Multipurpose adaptive motor end cover assembly

Abstract

The utility model discloses a multipurpose adaptive motor end cover assembly which comprises an end cover piece body and a through shaft hole located in the center of the end face of the end cover piece body, and a first blind hole and a second blind hole are formed in the front end face where the end cover piece body is located. The plurality of first blind holes are radially distributed outwards by taking the shaft hole in which the end cover piece body is located as the center, so that the plurality of first blind holes and the end cover piece body form a circular end surface and are in bolted connection with a motor shell; the multiple second blind holes are radially distributed outwards with the shaft hole where the end cover piece body is located as the center, so that the multiple second blind holes and the end cover piece body form a circular end face and are connected with a motor shell through bolts. A concentric annular groove is formed in the rear end face where the shaft hole is located with the shaft hole as the center. The first blind hole and the second blind hole adopted by the whole device are matched with motor shells with different calibers, independent mold opening assembly is not needed, and meanwhile the overall mold opening cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor equipment parts, and in particular relates to a multi-purpose adaptive motor end cover component. Background Art

[0002] The motor end cover is one of the important components of the motor, and its main functions are sealing, fixing, and protecting. The motor end cover is usually made of cast iron, cast aluminum, or other engineering plastics. The design and material of the end cover will vary depending on the type and purpose of the motor. The end cover can effectively seal the motor's wiring cavity and rotor cavity, preventing lubricating oil leakage and external substances such as dust and moisture from entering the motor interior, thereby ensuring the cleanliness of the motor interior and the stability of the lubricating oil. At the same time, the end cover can also fix the motor's rotor, stator and other components, ensuring the stability and reliability of the motor during operation. The end cover can also protect the internal components of the motor from the influence of the external environment, such as preventing moisture, dust, etc. from entering the motor interior, thereby extending the service life of the motor.

[0003] Therefore, companies that manufacture end covers need to have certain technical strength and production capacity to ensure the quality and performance of end covers.

[0004] In the Chinese patent application publication number CN109274195A, the present invention discloses a motor front end cover, including a cover plate, a motor connection hole, and a gearbox connection hole; the cover plate is circular, with an axial hole in the center and a circle of reinforcing ribs on the edge, and four through holes evenly distributed circumferentially on the reinforcing ribs, serving as motor connection holes; three blind holes are provided on the plate surface between the axial hole and the motor connection hole, and the three blind holes are distributed in the form of right-angled isosceles triangles and are staggered with the motor connection holes in the circumferential direction. With this design, when different models of motor housings need to be connected, different end cover parts need to be opened. The mold opening of such end cover parts requires a very high cost standard. For the small-scale trial stage, separate mold opening and production of different end cover parts greatly increases the overall cost expenditure. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a multi-purpose adaptable motor end cover assembly to solve the above-mentioned technical problems existing in the prior art.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A multi-purpose adaptable motor end cover assembly comprises an end cover body and an axial hole passing through the center of the end face of the end cover body. The front end face of the end cover body is provided with a first blind hole and a second blind hole.

[0008] The first blind holes are distributed radially outward with the shaft hole where the end cover body is located as the center, so that the first blind holes and the end cover body form a circular end surface and are bolted to the motor housing;

[0009] The second blind holes are distributed radially outward with the shaft hole where the end cover body is located as the center, so that the second blind holes and the end cover body form a circular end surface, which is bolted to the motor housing;

[0010] A concentrically arranged annular groove is provided on the rear end surface where the shaft hole is located, with the shaft hole as the center.

[0011] Furthermore, a plurality of annular reinforcing ribs are formed on the front end surface of the end cover body along the outer periphery of the shaft hole, and two adjacent groups of annular reinforcing ribs are concentrically arranged.

[0012] Furthermore, multiple groups of linear reinforcing ribs are interconnected between the annular reinforcing ribs. The multiple groups of linear reinforcing ribs are radially distributed outward with the middle part where the shaft hole is located as the center, and the multiple groups of annular reinforcing ribs are connected in series in sequence.

[0013] Furthermore, the outer diameter of the circle formed by the second blind hole and the end cover body is greater than the outer diameter of the circle formed by the first blind hole and the end cover body.

[0014] Furthermore, the outer peripheral edge of the end cover body where the second blind hole is located is filled with a supplementary portion, and the supplementary portion enables the end surface surrounded by the second blind hole and the end cover body to have an overall circular structure.

[0015] Furthermore, when the first blind hole is connected to the motor housing, the first blind hole is drilled, and at the same time, the inner diameter of the annular groove is expanded from φb to φa by turning, and the outer diameter of the annular groove is φA;

[0016] Where φa>φb.

[0017] Furthermore, when the second blind hole is connected to the motor housing, the second blind hole is drilled, and at the same time, the outer diameter of the annular groove is expanded from φA to φB by turning, and the inner diameter of the annular groove is φb;

[0018] Where φB>φA.

[0019] Furthermore, when the first blind hole or the second blind hole is connected to the external motor housing, an independent hole is opened.

