Non-driving end insulation end cover of ship generator
By installing an insulating plate assembly and polyester belt at the non-drive end of the ship generator to block the closed loop of the shaft current, and using insulating materials and heat dissipation structures between the end plate body and the intermediate ring plate, the problem of bearing corrosion is solved, ensuring the stable operation and insulation performance of the generator, while improving safety and strength.
Patent Information
- Application Number
- CN202422920574.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-11-28
AI Technical Summary
The shaft current forms a closed loop, causing corrosion of the bearing material and affecting the operating reliability and life of the generator.
Insulation plate assemblies and polyester tapes are used to block the shaft current through multiple layers of insulation materials to form a closed loop. Insulation tubes, insulation gaskets and epoxy glass fiber rings are set between the end plate body and the intermediate ring plate for insulation treatment. At the same time, heat dissipation holes and reinforcement ribs are set in the end plate body to dissipate heat.
It effectively prevents the corrosion of bearing materials, ensures the stable operation and insulation performance of the generator, improves safety, reduces heat accumulation through heat dissipation holes, and enhances the strength and lightweight of the end plate body.
Smart Images
Figure CN223462843U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to non drive end end cover technical field, concretely is a kind of non drive end insulating end cover of marine generator. BACKGROUND
[0002] The non-drive end end cover of marine generator is an important component in the generator, which is located on the non-drive side of the generator, opposite to the drive end cover. The main function of the non-drive end end cover is to position the rotor core together with the bearing, and to be fastened together with the base and the drive end cover through bolts to ensure the stability and integrity of the generator structure.
[0003] The non-drive end end cover plays a crucial role in the generator and plays a core role in the assembly and maintenance process of the generator. This component ensures the stable connection between the inside and outside of the generator, and is the key to ensuring the normal operation and long-term reliability of the generator.
[0004] During the operation of the generator, the generation of shaft current is inevitable. When these currents flow through the bearing through the motor shaft, they are conducted to the bearing seat through lubricating oil, and then transmitted to the end cover by the bearing seat, finally forming a closed loop, and an electrochemical effect occurs in the bearing, causing the corrosion of the bearing material, and further damaging the bearing bush. This corrosion and damage will reduce the operation reliability of the generator, affect its performance and service life. Therefore, a non-drive end insulating end cover of marine generator is proposed to solve the above problems. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a non-drive end insulating end cover of marine generator to solve the problem that when shaft current forms a closed loop, electrochemical effect occurs, causing the corrosion of bearing material, and further damaging the bearing bush. This corrosion and damage will reduce the operation reliability of the generator, affect its performance and service life.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:
[0007] The utility model provides a kind of non-drive end insulating end cover of marine generator, including generator base and end plate component, the inside of the end plate component is fixedly connected with intermediate ring component by fixed insulation component, the inside of the end plate component is attached with the inside of insulation plate component, the inside of the insulation plate component is filled with polyester tape, the generator base is connected with end plate component by bolt, the end plate component includes end plate body, bolt hole is arranged in the inside of the end plate body, heat dissipation hole is arranged in the inside of the end plate body, the inside of the heat dissipation hole that the end plate body sets is fixedly connected with reinforcing rib, fixed straight hole is arranged in the inside of the end plate body, setting groove is arranged in the inside of the end plate body, the intermediate ring component includes intermediate ring plate, bearing fixed hole is arranged in the inside of the intermediate ring plate, angle groove is arranged at the rear end of the intermediate ring plate, first filling groove is arranged on the outside of the intermediate ring plate, second filling groove is arranged on the rear end close to the first filling groove of the intermediate ring plate, screw thread fixed hole is arranged in the inside of the intermediate ring plate, the insulation plate component includes first epoxy glass fiber ring, the outside of the rear end of the first epoxy glass fiber ring is fixedly connected with second epoxy glass fiber ring, embedding hole is arranged in the inside of the second epoxy glass fiber ring, the inside of the first epoxy glass fiber ring is fixedly connected with inner convex ring, the inside of the inner convex ring is fixedly connected with first anti-deviation insulation ring, the inside of the rear end close to the inner convex ring of the first epoxy glass fiber ring is fixedly connected with second anti-deviation insulation ring, the inside of the first epoxy glass fiber ring is fixedly connected with third anti-deviation insulation ring, the fixed insulation component includes fixed bolt, the outside of the fixed bolt is sleeved with elastic gasket, the outside of the fixed bolt is sleeved with insulating gasket, the rear end close to the insulating gasket of the fixed bolt is sleeved with insulating tube, isolation groove is arranged in the inside of the insulating tube.
