Cab frame structure and grader

Abstract

The utility model belongs to engineering machinery technical field discloses a kind of cab frame structure and land leveler. Cab frame structure includes lower frame subassembly, upper frame subassembly and connecting column, and lower frame subassembly and upper frame subassembly are the same number of polygonal structure, and lower frame subassembly and upper frame subassembly are spaced along vertical direction, and connecting column is provided with the same number of polygonal structure, and the both ends of each connecting column are connected in the corresponding edge corner position of lower frame subassembly and upper frame subassembly. The projection of lower frame subassembly along vertical direction coincides with the projection of upper frame subassembly along vertical direction, and the projection area of upper frame subassembly is greater than the projection area of lower frame subassembly. The cab frame structure is projected by the projection area of upper frame subassembly and is set to be greater than the projection area of lower frame subassembly, so that all connecting column is inclined outward in the direction from lower frame subassembly to upper frame subassembly, increase the space inside cab frame structure, so that the driving comfort of driver is improved.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery technology, and in particular to a cab frame structure and a grader. Background Technology

[0002] The existing grader cab frame generally includes an upper frame assembly, a lower frame assembly, and a connecting column connecting the upper frame assembly and the lower frame assembly. The two ends of the connecting column are perpendicular to the upper frame assembly and the lower frame assembly, respectively. The cab space formed by the above-mentioned cab frame is small, and the driving comfort is low. Utility Model Content

[0003] The purpose of this utility model is to provide a cab frame structure and a grader, which increases the internal space of the cab frame structure and improves the driving experience.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A cab frame structure, applied to a grader, includes a lower frame assembly, an upper frame assembly, and connecting columns. Both the lower and upper frame assemblies are polygonal structures with the same number of sides, spaced apart vertically. The connecting columns have the same number of sides as the polygonal structures, with each column connecting to the corresponding corner of the lower and upper frame assemblies at both ends. The projection of the lower frame assembly along the vertical direction coincides with the projection of the upper frame assembly along the vertical direction, and the projected area of ​​the upper frame assembly is larger than that of the lower frame assembly.

[0006] As an alternative, both the lower shelf assembly and the upper shelf assembly are hexagonal structures, and six connecting columns are provided.

[0007] As an alternative, the six connecting columns are divided into three groups of connecting columns, which are distributed at intervals from the front end to the rear end of the cab frame structure.

[0008] The first group of connecting columns includes two A-columns spaced apart along the left and right directions of the cab frame structure; the second group of connecting columns includes two B-columns spaced apart along the left and right directions of the cab frame structure; and the third group of connecting columns includes two C-columns spaced apart along the left and right directions of the cab frame structure. The distance between the two A-columns and the distance between the two C-columns are both smaller than the distance between the two B-columns.

[0009] As an alternative, the distance between the two A-pillars is equal to the distance between the two front wheels of the grader.

[0010] As an optional solution, the lower frame assembly includes a lower connecting plate, which includes a central connecting portion and side connecting portions disposed at both ends of the central connecting portion. The central connecting portion connects between two C-pillars, one side connecting portion connects between one C-pillar and one B-pillar, and the other side connecting portion connects between another C-pillar and another B-pillar. Both side connecting portions are configured as arc-shaped structures that bulge outwards.

[0011] As an optional embodiment, the lowering assembly further includes a first lower link and two second lower links, wherein the first lower link is connected between the two A-pillars, one second lower link is connected between one A-pillar and one B-pillar, and the other second lower link is connected between another A-pillar and another B-pillar.

[0012] As an optional embodiment, the mounting assembly includes a first upper link, two second upper links, two third upper links, and a fourth upper link. The first upper link connects between two of the A-pillars, one second upper link connects between one A-pillar and one B-pillar, another second upper link connects between another A-pillar and another B-pillar, one third upper link connects between one B-pillar and one C-pillar, another third upper link connects between another B-pillar and another C-pillar, and the fourth upper link connects between two of the C-pillars.

