A generator housing assembly seal

Abstract

The utility model relates to generator casing technical field, and disclose a kind of generator casing combined sealing structure, including rack, generator set and motor fixed shell are fixedly installed on the rack, the one end of motor fixed shell near generator set is provided with front end cover subassembly, the one end of motor fixed shell away from generator set is fixedly installed with outer frame subassembly, the front end cover subassembly includes front cover and mounting cover, the one end of mounting cover near motor fixed shell is provided with mounting groove, the connecting flange is fixedly installed in motor fixed shell outer edge portion.This generator casing combined sealing structure, through mounting groove and motor fixed shell nesting cooperation, when both install shell, play preliminary sealing, prevent external dust, water vapor directly intrude, and sealing ring two of motor fixed shell inner edge is compressed between mounting cover and motor fixed shell, fill gap by the elastic deformation of rubber, enhance sealing effect.

Description

Technical Field

[0001] This utility model relates to the field of generator housing technology, specifically a generator housing combined sealing structure. Background Technology

[0002] As the core load-bearing and protective component of a generator, the sealing performance of the generator casing directly affects the generator's operational reliability, lifespan, and safety. During generator operation, the interior of the casing typically contains the rotor, bearings, and stator windings, and may be exposed to water and oil mist. Simultaneously, the exterior of the casing may face corrosion from pollutants such as dust, moisture, corrosive gases (in industrial environments), and salt spray (in marine environments). Therefore, to prevent leakage of internal media such as lubricating oil and coolant, avoid resource waste and environmental pollution, and prevent the intrusion of external contaminants, as well as to prevent degradation of the insulation performance of internal components and wear or corrosion of mechanical parts, a sealing performance is crucial.

[0003] Chinese Invention Patent Publication No. CN115395709A discloses a generator housing combined sealing structure. The specification of this generator housing combined sealing structure discloses that a movable block is connected to the base of the spring, a small spring is provided on the upper part of the movable block, a protrusion is on the outside of the mounting sleeve, a mounting sleeve cover is provided on the side wall of the cover, a stationary ring is provided inside the mounting sleeve, and a protrusion is connected to the lower part of the stationary ring. This structure offers high motor housing sealing performance, a simple structure, is very easy to operate, and has high practicality. However, it lacks a multi-layered sealing protection structure. If a single structure fails after prolonged use, it can easily affect the normal operation of the entire generator, thus hindering its widespread adoption. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a generator housing combined sealing structure, which can effectively solve the problem in the prior art that the lack of a multi-layer sealing protection structure makes it easy for a single structure to fail after long-term use, thus affecting the normal use of the whole generator and making it inconvenient to promote its use.

[0005] The technical solution adopted by this utility model is: a generator housing combined sealing structure, including a frame, on which a generator set and a motor mounting shell are fixedly installed. A front cover assembly is provided at the end of the motor mounting shell near the generator set, and an outer frame assembly is fixedly installed at the end of the motor mounting shell away from the generator set. The front cover assembly includes a front cover and a mounting cover. The mounting cover has a mounting groove at one end near the motor mounting housing. A connecting flange is fixedly installed at the outer edge of the motor mounting housing. The outer frame assembly includes a mounting frame and a base frame, and the generator set and motor mounting housing are located inside the outer frame assembly.

[0006] Preferably, the mounting groove is nested with the motor mounting housing, and a sealing ring is fixedly installed along the inner edge of the motor mounting housing.

[0007] Through the above technical solution, the mounting groove and the motor mounting shell are nested together. When the two are mounted, they provide a preliminary seal to prevent external dust and moisture from directly intruding. Furthermore, the sealing ring 2 on the inner edge of the motor mounting shell is compressed between the mounting cover and the motor mounting shell. The elastic deformation of the rubber fills the gap and enhances the sealing effect.

[0008] Preferably, the second sealing ring is a rubber ring, and multiple identical second sealing rings are provided and are distributed at equal intervals along the inner edge of the motor mounting housing.

[0009] The above technical solution forms a multi-seal structure by using multiple equally spaced rubber sealing rings. When a single sealing ring fails due to aging or wear, the remaining sealing rings can still play a sealing role. Furthermore, the equally spaced layout ensures uniform sealing pressure and avoids the risk of leakage caused by localized poor sealing.