[0008] As the further optimization of the utility model, wherein: the shape of the end plate body is a slotted cylinder, the bolt hole penetrates the inside of the end plate body, the end plate component is fixedly connected at the non-drive end of the generator base, the number of bolt holes is several, the shape of the heat dissipation hole is a cylinder, the heat dissipation hole penetrates the inside of the end plate body, and the number of heat dissipation holes is the same as that of reinforcing ribs.
[0009] As the further optimization of the utility model, wherein: the shape of the reinforcing rib is a three-segment rectangular body, the three-segment rectangular bodies of the reinforcing rib are at an angle of 120 degrees, and the front end and the rear end of the reinforcing rib are flush with the front end and the rear end of the end plate body.
[0010] As the further optimization of the utility model, wherein: the end plate body is sleeved on the outside of the front end of the intermediate ring plate through the setting groove, the setting groove is in the shape of a cylinder, and the setting groove penetrates the inside of the end plate body.
[0011] As a further optimization of the utility model, wherein: the outer side of the polyester tape is attached to the inner side of the first anti-deviation insulating ring, the second anti-deviation insulating ring and the third anti-deviation insulating ring opened by the insulating plate assembly, the front end of the polyester tape is flush with the front end of the end plate body, the inner side of the polyester tape is attached to the inner side of the first filling groove and the second filling groove opened by the intermediate ring plate, the rear end of the polyester tape is attached to the rear end of the second filling groove opened by the intermediate ring plate, and the outer side and the inner side of the polyester tape are smeared with silica gel.
[0012] As a further optimization of the utility model, wherein: the shape of the intermediate ring plate is composed of two cylindrical bodies, the inner side of the first filling groove and the second filling groove is provided with an annular groove, the front end of the corner groove is a chamfer structure, the front end of the intermediate ring plate is flush with the front end of the end plate body, and the rear end of the intermediate ring plate protrudes from the rear end of the end plate body.
[0013] As a further optimization of the utility model, wherein: the shape of the first epoxy glass fiber ring, the second epoxy glass fiber ring, the first anti-deviation insulating ring, the second anti-deviation insulating ring and the third anti-deviation insulating ring is a hollow cylindrical body, the insulating plate assembly is clamped on the inner side of the end plate body and the outer side of the polyester tape, the embedded hole penetrates the inner side of the second epoxy glass fiber ring, the front end of the second epoxy glass fiber ring is in close contact with the rear end of the end plate body, the front end of the first epoxy glass fiber ring and the inner convex ring is flush with the front end of the end plate body, and the inner side of the embedded hole is attached to the outer side of the rear end of the insulating tube.
[0014] As a further optimization of the utility model, wherein: the threaded fixing hole penetrates the inner side of the intermediate ring plate, the inner side of the threaded fixing hole opened by the intermediate ring plate is spirally attached to the outer side of the rear end of the fixing bolt, the number of threaded fixing holes is the same as the number of fixing bolts, and the intermediate ring plate is fixed with the end plate body through the fixing bolts.
[0015] As a further optimization of the utility model, wherein: the insulating tube is embedded and installed in the inner side of the fixed straight hole, the front end of the insulating tube is flush with the front end of the end plate body, the rear end of the insulating tube is attached to the rear end of the second filling groove opened by the intermediate ring plate, the rear end of the elastic gasket is attached to the front end of the insulating gasket, the rear end of the insulating gasket is attached to the front end of the end plate body, and the fixing bolt is embedded and installed in the inner side of the isolation groove.
[0016] Compared with the prior art, the utility model has the beneficial effects that:
[0017] 1、In the utility model, the insulating plate assembly and the polyester tape are set, the device uses the insulating plate assembly and the polyester tape as the insulating material, effectively blocks the closed loop of the shaft current, prevents the corrosion of the bearing material caused by the electrochemical effect, and ensures the service life of the bearing and the stable operation of the generator.
