An engine triangle plate that can prevent cracking
By creating threaded holes inside the triangular plate and combining them with a hydraulic damper, the stress distribution is changed, thus solving the fatigue cracking problem caused by stress concentration in engine triangular plates and achieving uniform stress dispersion and buffering effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI WEIYANG POWER TECH SERVICE CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-05-26
AI Technical Summary
Existing engine triangular plates lack the function of opening stress modification. Although simply relying on material upgrades can only improve load-bearing capacity to a limited extent, they are still prone to fatigue cracks due to stress concentration.
A threaded hole is made inside the triangular plate, and combined with a hydraulic damper and an adjusting sleeve, the stress distribution is changed through the threaded hole, and the vibration is buffered by the hydraulic damper to optimize the stress uniformity.
It effectively reduces the risk of cracks caused by stress concentration and improves the overall stress balance and fatigue resistance of the triangular plate.
Smart Images

Figure CN224282777U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of engine technology, and in particular to a triangular plate for engines that can prevent cracking. Background Technology
[0002] Engine triangles play an indispensable role in maintaining stable engine operation. They provide crucial support for numerous internal and external components and withstand various complex forces during engine operation. Whether in automotive, marine, or industrial engines, triangles occupy a critical position, facing harsh working environments such as high temperature, high pressure, and high vibration. Current practical applications of engine triangles typically require the following technologies:
[0003] 1. Precise manufacturing technology ensures the dimensional and shape accuracy of the triangular plate to meet the requirements for precise fit with other engine components;
[0004] 2. The selection and processing technology of high-quality materials give the triangle plate good strength, toughness, heat resistance and fatigue resistance, making it suitable for the complex working conditions of the engine.
[0005] Currently, various design and manufacturing methods are employed in the industry to meet the performance requirements of engine tripods. Some designs focus on material upgrades, selecting alloy materials with higher strength and better toughness to manufacture the tripods, hoping to enhance the reliability of the tripods through improved material performance.
[0006] However, there is a prominent problem with these existing methods: the existing triangular plates lack the function of changing the stress through openings. Although upgrading the materials can improve the load-bearing capacity of the triangular plates to a certain extent, it has limited improvement over the complex stress distribution during engine operation. It is still easy for local stress concentration to occur, which leads to fatigue cracks in the triangular plates due to excessive vibration and impact during long-term use. Utility Model Content
[0007] To address the shortcomings of existing technologies, this utility model provides a triangular plate for engines that can prevent cracking. It solves the problem that existing triangular plates lack the function of opening to change stress. Although upgrading materials can improve the load-bearing capacity of the triangular plate to a certain extent, it has limited improvement over the complex stress distribution during engine operation and is still prone to local stress concentration. This leads to fatigue cracks in the triangular plate due to excessive vibration and impact during long-term use.
[0008] To achieve the above objectives, this utility model provides the following technical solution:
[0009] A crack-preventing engine triangular plate includes an engine body. The outer surface of the engine body is provided with a triangular plate body. The triangular plate body has two sets of cylindrical grooves inside. The triangular plate body has a stress-dispersing mechanism for crack prevention inside. The stress-dispersing mechanism includes a threaded hole. The threaded hole is opened inside the triangular plate body. The nominal diameter of the threaded hole is 16 mm and the depth of the threaded hole is 30 mm. The threaded hole is located at the center of the two sets of cylindrical grooves.
[0010] Preferably, a fixed disc is fixedly connected to one end of the outer surface of the triangular plate body near the engine body, and a connecting ring is fixedly connected to one end of the outer surface of the triangular plate body near the engine body, the connecting ring being disposed on the outer surface of the fixed disc.
[0011] Preferably, a hydraulic damper is fixedly connected to the outer surface of the fixed disc, and an external threaded ring is fixedly connected to the outer surface of the hydraulic damper.
[0012] Preferably, a spring is fitted onto the outer surface of the hydraulic damper, and the spring is fixedly connected to one end of the fixed disc and the outer surface of the external threaded ring that are close to each other.
[0013] Preferably, the outer surface of the hydraulic damper is fixedly connected to an installation ring, and a bearing is sleeved on the inner surface of the connecting ring.
[0014] Preferably, an adjusting sleeve is fitted onto the inner surface of the bearing, and the adjusting sleeve is rotatably connected to the outer surface of the triangular plate.
[0015] Preferably, the adjusting sleeve is threaded onto the outer surface of the external threaded ring, and the adjusting sleeve has an internal threaded groove inside.
