End cover assembly of magnetism-assisting synchronous reluctance high-voltage motor

Abstract

The utility model belongs to the technical field of end cover assemblies, and particularly relates to a magnetism-assisting synchronous reluctance high-voltage motor end cover assembly, which comprises a shell, the outer wall of the shell is integrally connected with a mounting lug, the back end of the shell is provided with a motor shell, and the surface of the mounting lug is connected with a fixing bolt in a threaded penetrating manner. The outer wall, located on one side of the mounting lug, of the shell is connected with a fixing block. According to the utility model, through cooperation among the fixing block, the threaded rod, the guide rod and the supporting block, assembling personnel only need to take out the fixing bolts and penetrate through the mounting lugs to be connected with the motor shell, so that assembling can be completed. Through cooperation and fixation of the supporting block and the motor shell, the problem of shell position deviation caused by insufficient palm supporting force is effectively avoided, so that butt joint of the shell and the motor shell is ensured, the assembling efficiency is greatly improved, and meanwhile, the assembling quality is ensured.

Description

Technical Field

[0001] This utility model belongs to the technical field of end cover assembly, specifically relating to an end cover assembly for a magnetizing synchronous reluctance high-voltage motor. Background Technology

[0002] The rotor of an assisted-magnetic synchronous reluctance high-voltage motor employs a unique design, typically composed of permanent magnets and reluctance materials. When three-phase alternating current is applied to the stator windings, a rotating magnetic field is generated. This rotating magnetic field interacts with the permanent magnets on the rotor, producing permanent magnet torque. Simultaneously, due to the rotor's salient-pole structure, there is a difference in reluctance between the direct and quadrature axes, which, under the influence of the rotating magnetic field, generates reluctance torque. The motor relies on the combination of these two torques to drive its rotation. An assisted-magnetic synchronous reluctance high-voltage motor mainly consists of a stator, rotor, permanent magnets, motor housing, and front and rear end covers.

[0003] As a fixing component of the motor stator and rotor, the end cover performs several important functions. It needs to withstand the motor's mechanical loads, ensuring the concentricity and axial stability of the rotor and stator; it must prevent external impurities such as dust and moisture from entering the motor, protecting critical components such as the motor windings and bearings; since high-voltage motors generate a large amount of heat during operation, the end cover must be designed with heat dissipation channels or be integrated with fans and cooling systems to ensure the motor temperature is maintained within a safe range; the end cover typically has a bearing housing for installing and supporting bearings, ensuring smooth rotor rotation; in addition, the end cover may also need to reserve space for installing electrical components such as encoders and temperature sensors to support motor control and monitoring.

[0004] In the assembly process of a magnetized synchronous reluctance high-voltage motor, the assembly of the motor housing with the front and rear end covers is a critical step. The end covers are connected to the motor housing with bolts, but currently this step relies entirely on manual operation. During assembly, workers must align the end covers with the motor housing, holding the end cover with one hand to maintain its position while using the other hand to tighten the bolts. However, if the worker's support for the end cover is insufficient, the end cover will shift, causing a misalignment with the mating holes on the motor housing. At this point, the worker must remove the bolts, readjust the end cover's position, and then reassemble it. This repeated adjustment significantly reduces assembly efficiency. Utility Model Content

[0005] The purpose of this invention is to provide an end cover assembly for a magnetizing synchronous reluctance high-voltage motor, aiming to solve the problem in existing technologies where, during assembly, workers need to align the end cover with the motor housing, holding it with one hand to maintain its position while using the other to tighten bolts. However, if the worker's support is insufficient, the end cover will shift, causing a misalignment with the mating hole in the motor housing. In this case, the worker must remove the bolts, readjust the end cover's position, and then reassemble it. This repeated adjustment significantly reduces assembly efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary magnet synchronous reluctance high-voltage motor end cover assembly, comprising a housing, an integrally connected mounting ear on the outer wall of the housing, a motor housing at the back end of the housing, a fixing bolt threaded through the surface of the mounting ear, a fixing block connected to the outer wall of the housing on one side of the mounting ear, a support block provided inside the recess of the fixing block, a threaded rod threaded through the front end of the fixing block, a guide rod threaded through the front end of the fixing block, an annular block connected to the front end of the mounting ear, a groove formed on the inner wall of the annular block, a sealing gasket installed on the inner wall of the annular block, and a protrusion connected to the outer wall of the sealing gasket.

[0007] In a preferred embodiment of the magnetizing synchronous reluctance high-voltage motor end cover assembly of this utility model, the threaded rod is rotatably connected to the inside of the support block through the threaded end of the fixing block.

[0008] In a preferred embodiment of the magnetizing synchronous reluctance high-voltage motor end cover assembly of this utility model, the guide rod passes through the end of the fixing block and is connected to the support block.

[0009] In a preferred embodiment of the magnetizing synchronous reluctance high-voltage motor end cover assembly of this utility model, the guide rod and the threaded rod have the same length.