[0013] As an optional solution, the upper frame assembly also includes a middle crossbeam, a front longitudinal beam, and a rear longitudinal beam. The middle crossbeam connects the two B-pillars, the front longitudinal beam connects the first upper connecting rod and the front longitudinal beam, and the rear longitudinal beam connects the fourth upper connecting rod and the middle crossbeam.

[0014] As an alternative, the connecting column is made of shaped steel pipe.

[0015] Grader, including the cab frame structure described in any of the above embodiments.

[0016] The beneficial effects of this utility model are:

[0017] The cab frame structure provided by this utility model increases the internal space of the cab frame structure by setting the projected area of ​​the upper frame component to be larger than that of the lower frame component, so that all connecting columns are inclined outward along the direction from the lower frame component to the upper frame component, thereby improving the driving comfort of the driver. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the cab frame structure provided in this embodiment of the utility model;

[0019] Figure 2 This is a left view of the cab frame structure provided in this embodiment of the utility model.

[0020] In the picture:

[0021] 1. Lower frame assembly; 11. Lower connecting plate; 111. Middle connecting part; 112. Side connecting part; 12. First lower connecting rod; 13. Second lower connecting rod;

[0022] 2. Upper frame assembly; 21. First upper connecting rod; 22. Second upper connecting rod; 23. Third upper connecting rod; 24. Fourth upper connecting rod; 25. Middle crossbeam; 26. Front longitudinal beam; 27. Rear longitudinal beam; 28. First reinforcing rod; 29. ​​Second reinforcing rod; 210. Third reinforcing rod; 211. Fourth reinforcing rod;

[0023] 3. Connecting column; 31. Column A; 32. Column B; 33. Column C. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0025] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0028] like Figures 1-2 As shown, this utility model embodiment provides a cab frame structure for use on a grader.

[0029] The cab frame structure includes a lower frame assembly 1, an upper frame assembly 2, and connecting columns 3. Both the lower frame assembly 1 and the upper frame assembly 2 are polygonal structures with the same number of sides, and they are spaced apart vertically. The connecting columns 3 have the same number of sides as the polygonal structures, and each connecting column 3 connects to the corresponding corner positions of the lower frame assembly 1 and the upper frame assembly 2 to form the overall structure. The vertical projection of the lower frame assembly 1 coincides with the vertical projection of the upper frame assembly 2, and the projected area of ​​the upper frame assembly 2 is larger than the projected area of ​​the lower frame assembly 1. This causes all connecting columns 3 to tilt outwards in the direction from the lower frame assembly 1 to the upper frame assembly 2, giving the cab frame structure a funnel shape.

[0030] The cab frame structure increases the internal space of the cab frame structure by setting the projected area of ​​the upper frame component 2 to be larger than that of the lower frame component 1, so that all connecting columns 3 are inclined outward along the direction from the lower frame component 1 to the upper frame component 2, thereby improving the driving comfort of the driver.

[0031] Optionally, the centers of the lower frame component 1 and the upper frame component 2 can be aligned, which is the optimal solution. They can also be left unaligned, which can still achieve the goal of increasing the internal space of the cab frame structure.

[0032] In this embodiment, both the lower frame assembly 1 and the upper frame assembly 2 are hexagonal structures, and there are six connecting columns 3. The cab frame of a grader in the prior art is generally a five-column structure. The cab frame structure with six connecting columns 3 has a more reasonable spatial layout than the five-column structure, and is more conducive to increasing the internal space of the cab frame structure.

[0033] Specifically, the six connecting pillars 3 are divided into three groups, and the three groups of connecting pillars 3 are distributed alternately from the front end to the rear end of the cab frame structure. The first group of connecting pillars 3 includes two A pillars 31 that are spaced apart along the left and right directions of the cab frame structure. The second group of connecting pillars 3 includes two B pillars 32 that are spaced apart along the left and right directions of the cab frame structure. The third group of connecting pillars 3 includes two C pillars 33 that are spaced apart along the left and right directions of the cab frame structure. The distance between the two A pillars 31 and the distance between the two C pillars 33 are both smaller than the distance between the two B pillars 32. This structure allows for a larger space in the driving and riding position, further improving driving comfort.

