Split type end cover and motor

Abstract

The utility model provides a split type end cap and motor, split type end cap, it includes: first end cap, second end cap, third end cap and fourth end cap, first end cap includes first cylinder and first flange, the axial open end of first cylinder is provided with first flange towards the circumferential outer side, and the first flange is provided with second flange towards the circumferential outer side. The second end cover comprises a first circular ring cylinder and a first convex lug, and the first circular ring cylinder is arranged on the periphery of the first cylindrical barrel in a sleeving manner; the fourth end cover comprises a second cylinder and a second flange, the third end cover comprises a second circular ring cylinder and a second convex lug, and the second circular ring cylinder is arranged on the periphery of the second cylinder in a sleeving mode; the first turned edge and the second turned edge are opposite and attached in the axial direction, and the first end cover, the second end cover, the third end cover and the fourth end cover are fixed into a whole through the first convex lug and the second convex lug; the first end cover and / or the fourth end cover can be replaced according to stators of different heights. According to the utility model, the sealing performance of the motor is improved while the universal performance of the end cover is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor technical field, concretely relates to a split end cover and motor. BACKGROUND

[0002] In the prior art of household appliances, the iron shell motor is widely used due to high process maturity, high wear resistance and durability of the shell, and high optimization degree. In the development process of the structure of the iron shell motor, the end cover often has different heights and cutting edge sizes due to the size constraints of the internal core thickness and the enameled wire scheme, as well as the load mounting structure and other settings, so it does not have good universality. Different heights and cutting edges require new molds to be opened, greatly increasing the development cost.

[0003] Because the motor end cover in the prior art has the technical problems of non-universal mold due to the change of cutting edge and height, and reduced sealing performance of the motor for the purpose of universality of the end cover, a split end cover and motor are designed. SUMMARY

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the defects of the motor end cover in the prior art that cannot balance universality and sealing performance, thereby providing a split end cover and motor.

[0005] To solve the above problems, the utility model provides a split end cover, which comprises:

[0006] The first end cover, the second end cover, the third end cover and the fourth end cover, the first end cover comprises a first cylindrical barrel and a first flange, the first cylindrical barrel is closed at one end in the axial direction and is open at the other end in the axial direction, the first cylindrical barrel has a first containing space inside, the end of the first cylindrical barrel in the axial direction is provided with the first flange which protrudes outward in the circumferential direction, the second end cover comprises a first annular barrel and a first lug, the first lug is a protruding structure provided on the outer periphery of the first annular barrel and protruding outward in the circumferential direction, and the first annular barrel is sleeved on the outer periphery of the first cylindrical barrel;

[0007] The fourth end cover comprises a second cylindrical barrel and a second flange, the second cylindrical barrel is closed at one end in the axial direction and is open at the other end in the axial direction, the second cylindrical barrel has a second containing space inside, the end of the second cylindrical barrel in the axial direction is provided with the second flange which protrudes outward in the circumferential direction, the third end cover comprises a second annular barrel and a second lug, the second lug is a protruding structure provided on the outer periphery of the second annular barrel and protruding outward in the circumferential direction, and the second annular barrel is sleeved on the outer periphery of the second cylindrical barrel;

[0008] The first flange and the second flange are arranged in axial opposition and abutment, so that the first accommodating space and the second accommodating space enclose a closed space to accommodate the stator and the rotor, and the first end cover, the second end cover, the third end cover and the fourth end cover are fixed as a whole through the first lug and the second lug; the first end cover and / or the fourth end cover can be replaced according to different heights of the stator.

[0009] In some embodiments,

[0010] The first circular ring column is arranged in axial abutment with the first flange, and the second circular ring column is arranged in axial abutment with the second flange; the axial height of the first lug is higher than the axial height of the first circular ring column and extends towards the third end cover; the axial height of the second lug is higher than the axial height of the second circular ring column and extends towards the second end cover; so that the first lug and the second lug can be arranged in axial abutment.

