Lightweight integrated steel plate stamping assembly welding type motor shell structure

Abstract

The utility model discloses a light-weight integrated steel plate stamping assembly welding type motor shell structure, which relates to the technical field of motors and comprises a horizontal machine base, a stamping flange end cover and a rear end cover are respectively arranged at the front end and the rear end of the horizontal machine base, the horizontal machine base comprises a cylinder body, and a plurality of pairs of radiating fins are arranged in the circumferential direction of the cylinder body. The stamping flange end cover comprises an inner cover, an outer cover, a web plate and a reinforcing plate, a rotating shaft rotationally connected with the stamping flange end cover and the rear end cover is arranged in the horizontal machine base, and the rear end of the rotating shaft is connected with an impeller. A traditional cast motor shell is split into a plurality of small parts, then automatic stamping is adopted, batch machining is carried out, the production efficiency is high, the weight is lower than that of a sand casting machine base, and the strength is higher than that of a common aluminum die casting machine base. The space between the barrel and the cooling fins is filled with the heat conduction filling glue, the heat conduction effect is improved under the condition that fixing of the cooling fins is not affected, airflow is driven by the impeller to dissipate heat of the cooling fins, and the heat dissipation effect is further enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, and particularly relates to a lightweight integrated steel plate stamping, assembling and welding type motor shell structure. Background Art

[0002] Most of the existing motor casings are divided into two categories. One category is the cast iron base and the front and rear end covers, and the other category is the aluminum die-cast base and end covers, or with cast iron end covers. Among them:

[0003] (1) Most of the cast iron bases and end covers are formed by sand casting or lost foam casting. In order to ensure that the molten iron can flow well to fill the sand cavity of the casting, the wall thickness of the casting is mostly relatively thick, the weight is heavy, the surface is rough, and the appearance is poor. The machining surfaces all need to go through multiple processes of turning, milling, and drilling to be completed, resulting in high machining costs and transportation costs.

[0004] (2) Although the aluminum die-cast base can significantly reduce the weight of the casing, relatively speaking, problems such as reduced strength and rigidity will also occur.

[0005] However, the present application adopts a steel plate stamping combination and welding structure, which can not only make up for the problem of insufficient rigidity of aluminum castings, but also reduce the weight and cost of cast iron parts, and can realize large-scale digital intelligent automatic and efficient production, meet the comprehensive performance and requirements of the motor, and can also achieve energy conservation and emission reduction and reduce energy consumption. After being formed by various processes, the steel plate structure parts have stronger rigidity, and multiple machining dimensions can achieve non-cutting or even less cutting machining. The lightweight integrated steel plate stamping, assembling and welding type motor shell structure can greatly reduce the manufacturing cost of the motor shell on the premise of meeting the functions and performance of the motor. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a lightweight integrated steel plate stamping, assembling and welding type motor shell structure to solve the above-mentioned defects in the prior art.

[0007] A lightweight integrated steel plate stamping, assembling and welding type motor shell structure includes a horizontal base. The front and rear ends of the horizontal base are respectively provided with a stamping flange end cover and a rear end cover, and the stamping flange end cover and the rear end cover are locked and fixed by a connecting rod and a hexagonal nut;

[0008] The horizontal base includes a cylinder body. A plurality of pairs of radiating fins are arranged on the circumferential direction of the cylinder body. A fixing seat is arranged between each pair of radiating fins and fixed on the outer wall of the cylinder body. A plurality of snap fasteners I are arranged on the left and right sides of the fixing seat. Fixing plates are symmetrically arranged on the left and right sides of each pair of radiating fins and fixed on the outer wall of the cylinder body. A plurality of snap fasteners II are fixedly connected to the fixing plates. The inner and outer edges of the radiating fins are respectively clamped in the snap fasteners I and the snap fasteners II;

[0009] The stamping flange end cover includes an inner cover, an outer cover, a web and a reinforcing plate. The outer cover is fixedly connected to the outside of the inner cover, and the inner cover and the outer cover are installed at the front end of the cylinder body. The web is fixedly connected to the front end of the inner cover, and the reinforcing plate is fixedly connected to the outside of the web.

