Harvester cab and harvester
By installing reinforcement components on the back of the harvester cab and changing its natural frequency to avoid vibration excitation frequency, the resonance problem is solved and the safety, stability and comfort of the cab are improved.
Patent Information
- Application Number
- CN202422559338.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-10-22
AI Technical Summary
When the harvester works in the field, the vibration excitation of multiple moving mechanisms is prone to resonance, which leads to high vibration and noise in the cab, affecting safety, stability and comfort.
A reinforcement assembly is provided on the back of the cab body, with the top end supporting in the middle of the top side and the bottom end supporting in both ends of the bottom side, changing the natural frequency of the cab to avoid the main excitation frequency and reducing resonance.
By reducing resonance, the safety, stability and comfort of harvester driving are improved.
Smart Images
Figure CN223161876U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of agricultural harvesting machinery, and particularly relates to a harvester cab and a harvester. Background Art
[0002] When a harvester operates in the field, operations such as cutting, transporting, threshing, and cleaning of crops are required. Therefore, the harvester includes multiple moving mechanisms such as a shredder, a fan, and an auger. During the operation, the cab will be simultaneously subjected to multiple vibration excitations, and it is extremely easy to generate a resonance phenomenon. Resonance will cause large vibrations and noises in the cab, thereby affecting the safety, smoothness, and comfort of driving. Content of the Utility Model
[0003] Aiming at the above deficiencies or defects in the prior art, the utility model provides a harvester cab and a harvester, which can effectively improve the safety, smoothness, and comfort of harvester driving.
[0004] To achieve the above object, the utility model provides a harvester cab, and the harvester cab includes:
[0005] A cab body;
[0006] A strengthening component, fixedly arranged on the back of the cab body and extending from top to bottom, the top end of the strengthening component abuts against the middle of the top side of the back of the cab body, and the bottom end of the strengthening component abuts against both ends of the bottom side of the back of the cab body.
[0007] Optionally, the strengthening component includes a first strengthening beam and a second strengthening beam arranged at an angle, and the ends of the first strengthening beam and the second strengthening beam that are close to each other abut against the middle of the top side of the back of the cab body, and the other ends that are far away from each other respectively abut against both ends of the bottom side of the back of the cab body.
[0008] Optionally, the first strengthening beam and the second strengthening beam are symmetrically arranged with respect to the vertical central axis of the back of the cab body.
[0009] Optionally, the first strengthening beam and the second strengthening beam are welded to the back of the cab body.
[0010] Optionally, the cross-sections of the first strengthening beam and the second strengthening beam are rectangular.
[0011] Optionally, the cross-sections of the first strengthening beam and the second strengthening beam are U-shaped.
[0012] Optionally, the included angle between the first strengthening beam and the second strengthening beam is 80° to 100°.
[0013] Optionally, the reinforcing component includes a plurality of the first reinforcing beams and a plurality of the second reinforcing beams, and the plurality of the first reinforcing beams are arranged side by side, and the plurality of the second reinforcing beams are arranged side by side.
[0014] Optionally, the reinforcing component further includes a third reinforcing beam, and the third reinforcing beam is fixedly connected between the first reinforcing beam and the second reinforcing beam.
[0015] The present utility model also provides a harvester, and the harvester includes the above-mentioned harvester cab.
[0016] Through the above technical solution, in the harvester cab of the present utility model, a reinforcing component is provided on the back of the cab body, and the top end of the reinforcing component abuts against the middle of the top side of the back of the cab body, and the bottom end abuts against both ends of the bottom side of the back of the cab body. By setting like this, the natural frequency of the harvester cab is effectively changed, so that the natural frequency of the harvester cab is avoided from the main excitation frequency during the operation of the harvester. In this way, the resonance of the harvester cab is effectively reduced to achieve the purpose of vibration reduction and noise reduction, thereby effectively improving the safety, stability and comfort of the harvester driving.
