders (4 oil cylinders) to cooperate to achieve the combined actions of lifting and tipping the ear box. This method requires the cooperation of components such as two groups of oil cylinders, sequence valves, and multi-way valves to achieve the combined actions, resulting in complex pipelines, many components, and high costs. Summary of the Utility Model

[0004] The utility model aims to improve the problems of the lifting and tipping structure of the ear box and the complex pipeline in the background art, and provides a lifting and tipping ear box.

[0005] The implementation method of the lifting and tipping ear box is as follows: it includes a base, an ear box, and ear box crossbeams supported on both sides of the ear box, and also includes two groups of lifting and tipping systems and an oil circuit system symmetrically arranged on both sides of the ear box;

[0006] The lifting and tipping system includes a bracket, a sliding rod, and a hydraulic cylinder;

[0007] The lower end of the bracket is hinged to the base through a first rotating shaft, and the upper end of the bracket is hinged to the ear box crossbeam through a second rotating shaft;

[0008] A section of slide rail is arranged on the bracket. The lower end of the sliding rod is hinged to the base, and the upper end of the sliding rod is arranged in the slide rail so that it can slide along the slide rail;

[0009] The lower end of the hydraulic cylinder is hinged to the base, and the upper end of the hydraulic cylinder is hinged to the ear box crossbeam; the hydraulic cylinder is connected to the oil circuit system.

[0010] In a preferred embodiment, the base is a triangular bracket with one end higher and the other end lower;

[0011] The side of the ear box crossbeam close to the ear box opening is the front end, and the front end of the ear box crossbeam is close to the lower end of the base;

[0012] The lower end of the bracket is connected to the lower end of the base, and the upper end of the bracket is connected to the front end of the ear box cross beam.

[0013] In a preferred embodiment, the lower end of the hydraulic cylinder is hinged to the middle position of the hypotenuse of the base, and the upper end of the hydraulic cylinder is hinged to a position near the front end of the ear box cross beam.

[0014] In a preferred embodiment, a chute is provided in the slide rail, and a roller is provided at the upper end of the sliding rod, and the roller can slide in the chute.

[0015] In a preferred embodiment, the slide rail is a guide rod, and limit blocks are respectively provided at both ends of the guide rod; a sliding sleeve is provided at the upper end of the sliding rod, and the sliding sleeve is sleeved on the guide rod and can slide within the limit range of the limit blocks.

[0016] In a preferred embodiment, the lower end of the sliding rod is hinged to the hypotenuse of the base, and the hinge point is located between the lower end of the hydraulic cylinder and the lower vertex of the base.

[0017] In a preferred embodiment, the length of the slide rail is 1 / 4 to 1 / 2 of the length of the bracket.

[0018] In a preferred embodiment, a deflector is provided at the opening of the ear box.

[0019] In a preferred embodiment, the oil circuit system includes a branch oil supply pipeline, a branch oil return pipeline and two three-way valves. The two hydraulic cylinders are respectively connected to the branch oil supply pipeline and the branch oil return pipeline; one three-way valve is connected to the main oil supply circuit and supplies oil to the two hydraulic cylinders synchronously through the branch oil supply pipeline, and the other three-way valve is connected to the main oil return circuit and returns oil from the two hydraulic cylinders synchronously through the branch oil return pipeline.

[0020] The present invention also provides a harvester, including the lifting and flipping ear box as described above.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] When the ear box flips, the hydraulic cylinder starts to extend when it is supplied with oil. At this time, the ear box and the bracket rotate synchronously around the first rotation axis under the action of the hydraulic cylinder. The lower end of the sliding rod rotates around the base at this time, and the upper end moves downward along the slide rail from top to bottom to realize the flipping action until the bracket stops moving under the action of the sliding rod and the flipping action ends;

[0023] When the ear box is lifted, the hydraulic cylinder continues to act. At this time, the bracket is fixed by the sliding rod, and only the ear box rotates around the second rotation axis to realize the secondary flipping action until the maximum stroke of the hydraulic cylinder is reached and the secondary flipping action ends;

[0024] When the hydraulic cylinder retracts, the ear box rotates around the second rotation axis under the action of the hydraulic cylinder. Until the support releases the force on the sliding rod, the ear box and the support rotate synchronously around the first rotation axis, and finally achieve the overall secondary retraction.

[0025] The lifting and flipping ear box provided by the utility model can realize the combined action of lifting and flipping of the ear box only with a group of hydraulic cylinders, reduce hydraulic components such as hydraulic cylinders, sequence valves, and multi-way valves, and greatly reduce the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0027] Figure 1 It is a schematic structural diagram of the flipping ear box provided in the embodiment of the present utility model;

[0028] Figure 2 It is a schematic diagram when the flipping ear box provided in the embodiment of the present utility model performs the first-level flipping;

[0029] Figure 3 It is a schematic diagram when the flipping ear box provided in the embodiment of the present utility model performs the second-level flipping;

[0030] Reference numerals in the drawings:

[0031] 1 - ear box; 11 - ear box cross beam; 2 - hydraulic cylinder;

[0032] 3 - support; 31 - slide rail; 4 - sliding rod;

[0033] 5 - base; 6 - second rotation axis; 7 - first rotation axis. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. The components of the embodiments of the present utility model described and labeled in the drawings can be arranged and designed in various different configurations.

