Locking structure and motor testing device

Abstract

The utility model provides a locking structure and a motor testing device, the locking structure comprises a clamping assembly, the clamping assembly is provided with an installation part, and the installation part is used for being detachably connected with an object to be tested; the locking assembly is provided with a locking part, and the locking part is used for being connected with the mounting part so as to fix the mounting part and the to-be-tested object; the driving assembly comprises a movable part which is movably arranged, and the movable part is used for driving the locking part to move, so that the locking part is connected with the mounting part; the clamping assembly and the moving part are arranged in a relatively rotatable mode. The technical problem of long motor test period in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor testing, in particular to a locking structure and a motor testing device. Background Art

[0002] The motor is an important power device in various industrial fields. It converts electrical energy into mechanical energy and is the "power source" of various equipment. For example, the brushless DC motor used in the indoor unit of the air conditioner drives the crossflow fan blades to rotate, assisting in the heat exchange of the air conditioner and realizing wind transmission during cooling and heating.

[0003] Before the motor is assembled with other components, we will test its performance, noise, vibration and basic parameters. Taking the brushless DC motor used in the crossflow fan as an example, when conducting load and ear noise tests, the inspector needs to align the motor with the shaft of the crossflow fan, rotate the motor to the "D" side of the motor shaft, tighten the screws, and then power on the test. Not every motor has a "D" side, so the test cycle will be longer if all the actions are done in this way.

[0004] Therefore, the prior art needs to be further developed. Utility Model Content

[0005] The purpose of the utility model is to overcome the above technical deficiencies and provide a locking structure and a motor testing device to solve the technical problem of long motor testing cycle in the related art.

[0006] In order to achieve the above technical objectives, the utility model adopts the following technical solutions: a locking structure is provided, including: a clamping assembly, the clamping assembly has a mounting portion, the mounting portion is used to be detachably connected to the object to be tested; a locking assembly, the locking assembly has a locking portion, the locking portion is used to be connected to the mounting portion to fix the mounting portion and the object to be tested; a driving assembly, including a movably arranged moving portion, the moving portion is used to drive the locking portion to move, so that the locking portion is connected to the mounting portion; the clamping assembly and the moving portion are relatively rotatably arranged.

[0007] Furthermore, the driving assembly has a driving part, on which a driving rod is telescopically provided, and the telescopic direction of the driving rod is the same as the extending direction of the clamping assembly; the driving rod is connected to the moving part, and the driving rod is used to drive the moving part to move.

[0008] Furthermore, the locking assembly includes: a mounting plate, the mounting plate is used to mount the clamping assembly, the mounting plate and the driving assembly are rotatably arranged relative to each other; an elastic member, one end of the elastic member is connected to the mounting plate, and the other end of the elastic member is connected to the locking portion.

[0009] Furthermore, the clamping assembly has a connecting portion, one end of which is connected to the mounting plate, and one end of the connecting portion away from the mounting plate is connected to the mounting portion; the elastic member is sleeved on the outside of the connecting portion.

[0010] Furthermore, a first installation channel is provided in the installation portion, a second installation channel is provided in the connection portion, the first installation channel is communicated with the second installation channel, and an axis of the first installation channel coincides with an axis of the second installation channel.

[0011] Furthermore, the mounting portion is a trumpet-shaped structure.

[0012] Furthermore, an adjustment groove is arranged on the mounting portion, and the adjustment groove runs through the mounting portion.

[0013] Furthermore, there are multiple drive assemblies, and the multiple drive assemblies are arranged around the locking portion.

[0014] A motor testing device comprises: a base plate; a locking structure; a fixing component, which is arranged on the base plate and used to fix an object to be tested; a testing component, which is arranged on the base plate with a spacing from the fixing component, a locking structure is arranged on a side of the testing component close to the fixing component, and the testing component is used to test the object to be tested.

[0015] Furthermore, the driving component includes a first driving component and a second driving component, and the first driving component and the second driving component are respectively located on opposite sides of the clamping component, and the moving part includes a first moving part arranged on the first driving component and a second moving part arranged on the second driving component; the first moving part and the second moving part are arranged at intervals to form an avoidance space between the first moving part and the second moving part to avoid the clamping component.

