A machine for manufacturing I-beams

Abstract

The application relates to an I-shaped steel for a machine, which comprises a steel block body, characterized in that two notches are arranged on the surface of the steel block body and the two notches are symmetrically distributed on the steel block body, the shape of the notches is trapezoidal, the notches coincide with the symmetric center line on the steel block body, and the distance of the notches to the two ends of the steel block body is equal. Under the premise of meeting the bearing requirement, the application removes redundant materials through the notches, directly reduces the amount of steel, does not affect the core stress performance, the inclined edge of the trapezoidal structure has the function of dispersing stress, compared with a rectangular notch, the side edge of the trapezoidal notch can transmit the stress on the edge of the notch to the inside of the steel block body, stress concentration (the right angle of the rectangular notch is easy to form a stress dead angle and may crack under long-term stress) is avoided, and higher bending resistance and shearing resistance are maintained.

Description

Technical Field

[0001] This application relates to the fields of mechanical engineering and steel structure technology, and in particular to an I-beam for use in machines. Background Technology

[0002] Currently, I-beams are a common type of structural steel, widely used in mechanical equipment and building structures. Their load-bearing capacity and stability directly affect the performance of the overall structure.

[0003] In existing technologies, lightweight design of I-beams is mainly achieved through the following methods: first, rectangular slots are directly opened on the web of the I-beam to reduce material usage; second, high-strength steel is used to replace ordinary steel to reduce the cross-sectional dimensions.

[0004] Regarding the aforementioned technologies, the existing rectangular slot design of I-beams easily leads to stress concentration, reduces the fatigue life of I-beams, and makes it difficult to meet the requirements of long-term high-load use, thus affecting the use of I-beams. Utility Model Content

[0005] To address the issue that existing I-beams, with their rectangular slot design, tend to experience stress concentration, which reduces their fatigue life and makes them unsuitable for long-term high-load use, thus affecting their performance, this application provides an I-beam for use in machinery.

[0006] This application provides an I-beam for use on a machine, employing the following technical solution: The machine uses I-beams, including a steel block body. Two slots are opened on the surface of the steel block body, and the two slots are symmetrically distributed on the steel block body. The slots are trapezoidal in shape.

[0007] By adopting the above technical solution, redundant materials can be removed through the slot, directly reducing the amount of steel used without affecting the core load-bearing performance, while meeting the load-bearing requirements. At the same time, the hypotenuse of the trapezoidal structure has the function of "dispersing stress". Compared with the rectangular slot, the side of the trapezoid can transfer the stress at the edge of the slot to the inside of the steel block, avoiding stress concentration (the right angle of the rectangular slot is prone to forming stress dead angles, which may crack under long-term stress), and maintaining high bending and shear resistance.

[0008] Preferably, the groove coincides with the center line of symmetry on the steel block body, and the distance from the groove to both ends of the steel block body is equal.

[0009] By adopting the above technical solution, the coincidence of the slot with the center line of symmetry means that the slot is perfectly centered. At this time, the area where the material is removed by the slot is located near the neutral axis of the steel block body. This maximizes the weight reduction advantage of removing material from non-critical stress areas without affecting the load-bearing capacity of the steel block body. At the same time, the equal distance from the slot to both ends means that the slot divides the steel block body into three equal-length segments, and the length and cross-sectional shape of the two complete segments are completely consistent. When the steel block body is used as a support, the force at both ends will be evenly transmitted to the slotted segment in the middle through the complete segments. The force path is symmetrical and the length is the same, so there will be no difference in force transmission efficiency due to the distance between one end being too close or too far, which can significantly extend the service life.

[0010] Preferably, the edges of the steel block body away from the groove are all chamfered, and the chamfer radii of the edges of the steel block body away from the groove are equal.

[0011] By adopting the above technical solution, when the steel block body is subjected to vibration and impact loads, the edge is a region where stress is easily concentrated. The chamfer, through the arc transition, smoothly transmits the edge stress to the interior of the body, reducing edge cracking caused by stress concentration and extending the service life of the steel block body.

[0012] Preferably, the edges of the steel block body near the groove opening are all chamfered, and the chamfer radii of the edges of the steel block body near the groove opening are equal.

[0013] By adopting the above technical solution, the chamfering treatment changes the right-angled edge to a rounded transition, which can guide the stress to both sides of the groove and the interior of the body through a gentle curve, avoiding stress accumulation at sharp corners and significantly reducing the risk of cracking and deformation of the groove edge due to long-term load. At the same time, the equal radius of the chamfered corner of the steel block body near the groove ensures that the stress characteristics of all edges of the two symmetrical grooves are consistent, avoiding structural imbalance caused by insufficient chamfering on one side.

[0014] Preferably, the edge lines of the steel block body located within the groove are all chamfered, and the chamfer radii of the edge lines of the steel block body located within the groove are all equal.

[0015] By adopting the above technical solution, and by unifying the chamfer and radius of the inner edge of the groove, the transition shape of all edges in the groove is made completely consistent. This ensures that when the steel block is subjected to loads in any direction, the stress dispersion efficiency and deformation resistance on both sides are completely equal, avoiding force bias caused by local structural differences.

