A safety roll-over protection frame for a harvester canopy

Abstract

The utility model discloses a harvester sunshade safety anti -rollover frame, including the back -shaped frame, the top of back -shaped frame is equipped with the ceiling, and the bottom surface four corners of back -shaped frame are vertically fixed with the stand, and the stand is integrally formed with back -shaped frame, and the bottom end fixed connection base of stand, and the top of base is equipped with mounting hole, and the bolt is sleeved in mounting hole, and base is fixed on the frame through bolt, and the ceiling is the oxford cloth material quality, and is coated with the heat -insulating coating at its bottom, and the ceiling is fixed on the top of back -shaped frame through rivet. The utility model discloses through the arch beam, the inclined beam, the reinforcing rib and the strengthening beam and the wedge block composite structure of adding in back -shaped frame and stand, and these components are connected, support each other, and form the multidimensional force transmission and dispersion network, when the harvester is accidentally sideways or after turning, can effectively resist the impact and extrusion deformation, thereby props up a precious survival space for the driver, and the risk of injury and death in the tumbling accident due to the driver's cabin being crushed is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a safety anti-tipping frame for a harvester sunshade canopy. Background Technology

[0002] With the development of modern agriculture towards large-scale and intensive operations, large, high-efficiency self-propelled combine harvesters have become the mainstay of grain harvesting. To improve the operator's comfort, especially in high-temperature and strong sunlight environments, most harvesters are equipped with sunshades on the top or rear of the cab. These sunshades are typically constructed of a lightweight metal frame and roof, primarily for sun and rain protection; their design did not adequately consider overall machine safety. When moving on slopes, field ridges, ditch edges, or roads, slippery or uneven ground, or improper operation, can easily lead to sideways or rearward rollovers. In the event of a rollover accident, the sunshade frame, which only provides shade, will instantly collapse, offering no survival space for the operator and resulting in serious injuries or fatalities. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a safety anti-tipping frame for harvester sunshades.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a safety anti-tipping frame for a harvester sunshade, comprising a U-shaped frame, a canopy on the top surface of the U-shaped frame, and uprights fixed vertically at the four corners of the bottom surface of the U-shaped frame. The uprights are integrally formed with the U-shaped frame, and a base is fixedly connected to the bottom end of the uprights. Mounting holes are opened on the top surface of the base, and bolts are fitted into the mounting holes. The base is fixed to the frame by the bolts. The canopy is made of Oxford cloth and has a heat-insulating coating on its bottom. The canopy is fixed to the top surface of the U-shaped frame by rivets.

[0005] As a further description of the above technical solution: an arched beam is fixed between two adjacent columns.

[0006] As a further description of the above technical solution: two inclined beams are symmetrically fixed on the outer side of the arched beam.

[0007] As a further description of the above technical solution: the inclined beam is fixedly connected to the column.

[0008] As a further description of the above technical solution: the inclined beam is fixedly connected to the bottom surface of the spiral frame in a figure-eight shape.

[0009] As a further description of the above technical solution: the bottom surface of the U-shaped frame is vertically fixed with reinforcing ribs, and the bottom end of the reinforcing ribs is fixed to the top outer side of the arched beam.

[0010] As a further description of the above technical solution: wedge blocks are fixedly connected to the four inner corners of the spiral frame, and a reinforcing beam is fixedly connected between the four wedge blocks. The reinforcing beam is X-shaped, and a fan-shaped block is fixedly connected to each corner of the reinforcing beam. The wedge blocks and the reinforcing beam are integrally formed.

[0011] This utility model has the following beneficial effects: 1. Compared with existing technologies, this harvester sunshade safety anti-tipping frame uses a U-shaped frame and uprights integrally formed to create a stable main frame. Based on this, it innovatively adds arched beams, inclined beams (connected in a figure-eight shape), reinforcing ribs, and an X-shaped reinforcing beam and wedge block composite structure located inside the U-shaped frame. These components are interconnected and supportive, forming a multi-dimensional force transmission and dispersion network. The arched beams and inclined beams form a stable triangular structure, effectively dispersing impact force. The X-shaped reinforcing beams and wedge blocks further strengthen the rigidity of the frame nodes, forming a spatial mesh protection. When the harvester accidentally rolls over, this anti-tipping frame can effectively resist impact and compression deformation, avoiding instantaneous collapse like ordinary sunshades, thus providing the driver with a valuable survival space and greatly reducing the risk of injury or death due to the cab being crushed in a rollover accident.

