CN220544771U

CN220544771U - Quick-disassembly end cover lug structure

Info

Publication number: CN220544771U
Application number: CN202322245369.6U
Authority: CN
Inventors: 郭瑞素; 沈策; 王敬涛; 殷炜隽; 李亚森; 田晓丽
Original assignee: Zhongda Motors Co Ltd
Current assignee: Zhongda Motors Co Ltd
Priority date: 2023-08-21
Filing date: 2023-08-21
Publication date: 2024-02-27
Anticipated expiration: 2033-08-21

Abstract

The utility model relates to a quick-dismantling end cover lug structure. The utility model comprises an end cover lug body circumferentially distributed at the peripheral end of an end cover, wherein the end cover lug body is used for being matched with a base lug to connect the end cover with the base; wherein: an extending surface with an opening is extended from one surface of the end cover lug body, which is close to the base lug, and a groove is formed on the extending surface; a concave surface is formed on one part of the surface of the groove, a lug surface which is attached to the base lug is formed on the other part of the surface of the groove, and a mounting through hole positioned in the groove is formed on the concave surface; and a disassembly groove is formed between the concave surface and the base lug. In one embodiment of the present utility model, a supporting step is formed between the extension surface and the lug surface, and the base lug is attached to and abutted against the supporting step. The utility model improves the disassembly efficiency of the base lug, thereby improving the production efficiency.

Description

Quick-disassembly end cover lug structure

Technical Field

The utility model relates to the technical field of motors, in particular to a quick-disassembly end cover lug structure.

Background

In removing the motor, removing the end cap is a critical step because the end cap typically needs to be removed first to extract the rotor. The structure of the end cap strap plays an important role in disassembling the motor.

However, the following problems exist in the conventional lug for connecting the end cover with the base:

the disassembly groove is too shallow, has almost no practical effect, sometimes needs to be knocked on the outer surface to be disassembled, so that the disassembly process is very difficult, and particularly, the efficiency is low when reworking and repair are needed, thereby bringing trouble to operators;

the disassembly groove is too deep, gaps exist between the end cover lugs and the lugs, when bolts are screwed down, the lugs are deformed due to the change of the gaps, so that the jumping of the end cover flange mounting surface of the motor is increased to exceed the standard requirement, the qualification rate is reduced, the coaxiality of the end cover mounting, the jumping of the flange surface and the spigot are increased due to the deformation of the lugs, the mechanical loss of the motor is increased, and larger vibration and noise are possibly generated after the load is mounted;

when the end cover lugs are assembled with the base lugs and are fixed by bolts, if gaps exist around the bolts without solid support, the stressed lugs deform when the bolts are screwed or loosened.

Disclosure of Invention

Therefore, the utility model provides the end cover lug structure capable of being quickly disassembled, so that the disassembling efficiency of the machine base lug is improved, and the production efficiency is further improved.

In order to solve the technical problems, the utility model provides a quick-disassembly end cover lug structure, which comprises:

the end cover lug bodies are circumferentially distributed at the peripheral end of the end cover and are used for being matched with the base lug to connect the end cover with the base;

wherein:

an extending surface with an opening is extended from one surface of the end cover lug body, which is close to the base lug, and a groove is formed on the extending surface;

a concave surface is formed on one part of the surface of the groove, a lug surface which is attached to the base lug is formed on the other part of the surface of the groove, and a mounting through hole positioned in the groove is formed on the concave surface;

and a disassembly groove is formed between the concave surface and the base lug.

In one embodiment of the present utility model, a supporting step is formed between the extension surface and the lug surface, and the base lug is attached to and abutted against the supporting step.

In one embodiment of the utility model, the engine base lug is provided with a threaded hole, and the bolt sequentially penetrates through the gasket and the mounting through hole and is connected with the threaded hole.

In one embodiment of the present utility model, a predetermined gap is left between the distance between the mounting through hole and the extension surface and the transition step between the concave surface and the groove.

In one embodiment of the present utility model, the preset gap is 1±0.1mm.

In one embodiment of the utility model, the dismantling groove has a groove depth of 3+ -0.5 mm.

In one embodiment of the utility model, the depth of the groove is 5+ -0.5 mm.

