Engine generator adjusting support

Abstract

The utility model discloses an engine generator adjusting support relates to engine field. The engine generator adjusting support, including support main part, stress area and non stress area, the end of support main part is provided with the mounting ring, stress area and non stress area are set up in the end of support main part, and the periphery is set up in the outside of mounting ring, the non stress area is set to the welding spot arrangement area, and in the area of non stress area, optional single welding spot is provided. The engine generator adjusting support, through fatigue analysis, the area of the large safety factor of support main part is set to non stress area, the non stress area is set to the welding spot arrangement area, and in the area of non stress area, optional single welding spot is provided, to reduce the welding heat affected zone area, and avoid the influence of welding spot to structure stress, only in the non stress area arrangement single welding spot, avoided the influence of welding spot to structure stress, promoted the overall strength of support.

Description

Technical Field

[0001] This utility model relates to the field of engine technology, specifically to an engine generator adjustment bracket. Background Technology

[0002] In the automotive manufacturing industry, the engine generator adjustment bracket is a key component, and its stability and durability are crucial to the performance and safety of the entire vehicle.

[0003] A welded combined engine-generator adjustment bracket, originally designed for a specific vehicle model and having undergone relevant verification and testing, was used as a mass-production borrowed component. However, during durability testing of the new model, the original bracket fractured, with the crack originating near the weld points. The original bracket, made of cast iron, contained three weld points and was used to connect the engine and generator, adjusting the generator's position. In the new model, due to space constraints and structural adjustments, the material of the generator lower bracket was changed from cast iron to cast aluminum, resulting in a decrease in system modal characteristics and increased vibration.

[0004] The actual vibration acceleration test results showed that the maximum vibration acceleration of the faulty vehicle was 20.82g, while that of the mass-produced vehicle was only 15.3g. Therefore, it was determined that the fracture was likely caused by increased system vibration, and the stress point was the weld point influence area, where the material properties deteriorated, leading to the fracture. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an engine generator adjustment bracket, which solves the problem that existing generator lower brackets break due to increased system vibration and the fact that the stress point is the weld point influence zone, resulting in decreased material properties.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an engine generator adjustment bracket, comprising: The bracket body has a mounting ring at one end; The stress-bearing area and the non-stress-bearing area are located at the ends of the support body and are arranged in a circular pattern on the outside of the mounting ring. The non-stress-bearing area is set as a welding point arrangement area, and a single welding point can be selectively arranged in the non-stress-bearing area.

[0007] Preferably, a through shaft hole is provided between the end of the bracket body and the mounting ring.

[0008] Preferably, the outer side of the support body is provided with a first folded edge.

[0009] Preferably, the bracket body has a second folded edge at the end away from the mounting ring, and the bracket body, the first folded edge, and the second folded edge are integrally formed.

[0010] Preferably, the bracket body has a first mounting hole that runs vertically through it.

[0011] Preferably, the second folded edge has a second mounting hole that extends through both sides.

[0012] Preferably, the non-stressed area is arc-shaped with an arc angle of 135°.

[0013] This utility model discloses an engine generator adjustment bracket, which has the following beneficial effects: 1. This engine generator adjustment bracket, through fatigue analysis, designates areas with a high safety factor on the bracket body as non-stressed zones. These non-stressed zones are then designated as weld point areas, with selectable individual weld points within these zones. This reduces the area of ​​the welding heat-affected zone and avoids the weld points' impact on the structural stress. By placing only individual weld points in the non-stressed zones, the influence of weld points on structural stress is avoided, thereby improving the overall strength of the bracket. Reducing the number of weld points helps lower the bracket's weight, achieving lightweight design and contributing to improved fuel economy and performance of the vehicle. Since only the weld points are optimized without requiring major structural modifications to the entire bracket, manufacturing costs and development cycles are reduced.

[0014] 2. The engine-generator adjustment bracket is connected to the engine and generator via a weld point, enabling generator position adjustment. Furthermore, due to the rational arrangement of the weld points, the bracket maintains stable structural performance under vibration and load. Through fatigue CAE analysis and actual durability tests, the optimized bracket, excluding stress-ineffective areas such as contact points, has a minimum fatigue safety factor of 1.349, exceeding the CAE evaluation standard of 1.1, thus meeting the strength requirements. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the planar structure of the present invention; Figure 3 This is a side perspective view of the present invention. Figure 4 This is a schematic diagram of the CAE analysis results of the support fatigue of this utility model.

[0017] In the figure: 1. Bracket body; 11. Mounting ring; 12. Shaft hole; 13. First folded edge; 14. Second folded edge; 15. First mounting hole; 16. Second mounting hole; 2. Stress-bearing area; 3. Non-stress-bearing area; 31. Weld point. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] This application provides an engine generator adjustment bracket that solves the problem of existing generator lower brackets fracture due to increased system vibration and the degradation of material properties caused by the stress points being the weld-affected zone. Through fatigue analysis, a non-stressed zone 3 is designated on the bracket body 1 with a high safety factor. This non-stressed zone 3 is then designated as the weld-arrangement area, and individual weld points 31 can be selectively placed within this area to reduce the area of ​​the weld heat-affected zone and avoid the influence of weld points 31 on the structural stress. By placing only individual weld points 31 in the non-stressed zone 3, the influence of weld points 31 on the structural stress is avoided, thereby improving the overall strength of the bracket.