[0012] 2. Compared with existing technologies, this harvester sunshade canopy safety anti-tipping frame uses lightweight and durable Oxford cloth for the canopy and has a heat-insulating coating on the bottom, ensuring good sunshade, rain protection and heat insulation effects, and continuing the core function of improving driving comfort; the entire anti-tipping frame is firmly installed on the frame with a base and bolts, which is reliable and easy to retrofit into existing harvesters; its structural design optimizes the layout as much as possible while ensuring strength, avoiding excessive interference with the driver's vision and daily operation, and achieving an effective balance between safety protection and operating comfort. Attached Figure Description

[0013] Figure 1 This is a three-dimensional view of the overall structure of a safety anti-tipping frame for a harvester sunshade proposed in this utility model; Figure 2 This is a front view of the overall structure of a safety anti-tipping frame for a harvester sunshade proposed in this utility model; Figure 3 This is a bottom view of the overall structure of a safety anti-tipping frame for a harvester sunshade proposed in this utility model.

[0014] Legend: 1. Column; 2. Base; 3. Arched beam; 4. Mounting hole; 5. Inclined beam; 6. U-shaped frame; 7. Canopy; 8. Reinforcing rib; 9. Fan-shaped block; 10. Reinforcing beam; 11. Wedge block. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Reference Figures 1 to 3 This utility model provides a safety anti-tipping frame for a harvester sunshade: it includes a U-shaped frame 6, with a canopy 7 on the top surface of the U-shaped frame 6. Vertical columns 1 are fixed at each of the four corners of the bottom surface of the U-shaped frame 6, and the columns 1 are integrally formed with the U-shaped frame 6. A base 2 is fixedly connected to the bottom end of the column 1. Mounting holes 4 are opened on the top surface of the base 2, and bolts are fitted into the mounting holes 4. The base 2 is fixed to the frame by bolts. The canopy 7 is made of Oxford cloth and has a heat-insulating coating on its bottom. The canopy 7 is fixed to the top surface of the U-shaped frame 6 by rivets. Adjacent columns 1 are connected together for support. An arched beam 3 is fixed, and two inclined beams 5 are symmetrically fixed on the outer side of the arched beam 3. The inclined beams 5 are fixedly connected to the column 1. The inclined beams 5 are fixedly connected to the bottom surface of the U-shaped frame 6 in a figure-eight shape. The bottom surface of the U-shaped frame 6 is vertically fixed with reinforcing ribs 8. The bottom end of the reinforcing ribs 8 is fixed to the top outer side of the arched beam 3. Wedge blocks 11 are fixedly connected to the four corners of the inner side of the U-shaped frame 6. The four wedge blocks 11 are used to fix a reinforcing beam 10. The reinforcing beam 10 is X-shaped. A fan-shaped block 9 is fixedly connected to each corner of the reinforcing beam 10. The wedge blocks 11 and the reinforcing beam 10 are integrally formed.