In one embodiment of the utility model, a notch is arranged at the upper end of the base lug close to the dismounting groove.

In one embodiment of the utility model, the concave surface extends to a face of the end cap strap body located at an upper portion of the opening, the face being adjacent to the base strap.

In one embodiment of the present utility model, the grooves have an inverted trapezoid structure.

Compared with the prior art, the technical scheme of the utility model has the following advantages:

according to the quick-disassembly end cover lug structure, the disassembly groove is arranged, and the base lug is used as a fulcrum, so that convenient disassembly operation is realized. After the bolts are screwed off, the end cover can be easily pried open only by inserting a straight-head screw cutter or a 2-3mm thick steel plate into the dismounting groove. Meanwhile, after assembly, the disassembly groove is skillfully arranged, so that the existence of the disassembly groove is difficult to be seen from the appearance, and the overall attractiveness is greatly improved.

Drawings

In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings.

FIG. 1 is a schematic view of the end cap strap structure of the present utility model.

Fig. 2 is a front view of the end cap strap body of the present utility model.

Fig. 3 is a side view of the end cap strap body of the present utility model.

Fig. 4 is a front view of the end cap strap structure of the present utility model with the bolts removed.

FIG. 5 is a side view of the end cap strap structure of the present utility model with the bolts removed.

Description of the specification reference numerals:

1. an end cap strap body; 11. an extension surface; 111. an opening; 12. a groove; 13. a concave surface; 14. mounting through holes; 14a, presetting a gap; 15. a dismantling groove; 16. a support step; 17. a lug surface;

2. a base lug; 21. a threaded hole; 22. a notch;

3. a bolt;

4. a gasket.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the utility model and practice it.

In the present utility model, if directions (up, down, left, right, front and rear) are described, they are merely for convenience of description of the technical solution of the present utility model, and do not indicate or imply that the technical features must be in a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, "a plurality of" means one or more, and "a plurality of" means two or more, and "greater than", "less than", "exceeding", etc. are understood to not include the present number; "above", "below", "within" and the like are understood to include this number. In the description of the present utility model, the description of "first" and "second" if any is used solely for the purpose of distinguishing between technical features and not necessarily for the purpose of indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the present utility model, unless clearly defined otherwise, terms such as "disposed," "mounted," "connected," and the like should be construed broadly and may be connected directly or indirectly through an intermediate medium, for example; the connecting device can be fixedly connected, detachably connected and integrally formed; can be mechanically connected, electrically connected or capable of communicating with each other; may be a communication between two elements or an interaction between two elements. The specific meaning of the words in the utility model can be reasonably determined by a person skilled in the art in combination with the specific content of the technical solution.

Referring to fig. 1 to 5, a quick release end cap strap structure of the present utility model includes: the end cover lug body 1 is circumferentially distributed at the peripheral end of the end cover, and the end cover lug body 1 is used for being matched with the base lug 2 to connect the end cover with the base; wherein: an extension surface 11 with an opening 111 is extended on one surface of the end cover lug body 1 close to the base lug 2, and a groove 12 is formed on the extension surface 11; a concave surface 13 is arranged on one part of the surface of the groove 12, a lug surface 17 which is attached to the base lug 2 is formed on the other part of the surface of the groove 12, and the concave surface 13 is provided with a mounting through hole 14 positioned in the groove 12; a dismounting groove 15 is formed between the concave surface 13 and the base lug 2.

Specifically, a supporting step 16 is formed between the extension surface 11 and the lug surface 17, and the base lug 2 is attached to and abutted against the supporting step 16. The support step 16 may provide stable support, improving the stability of the connection between the end cap and the housing.

Specifically, the base lug 2 is provided with a threaded hole 21, and the bolt 3 sequentially penetrates through the gasket 4 and the mounting through hole 14 and is connected with the threaded hole 21. The arrangement of the bolts 3 and the gaskets 4 can improve the connection strength between the end cover and the machine base, and is convenient to detach and maintain.