[0010] Preferably, a mounting bolt is fixedly installed between the front cover and the connecting flange, the mounting bolt passing through the front cover and the connecting flange and being threaded.

[0011] The above technical solution allows for easy fixing of the front cover and connecting flange by means of a mounting bolt that passes through them and is threaded together. This prevents the front cover assembly from loosening during generator vibration. Furthermore, the preload of the threaded connection ensures that the front cover tightly compresses the sealing ring, enhancing the sealing effect.

[0012] Preferably, there are four identical mounting frames, which are located at the four corners of the frame, and two of the mounting frames have side plates fixedly mounted on one end.

[0013] With the above technical solution, four mounting frames are located at the four corners of the frame, forming a supporting skeleton for the outer frame assembly. Together with the side plates on both sides, they connect adjacent mounting frames, enclosing the sides of the frame, preventing external debris from entering, and enhancing the overall rigidity of the outer frame.

[0014] Preferably, a top cover and a positioning frame are fixedly installed at the end of the mounting frame away from the base frame, and a reinforcing angle is fixedly installed at the end of the base frame away from the mounting frame, wherein the reinforcing angle has a triangular cross-section.

[0015] Through the above technical solution, the top cover and positioning frame seal the top of the outer frame assembly to prevent rainwater and foreign objects from falling in, and the triangular reinforcing corner is fixed to the corner of the base frame. The triangular design can enhance the load-bearing capacity of the base frame, prevent the outer frame from deforming due to the weight of the generator set or external impact, and improve the stability of the overall structure.

[0016] Preferably, a sealing ring is fixedly installed on the inner edge of the motor mounting housing away from the front cover assembly, a rear cover is sleeved on the motor mounting housing away from the front cover assembly, the rear cover and the sealing ring are interference fit, and a base is fixedly installed on the end of the frame away from the generator set.

[0017] The above technical solution forms a rear-end seal by interfering with the sealing ring on the inner edge of the motor housing and the rear cover. The base supports the frame, reducing vibration transmission during generator operation. Combined with the sealing structure of the front cover assembly, a double sealing structure can be formed, improving its practicality.

[0018] Compared with the prior art, the present invention provides a generator housing combined sealing structure, which has the following beneficial effects: 1. The generator housing combined sealing structure is nested with the motor mounting housing through the mounting groove. When the two are mounted, they provide a preliminary seal to prevent external dust and moisture from directly intruding. The sealing ring 2 on the inner edge of the motor mounting housing is compressed between the mounting cover and the motor mounting housing. The elastic deformation of the rubber fills the gap and enhances the sealing effect. 2. The generator housing assembly sealing structure forms a rear-end seal by interfering with the sealing ring on the inner edge of the motor fixing housing and the rear cover. The base supports the frame, reducing vibration transmission during generator operation. Combined with the sealing structure of the front cover assembly, it forms a double sealing structure, improving its practicality. The four mounting frames are located at the four corners of the frame, forming the supporting skeleton of the outer frame assembly. Together with the side plates on both sides, they connect to the adjacent mounting frames, sealing the sides of the frame and preventing external debris from entering. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ; Figure 3 This is a three-dimensional structural diagram of the outer frame component of this utility model; Figure 4 This is a three-dimensional structural diagram of the motor fixing shell and front end cover assembly of this utility model; Figure 5 This is a schematic cross-sectional view of the front cover assembly of this utility model; Figure 6 This is a schematic diagram showing the disassembled structure of the motor fixing shell and front cover assembly of this utility model.

[0020] The components include: 1. Frame; 2. Base; 3. Generator set; 4. Motor mounting housing; 5. Rear cover; 6. Sealing ring one; 7. Front cover assembly; 701. Front cover; 702. Mounting cover; 703. Mounting groove; 704. Sealing ring two; 705. Connecting flange; 706. Mounting bolt; 8. Outer frame assembly; 801. Mounting frame; 802. Side plate; 803. Top cover; 804. Positioning frame; 805. Base frame; 806. Reinforcing angle. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1: As Figure 1-6 As shown, the present invention provides a generator housing combined sealing structure, including a frame 1, on which a generator set 3 and a motor mounting shell 4 are fixedly installed. A front end cover assembly 7 is provided at the end of the motor mounting shell 4 near the generator set 3, and an outer frame assembly 8 is fixedly installed at the end of the motor mounting shell 4 away from the generator set 3. The front cover assembly 7 includes a front cover 701 and a mounting cover 702. The mounting cover 702 has a mounting groove 703 at one end near the motor mounting housing 4. A connecting flange 705 is fixedly installed at the outer edge of the motor mounting housing 4. The outer frame assembly 8 includes a mounting frame 801 and a base frame 805, with the generator set 3 and the motor mounting housing 4 located inside the outer frame assembly 8.