[0011] In some embodiments,

[0012] Further comprising a fastener, the first flange is provided with a first mounting hole penetratingly along the axial direction, the first lug is provided with a second mounting hole penetratingly along the axial direction, the second lug is provided with a third mounting hole penetratingly along the axial direction, and the second flange is provided with a fourth mounting hole penetratingly along the axial direction; the first mounting hole, the second mounting hole, the third mounting hole and the fourth mounting hole are in axial opposition, and the fastener sequentially passes through the first mounting hole, the second mounting hole, the third mounting hole and the fourth mounting hole to fix the first end cover, the second end cover, the third end cover and the fourth end cover as a whole; or the fastener sequentially passes through the fourth mounting hole, the third mounting hole, the second mounting hole and the first mounting hole to fix the first end cover, the second end cover, the third end cover and the fourth end cover as a whole.

[0013] In some embodiments,

[0014] The first lug is a plurality of first lugs, the plurality of first lugs are arranged in a circumferential direction of the first circular ring column, the second mounting hole is a plurality of second mounting holes, and the second mounting hole is arranged in one-to-one correspondence with the first lug;

[0015] The second lug is a plurality of second lugs, the plurality of second lugs are arranged in a circumferential direction of the second circular ring column, the third mounting hole is a plurality of third mounting holes, and the third mounting hole is arranged in one-to-one correspondence with the second lug.

[0016] In some embodiments,

[0017] The first mounting hole is in contact with the outer periphery of the first flange to form an arc-shaped hole structure, the second mounting hole is located at the position where the first lug is in contact with the first circular annular column, and the third mounting hole is located at the position where the second lug is in contact with the second circular annular column; and the fourth mounting hole is in contact with the outer periphery of the second flange to form an arc-shaped hole structure.

[0018] In some embodiments,

[0019] The first flange is further provided with a first backup mounting hole penetrating in the axial direction, the first backup mounting hole is arranged in the circumferential direction and spaced apart from the first mounting hole, and the second end cover can be replaced according to the positions of the first mounting hole and the first backup mounting hole.

[0020] The second flange is further provided with a second backup mounting hole penetrating in the axial direction, the second backup mounting hole is arranged in the circumferential direction and spaced apart from the fourth mounting hole, and the third end cover can be replaced according to the positions of the fourth mounting hole and the second backup mounting hole.

[0021] In some embodiments,

[0022] The outer periphery of the first circular annular column is further provided with a third lug protruding outward in the circumferential direction, and the third lug is provided with a fifth mounting hole, and the fifth mounting hole can be connected with the load through the third lug.

[0023] In some embodiments,

[0024] The third lug is arranged in the circumferential direction and spaced apart from the first lug, the radial length of the third lug is longer than the radial length of the first lug, and in the axial projection plane, the distance between the radially innermost end of the fifth mounting hole and the center of the first circular annular column is a first distance, the distance between the radially outer end of the first lug and the center of the first circular annular column is a second distance, and the first distance is greater than the second distance.

[0025] In some embodiments,

[0026] The second end cover and / or the third end cover can be replaced according to different mounting holes on the load; the second end cover can be replaced according to the size of the outer periphery diameter of the first cylindrical barrel, and the third end cover can be replaced according to the size of the outer periphery diameter of the second cylindrical barrel.

[0027] In some embodiments,

[0028] The third lug is a plurality of third lugs, the plurality of third lugs are arranged in the circumferential direction of the first circular annular column, the fifth mounting hole is a plurality of fifth mounting holes, and the fifth mounting hole is arranged in one-to-one correspondence with the third lug.

[0029] When there are a plurality of first lugs, the first lugs and the third lugs are alternately arranged along the circumferential direction.

[0030] The utility model also provides a motor, which includes the aforementioned split end cover.

