Cast iron generator end cover
By installing internal and external reinforcement ribs on the end cover of the cast iron generator, the problem of the end cover being prone to fatigue and breakage under vibration and impact is solved, the stiffness and strength are improved, the vibration and impact resistance is enhanced, and the heat dissipation performance is improved.
Patent Information
- Application Number
- CN202422430321.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-10-09
AI Technical Summary
The end cap of the cast iron generator is prone to fatigue and breakage under vibration and impact, and the prior art is difficult to effectively improve its stiffness and strength.
Multiple groups of inner and outer reinforcement ribs are installed on the end cover of the cast iron generator to form an annular distribution to enhance their stiffness and strength, disperse vibration and impact forces, and reduce stress concentration.
Through the design of internal and external reinforcement ribs, the vibration and impact resistance of the end cap is significantly improved, the risk of rupture is reduced, and the heat dissipation performance is enhanced.
Smart Images
Figure CN223181917U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of generator accessories, and specifically relates to a cast iron generator end cover. Background Technique
[0002] The end cover on a cast iron generator includes a front end cover and a rear end cover. The front end cover is one of the important components of the generator, usually made of cast iron material, and is installed at the drive end of the generator; the front end cover is generally circular or elliptical in shape, and its shape and size are determined according to the model and specifications of the generator; the front end cover is usually provided with mounting holes; the mounting holes are used to fix the front end cover on the stator or the frame of the generator; the front end cover provides support for the rotor of the generator to ensure the stability of the rotor during operation; the cast iron material has high strength and stiffness and can withstand the centrifugal force and torque generated during the rotation of the rotor.
[0003] When the motor is working, the front end cover on it is often subjected to vibration and impact. Affected by vibration and impact for a long time, the material of the front end cover will gradually fatigue, the strength will decrease and it will crack. Content of the Utility Model
[0004] The purpose of the utility model is to provide a cast iron generator end cover to solve the defects mentioned in the above background technique.
[0005] To achieve the above purpose, a cast iron generator end cover is provided, which includes an end cover base. A fixing cylinder is fixedly installed on the surface of the end cover base, and a limiting disk is fixedly installed on the top of the fixing cylinder. At the same time, a positioning seat is fixedly arranged on the surface of the limiting disk. And mounting holes are opened on the outer side of the end cover base. A fixing table is arranged inside the end cover base, and a rotor cylinder is fixedly installed on the top of the fixing table. At the same time, five groups of insertion holes are evenly opened on the surface of the rotor cylinder, and the distance between adjacent two groups of insertion holes is the same. Inner reinforcing ribs are fixedly installed on the circumferential outer wall surface of the fixing table. The rotor cylinder is fixedly connected with the rotor of the generator, and the rotor of the generator is inserted inside the rotor cylinder.
[0006] Preferably, the axial cross-sections of the end cover base, the fixing cylinder, the limiting disk and the positioning seat are concentric circle structures, and three groups of mounting holes are evenly opened on the end cover base. At the same time, the number of each group of mounting holes is evenly arranged in three.
[0007] Preferably, eight groups of outer reinforcing ribs are evenly arranged between the end cover base and the fixing cylinder. The outer reinforcing ribs are right trapezoidal structures made of metal material. At the same time, perforations are opened inside the eight groups of outer reinforcing ribs.
[0008] Preferably, three groups of heat dissipation holes are evenly opened on the circumferential side wall of the end cover base. The heat dissipation holes are fan-shaped, and two groups of reinforcing strips are arranged inside the heat dissipation holes. The reinforcing strips are arc-shaped.
[0009] Preferably, the cross-sections of the limiting disk and the positioning seat are arranged in an "L" shape. Four groups of connecting flats are evenly arranged on the circumferential outer wall of the limiting disk. At the same time, the connecting flats are arranged in an isosceles trapezoid shape, and two connecting holes are provided on the connecting flats.
[0010] Preferably, twelve groups of inner reinforcing ribs are evenly arranged between the inner wall of the fixed cylinder and the fixed platform. The distance between adjacent two groups of inner reinforcing ribs is the same. At the same time, the inner reinforcing ribs are arranged in an "L" shape, and the fixed platform wraps around the circumferential outer side of the rotor cylinder.