[0018] 2. The utility model discloses, through the setting insulating tube, insulating gasket and second epoxy glass fiber ring, adopt multilayer insulating component insulating tube, second epoxy glass fiber ring and insulating gasket to fix and insulating treatment between end plate body and intermediate ring plate, realize the mechanical fixation of two parts, prevent the current conduction again, improve the insulating performance and security of generator,
[0019] 3. The utility model discloses, through the setting heat dissipation hole and reinforcing rib, through setting up multiple heat dissipation holes to export the heat generated in the generator, reduce the problem of heat accumulation, reduce the weight of component end plate body simultaneously, and through the design of reinforcing rib, improve the overall strength of end plate body, ensure the light weight and strength requirement of generator component. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is overall structure schematic diagram of the utility model;
[0021] Figure 2 It is end plate body structure schematic diagram of the utility model;
[0022] Figure 3 It is reinforcing rib structure schematic diagram of the utility model;
[0023] Figure 4 It is A place structure schematic diagram of the utility model; Figure 3
[0024] Figure 5 It is intermediate ring plate structure schematic diagram in the utility model;
[0025] Figure 6 It is B place structure schematic diagram of the utility model; Figure 5
[0026] Figure 7 It is C place structure schematic diagram of the utility model; Figure 5
[0027] Figure 8 It is fixed insulating component structure schematic diagram of the utility model.
[0028] In the drawing: 1, generator base;
[0029] 2, end plate assembly;21, end plate body;22, bolt hole;23, heat dissipation hole;24, reinforcing rib;25, fixed straight hole;26, arrangement groove;
[0030] 3, intermediate ring assembly;31, intermediate ring plate;32, angle groove;33, first filling groove;34, second filling groove;35, screw hole;36, bearing fixing hole;
[0031] 4, insulation board assembly; 41, first epoxy glass fiber ring; 42, second epoxy glass fiber ring; 43, embedded hole; 44, inner convex ring; 45, first anti-deviation insulation ring; 46, second anti-deviation insulation ring; 47, third anti-deviation insulation ring;
[0032] 5, polyester tape;
[0033] 6, fixed insulation assembly; 61, fixing bolt; 62, elastic gasket; 63, insulation gasket; 64, insulation tube; 65, isolation groove. DETAILED DESCRIPTION
[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0035] It should be noted that the terms used herein are only for the purpose of describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and furthermore, it should be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.
[0036] Please refer to Figures 1-8 The present application provides a technical solution:
[0037] The utility model provides a kind of non-drive end insulating end cover of marine generator, including generator base 1 and end plate component 2, intermediate ring component 3 is fixedly connected with inside of end plate component 2 by fixed insulation component 6, inside of end plate component 2 is attached with inside of insulation plate component 4, polyester tape 5 is filled in inside of insulation plate component 4, generator base 1 is connected with end plate component 2 by bolt, end plate component 2 includes end plate body 21, bolt hole 22 is set in inside of end plate body 21, heat dissipation hole 23 is set in inside of end plate body 21, heat dissipation hole 23 set in end plate body 21 is fixedly connected with reinforcing rib 24, fixed straight hole 25 is set in inside of end plate body 21, setting groove 26 is set in inside of end plate body 21, intermediate ring component 3 includes intermediate ring plate 31, bearing fixed hole 36 is set in inside of intermediate ring plate 31, angle groove 32 is set in rear end of intermediate ring plate 31, first filling groove 33 is set in outside of intermediate ring plate 31, second filling groove 34 is set in rear end close to first filling groove 33 of intermediate ring plate 31, screw thread fixed hole 35 is set in inside of intermediate ring plate 31, insulation plate component 4 includes first epoxy glass fiber ring 41, second epoxy glass fiber ring 42 is fixedly connected with outside of rear end of first epoxy glass fiber ring 41, embedding hole 43 is set in inside of second epoxy glass fiber ring 42, inner convex ring 44 is fixedly connected with inside of first epoxy glass fiber ring 41, first anti-deviation insulation ring 45 is fixedly connected with inside of inner convex ring 44, second anti-deviation insulation ring 46 is fixedly connected with inside of rear end close to inner convex ring 44 of first epoxy glass fiber ring 41, third anti-deviation insulation ring 47 is fixedly connected with inside of first epoxy glass fiber ring 41, fixed insulation component 6 includes fixed bolt 61, elastic washer 62 is sleeved with outside of fixed bolt 61, insulation washer 63 is sleeved with outside of fixed bolt 61, insulation tube 64 is sleeved with rear end close to insulation washer 63 of fixed bolt 61, isolation groove 65 is set in inside of insulation tube 64.