[0031] The utility model provides a split end cover and a motor with the following beneficial effects:

[0032] The utility model provides a first, a second, a third and a fourth end cover, wherein the first and the fourth end cover are cylindrical barrel structures with flanges, and the second and the third end cover are annular cylinder structures respectively sleeved with the cylindrical barrel of the first end cover and the fourth end cover, so that the flanges of the first and the fourth end cover can be butted together, and the four end covers are fastened into one by the two lugs on the second and the third end cover. Compared with the prior art in which the annular cylinder structure is provided between the two barrel end covers, the butting and fitting of the flanges of the first and the fourth end cover can not increase the axial size, does not destroy the axial gap between the original two end covers, does not affect the sealing, and improves the sealing performance. In addition, the first and / or the fourth end cover can be replaced according to the size of the stator height, which improves the versatility of the split end cover of the utility model, can assemble and combine motors of different axial heights, improves the versatility of the end cover, expands the versatility library of existing motor end covers, improves the versatility of the end cover and improves the sealing performance of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a combined structural diagram of the split end cover of the utility model;

[0034] Figure 2 yes Figure 1 A schematic structural diagram of the first end cover;

[0035] Figure 3 yes Figure 1 A schematic structural diagram of the second end cover;

[0036] Figure 4 yes Figure 1 A schematic structural diagram of the third end cover;

[0037] Figure 5 yes Figure 1 A schematic structural diagram of the fourth end cover;

[0038] Figure 6 yes Figure 1 A longitudinal sectional view of the end cap;

[0039] Figure 7 yes Figure 6 A partial enlarged view of the first and second end caps fitting together;

[0040] Figure 8 is Figure 6 is a partial enlarged view of the third+fourth end cover cooperation in

[0041] Reference signs are indicated as:

[0042] 1, first end cover; 2, second end cover; 3, third end cover; 4, fourth end cover; 5, first cylindrical barrel; 6, first flange; 7, first annular cylindrical body; 8, first lug; 9, second cylindrical barrel; 10, second flange; 11, second annular cylindrical body; 12, second lug; 13, fastener; 131, screw; 132, nut; 14, first mounting hole; 15, second mounting hole; 16, third mounting hole; 17, fourth mounting hole; 18, third lug; 19, fifth mounting hole; 20, first spare mounting hole; 21, second spare mounting hole. DETAILED DESCRIPTION

[0043] 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. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. 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.

[0044] 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.

[0045] The foregoing description, for purposes of explanation, sets forth specific values and arrangements of components and steps that are subject to many options. The intent is to be accurate in describing the principles and novel features of the application. Thus, although the application has been described with reference to specific embodiments thereof, it will be apparent to those of ordinary skill in the art that a number of changes can be made to the embodiments described without departing from the spirit and scope of the application. For example, the various features of the application can be combined in any combination, where possible. Accordingly, the scope of the application is to be construed as encompassing modifications and variations of the specific examples described herein, subject only to the conditions of the prior art.

[0046] In the description of the present application, it needs to be understood that the orientation words such as "front, back, up, down, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicated orientation or position relationship is usually based on the orientation or position relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, without making the opposite statement, these orientation words do not indicate and imply that the device or element referred to must have a particular orientation or be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the scope of protection of the present application; the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0047] For the convenience of description, spatial relative terms such as "over", "above", "upper surface", "upper" and the like can be used herein to describe the spatial position relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawing is inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" other devices or structures. Thus, the example term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative description used herein is interpreted accordingly.

[0048] In addition, it needs to be explained that the use of "first", "second" and the like to limit parts only for the convenience of distinguishing the corresponding parts, and if there is no further declaration, the above words have no special meaning, therefore, it cannot be understood as a limitation on the scope of protection of the present application.

[0049] As Figure 1-8 The utility model provides a split type end cover, it includes:

[0050] The first end cover 1, second end cover 2, third end cover 3 and fourth end cover 4, the first end cover 1 includes first cylindrical barrel 5 and first flanging 6, the first cylindrical barrel 5 axial one end is closed, axial other end is open, the inside of first cylindrical barrel 5 has first containing space, the axial open end of first cylindrical barrel 5 is provided with first flanging 6 to the convex setting of circumferential outside, the second end cover 2 includes first annular cylinder 7 and first lug 8, the first lug 8 is the convex structure of setting in the outer periphery of first annular cylinder 7 and the convex of circumferential outside, first annular cylinder 7 is sleeved in the outer periphery of first cylindrical barrel 5;