[0035] Accordingly, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0036] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0037] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is customarily placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and should not be construed as indicating or implying relative importance.

[0038] In addition, terms such as "horizontal", "vertical", "hanging" do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0039] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "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 directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] The following will describe in detail some embodiments of the present invention with reference to the drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0041] The structure of the lifting and tipping ear box provided in this embodiment is as Figures 1 to 3As shown in the figure, it includes a base 5, a corn cob box 1, and corn cob box crossbeams 11 supported on both sides of the corn cob box 1. It also includes two sets of lifting and flipping systems and an oil circuit system symmetrically arranged on both sides of the corn cob box 1.

[0042] The lifting and flipping system includes a bracket 3, a sliding rod 4, and a hydraulic cylinder 2;

[0043] Specifically, the lower end of the bracket 3 is hinged to the base 5 through a first rotating shaft 7, and the upper end of the bracket 3 is hinged to the corn cob box crossbeam 11 through a second rotating shaft 6;

[0044] A section of slide rail 31 is arranged on the bracket 3. The lower end of the sliding rod 4 is hinged to the base 5, and the upper end of the sliding rod 4 is arranged in the slide rail 31 so that it can slide along the slide rail 31;

[0045] The lower end of the hydraulic cylinder 2 is hinged to the base 5, and the upper end of the hydraulic cylinder 2 is hinged to the corn cob box crossbeam 11; the hydraulic cylinder 2 is connected to the oil circuit system.

[0046] The working state is as follows:

[0047] When the corn cob box 1 flips, the hydraulic cylinder 2 starts to extend by admitting oil. At this time, the corn cob box 1 and the bracket 3 rotate synchronously around the first rotating shaft 7 under the action of the hydraulic cylinder 2. The lower end of the sliding rod 4 rotates around the base 5 at this time, and the upper end moves downward along the slide rail 31 from top to bottom to realize the flipping action until the bracket 3 stops moving under the action of the sliding rod 4, and the flipping action ends;

[0048] When the corn cob box 1 is lifted, the hydraulic cylinder 2 continues to act. At this time, the bracket 3 is fixed by the sliding rod 4, and only the corn cob box 1 rotates around the second rotating shaft 6 to realize the secondary flipping action until the maximum stroke of the hydraulic cylinder 2 is reached, and the secondary flipping action ends;

[0049] When the hydraulic cylinder 2 retracts, the corn cob box 1 rotates around the second rotating shaft 6 under the action of the hydraulic cylinder 2 until when the bracket 3 is released from the force of the sliding rod 4, the corn cob box 1 and the bracket 3 rotate synchronously around the first rotating shaft 7, and finally realize the secondary overall retraction.

[0050] In order to enable the hydraulic cylinder 2 to better realize the lifting and flipping actions of the corn cob box 1, the base 5 is set as a triangular bracket with one end higher and the other end lower;

[0051] At the same time, the side of the corn cob box crossbeam 11 close to the opening of the corn cob box 1 is the front end, and the front end of the corn cob box crossbeam 11 is close to the lower end of the base 5;

[0052] The lower end of the bracket 3 is connected to the lower end of the base 5, and the upper end of the bracket 3 is connected to the front end of the corn cob box crossbeam 11.

[0053] The triangular base 5 can make the flipping action of the corn cob box 1 easier to achieve.

[0054] At this time, the lower end of the hydraulic cylinder 2 is hinged to a position slightly forward of the middle of the hypotenuse of the base 5; the upper end of the hydraulic cylinder 2 is hinged to a position near the front end of the ear box cross beam 11, and the hinge point of the hydraulic cylinder 2 and the ear box cross beam 11 is located behind the hinge point of the support 3 and the ear box cross beam 11.

[0055] In order to maximize the power of the hydraulic cylinder 2, the distance from the hinge point of the hydraulic cylinder 2 and the ear box cross beam 11 to the second rotating shaft 6 is less than the distance from the hinge point of the hydraulic cylinder 2 and the base 5 to the first rotating shaft 7.

[0056] In one implementation, a chute is provided in the slide rail 31, and a roller is provided at the upper end of the sliding rod 4, and the roller can slide in the chute.

[0057] In another implementation, the slide rail 31 can be set as a guide rod, and limit blocks are respectively provided at both ends of the guide rod; a sliding sleeve is provided at the upper end of the sliding rod 4, and the sliding sleeve is sleeved on the guide rod and can slide within the limit interval of the limit block.

