Motor end cover assembly

Abstract

The utility model relates to the technical field of motors, and discloses a motor end cover assembly which comprises an end cover body, a placement groove is formed in the middle of the end cover body, a bearing is fixedly connected into the placement groove, a through hole is formed in the middle of the placement groove, a limiting ring is fixedly connected to the middle of the inner side of the end cover body, and a plurality of limiting protruding blocks are fixedly connected to the inner side of the limiting ring. The side wall of the limiting ring is in threaded connection with four second bolts, and four magnetic blocks are arranged on the inner side of the end cover body. Through the arrangement of the second bolts, the bearing can penetrate through the top of the limiting protruding block, the bearing continues to be extruded into the limiting ring, the bearing can be stably fixed, the four second bolts are rotated towards the middle, the bearing is blocked and fixed, the bearing is kept horizontal, the magnetic block can absorb metal powder and scrap iron generated by long-time work of the motor, and the bearing is prevented from being damaged. The effects of stably and horizontally fixing the bearing and preventing short circuit of the motor are achieved.

Description

Technical Field

[0001] The present application relates to the field of motor technology, and in particular to a motor end cover assembly. Background Art

[0002] The end cover assembly of the motor mainly includes electrical components such as the end cover and the bearing. When fixing the bearing of the motor end cover, the bearing is usually directly pressed into the center hole of the rear end cover of the motor, and the inner wall of the center hole abuts against the outer ring of the bearing to achieve a tight fit of the bearing.

[0003] The motor end cover assembly in the prior art has the following disadvantages: the bearing is difficult to install and is easy to loosen, resulting in unstable motor operation; the motor end cover is not installed tightly, resulting in water or dust entering the motor, affecting the normal operation of the motor, and there is a large room for improvement;

[0004] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0005] In order to solve the above-mentioned problems, the present application provides a motor end cover assembly.

[0006] The motor end cover assembly provided in this application adopts the following technical solution:

[0007] A motor end cover assembly includes an end cover body, a placement groove is opened in the middle of the end cover body, a bearing is fixedly connected inside the placement groove, a through hole is opened in the middle of the placement groove, a limit ring is fixedly connected to the middle of the inner side of the end cover body, a plurality of limit protrusions are fixedly connected to the inner side of the limit ring, four bolts are threadedly connected to the side wall of the limit ring, and four magnetic blocks are arranged on the inner side of the end cover body.

[0008] Preferably, four reinforcing ribs are evenly and fixedly connected to the inner side of the end cover body, four grooves are formed between the four reinforcing ribs and the inner side and side wall of the end cover body, and the four magnetic blocks are fixedly connected to the four grooves respectively.

[0009] Preferably, four fixing ears are fixedly connected to the outer surface of the end cover body, and the four fixing ears are all threadedly connected with bolt 1.

[0010] Preferably, a large sealing ring is fixedly connected to the outer ring inside the end cover body, and a small sealing ring is embedded in the outer side wall of the through hole.

[0011] Preferably, the outer surface of one end of the second bolt is smooth, and the outer surfaces of the middle portion and the other end of the second bolt are provided with threads.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] 1. By setting bolt 2, the bearing can be passed through the top of the limiting protrusion, the limiting protrusion can be squeezed outward, and the bearing can be squeezed into the limiting ring to stably fix the bearing. The output end of the motor can be passed through the middle of the bearing and fixed, and then the output end of the motor can be passed through the through hole, and the four bolts 2 can be rotated toward the middle, so that one end of the four bolts 2 exceeds the outer ring of the bearing, which has a blocking and fixing effect on the bearing. The bottom of the four bolts 2 is close to one side of the bearing. Once the bearing is tilted, one of the four bolts 2 will be unable to be screwed in. This can ensure that the bearing is placed horizontally, prevent the bearing from being tilted and fixed, and subsequently cause damage to the output end of the motor; compared with the existing technology, it has the effect of stably and horizontally fixing the bearing;