[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0012] In the present utility model, multiple groups of inner reinforcing ribs and outer reinforcing ribs are both annularly distributed and fixed on the end cover body, which can effectively increase the stiffness and strength of the front end cover, enabling it to better resist the vibration generated during the operation of the generator; the existence of the reinforcing ribs can reduce the deformation and stress concentration of the front end cover under vibration, thereby reducing the risk of rupture; when the generator is subjected to external impact or internal unbalanced force, the two groups of annularly arranged reinforcing ribs can disperse these forces, making the overall force on the front end cover more uniform and improving its anti-impact ability. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is a front view schematic diagram of the structure of the present utility model;
[0014] Figure 2 is Figure 1 a side view of;
[0015] Figure 3 is Figure 1 a top view of;
[0016] Figure 4 is Figure 1 a bottom view of.
[0017] Reference numerals in the drawings: 1, end cover base; 2, outer reinforcing rib; 3, mounting hole; 4, fixed cylinder; 5, connecting flat; 6, connecting hole; 7, limiting disk; 8, positioning seat; 9, fixed platform; 10, insertion hole; 11, rotor cylinder; 12, inner reinforcing rib; 13, heat dissipation hole; 14, reinforcing strip. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0018] Please refer to Figures 1-4, the present utility model provides a cast iron generator end cover, which includes an end cover base 1. A fixing cylinder 4 is fixedly installed on the surface of the end cover base 1, and a limiting disc 7 is fixedly installed on the top of the fixing cylinder 4. At the same time, a positioning seat 8 is fixedly arranged on the surface of the limiting disc 7. And mounting holes 3 are opened on the outer side of the end cover base 1. A fixing platform 9 is arranged inside the end cover base 1, and a rotor cylinder 11 is fixedly installed on the top of the fixing platform 9. At the same time, five groups of insertion holes 10 are evenly opened on the surface of the rotor cylinder 11, and the distance between adjacent two groups of insertion holes 10 is the same. Inner reinforcing ribs 12 are fixedly installed on the circumferential outer wall surface of the fixing platform 9. The rotor cylinder 11 is fixedly connected with the rotor of the generator, and the rotor of the generator is inserted inside the rotor cylinder 11.
[0019] Working principle: When in use, first pass the rotor of the motor through the rotor cylinder 11. At this time, the end cover base 1 covers the front end of the motor. At the same time, three groups of mounting holes 3 are evenly arranged on the end cover base 1. Through the mounting holes 3, the end cover base 1 is screwed to the motor by using fixing bolts. At the same time, the end cover base 1 and the fixing cylinder 4 are reinforced by multiple groups of equally spaced outer reinforcing ribs 2; at the same time, the fixing cylinder 4 and the fixing platform 9 are reinforced by multiple groups of equally spaced inner reinforcing ribs 12 to ensure the strength of the end cover body when subjected to force and vibration, and it is not easy to be damaged and deformed. The multiple groups of inner reinforcing ribs 12 and outer reinforcing ribs 2 are annularly distributed and fixed on the end cover body, which can effectively increase the stiffness and strength of the front end cover, so that it can better resist the vibration generated during the operation of the generator; the existence of the reinforcing ribs can reduce the deformation and stress concentration of the front end cover under vibration, thereby reducing the risk of rupture; when the generator is subjected to external impact or internal unbalanced force, the two groups of annularly arranged reinforcing ribs can disperse these forces, making the front end cover more evenly stressed as a whole and improving its impact resistance. Three groups of heat dissipation holes 13 are evenly opened on the outer surface of the end cover base 1. The setting of the heat dissipation holes 13 covers the front part of the motor, reducing the covering area between the front end cover and the motor, which is beneficial to the heat dissipation of the front end of the motor.
[0020] As a preferred embodiment, the axial sections of the end cover base 1, the fixing cylinder 4, the limiting disc 7 and the positioning seat 8 are concentric circle structures. And three groups of mounting holes 3 are evenly opened on the end cover base 1. At the same time, the number of each group of mounting holes 3 is equally spaced and set to three.
