Cross beam structure for off-highway wide-body vehicle

Abstract

The utility model belongs to the technical field of mining mechanical equipment, and relates to a cross beam structure for an off-highway wide-body vehicle, which comprises a left support and a right support which are respectively arranged on a left main beam and a right main beam of a vehicle frame, and the left support and the right support are respectively and fixedly connected to the outer vertical surfaces of the sides, far away from each other, of the left main beam and the right main beam. The upper ends and the lower ends of the left support and the right support are connected with the upper cross beam and the lower cross beam respectively, the two ends of the upper cross beam are connected to the upper end faces of the left support and the right support in a lap joint mode respectively, the two ends of the lower cross beam are connected between the left support and the right support in a lap joint mode respectively, and the lap joint faces of the lower cross beam and the left support and the lap joint faces of the lower cross beam and the right support are vertically designed. Adjusting gaskets are further arranged between the lower cross beam and the left support and between the lower cross beam and the right support. According to the lower cross beam structure, the problem that a lower cross beam connecting bolt is prone to breakage due to shearing force is solved, the safety risk that a whole vehicle is unstable and rolls over can be effectively reduced, meanwhile, the lower cross beam structure is simplified, and manufacturability is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of mine mechanical equipment, and particularly relates to a crossbeam structure for off-highway wide-body vehicle. BACKGROUND

[0002] At present, in order to meet the requirements of heavy load uphill, flat ground transportation, heavy load downhill and other compound working conditions, and to have the whole machine structure layout and economy, the frame structure of the off-highway wide-body vehicle usually has the types of bolt connection type flexible frame, rivet connection type semi-flexible frame and welded type rigid frame. The lower crossbeam structure of the bolt connection type flexible frame bears the alternating stress of the transverse impact load of the whole vehicle and the distortion of the left and right main beams of the frame. In the existing crossbeam structure, the lower crossbeam and the left and right main beams of the frame are fastened in the vertical direction. When the A hinge point position of the lower crossbeam is subjected to the transverse force F of the axle, the connecting bolt bears a large transverse shear force, and under the condition of complex and severe working conditions, the connecting bolt is prone to shear fracture.

[0003] In order to solve the safety problem of the fracture of the connecting bolt of the lower crossbeam of the off-highway wide-body vehicle of the bolt connection type flexible frame and the possible transverse instability and rollover of the whole vehicle during operation, a structure that can avoid the transverse shear force of the bolt is needed to ensure the safety of the whole vehicle during operation. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at solving the defects and deficiencies in the prior art, and designs a crossbeam structure for off-highway wide-body vehicle, which is simple in structure and stable and reliable.

[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme: a crossbeam structure for off-highway wide-body vehicle, which comprises left and right supports arranged on the left and right main beams of the frame respectively, the upper and lower ends of the left and right supports are connected with the upper and lower crossbeams respectively, the overlapping surfaces of the lower crossbeam and the left and right supports are designed vertically, and adjustment shims are arranged between the lower crossbeam and the left and right supports.

[0006] Preferably, the left and right supports are fixedly connected to the outer vertical surfaces of the left and right main beams away from each other.

[0007] Preferably, the left and right supports are designed perpendicularly to the left and right main beams.

[0008] Preferably, the two ends of the upper crossbeam are overlapped on the upper end surfaces of the left and right supports respectively, and the two ends of the lower crossbeam are overlapped between the left and right supports.

[0009] Preferably, the two ends of the lower crossbeam are overlapped on the vertical surfaces of the left and right supports close to each other, and a closed loop frame structure is formed between the left and right supports, the upper crossbeam and the lower crossbeam.

[0010] Preferably, the left and right ends of the lower cross beam are fixedly connected with the left support and the right support through horizontally arranged connecting bolts, and the adjusting gasket is used to fill the installation gap between the lower cross beam and the left support and the right support.

[0011] After the technical scheme is applied, the cross beam structure for off-highway wide-body vehicle has the following beneficial effects:

[0012] The lower cross beam and the support are designed in the vertical direction, and the connecting bolt between the lower cross beam and the support is designed in the horizontal direction, so that the connecting bolt no longer bears the shear force under the action of the lateral load of the whole vehicle, thereby avoiding the problem that the connecting bolt is easily broken, effectively reducing the safety risk of instability and rollover of the whole vehicle; meanwhile, the installation gap caused by the manufacturing error is compensated by the adjusting gasket; and the lower cross beam and the support are directly connected, the design of the L-shaped connecting bracket in the prior art is cancelled, so that the overall structure is simpler, and the manufacturability is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 is a schematic view of the cross beam structure for off-highway wide-body vehicle of the utility model;

[0014] Fig. 2 is an exploded view of the cross beam structure for off-highway wide-body vehicle of the utility model.

[0015] Wherein: the upper cross beam 1, the right support 2, the right main beam 3, the adjusting gasket 4, the connecting bolt 5, the lower cross beam 6, the left main beam 7 and the left support 8. DETAILED DESCRIPTION

[0016] The utility model will be further clearly and completely described below in combination with the drawings and specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative, but not as any limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0017] It should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise, and furthermore, it should be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.

[0018] The relative arrangement of parts and steps, numerical expressions, and numerical values set forth in the Examples are not intended to limit the scope of the present application unless otherwise specifically stated. Also, it is to be understood that the dimensions of the various parts shown in the drawings are not drawn to scale for the sake of convenience. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered part of the specification as appropriate. In all examples shown and discussed herein, any specific value is to be interpreted as illustrative only and not as a limitation. Thus, other examples of exemplary embodiments can have different values. It is to be noted that like numbers and letters refer to like elements throughout the several views of the drawings, and as such, no further discussion with regard thereto is deemed necessary.

