Motor flange end cover of high-power steel plate stamping, assembling and welding structure

Abstract

The utility model discloses a motor flange end cover with a high-power steel plate stamping, assembling and welding structure, which relates to the field of motors and comprises an inner end cover, an outer end cover fixedly connected onto the inner end cover, an annular plate fixedly connected onto the outer end cover, inner holes arranged at the centers of the inner end cover and the outer end cover, and bearing chambers arranged at the inner holes and penetrating through the inner end cover and the outer end cover. A plurality of rib plates are fixedly connected in the circumferential direction of the outer end cover and the circumferential direction of the inner end cover at equal intervals, four flange connecting nut blocks are fixedly connected to the outer circumference of the inner end cover, and connecting holes aligned to each other are formed in the outer end cover and the annular plate. Therefore, a traditional cast motor end cover is split into a plurality of small parts for automatic mass machining, the machining period is short, the weight is light, and energy conservation and consumption reduction are remarkable. Most parts are formed by punching and then are welded through an automatic assembly line, so that the problems of low product precision and long processing period are solved; and moreover, the machining allowance of the punched and formed part is small, and the manufacturing cost is lower.

Description

Technical Field

[0001] The utility model relates to the field of motors, in particular to a motor flange end cover with a high-power steel plate stamping and welding structure. Background Art

[0002] The motor end cover is a fixed part used to connect the motor housing with other transmission components. Most of the existing motor end covers are traditional gray iron castings or aluminum alloy die-castings, with large machining allowances. They are usually completed by rough and fine secondary machining. The processing cycle is long, and the castings have high energy consumption, which is difficult to meet the requirements of industrial automation mass production and energy conservation and emission reduction. Therefore, a new motor end cover is designed and produced according to actual needs. Utility Model Content

[0003] The utility model aims to provide a motor flange end cover of a high-power steel plate stamping and welding structure to solve the problems mentioned in the above background technology.

[0004] A motor flange end cover of a high-power steel plate stamping and welding structure comprises an inner end cover, an outer end cover is fixedly connected to the outer end surface of the inner end cover, an annular plate is fixedly connected to the top surface of the outer end cover, inner holes are provided at the centers of the inner and outer end covers, a bearing chamber penetrating the inner and outer end covers is provided at the inner holes, a plurality of ribs are fixedly connected to the outer and outer end covers at equal intervals in the circumferential direction, four flange connection nut blocks are fixedly connected to the outer circumference of the inner end cover, and mutually aligned connection holes are provided on the outer end cover and the annular plate.

[0005] Preferably, the bearing chamber is provided with three connecting parts equidistantly along the circumferential direction, the connecting parts are provided with penetrating threaded holes, and the inner hole is provided with notches for the connecting parts to pass through.

[0006] Preferably, a mounting hole is provided on the flange connection nut block.

[0007] Preferably, a plurality of reinforcing ribs are fixedly connected between the inner wall of the inner end cover and the outer circumferential wall of the bearing chamber.

[0008] Preferably, the inner end cover, the outer end cover and the annular plate are all made of steel plates by stamping and stretching.

[0009] Preferably, a rim is provided on the bottom edge of the inner end cover.

[0010] The advantages of the utility model are: in order to realize industrial automation mass production, the traditional cast motor end cover is split into multiple small parts for mass processing, the processing cycle is short, the weight is light, and the energy saving and consumption reduction are significant;

[0011] The inner end cover, bearing chamber, reinforcing ribs and other parts are all formed by stamping and then welded through an automated assembly line. This can avoid the problem of low product precision and long processing cycle. In addition, the processing allowance of the parts after stamping is smaller, and the manufacturing cost is lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 Schematic diagram of various structures on the outer side of the end cover;

[0013] Figure 2 is a schematic diagram of the structure of the inner side of the end cover;

[0014] Figure 3 It is a schematic diagram after being cut apart of the utility model;

[0015] Figure 4 is a schematic diagram of the structure of the inner end cover;

[0016] Figure 5 This is a structural diagram of the bearing chamber.

[0017] In the figure: 1, inner end cover; 11, wheel rim; 2, outer end cover; 3, annular plate; 4, inner hole; 41, notch;

[0018] 5. bearing chamber; 51. connection portion; 52. threaded hole;

[0019] 6. Rib; 7. Flange connection nut block; 71. Mounting hole; 8. Connection hole; 9. Reinforcement rib. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] like Figures 1 to 5 As shown, a motor flange end cover of a high-power steel plate stamping and welding structure includes an inner end cover 1, an outer end cover 2 is fixedly connected to the outer end surface of the inner end cover 1, and an annular plate 3 is fixedly connected to the top surface of the outer end cover 2. An inner hole 4 is provided at the center of the inner end cover 1 and the outer end cover 2, and a small amount of machining allowance is left for the inner hole 4 by turning or grinding;

[0022] The inner hole 4 is provided with a bearing chamber 5 which penetrates the inner end cover 1 and the outer end cover 2. A plurality of ribs 6 are fixedly connected with the outer end cover 2 and the inner end cover 1 at equal intervals in the circumferential direction. Four flange connection nut blocks 7 are fixedly connected with the outer circumference of the inner end cover 1. The outer end cover 2 and the annular plate 3 are provided with connecting holes 8 which are aligned with each other.