[0020] Furthermore, a penetrating connection hole is provided on the outer edge of the end cover body.

[0021] Furthermore, the end cover body is an integrally formed structure.

[0022] Beneficial effects of the utility model:

[0023] 1. This device uses a one-time molding process for the end cover body, and two blind holes of different diameters are opened on the end cover body. Any type of blind hole can be selected for opening operation, and then connected to different motor housings to improve overall adaptability.

[0024] 2. The front end face of the end cover body used in this device has interwoven annular reinforcement ribs and linear reinforcement ribs, which greatly improves the structural pressure bearing strength of the overall end face.

[0025] 3. The annular groove on the rear end face of the end cover body used in this device can adapt to the connection of small-diameter motor housings. When it is necessary to connect a motor housing with a larger diameter, it is only necessary to turn the annular groove to expand the inner diameter of the annular groove to meet the assembly requirements. There is no need for separate mold assembly, and the overall mold cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for describing the embodiments or the prior art.

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0028] Figure 2 This is a front structural diagram of an embodiment of the utility model;

[0029] Figure 3 This is a schematic structural diagram of a first blind hole connection state of an embodiment of the present utility model;

[0030] Figure 4 This is a schematic diagram of the overall structure of the first blind hole end in the open state of the embodiment of the utility model;

[0031] Figure 5 This is a schematic diagram of the rear end structure of the first blind hole in the open state of the embodiment of the utility model;

[0032] Figure 6 This is a schematic structural diagram of a second blind hole connection state of an embodiment of the present utility model;

[0033] Figure 7 This is a schematic diagram of the overall structure of the second blind hole end in the open state of the embodiment of the utility model;

[0034] Figure 8 This is a schematic diagram of the rear end structure of the second blind hole end in the open state of the embodiment of the utility model;

[0035] Figure 9It is a schematic diagram of the overall back structure of an embodiment of the utility model. DETAILED DESCRIPTION

[0036] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0037] like Figure 1 、 Figure 2 As shown, an embodiment of the present invention provides a multi-purpose adaptive motor end cover assembly, including an end cover body 1, and an axial hole 101 (for the motor's rotating shaft to pass through) passing through the center of the end face of the end cover body 1. The front end face of the cover body 1 is provided with a first blind hole 11 and a second blind hole 12. Such blind holes 12 can be directly penetrated by secondary processing, and the end cover body 1 is an integrally formed structure, which is convenient for forming, reduces the use of molds, and reduces cost expenditure.

[0038] Multiple interconnected groups of linear reinforcing ribs 14 are positioned between the annular reinforcing ribs 13. These groups radiate outward from the center of the shaft hole 101, connecting the groups of annular reinforcing ribs 13 in series. Multiple annular reinforcing ribs 13 are formed along the outer periphery of the shaft hole 101 on the front face of the end cap body 1, with adjacent groups of annular reinforcing ribs 13 arranged concentrically. This structural arrangement ensures the overall structural strength of the end cap body 1.

[0039] like Figure 3 、 Figure 4 、 Figure 5 As shown, when the first blind hole 11 is connected to the motor housing 2, a plurality of first blind holes 11 are radially distributed outward with the shaft hole 101 where the end cover body 1 is located as the center, so that the plurality of first blind holes 11 and the end cover body 1 as a whole form a circular end surface, and are bolted to the external motor housing 2. Before the bolt connection, the first blind hole 11 is punched through by secondary processing to form a through hole, and at the same time, the inner diameter of the annular groove 102 is expanded from φb to φa by turning, and the outer diameter of the annular groove is φA and remains unchanged (that is, no secondary processing is required). At this time, φa>φb (that is, the inner diameter of the annular groove 102 is formed using a mold with a smaller inner diameter).

[0040] At this time, the second blind hole 12 is not processed and still forms a blind hole, and is integrated with the end cover body 1 and forms a cover for the end surface of the motor housing 2.

[0041] like Figure 6 、 Figure 7 、 Figure 8As shown, a plurality of second blind holes 12 are radially distributed outward with the axial hole 101 where the end cover body 1 is located as the center, so that the plurality of second blind holes 12 form a circular end surface with the end cover body 1 and are bolted to the motor housing 2. Before the bolt connection, when the second blind hole 12 is connected to the motor housing 2, the second blind hole 12 is subjected to secondary processing to penetrate, and actually forms a through-hole structure. At this time, the first blind hole 11 is not processed and still forms a blind hole, and at the same time forms a whole with the end cover body 1, and forms a cover for the end surface of the motor housing 2 as a whole; the outer diameter of the annular groove 102 is expanded by turning from φA to φB, and the inner diameter φb of the annular groove 102 remains unchanged (that is, no secondary processing is required), wherein φB>φA (at this time, a larger outer diameter size is used when the annular groove 102 is formed, which is convenient for secondary turning and expansion).