[0038] As further implementation of the scheme, the shape of the end plate body 21 is a slotted cylinder, the bolt hole 22 penetrates the inside of the end plate body 21, the end plate component 2 is fixedly connected to the non-drive end of the generator base 1, the number of bolt holes 22 is several, the shape of the heat dissipation hole 23 is a cylinder, the heat dissipation hole 23 penetrates the inside of the end plate body 21, the number of heat dissipation holes 23 is the same as the number of reinforcing ribs 24, the shape of the reinforcing rib 24 is a three-segment rectangular body, the three-segment rectangular bodies of the reinforcing rib 24 form a 120-degree angle, the front end and the rear end of the reinforcing rib 24 are flush with the front end and the rear end of the end plate body 21, which increases the heat dissipation area and improves the heat dissipation efficiency while maintaining the stability of the structure, and the uniform distribution of the heat dissipation holes 23 helps to uniformly dissipate the heat generated inside the generator, reducing the problem of heat accumulation.
[0039] As a further implementation of the present scheme, the end plate body 21 is sleeved on the outer side of the front end of the intermediate ring plate 31 through the installation groove 26, the installation groove 26 is in the shape of a cylinder, the installation groove 26 penetrates the inner side of the end plate body 21, the outer side of the polyester tape 5 is attached to the inner side of the installation groove 26 of the end plate body 21, the front end of the polyester tape 5 is flush with the front end of the end plate body 21, the outer side of the polyester tape 5 is attached to the inner side of the first anti-deviation insulation ring 45, the second anti-deviation insulation ring 46 and the third anti-deviation insulation ring 47 of the insulation plate assembly 4, the front end of the polyester tape 5 is flush with the front end of the end plate body 21, the inner side of the polyester tape 5 is attached to the inner side of the first filling groove 33 and the second filling groove 34 of the intermediate ring plate 31, the rear end of the polyester tape 5 is attached to the rear end of the second filling groove 34 of the intermediate ring plate 31, and the outer side and the inner side of the polyester tape 5 are smeared with silica gel, while maintaining good insulation performance to prevent current leakage. Through the smearing of silica gel and the setting of the polyester tape 5, the insulation and sealing properties are enhanced, the leakage of current and liquid is prevented, and the safety and reliability of the equipment are improved;
[0040] As a further implementation of the present scheme, the intermediate ring plate 31 is in the shape of two cylindrical segments, the inner side of the first filling groove 33 and the second filling groove 34 is provided with an annular groove, the front end of the corner groove 32 is in a chamfered structure, the front end of the intermediate ring plate 31 is flush with the front end of the end plate body 21, the rear end of the intermediate ring plate 31 protrudes beyond the rear end of the end plate body 21, the first epoxy glass fiber ring 41, the second epoxy glass fiber ring 42, the first anti-deviation insulation ring 45, the second anti-deviation insulation ring 46 and the third anti-deviation insulation ring 47 are all in the shape of hollow cylinders, the insulation plate assembly 4 is clamped between the inner side of the end plate body 21 and the outer side of the polyester tape 5, the embedded hole 43 penetrates the inner side of the second epoxy glass fiber ring 42, the front end of the second epoxy glass fiber ring 42 is in close contact with the rear end of the end plate body 21, the first epoxy glass fiber ring 41 and the inner convex ring 44 are flush with the front end of the end plate body 21, and the inner side of the embedded hole 43 is attached to the outer side of the rear end of the insulation tube 64. This two-segment cylindrical design and annular groove provide additional connection and fixing points, enhancing the stability of the structure, while the chamfered structure helps to reduce stress concentration and improve the strength of the connection part. The clamping structure provides stable fixation, ensuring the correct position of the insulation material and preventing the polyester tape 5 from falling off during installation;
[0041] As a further implementation of the present scheme, the threaded fixing hole 35 penetrates the inner side of the intermediate ring plate 31, the inner side of the threaded fixing hole 35 opened by the intermediate ring plate 31 is spirally attached to the outer side of the rear end of the fixing bolt 61, the number of threaded fixing holes 35 is the same as the number of fixing bolts 61, the intermediate ring plate 31 is fixed with the end plate body 21 through the fixing bolt 61, the bearing fixing hole 36 penetrates the inner side of the intermediate ring plate 31, the bearing is fixed on the intermediate ring plate 31, the number of bearing fixing holes 36 is the same as the number of bearing mounting holes, the intermediate ring plate 31 is fixed with the end plate body 21 through the fixing bolt 61, the insulating tube 64 is embedded and installed in the inner side of the fixed straight hole 25, the front end of the insulating tube 64 is flush with the front end of the end plate body 21, the rear end of the insulating tube 64 is attached to the rear end of the second filling groove 34 opened by the intermediate ring plate 31, the rear end of the elastic gasket 62 is attached to the front end of the insulating gasket 63, the rear end of the insulating gasket 63 is attached to the front end of the end plate body 21, and the fixing bolt 61 is embedded and installed in the inner side of the isolation groove 65, which not only realizes the mechanical fixation of the two parts, but also prevents the conduction of current, improves the insulation performance and safety of the generator.