[0016] Beneficial effects:

[0017] 1. The motor testing device of the utility model simplifies the manual process of screwing the motor and the crossflow fan blade together. After the motor is placed on the test bench by a mechanical arm, the pulling device pulls the motor into the locking structure to lock it, and then the power can be turned on for testing, and manual installation and tightening screws are no longer required.

[0018] 2. The locking structure of the utility model can meet the needs of motor shafts with different diameters and cross-sections. It adopts ferrule locking, and the locking degree can be adjusted. The flared design at the front end of the chuck can prevent the motor from being unable to align with the shaft cavity when being pulled over, thereby improving the fit between the motor and the chuck. The test process can be automated, which takes about 50 seconds, shortens the test cycle, and unifies the test method. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a top view of a motor testing device used in an embodiment of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the locking structure adopted in the embodiment of the utility model;

[0021] Figure 3 It is a structural schematic diagram of a locking assembly of a locking structure adopted in an embodiment of the utility model;

[0022] Figure 4 is a schematic diagram of a clamping assembly of a locking structure adopted in an embodiment of the utility model;

[0023] Figure 5 It is a structural schematic diagram of a driving assembly of a locking structure provided in an embodiment of the utility model.

[0024] The above drawings include the following reference numerals:

[0025] 00. Object to be tested;

[0026] 1. Clamping assembly; 11. Mounting portion; 111. First mounting channel; 112. Adjusting slot; 12. Connecting portion; 121. Second mounting channel; 2. Locking assembly; 21. Locking portion; 22. Mounting plate; 23. Elastic member; 3. Driving assembly; 31. Moving portion; 311. First moving portion; 312. Second moving portion; 313. Avoidance space; 32. Driving portion; 33. Driving rod; 34. First driving assembly; 35. Second driving assembly; 4. Bottom plate; 5. Fixing assembly; 6. Testing assembly. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0028] According to an embodiment of the present invention, a locking structure is provided. Figures 1 to 5 , including: a clamping assembly 1, the clamping assembly 1 has a mounting portion 11, the mounting portion 11 is used to be detachably connected to the object to be tested 00; a locking assembly 2, the locking assembly 2 has a locking portion 21, the locking portion 21 is used to be connected to the mounting portion 11 to fix the mounting portion 11 and the object to be tested 00; a driving assembly 3, including a movably arranged moving portion 31, the moving portion 31 is used to drive the locking portion 21 to move, so that the locking portion 21 is connected to the mounting portion 11; the clamping assembly 1 and the moving portion 31 are relatively rotatably arranged.

[0029] With the above arrangement, when the object to be tested 00 is tested, the moving part 31 on the driving component 3 pushes the locking part 21 to separate the locking part 21 from the mounting part 11, and then the shaft of the object to be tested 00 is connected to the mounting part 11. After the object to be tested 00 is connected to the mounting part 11, the moving part 31 on the driving component 3 is moved to connect the locking part 21 to the mounting part 11, and the shaft of the object to be tested 00 is fixedly connected to the clamping component 1. When the object to be tested 00 is tested, the shaft of the object to be tested 00 rotates, driving the clamping component 1 and the locking component 2 to rotate together with the object to be tested 00. Since the driving component 3 and the clamping component 1 are relatively rotatably arranged, the driving component 3 will not rotate with the rotation of the object to be tested 00.

[0030] In the locking structure of this embodiment, see Figure 2 , Figure 5 The driving assembly 3 has a driving part 32, on which a driving rod 33 is telescopically provided, and the telescopic direction of the driving rod 33 is the same as the extension direction of the clamping assembly 1; the driving rod 33 is connected to the moving part 31, and the driving rod 33 is used to drive the moving part 31 to move. In this way, a cylinder is provided in the driving part 32, and the telescopic rod of the cylinder is connected to the driving rod 33. The cylinder drives the driving rod 33 to telescope on the driving part 32, and then drives the moving part 31 to move along the telescopic direction of the driving rod 33.