[0034] In order to improve the working field of vision of the grader's blade, the distance between the two A-pillars 31 is equal to the distance between the two front wheels of the grader, so that the driver and passengers no longer need to lean to the side to observe the working area of ​​the blade during the operation of the grader.

[0035] To further improve the internal space of the cab frame structure, specifically, the lower frame assembly 1 includes a lower connecting plate 11. The lower connecting plate 11 includes a central connecting part 111 and side connecting parts 112 disposed at both ends of the central connecting part 111. The central connecting part 111 is connected between two C-pillars 33. One side connecting part 112 is connected between a C-pillar 33 and a B-pillar 32 located on one side. The other side connecting part 112 is connected between another C-pillar 33 and another B-pillar 32 located on the other side. Both side connecting parts 112 are configured as arc-shaped structures that bulge outwards. The arc-shaped structure further improves the utilization rate of the internal space of the cab frame structure.

[0036] Furthermore, the lower frame assembly 1 also includes a first lower connecting rod 12 and two second lower connecting rods 13. The first lower connecting rod 12 connects between the two A-pillars 31, one second lower connecting rod 13 connects between the A-pillar 31 and B-pillar 32 on one side, and the other second lower connecting rod 13 connects between the A-pillar 31 and B-pillar 32 on the other side. This structure is simple, has low manufacturing cost, and is easy to assemble.

[0037] Optionally, the upper frame assembly 2 includes a first upper connecting rod 21, two second upper connecting rods 22, two third upper connecting rods 23, and a fourth upper connecting rod 24. The first upper connecting rod 21 is connected between the two A-pillars 31. One second upper connecting rod 22 is connected between one A-pillar 31 and one B-pillar 32 on one side. Another second upper connecting rod 22 is connected between another A-pillar 31 and another B-pillar 32 on the other side. One third upper connecting rod 23 is connected between one B-pillar 32 and one C-pillar 33 on one side. Another third upper connecting rod 23 is connected between another B-pillar 32 and another C-pillar 33 on the other side. The fourth upper connecting rod 24 is connected between the two C-pillars 33. This structure is simple, has low manufacturing cost, and is easy to assemble.

[0038] Furthermore, the upper frame assembly 2 also includes a middle crossbeam 25, a front longitudinal beam 26, and a rear longitudinal beam 27. The middle crossbeam 25 connects between the two B-pillars 32, the front longitudinal beam 26 connects between the first upper connecting rod 21 and the middle crossbeam 25, and the rear longitudinal beam 27 connects between the fourth upper connecting rod 24 and the middle crossbeam 25. Two rear longitudinal beams 27 can be provided, spaced apart. This structure improves the structural strength of the cab frame structure.

[0039] Furthermore, a first reinforcing rod 28 is provided between each of the two second upper connecting rods 22 and the front longitudinal beam 26, with both ends of the first reinforcing rod 28 connected to the front longitudinal beam 26 and the second upper connecting rod 22, respectively; a second reinforcing rod 29 is provided between the first reinforcing rod 28 and the middle cross beam 25, with both ends of the second reinforcing rod 29 connected to the first reinforcing rod 28 and the middle cross beam 25, respectively; a third reinforcing rod 210 is provided between the two rear longitudinal beams 27, with both ends of the third reinforcing rod 210 connected to the two rear longitudinal beams 27, respectively; and a fourth reinforcing rod 211 is provided between the third reinforcing rod 210 and the middle cross beam 25, with both ends of the fourth reinforcing rod 211 connected to the third reinforcing rod 210 and the middle cross beam 25, respectively. By providing the above-mentioned reinforcing rods, the structural strength of the cab frame structure is increased.

[0040] Optionally, the connecting column 3 is made of special-shaped steel pipe. The connecting column 3 is specially made according to the requirements, that is, the A column 31, B column 32 and C column 33 are all made of special-shaped steel pipe, which effectively improves the strength of the cab frame structure and can meet the requirements of the 40T anti-rollover capability of large mining graders.