[0023] Specifically, the mounting groove 703 is nested with the motor mounting housing 4, and a sealing ring 704 is fixedly installed on the inner edge of the motor mounting housing 4. The advantage is that, through the nesting and cooperation of the mounting groove 703 and the motor mounting housing 4, when the two are mounted, a preliminary seal is achieved to prevent external dust and moisture from directly intruding. Furthermore, the sealing ring 704 on the inner edge of the motor mounting housing 4 is compressed between the mounting cover 702 and the motor mounting housing 4, and the elastic deformation of the rubber fills the gap, enhancing the sealing effect.

[0024] Specifically, the second sealing ring 704 is a rubber ring. Multiple second sealing rings 704 are provided and are evenly distributed along the inner edge of the motor mounting housing 4. The advantage is that multiple equally distributed rubber sealing rings 704 form a multi-seal structure. When a single sealing ring fails due to aging or wear, the remaining sealing rings can still play a sealing role. In addition, the evenly spaced layout ensures uniform sealing pressure and avoids the risk of leakage caused by local poor sealing.

[0025] Specifically, a mounting bolt 706 is fixedly installed between the front cover 701 and the connecting flange 705. The mounting bolt 706 passes through the front cover 701 and the connecting flange 705 and is threaded. The advantage is that by using the mounting bolt 706 to pass through the front cover 701 and the connecting flange 705 and thread it, it is easy to fix the two together, preventing the front cover assembly 7 from loosening when the generator vibrates. In addition, the preload of the threaded connection makes the front cover 701 tightly press against the sealing ring 704, enhancing the sealing effect.

[0026] Example 2: Figure 2-6 As shown, this is an improvement on the previous embodiment.

[0027] Specifically, there are four identical mounting frames 801, which are located at the four corners of the frame 1. Two mounting frames 801 have side plates 802 fixedly installed at one end. The advantage is that the four mounting frames 801 are located at the four corners of the frame 1, forming the supporting skeleton of the outer frame assembly 8. Together with the side plates 802 on both sides, they connect the adjacent mounting frames 801, close the side of the frame 1, prevent external debris from entering, and enhance the overall rigidity of the outer frame.

[0028] Specifically, a top cover 803 and a positioning bracket 804 are fixedly installed at the end of the mounting frame 801 away from the base frame 805, and a reinforcing angle 806 is fixedly installed at the end of the base frame 805 away from the mounting frame 801. The reinforcing angle 806 has a triangular cross-section. The advantage is that the top cover 803 and the positioning bracket 804 enclose the top of the outer frame assembly 8, preventing rainwater and foreign objects from falling in. Furthermore, the triangular reinforcing angle 806 is fixed at the corner of the base frame 805. The triangular design can enhance the load-bearing capacity of the base frame 805, prevent the outer frame from deforming due to the weight of the generator set 3 or external impacts, and improve the overall structural stability.

[0029] Specifically, a sealing ring 6 is fixedly installed on the inner edge of the motor mounting housing 4 away from the front cover assembly 7. A rear cover 5 is sleeved on the motor mounting housing 4 away from the front cover assembly 7. The rear cover 5 and the sealing ring 6 are interference fit. A base 2 is fixedly installed on the end of the frame 1 away from the generator set 3. The advantage is that the sealing ring 6 on the inner edge of the motor mounting housing 4 and the rear cover 5 are interference fit to form a rear end seal. The base 2 supports the frame 1, reducing the vibration transmission during generator operation. Combined with the sealing structure of the front cover assembly 7, a double sealing structure can be formed, improving its practicality.