[0058] In order to enable the sliding rod 4 to better support the support 3 and ensure the sight line of the lifting and flipping actions of the ear box 1, the lower end of the sliding rod 4 is hinged to the hypotenuse of the base 5, and the hinge point is located between the lower end of the hydraulic cylinder 2 and the lower vertex of the base 5.

[0059] The length of the slide rail 31 is 1 / 4 to 1 / 2 of the length of the support 3, and the position is located at the lower part of the middle of the support 3. The specific length and position can be determined according to the height to be lifted and the flipping angle.

[0060] The oil circuit system includes a branch oil supply pipeline, a branch oil return pipeline and two three-way valves. The two hydraulic cylinders 2 are respectively connected to the branch oil supply pipeline and the branch oil return pipeline; one three-way valve is connected to the main oil supply circuit and supplies oil to the two hydraulic cylinders 2 synchronously through the branch oil supply pipeline, and the other three-way valve is connected to the main oil return circuit and returns oil from the two hydraulic cylinders 2 synchronously through the branch oil return pipeline.

[0061] A deflector is provided at the opening of the ear box 1 to prevent the ears from spilling from the side of the ear box 1.

[0062] This lifting and flipping ear box can realize the combined action of lifting and flipping the ear box only in the case of a group of hydraulic cylinders, reducing hydraulic components such as hydraulic cylinders, sequence valves, and multi-way valves, and greatly reducing the cost.

[0063] This embodiment also provides a harvester, including the above-mentioned lifting and flipping ear box, and having all the advantages of the above-mentioned lifting and flipping ear box, which will not be elaborated here one by one.

[0064] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, various modifications and variations can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A lifting and turning fruit ear box, comprising a base, a fruit ear box and a fruit ear box crossbeam supported on both sides of the fruit ear box, characterized in that: It also includes two sets of lifting and turning systems and oil circuit systems symmetrically arranged on both sides of the fruit ear box; The lifting and flipping system includes a bracket, a sliding rod and a hydraulic cylinder; The lower end of the bracket is hinged to the base via a first rotating shaft, and the upper end of the bracket is hinged to the cross beam of the fruit ear box via a second rotating shaft; A slide rail is arranged on the bracket, the lower end of the slide rod is hinged to the base, and the upper end of the slide rod is arranged in the slide rail so that it can slide along the slide rail; The lower end of the hydraulic cylinder is hinged to the base, and the upper end of the hydraulic cylinder is hinged to the cross beam of the fruit ear box; the hydraulic cylinder is connected to the oil circuit system.

2. The lifting and turning fruit ear box according to claim 1, characterized in that: The base is a triangular bracket with one end higher and the other end lower; The side of the cross beam of the fruit ear box close to the box opening of the fruit ear box is the front end, and the front end of the cross beam of the fruit ear box is close to the lower end of the base; The lower end of the bracket is connected to the lower end of the base, and the upper end of the bracket is connected to the front end of the cross beam of the fruit ear box.

3. The lifting and turning fruit ear box according to claim 2 is characterized in that: The lower end of the hydraulic cylinder is hinged to the middle position of the hypotenuse of the base, and the upper end of the hydraulic cylinder is hinged to the position close to the front end of the cross beam of the fruit ear box.

4. The lifting and turning fruit ear box according to claim 3 is characterized in that: A slide groove is arranged in the slide rail, and a roller is arranged at the upper end of the slide rod, and the roller can slide in the slide groove.

5. The lifting and turning fruit ear box according to claim 3 is characterized in that: The slide rail is a guide rod, and limit blocks are respectively arranged at both ends of the guide rod; a sliding sleeve is arranged at the upper end of the sliding rod, and the sliding sleeve is sleeved on the guide rod and can slide within the limit interval of the limit block.

6. The lifting and turning fruit ear box according to claim 3, characterized in that: The lower end of the sliding rod is hinged to the hypotenuse of the base, and the hinge point is located between the lower end of the hydraulic cylinder and the lower vertex of the base.

7. The lifting and turning fruit ear box according to claim 1, characterized in that: The length of the slide rail is 1 / 4 to 1 / 2 of the length of the bracket.

8. The lifting and turning fruit ear box according to claim 1, characterized in that: A guide plate is arranged at the box opening of the ear box.

9. The lifting and turning fruit ear box according to claim 1, characterized in that: The oil circuit system includes a branch oil pipeline, a branch oil return pipeline and two three-way valves. The two hydraulic cylinders are respectively connected to the branch oil pipeline and the branch oil return pipeline; one of the three-way valves is connected to the main oil circuit and supplies oil to the two hydraulic cylinders synchronously through the branch oil pipeline, and the other three-way valve is connected to the main oil return circuit and returns oil from the two hydraulic cylinders synchronously through the branch oil return pipeline.

10. A harvester, characterized in that: It comprises the lifting and turning fruit cluster box as described in any one of claims 1 to 9.

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