Motor shell with high assembly precision

Abstract

The utility model relates to the field of motor casings, in particular to a motor casing with high assembly accuracy, a motor casing body is assembled at the top of a base, mounting columns are fixedly and vertically arranged upwards at corners of the top of the base, and fixing plates matched with the motor casing body are fixedly arranged on the base and positioned on the outer sides of the mounting columns; mounting holes are formed in the motor shell body corresponding to the mounting columns in a matched and penetrating mode, the mounting columns penetrate through the mounting holes, clamping cavities are formed in the mounting columns inwards, and clamping columns are rotationally arranged on the fixing plates corresponding to the clamping cavities in a matched mode. According to the utility model, the motor shell body can be fixedly assembled on the base through the clamping between the mounting column and the mounting hole and the clamping between the clamping column and the clamping cavity, and the assembling mode does not need bolts, so that the assembling process is more convenient, and the assembling precision is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of motor casings, in particular to a motor casing with high assembly precision. Background Art

[0002] The motor housing is the outer shell of a motor. It effectively protects the internal components of the motor from damage, contamination, and corrosion by external objects, thereby maintaining the stable operation of the motor's internal systems. To ensure the motor can maintain stable operation, the motor housing is usually assembled on the base.

[0003] Conventional motor housings on the market are often mounted to their bases using bolts. During assembly, the tightening torque of the bolts must be strictly controlled to avoid overtightening or undertightening, which can lead to assembly precision issues. This ensures a snug fit and sufficient tightening force. This assembly method is not only cumbersome but also reduces assembly precision due to improper control of the bolt tightening torque. Therefore, a motor housing that is simple to assemble and offers high assembly precision is urgently needed. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to provide a motor housing with high assembly precision.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A motor housing with high assembly precision comprises a base and a motor housing body, wherein the motor housing body is assembled on the top of the base, mounting columns are fixedly arranged vertically upward at the corners of the top of the base, and fixing plates adapted to the motor housing body are fixedly arranged on the outside of the mounting columns on the base; mounting holes are adapted to penetrate through the corresponding mounting columns on the motor housing body, the mounting columns pass through the mounting holes, a card cavity is provided inwardly on the mounting columns, and a card column is rotatably provided on the fixing plate corresponding to the card cavity.

[0007] In addition, a preferred structure is that a fixing column is fixedly provided vertically upward on the top of each fixing plate, and an anti-falling piece is fixedly provided on the top of each fixing column.

[0008] In addition, a preferred structure is that one end of the clamping column is penetrated by a through hole, the clamping column is rotatably sleeved on the fixed column through the through hole, and the other end of the clamping column is penetrated by a limited position cavity.

[0009] In addition, a preferred structure is that the top of each mounting post is provided with an eccentric spring cavity downwardly, and the bottom of the spring cavity is provided with a communication cavity downwardly connected to the card cavity.

[0010] In addition, the preferred structure is that a limit column is adapted to be vertically movable in the connecting cavity, the top of the limit column extends from the spring cavity and is fixedly connected to a pull plate, and the limit column is adapted to the limit cavity.

[0011] In addition, a preferred structure is that a spring is vertically installed upward in each of the spring cavities, and the other end of the spring is connected to the bottom of the pull plate.

[0012] The beneficial effect of the present invention is that the motor housing body can be fixedly assembled on the base by means of the clamping between the mounting column and the mounting hole, and in coordination with the clamping between the clamping column and the clamping cavity. This assembly method does not require the use of bolts, which not only makes the assembly process more convenient but also increases the assembly accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of a motor housing with high assembly precision proposed by the utility model;

[0014] Figure 2 for Figure 1 Schematic diagram of the structure of the motor housing body;

[0015] Figure 3 for Figure 1 A schematic diagram of the structure of the base;

[0016] Figure 4 for Figure 3 Schematic diagram of the structure of the mounting column and the fixing plate;

[0017] Figure 5 for Figure 4 Schematic diagram of explosion structure in ;

[0018] Figure 6 This is a schematic diagram of the structure of a mounting column for a motor housing with high assembly precision proposed by the present invention;

[0019] Figure 7 for Figure 6 Schematic diagram of the internal structure of the mounting column;

[0020] Figure 8 for Figure 7 Schematic diagram of the structure after the limit column and spring are hidden.

[0021] In the figure: 1 base, 11 mounting column, 111 card cavity, 112 spring cavity, 113 connecting cavity, 12 fixing plate, 121 fixing column, 122 anti-falling part, 13 card column, 131 through hole, 132 limiting cavity, 14 limiting column, 141 pull plate, 15 spring, 2 motor housing body, 21 mounting hole. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] Reference Figure 1-8 A motor housing with high assembly precision includes a base 1 and a motor housing body 2. The motor housing body 2 is assembled on the top of the base 1. Mounting posts 11 are fixed vertically upward at the corners of the top of the base 1, and fixing plates 12 adapted to the motor housing body 2 are fixed on the outside of the mounting posts 11 on the base 1. Mounting holes 21 are adapted to penetrate and open corresponding to the mounting posts 11 on the motor housing body 2. The mounting posts 11 pass through the mounting holes 21. A card cavity 111 is provided inwardly on the mounting posts 11, and a card column 13 is rotatably provided on the fixing plate 12 corresponding to the card cavity 111. It is worth noting that the specific structure of the motor housing body 2 and its working method are both existing technologies, so they will not be described in detail.