[0042] The working process of the utility model discloses a non-driving end insulation end cover of a ship generator: shaft current will be generated when the generator is working, in order to prevent the shaft current from forming a closed loop and causing bearing material corrosion and damage, the non-driving end of the generator is fixedly installed with the end plate body 21, the intermediate ring plate 31 is fixed with the bearing, the intermediate ring plate 31 does not directly contact the end plate body 21, the current between the intermediate ring plate 31 and the end plate body 21 is blocked by the insulating plate assembly 4 and the polyester tape 5, the material of the insulating plate assembly 4 is epoxy glass fiber, the insulating plate assembly 4 is a kind of high-performance composite material, and is widely used in industrial and electronic fields, this material is laminated after being impregnated with epoxy resin by multiple layers of woven glass fiber cloth, and main characteristics include excellent insulation, suitable for insulation material in high-voltage environment, so that the current conduction between the end plate body 21 and the intermediate ring plate 31 can be prevented, so that a closed loop is not formed, thereby preventing bearing material corrosion and ensuring the service life of the bearing, when the insulating plate assembly 4 and the polyester tape 5 between the end plate body 21 and the intermediate ring plate 31 are installed, first, the outside of the first epoxy glass fiber ring 41 is sleeved in the inside of the installation groove 26 of the end plate body 21, so that the front end of the first epoxy glass fiber ring 41 is flush with the front end of the end plate body 21, the front end of the intermediate ring plate 31 is placed on the inside of the first epoxy glass fiber ring 41, the front end of the intermediate ring plate 31 is flush with the front end of the first epoxy glass fiber ring 41, so that the center of the front end of the intermediate ring plate 31 coincides with the center of the front end of the first epoxy glass fiber ring 41, silicon is uniformly coated on the inside of the first epoxy glass fiber ring 41 and the inside of the inner convex ring 44, the first anti-offset insulation ring 45, the second anti-offset insulation ring 46 and the third anti-offset insulation ring 47, silicon is uniformly applied on the inside of the first filling groove 33 and the second filling groove 34, and the polyester tape 5 is uniformly filled on the first filling groove 33 and the second filling groove 34 formed on the outside of the intermediate ring plate 31, at this time, the intermediate ring plate 31 can be separated from the end plate body 21, and the insulation effect is achieved.