[0019] In the description of the present application, it needs to be understood that the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" and the like indicated orientation or position relationship is usually based on the orientation or position relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, without making the opposite statement, these orientation words do not indicate and imply that the device or element referred to must have a particular orientation or be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the scope of protection of the present application; the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0020] For the convenience of description, spatial relative terms such as "on", "above", "upper surface", "upper" and the like can be used herein to describe the spatial position relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawing is inverted, the device described as "above" or "on" other devices or structures will be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative description used herein is interpreted accordingly.

[0021] In addition, it should be noted that the use of the words "first", "second" and the like to qualify parts is only for the convenience of distinguishing the corresponding parts, and the above words have no special meaning unless otherwise stated, therefore, it cannot be understood as a limitation on the scope of protection of the present application.

[0022] The utility model discloses a kind of crossbeam structures for off-highway wide-body vehicle, as shown in Fig. Figs. 1-2 It includes upper crossbeam 1, right support 2, right main beam 3, adjusting gasket 4, connecting bolt 5, lower crossbeam 6, left main beam 7 and left support 8.

[0023] Wherein, left support 8 and right support 2 are arranged on left main beam 7 and right main beam 3 of frame respectively, specifically, left support 8 and right support 2 are fixedly connected on the outer facade of left main beam 7 and right main beam 3 away from each other respectively by bolt, and left support 8 and right support 2 are perpendicular to left main beam 7 and right main beam 3, i.e. left support 8 and right support 2 extend along vertical direction, the upper and lower ends of left support 8 and right support 2 are connected with upper crossbeam 1 and lower crossbeam 6 respectively, the two ends of upper crossbeam 1 are overlapped on the upper end face of left support 8 and right support 2 respectively, the two ends of lower crossbeam 6 are overlapped between left support 8 and right support 2, the overlapping surface of lower crossbeam 6 and left support 8 and right support 2 is vertically designed, and adjusting gasket 4 is further arranged between lower crossbeam 6 and left support 8 and right support 2, specifically, the two ends of lower crossbeam 6 are overlapped on the vertical surface of left support 8 and right support 2 close to each other, the left and right ends of lower crossbeam 6 are fixedly connected with left support 8 and right support 2 through horizontally arranged connecting bolt 5, adjusting gasket 4 is used to fill the installation gap between lower crossbeam 6 and left support 8 and right support 2, to ensure that the connection is compact and reliable, and thus, left support 8, right support 2, upper crossbeam 1 and lower crossbeam 6 form closed loop frame structure between left and right main beams of frame.

[0024] The utility model discloses a kind of crossbeam structures for off-highway wide-body vehicle, when using, the A hinge point of lower crossbeam 6 bears the horizontal thrust F brought by axle, the main stress direction of connecting bolt 5 is consistent with bolt axial direction, to avoid that bolt is easily broken by larger radial shear force.

[0025] In summary, the utility model provides a kind of crossbeam structures for off-highway wide-body vehicle, avoids the problem that lower crossbeam connecting bolt is easily broken by shear force, can effectively reduce the security risk of whole vehicle instability rollover, simultaneously simplifies lower crossbeam structure, improves manufacturability, with great market value, is worth widely popularizing and applying.

[0026] The above describes, only for the preferred specific implementation mode of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art in the technical range disclosed by the utility model, according to the technical scheme and the utility model concept of the utility model, equivalent replacement or change, should be covered in the protection scope of the utility model.

Claims

1. A crossbeam structure for off-highway wide-body vehicles, characterized in that: It includes a left support (8) and a right support (2) respectively installed on the left main beam (7) and the right main beam (3) of the frame. The upper and lower ends of the left support (8) and the right support (2) are respectively connected to the upper crossbeam (1) and the lower crossbeam (6). The overlapping surfaces of the lower crossbeam (6) with the left support (8) and the right support (2) are designed to be vertical. Adjusting shims (4) are also provided between the lower crossbeam (6) and the left support (8) and the right support (2).

2. The crossbeam structure for off-highway wide-body vehicles according to claim 1, characterized in that: The left support (8) and the right support (2) are respectively fixedly connected to the exterior surfaces of the left main beam (7) and the right main beam (3) on the side away from each other.

3. A crossbeam structure for off-highway wide-body vehicles according to claim 1, characterized in that: The left support (8) and the right support (2) are designed to be perpendicular to the left main beam (7) and the right main beam (3).

4. A crossbeam structure for off-highway wide-body vehicles according to claim 1, characterized in that: The two ends of the upper crossbeam (1) are respectively connected to the upper surfaces of the left support (8) and the right support (2), and the two ends of the lower crossbeam (6) are respectively connected between the left support (8) and the right support (2).

5. A crossbeam structure for off-highway wide-body vehicles according to claim 4, characterized in that: The two ends of the lower crossbeam (6) are respectively attached to the vertical surfaces of the left support (8) and the right support (2) on the side closest to each other, and a closed-loop frame structure is formed between the left support (8), the right support (2), the upper crossbeam (1) and the lower crossbeam (6).

6. A crossbeam structure for off-highway wide-body vehicles according to claim 1, characterized in that: The left and right ends of the lower crossbeam (6) are fixedly connected to the left support (8) and the right support (2) respectively by horizontally set connecting bolts (5). The adjusting shim (4) is used to fill the installation gap between the lower crossbeam (6) and the left support (8) and the right support (2).

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