CN216483495U

CN216483495U - Auxiliary tool for detecting noise of direct-drive motor

Info

Publication number: CN216483495U
Application number: CN202123138754.8U
Authority: CN
Inventors: 凌志东; 陈园园; 吴云贵
Original assignee: Changhong Meiling Co Ltd
Current assignee: Changhong Meiling Co Ltd
Priority date: 2021-12-14
Filing date: 2021-12-14
Publication date: 2022-05-10
Anticipated expiration: 2031-12-14

Abstract

The utility model discloses an auxiliary fixtures for directly driving motor noise detects relates to motor noise detection technical field. The utility model comprises a base which is horizontally arranged; a supporting box is vertically fixed on the upper surface of the base; a connecting shaft is horizontally arranged in the supporting box; two ends of the connecting shaft are respectively inserted on two opposite side walls of the supporting box in a rotating way; one end of the connecting shaft can be coaxially connected with an output shaft of the direct drive motor to be detected; a stator bearing component corresponding to the connecting shaft is arranged on one side wall of the supporting box; the stator bearing assembly is used for fixing the direct-drive motor to be detected on the supporting box. The utility model discloses a stator bearing assembly will wait to detect the stator that directly drives the motor and be fixed in the supporting box on, can be adapted to the test installation that directly drives the motor of different grade type, have higher market using value.

Description

Auxiliary tool for detecting noise of direct-drive motor

Technical Field

The utility model belongs to the technical field of the motor noise detects, especially, relate to an auxiliary fixtures for directly driving motor noise detects.

Background

At present, drum washing machines are gradually becoming mainstream in the market, and mainly comprise a box body, an inner barrel, an outer barrel, a motor, a control system and the like, and the noise of the washing machines is composed of the vibration of a suspension system and the noise of the motor. With the improvement of quality of life, the requirements for the noise performance of the washing machine are also continuously increasing. The drum DD direct drive motor is lower in noise, more stable in performance, popular with the public and becoming an indispensable household appliance for high-quality life.

At present, no specific scheme for testing the noise of a single DD direct drive motor is provided in the market, and the test is basically carried out on the complete machine. The test mode can cause that the obtained result is not the noise of a single-product motor, and the single-product noise of the motor cannot be accurately obtained, so that the quality of the single-product motor cannot be accurately distinguished, and the noise performance of the whole machine can be influenced by using a secondary motor product on the whole machine; and receive the influence of complete machine, current test mode also has the inefficiency scheduling problem, is unfavorable for the incoming goods to examine the goods. Therefore, the noise performance of the single DD direct drive motor is detected, the goods detection efficiency can be accelerated, and the quality of the performance of the motor can be better distinguished, so that the noise performance of the whole machine is further improved. Therefore, a tool is needed to replace a complete machine to independently detect the noise performance of a single-product motor at the present stage.

SUMMERY OF THE UTILITY MODEL

The utility model provides a supplementary frock for directly driving motor noise detects, its purpose is in order to solve the current DD that proposes among the above-mentioned background art and directly drives motor test mode and have the relatively poor and lower class technical problem of detection efficiency of detection effect.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to an auxiliary tool for detecting the noise of a direct drive motor, which comprises a horizontally arranged base; a supporting box is vertically fixed on the upper surface of the base; a connecting shaft is horizontally arranged in the supporting box; two ends of the connecting shaft are rotatably inserted into two opposite side walls of the supporting box respectively; one end of the connecting shaft can be coaxially connected with an output shaft of the direct drive motor to be detected; a stator bearing assembly corresponding to the connecting shaft is arranged on one side wall of the supporting box; the stator bearing assembly is used for fixing the direct-drive motor to be detected on the supporting box.

As an optimized technical scheme of the utility model, the cotton of making an uproar falls in the inner wall of supporting box attached.

As a preferred technical solution of the present invention, a first ring groove and a second ring groove are formed on a side wall of the support box; the first ring groove is arranged on the outer side of the second ring groove, and the first ring groove and the second ring groove are coaxially arranged; the stator bearing assembly comprises a plurality of first nuts uniformly distributed in the first ring groove, a plurality of second nuts uniformly distributed in the second ring groove and a plurality of bearing strips uniformly distributed; two ends of the bearing strip are respectively connected in the first annular groove and the second annular groove in a sliding manner; a sliding groove is formed in one surface, far away from the supporting box, of the bearing strip along the length direction; a first positioning hole corresponding to the first nut and a second positioning hole corresponding to the second nut are arranged in the sliding groove in parallel; and a third nut and a screw column corresponding to the third nut are connected in the sliding groove in a sliding manner.

The utility model discloses following beneficial effect has:

the utility model discloses a stator carrier assembly will wait to detect the stator that directly drives the motor and be fixed in the supporting box on, can be adapted to the test installation that directly drives the motor of different grade type to play the additional role to the noise that detects the DD and directly drive the motor, can effectively improve the detection efficiency and the detection effect that directly drives the motor to the DD, not only can be to accelerating the DD and directly drive the good and bad differentiation efficiency of motor performance simultaneously, can also accelerate normally to examine goods efficiency, have higher market using value.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of an auxiliary tool for detecting noise of a direct drive motor according to the present invention;

FIG. 2 is a front view of the structure of FIG. 1;

FIG. 3 is a side view of the structure of FIG. 1;