[0020] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0021] This utility model discloses an engine generator adjustment bracket.

[0022] According to the appendix Figure 1-4 As shown, it includes: The bracket body 1 has an installation ring 11 at its end; The stress zone 2 and the non-stress zone 3 are located at the ends of the support body 1 and are arranged in a circular pattern on the outside of the mounting ring 11. The non-stress zone 3 is set as the welding point arrangement area, and a single welding point 31 can be optionally set in the area of ​​the non-stress zone 3.

[0023] Fatigue analysis was used to designate a non-stressed area 3 on the main body 1 of the bracket with a high safety factor. This non-stressed area 3 was then designated as a weld point arrangement area, with selectable individual weld points 31 placed within it. This reduced the area of ​​the weld heat-affected zone and avoided the influence of weld points 31 on the structural stress. By placing only a single weld point 31 in the non-stressed area 3, the impact of weld points 31 on the structural stress was avoided, thereby improving the overall strength of the bracket. Reducing the number of weld points 31 helps to reduce the weight of the bracket, achieving a lightweight design and contributing to improved fuel economy and performance of the vehicle. Since only weld points 31 were optimized without requiring major structural modifications to the entire bracket, manufacturing costs and development cycles were reduced.

[0024] Furthermore, a through shaft hole 12 is provided between the end of the bracket body 1 and the mounting ring 11.

[0025] Furthermore, a first folded edge 13 is provided on the outer side of the support body 1.

[0026] Furthermore, a second folded edge 14 is provided at the end of the bracket body 1 away from the mounting ring 11, and the bracket body 1, the first folded edge 13 and the second folded edge 14 are manufactured as a single piece.

[0027] Furthermore, the main body 1 of the bracket has a first mounting hole 15 that runs vertically through it.

[0028] Furthermore, the second folded edge 14 has a second mounting hole 16 that extends through both sides.

[0029] Furthermore, the non-stressed area 3 is set in an arc shape with an arc angle of 135°.

[0030] Fatigue analysis was used to designate a non-stressed area 3 on the main body 1 of the bracket with a high safety factor. This non-stressed area 3 was then designated as a weld point arrangement area, with selectable individual weld points 31 placed within it. This reduced the area of ​​the weld heat-affected zone and avoided the influence of weld points 31 on the structural stress. By placing only a single weld point 31 in the non-stressed area 3, the impact of weld points 31 on the structural stress was avoided, thereby improving the overall strength of the bracket. Reducing the number of weld points 31 helps to reduce the weight of the bracket, achieving a lightweight design and contributing to improved fuel economy and performance of the vehicle. Since only weld points 31 were optimized without requiring major structural modifications to the entire bracket, manufacturing costs and development cycles were reduced.

[0031] The bracket is connected to the engine and generator via weld point 31, enabling the generator's position adjustment function. Simultaneously, due to the reasonable arrangement of weld points 31, the bracket maintains stable structural performance under vibration and load. Through fatigue CAE analysis and actual durability tests, the optimized bracket, excluding stress-ineffective areas such as contact points, has a minimum fatigue safety factor of 1.349, which is greater than the CAE evaluation standard of 1.1, meeting the strength requirements.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An engine-generator adjustment bracket, characterized in that, include: The bracket body (1) has an installation ring (11) at its end. The stress area (2) and the non-stress area (3) are located at the end of the support body (1) and are arranged in a circular pattern on the outside of the mounting ring (11). The non-stress area (3) is set as a welding point arrangement area, and a single welding point (31) can be selectively arranged in the area of ​​the non-stress area (3).

2. The engine generator adjustment bracket according to claim 1, characterized in that, A through shaft hole (12) is provided between the end of the bracket body (1) and the mounting ring (11).

3. The engine generator adjustment bracket according to claim 1, characterized in that, The outer side of the support body (1) is provided with a first folded edge (13).

4. The engine generator adjustment bracket according to claim 3, characterized in that, The bracket body (1) has a second folded edge (14) at one end away from the mounting ring (11), and the bracket body (1), the first folded edge (13) and the second folded edge (14) are integrally formed.

5. The engine generator adjustment bracket according to claim 1, characterized in that, The bracket body (1) has a first mounting hole (15) that runs vertically through it.

6. The engine generator adjustment bracket according to claim 4, characterized in that, The second folded edge (14) has a second mounting hole (16) that runs through both sides.

7. The engine generator adjustment bracket according to claim 1, characterized in that, The non-stressed area (3) is set in an arc shape with an arc angle of 135°.

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