[0051] The fourth end cover 4 includes second cylindrical barrel 9 and second flanging 10, the second cylindrical barrel 9 axial one end is closed, axial other end is open, the inside of second cylindrical barrel 9 has second containing space, the axial open end of second cylindrical barrel 9 is provided with second flanging 10 to the convex of circumferential outside, the third end cover 3 includes second annular cylinder 11 and second lug 12, the second lug 12 is the convex structure of setting in the outer periphery of second annular cylinder 11 and the convex of circumferential outside, second annular cylinder 11 is sleeved in the outer periphery of second cylindrical barrel 9;

[0052] The first flanging 6 and the second flanging 10 are arranged in axial opposite and fit, so that the first containing space and the second containing space enclose the space to accommodate stator and rotor, and the first end cover 1, the second end cover 2, the third end cover 3 and the fourth end cover 4 are fixed as a whole through the first lug 8 and the second lug 12;The first end cover 1 and / or the fourth end cover 4 can be replaced according to different height stator.

[0053] The utility model discloses a split type end cover structure of motor, which comprises a first end cover, a second end cover, a third end cover and a fourth end cover, wherein the first end cover and the fourth end cover are both cylindrical barrel body structures with flanges, and the second end cover and the third end cover are both ring cylinder body structures which are respectively sleeved with the cylindrical barrel body of the first end cover and the fourth end cover.

[0054] In the existing motor in the field of household appliances, the iron shell motor is widely used due to high process maturity, high wear resistance and durability of the shell, and high optimization degree. In the structure development process of the iron shell motor, the end cover often has different heights and cutting edge sizes due to the size constraints of the internal core thickness and the enameled wire scheme, as well as the load mounting structure and other settings, so it does not have good universality. Different heights and cutting edges will require new molds.

[0055] The utility model provides a kind of split assembly's cutting edge iron shell end cover scheme, its characteristics are that cylindrical first end cover and fourth end cover are split combination with second and third end cover, the combined end cover structure of the utility model can effectively reduce the situation that mold is not universal due to different heights and cutting edges.

[0056] In some embodiments,

[0057] The first ring cylinder 7 is arranged in abutment with the first flange 6 in the axial direction, and the second ring cylinder 11 is arranged in abutment with the second flange 10 in the axial direction; the axial height of the first lug 8 is higher than the axial height of the first ring cylinder 7, and the first lug 8 extends towards the third end cover 3; the axial height of the second lug 12 is higher than the axial height of the second ring cylinder 11, and the second lug 12 extends towards the second end cover 2; so that the first lug 8 and the second lug 12 can be arranged in abutment in the axial direction.

[0058] It is further preferred structure form of the split end cover of the utility model, through the first annular column is pasted with the first flanging in the axial direction, can shorten the axial dimension of the first annular column and can realize the fastening effect between the first lug and the second lug, the second annular column is pasted with the second flanging in the axial direction, can shorten the axial dimension of the second annular column and can realize the fastening effect between the second lug and the first lug, and then the axial height of the first lug is higher than the axial height of the first annular column, so that the first lug protrudes from the outer periphery of the first annular column to the first flanging, and the axial height of the second lug is higher than the axial height of the second annular column, so that the second lug protrudes from the outer periphery of the second annular column to the second flanging, so that the first lug and the second lug form axial lamination, without increasing the spacing between the first and second flanging, without damaging the axial gap between the original two end covers (the first and fourth end covers), without affecting the sealing, while ensuring the fastening of the first and fourth end covers, the sealing performance is also enhanced, and the universal performance of the end cover is improved.

