Motor assembly

Abstract

The utility model discloses a motor assembly comprising a motor, the motor comprises a housing and a motor shaft extending from the housing, and one end of the motor shaft is provided with a worm; the gear box is detachably installed on the shell, a positioning hole which is used for positioning the worm and enabling the worm to extend into the gear box to be meshed with a worm gear in the gear box is formed in the gear box, and the worm is in transition fit with the positioning hole. Compared with the prior art, due to the fact that the worm and the positioning hole are ingeniously arranged to be in transition fit, the worm only needs to be inserted into the gear box after being aligned with the positioning hole in the installation process, the worm can push the worm wheel to rotate after being meshed with the worm wheel, and therefore the worm continues to move into the gear box till the worm cannot move into the gear box any more. Due to the action of the positioning hole, the worm and the worm gear are in an engaged state, and the motor has the advantages of ensuring the engagement of the worm and the worm gear, effectively improving the stability and reliability of the motor and being beneficial to improving the production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, and in particular to a motor component. Background Art

[0002] The existing motor gearbox consists of an upper shell and a lower shell, which are fixed together by screws, and then the screws are passed through the screw holes of the lower shell and then threadedly connected with the threaded holes on the motor shell to fix the gearbox on the motor shell. The gearbox is provided with a connecting hole, and one end of the motor shaft of the motor passes through the connecting hole and is connected to the input gear in the gearbox. The connecting hole has no positioning effect on one end of the motor shaft of the motor. When installing, one end of the motor shaft is first inserted into the gearbox through the connecting hole, and one end of the motor shaft can shake relative to the connecting hole. There is no transmission between the input gear and one end of the motor shaft Connection, only when the gear box is completely fixed to the motor, one end of the motor shaft will be pushed to the input gear and connected with the input gear; the above structure has the following problems: 1. When installing, it is positioned only by screws. When the threaded hole of the gear box is not completely aligned with the threaded hole on the floor fan drive motor and is offset, the input gear and one end of the motor shaft cannot be effectively connected. The rotation of one end of the motor shaft cannot drive the input gear to rotate; 2. Since there is a large gap between the connecting hole and one end of the motor shaft, dust and water vapor can easily enter the gear box, affecting the transmission effectiveness and life of the transmission gear set. Utility Model Content

[0003] The purpose of the utility model is to provide a motor component, which is used to solve the above technical problems.

[0004] A motor assembly comprises: a motor, the motor comprising a housing and a motor shaft extending from the housing, a worm being arranged at one end of the motor shaft; a gear box, the gear box being detachably mounted on the housing, the gear box being provided with a positioning hole for positioning the worm and allowing the worm to extend into the gear box and mesh with a worm wheel in the gear box, the worm and the positioning hole being a transition fit.

[0005] Preferably, the worm is directly processed from the motor shaft; or the worm is fixed by a coupling; or a worm sleeve is sleeved on the motor shaft.

[0006] Preferably, the gear box consists of an upper shell and a lower shell.

[0007] Preferably, the upper shell is provided with a plurality of outwardly extending arms, each of which is provided with a buckle hole; the lower shell is correspondingly provided with a plurality of outwardly extending legs that can be connected to the arms, each of which is correspondingly provided with an elastic buckle that can be buckled into the buckle hole.

[0008] Preferably, the arm and the leg are each provided with a plurality of opposite screw holes.

[0009] Preferably, the housing is provided with a plurality of threaded holes which are opposite to the screw holes on the supporting arms and supporting legs, and the screw holes are provided with screws which are used to pass through the screw holes on the supporting arms and supporting legs and be screwed with the threaded holes to fix the gear box on the housing.

[0010] Compared with the prior art, the utility model cleverly arranges a transition fit between the worm and the positioning hole. During installation, the worm only needs to be aligned with the positioning hole and inserted into the gear box. When the worm is meshed with the worm wheel, it will push the worm wheel to rotate, so that the worm continues to move into the gear box until the worm can no longer move into the gear box. Due to the role of the positioning hole, the worm and the worm wheel are in a meshing state at this time, and then the gear box can be fixed to the housing of the motor, which has the advantages of ensuring the meshing of the worm and the worm wheel, effectively improving the stability and reliability of the motor, and extending the service life and being beneficial to improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A three-dimensional diagram of a motor assembly of the utility model;

[0012] Figure 2 is a three-dimensional diagram of the motor;

[0013] Figure 3 is a three-dimensional diagram of a gear box;

[0014] Figure 4 A three-dimensional view of the gearbox with the lower cover removed;

[0015] The realization of the functions and advantages of the utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0016] The following will disclose multiple embodiments of the present invention with drawings. For the purpose of clear description, many practical details will be described together in the following description. However, it should be understood that these practical details should not be used to limit the present invention. In other words, in some embodiments of the present invention, these practical details are not necessary. In addition, in order to simplify the drawings, some conventional structures and components will be depicted in a simple schematic manner in the drawings.