[0014] 2. By setting up magnetic blocks, four magnetic blocks are set on the inside of the end cover body. The magnetic blocks can absorb metal powder and iron filings generated by the long-term operation of the motor to prevent the metal powder and iron filings from causing a short circuit in the motor; compared with the existing technology, it has the effect of absorbing iron filings and preventing the motor from short circuiting. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall inner structure of the embodiment of the application;

[0016] Figure 2 It is a schematic diagram of the overall outer structure of the embodiment of the application;

[0017] Figure 3 is a schematic structural diagram of a magnetic block according to an embodiment of the application;

[0018] Figure 4 It is a schematic diagram of the structure of the limiting protrusion of the application embodiment.

[0019] Explanation of the accompanying drawings: 1. end cover body; 2. fixing ear; 3. bolt one; 4. large sealing ring; 5. reinforcing rib; 6. placement groove; 7. through hole; 8. small sealing ring; 9. limiting ring; 10. limiting protrusion; 11. bearing; 12. bolt two; 13. magnetic block. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1-4 This application is described in further detail.

[0021] The present application embodiment discloses a motor end cover assembly, referring to Figure 1-Figure 4, including an end cover body 1, a placement groove 6 is opened in the middle of the end cover body 1, a bearing 11 is fixedly connected inside the placement groove 6, the placement groove 6 fixes the bearing 11, a through hole 7 is opened in the middle of the placement groove 6, the output end of the motor can be passed through the middle of the bearing 11 and fixed, and then the output end of the motor is passed through the through hole 7 for subsequent use, a limiting ring 9 is fixedly connected to the middle of the inner side of the end cover body 1, and a plurality of limiting protrusions 10 are fixedly connected to the inner side of the limiting ring 9, the inner side of the limiting ring 9 is parallel to the inner side of the placement groove 6, and is used to fix the bearing 11, the top of the limiting protrusion 10 is inclined, and plays a guiding role for the bearing 11, and the limiting protrusion 10 is elastic, the bearing 11 passes through the top of the limiting protrusion 10, and the limiting protrusion 10 is squeezed outward to continue to hold the bearing The bearing 11 is squeezed into the limiting ring 9 to stably fix the bearing 11. The side wall of the limiting ring 9 is threadedly connected with four bolts 12. The four bolts 12 are rotated toward the middle so that one end of the four bolts 12 exceeds the outer ring of the bearing 11, thereby blocking and fixing the bearing 11. The bottoms of the four bolts 12 are close to one side of the bearing 11. Once the bearing 11 is tilted, one of the four bolts 12 will not be able to be threaded in. This ensures that the bearing 11 is placed horizontally to prevent the bearing 11 from being tilted and fixed, which may cause damage to the output end of the motor. Four magnetic blocks 13 are arranged on the inner side of the end cover body 1. The magnetic blocks 13 can absorb metal powder and iron filings generated by the motor when it works for a long time to prevent the metal powder and iron filings from causing a short circuit in the motor.

[0022] Reference Figure 1 and Figure 3 Four reinforcing ribs 5 are evenly and fixedly connected to the inner side of the end cover body 1. The reinforcing ribs 5 can provide lateral support for the end cover body 1, thereby enhancing the structural strength of the end cover body 1 and preventing it from deforming easily. Four grooves are formed between the four reinforcing ribs 5 and the inner side and side wall of the end cover body 1. Four magnetic blocks 13 are respectively fixedly connected to the four grooves, thereby stably fixing the four magnetic blocks 13, and the magnetic blocks 13 can provide support for the end cover body 1.

[0023] Reference Figure 1 and Figure 3 The outer surface of the end cover body 1 is fixedly connected with four fixing ears 2, and the four fixing ears 2 are all threadedly connected with bolts 3. The end cover body 1 and the motor housing can be fixed by the four fixing ears 2 and four bolts 3, which is convenient for fixing and disassembling the end cover body 1.