[0010] Preferably, a rotating shaft rotatably connected to the stamping flange end cover and the rear end cover is provided in the horizontal machine base. The rear end of the rotating shaft is fixedly connected with an impeller through a plug. An air hood is arranged outside the impeller. The front end of the air hood is designed with an opening and there is a gap between the air hood and the rear end cover. A plurality of air inlet holes are arranged at the rear end of the air hood.

[0011] Preferably, bearing chambers are fixedly connected to the centers of the inner cover and the rear end cover, and the rotating shaft is rotatably connected to the bearing chambers through bearings.

[0012] Preferably, a sealing ring chamber is also fixedly connected to the center of the rear end cover.

[0013] Preferably, both the stamping flange end cover and the rear end cover are formed by stamping steel plates.

[0014] Preferably, nut blocks for the connecting rod to pass through are provided on both the rear end cover and the outer cover, and the air hood is fixedly connected to the nut blocks on the rear end cover.

[0015] Preferably, a heat-conducting filling adhesive is also filled between the heat sink and the cylinder body.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] 1. In this application, the traditional cast motor housing is disassembled into multiple small components, and then batch processing is carried out by automated production. The production efficiency is high, and most of them are steel plate stamping assemblies. Compared with sand-cast parts, they are lighter in weight, require less materials, have lower costs, and at the same time have lower transportation costs, and the strength is also much higher than that of ordinary aluminum die-castings.

[0018] 2. In this application, the heat sink is fixed to the cylinder body by snap-fastener one and snap-fastener two. Since it is indirectly fixed to the cylinder body, filling a heat-conducting filling adhesive between the cylinder body and the heat sink does not affect the fixing effect of the heat sink, thus avoiding gaps between the heat sink and the cylinder body, improving the heat-conducting effect, enhancing heat dissipation, reducing the mutual vibration and friction between the cylinder body and the heat sink, and adding an impeller at the rear end of the rotating shaft. When the rotating shaft works, the impeller can drive the air flow to dissipate heat from the heat sink, further enhancing the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the overall combination of the utility model.

[0020] Figure 2It is a schematic diagram of the overall explosion structure of the utility model.

[0021] Figure 3 It is a schematic diagram of the structure of the horizontal machine base as a whole from the front.

[0022] Figure 4 This is a partially enlarged structural diagram of the horizontal machine base.

[0023] Figure 5 It is a schematic diagram of the partial three-dimensional structure of the horizontal machine base.

[0024] Figure 6 This is a schematic diagram of the structure after the stamped flange end cover is cut open.

[0025] Figure 7 This is a schematic diagram of the structure after the rear end cover is cut open.

[0026] in:

[0027] 1. Horizontal machine base; 11. Cylinder; 12. Heat sink; 13. Fixed base; 14. Buckle 1; 15. Fixed plate; 16. Buckle 2; 17. Thermal conductive filling glue;

[0028] 2. Stamped flange end cover; 21. Inner cover; 22. Outer cover; 23. Web plate; 24. Reinforcement plate;

[0029] 3. Rear end cover; 4. Connecting rod; 41. Hexagonal nut; 5. Rotating shaft; 51. Plug; 6. Impeller; 61. Air cover; 7. Bearing chamber; 8. Sealing ring chamber; 9. Nut block. DETAILED DESCRIPTION

[0030] 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.