[0021] Eight groups of outer reinforcing ribs 2 are evenly arranged between the end cover base 1 and the fixing cylinder 4. And the outer reinforcing ribs 2 are right trapezoid structures made of metal materials. At the same time, through holes are opened inside the eight groups of outer reinforcing ribs 2.
[0022] As a preferred embodiment, three groups of heat dissipation holes 13 are evenly opened on the circumferential side wall of the end cover base 1. And the heat dissipation holes 13 are fan-shaped. At the same time, two groups of reinforcing strips 14 are arranged inside the heat dissipation holes 13, and the reinforcing strips 14 are arc-shaped.
[0023] As a preferred embodiment, the cross sections of the limit disk 7 and the positioning seat 8 are arranged in an "L" shape. Four groups of connecting flats 5 are evenly arranged on the circumferential outer wall of the limit disk 7. At the same time, the connecting flats 5 are arranged in an isosceles trapezoid shape, and two groups of connecting holes 6 are provided on the connecting flats 5.
[0024] Twelve groups of inner reinforcing ribs 12 are evenly arranged between the inner wall of the fixed cylinder 4 and the fixed platform 9. The distance between adjacent two groups of inner reinforcing ribs 12 is the same. At the same time, the inner reinforcing ribs 12 are arranged in an "L" shape, and the fixed platform 9 is wrapped around the circumferential outer side of the rotor cylinder 11.
Claims
1. A cast iron generator end cover, comprising an end cover base (1), characterized in that: A fixing cylinder (4) is fixedly installed on the surface of the end cover base (1), a limiting disc (7) is fixedly installed at the top of the fixing cylinder (4), a positioning seat (8) is fixedly arranged on the surface of the limiting disc (7), mounting holes (3) are formed on the outer side of the end cover base (1), a fixing platform (9) is arranged inside the end cover base (1), a rotor cylinder (11) is fixedly installed at the top of the fixing platform (9), five groups of inserting holes (10) are evenly formed on the surface of the rotor cylinder (11), the distance between adjacent two groups of inserting holes (10) is the same, inner reinforcing ribs (12) are fixedly installed on the circumferential outer wall surface of the fixing platform (9), the rotor cylinder (11) is fixedly connected with the rotor of the generator, and the rotor of the generator is inserted into the rotor cylinder (11).
2. The cast iron generator end cover according to claim 1, characterized in that: The axial sections of the end cover base (1), the fixing cylinder (4), the limiting disc (7) and the positioning seat (8) are concentric circle structures, three groups of mounting holes (3) are evenly formed on the end cover base (1), and the number of each group of mounting holes (3) is arranged at equal intervals of three.
3. A cast iron generator end cover according to claim 1, characterized in that: Eight groups of outer reinforcing ribs (2) are evenly arranged between the end cover base (1) and the fixing cylinder (4), the outer reinforcing ribs (2) are right trapezoid structures made of metal materials, and through holes are formed inside the eight groups of outer reinforcing ribs (2).
4. A cast iron generator end cover according to claim 1, characterized in that: Three groups of heat dissipation holes (13) are evenly formed on the circumferential side wall of the end cover base (1), the heat dissipation holes (13) are fan-shaped, two groups of reinforcing strips (14) are arranged inside the heat dissipation holes (13), and the reinforcing strips (14) are arc-shaped.
5. A cast iron generator end cover according to claim 1, characterized in that: The cross sections of the limiting disc (7) and the positioning seat (8) are arranged in an "L" shape, four groups of connecting flats (5) are evenly arranged on the circumferential outer wall of the limiting disc (7), the connecting flats (5) are isosceles trapezoids, and two groups of connecting holes (6) are formed on the connecting flats (5).
6. A cast iron generator end cover according to claim 1, characterized in that: Twelve groups of inner reinforcing ribs (12) are evenly arranged between the inner wall of the fixing cylinder (4) and the fixing platform (9), the distance between adjacent two groups of inner reinforcing ribs (12) is the same, the inner reinforcing ribs (12) are arranged in an "L" shape, and the fixing platform (9) wraps around the circumferential outer side of the rotor cylinder (11).