[0024] The top of each fixing plate 12 is fixedly and vertically mounted with a fixing post 121, and a retaining member 122 is fixedly mounted on the top of each fixing post 121. A through hole 131 is formed at one end of each clamping post 13, through which the clamping post 13 is rotatably mounted on the fixing post 121. A retaining cavity 132 is formed at the other end of each clamping post 13. The retaining member 122 prevents the clamping post 13 from falling off the fixing post 12, allowing the clamping post 13 to rotate stably around the fixing post 12.

[0025] The top of each mounting post 11 defines an eccentric spring cavity 112, and the bottom of each spring cavity 112 defines a connecting cavity 113, which communicates with the locking cavity 111. A vertically movable limit post 14 is adapted to fit within the connecting cavity 113. The top of each limit post 14 extends from the spring cavity 112 and is fixedly connected to a pull plate 141. Each limit post 14 mates with a limit cavity 132. The interlocking arrangement between the limit post 14 and the limit cavity 132 secures the locking post 13 within the locking cavity 111.

[0026] Among them, springs 15 are vertically installed upward in the spring chamber 112, and the other ends of the springs 15 are connected to the bottom of the pull plate 141. Through the arrangement of the springs 15, the pull plate 141 can be pulled downward stably, so that the limiting column 14 can move stably into the card chamber 111.

[0027] In this embodiment, when the user needs to install the motor housing body 2 on the base 1, they only need to align the mounting holes 21 on the motor housing body 2 with the mounting posts 11 on the base 1. Then, the motor housing body 2 is moved downward so that the mounting posts 11 can be inserted into the mounting holes 21. At this time, the fixing plates 12 on the base 1 are automatically located at the corners of the motor housing body 2, thereby further improving the installation accuracy of the motor housing body 2 on the base 1.

[0028] Furthermore, when all mounting posts 11 are inserted into mounting holes 21, the cavities 111 at the tops of the posts 11 extend out from the tops of the mounting holes 21. At this point, the user can pull the pull plate 141 upward, causing the spring 15 to stretch and the limiting posts 14 to move upward and out of the cavities 111. The user can then rotate the posts 13 around the fixing posts 121. When the posts 13 rotate into the cavities 111, the limiting cavities 132 on the posts 13 align with the connecting cavities 113. The user then simply releases the pull plate 141, and the limiting posts 14 automatically move downward and reset due to the elastic force of the springs 15, allowing them to automatically insert into the limiting cavities 132 on the posts 13, thereby securing the posts 13 within the cavities 111. When all four posts 13 are secured within the cavities 111, the base 1 and the motor housing 2 are securely mounted.

[0029] Furthermore, when the user needs to remove the motor housing body 2 from the base 1, they simply pull the pull plate 141 upward again, causing the retaining post 14 to move upward and release the retaining cavity 132 on the retaining post 13. The user can then control the retaining post 13 to rotate about the fixed post 121, thereby releasing the retaining post 13 from the retaining cavity 111. Once the four retaining posts 13 are released from the retaining cavity 111, the motor housing body 2 can be directly pulled upward to remove the base 1 from the motor housing body 2.

[0030] In the present invention, the motor housing body 2 can be fixedly assembled on the base 1 by means of the clamping between the mounting column 11 and the mounting hole 21, and in coordination with the clamping between the clamping column 13 and the clamping cavity 111. This assembly method does not require the use of bolts, which not only makes the assembly process more convenient but also increases the assembly accuracy.

[0031] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A motor housing with high assembly precision, comprising a base (1) and a motor housing body (2), characterized in that: The motor housing body (2) is assembled on the top of the base (1), and mounting columns (11) are fixedly arranged vertically upward at the corners of the top of the base (1), and fixing plates (12) adapted to the motor housing body (2) are fixedly arranged on the outside of the mounting columns (11) on the base (1); The motor housing body (2) is provided with mounting holes (21) corresponding to the mounting posts (11), and the mounting posts (11) pass through the mounting holes (21). The mounting posts (11) are provided with inwardly-opened clamping cavities (111), and the fixing plates (12) are provided with clamping posts (13) corresponding to the clamping cavities (111) and rotatably arranged thereon.

2. A motor housing with high assembly precision according to claim 1, characterized in that: A fixing column (121) is fixedly and vertically arranged on the top of each fixing plate (12), and an anti-falling piece (122) is fixedly arranged on the top of each fixing column (121).

3. The motor housing with high assembly precision according to claim 2, characterized in that: One end of the clamping column (13) is penetrated by a through hole (131), the clamping column (13) is rotatably sleeved on the fixed column (121) through the through hole (131), and the other end of the clamping column (13) is penetrated by a limiting cavity (132).

4. The motor housing with high assembly precision according to claim 3, characterized in that: The top of each mounting column (11) is provided with an eccentric spring cavity (112) downwardly, and the bottom of each spring cavity (112) is provided with a communication cavity (113) communicating with the card cavity (111) downwardly.

5. The motor housing with high assembly precision according to claim 4, characterized in that: A limiting column (14) is adapted to be vertically movable in the communicating cavity (113), the tops of the limiting columns (14) are extended from the spring cavity (112) and are fixedly connected with a pull plate (141), and the limiting columns (14) are adapted to the limiting cavity (132).

6. The motor housing with high assembly precision according to claim 5, characterized in that: A spring (15) is vertically installed upward in each of the spring cavities (112), and the other end of the spring (15) is connected to the bottom of the pull plate (141).

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