[0042] The outer diameter of the circle enclosed by the second blind hole and the end cover body is larger than the outer diameter of the circle enclosed by the first blind hole and the end cover body, that is, the motor housing 2 connected by the first blind hole 11 has a small diameter, and the motor housing 2 connected by the second blind hole 12 has a large diameter. Therefore, the second blind hole 12 is located at the edge position further outward of the end cover body 1. When the diameter of the end cover body 1 in the up-down direction is smaller than the diameter between the two groups of second blind holes 12, the outer peripheral edge of the end cover body 1 where the second blind holes 12 are located is filled with a supplementary portion 121. The supplementary portion 121 realizes that the end face enclosed by the second blind hole 12 and the end cover body 1 has an overall circular structure, and this structural setting will not affect the overall structural strength.

[0043] Of course, as needed, Figure 1 As shown, blind holes can be provided at multiple locations to ensure that at least two or more motor housings 2 are connected to the end cover body 1, thereby improving the overall adaptability to various states.

[0044] A concentric annular groove 102 is provided on the rear end face where the shaft hole 101 is located, with the shaft hole 101 as the center. At this time, the annular groove 102 can be adapted to the motor housing 2 connected to the first blind hole 11, and only the outer diameter of the annular groove 102 needs to be turned.

[0045] When a motor housing 2 that is compatible with the second blind hole 12 is used, the inner diameter of the annular groove 102 is relatively small, and secondary processing is required. That is, when the second blind hole 12 is connected to the motor housing 2, the inner diameter of the annular groove 102 at the rear end of the end cover body 1 is expanded by turning, so that the annular groove 102 is enlarged to adapt to the connection of the motor housing 2.

[0046] A connecting hole 103 is provided on the outer edge of the end cover body 1 for connecting to an external fixing seat.

[0047] like Figure 9As shown, the entire device can be molded only once, resulting in an end cap suitable for two motor housing assemblies, saving overall mold-making costs. When replacement is necessary, simply drilling the blind hole and turning the inner diameter of the annular groove at the rear end is sufficient. This makes it suitable for small-batch trial production, reducing costs.

[0048] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A multi-purpose adaptable motor end cover assembly, comprising an end cover body (1), and an axial hole (101) passing through the center of the end face of the end cover body (1), characterized in that: A first blind hole (11) and a second blind hole (12) are formed on the front end surface of the end cover body (1); A plurality of the first blind holes (11) are radially distributed outwards with the shaft hole (101) where the end cover body (1) is located as the center, so that the plurality of first blind holes (11) and the end cover body (1) form a circular end surface and are bolted to the motor housing (2); A plurality of the second blind holes (12) are radially distributed outwards with the shaft hole (101) where the end cover body (1) is located as the center, so that the plurality of second blind holes (12) and the end cover body (1) form a circular end surface and are bolted to the motor housing (2); A concentrically arranged annular groove (102) is provided on the rear end surface where the shaft hole (101) is located, with the shaft hole (101) as the center; When the first blind hole (11) is connected to the motor housing (2), the first blind hole (11) is opened, and at the same time, the inner diameter of the annular groove (102) is expanded from φb to φa by turning, and the outer diameter of the annular groove (102) is φA; Where φa>φb; When the second blind hole (12) is connected to the motor housing (2), the second blind hole (12) is opened, and at the same time, the outer diameter of the annular groove (102) is expanded from φA to φB by turning, and the inner diameter of the annular groove (102) is φb; Wherein φB>φA.

2. The multi-purpose adaptable motor end cover assembly according to claim 1, characterized in that: A plurality of annular reinforcing ribs (13) are formed on the front end surface of the end cover body (1) along the outer periphery of the shaft hole (101), and two adjacent groups of annular reinforcing ribs (13) are concentrically arranged.

3. The multi-purpose adaptable motor end cover assembly according to claim 2, characterized in that: Multiple groups of linear reinforcing ribs (14) connected to each other are provided between the annular reinforcing ribs (13). The multiple groups of linear reinforcing ribs (14) are radially distributed outward with the middle portion where the shaft hole (101) is located as the center, and the multiple groups of annular reinforcing ribs (13) are connected in series in sequence.

4. The multi-purpose adaptable motor end cover assembly according to claim 1, characterized in that: The outer diameter of the circle enclosed by the second blind hole (12) and the end cover body (1) is greater than the outer diameter of the circle enclosed by the first blind hole (11) and the end cover body (1).

5. The multi-purpose adaptable motor end cover assembly according to claim 4, characterized in that: The outer peripheral edge of the end cover body (1) where the second blind hole (12) is located is filled with a supplementary portion (121), and the supplementary portion (121) enables the end surface surrounded by the second blind hole (12) and the end cover body (1) to have an overall circular structure.

6. The multi-purpose adaptable motor end cover assembly according to claim 1, characterized in that: When the first blind hole (11) or the second blind hole (12) is connected to the external motor housing (2), an independent hole is opened.

7. The multi-purpose adaptable motor end cover assembly according to claim 1, characterized in that: A penetrating connection hole (103) is provided on the outer edge of the end cover body (1).

8. The multi-purpose adaptable motor end cover assembly according to claim 1, characterized in that: The end cover body (1) is an integrally formed structure.

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