Cab anti-rolling framework for large-tonnage mining road roller
By adding reinforcement ribs to the columns and beams of the cab of the large-tonnage mining roller, an anti-roll skeleton with a hollow structure is formed, which solves the anti-roll problem of the large-tonnage roller cab and reduces the R&D cost and cycle.
Patent Information
- Application Number
- CN202510863071.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-25
- Publication Date
- 2025-08-22
AI Technical Summary
The anti-roll structure design of the cab of the large-tonnage mining roller is difficult to meet the high load-bearing requirements without changing the appearance and overall size of the cab. The existing solutions need to be reinvested in welding tools and molds, resulting in a long R&D cycle and high cost.
Based on the small tonnage ordinary cab skeleton, reinforcement ribs are added to the columns and beams on the bearing path, and special-shaped pipes and plates are welded to form a hollow structure to enhance the anti-rolling ability of the cab, while keeping the cab wiring and human movement space unaffected.
It has achieved improvement of anti-rolling capabilities without changing the appearance and size of the cab, reducing R&D cycle and cost investment, and simplifying the operation process.
Smart Images
Figure CN120517501A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to an anti-rollover frame for a cab of a large-tonnage mining roller, belonging to the technical field of cabs for mining engineering machinery. Background Art
[0002] Rollers are prone to rollover accidents when operating in complex mining environments. Due to the limited overall layout of rollers, the industry generally does not equip separate rollover bars on the frame or outside the cab. Instead, the rollover structure is integrated into the overall cab structure. To ensure a clear view of the entire machine, the left and right frames of the roller cab are generally devoid of A-pillars, with only B and C-pillars. According to the national standard GB / T 17922-2014 and the international standard ISO 3471-2008, the cabs of large-tonnage rollers must have high lateral load-bearing capacity and lateral energy absorption. The structural design of the rollover bar in the cabs of large-tonnage mining rollers (such as 39-ton rollers) is a recognized difficulty within the industry.
[0003] Rollers of varying tonnages within the same series typically range from the smallest in the industry at around 7 tons to the largest at around 39 tons, representing a significant disparity in tonnage. While standard profiles can generally meet the rollover requirements of small-tonnage roller cabs, the industry typically redefines the cab's overall dimensions for larger-tonnage roller cabs used in mining environments, increasing the cross-sectional dimensions of the columns and beams along the load path and reinvesting in welding tooling and interior and exterior molds. This increased column cross-section not only compromises visibility but also increases the development cycle, investment, and time-consuming effort. Summary of the Invention
[0004] The present invention aims to overcome the shortcomings of the prior art by providing a rollover prevention framework for the cab of a large-tonnage mining roller. This framework, based on the framework of a conventional small-tonnage cab, achieves the rollover resistance requirements of large-tonnage mining roller cabs by welding additional reinforcement ribs within the columns and crossbeams along the load path, without changing the exterior design and overall dimensions of the cabs in the same series. This design maintains the wiring space within the cab columns and the space for human movement within the cab, eliminates the need for new welding tooling and interior and exterior molds, shortens the R&D cycle, reduces investment costs, and simplifies operation.
[0005] To achieve the above object, the present invention is implemented by adopting the following technical solutions: In a first aspect, the present invention provides a cab anti-rollover frame for a large-tonnage mining roller, comprising: The left and right frames are symmetrically arranged and both are welded together to form a closed door-shaped frame with B-pillars, C-pillars, upper beams and lower beams; The top front crossbeam and the top rear crossbeam connect the tops of the left frame and the right frame laterally; The bottom front crossbeam and the bottom rear crossbeam connect the bottom of the left frame and the bottom of the right frame laterally; a rear center cross member, the rear center cross member transversely connecting the middle portions of the C-pillars of the left and right frames; Wherein: the B-pillar, C-pillar, upper beam and lower beam are all made of special-shaped pipes with internal plug-welded reinforcement ribs; The reinforcing ribs are welded together to form a complete cross section, with a hollow channel reserved inside; Rib plates are welded to the spliced ends of the top front crossbeam, the top rear crossbeam, the bottom front crossbeam, the bottom rear crossbeam, the left frame and the right frame.
[0006] Furthermore, the C-pillar is a special-shaped tube structure having a corner in the middle, and the rear center cross beam is located in the middle of the corner area of the C-pillar.
[0007] Furthermore, the B-pillar is a special-shaped tube structure inclined forward.