[0023] In this embodiment, the bearing chamber 5 is provided with three connecting parts 51 equidistantly along the circumferential direction. The connecting parts 51 are provided with penetrating threaded holes 52 . The inner hole 4 is provided with notches 41 for the connecting parts 51 to pass through.

[0024] In this embodiment, each flange connection nut block 7 is provided with a mounting hole 71. The mounting hole 71 is used to mount the end cover on the motor base.

[0025] In this embodiment, a plurality of reinforcing ribs 9 are fixedly connected between the inner wall of the inner end cover 1 and the outer circumferential wall of the bearing chamber 5. The reinforcing ribs 9 are used to strengthen the connection relationship and increase the overall rigidity of the end cover.

[0026] In this embodiment, the inner end cover 1, the outer end cover 2 and the annular plate 3 are all made of steel plates by stamping and stretching.

[0027] In this embodiment, the bottom edge of the inner end cover 1 is provided with a rim 11. The groove formed between the rim 11 and the inner end cover 1 is used to place the sealing ring. The inner end cover 1 is obtained by forming the rim 11 by using a high-strength steel plate through the steps of blanking, pressing, shaping and finally spinning.

[0028] Welding process flow:

[0029] Step 1: first position and fix the inner end cover 1, then press the bearing chamber 5 into the inner hole 4 of the inner end cover 1, and at the same time use a positioning fixture to clamp the bearing chamber 5, and then weld the bearing chamber 5 and the inner end cover 1 together using gas shielded welding.

[0030] Step 2: Subsequently, the reinforcing rib 9 is welded and fixed to the inner end cover 1 and the bearing chamber 5 to strengthen the connection between the bearing chamber 5 and the inner end cover 1 and to increase the strength and rigidity of the inner end cover 1 .

[0031] Step three, the outer end cover 2 and the annular plate 3 are welded together in advance, then the inner end cover 1 is turned over, and the bearing chamber 5 is aligned with the inner hole 4 on the outer end cover 2, so that the outer end cover 2 is put on the outside of the bearing chamber 5, and then the outer end cover 2 and the inner end cover 1 are welded together using the rib plate 6 to further strengthen the connection relationship and the overall rigidity of the end cover.

[0032] Step 4: Use the corresponding positioning fixture to adjust the position of the flange connection nut block 7 and the threaded hole 52 on the circumference of the bearing chamber 5, and finally weld the flange connection nut block 7 and the inner end cover 1 together.

[0033] Step 5: Finally, holes are drilled into the flange connection nut block 7, the outer end cover 2 and the annular plate 3 to obtain the mounting holes 71 and the connection holes 8.

[0034] It is known from common technical knowledge that the present invention can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the embodiments disclosed above are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. A motor flange end cover of a high-power steel plate stamping and welding structure, characterized in that: The invention comprises an inner end cover (1), an outer end cover (2) is fixedly connected to the outer end surface of the inner end cover (1), an annular plate (3) is fixedly connected to the top surface of the outer end cover (2), an inner hole (4) is provided at the center of the inner end cover (1) and the outer end cover (2), a bearing chamber (5) penetrating the inner end cover (1) and the outer end cover (2) is provided at the inner hole (4), a plurality of ribs (6) are fixedly connected to the outer end cover (2) and the inner end cover (1) at equal intervals in the circumferential direction, four flange connection nut blocks (7) are fixedly connected to the outer circumference of the inner end cover (1), and mutually aligned connection holes (8) are provided on the outer end cover (2) and the annular plate (3).

2. The motor flange end cover of the high-power steel plate stamping and welding structure according to claim 1 is characterized in that: The bearing chamber (5) is provided with three connecting parts (51) equidistantly along the circumferential direction, the connecting parts (51) are provided with threaded holes (52) penetrating therethrough, and the inner hole (4) is provided with notches (41) for the connecting parts (51) to pass through.

3. The motor flange end cover of the high-power steel plate stamping and welding structure according to claim 1 is characterized in that: The flange connection nut block (7) is provided with a mounting hole (71).

4. The motor flange end cover of the high-power steel plate stamping and welding structure according to claim 1 is characterized in that: A plurality of reinforcing ribs (9) are fixedly connected between the inner wall of the inner end cover (1) and the outer circumferential wall of the bearing chamber (5).

5. The motor flange end cover of the high-power steel plate stamping and welding structure according to claim 1 is characterized in that: The inner end cover (1), the outer end cover (2) and the annular plate (3) are all made by stamping and stretching steel plates.

6. The motor flange end cover of the high-power steel plate stamping and welding structure according to claim 1 is characterized in that: The bottom edge of the inner end cover (1) is provided with a rim (11).

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