Motor housing

Abstract

The utility model discloses a motor housing, which comprises a front shaft plate and a main housing arranged on one side of the front shaft plate, two symmetrical hollow cylindrical shells are integrally formed on the outer wall of one side, close to the main housing, of the front shaft plate, and a front end cover is integrally formed between the two hollow cylindrical shells. A first shaft hole and a second shaft hole which are concentric with the two hollow cylindrical shells are formed in the outer wall of the side, away from the front end cover, of the front shaft plate, the main shell and the front end cover are in bolted connection, and a tail cover is fixed to the end, away from the front end cover, of the main shell in a bolted connection mode. The motor is used in the design of a motor needing two rotating shafts arranged in the same direction, the two symmetrical shaft holes are formed in the front shaft plate, the hollow cylindrical shell allowing the rotating shafts to penetrate through is arranged between the front shaft plate and the front end cover, and the two symmetrical shaft holes are formed in the front shaft plate, so that sufficient installation space can be effectively provided for the two rotating shafts; and complicated space change is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor accessories technical field, concretely is a motor casing. BACKGROUND

[0002] The motor casing is an important external structural part of the motor, has multiple functions, guarantees the normal operation of the motor. First, it provides physical protection against external environmental factors such as dust, moisture and chemicals from damaging the internal components of the motor. Secondly, the motor casing carries various components of the motor, such as the rotor, stator, bearing, etc., provides mechanical support, ensures the stability and life of the motor, the structure of the motor casing is usually composed of a shell, an end cover, a ventilation hole, a bearing seat and a sealing structure. The shell is generally made of cast iron or aluminum alloy material, the end cover closes the inside of the motor and supports the rotating shaft, the ventilation hole helps to dissipate heat, the bearing seat supports the stable rotation of the rotating shaft, and the sealing structure prevents external pollutants from entering. When designing, the casing needs to consider factors such as load capacity, heat dissipation effect, protection performance and vibration control to ensure the efficiency, safety and stability of the motor under high load and long time operation;

[0003] As disclosed in the authorized announcement No. CN222282908U, a motor casing structure, comprising: an outer shell body, an upper cover and a lower cover respectively arranged at the two end openings of the outer shell body, a plurality of clamping groove positioning structures A are formed at the two end openings of the outer shell body to determine the same center, and a clamping positioning structure B / C is formed on the upper cover / lower cover to be clamped and positioned with the clamping groove positioning structure A; the two ends of the clamping positioning structure B / C are formed with an inclined buckle; each clamping groove positioning structure A is formed with an avoidance slot from the upper end face to form a riveting column on both sides of the clamping groove positioning structure A; the inclined buckle is formed on each of the upper cover / lower cover, and the avoidance slot is formed at both ends of the outer shell body to form a riveting column on both sides of the clamping groove positioning structure A, after riveting, each riveting column is in full contact with the inclined surface of each inclined buckle, so that after the product is riveted, the upper cover of the product is stressed, and the pressure is perpendicular to the lower cover. However, the casing structure in the above technical solution is similar to the casing in the prior art, which only provides a shaft hole for the arrangement of a rotating shaft, and cannot meet the use requirements when two rotating shafts in the same direction are required. In addition, two shaft holes are provided on the same end cover to support two rotating shafts, the overall strength and rigidity of the end cover will be greatly reduced. At this time, due to the high support requirement of the rotating shaft on the end cover, when two rotating shafts share one end cover, the stress on the end cover will be uneven, causing local stress concentration, which will cause deformation, fracture and other problems of the end cover, affecting the stability and safety of the motor. SUMMARY

[0004] The purpose of this utility model is to provide a motor housing with two symmetrical shaft holes on the front axle plate and a hollow cylindrical shell for the rotating shaft to pass through between the front axle plate and the front end cover, so that the housing meets the requirement of arranging two rotating shafts in the same direction, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a motor housing, comprising a front axle plate and a main housing disposed on one side of the front axle plate, wherein two symmetrical hollow cylindrical shells are integrally formed on the outer wall of the front axle plate near the main housing, and a front end cover is integrally formed between the two hollow cylindrical shells; a first shaft hole and a second shaft hole concentric with the two hollow cylindrical shells are disposed on the outer wall of the front axle plate away from the front end cover; the main housing and the front end cover are bolted together; and a tail cover is bolted to the end of the main housing away from the front end cover.

[0006] Preferably, two symmetrical hollow protrusions are provided on the outer wall of the front axle plate away from the front end cover. The two hollow protrusions are concentric with the first shaft hole and the second shaft hole, respectively, and reinforcing ribs are provided on the outer walls of the hollow protrusions.