FIG. 4 is a top view of the structure of FIG. 1;

fig. 5 is a schematic structural diagram of the stator bearing assembly of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1-a base, 2-a support box, 3-a connecting shaft, 4-a stator bearing component, 5-noise reduction cotton, 201-a first ring groove, 202-a second ring groove, 401-a first nut, 402-a second nut, 403-a bearing strip, 404-a third nut and 405-a screw column.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1-4, the utility model relates to an auxiliary tool for detecting the noise of a direct drive motor, which comprises a base 1 horizontally arranged; a supporting box 2 is vertically fixed on the upper surface of the base 1; a connecting shaft 3 is horizontally arranged in the supporting box 2; two ends of the connecting shaft 3 are respectively inserted on two opposite side walls of the supporting box 2 in a rotating way; the connecting shaft 3 is connected with the side wall of the supporting box 2 by adopting a conventional roller bearing in the field; one end of the connecting shaft 3 can be coaxially connected with an output shaft of a direct drive motor to be detected; a stator bearing component 4 corresponding to the connecting shaft 3 is arranged on one side wall of the supporting box 2; the stator bearing assembly 4 is used for fixing the direct-drive motor to be detected on the supporting box 2.

When the direct-drive motor testing device is used, the DD direct-drive motor is fixed on the support box 2 through the stator bearing assembly 4, an output shaft of the DD direct-drive motor is connected with one end of the connecting shaft 3, the other end of the connecting shaft 3 is connected with the corresponding driving plate, then a three-phase line of the DD direct-drive motor is connected with the detection equipment, the DD direct-drive motor is controlled to rotate to the corresponding test rotating speed by starting a detection program corresponding to the detection equipment and the DD direct-drive motor, meanwhile, the noise value of the detected DD direct-drive motor is tested through the noise test equipment, and finally, the obtained noise value is the noise value of the single-product motor.

As shown in fig. 3-4, the noise reduction cotton 5 is attached to the inner wall of the support box 2, so that the noise generated by the connecting shaft 3 and the roller bearing in the operation process can be further reduced.

The second embodiment is as follows:

on the basis of the first embodiment, the present embodiment is different in that:

as shown in fig. 5, a first ring groove 201 and a second ring groove 202 are formed on a side wall of the support box 2; the first ring groove 201 is arranged outside the second ring groove 202, and the first ring groove 201 and the second ring groove 202 are coaxially arranged; the stator bearing component 4 comprises a plurality of first nuts 401 uniformly fixed in the first ring groove 201, a plurality of second nuts 402 uniformly fixed in the second ring groove 202, and a plurality of bearing strips 403 uniformly arranged; two ends of the carrying bar 403 are respectively connected in the first ring groove 201 and the second ring groove 202 in a sliding manner; a sliding groove is formed in the length direction of one surface of the carrying strip 403 far away from the supporting box 2; a first positioning hole corresponding to the first nut 401 and a second positioning hole corresponding to the second nut 402 are arranged in the sliding groove in parallel; a third nut 404 and a screw column 405 corresponding to the third nut 404 are slidably connected in the sliding groove.

During the use, according to the DD direct drive motor that awaits measuring, utilize the screw to be connected first nut 401 with first locating hole and second nut 402 with the second locating hole respectively, reuse the screw with the screw hole on the DD direct drive motor be connected with screw post 405 and third nut 404 to the realization is with the DD direct drive motor that awaits measuring being fixed in on supporting box 2. The bearing strip 403 has adjustability, the adjusting direction is the circumferential position of the mounting position, the screw column 405 can be detached at the same time to adjust the radial position of the mounting position, and the mounting mode is connected through the sliding groove, so that the position can be adjusted conveniently without detaching; the stator bearing assembly 4 does not need to worry about the incapability of testing due to different design schemes of the motor, and the influence on judgment and testing caused by noise generated by a resonance phenomenon possibly generated when the stator bearing assembly is arranged on the whole machine is avoided.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, thereby enabling others skilled in the art to best understand the invention and its practical application. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The auxiliary tool for detecting the noise of the direct drive motor is characterized by comprising a base (1) which is horizontally arranged; a supporting box (2) is vertically fixed on the upper surface of the base (1);

a connecting shaft (3) is horizontally arranged in the supporting box (2); two ends of the connecting shaft (3) are respectively inserted on two opposite side walls of the supporting box (2) in a rotating and penetrating manner; one end of the connecting shaft (3) can be coaxially connected with an output shaft of a direct drive motor to be detected; a stator bearing component (4) corresponding to the connecting shaft (3) is arranged on one side wall of the supporting box (2); the stator bearing assembly (4) is used for fixing the direct-drive motor to be detected on the supporting box (2).

2. The auxiliary tool for detecting the noise of the direct drive motor as claimed in claim 1, wherein noise reduction cotton (5) is attached to the inner wall of the supporting box (2).

3. The auxiliary tool for detecting the noise of the direct drive motor as claimed in claim 1 or 2, wherein a first annular groove (201) and a second annular groove (202) are formed in one side wall of the support box (2); the first ring groove (201) is arranged on the outer side of the second ring groove (202), and the first ring groove (201) and the second ring groove (202) are coaxially arranged; the stator bearing assembly (4) comprises a plurality of first nuts (401) uniformly distributed in the first ring groove (201), a plurality of second nuts (402) uniformly distributed in the second ring groove (202) and a plurality of bearing strips (403) uniformly distributed; two ends of the bearing strip (403) are respectively connected in the first ring groove (201) and the second ring groove (202) in a sliding manner; a sliding groove is formed in the surface, far away from the supporting box (2), of the carrying strip (403) along the length direction; a first positioning hole corresponding to the first nut (401) and a second positioning hole corresponding to the second nut (402) are arranged in the sliding groove in parallel; a third nut (404) and a screw column (405) corresponding to the third nut (404) are connected in the sliding groove in a sliding mode.