[0016] Preferably, a set of anti-slip rubber rings are fixedly connected to the outer surface of the adjusting sleeve.
[0017] Compared with the prior art, the present invention has the following beneficial effects:
[0018] 1. During engine operation, the triangular plate body will bear loads from all directions. Stress is transmitted and distributed within it. The threaded hole inside the triangular plate body has a nominal diameter of 16 mm and a depth of 30 mm, and is located at the center of two sets of cylindrical grooves. When the triangular plate body is under stress, the structural features such as the tooth profile and pitch of the threaded hole change the stress distribution. The stress that may have been concentrated in certain local areas is redistributed along its contour and depth due to the presence of the threaded hole, which acts as a stress transmission channel. The stress is guided through the threaded hole and evenly distributed to a larger area, avoiding excessively high local stress peaks, reducing the risk of crack initiation due to stress concentration, and making the overall stress state of the triangular plate body more balanced.
[0019] 2. Before installing the hydraulic damper, the operator rotates the adjusting sleeve by tightening the anti-slip rubber ring on the outer surface of the adjusting sleeve. When the adjusting sleeve rotates, the internal thread groove and the external thread ring engage to drive the output shaft of the hydraulic damper to slide out or retract. The working position and buffering performance of the hydraulic damper can be adjusted according to the actual working conditions to better adapt to different engine vibration conditions and optimize the buffering effect. Attached Figure Description
[0020] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.
[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0022] Figure 2 This is an exploded view of the fixed disc connection of this utility model;
[0023] Figure 3 This is a connection structure diagram of the hydraulic damper of this utility model;
[0024] Figure 4 This is an exploded view of the external threaded ring connection of this utility model.
[0025] Legend: 11. Engine body; 12. Triangular plate body; 13. Cylindrical groove; 14. Threaded hole; 15. Fixed disc; 16. Connecting ring; 17. Hydraulic damper; 18. External threaded ring; 19. Spring; 21. Mounting ring; 22. Bearing; 23. Adjusting sleeve; 24. Internal threaded groove; 25. Anti-slip rubber ring. Detailed Implementation
[0026] This application provides a crack-avoiding engine triangular plate, effectively solving the problem that existing triangular plates lack the function of opening to change stress. While upgrading materials can improve the load-bearing capacity of the triangular plate to some extent, it has limited improvement over the complex stress distribution during engine operation and is still prone to local stress concentration. This leads to fatigue cracks in the triangular plate due to excessive vibration and impact during long-term use. When the engine is running, the triangular plate body will bear loads from all directions, and stress is transmitted and distributed within it. The threaded hole inside the triangular plate body has a nominal diameter of 16 mm and a depth of 30 mm, and is located at the center of two sets of cylindrical grooves. When the triangular plate body is under force, the thread profile, pitch, and other structural features of the threaded hole change the stress distribution. The stress that may have been concentrated in certain local areas is redistributed along its contour and depth direction due to the presence of the threaded hole, which acts as a stress transmission channel. The stress is guided through the threaded hole and evenly distributed to a larger area, avoiding excessively high local stress peaks, reducing the risk of crack initiation due to stress concentration, and making the overall stress state of the triangular plate body more balanced.
[0027] Example
[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the technical solution in this application effectively solves the problem that existing triangular plates lack the function of changing stress through openings. While upgrading materials can improve the load-bearing capacity of the triangular plate to some extent, it has limited improvement over the complex stress distribution during engine operation, and still easily leads to localized stress concentration. This causes fatigue cracks in the triangular plate due to excessive vibration and impact during long-term use. The overall concept is as follows: A crack-avoiding triangular plate for engines includes an engine body 11. A triangular plate body 12 is provided on the outer surface of the engine body 11. Two sets of cylindrical grooves 13 are opened inside the triangular plate body 12. A stress dispersion mechanism for crack prevention is opened inside the triangular plate body 12, including a threaded hole 14. The threaded hole 14 is opened inside the triangular plate body 12, with a nominal diameter of 16 mm and a depth of 30 mm. The threaded hole 14 is located at the center of the two sets of cylindrical grooves 13. When the triangular plate body 12 bears a load, the stress is transmitted and distributed within it. After opening the threaded hole 14, the originally concentrated stress is changed due to the existence of the threaded hole 14 structure. The thread profile and pitch of the threaded hole 14 redistribute stress within and around the threaded hole 14 area, preventing excessive stress concentration in any localized region. For example, during engine operation, the triangular plate body 12 is subjected to forces from various directions. Without the threaded hole 14, some parts may experience excessive stress. However, with the threaded hole 14, the stress is dispersed along the contour and depth of the threaded hole 14, reducing local stress peaks and thus decreasing the likelihood of crack initiation due to stress concentration. The threaded hole 14 essentially creates a stress transmission channel within the triangular plate body 12. When external loads are applied, stress preferentially travels along the path of the threaded hole 14, resulting in more uniform stress transmission. This is similar to setting up a diversion channel in a fast-flowing river to guide the water flow smoothly. In the triangular plate body 12, stress is guided through the threaded hole 14 and evenly distributed over a larger area, resulting in a more balanced stress state overall and reducing the risk of high stress at any single point initiating a crack.