[0007] Preferably, a long bolt is installed at the outer edge of the tail cap on the side away from the main housing, and the threaded end of the long bolt extends into the interior of the main housing.

[0008] Preferably, the front cover has a first groove inside, and the upper and lower sides inside the front cover have a second groove and a third groove that are connected and communicate with the first groove, respectively.

[0009] Preferably, a main recessed cavity is provided on one side inner wall of the front cover, and a lug is integrally formed on the arc-shaped outer wall of the front cover. The lug has an internal threaded hole, and the front cover is connected to one side outer wall of the main housing through the lug and the positioning bolt.

[0010] Preferably, two symmetrical main connecting columns are integrally formed on one side of the outer wall of the front axle plate. The outer wall of one side of the main connecting column is welded to the outer wall of one side of the front end cover. A secondary connecting column concentric with the main connecting column is provided on one side of the outer wall of the main housing.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This motor housing is used in motor designs that require two co-directional rotating shafts. Two symmetrical shaft holes are provided on the front axle plate, and a hollow cylindrical shell for the rotating shafts to pass through is provided between the front axle plate and the front end cover. By providing two symmetrical shaft holes on the front axle plate, sufficient installation space can be effectively provided for the two rotating shafts, avoiding complex spatial modifications. This design makes the housing structure more rational, fully utilizing limited space and avoiding unnecessary space waste. Furthermore, the hollow cylindrical shell and the rational design of the front axle plate ensure that the support points of the rotating shafts are evenly distributed, enhancing the rigidity and stability of the housing and effectively dispersing the pressure generated by the rotating shafts, making the overall structure more stable under load. Moreover, the front axle plate, hollow cylindrical shell, front end cover, main housing, and tail cover form a complete housing structure. This housing structure more effectively incorporates sealing elements, ensuring that the internal environment of the motor is not affected by external pollution such as dust and moisture, enabling the motor to operate stably in harsher environments. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0013] Figure 2 This is a side view of the structure of this utility model;

[0014] Figure 3 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 4 This is a three-dimensional structural diagram of the front cover of this utility model;

[0016] Figure 5 This is a three-dimensional cross-sectional structural diagram of the present invention.

[0017] In the diagram: 1. Front axle plate; 101. First shaft hole; 102. Second shaft hole; 103. Main connecting post; 2. Main housing; 201. Secondary connecting post; 3. Tail cover; 4. Front cover; 401. First groove; 402. Main cavity; 403. Second groove; 404. Third groove; 405. Lug; 5. Hollow cylindrical shell; 6. Long bolt. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0019] Please see Figures 1-5An embodiment of this utility model provides: a motor housing, including a front axle plate 1 and a main housing 2 disposed on one side of the front axle plate 1. Two symmetrical hollow cylindrical shells 5 are integrally formed on the outer wall of the front axle plate 1 near the main housing 2. A front end cover 4 is integrally formed between the two hollow cylindrical shells 5. A first shaft hole 101 and a second shaft hole 102 concentric with the two hollow cylindrical shells 5 are disposed on the outer wall of the front axle plate 1 away from the front end cover 4. The main housing 2 and the front end cover 4 are bolted to each other. A tail cover 3 is bolted to the end of the main housing 2 away from the front end cover 4.

[0020] Two symmetrical hollow protrusions are provided on the outer wall of the front axle plate 1 away from the front end cover 4. The two hollow protrusions are concentric with the first shaft hole 101 and the second shaft hole 102 respectively. Reinforcing ribs are provided on the outer walls of the hollow protrusions. When the shaft passes through the first shaft hole 101 and the second shaft hole 102 into the hollow cylindrical shell 5, the end of the shaft will enter the interior of the front end cover 4. At this time, the shaft and the hollow cylindrical shell 5 are in a coaxial state.

[0021] A long bolt 6 is installed on the outer edge of the tail cover 3 away from the main housing 2. The threaded end of the long bolt 6 extends into the interior of the main housing 2. The tail cover 3 prevents external substances from entering the motor at the tail end of the main housing 2, protects the rear structure of the motor from damage, and further plays a sealing role.

[0022] The front cover 4 has a first groove 401 inside. The upper and lower sides of the front cover 4 are respectively provided with a second groove 403 and a third groove 404 that are connected and communicate with the first groove 401. A main cavity 402 is provided on one inner wall of the front cover 4. When the rotating shaft enters the front cover 4, the two rotating shafts can be connected to the motor output shaft installed in the main cavity 402 through gears. The main cavity 402 is for the assembly of the driving gear, so that the motor housing can achieve the purpose of transmitting power in the same direction with two shafts. The second groove 403 and the third groove 404 are for the embedding and installation of the driven gear.