[0010] As a preferred embodiment of the magnetizing synchronous reluctance high-voltage motor end cover assembly of this utility model, the support block can form a telescopic movement with the fixed block through a threaded rod and a guide rod.

[0011] In a preferred embodiment of the magnetizing synchronous reluctance high-voltage motor end cover assembly of this utility model, the protrusion and the groove are adapted to each other in size.

[0012] In a preferred embodiment of the magnetizing synchronous reluctance high-voltage motor end cover assembly of this utility model, the inner diameter of the sealing gasket is the same as the diameter of the threaded groove penetrating the surface of the mounting ear, and the sealing gasket can be fitted and connected with the annular block through the protrusion and groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] By coordinating the fixed block, threaded rod, guide rod, and support block, the assembler rotates the threaded rod, causing it to move along the fixed block. This, in turn, pushes the support block, causing the guide rod to slide within the fixed block. Ultimately, the support block moves to the surface of the motor housing and engages with it, achieving relative positional stability. Afterward, the assembler simply removes the fixing bolts, passes them through the mounting ears, and connects them to the motor housing to complete the assembly. This method of fixing the motor housing with the support block effectively avoids the problem of housing misalignment due to insufficient hand support, thus ensuring proper alignment between the housing and the motor housing, significantly improving assembly efficiency while guaranteeing assembly quality.

[0015] Through the cooperation between the annular block groove sealing gasket and the protrusion, the sealing gasket can seal the connection between the fixing bolt and the annular block when the fixing bolt passes through the mounting ear and connects to the motor housing. The presence of this sealing gasket effectively prevents dust from the outside air from seeping in through the connection between the fixing bolt and the annular block. This ensures smooth subsequent disassembly and assembly of the housing and motor housing, improving the reliability and convenience of motor assembly and maintenance. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a three-dimensional structural diagram of the end cap of this utility model;

[0018] Figure 2 This is a schematic diagram of the assembly structure of the end cap and motor housing of this utility model;

[0019] Figure 3 This is a schematic diagram of the end cap and fixing bolt structure of this utility model;

[0020] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the diagram;

[0021] Figure 5 This utility model Figure 3 A magnified structural diagram at point B in the diagram.

[0022] In the diagram: 1. Housing; 2. Mounting ear; 3. Fixing bolt; 4. Fixing block; 5. Threaded rod; 6. Guide rod; 7. Support block; 8. Annular block; 9. Sealing gasket; 10. Groove; 11. Protrusion; 12. Motor housing. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-5 The present invention provides the following technical solution: a magnetizing synchronous reluctance high voltage motor end cover assembly, including a housing 1, an mounting ear 2 integrally connected to the outer wall of the housing 1, a motor housing 12 provided at the back end of the housing 1, a fixing bolt 3 threadedly connected to the surface of the mounting ear 2, a fixing block 4 connected to the outer wall of the housing 1 on one side of the mounting ear 2, and a support block 7 provided inside the recess of the fixing block 4.

[0025] A threaded rod 5 is threaded through the front end of the fixing block 4, a guide rod 6 is threaded through the front end of the fixing block 4, an annular block 8 is connected to the front end of the mounting ear 2, a groove 10 is provided on the inner wall of the annular block 8, a sealing gasket 9 is installed on the inner wall of the annular block 8, and a protrusion 11 is connected to the outer wall of the sealing gasket 9.

[0026] In practical use, the end cap assembly mainly consists of a housing 1 and mounting ears 2. Typically, the end cap is made of a high-strength, corrosion-resistant material with a certain degree of rigidity, such as aluminum alloy or cast iron, and the appropriate material can be selected according to actual needs. During use, the end cap assembly is assembled to the motor housing 12 using fixing bolts 3 to achieve a fixed installation of the end cap on the motor. The end cap assembly and the motor housing 12 have the same dimensions.

[0027] Preferably, the threaded rod 5 is threaded through the end of the fixed block 4 and rotatably connected to the inside of the support block 7. The guide rod 6 passes through the end of the fixed block 4 and is connected to the support block 7. The guide rod 6 has the same length as the threaded rod 5. The support block 7 can extend and retract with the fixed block 4 through the threaded rod 5 and the guide rod 6.

[0028] In practical use, since the threaded rod 5 is threaded through the fixed block 4 and forms a rotatable connection with the support block 7, when the assembler rotates the threaded rod 5, it will move along the fixed block 4. During this process, the threaded rod 5 will drive the support block 7 to move together. Simultaneously, the rotation between the support block 7 and the threaded rod 5 is limited by the guide rod 6, which passes through the end of the fixed block 4 and connects to the support block 7. This design ensures that the support block 7 can move smoothly without affecting the normal rotation of the threaded rod 5. Furthermore, the guide rod 6 is the same length as the threaded rod 5, which ensures that the movement range of the threaded rod 5 will not exceed the limiting range of the guide rod 6, allowing the guide rod 6 to always perform its limiting function.

