Combined motor rear end cover

Abstract

The utility model discloses a combined motor rear end cover, which relates to the technical field of motors, and comprises an end cover plate, a bearing chamber, a sealing ring chamber and a mounting block, the edge of the end cover plate is provided with a circle of rim, the center of the end cover plate is provided with a circular combination opening, the bearing chamber is coaxially fixed at the combination opening, and the mounting block is arranged on the bearing chamber. The sealing ring chamber is coaxially fixed in the bearing chamber, the plurality of mounting blocks are uniformly fixed on the outer side of the end cover plate, and a mounting hole is formed in the center of each mounting block. According to the utility model, the traditional cast motor end cover is split into a plurality of small parts for mass processing, the processing period is short, the weight is light, and the energy conservation and consumption reduction are obvious. The end cover plate is integrally formed by stamping, and the bearing chamber and the sealing ring chamber are integrally formed by forging and pressing and then are welded through an automatic assembly line, so that the problems of low product precision and long processing period can be avoided. And moreover, the machining allowance of the part subjected to punch forming and forging forming is small, and the manufacturing cost is lower.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a combined motor rear end cover. Background Art

[0002] The motor end cover is a fixed part used to connect the motor housing and other transmission components.

[0003] 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 through rough and fine secondary machining. The processing cycle is long, and the castings have high energy consumption, which makes it difficult to meet the requirements of industrial automation mass production and energy conservation and emission reduction.

[0004] In addition, some of the motor end covers produced by our company previously had relatively complex structures, so we designed and produced a new motor rear end cover. Utility Model Content

[0005] The purpose of the utility model is to provide a combined motor rear end cover to solve the above-mentioned defects caused by the prior art.

[0006] A combined motor rear end cover comprises an end cover plate, a bearing chamber sealing ring chamber and a mounting block, wherein a rim is arranged at the edge of the end cover plate, a circular combination opening is arranged at the center of the end cover plate, the bearing chamber is coaxially fixed at the combination opening, the sealing ring chamber is coaxially fixed in the bearing chamber, a plurality of mounting blocks are arranged and evenly fixed on the outer side of the end cover plate, and a mounting hole is arranged in the center of each mounting block.

[0007] Preferably, semicircular positioning openings are evenly distributed on the edge of the combined opening, and semi-cylindrical connecting parts are evenly distributed on the outer side of the bearing chamber. The connecting parts are fixed at the positioning openings, and a connecting hole is centrally provided on each connecting part.

[0008] Preferably, a plurality of reinforcing ribs 1 are uniformly welded between the end cover plate and the bearing chamber, and a reinforcing rib 2 is welded between the end cover plate and each connecting portion.

[0009] Preferably, the end cover plate is made of steel plate by stamping and stretching.

[0010] Preferably, the bearing chamber and the sealing ring chamber are both forged from steel ingots in one piece.

[0011] The first reinforcing rib and the second reinforcing rib are both made by integrally stamping a steel plate.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] 1. In order to realize mass production of industrial automation, the traditional cast motor end cover is split into multiple small parts for mass processing, which has a short processing cycle, light weight, and significant energy saving and consumption reduction.

[0014] 2. The end cover, rib 1 and rib 2 are all formed by integral stamping, and the bearing chamber and seal ring chamber are all formed by integral forging, and then welded through an automated assembly line, which can avoid the problems of low product precision and long processing cycle. In addition, the processing allowance of parts after stamping and forging is small, and the manufacturing cost is lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the overall inner side of the utility model.

[0016] Figure 2 It is a schematic structural diagram of the overall outer side of the utility model.

[0017] Figure 3 It is a structural schematic diagram of the end cover plate in the utility model.

[0018] Figure 4 It is a structural schematic diagram of the bearing chamber in the utility model.

[0019] in:

[0020] 10-end cover plate; 10a-combination opening; 10b-positioning opening; 11-wheel rim;

[0021] 20-bearing chamber; 21-connecting portion; 21a-connecting hole;

[0022] 30-seal ring chamber;

[0023] 40-Reinforcement rib 1;

[0024] 50-Reinforcement rib 2;

[0025] 60-mounting block; 60a-mounting hole. DETAILED DESCRIPTION

[0026] 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.