[0023] The front cover 4 has an integrally formed lug 405 on its arc-shaped outer wall. The lug 405 has an internal threaded hole. The front cover 4 is connected to one side of the outer wall of the main housing 2 through the lug 405 and the positioning bolt.

[0024] When the front cover 4 is fitted to the main housing 2, the lug 405 contacts the end plane of the main housing 2. At this time, the front cover 4 and the main housing 2 can effectively protect the internal components of the motor and prevent dust, dirt or other external substances from entering the motor and affecting the operation of the motor.

[0025] Two symmetrical main connecting columns 103 are integrally formed on one side of the outer wall of the front axle plate 1. The outer wall of one side of the main connecting column 103 is welded to the outer wall of one side of the front cover 4. A secondary connecting column 201 concentric with the main connecting column 103 is provided on one side of the outer wall of the main housing 2. Two main connecting columns 103 are provided on the outer wall of the front axle plate 1 near the main housing 2. The main connecting column 103 and the secondary connecting column 201 are in a concentric state. The positioning bolt can connect the main connecting column 103 and the secondary connecting column 201, so that the front axle plate 1 and the main housing 2 can be connected. This provides a more stable rear support for the motor and ensures that the overall structure of the motor is more robust.

[0026] In this embodiment, two shafts are first arranged through the first shaft hole 101 and the second shaft hole 102 on the front axle plate 1. Then, the ends of the shafts pass through the hollow cylindrical shell 5 and the front end cover 4 in sequence and enter the main housing 2. At this time, it is necessary to ensure that the connecting hole on the hollow cylindrical shell 5 is aligned with the mounting hole on the front end cover 4, and the operator also needs to check whether there are gaps between them to ensure that there is no risk of air or oil leakage after installation. After the front axle plate 1, hollow cylindrical shell 5, front end cover 4 and main housing 2 are assembled, the tail cover 3 is assembled to the tail end of the main housing 2, and the main housing 2 and tail cover 3 are bolted and fixed using long bolts 6. During this process, the connection between the tail cover 3 and the main housing 2 can use sealing rings or other sealing materials to ensure that there are no problems such as oil or air leakage when the motor is working. After the tail cover 3 is installed, the motor housing needs to be inspected as a whole to ensure that there is no looseness or abnormality. After all the components are assembled, the operator conducts an overall structural inspection of the motor housing, focusing on ensuring that all connecting parts are not loose and the motor housing is not deformed.

Claims

1. A motor housing, characterized in that: The device includes a front axle plate (1) and a main housing (2) disposed on one side of the front axle plate (1). Two symmetrical hollow cylindrical shells (5) are integrally formed on the outer wall of the front axle plate (1) near the main housing (2). A front end cover (4) is integrally formed between the two hollow cylindrical shells (5). A first shaft hole (101) and a second shaft hole (102) concentric with the two hollow cylindrical shells (5) are provided on the outer wall of the front axle plate (1) away from the front end cover (4). The main housing (2) and the front end cover (4) are bolted together. A tail cover (3) is bolted to the end of the main housing (2) away from the front end cover (4).

2. The motor housing according to claim 1, characterized in that: Two symmetrical hollow protrusions are provided on the outer wall of the front axle plate (1) away from the front end cover (4). The two hollow protrusions are concentric with the first shaft hole (101) and the second shaft hole (102) respectively. Reinforcing ribs are provided on the outer walls of the hollow protrusions.

3. The motor housing according to claim 1, characterized in that: A long bolt (6) is installed on the outer edge of the tail cap (3) away from the main housing (2), and the threaded end of the long bolt (6) extends into the interior of the main housing (2).

4. The motor housing according to claim 1, characterized in that: The front cover (4) has a first groove (401) inside, and the upper and lower sides of the front cover (4) are respectively provided with a second groove (403) and a third groove (404) that are connected and communicate with the first groove (401).

5. A motor housing according to claim 4, characterized in that: A main cavity (402) is provided on one side inner wall of the front cover (4), and a lug (405) is integrally formed on the arc-shaped outer wall of the front cover (4). An internal thread hole is provided inside the lug (405), and the front cover (4) is connected to one side outer wall of the main housing (2) through the lug (405) and the positioning bolt.

6. A motor housing according to claim 5, characterized in that: Two symmetrical main connecting columns (103) are integrally formed on one side of the outer wall of the front axle plate (1). The outer wall of one side of the main connecting column (103) is welded to the outer wall of one side of the front end cover (4). A secondary connecting column (201) concentric with the main connecting column (103) is provided on one side of the outer wall of the main housing (2).

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