[0017] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0018] In addition, in the present utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present utility model. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0019] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings:

[0020] like Figures 1 to 4 As shown, a motor assembly includes: a motor 1, the motor 1 includes a housing 11 and a motor shaft 12 extending from the housing 11, and a worm 13 is arranged at one end of the motor shaft 12; a gear box 2, the gear box 2 is detachably mounted on the housing 11, and the gear box 2 is provided with a positioning hole 22 for positioning the worm 13 and allowing the worm 13 to extend into the gear box 2 and mesh with a worm wheel 21 in the gear box 2, and the worm 13 and the positioning hole 22 are transitionally matched. Compared with the prior art, the utility model cleverly arranges a transition fit between the worm 13 and the positioning hole 22. During installation, the worm 13 only needs to be aligned with the positioning hole 22 and then inserted into the gear box 2. When the worm 13 is meshed with the worm wheel 21, it will push the worm wheel 21 to rotate, so that the worm 13 continues to move into the gear box 2 until the worm 13 can no longer move into the gear box 2. Due to the effect of the positioning hole 22, the worm 13 and the worm wheel 21 are kept in a meshing state at this time, and then the gear box 2 can be fixed to the housing 11 of the motor 1, which has the advantages of ensuring the meshing of the worm and the worm wheel, effectively improving the stability and reliability of the motor, and extending the service life and being conducive to improving production efficiency. The present invention overcomes the technical bias of the prior art. The technical bias of the prior art is that when the diameter of the connecting hole is substantially the same as that of one end of the motor shaft, one end of the motor shaft cannot be fully inserted into the gear box due to obstruction by the input gear. The connecting hole can only be enlarged so as not to obstruct the motor shaft and placed next to the input gear. After one end of the motor shaft is placed next to the input gear, it is moved toward the input gear so that the input gear and one end of the motor shaft are in contact again to realize the rotational connection.

[0021] Specifically, the worm 13 is directly processed from the motor shaft 12; or the worm is fixed by a coupling; or a worm sleeve is sleeved on the motor shaft. The end 14 of the worm 13 does not have helical teeth. After the gear box 2 is fixed to the housing 11 of the motor 1, the positioning hole 22 surrounds the end 14 of the worm 13, and the end 14 of the worm 13 and the positioning hole 22 are transitionally matched.

[0022] Furthermore, the gear box 2 is composed of an upper shell 23 and a lower shell 24; the upper shell 23 is provided with three outwardly extending arms 231, each of which is provided with a buckle hole 232; the lower shell 24 is correspondingly provided with three outwardly extending legs 241 that can be connected to the arms 231, each of which is correspondingly provided with an elastic buckle 242 that can be buckled on the buckle hole 232. During assembly, the elastic buckle 242 of the lower shell 24 is directly aligned with the buckle hole 232 of the upper shell 23, and then the lower shell 24 is pressed against the upper shell 23, so that the elastic buckle 242 is buckled on the buckle hole 232, thereby achieving a fixed connection between the upper shell 23 and the lower shell 24. During assembly, there is no need to place the screws and then tighten the screws, which has the advantages of further simplifying the assembly process and improving production efficiency.

[0023] In addition, the arm 231 and the leg 241 are each provided with three screw holes 3 facing each other. The housing 11 is provided with three threaded holes 4 facing each other with the screw holes 3 on the arm and the leg, and the screw holes 3 are provided with screws 5 for passing through the screw holes 3 on the arm 231 and the leg 241 and being screwed with the threaded holes 4 to fix the gear box 2 on the housing 11. On the basis of the elastic undercut 242 being screwed with the screw hole 232 to fix the upper housing 23 and the lower housing 24 together, the screw 5 further effectively fixes the upper housing 23 and the lower housing 24 together.

[0024] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A motor assembly, characterized in that: include: The motor comprises a housing and a motor shaft extending from the housing, and a worm is arranged at one end of the motor shaft; The gear box is detachably mounted on the housing, and is provided with a positioning hole for positioning the worm and allowing the worm to extend into the gear box and mesh with the worm wheel in the gear box, and a transition fit is provided between the worm and the positioning hole.

2. A motor assembly according to claim 1, characterized in that: The worm is directly processed from the motor shaft; or the worm is fixed by a coupling; or a worm sleeve is sleeved on the motor shaft.

3. The motor assembly according to claim 1, characterized in that: The end of the worm does not have helical teeth. After the gear box is fixed to the housing of the motor, the positioning hole surrounds the end of the worm, and a transition fit is formed between the end of the worm and the positioning hole.

4. The motor assembly according to claim 1, characterized in that: The gear box consists of an upper shell and a lower shell.

5. A motor assembly according to claim 4, characterized in that: The upper shell is provided with a plurality of outwardly extending supporting arms, each of which is provided with a buckle hole; the lower shell is correspondingly provided with a plurality of outwardly extending supporting legs which can be connected with the supporting arms, each of which is correspondingly provided with an elastic buckle which can be buckled in the buckle hole.

6. A motor assembly according to claim 5, characterized in that: The supporting arm and the supporting leg are both provided with a plurality of screw holes facing each other.

7. The motor assembly according to claim 5, characterized in that: The shell is provided with a plurality of threaded holes which can be directly opposite to the screw holes on the supporting arms and supporting legs, and the screw holes are provided with screws which are used to pass through the screw holes on the supporting arms and supporting legs and be screwed with the threaded holes to fix the gear box on the shell.

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