[0041] This utility model also provides a grader, including the above-mentioned cab frame structure.

[0042] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A cab frame structure, used on a grader, characterized in that, The cab frame structure includes a lower frame assembly (1), an upper frame assembly (2), and connecting columns (3). The lower frame assembly (1) and the upper frame assembly (2) are both polygonal structures with the same number of sides. The lower frame assembly (1) and the upper frame assembly (2) are distributed at intervals along the vertical direction. The connecting columns (3) are provided with the same number of sides as the polygonal structures. The two ends of each connecting column (3) are respectively connected to the corresponding corner positions of the lower frame assembly (1) and the upper frame assembly (2). The projection of the lower frame assembly (1) along the vertical direction coincides with the projection of the upper frame assembly (2) along the vertical direction, and the projected area of ​​the upper frame assembly (2) is larger than the projected area of ​​the lower frame assembly (1).

2. The cab frame structure according to claim 1, characterized in that, Both the lower shelf assembly (1) and the upper shelf assembly (2) are hexagonal structures, and six connecting columns (3) are provided.

3. The cab frame structure according to claim 2, characterized in that, The six connecting columns (3) are divided into three groups of connecting columns (3), and the three groups of connecting columns (3) are distributed at intervals from the front end to the rear end of the cab frame structure. The first group of connecting columns (3) includes two A-columns (31) spaced apart along the left and right directions of the cab frame structure; the second group of connecting columns (3) includes two B-columns (32) spaced apart along the left and right directions of the cab frame structure; and the third group of connecting columns (3) includes two C-columns (33) spaced apart along the left and right directions of the cab frame structure. The distance between the two A-columns (31) and the distance between the two C-columns (33) are both smaller than the distance between the two B-columns (32).

4. The cab frame structure according to claim 3, characterized in that, The distance between the two A-pillars (31) is equal to the distance between the two front wheels of the grader.

5. The cab frame structure according to claim 3, characterized in that, The lower frame assembly (1) includes a lower connecting plate (11), which includes a central connecting part (111) and side connecting parts (112) disposed at both ends of the central connecting part (111). The central connecting part (111) is connected between two C-pillars (33), one side connecting part (112) is connected between one C-pillar (33) and one B-pillar (32), and the other side connecting part (112) is connected between another C-pillar (33) and another B-pillar (32). Both side connecting parts (112) are configured as arc-shaped structures protruding outward.

6. The cab frame structure according to claim 3, characterized in that, The lower frame assembly (1) further includes a first lower link (12) and two second lower links (13). The first lower link (12) is connected between the two A-pillars (31), one second lower link (13) is connected between one A-pillar (31) and one B-pillar (32), and the other second lower link (13) is connected between another A-pillar (31) and another B-pillar (32).

7. The cab frame structure according to claim 3, characterized in that, The upper frame assembly (2) includes a first upper link (21), two second upper links (22), two third upper links (23) and a fourth upper link (24). The first upper link (21) is connected between two A-pillars (31), one second upper link (22) is connected between one A-pillar (31) and one B-pillar (32), another second upper link (22) is connected between another A-pillar (31) and another B-pillar (32), one third upper link (23) is connected between one B-pillar (32) and one C-pillar (33), another third upper link (23) is connected between another B-pillar (32) and another C-pillar (33), and the fourth upper link (24) is connected between two C-pillars (33).

8. The cab frame structure according to claim 7, characterized in that, The upper frame assembly (2) also includes a middle crossbeam (25), a front longitudinal beam (26), and a rear longitudinal beam (27). The middle crossbeam (25) is connected between the two B-pillars (32), the front longitudinal beam (26) is connected between the first upper connecting rod (21) and the front longitudinal beam (26), and the rear longitudinal beam (27) is connected between the fourth upper connecting rod (24) and the middle crossbeam (25).

9. The cab frame structure according to any one of claims 1-8, characterized in that, The connecting column (3) is made of shaped steel pipe.

10. A grader, characterized in that, Includes the cab frame structure described in any one of claims 1-9 above.

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