[0031] Specifically, the moving part 31 is a plate-shaped structure, and the moving part 31 abuts against the edge of the locking part 21. When the moving part 31 moves in a direction away from the object to be tested 00, the moving part 31 drives the locking part 21 to move together, so that the locking part 21 is separated from the mounting part 11, and the shaft body of the object to be tested 00 can be removed from the mounting part 11.

[0032] In the locking structure of this embodiment, see Figure 2 , Figure 3 The locking assembly 2 includes: a mounting plate 22, the mounting plate 22 is used to mount the clamping assembly 1, and the mounting plate 22 and the driving assembly 3 are relatively rotatable; an elastic member 23, one end of the elastic member 23 is connected to the mounting plate 22, and the other end of the elastic member 23 is connected to the locking portion 21. In this way, the locking portion 21 is connected to the mounting plate 22 through the elastic member 23. When the moving portion 31 moves in a direction away from the mounting plate 22, the elastic member 23 restores its deformation and drives the locking portion 21 to move in the direction of the mounting portion 11, so that the locking portion 21 is connected to the mounting portion 11 to fix the object to be tested 00 and the clamping assembly. Because the clamping assembly 1 and the locking assembly 2 are connected together through the mounting plate 22, when the object to be tested 00 drives the clamping assembly 1 to rotate, the clamping assembly 1 drives the locking assembly 2 to rotate through the mounting plate 22, so that the clamping assembly 1 and the locking assembly 2 can rotate together with the object to be tested 00.

[0033] In the locking structure of this embodiment, see Figure 2 , Figure 4 The clamping assembly 1 has a connecting portion 12, one end of which is connected to the mounting plate 22, and the end of the connecting portion 12 away from the mounting plate 22 is connected to the mounting portion 11; the elastic member 23 is sleeved on the outside of the connecting portion 12. In this way, the connecting portion 12 is connected to the mounting plate 22 according to the mounting portion 11. After the mounting portion 11 is fixedly connected to the shaft of the object to be tested 00, the rotation of the shaft of the object to be tested 00 drives the mounting portion 11 and the mounting plate 22 to rotate together.

[0034] In the locking structure of this embodiment, see Figure 2 , Figure 4 , the mounting portion 11 has a first mounting channel 111, the connecting portion 12 has a second mounting channel 121, the first mounting channel 111 is connected to the second mounting channel 121, and the axis of the first mounting channel 111 coincides with the axis of the second mounting channel 121. In this way, the shaft of the object to be tested 00 passes through the first mounting channel 111 and enters the mounting portion 11. The hollow connecting portion 12 makes the mounting portion 11 have a certain elasticity. When the locking portion 21 is sleeved on the outside of the mounting portion 11, the mounting portion 11 is squeezed to fix the mounting portion 11 and the shaft of the object to be tested 00 together; when the shaft length of the object to be tested 00 is greater than the length of the first mounting channel 111, the shaft of the object to be tested 00 enters the second mounting channel 121. The setting of the second mounting channel 121 enables the locking structure to adapt to motor shafts of different lengths.

[0035] In the locking structure of this embodiment, see Figure 4 The mounting portion 11 is a trumpet-shaped structure. In this way, the trumpet-shaped design at the front end of the mounting portion 11 makes the locking degree of the mounting portion 11 adjustable, and at the same time, it can prevent the shaft body from not being aligned with the axis of the first mounting channel 111 when the object to be tested 00 is pulled over, thereby improving the matching degree between the object to be tested 00 and the locking structure.

[0036] In the locking structure of this embodiment, see Figure 4 The mounting portion 11 is provided with an adjustment slot 112, which runs through the mounting portion 11. Thus, the setting of the adjustment slot 112 makes the inner diameter of the first mounting channel 111 more adjustable, which can adapt to the shafts of the tested object 00 of different sizes and improve the matching degree between the tested object 00 and the locking structure.