[0043] When fixing between the end plate body 21 and the intermediate ring plate 31 while ensuring the insulation after fixing, the threaded fixing hole 35 opened in the inside of the intermediate ring plate 31 is aligned with the embedded hole 43 opened in the first epoxy glass fiber ring 41, the embedded hole 43 is aligned with the fixing straight hole 25 opened in the end plate body 21, the insulating tube 64 is embedded and placed in the inside of the fixing straight hole 25 and the embedded hole 43 one by one, the rear end of the insulating tube 64 is tightly attached to the front end of the second epoxy glass fiber ring 42, at this time, the rear end of the plurality of insulating gaskets 63 is placed in front of the fixing straight hole 25 one by one, and the elastic gasket 62 is placed in front of the insulating gasket 63, the insulating gasket 63 plays a role of insulating between the elastic gasket 62 and the fixing bolt 61 and the end plate body 21, the elastic gasket 62 can increase the stability after the fixing bolt 61 is installed, the fixing bolt 61 is screwed through the isolation groove 65 and the threaded fixing hole 35 opened in the intermediate ring plate 31, the insulating tube 64 is extruded by the nut of the fixing bolt 61, the stability of the connection between the insulating tube 64 and the first epoxy glass fiber ring 41 is improved, at this time, the connection between the intermediate ring plate 31 and the end plate body 21 is realized through the fixing of the plurality of fixing bolts 61, through the insulation of the insulating tube 64, the second epoxy glass fiber ring 42 and the insulating gasket 63, the fixing of the end plate body 21 and the intermediate ring plate 31 is realized, and the current conduction between the end plate body 21 and the intermediate ring plate 31 is prevented;
[0044] When the end plate body 21 is used, the heat accumulation in the generator is prevented, the weight of the end plate body 21 is reduced while ensuring the strength of the end plate body 21, in normal use, the heat in the generator flows out through the heat dissipation hole 23, thereby preventing the heat accumulation in the generator and ensuring the safety of the generator, at the same time, the weight of the end plate body 21 can be reduced through the plurality of heat dissipation holes 23, according to the setting of the shape of the reinforcing rib 24, the reinforcing rib 24 can improve the strength of the end plate body 21, and the deformation of the end plate body 21 into the inside of the heat dissipation hole 23 is greatly reduced, and the overall strength of the end plate body 21 is improved.
[0045] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A non-driving end insulated end cover for a marine generator, comprising a generator frame (1) and an end plate assembly (2), characterised in that: The inner side of the end plate assembly (2) is fixedly connected with the intermediate ring assembly (3) through the fixed insulation assembly (6), the inner side of the end plate assembly (2) is attached to the inner side of the insulation plate assembly (4), the inner side of the insulation plate assembly (4) is filled with polyester tape (5), the generator base (1) is connected with the end plate assembly (2) through bolts, the end plate assembly (2) comprises an end plate body (21), a bolt hole (22) is formed in the inner side of the end plate body (21), a heat dissipation hole (23) is formed in the inner side of the end plate body (21), a reinforcing rib (24) is fixedly connected to the inner side of the heat dissipation hole (23) formed in the end plate body (21), a fixed straight hole (25) is formed in the inner side of the end plate body (21), a mounting groove (26) is formed in the inner side of the end plate body (21), the intermediate ring assembly (3) comprises an intermediate ring plate (31), a bearing fixing hole (36) is formed in the inner side of the intermediate ring plate (31), an angle groove (32) is formed at the rear end of the intermediate ring plate (31), a first filling groove (33) is formed in the outer side of the intermediate ring plate (31), a second filling groove (34) is formed at the rear end of the intermediate ring plate (31) close to the first filling groove (33), a threaded fixing hole (35) is formed in the inner side of the intermediate ring plate (31), the insulation plate assembly (4) comprises a first epoxy glass fiber ring (41), a second epoxy glass fiber ring (42) is fixedly connected to the outer side of the rear end of the first epoxy glass fiber ring (41), an embedding hole (43) is formed in the inner side of the second epoxy glass fiber ring (42), an inner convex ring (44) is fixedly connected to the inner side of the first epoxy glass fiber ring (41), a first anti-deviation insulation ring (45) is fixedly connected to the inner side of the inner convex ring (44), a second anti-deviation insulation ring (46) is fixedly connected to the inner side of the rear end of the first epoxy glass fiber ring (41) close to the inner convex ring (44), a third anti-deviation insulation ring (47) is fixedly connected to the inner side of the first epoxy glass fiber ring (41), the fixed insulation assembly (6) comprises a fixed bolt (61), an elastic washer (62) is sleeved on the outer side of the fixed bolt (61), an insulation washer (63) is sleeved on the outer side of the fixed bolt (61), an insulation tube (64) is sleeved on the rear end of the fixed bolt (61) close to the insulation washer (63), an isolation groove (65) is formed in the inner side of the insulation tube (64).