[0029] A fixed disc 15 is fixedly connected to one end of the outer surface of the triangular plate body 12 near the engine body 11. A connecting ring 16 is fixedly connected to one end of the outer surface of the triangular plate body 12 near the engine body 11. The connecting ring 16 is located on the outer surface of the fixed disc 15. A hydraulic damper 17 is fixedly connected to the outer surface of the fixed disc 15. An external threaded ring 18 is fixedly connected to the outer surface of the hydraulic damper 17. A spring 19 is sleeved on the outer surface of the hydraulic damper 17. The spring 19 is fixedly connected to one end of the outer surfaces of the fixed disc 15 and the external threaded ring 18 that are close to each other. An installation ring 21 is fixedly connected to the outer surface of the hydraulic damper 17. The hydraulic damper 17 can be fixed as a whole to one end of the engine body 11 and the triangular plate body 12 that are close to each other through the installation ring 21. The hydraulic damper 17 and the spring 19 sleeved on its surface play a buffering role. The external threaded ring 18 is installed on the surface of the output shaft of the hydraulic damper 17.
[0030] A bearing 22 is fitted onto the inner surface of the connecting ring 16, and an adjusting sleeve 23 is fitted onto the inner surface of the bearing 22. The adjusting sleeve 23 is rotatably connected to the outer surface of the triangular plate body 12. The adjusting sleeve 23 is threadedly connected to the outer surface of the external threaded ring 18. An internal thread groove 24 is provided inside the adjusting sleeve 23. A set of anti-slip rubber rings 25 is fixedly connected to the outer surface of the adjusting sleeve 23. Before the hydraulic damper 17 is installed, the operator can rotate the adjusting sleeve 23 by screwing it against the surface of the anti-slip rubber rings 25. When the adjusting sleeve 23 rotates, it will be threadedly connected to the surface of the external threaded ring 18 through the internal thread groove 24, thereby driving the output shaft of the hydraulic damper 17 to slide out or retract. The bearing 22 is fitted inside the connecting ring 16, and the adjusting sleeve 23 is fitted inside the bearing 22, thereby realizing the rotation of the adjusting sleeve 23.
[0031] To address the problems existing in the prior art, this utility model provides a triangular plate for an engine that can prevent cracking. When the engine body 11 is running, the triangular plate body 12 will bear loads from all directions, and the stress is transmitted and distributed inside it. The threaded hole 14 opened inside the triangular plate body 12 has a nominal diameter of 16 mm and a depth of 30 mm, and is located at the center of the two sets of cylindrical grooves 13. When the triangular plate body 12 is under force, the structural features such as the tooth profile and pitch of the threaded hole 14 change the stress distribution. The stress that may have been concentrated in certain local areas is redistributed along its contour and depth direction due to the presence of the threaded hole 14, which acts as a stress transmission channel. The stress is guided through the threaded hole 14 and evenly distributed to a larger area, avoiding excessively high local stress peaks, reducing the risk of crack initiation due to stress concentration, and making the overall stress state of the triangular plate body 12 more balanced.
[0032] Working principle:
[0033] In the first step, the triangular plate body 12, with its stable triangular structure, provides reliable support for other components inside or outside the engine body 11. It connects different components, ensuring their relative positions remain stable during engine body 11 operation, preventing displacement or loosening due to vibration, impact, or other factors. During engine body 11 operation, the triangular plate body 12 bears loads from all directions, with stress transmitted and distributed within it. The threaded hole 14 inside the triangular plate body 12, with a nominal diameter of 16 mm and a depth of 30 mm, is located at the center of the two sets of cylindrical grooves 13. When the triangular plate body 12 is under stress, the thread profile, pitch, and other structural features of the threaded hole 14 alter the stress distribution. Stress that might have been concentrated in certain localized areas is redistributed along its contour and depth due to the presence of the threaded hole 14, acting as a stress transmission channel. Stress is guided through the threaded hole 14 and evenly distributed to a larger area, avoiding excessively high local stress peaks, reducing the risk of crack initiation due to stress concentration, and making the overall stress state of the triangular plate body 12 more balanced.