[0016] Preferably, the chamfer radius of the edge line of the steel block body located inside the groove is smaller than the chamfer radius of the edge line of the steel block body near the groove.

[0017] By adopting the above technical solution, by making the chamfer radius of the edge line of the steel block body located inside the groove smaller than the chamfer radius of the edge line of the steel block body near the groove, the large radius chamfer can more fully disperse stress, while enhancing the deformation resistance of the connection between the groove and the body. The small radius chamfer can eliminate the stress concentration of sharp corners through the rounded transition, and will not occupy too much internal space of the groove, thus balancing stress dispersion and groove function preservation.

[0018] Preferably, the chamfer radius of the edge line of the steel block body away from the groove is greater than the chamfer radius of the edge line of the steel block body near the groove.

[0019] By adopting the above technical solution, the chamfer radius of the edge line of the steel block body near the groove is a small radius chamfer, which can eliminate sharp corners through the arc transition (avoiding scratching the mating parts during groove assembly) and will not occupy too much functional space near the groove, thus finding a balance between "basic protection" and "groove function retention".

[0020] Preferably, the steel block body is made of Q235 steel or Q355 steel.

[0021] By adopting the above technical solution, the material of the steel block body is Q235 steel or Q355 steel. The hardness of the two types of steel is moderate, and a relatively smooth cut can be obtained whether it is mechanical cutting or thermal cutting. It is especially suitable for fine processing of the inner edge of the groove, avoiding excessive wear of processing tools due to excessively hard materials.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. Under the premise of meeting the load-bearing requirements, redundant materials are removed through the slot, directly reducing the amount of steel used without affecting the core load-bearing performance. At the same time, the hypotenuse of the trapezoidal structure has the function of "dispersing stress". Compared with the rectangular slot, the side of the trapezoid can transfer the stress at the edge of the slot to the inside of the steel block, avoiding stress concentration (the right angle of the rectangular slot is prone to forming stress dead angles, which may crack under long-term stress), and maintaining high bending and shear resistance. 2. When the steel block body is subjected to vibration and impact loads, the edges are areas where stress is easily concentrated. The chamfering smoothly transfers the edge stress to the interior of the body through the rounded transition, reducing edge cracking caused by stress concentration and extending the service life of the steel block body. 3. By making the chamfer radius of the edge line of the steel block body located inside the groove smaller than the chamfer radius of the edge line of the steel block body near the groove, the large radius chamfer can more fully disperse stress, while enhancing the deformation resistance of the connection between the groove and the body. The small radius chamfer can eliminate the stress concentration of sharp corners through the rounded transition, and will not occupy too much internal space of the groove, thus balancing stress dispersion and groove function preservation. Attached Figure Description

[0023] Figure 1 It is a front-view 3D diagram of the I-beams used on the machine; Figure 2 It is a right-side 3D view of the machine using I-beams; Figure 3 It is a top view of the I-beams used on the machine.

[0024] Reference numerals: 1. Steel block body; 2. Groove. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1 - Appendix Figure 3 This application will be described in further detail.

[0026] This application discloses an embodiment of an I-beam used on a machine.

[0027] Reference Figure 1 and Figure 2 An I-beam for use in a machine includes a steel block body 1. Two slots 2 are formed on the surface of the steel block body 1, and the two slots 2 are symmetrically distributed on the steel block body 1. The slots 2 are trapezoidal in shape. Under the premise of meeting the load-bearing requirements, redundant materials are removed through the slots 2, directly reducing the amount of steel used without affecting the core load-bearing performance. At the same time, the hypotenuse of the trapezoidal structure has the function of "dispersing stress". Compared with the rectangular slots 2, the sides of the trapezoid can transfer the stress at the edge of the slots 2 to the interior of the steel block body 1, avoiding stress concentration and maintaining high bending and shear resistance.

[0028] The steel block body 1 is made of Q235 steel or Q355 steel. The use of Q235 steel or Q355 steel as the material of the steel block body 1 provides moderate hardness, which can produce a relatively smooth cut whether it is mechanical cutting or thermal cutting. It is especially suitable for fine processing of the inner edge of the groove 2, avoiding excessive wear of processing tools due to excessively hard material.

[0029] refer to Figure 1 and Figure 2 The groove 2 coincides with the center line of symmetry on the steel block body 1, and the distance from the groove 2 to both ends of the steel block body 1 is equal. By aligning the groove 2 with the center line of symmetry, it means that the groove 2 is completely centered. At this time, the area where the material is removed by the groove 2 is located near the neutral axis of the steel block body 1. This maximizes the weight reduction advantage of removing material from non-critical stress areas without affecting the load-bearing capacity of the steel block body 1. At the same time, the equal distance from the groove 2 to both ends means that the groove 2 divides the steel block body 1 into three equal segments, and the length and cross-sectional shape of the complete segments at both ends are completely consistent. When the steel block body 1 is used as a support, the force at both ends will be evenly transmitted to the middle grooved segment through the complete segments. The force path is symmetrical and the length is the same, so there will be no difference in force transmission efficiency due to the distance between one end being too close or too far, which can significantly extend the service life.