[0017] Other features and advantages of the present utility model will be described in detail in the subsequent specific embodiment part. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification, and are used to explain the present utility model together with the following specific embodiments, but do not constitute a limitation to the present utility model. In the drawings:
[0019] Figure 1 is a schematic structural diagram of the harvester cab in the present utility model;
[0020] Description of the reference numerals:
[0021] DETAILED DESCRIPTION OF THE EMBODIMENTS
[0022] The following will describe in detail the specific embodiments of the present utility model with reference to the drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present utility model, and are not used to limit the present utility model.
[0023] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.
[0024] In the present utility model, unless otherwise specified, directional terms such as "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present utility model 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. Therefore, it should not be construed as a limitation to the embodiments of the present utility model; the directional terms "inner" and "outer" refer to the inside and outside relative to the contour of each component itself.
[0025] The present utility model will be described in detail below with reference to the drawings and in conjunction with embodiments.
[0026] The present utility model first provides a harvester cab.
[0027] In one embodiment, as shown in the accompanying drawings, the harvester cab includes:
[0028] A cab body 1;
[0029] A strengthening component, fixedly arranged on the back of the cab body 1 and extending downward from top to bottom. The top end of the strengthening component abuts against the middle of the top side of the back of the cab body 1, and the bottom end of the strengthening component abuts against both ends of the bottom side of the back of the cab body 1.
[0030] By performing modal simulation analysis on the harvester cab of this embodiment, it is found that after the strengthening component is arranged on the back of the cab body 1, the modal vibration mode of the back of the cab body 1 can be effectively segmented, resulting in the offset of the modal frequency concentration area of the back of the cab body 1. The fourth-order mode is 24.24 HZ when the strengthening component is not arranged, and becomes 29.90 HZ after the strengthening component is arranged, successfully avoiding the resonance risk frequency of 24.1 HZ. At the same time, after the strengthening component is arranged, since the first-order, second-order, and third-order modes change, all resonance risk frequencies are avoided.
[0031] That is to say, in the harvester cab of this embodiment, a strengthening component is arranged on the back of the cab body 1, and the top end of the strengthening component abuts against the middle of the top side of the back of the cab body 1, and the bottom end abuts against both ends of the bottom side of the back of the cab body 1. By setting like this, the natural frequency of the harvester cab is effectively changed, so that the natural frequency of the harvester cab is avoided from the main excitation frequency during the operation of the harvester. In this way, the resonance of the harvester cab is effectively reduced to achieve the purpose of vibration reduction and noise reduction, thereby effectively improving the safety, stability and comfort of the harvester driving.
[0032] In one embodiment, the strengthening component includes a first strengthening beam 2 and a second strengthening beam 3 arranged at an included angle. The ends of the first strengthening beam 2 and the second strengthening beam 3 that are close to each other abut against the middle of the top side of the back surface of the cab body 1, and the other ends that are far from each other respectively abut against the two ends of the bottom side of the back surface of the cab body 1.
[0033] The strengthening component of this embodiment is composed of the first strengthening beam 2 and the second strengthening beam 3, with a simple structure, easy to manufacture and low manufacturing cost.
[0034] Of course, in some other embodiments, the strengthening component can also be in other structural forms. For example, the strengthening component can include three strengthening beams, and the three strengthening beams are connected end to end to form a triangular structural member in the shape of a triangular ring. The three ends of the triangular structural member respectively abut against the middle of the top side of the back surface of the cab body 1 and the two ends of the bottom side of the back surface of the cab body.
[0035] In one embodiment, the first strengthening beam 2 and the second strengthening beam 3 are symmetrically arranged with respect to the vertical central axis of the back surface of the cab body 1. With such an arrangement, the vibration reduction and noise reduction effect can be further improved.
[0036] In one embodiment, the first strengthening beam 2 and the second strengthening beam 3 are welded to the back surface of the cab body 1. With such an arrangement, the structural strength of the strengthening component can be ensured.