[0037] Specifically, there are a plurality of adjustment grooves 112 , and the plurality of adjustment grooves 112 are arranged on the mounting portion 11 at intervals, and the plurality of adjustment grooves 112 are arranged around the mounting portion 11 .

[0038] In the locking structure of this embodiment, see Figure 1There are multiple drive assemblies 3, and multiple drive assemblies 3 are arranged around the locking portion 21. In this way, multiple drive assemblies 3 push the locking portion 21 at the same time, so that the force on the locking portion 21 is more uniform, and the movement of the locking portion 21 is also more stable.

[0039] The present embodiment provides a motor testing device, including: a base plate 4; a locking structure; a fixing assembly 5, the fixing assembly 5 is arranged on the base plate 4, and the fixing assembly 5 is used to fix the object to be tested 00; a testing assembly 6, the testing assembly 6 is arranged on the base plate 4 with a spacing from the fixing assembly 5, and a locking structure is arranged on the side of the testing assembly 6 close to the fixing assembly 5, and the testing assembly 6 is used to test the object to be tested 00. In this way, the shaft of the object to be tested 00 is fixed on the fixing assembly 5 in the direction of the testing assembly 6, and the shaft of the object to be tested 00 is fixedly connected with the clamping assembly 1 and the locking assembly 2. When measuring the object to be tested 00, the shaft drives the clamping assembly 1, the locking assembly 2 and the measuring assembly 6 to rotate coaxially. After the test is completed, the moving part 31 moves in the direction of the testing assembly 6, so that the clamping assembly 1 releases the shaft to complete the test.

[0040] In the motor testing device of this embodiment, see Figure 1 The driving assembly 3 includes a first driving assembly 34 and a second driving assembly 35, which are respectively located on opposite sides of the clamping assembly 1. The moving part 31 includes a first moving part 311 disposed on the first driving assembly 34 and a second moving part 312 disposed on the second driving assembly 35. The first moving part 311 and the second moving part 312 are arranged at intervals to form an escape space 313 between the first moving part 311 and the second moving part 312 for escaping the clamping assembly 1. In this way, when the moving part 31 drives the locking part 21 to move toward the direction close to the test assembly 6, the clamping assembly 1 can pass through the escape space 313, so that the moving part 31 can smoothly push the locking part 21 to a position away from the mounting part 11.

[0041] The control process of the motor testing device of this embodiment is specifically as follows:

[0042] First, set the pulling parameters of the object to be tested 00 and the driving component 3. Then, the robot arm places the object to be tested 00 in the fixed component 5. The driving part 32 tightens the moving part 31 in the direction close to the test component 6, compresses the elastic member 23 connected to the locking part 21, and then relaxes the mounting part 11. At the same time, the cylinder in the fixed component 5 pulls the object to be tested 00 in the direction close to the mounting part 11. The front end of the mounting part 11 is designed in a trumpet shape, which can meet the needs of shafts with different diameters and cross-sections, and can avoid the object to be tested 00 from being unable to align when it is pulled over. The quasi-axial cavity improves the fit between the object to be tested 00 and the mounting portion 11, and eliminates the steps of manually turning over the object to be tested 00, fixing the crossflow fan blades with screws, and disassembling after the test is completed; when the object to be tested 00 and the driving component 3 reach the distance set by the parameters and stop, the cylinder of the driving component 3 is controlled to relax, and the moving portion 31 cancels the force applied to the elastic member 23, so that the locking portion 21 at the front end of the elastic member 23 moves forward under the push of the elastic force, and the locking portion 21 locks the mounting portion 11, firmly fixing the shaft body of the object to be tested 00.

[0043] Preferably, the clamping assembly 1 and the crossflow blades in the test assembly 6 are integrated. After the shaft of the object to be tested 00 is locked and powered on, the three rotate coaxially. After the test is completed, the cylinder of the drive assembly 3 tightens the moving part 31 again. At this time, the installation part 11 is released, and the cylinder on the fixed assembly 5 pulls the object to be tested 00 away from the test assembly 6. The mechanical arm picks up the object to be tested 00 that has been tested, replaces it with a new object to be tested 00, and repeats the above installation, testing, and disassembly steps. The entire test time is about 50 seconds, which saves about 40 seconds compared to manual installation and disassembly, shortens the test cycle, unifies the test method, improves the daily motor load operation performance, noise, and vibration test experiment completion rate, and improves the test efficiency by about 44%.