[0008] Furthermore, the bottom front cross beam, the bottom rear cross beam and the rear middle cross beam are made of special-shaped tubes, rectangular tubes or welded plates.
[0009] Furthermore, the ribs are triangular ribs welded to the connection nodes of the top front crossbeam, the top rear crossbeam and the B-pillar and C-pillar.
[0010] Furthermore, the cross-sectional dimension of the B-pillar is smaller than that of the C-pillar, and the upper beam and the lower beam adopt special-shaped tubes with the same cross-section.
[0011] Furthermore, the C-pillar includes a welding plate, a lower left special-shaped tube, and an upper left special-shaped tube. The welding plate, the lower left special-shaped tube, and the upper left special-shaped tube are assembled and fixed by plug welding.
[0012] Furthermore, the inflection angle of the C-pillar is 90-170°.
[0013] Furthermore, the special-shaped pipe and the reinforcing rib are clearance-fitted and fixed as a whole by plug welding.
[0014] Furthermore, the plug welding between the special-shaped pipe and the reinforcement rib is a multi-hole plug welding form, and the welding holes are evenly distributed along the length direction of the pipe.
[0015] Compared with the prior art, the present invention has the following beneficial effects: This invention provides a cab anti-rollover frame for large-tonnage mining rollers. Based on the framework of a conventional small-tonnage cab, this structure achieves the load-bearing requirements of large-tonnage mining roller cab anti-rollover requirements by welding additional reinforcement ribs into the columns and crossbeams along the load path, without changing the exterior design and overall dimensions of the cabs in the same series. This design maintains the wiring space within the cab columns and the space for human movement within the cab, while also eliminating the need for new welding tooling and interior and exterior molds. This shortens the R&D cycle, reduces investment costs, and simplifies operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a structural diagram of the anti-rollover frame of the cab of a 39T mining roller provided by an embodiment of the present invention; Figure 2 This is a diagram of the left skeleton structure provided by an embodiment of the present invention; Figure 3 is a cross-sectional view of a B-pillar provided by an embodiment of the present invention; Figure 4 is a cross-sectional view of a C-pillar provided by an embodiment of the present invention; Figure 5 This is a structural diagram of a C-pillar provided by an embodiment of the present invention; Figure 6 It is a cross-sectional view of the upper beam and the lower beam provided by an embodiment of the present invention.
[0017] In the figure: 1. Left frame; 2. Right frame; 3. Top front crossbeam; 4. Top rear crossbeam; 5. Bottom front crossbeam; 6. Bottom rear crossbeam; 7. Rear center crossbeam; 8. Rib plate; 11. B-pillar; 12. C-pillar; 13. Upper beam; 14. Lower beam; 121. Welding plate; 122. Lower left special-shaped tube; 123. Upper left special-shaped tube. DETAILED DESCRIPTION
[0018] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.
[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are 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 cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.
[0020] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.
[0021] Example 1, as Figures 1-6As shown, this embodiment introduces an anti-rollover frame for the cab of a large-tonnage mining roller, comprising: a left frame 1, a right frame 2, a top front crossbeam 3, a top rear crossbeam 4, a bottom front crossbeam 5, a bottom rear crossbeam 6, a rear middle crossbeam 7 and a triangular rib 8. All of the above components are spliced together to form a stable cab load-bearing frame. The left frame 1 and the right frame 2 are symmetrical structures, and both are welded together by B-pillars 11, C-pillars 12, upper beams 13, and lower beams 14 to form stable left and right door frames. In this embodiment, the B-pillar is in a forward-leaning form, and the C-pillar is in an inclined corner form. The B-pillars 11, C-pillars 12, upper beams 13, and lower beams 14 included in the left and right frames are all spliced together by plug-welded reinforcement ribs inside special-shaped pipes, and there must be a gap fit between the special-shaped pipes and the reinforcement ribs. The plug-welded reinforcement ribs are formed into a hollow structure by pipes and plates welded into a complete cross-section. In this embodiment, the reinforcement ribs of the C-pillar 12 of the left frame 1 are welded plates 121. The welded plates 121 are welded in advance, and then the upper left special-shaped tube 123 and the lower left special-shaped tube 122 are assembled from the upper and lower ends, and finally the plug welding and smoothing process is completed. In this embodiment, in order to ensure the field of view of the entire machine, the cross-section of the B-pillar 11 is much smaller than the cross-section of the C-pillar 12. The upper beam 13 and the lower beam 14 adopt the same cross-sectional structure. The bottom front crossbeam 5, the bottom rear crossbeam 6 and the rear middle crossbeam 7 are plate welded parts. When the top front crossbeam 3, the top rear crossbeam 4, the bottom front crossbeam 5, and the bottom rear crossbeam are spliced with the left frame 1 and the right frame 2, triangular ribs 8 are used to weld and reinforce the two ends. The cab anti-rollover frame of this embodiment uses 45# steel special-shaped pipes and QSTE380TM brand plates, and has passed the 39T anti-rollover certification in the laboratory.