[0059] In some embodiments,

[0060] Further comprising a fastener 13, a first mounting hole 14 is provided through the first flanging 6 in the axial direction, a second mounting hole 15 is provided through the first lug 8 in the axial direction, a third mounting hole 16 is provided through the second lug 12 in the axial direction, and a fourth mounting hole 17 is provided through the second flanging 10 in the axial direction, the first mounting hole 14, the second mounting hole 15, the third mounting hole 16 and the fourth mounting hole 17 are opposite in the axial direction, and the fastener 13 passes through the first mounting hole 14, the second mounting hole 15, the third mounting hole 16 and the fourth mounting hole 17 in sequence to fix the first end cover 1, the second end cover 2, the third end cover 3 and the fourth end cover 4 as a whole; or the fastener 13 passes through the fourth mounting hole 17, the third mounting hole 16, the second mounting hole 15 and the first mounting hole 14 in sequence to fix the first end cover 1, the second end cover 2, the third end cover 3 and the fourth end cover 4 as a whole.

[0061] The utility model further further through first mounting hole on the first flanging, second mounting hole on the first lug, third mounting hole on the second lug and fourth mounting hole on the second flanging, make this 4 mounting holes set up opposite in the axial direction, thereby utilize fastener to pass through this 4 mounting holes, complete 4 end cover fastening as the effect of a whole. The fastener 13 preferably includes a screw 131 and a nut 132.

[0062] In some embodiments,

[0063] The first lugs 8 are multiple, the multiple first lugs 8 are arranged at intervals along the circumferential direction of the first circular column body 7, the second mounting holes 15 are multiple, and the second mounting holes 15 are arranged one by one corresponding to the first lugs 8.

[0064] The second lugs 12 are multiple, the multiple second lugs 12 are arranged at intervals along the circumferential direction of the second circular column body 11, the third mounting holes 16 are multiple, and the third mounting holes 16 are arranged one by one corresponding to the second lugs 12.

[0065] The first lugs 8 are multiple, the multiple first lugs 8 are arranged at intervals along the circumferential direction of the first circular column body 7, the second mounting holes 15 are multiple, and the second mounting holes 15 are arranged one by one corresponding to the first lugs 8.

[0066] In some embodiments,

[0067] The first mounting hole 14 is in contact with the outer periphery of the first flange 6 to form an arc-shaped hole structure, the second mounting hole 15 is located at the position where the first lug 8 meets the first circular column body 7, and the third mounting hole 16 is located at the position where the second lug 12 meets the second circular column body 11; the fourth mounting hole 17 is in contact with the outer periphery of the second flange 10 to form an arc-shaped hole structure.

[0068] This is the preferred structure form of the first to fourth mounting holes of the utility model, the first mounting hole is arranged at the outer periphery of the first flange, the second mounting hole is arranged at the position where the first lug meets the first circular column body, so that the first mounting hole is matched with the part of the second mounting hole on the first circular column body, the part of the second mounting hole on the first lug is located at the outer periphery of the first mounting hole, and the circular hole is formed by splicing to accommodate the fastener to pass through; similarly, the fourth mounting hole is arranged at the outer periphery of the second flange, the third mounting hole is arranged at the position where the second lug meets the second circular column body, so that the fourth mounting hole is matched with the part of the third mounting hole on the second circular column body, the part of the third mounting hole on the second lug is located at the outer periphery of the fourth mounting hole, and the circular hole is formed by splicing to accommodate the fastener to pass through.

[0069] In some embodiments,

[0070] The first spare mounting hole 20 is arranged through the first flange 6 in the axial direction and is circumferentially spaced from the first mounting hole 14, and the second end cover 2 can be replaced according to the positions of the first mounting hole 14 and the first spare mounting hole 20.

[0071] The second spare mounting hole 21 is arranged through the second flange 10 in the axial direction and is circumferentially spaced from the fourth mounting hole 17, and the third end cover 3 can be replaced according to the positions of the fourth mounting hole 17 and the second spare mounting hole 21.

[0072] The first spare mounting hole 20 is arranged through the first flange 6 in the axial direction and is circumferentially spaced from the first mounting hole 14, and the second end cover 2 can be replaced according to the positions of the first mounting hole 14 and the first spare mounting hole 20.

[0073] The existing iron shell motor end cover structure is combined by upper and lower end covers, and an intermediate end cover is arranged between the upper and lower end covers and is fastened by screws or rivets through fastening holes, which can affect the gap between the original upper and lower end covers, affect the sealing performance, and affect the universality, and the change of the load mounting size can also affect the height and the cutting edge of the end cover.