Specifically, a preset gap 14a is left between the distance between the installation through hole 14 and the extension surface 11 and the transition step between the concave surface 13 and the groove 12. In some embodiments, the predetermined gap 14a is 1±0.1mm. Can ensure the connection stability and the convenience of dismantling between end cover and the frame, help increasing the connecting area of mounting hole, provide more firm assembly effect to stability and the reliability of whole structure have been strengthened. The problem that the positions of the mounting holes are not uniform enough due to tolerance in the machining process can be solved, butt joint and fitting can be better carried out during assembly, and the assembly quality and efficiency are improved.

Specifically, the depth (a in fig. 2) of the detaching groove 15 is 3±0.5mm.

Specifically, the groove depth (b in fig. 2) of the groove 12 is 5±0.5mm. It is ensured that the dismounting groove 15 provides sufficient prying force without affecting the strength of the connection between the end cap and the housing.

Specifically, a notch 22 is provided at the upper end of the base strap 2 near the detaching slot 15. The notch 22 can facilitate the insertion of the disassembling tool, and the convenience of disassembling is improved. Specifically, the concave surface 13 extends on a surface of the end cap strap body 1 located at an upper portion of the opening 111 and close to the base strap 2. The connection stability between the end cover and the engine base is improved.

Specifically, the groove 12 has an inverted trapezoidal structure. The inverted trapezoid structure can improve the connection strength between the end cover and the engine base, and is convenient to detach and maintain.

The screw driver with a straight head is used for deflecting the head or a steel plate with the thickness of 2-3mm is inserted into the dismounting groove 15, the upper end of the base lug 2 can be used as a fulcrum to form a force arm, and the end cover can be easily pried. Meanwhile, after assembly, the dismounting groove 15 is skillfully arranged, so that the existence of the dismounting groove 15 is difficult to be seen from the appearance, and the overall attractiveness is greatly improved.

Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same, and although the present utility model has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications and equivalents may be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model, and all such modifications and equivalents are intended to be encompassed in the scope of the claims of the present utility model.

Claims

1. An end cap strap structure for quick disassembly, comprising:

the end cover lug bodies (1) are circumferentially distributed at the peripheral ends of the end covers, and the end cover lug bodies (1) are used for being matched with the machine base lugs (2) to connect the end covers with the machine base;

wherein:

an extension surface (11) with an opening (111) is extended on one surface of the end cover lug body (1) close to the base lug (2), and a groove (12) is formed on the extension surface (11);

a concave surface (13) is formed on one part of the surface of the groove (12), a lug surface (17) which is attached to the base lug (2) is formed on the other part of the surface of the groove (12), and the concave surface (13) is provided with a mounting through hole (14) which is positioned in the groove (12);

and a dismounting groove (15) is formed between the concave surface (13) and the base lug (2).

2. The quick release end cap strap structure of claim 1, wherein a support step (16) is formed between the extension surface (11) and the strap surface (17), and the base strap (2) is attached to and abutted against the support step (16).

3. The quick detachable end cover lug structure according to claim 1, further comprising a bolt (3) and a gasket (4), wherein the base lug (2) is provided with a threaded hole (21), and the bolt (3) sequentially penetrates through the gasket (4) and the mounting through hole (14) and is connected with the threaded hole (21).

4. A quick release end cap strap arrangement according to claim 1, wherein a predetermined gap (14 a) is provided between the mounting through hole (14) and the extension surface (11) and between the recess (13) and the transition step between the recess (12).

5. The quick release end cap strap arrangement of claim 4, wherein the predetermined gap (14 a) is 1 ± 0.1mm.

6. A quick release end cap strap arrangement according to claim 1, wherein the release groove (15) has a groove depth of 3±0.5mm.

7. A quick release end cap strap arrangement according to claim 1, wherein the groove depth of the recess (12) is 5±0.5mm.

8. The quick release end cap strap arrangement of claim 1, wherein a notch (22) is provided at the upper end of the base strap (2) adjacent the release slot (15).

9. A quick release end strap arrangement according to claim 1, wherein the recessed surface (13) extends on a side of the end strap body (1) located on an upper portion of the opening (111) adjacent the base strap (2).

10. A quick release end cap strap arrangement according to claim 1, wherein the recess (12) is of inverted trapezoidal configuration.