[0030] Working Principle: During use, the mounting groove 703 nests with the motor mounting housing 4. When the two are mounted, they provide an initial seal, preventing external dust and moisture from directly intruding. The sealing ring 704 on the inner edge of the motor mounting housing 4 is compressed between the mounting cover 702 and the motor mounting housing 4. The elastic deformation of the rubber fills the gaps, enhancing the sealing effect. Multiple equally spaced rubber sealing rings 704 form a multi-layer sealing structure. Even if a single sealing ring fails due to aging or wear, the remaining sealing rings can still provide a seal. The evenly spaced layout ensures uniform sealing pressure, avoiding the risk of leakage due to localized poor sealing. The mounting bolt 706 passes through the front cover 701 and the connecting flange 705 and is threaded together, facilitating the fixation of both and preventing the front cover assembly 7 from loosening during generator vibration. The preload of the threaded connection ensures that the front cover 701 tightly compresses the sealing ring. The sealing ring 704 enhances the sealing effect. The four mounting frames 801 are located at the four corners of the frame 1, forming the supporting skeleton of the outer frame assembly 8. Together with the side plates 802 on both sides, they connect the adjacent mounting frames 801, sealing the sides of the frame 1 to prevent external debris from entering, while also enhancing the overall rigidity of the outer frame. The top cover 803 and the positioning frame 804 seal the top of the outer frame assembly 8 to prevent rainwater and foreign objects from falling in. The triangular reinforcing corner 806 is fixed to the corner of the base frame 805. The triangular design enhances the load-bearing capacity of the base frame 805, preventing the outer frame from deforming due to the weight of the generator set 3 or external impacts, thus improving the overall structural stability. The sealing ring 6 on the inner edge of the motor mounting shell 4 is press-fitted with the rear cover 5 to form a rear end seal. The base 2 supports the frame 1, reducing the vibration transmission during generator operation. Together with the sealing structure of the front cover assembly 7, a double sealing structure can be formed, improving its practicality.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A generator housing combined sealing structure, comprising a frame (1), wherein a generator set (3) and a motor mounting shell (4) are fixedly mounted on the frame (1), characterized in that: The motor mounting housing (4) is provided with a front cover assembly (7) at one end near the generator set (3), and an outer frame assembly (8) is fixedly installed at the other end of the motor mounting housing (4) away from the generator set (3). The front cover assembly (7) includes a front cover (701) and a mounting cover (702). The mounting cover (702) has a mounting groove (703) at one end near the motor mounting housing (4). A connecting flange (705) is fixedly installed at the outer edge of the motor mounting housing (4). The outer frame assembly (8) includes a mounting frame (801) and a base frame (805), and the generator set (3) and the motor mounting housing (4) are located inside the outer frame assembly (8).

2. The generator housing combined sealing structure according to claim 1, characterized in that: The mounting groove (703) is nested with the motor mounting shell (4), and a sealing ring (704) is fixedly installed on the inner edge of the motor mounting shell (4).

3. The generator housing combined sealing structure according to claim 2, characterized in that: The sealing ring 2 (704) is a rubber ring, and multiple sealing rings 2 (704) are provided and are distributed at equal intervals along the inner edge of the motor fixing shell (4).

4. The generator housing combined sealing structure according to claim 1, characterized in that: A mounting bolt (706) is fixedly installed between the front cover (701) and the connecting flange (705). The mounting bolt (706) passes through the front cover (701) and the connecting flange (705) and is threaded.

5. The generator housing combined sealing structure according to claim 1, characterized in that: There are four identical mounting frames (801), and the four mounting frames (801) are located at the four corners of the frame (1). Two of the mounting frames (801) have a side plate (802) fixedly installed at one end.

6. The generator housing combined sealing structure according to claim 1, characterized in that: The top cover (803) and the positioning frame (804) are fixedly installed at the end of the mounting frame (801) away from the base frame (805). The reinforcing angle (806) is fixedly installed at the end of the base frame (805) away from the mounting frame (801). The cross section of the reinforcing angle (806) is a "triangular" structure.

7. The generator housing combined sealing structure according to claim 1, characterized in that: A sealing ring (6) is fixedly installed on the inner edge of the motor mounting housing (4) away from the front cover assembly (7). A rear cover (5) is sleeved on the motor mounting housing (4) away from the front cover assembly (7). The rear cover (5) and the sealing ring (6) are interference fit. A base (2) is fixedly installed on the end of the frame (1) away from the generator set (3).

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