[0022] The anti-rollover frame for the cab of a large-tonnage mining roller provided in this embodiment achieves the load-bearing requirements of large-tonnage mining rollers by welding reinforcing ribs into the columns and crossbeams along the load path, without changing the appearance and overall dimensions of the cabs in the same series. This design solution not only maintains the wiring space within the cab columns and the space for human movement within the cab, but also eliminates the need for new welding tooling and interior and exterior molds, shortening the R&D cycle, reducing investment costs, and simplifying operation.
[0023] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.
Claims
1. A cab anti-rollover frame for a large-tonnage mining roller, characterized in that: include: The left frame (1) and the right frame (2) are symmetrically arranged and both are welded together to form a closed door-shaped frame by a B-pillar (11), a C-pillar (12), an upper beam (13), and a lower beam (14); A top front crossbeam (3) and a top rear crossbeam (4), which transversely connect the tops of the left frame (1) and the right frame (2); A bottom front crossbeam (5) and a bottom rear crossbeam (6), which transversely connect the bottoms of the left frame (1) and the right frame (2); A rear middle cross beam (7), the rear middle cross beam (7) transversely connecting the middle portions of the C-pillars (12) of the left frame (1) and the right frame (2); Wherein: the B-pillar (11), C-pillar (12), upper beam (13), and lower beam (14) are all composed of special-shaped pipes with internal plug-welded reinforcement ribs; The reinforcing ribs are welded together to form a complete cross section, with a hollow channel reserved inside; Rib plates (8) are welded to the spliced ends of the top front crossbeam (3), the top rear crossbeam (4), the bottom front crossbeam (5), the bottom rear crossbeam (6), the left frame (1), and the right frame (2).
2. The anti-rollover frame for the cab of a large-tonnage mining roller according to claim 1 is characterized in that: The C-pillar (12) is a special-shaped tube structure having a corner in the middle, and the rear center cross beam (7) is located in the middle of the corner area of the C-pillar (12).
3. The anti-rollover frame for the cab of a large-tonnage mining roller according to claim 1 is characterized in that: The B-pillar (11) is a special-shaped tube structure tilted forward.
4. The anti-rollover frame for the cab of a large-tonnage mining roller according to claim 1 is characterized in that: The bottom front cross beam (5), the bottom rear cross beam (6) and the rear middle cross beam (7) are made of special-shaped tubes, rectangular tubes or welded plates.
5. The anti-rollover frame for the cab of a large-tonnage mining roller according to claim 1 is characterized in that: The rib plate (8) is a triangular rib plate, welded to the connection nodes of the top front crossbeam (3), the top rear crossbeam (4) and the B-pillar (11), and the C-pillar (12).
6. The anti-rollover frame for the cab of a large-tonnage mining roller according to claim 1 is characterized in that: The cross-sectional dimensions of the B-pillar (11) are smaller than those of the C-pillar (12), and the upper beam (13) and the lower beam (14) use special-shaped tubes with the same cross-section.
7. The anti-rollover frame for the cab of a large-tonnage mining roller according to claim 1 is characterized in that: The C-pillar (12) comprises a welding plate (121), a lower left special-shaped tube (122), and an upper left special-shaped tube (123); the welding plate (121), the lower left special-shaped tube (122), and the upper left special-shaped tube (123) are assembled and fixed by plug welding.
8. The anti-rollover frame for the cab of a large-tonnage mining roller according to claim 1 is characterized in that: The inflection angle of the C-pillar (12) is 90-170°.
9. The anti-rollover frame for the cab of a large-tonnage mining roller according to claim 1, characterized in that: The special-shaped pipe and the reinforcing rib are clearance-fitted and fixed into one by plug welding.
10. The anti-rollover frame for the cab of a large-tonnage mining roller according to claim 1, characterized in that: The plug welding between the special-shaped pipe and the reinforcement rib is a multi-hole plug welding form, and the welding holes are evenly distributed along the length direction of the pipe.