[0074] The end cover form provided by the utility model is shown in the following table Figure 1The first and fourth end covers with small trimming (first and second flanges) are combined with the second and third end covers with large trimming (first and second lugs). The first flange of the first end cover is provided with an incomplete hole (including a first mounting hole and a first spare mounting hole), which can be combined into a mounting hole or a fastening hole, and different hole positions can be arranged according to different fastening hole or mounting hole requirements, and the stamping process is used for stamping, so that the side surface concentricity and the overall strength are guaranteed. The second end cover 2 and the third end cover 3 are in the form of full trimming (without a cylindrical body, so called full trimming), and the thickness is twice that of the first end cover, and the die casting process can be used for manufacturing to reduce the waste generated by stamping. The assembly sequence is as follows: as shown in the figure, the first and fourth end covers are combined first, then the second and third end covers are combined at a certain angle, the fastening holes or mounting holes are corresponded, and then the screws and nuts are locked, so that the fastening effect is achieved. It can be seen that a certain number of holes are combined into fastening holes (first mounting holes) after assembly, and at the same time, a certain number of holes are not combined (first spare mounting holes) because the mounting hole is complete on the third end cover. The scheme of the utility model can effectively increase the combination of the end cover main body and the trimming, and meet the requirements of the new end cover size without opening a new mold.

[0075] In some embodiments,

[0076] The outer periphery of the first circular cylindrical body 7 is further provided with a third lug 18 outwardly protruding in the circumferential direction, and the third lug 18 is provided with a fifth mounting hole 19, which can be connected with a load through the fifth mounting hole 19 on the third lug 18.

[0077] The utility model further comprises a third lug outwardly protruding in the circumferential direction on the first circular cylindrical body, and a fifth mounting hole on the third lug, which can be connected with an external load.

[0078] In some embodiments,

[0079] The third lug 18 and the first lug 8 are arranged at intervals in the circumferential direction, the radial length of the third lug 18 is longer than the radial length of the first lug 8, and in the axial projection plane, the distance between the radially innermost end of the fifth mounting hole 19 and the center of the first circular cylindrical body 7 is a first distance, the distance between the radially outer end of the first lug 8 and the center of the first circular cylindrical body 7 is a second distance, and the first distance is greater than the second distance.

[0080] The utility model discloses a third lug and first lug are arranged at the circumference interval, so that the interference does not occur between both, the radial length of third lug is longer than the radial length of first lug, especially the radial most inner end of fifth mounting hole is located on the circle of the outer circumferential side of the radial outer end of first lug, can make through the third lug installation load utilize bolt and other structure installation on the outer circumferential of first lug, thereby not affecting the fastening effect of first lug, second lug, further improve the fastening performance and sealing performance of split type end cover.

[0081] In some embodiments,

[0082] The second end cover 2 and / or the third end cover 3 can be replaced according to different mounting holes on the load; the second end cover 2 can be replaced according to the size of the outer diameter of the first cylindrical body 5, and the third end cover 3 can be replaced according to the size of the outer diameter of the second cylindrical body 9.

[0083] The second and / or third end cover of the utility model can be replaced according to different mounting holes on the load, for example, when the load has more and denser mounting holes in the circumferential direction, the second end cover with more and denser fifth mounting holes on the third lug can be selected for cooperation. Since the third lug changes, the first lug also changes accordingly, so the third end cover also selects the structure of the second lug that matches it according to the cooperation condition of the second end cover, improving the universal performance of the end cover and the load connection. The second end cover can be replaced according to the outer diameter of the first cylindrical body, and the third end cover can be replaced according to the outer diameter of the second cylindrical body, which can further improve the universal performance of the split type end cover.

[0084] In some embodiments,

[0085] The third lug 18 is a plurality of third lugs 18 arranged along the circumferential direction of the first annular cylindrical body 7, and the fifth mounting hole 19 is a plurality of fifth mounting holes 19, and the fifth mounting hole 19 is arranged one by one with the third lug 18;

[0086] When the first lug 8 is a plurality of first lugs 8, the first lug 8 and the third lug 18 are arranged alternately along the circumferential direction.