[0017] Working principle: When an accident occurs, the impact force acts on the anti-rollover frame; the force is first borne by the main frame of the U-shaped frame 6-column 1, and then dispersed in three dimensions through the triangular external support network composed of arched beams 3 and inclined beams 5. At the same time, it is reinforced in two planes and reinforced at the nodes through the internal mesh structure composed of wedge blocks 11 and X-shaped reinforcing beams 10; the reinforcing ribs 8 and other components provide additional support paths; all these components work together to transform the concentrated, destructive impact load into controllable internal stress (tensile and compressive stress) throughout the three-dimensional steel frame, and finally transferred to the sturdy frame through multiple paths; throughout the process, the frame undergoes limited, overall elastic deformation through its high rigidity and stability, rather than local brittle collapse, thereby maintaining a survival space above and around the cab sufficient to ensure the driver's safety; The core vertical support frame, integrally formed by the U-shaped frame 6 and four upright columns 1, is the first line of defense against loads. When the harvester overturns sideways or backwards, the impact force on the ground is first transmitted to the frame through the top U-shaped frame 6 or the side upright columns 1, and then transferred to the four upright columns 1 through the U-shaped frame 6. At this time, the arched beams 3 set between adjacent upright columns 1 play a crucial role. The arched structure inherently has good mechanical properties, which can diffuse the local stress concentrated at the connection point of the upright columns 1 to both sides along the arched curve, effectively avoiding node breakage caused by stress concentration. The inclined beams 5 (in a V-shape) fixed to the outside of the arched beams 3 and the upright columns 1, together with the upright columns 1, The arched beams 3 together form multiple triangular stable structures; when subjected to force, triangles can decompose forces from any direction into tensile and compressive forces along their edges without causing torsional deformation; when the frame is subjected to lateral impact, these inclined beams 5 can quickly convert the impact force into axial force of the components and transmit it to the more robust base 2 and frame through multiple triangular paths, greatly enhancing the frame's resistance to tilting and torsion. The reinforcing ribs 8, which are vertically fixed downwards from the bottom surface of the U-shaped frame 6, are connected at their bottom ends to the outer side of the top of the arched beams 3; this is equivalent to adding support points in the vertical plane. When the top is subjected to vertical downward pressure (such as the pressure of the vehicle body weight after a rollover), the reinforcing ribs 8 can help the U-shaped frame... The frame 6 directly transfers part of the load to the arched beam 3 and the inclined beam 5 support system below, preventing bending deformation in the middle of the frame 6. The wedge-shaped blocks 11 fixed at the four corners inside the frame 6, and the X-shaped reinforcing beams 10 integrally formed with them, together constitute a highly rigid internal spatial mesh structure. The wedge-shaped blocks 11 reinforce the weakest connection point at the corner of the frame 6, increasing the connection area and structural moment of inertia, preventing cracking at the corner under complex stress. The X-shaped reinforcing beams 10 are typical shear-resistant and deformation-resistant structures; regardless of the direction of the force acting on the frame 6, the X-shaped beams can convert a portion of it into tensile and compressive forces along its members; together with the wedges at the four corners... After the shape block 11 is fixed, this internal mesh structure firmly "binds" the four sides, which may have deformed independently, into a whole, significantly improving the rigidity and deformation resistance of the ring frame 6 in the plane, preventing it from becoming a parallelogram and becoming unstable under impact. The fan-shaped block 9 is located at each corner of the X-shaped reinforcing beam 10. Its function is to smooth the stress transition, prevent stress concentration at the intersection of the beams from causing cracks or fractures, and ensure the continuity of internal force transmission. The entire anti-tipping frame is rigidly connected to the harvester's sturdy frame through the base 2 and high-strength bolts. This means that the impact energy absorbed and dispersed by the entire three-dimensional frame will eventually be safely introduced into the main frame structure of the harvester.

[0018] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A safety anti-tipping frame for a harvester sunshade, comprising a U-shaped frame (6), characterized in that: The top surface of the spiral frame (6) is provided with a canopy (7). The four corners of the bottom surface of the spiral frame (6) are vertically fixed with columns (1). The columns (1) and the spiral frame (6) are integrally formed. The bottom end of the columns (1) is fixedly connected to the base (2). The top surface of the base (2) is provided with mounting holes (4). Bolts are fitted in the mounting holes (4). The base (2) is fixed to the frame by the bolts. The canopy (7) is made of Oxford cloth and has a heat insulation coating on its bottom. The canopy (7) is fixed to the top surface of the spiral frame (6) by rivets.

2. The safety anti-tipping frame for a harvester sunshade as described in claim 1, characterized in that: An arched beam (3) is fixed between two adjacent columns (1).

3. The safety anti-tipping frame for a harvester sunshade as described in claim 2, characterized in that: Two inclined beams (5) are symmetrically fixed on the outer side of the arched beam (3).

4. A safety anti-tipping frame for a harvester sunshade canopy according to claim 3, characterized in that: The inclined beam (5) is fixedly connected to the column (1).

5. A safety anti-tipping frame for a harvester sunshade canopy according to claim 3, characterized in that: The inclined beam (5) is fixedly connected to the bottom surface of the spiral frame (6) in a figure-eight shape.

6. A safety anti-tipping frame for a harvester sunshade canopy according to claim 2, characterized in that: The bottom surface of the spiral frame (6) is vertically fixed with reinforcing ribs (8), and the bottom end of the reinforcing ribs (8) is fixed to the top outer side of the arch beam (3).

7. A safety anti-tipping frame for a harvester sunshade as described in claim 1, characterized in that: The inner four corners of the spiral frame (6) are fixedly connected with wedge blocks (11), and the four wedge blocks (11) are together fixed with a reinforcing beam (10). The reinforcing beam (10) is X-shaped, and a fan-shaped block (9) is fixedly connected at each corner of the reinforcing beam (10). The wedge blocks (11) and the reinforcing beam (10) are integrally formed.

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