[0044] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0045] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments, and this embodiment will not be described in detail here.

[0046] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0047] In the above embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0048] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A locking structure, characterized in that: include: A clamping assembly (1), the clamping assembly (1) having a mounting portion (11), the mounting portion (11) being used for being detachably connected to an object to be tested (00); A locking assembly (2), the locking assembly (2) comprising a locking portion (21), the locking portion (21) being used to connect with the mounting portion (11) so as to fix the mounting portion (11) and the object to be tested (00); The driving assembly (3) comprises a movable portion (31) which is movably arranged, and the movable portion (31) is used to drive the locking portion (21) to move, so that the locking portion (21) is connected to the mounting portion (11); the clamping assembly (1) and the movable portion (31) are relatively rotatably arranged.

2. The locking structure according to claim 1, characterized in that: The driving assembly (3) comprises a driving portion (32), on which a driving rod (33) is telescopically provided, and the telescopic direction of the driving rod (33) is the same as the extending direction of the clamping assembly (1); the driving rod (33) is connected to the moving portion (31), and the driving rod (33) is used to drive the moving portion (31) to move.

3. The locking structure according to claim 1, characterized in that: The locking assembly (2) comprises: A mounting plate (22), the mounting plate (22) being used to mount the clamping assembly (1), the mounting plate (22) and the driving assembly (3) being rotatably arranged relative to each other; An elastic member (23), one end of the elastic member (23) is connected to the mounting plate (22), and the other end of the elastic member (23) is connected to the locking portion (21).

4. The locking structure according to claim 3, characterized in that: The clamping assembly (1) comprises a connecting portion (12), one end of the connecting portion (12) is connected to the mounting plate (22), and one end of the connecting portion (12) away from the mounting plate (22) is connected to the mounting portion (11); the elastic member (23) is sleeved on the outside of the connecting portion (12).

5. The locking structure according to claim 4, characterized in that: The mounting portion (11) has a first mounting channel (111) therein, and the connecting portion (12) has a second mounting channel (121) therein, the first mounting channel (111) is in communication with the second mounting channel (121), and the axis of the first mounting channel (111) coincides with the axis of the second mounting channel (121).

6. The locking structure according to claim 1, characterized in that: The mounting portion (11) is a trumpet-shaped structure.

7. The locking structure according to claim 1, characterized in that: The mounting portion (11) is provided with an adjustment groove (112), and the adjustment groove (112) is arranged through the mounting portion (11).

8. The locking structure according to claim 1, characterized in that: There are multiple drive assemblies (3), and the multiple drive assemblies (3) are arranged around the locking portion (21).

9. A motor testing device, characterized in that: include: Bottom plate (4); The locking structure according to any one of claims 1 to 8; A fixing component (5), the fixing component (5) being arranged on the bottom plate (4), and the fixing component (5) being used to fix the object to be tested (00); A test component (6), the test component (6) and the fixing component (5) are arranged on the base plate (4) at a distance, the locking structure is arranged on a side of the test component (6) close to the fixing component (5), and the test component (6) is used to test the object to be tested (00).

10. The motor testing device according to claim 9, characterized in that: The driving assembly (3) comprises a first driving assembly (34) and a second driving assembly (35), wherein the first driving assembly (34) and the second driving assembly (35) are respectively located on opposite sides of the clamping assembly (1), and the moving part (31) comprises a first moving part (311) arranged on the first driving assembly (34) and a second moving part (312) arranged on the second driving assembly (35); the first moving part (311) and the second moving part (312) are arranged at intervals to form an avoidance space (313) between the first moving part (311) and the second moving part (312) for avoiding the clamping assembly (1).

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