2. A non-drive end insulated terminal cover for a marine generator engine as defined in claim 1, wherein: The shape of the end plate body (21) is a slotted cylinder, the bolt hole (22) penetrates the inner side of the end plate body (21), the end plate assembly (2) is fixedly connected to the non-driving end of the generator base (1), the number of bolt holes (22) is several, the heat dissipation hole (23) is formed in the shape of a cylinder, the heat dissipation hole (23) penetrates the inner side of the end plate body (21), the number of heat dissipation holes (23) is the same as the number of reinforcing ribs (24).
3. A non-drive end insulated terminal cover for a marine generator engine as defined in claim 1, wherein: The shape of the reinforcing rib (24) is composed of three rectangular bodies, and the three rectangular bodies of the reinforcing rib (24) form an angle of 120 degrees, and the front end and the rear end of the reinforcing rib (24) are flush with the front end and the rear end of the end plate body (21).
4. A non-drive end insulated terminal cover for a marine generator engine as defined in claim 1, wherein: The end plate body (21) is sleeved on the outside of the front end of the intermediate ring plate (31) through the arrangement groove (26), the opening shape of the arrangement groove (26) is a cylinder, and the arrangement groove (26) penetrates the inside of the end plate body (21).
5. A non-drive end insulated terminal cover for a marine generator engine as defined in claim 1, wherein: The outside of the polyester tape (5) is attached to the inside of the first, second and third anti-deviation insulation rings (45, 46 and 47) opened by the insulation plate assembly (4), the front end of the polyester tape (5) is flush with the front end of the end plate body (21), the inside of the polyester tape (5) is attached to the inside of the first and second filling grooves (33 and 34) opened by the intermediate ring plate (31), the rear end of the polyester tape (5) is attached to the rear end of the second filling groove (34) opened by the intermediate ring plate (31), and the outside and the inside of the polyester tape (5) are smeared with silica gel.
6. A non-drive end insulated terminal cover for a marine generator engine as defined in claim 1, wherein: The shape of the intermediate ring plate (31) is composed of two cylinders, the inside of the first and second filling grooves (33 and 34) is opened as an annular groove, the front end of the corner groove (32) is a chamfer structure, the front end of the intermediate ring plate (31) is flush with the front end of the end plate body (21), and the rear end of the intermediate ring plate (31) protrudes beyond the rear end of the end plate body (21).
7. A non-drive end insulated terminal cover for a marine generator engine as defined in claim 1, wherein: The shapes of the first and second epoxy glass fiber rings (41 and 42), the first, second and third anti-deviation insulation rings (45, 46 and 47) are all hollow cylinders, the insulation plate assembly (4) is clamped on the inside of the end plate body (21) and the outside of the polyester tape (5), the embedded hole (43) penetrates the inside of the second epoxy glass fiber ring (42), the front end of the second epoxy glass fiber ring (42) is tightly attached to the rear end of the end plate body (21), the first epoxy glass fiber ring (41) and the inner convex ring (44) are flush with the front end of the end plate body (21), and the inside of the embedded hole (43) is attached to the outside of the rear end of the insulation tube (64).
8. A non-drive end insulated terminal cover for a marine generator engine as defined in claim 1, wherein: The threaded fixing hole (35) penetrates the inside of the intermediate ring plate (31), the inside of the threaded fixing hole (35) opened by the intermediate ring plate (31) is spirally attached to the outside of the rear end of the fixing bolt (61), the number of the threaded fixing hole (35) is the same as the number of the fixing bolt (61), the intermediate ring plate (31) is fixed to the end plate body (21) through the fixing bolt (61), the bearing fixing hole (36) penetrates the inside of the intermediate ring plate (31), the bearing is fixed on the intermediate ring plate (31), and the number of the bearing fixing hole (36) is the same as the number of the mounting hole on the bearing.
9. A non-drive end insulated terminal cover for a marine generator engine as defined in claim 1, wherein: The insulating tube (64) is embeddedly installed in the inner side of the fixed straight hole (25), the front end of the insulating tube (64) is flush with the front end of the end plate body (21), the rear end of the insulating tube (64) is attached to the rear end of the second filling groove (34) of the middle ring plate (31), the rear end of the elastic gasket (62) is attached to the front end of the insulating gasket (63), the rear end of the insulating gasket (63) is attached to the front end of the end plate body (21), and the fixed bolt (61) is embeddedly installed in the inner side of the isolation groove (65).