[0087] The utility model discloses a plurality of third lugs, which can make there be a plurality of third lugs and load cooperation fastening structures in the circumferential direction, and can improve the fastening effect and sealing effect between the second end cover and the load. The first and third lugs are arranged alternately, which can ensure the uniformity of the internal fastening of the end cover and the uniformity of the fastening of the end cover and the external load, that is, the fastening stress is uniformly distributed in the circumferential direction.

[0088] The utility model discloses still provide a kind of motor, it includes the split type end cover of preceding.

[0089] The utility model provides a kind of end cover structure of split assembly, by the end cover (first and fourth end cover) of cylindrical small cut edge (i.e. first and second flanging) and the end cover (second and third end cover) of full cut edge (first and second lug) assembly combination, the hole site of its small cut edge and the hole site of full cut edge are mutually combined, different installation angle, different installation diameter motor can be assembled and combined, greatly expand the existing end cover general library.Can solve the problem that existing end cover leads to mold not universal and needs new opening due to cut edge, height size change, while also can not destroy the axial gap between original two end covers, will not affect sealing, improve the sealing performance of motor while improving universality.

[0090] The above only is the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement and improvement etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model. The above only is the preferred implementation mode of the utility model, and it should be pointed out that, for ordinary skilled person in the prior art, on the premise of not departing from the technical principle of the utility model, a plurality of improvements and variations can be made, and these improvements and variations should be regarded as the protection scope of the utility model.

Claims

1. A split end cap, characterized by: The application relates to a split type end cover. The first end cover (1) comprises a first cylindrical barrel (5) and a first flange (6), the first cylindrical barrel (5) is closed at one axial end and is open at the other axial end, the inside of the first cylindrical barrel (5) has a first containing space, the axial open end of the first cylindrical barrel (5) is provided with the first flange (6) which protrudes towards the circumferential outside, the second end cover (2) comprises a first annular cylindrical barrel (7) and a first lug (8), the first lug (8) is a protruding structure which is arranged on the outer periphery of the first annular cylindrical barrel (7) and protrudes towards the circumferential outside, the first annular cylindrical barrel (7) is sleeved on the outer periphery of the first cylindrical barrel (5); The fourth end cover (4) comprises a second cylindrical barrel (9) and a second flange (10), the second cylindrical barrel (9) is closed at one axial end and is open at the other axial end, the inside of the second cylindrical barrel (9) has a second containing space, the axial open end of the second cylindrical barrel (9) is provided with the second flange (10) which protrudes towards the circumferential outside, the third end cover (3) comprises a second annular cylindrical barrel (11) and a second lug (12), the second lug (12) is a protruding structure which is arranged on the outer periphery of the second annular cylindrical barrel (11) and protrudes towards the circumferential outside, the second annular cylindrical barrel (11) is sleeved on the outer periphery of the second cylindrical barrel (9); The first flange (6) and the second flange (10) are arranged in axial opposition and abutment, so that the first containing space and the second containing space form a closed space for containing a stator and a rotor, and the first end cover (1), the second end cover (2), the third end cover (3) and the fourth end cover (4) are fixed as a whole through the first lug (8) and the second lug (12); the first end cover (1) and / or the fourth end cover (4) can be replaced according to different heights of the stator.

2. The split type end cover according to claim 1, wherein The first annular cylindrical barrel (7) is arranged in axial abutment with the first flange (6), and the second annular cylindrical barrel (11) is arranged in axial abutment with the second flange (10); the axial height of the first lug (8) is higher than the axial height of the first annular cylindrical barrel (7) and extends towards the third end cover (3); the axial height of the second lug (12) is higher than the axial height of the second annular cylindrical barrel (11) and extends towards the second end cover (2); so that the first lug (8) and the second lug (12) can be arranged in axial abutment.