[0034] In the second step, at the end of the triangular plate body 12 closest to the engine body 11, the fixed disc 15 and connecting ring 16 provide connection and support. The hydraulic damper 17 is fixed to the end of the engine body 11 closest to the triangular plate body 12 via the mounting ring 21. A spring 19 is sleeved on the outer surface of the hydraulic damper 17, with the fixed disc 15 and external threaded ring 18 connected to both ends of the spring 19. When the engine generates vibration or impact that is transmitted to the triangular plate body 12, the hydraulic damper 17 utilizes the damping force generated by the internal fluid flowing in the small holes or gaps, as well as the elastic deformation of the spring 19, to jointly consume the vibration energy, thus buffering the impact force transmitted to the triangular plate body 12 and further reducing the possibility of cracking. The connecting ring 16... 6. The inner surface of the bearing 22 is fitted with a bearing 22, and the inner surface of the bearing 22 is fitted with an adjusting sleeve 23. The adjusting sleeve 23 can rotate on the outer surface of the triangular plate body 12. The adjusting sleeve 23 has an internal threaded groove 24, which is threadedly connected to the external threaded ring 18 installed on the output shaft surface of the hydraulic damper 17. Before the hydraulic damper 17 is installed, the operator screws the adjusting sleeve 23 by fitting the anti-slip rubber ring 25 on the outer surface of the adjusting sleeve 23 to make it rotate. When the adjusting sleeve 23 rotates, the internal threaded groove 24 and the external threaded ring 18 are threaded together, which drives the output shaft of the hydraulic damper 17 to slide out or retract. The working position and buffering performance of the hydraulic damper 17 can be adjusted according to the actual working conditions to better adapt to different vibration conditions of the engine and optimize the buffering effect.
[0035] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. 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. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A crack-avoiding engine triangular plate, comprising an engine body (11), wherein a triangular plate body (12) is disposed on the outer surface of the engine body (11), characterized in that, The triangular plate body (12) has two sets of cylindrical grooves (13) inside. The triangular plate body (12) has a stress dispersion mechanism for crack prevention inside. The stress dispersion mechanism includes a threaded hole (14) inside the triangular plate body (12). The nominal diameter of the threaded hole (14) is sixteen millimeters, the depth of the threaded hole (14) is thirty millimeters, and the threaded hole (14) is located at the center of the two sets of cylindrical grooves (13).
2. The engine triangular plate that can prevent cracking as described in claim 1, characterized in that, A fixed disc (15) is fixedly connected to one end of the outer surface of the triangular plate body (12) near the engine body (11); Among them, a connecting ring (16) is fixedly connected to one end of the outer surface of the triangular plate body (12) near the engine body (11), and the connecting ring (16) is disposed on the outer surface of the fixed disc (15).
3. The engine triangular plate that can prevent cracking as described in claim 2, characterized in that, A hydraulic damper (17) is fixedly connected to the outer surface of the fixed disk (15); The hydraulic damper (17) has an external threaded ring (18) fixedly connected to its outer surface.
4. The engine triangular plate that can prevent cracking as described in claim 3, characterized in that, The hydraulic damper (17) has a spring (19) sleeved on its outer surface; The spring (19) is fixedly connected to one end of the fixed disc (15) and the outer surface of the external threaded ring (18) that are close to each other.
5. A crack-avoiding engine triangle plate as described in claim 4, characterized in that, The hydraulic damper (17) has a mounting ring (21) fixedly connected to its outer surface; The inner surface of the connecting ring (16) is fitted with a bearing (22).
6. A crack-avoiding engine triangle plate as described in claim 5, characterized in that, An adjusting sleeve (23) is fitted onto the inner surface of the bearing (22); The adjusting sleeve (23) is rotatably connected to the outer surface of the triangular plate body (12).
7. A crack-avoiding engine triangle plate as described in claim 6, characterized in that, The adjusting sleeve (23) is threaded onto the outer surface of the external threaded ring (18); The adjusting sleeve (23) has an internal threaded groove (24) inside.
8. A crack-avoiding engine triangle plate as described in claim 7, characterized in that, A set of anti-slip rubber rings (25) are fixedly connected to the outer surface of the adjusting sleeve (23).