[0037] Of course, in some other embodiments, the first strengthening beam 2 and the second strengthening beam 3 can also be installed on the back surface of the cab body 1 by means of fastening connection with fasteners.
[0038] In one embodiment, the cross-sections of the first strengthening beam 2 and the second strengthening beam 3 are rectangular. With such an arrangement, it can be ensured that the first strengthening beam 2 and the second strengthening beam 3 have relatively high structural strength.
[0039] In one embodiment, the cross-sections of the first strengthening beam 2 and the second strengthening beam 3 are U-shaped. With such an arrangement, it can be ensured that the first strengthening beam 2 and the second strengthening beam 3 have relatively high structural strength.
[0040] In one embodiment, the included angle between the first strengthening beam 2 and the second strengthening beam 3 is 80° to 100°. Preferably, the included angle between the first strengthening beam 2 and the second strengthening beam 3 is 90°. With such an arrangement, it can be ensured that the first strengthening beam 2 and the second strengthening beam 3 have relatively high supporting strength for the back surface of the cab body 1.
[0041] In one embodiment, the strengthening component includes multiple first strengthening beams 2 and multiple second strengthening beams 3. The multiple first strengthening beams 2 are arranged side by side, and the multiple second strengthening beams 3 are arranged side by side. With such an arrangement, the supporting strength of the strengthening component for the back surface of the cab body 1 can be further improved.
[0042] In one embodiment, the reinforcing component further includes a third reinforcing beam, which is fixedly connected between the first reinforcing beam 2 and the second reinforcing beam 3. With this arrangement, the supporting strength of the reinforcing component for the back surface of the cab body 1 can be further improved.
[0043] The present utility model also provides a harvester, which includes the harvester cab as described above. The specific structure of this harvester cab refers to the above embodiments. Since this harvester adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated one by one here.
[0044] In the description of the present utility model, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.
[0045] In the present utility model, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected to", "fixed" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0046] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.
[0047] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.
Claims
1. A combine harvester cab, characterized in that, The combine harvester cab includes: A cab body (1); A strengthening component fixedly arranged on the back of the cab body (1) and extending from top to bottom, with the top end of the strengthening component propping against the middle of the top side of the back of the cab body (1), and the bottom end of the strengthening component propping against both ends of the bottom side of the back of the cab body (1).
2. The combine harvester cab according to claim 1, characterized in that, The strengthening component includes a first strengthening beam (2) and a second strengthening beam (3) arranged at an angle, with the closer ends of the first strengthening beam (2) and the second strengthening beam (3) propping against the middle of the top side of the back of the cab body (1), and the farther ends propping against both ends of the bottom side of the back of the cab body (1) respectively.
3. The harvester cab according to claim 2, characterized in that, The first strengthening beam (2) and the second strengthening beam (3) are symmetrically arranged with respect to the vertical central axis of the back of the cab body (1).
4. The harvester cab according to claim 2, wherein, The first strengthening beam (2) and the second strengthening beam (3) are welded to the back of the cab body (1).
5. The harvester cab according to claim 2, characterized in that, The cross-sections of the first strengthening beam (2) and the second strengthening beam (3) are rectangular.
6. The combine harvester cab according to claim 2, characterized in that, The cross-sections of the first strengthening beam (2) and the second strengthening beam (3) are U-shaped.
7. The harvester cab according to claim 2, characterized in that, The included angle between the first strengthening beam (2) and the second strengthening beam (3) is 80° to 100°.
8. The harvester cab according to claim 2, characterized in that, The strengthening component includes multiple first strengthening beams (2) and multiple second strengthening beams (3), with the multiple first strengthening beams (2) arranged side by side and the multiple second strengthening beams (3) arranged side by side.
9. The harvester cab according to claim 2, characterized in that, The strengthening component further includes a third strengthening beam fixedly connected between the first strengthening beam (2) and the second strengthening beam (3).
10. A harvesting machine, characterized in that, The combine harvester includes the combine harvester cab according to any one of claims 1 to 9.