[0029] Preferably, the dimensions of the protrusion 11 and the groove 10 are matched. The inner diameter of the sealing gasket 9 is the same as the diameter of the threaded groove penetrating the surface of the mounting ear 2, and the sealing gasket 9 can be fitted with the annular block 8 through the protrusion 11 and the groove 10.

[0030] In practical use, during the assembly of the end cover assembly and the motor housing 12, the assembler can first embed the sealing gasket 9 into the annular block 8 and insert the protrusion 11 into the groove 10 to restrict the position of the sealing gasket 9. Then, remove the fixing bolt 3, pass it through the mounting ear 2, and connect it to the motor housing 12. At this point, the sealing gasket 9 can fit tightly, effectively sealing the connection between the fixing bolt 3 and the annular block 8. This design of the sealing gasket 9 has a significant effect, effectively preventing dust from the outside air from seeping into the motor through the connection between the fixing bolt 3 and the annular block 8. This protective measure ensures the smoothness of subsequent disassembly and assembly operations of the housing 1 and the motor housing 12, greatly improving the reliability and convenience of motor assembly and maintenance.

[0031] Working principle: The assembler first embeds the sealing gasket 9 into the annular block 8 and inserts the protrusion 11 into the groove 10, thereby restricting the position of the sealing gasket 9. Next, the housing 1 is fitted onto the motor housing 12. Subsequently, the assembler rotates the threaded rod 5, which moves along the fixing block 4, thereby pushing the support block 7 and causing the guide rod 6 to slide inside the fixing block 4. Finally, the support block 7 moves to the surface of the motor housing 12 and engages with it, achieving a stable fixation of their relative positions.

[0032] After completing the above operations, the assembler only needs to take out the fixing bolt 3, pass it through the mounting ear 2, and connect it to the motor housing 12 to complete the assembly. This method of fixing the motor housing 12 with the support block 7 effectively avoids the problem of the housing 1 shifting due to insufficient support force from the palm, ensuring the precise docking of the housing 1 and the motor housing 12, greatly improving assembly efficiency, and also ensuring assembly quality.

[0033] When the fixing bolt 3 passes through the mounting ear 2 and connects to the motor housing 12, the previously embedded sealing gasket 9 fits tightly, effectively sealing the connection between the fixing bolt 3 and the annular block 8. This design of the sealing gasket 9 is significant, as it effectively prevents dust from the outside air from seeping into the motor through the connection between the fixing bolt 3 and the annular block 8. This protective measure provides a guarantee for the subsequent disassembly and assembly of the housing 1 and the motor housing 12, ensuring the smoothness of the disassembly and assembly process and greatly improving the reliability and convenience of motor assembly and maintenance.

[0034] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A magnetizing synchronous reluctance high-voltage motor end cover assembly, comprising a housing (1), characterized in that: The outer wall of the housing (1) is integrally connected with a mounting ear (2), and the back end of the housing (1) is provided with a motor housing (12). The surface of the mounting ear (2) is threaded through with a fixing bolt (3). The outer wall of the housing (1) located on one side of the mounting ear (2) is connected with a fixing block (4), and a support block (7) is provided inside the recess of the fixing block (4). The front end of the fixing block (4) is threadedly connected to a threaded rod (5), the front end of the fixing block (4) is threadedly connected to a guide rod (6), the front end of the mounting ear (2) is connected to an annular block (8), the inner wall of the annular block (8) is provided with a groove (10), the inner wall of the annular block (8) is installed with a sealing gasket (9), and the outer wall of the sealing gasket (9) is connected to a protrusion (11).

2. The end cover assembly for a magnetizing synchronous reluctance high-voltage motor according to claim 1, characterized in that: The threaded rod (5) is threaded through the end of the fixed block (4) and rotatably connected to the inside of the support block (7).

3. The end cover assembly for a magnetizing synchronous reluctance high-voltage motor according to claim 1, characterized in that: The guide rod (6) passes through the end of the fixing block (4) and is connected to the support block (7).

4. The end cover assembly for a magnetizing synchronous reluctance high-voltage motor according to claim 1, characterized in that: The guide rod (6) has the same length as the threaded rod (5).

5. The end cover assembly for a magnetizing synchronous reluctance high-voltage motor according to claim 1, characterized in that: The support block (7) can extend and retract with the fixed block (4) via the threaded rod (5) and the guide rod (6).

6. The end cover assembly for a magnetizing synchronous reluctance high-voltage motor according to claim 1, characterized in that: The protrusion (11) is sized to match the groove (10).

7. The end cover assembly for a magnetizing synchronous reluctance high-voltage motor according to claim 1, characterized in that: The inner diameter of the sealing gasket (9) is the same as the diameter of the threaded groove that penetrates the surface of the mounting ear (2). The sealing gasket (9) can be fitted with the annular block (8) through the protrusion (11) and the groove (10).

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