[0031] like Figures 1 to 7 As shown, a lightweight integrated steel plate stamping and welding type motor housing structure comprises a horizontal machine base 1, wherein the front and rear ends of the horizontal machine base 1 are respectively provided with a stamping flange end cover 2 and a rear end cover 3, wherein the stamping flange end cover 2 and the rear end cover 3 are locked and fixed by a connecting rod 4 and a hexagonal nut 41;

[0032] The horizontal machine base 1 includes a cylinder 11, and a plurality of pairs of heat sinks 12 are arranged around the cylinder 11. A fixing seat 13 is arranged between each pair of heat sinks 12 and fixed to the outer wall of the cylinder 11. A plurality of buckles 14 are arranged on the left and right sides of the fixing seat 13. A fixing plate 15 is symmetrically arranged on the left and right sides of each pair of heat sinks 12 and fixed to the outer wall of the cylinder 11. A plurality of buckles 16 are fixedly connected to the fixing plate 15. The inner and outer edges of the heat sink 12 are respectively snapped into the buckle 14 and the buckle 16.

[0033] The stamping flange end cover 2 includes an inner cover 21, an outer cover 22, a web 23 and a reinforcing plate 24. The outer side of the inner cover 21 is fixedly connected with the outer cover 22, and the inner cover 21 and the outer cover are installed at the front end of the cylinder body 11. The front end of the inner cover 21 is fixedly connected with the web 23, and the outer side of the web 23 is fixedly connected with the reinforcing plate 24.

[0034] In this embodiment, a rotating shaft 5 is provided in the horizontal machine base 1 and is rotationally connected with the stamping flange end cover 2 and the rear end cover 3. The rear end of the rotating shaft 5 is fixedly connected with an impeller 6 through a plug 51. An air hood 61 is arranged outside the impeller 6. The front end of the air hood 61 is designed with an opening and there is a gap between the air hood 61 and the rear end cover 3. A plurality of air inlet holes are arranged at the rear end of the air hood 61.

[0035] In this embodiment, bearing chambers 7 are fixedly connected to the centers of the inner cover 21 and the rear end cover 3 respectively. The rotating shaft 5 is rotationally connected with the bearing chambers 7 through bearings. By adding the above structure, the friction and wear during the rotation of the rotating shaft 5 can be reduced.

[0036] In this embodiment, a seal ring chamber 8 is also fixedly connected to the center of the rear end cover 3. By installing a seal ring in the seal ring chamber 8, even if the air inhaled by the impeller 6 contains sundries, the sundries can be blocked from entering the bearing chamber 7 of the rear end cover 3 and the interior of the motor housing through the seal ring.

[0037] In this embodiment, both the stamping flange end cover 2 and the rear end cover 3 are made by stamping steel plates. The traditional cast motor housing is split into multiple small components. After each component is manufactured by stamping, they are fixed by laser welding or resistance welding. While ensuring the strength, the weight is reduced, which is convenient for mass production.

[0038] In this embodiment, nut blocks 9 for the connecting rod 4 to pass through are provided on both the rear end cover 3 and the outer cover 22. The air hood 61 is fixedly connected to the nut block 9 on the rear end cover 3. Through the cooperation between the connecting rod 4 and the nut block 9, the stamping flange end cover 2 and the rear end cover 3 can be assembled to the front and rear ends of the horizontal machine base 1.

[0039] In this embodiment, a heat-conducting filling adhesive 17 is also filled between the heat sink 12 and the cylinder body 11. The heat-conducting filling adhesive 17 is used to fill the gap between the heat sink 12 and the cylinder body 11 to improve the heat-conducting ability.

[0040] In summary, in this application, the traditional cast motor housing is split into multiple small components, and then automated production is used for batch processing. The production efficiency is high, and most of them are steel plate stamping assemblies. Compared with sand-castings, they have a lower weight, require less materials, lower costs, and also lower transportation costs, and the strength is much higher than that of ordinary aluminum die-castings.