[0024] Reference Figure 1 and Figure 2 A large sealing ring 4 is fixedly connected to the outer ring inside the end cover body 1, which can make the end cover body 1 more tightly connected to the motor housing to prevent dust from entering the inside of the motor. A small sealing ring 8 is embedded in the outer wall of the through hole 7, which can fill the gap between the motor output end and the through hole 7 to prevent dust from entering the motor through the through hole 7 and causing damage to the motor.

[0025] Reference Figure 4 The outer surface of one end of the bolt 12 is smooth, and the outer surfaces of the middle part and the other end of the bolt 12 are provided with threads. The threaded portion of the bolt 12 can be threadedly connected with the limiting ring 9 to fix the bolt 12. The smooth portion of the bolt 12 extends into the outer ring on one side of the bearing 11 to fix it. The smooth portion of the bolt 12 can prevent the surface of the bearing 11 from being scratched during the rotation of the bolt 12.

[0026] The implementation principle of a motor end cover assembly of the embodiment of the present application is as follows: by setting bolt 2 12, the bearing 11 can be passed through the top of the limiting protrusion 10, the limiting protrusion 10 is squeezed outward, and the bearing 11 is continuously squeezed into the limiting ring 9 to stably fix the bearing 11. The output end of the motor can be passed through the middle of the bearing 11 and fixed, and then the output end of the motor is passed through the through hole 7, and the four bolts 2 12 are rotated toward the middle, so that one end of the four bolts 2 12 exceeds the outer ring of the bearing 11, which has a blocking and fixing effect on the bearing 11. The bottom of the four bolts 2 12 is close to one side of the bearing 11. Once the bearing 11 is tilted, one of the four bolts 2 12 must be unable to be screwed in. This can ensure that the bearing 11 is placed horizontally, preventing the bearing 11 from being tilted and fixed, and subsequently causing damage to the output end of the motor. The end cover body 1 and the motor housing are fixed by four fixing ears 2 and four bolts 1 3; it has the effect of stably and horizontally fixing the bearing 11;

[0027] By setting the magnetic block 13, four magnetic blocks 13 are set on the inner side of the end cover body 1. The magnetic block 13 can absorb the metal powder and iron filings generated by the motor working for a long time to prevent the metal powder and iron filings from causing the motor to short-circuit; it has the effect of absorbing iron filings and preventing the motor from short-circuiting.

[0028] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0029] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0030] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0031] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A motor end cover assembly, comprising an end cover body (1), characterized in that: A placement groove (6) is provided in the middle of the end cover body (1), a bearing (11) is fixedly connected inside the placement groove (6), a through hole (7) is provided in the middle of the placement groove (6), a limit ring (9) is fixedly connected to the middle of the inner side of the end cover body (1), a plurality of limit protrusions (10) are fixedly connected to the inner side of the limit ring (9), four bolts (12) are threadedly connected to the side wall of the limit ring (9), and four magnetic blocks (13) are arranged on the inner side of the end cover body (1).

2. The motor end cover assembly according to claim 1, characterized in that: Four reinforcing ribs (5) are evenly and fixedly connected to the inner side of the end cover body (1), four grooves are formed between the four reinforcing ribs (5) and the inner side and side wall of the end cover body (1), and the four magnetic blocks (13) are respectively fixedly connected to the four grooves.

3. The motor end cover assembly according to claim 1, characterized in that: Four fixing ears (2) are fixedly connected to the outer surface of the end cover body (1), and the four fixing ears (2) are all threadedly connected to bolts 1 (3).

4. The motor end cover assembly according to claim 1, characterized in that: A large sealing ring (4) is fixedly connected to the outer ring inside the end cover body (1), and a small sealing ring (8) is embedded in the outer wall of the through hole (7).

5. The motor end cover assembly according to claim 1, characterized in that: The outer surface of one end of the second bolt (12) is smooth, and the outer surfaces of the middle part and the other end of the second bolt (12) are provided with threads.

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