3. The split type end cover according to claim 1, wherein Further comprising a fastener (13), the first flange (6) is provided with a first mounting hole (14) penetrating in the axial direction, the first lug (8) is provided with a second mounting hole (15) penetrating in the axial direction, the second lug (12) is provided with a third mounting hole (16) penetrating in the axial direction, and the second flange (10) is provided with a fourth mounting hole (17) penetrating in the axial direction, the first mounting hole (14), the second mounting hole (15), the third mounting hole (16) and the fourth mounting hole (17) are opposite in the axial direction, the fastener (13) passes through the first mounting hole (14), the second mounting hole (15), the third mounting hole (16) and the fourth mounting hole (17) in sequence to fix the first end cover (1), the second end cover (2), the third end cover (3) and the fourth end cover (4) as a whole; or the fastener (13) passes through the fourth mounting hole (17), the third mounting hole (16), the second mounting hole (15) and the first mounting hole (14) in sequence to fix the first end cover (1), the second end cover (2), the third end cover (3) and the fourth end cover (4) as a whole.

4. The split end cover according to claim 3, characterized in that: the first lug (8) is a plurality of, a plurality of the first lug (8) is arranged in the circumferential direction of the first circular column body (7), the second mounting hole (15) is a plurality of, and the second mounting hole (15) is arranged one by one with the first lug (8); the second lug (12) is a plurality of, a plurality of the second lug (12) is arranged in the circumferential direction of the second circular column body (11), the third mounting hole (16) is a plurality of, and the third mounting hole (16) is arranged one by one with the second lug (12).

5. The split end cover according to claim 3, characterized in that: the first mounting hole (14) is connected with the outer periphery of the first flange (6) to form an arc-shaped hole structure, the second mounting hole (15) is located at the position where the first lug (8) and the first circular column body (7) are connected, the third mounting hole (16) is located at the position where the second lug (12) and the second circular column body (11) are connected; the fourth mounting hole (17) is connected with the outer periphery of the second flange (10) to form an arc-shaped hole structure.

6. The split end cover according to claim 3, characterized in that: the first flange (6) is further provided with a first standby mounting hole (20) penetrating in the axial direction, the first standby mounting hole (20) is arranged in the circumferential direction with the first mounting hole (14), and the second end cover (2) can be replaced according to the positions of the first mounting hole (14) and the first standby mounting hole (20). The second flange (10) is further provided with a second spare mounting hole (21) penetrating in the axial direction, the second spare mounting hole (21) is circumferentially spaced from the fourth mounting hole (17), and the third end cover (3) can be replaced according to the positions of the fourth mounting hole (17) and the second spare mounting hole (21).

7. The split end cover according to any one of claims 1-6, characterized in that: The outer periphery of the first circular annular cylinder (7) is further provided with a third lug (18) protruding outward in the circumferential direction, and the third lug (18) is provided with a fifth mounting hole (19), and the fifth mounting hole (19) on the third lug (18) can be connected with a load.

8. The split end cover according to claim 7, characterized in that: The third lug (18) is circumferentially spaced from the first lug (8), the radial length of the third lug (18) is longer than the radial length of the first lug (8), and in the axial projection plane, the distance between the radially innermost end of the fifth mounting hole (19) and the center of the first circular annular cylinder (7) is a first distance, the distance between the radially outer end of the first lug (8) and the center of the first circular annular cylinder (7) is a second distance, and the first distance is greater than the second distance.

9. The split end cover according to claim 7, characterized in that: The second end cover (2) and / or the third end cover (3) can be replaced according to different mounting holes on the load; the second end cover (2) can be replaced according to the size of the outer diameter of the first cylindrical barrel (5), and the third end cover (3) can be replaced according to the size of the outer diameter of the second cylindrical barrel (9).

10. The split end cover according to claim 7, characterized in that: The third lug (18) is a plurality of third lugs (18) spaced along the circumferential direction of the first circular annular cylinder (7), and the fifth mounting hole (19) is a plurality of fifth mounting holes (19) corresponding to the third lug (18); When the first lug (8) is a plurality of first lugs (8), the first lug (8) and the third lug (18) are alternately arranged in the circumferential direction.

11. An electric machine characterized by: The split end cover according to any one of claims 1-10.

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