[0027] like Figures 1 to 4As shown, a combined motor rear end cover includes an end cover plate 10, a bearing chamber 20, a sealing ring chamber 30 and a mounting block 60. A rim 11 is provided at the edge of the end cover plate 10. The annular groove formed between the rim 11 and the end cover plate 10 is used to place the sealing ring. A circular combination opening 10a is provided at the center of the end cover plate 10. The combination hole 10a has a small amount of lathing or grinding allowance. The bearing chamber 20 is coaxially fixed at the combination opening 10a. The sealing ring chamber 30 is coaxially fixed in the bearing chamber 20. The mounting blocks 60 are provided with a plurality of mounting blocks 60 and are evenly fixed on the outer side of the end cover plate 10. Each mounting block 60 is centrally provided with a mounting hole 60a. The mounting hole 60a is used to mount the rear end cover to the motor base by screws. The end cover plate 10 with the rim 11 is made of high-strength steel plate through the steps of blanking, pressing, shaping and finally spinning.

[0028] In this embodiment, semicircular positioning openings 10b are evenly distributed on the edge of the combination opening 10a, and semi-cylindrical connecting parts 21 are evenly distributed on the outside of the bearing chamber 20. The connecting parts 21 are fixed correspondingly at the positioning openings 10b, and each connecting part 21 is centrally provided with a connecting hole 21a.

[0029] In this embodiment, a plurality of reinforcing ribs 1 40 are uniformly welded between the end cover plate 10 and the bearing chamber 20, and reinforcing ribs 2 50 are welded between the end cover plate 10 and each connecting portion 21. The reinforcing ribs 1 40 and 2 50 can improve the connection strength between the end cover plate 10 and the bearing chamber 20, and also improve the overall rigidity of the end cover.

[0030] In this embodiment, the end cover plate 10 is made by stamping and stretching a steel plate, so that the machining allowance of the parts after stamping is small and the manufacturing cost is lower.

[0031] In this embodiment, the bearing chamber 20 and the sealing ring chamber 30 are both forged from steel ingots, so that the machining allowance of the parts after forging is small and the manufacturing cost is lower.

[0032] In this embodiment, the first reinforcing rib 40 and the second reinforcing rib 50 are both made of steel plates by integral stamping, so that the machining allowance of the parts after stamping is small and the manufacturing cost is lower.

[0033] The welding process of the rear end cover of this combined motor is as follows:

[0034] S1: The end cover plate 10 is positioned and fixed, and then the bearing chamber 20 is pressed into the combination opening 10a of the end cover plate 10, and the bearing chamber 20 is clamped by a corresponding positioning fixture, and then the bearing chamber 20 and the end cover plate 10 are welded together by gas shielded welding;

[0035] S2: Using gas shielded welding to weld the reinforcing rib 1 40 and the reinforcing rib 2 50 between the end cover plate 10 and the bearing chamber 20;

[0036] S3: Turn over the end cover plate 10, press the sealing ring chamber 30 into the bearing chamber 20, and clamp the sealing ring chamber 30 with a corresponding positioning fixture, and then weld the sealing ring chamber 30 and the bearing chamber 20 together by gas shielded welding;

[0037] S4: Clamp the mounting block 60 with a corresponding positioning fixture, and then weld the mounting block 60 and the end cover plate 10 together by using gas shielded welding.

[0038] Therefore, the embodiments disclosed above are only illustrative in all aspects 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 combined motor rear end cover, characterized in that: The invention comprises an end cover plate (10), a bearing chamber (20), a sealing ring chamber (30) and a mounting block (60); the edge of the end cover plate (10) is provided with a rim (11); the center of the end cover plate (10) is provided with a circular combination opening (10a); the bearing chamber (20) is coaxially fixed at the combination opening (10a); the sealing ring chamber (30) is coaxially fixed in the bearing chamber (20); a plurality of mounting blocks (60) are provided and evenly fixed on the outer side of the end cover plate (10); and each mounting block (60) is provided with a mounting hole (60a) in the center.

2. The combined motor rear end cover according to claim 1, characterized in that: Semicircular positioning openings (10b) are evenly distributed at the edge of the combined opening (10a), and semi-cylindrical connecting parts (21) are evenly distributed on the outside of the bearing chamber (20). The connecting parts (21) are fixed to the positioning openings (10b) respectively, and a connecting hole (21a) is centrally provided on each connecting part (21).

3. The combined motor rear end cover according to claim 2, characterized in that: A plurality of reinforcing ribs one (40) are uniformly welded between the end cover plate (10) and the bearing chamber (20), and a reinforcing rib two (50) is welded between the end cover plate (10) and each connecting portion (21).

4. The combined motor rear end cover according to claim 1, characterized in that: The end cover plate (10) is made by stamping and stretching a steel plate.

5. The combined motor rear end cover according to claim 1, characterized in that: The bearing chamber (20) and the sealing ring chamber (30) are both integrally forged from steel ingots.

6. The combined motor rear end cover according to claim 3, characterized in that: The reinforcing rib 1 (40) and the reinforcing rib 2 (50) are both integrally stamped from steel plates.

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