[0041] In addition, the heat sink 12 in the present application is fixed to the cylinder 11 by snap fastener one 14 and snap fastener two 16. Since it is indirectly fixed to the cylinder 11, filling the thermal conductive filling adhesive 17 between the cylinder 11 and the heat sink 12 does not affect the fixing effect of the heat sink 12, thus avoiding gaps between the heat sink 12 and the cylinder 11, improving the heat conduction effect, enhancing heat dissipation, reducing the mutual vibration friction between the cylinder 11 and the heat sink 12, and adding an impeller 6 at the rear end of the rotating shaft 5. When the rotating shaft 5 works, the impeller 6 can drive air flow to dissipate heat from the heat sink 12, further enhancing the heat dissipation effect.

[0042] Therefore, the above-disclosed embodiments are illustrative in all aspects and not exclusive. All changes within the scope of the present utility model or within the scope equivalent to the present utility model are encompassed by the present utility model.

Claims

1. A lightweight integrated steel plate stamping and welding type motor housing structure, comprising a horizontal machine base (1), characterized in that: The front and rear ends of the horizontal machine base (1) are respectively provided with a stamped flange end cover (2) and a rear end cover (3), and the stamped flange end cover (2) and the rear end cover (3) are locked and fixed by a connecting rod (4) and a hexagonal nut (41); The horizontal machine base (1) comprises a cylinder (11), a plurality of pairs of heat sinks (12) are arranged in the circumferential direction of the cylinder (11), a fixing seat (13) is arranged between each pair of heat sinks (12) and is fixed to the outer wall of the cylinder (11), a plurality of first clips (14) are arranged on the left and right sides of the fixing seat (13), a fixing plate (15) is symmetrically arranged on the left and right sides of each pair of heat sinks (12) and is fixed to the outer wall of the cylinder (11), a plurality of second clips (16) are fixedly connected to the fixing plate (15), and the inner and outer edges of the heat sink (12) are respectively clipped into the first clip (14) and the second clip (16); The stamped flange end cover (2) comprises an inner cover (21), an outer cover (22), a web (23) and a reinforcing plate (24); the outer side of the inner cover (21) is fixedly connected to the outer cover (22); the inner cover (21) and the outer cover are mounted on the front end of the cylinder (11); the front end of the inner cover (21) is fixedly connected to the web (23); and the outer side of the web (23) is fixedly connected to the reinforcing plate (24).

2. The lightweight integrated steel plate stamping and welding motor housing structure according to claim 1 is characterized in that: A rotating shaft (5) is provided in the horizontal machine base (1) and is rotatably connected to the stamped flange end cover (2) and the rear end cover (3). The rear end of the rotating shaft (5) is fixedly connected to an impeller (6) via a plug (51). An air hood (61) is provided on the outer side of the impeller (6). The front end of the air hood (61) is designed to be open, and a gap is left between the air hood (61) and the rear end cover (3). A plurality of air inlet holes are provided at the rear end of the air hood (61).

3. The lightweight integrated steel plate stamping and welding type motor housing structure according to claim 2 is characterized in that: The inner cover (21) and the rear end cover (3) are both fixedly connected to a bearing chamber (7) at their centers, and the rotating shaft (5) is rotatably connected to the bearing chamber (7) via a bearing.

4. The lightweight integrated steel plate stamping and welding type motor housing structure according to claim 1 is characterized in that: The center of the rear end cover (3) is also fixedly connected to a sealing ring chamber (8).

5. The lightweight integrated steel plate stamping and welding motor housing structure according to claim 1 is characterized in that: The stamped flange end cover (2) and the rear end cover (3) are both formed by stamping steel plates.

6. The lightweight integrated steel plate stamping and welding type motor housing structure according to claim 2 is characterized in that: The rear end cover (3) and the outer cover (22) are both provided with a nut block (9) for the connecting rod (4) to pass through, and the wind cover (61) is fixedly connected to the nut block (9) on the rear end cover (3).

7. The lightweight integrated steel plate stamping and welding motor housing structure according to claim 1 is characterized in that: A heat-conducting filling glue (17) is also filled between the heat sink (12) and the cylinder (11).

Images