[0030] refer to Figure 1 and Figure 2 All edges of the steel block body 1 away from the groove 2 are chamfered, and the chamfer radii of the edges of the steel block body 1 away from the groove 2 are equal. This allows the steel block body 1 to withstand vibration and impact loads, where the edges are areas where stress tends to concentrate. The chamfer, through the arc transition, smoothly transmits the edge stress to the interior of the body, reducing edge cracking caused by stress concentration and extending the service life of the steel block body 1.

[0031] refer to Figure 2 and Figure 3 The edges of the steel block body 1 near the slot 2 are all chamfered, and the chamfer radii of the edges of the steel block body 1 near the slot 2 are equal. By chamfering the edges to make them rounded transitions, stress can be guided to both sides of the slot 2 and the interior of the body through a smooth curve, avoiding stress accumulation at sharp corners and significantly reducing the risk of cracking and deformation of the slot 2 edges due to long-term load. At the same time, the equal chamfer radii of the edges of the steel block body 1 near the slot 2 ensure that the stress characteristics of all edges of the two symmetrical slots 2 are consistent, avoiding structural imbalance caused by insufficient chamfering on one side.

[0032] refer to Figure 2 and Figure 3 All edges of the steel block body 1 located within the groove 2 are chamfered, and the chamfer radii of the edges of the steel block body 1 located within the groove 2 are all equal. By unifying the chamfers and radii of the edges within the groove 2, the transition shape of all edges within the groove 2 is made completely consistent, ensuring that the stress dispersion efficiency and deformation resistance on both sides are completely equal when the steel block is subjected to loads in any direction, thus avoiding force bias caused by local structural differences.

[0033] refer to Figure 3 The chamfer radius of the edge line of the steel block body 1 located within the groove 2 is smaller than that of the edge line of the steel block body 1 closest to the groove 2, while the chamfer radius of the edge line of the steel block body 1 furthest from the groove 2 is larger than that of the edge line of the steel block body 1 closest to the groove 2. By making the chamfer radius of the edge line of the steel block body 1 located within the groove 2 smaller than that of the edge line of the steel block body 1 closest to the groove 2, the larger radius chamfer can more fully disperse stress, while enhancing the deformation resistance of the connection between the groove 2 and the body. The smaller radius chamfer can eliminate the stress concentration of sharp corners through the rounded transition, without occupying too much internal space of the groove 2, thus balancing stress dispersion and the preservation of the function of the groove 2. At the same time, the smaller radius chamfer of the edge line of the steel block body 1 closest to the groove 2 can eliminate sharp corners through the rounded transition to avoid scratching the mating parts during the assembly of the groove 2, without occupying too much functional space near the groove 2, thus finding a balance between basic protection and the preservation of the function of the groove 2.

[0034] The implementation principle of this application embodiment is as follows: In implementation, by opening a trapezoidal slot 2 on the steel block body 1, the inclined side of the slot 2 can disperse stress and avoid stress concentration. At the same time, the slot 2 is centered, and the connecting edge of the steel block body 1 and the slot 2 is chamfered so that the area where the material is removed is located near the neutral axis of the steel block body 1, maximizing the weight reduction advantage. The chamfering treatment smoothly transmits the edge stress to the interior of the body through the arc transition, reducing stress concentration.

[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An I-beam for use in a machine, comprising a steel block body (1), characterized in that, Two slots (2) are opened on the surface of the steel block body (1), and the two slots (2) are symmetrically distributed on the steel block body (1). The slots (2) are trapezoidal in shape.

2. The I-beam for use on a machine according to claim 1, characterized in that, The slot (2) coincides with the center line of symmetry on the steel block body (1), and the distance from the slot (2) to both ends of the steel block body (1) is equal.

3. The I-beam for use on a machine according to claim 1, characterized in that, The edge lines of the steel block body (1) away from the groove (2) are all chamfered, and the chamfer radii of the edge lines of the steel block body (1) away from the groove (2) are equal.

4. The I-beam for use on a machine according to claim 1, characterized in that, The edge lines of the steel block body (1) near the groove (2) are all chamfered, and the chamfer radii of the edge lines of the steel block body (1) near the groove (2) are equal.

5. The I-beam for use on a machine according to claim 1, characterized in that, The edge lines of the steel block body (1) located in the groove (2) are all chamfered, and the chamfer radii of the edge lines of the steel block body (1) located in the groove (2) are all equal.

6. The I-beam for use on a machine according to claim 1, characterized in that, The chamfer radius of the edge line of the steel block body (1) located inside the groove (2) is smaller than the chamfer radius of the edge line of the steel block body (1) near the groove (2).

7. The I-beam for use on a machine according to claim 1, characterized in that, The chamfer radius of the edge line of the steel block body (1) away from the groove (2) is greater than the chamfer radius of the edge line of the steel block body (1) near the groove (2).

8. The I-beam for use on a machine according to claim 1, characterized in that, The steel block body (1) is made of Q235 steel or Q355 steel.

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