CN219016521U

CN219016521U - Test device for energy feedback system of variable frequency motor

Info

Publication number: CN219016521U
Application number: CN202222614794.3U
Authority: CN
Inventors: 郎向荣; 王江峰; 朱庆; 路国卫
Original assignee: HANGZHOU WEIHENG TECHNOLOGY CO LTD
Current assignee: HANGZHOU WEIHENG TECHNOLOGY CO LTD
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-05-12
Anticipated expiration: 2032-09-30

Abstract

The utility model belongs to the technical field of motor detection, in particular to a testing device of an energy feedback system of a variable frequency motor, which comprises a testing base and a clamping mechanism arranged above the testing base, wherein the clamping mechanism comprises a clamping assembly, a connecting assembly and a compacting assembly; the clamping assembly comprises a clamping base, a clamping screw rod, a clamping knob, a connecting sliding block, a connecting rod and a connecting frame, wherein the clamping base is arranged above the testing base, the connecting sliding block slides through the connecting rod to drive the connecting frame to slide along the inner wall of the clamping base, when the pressing plate at the top end of the connecting frame is attached to the outer wall of a motor to be tested, the pressing plate moves to drive a connecting guide post to slide along the outer wall of a pressing guide groove, the connecting guide post slides to drive a lifting pore plate to overcome the elasticity of a reset spring to slide along the outer wall of the pressing sliding rod, and meanwhile, the lifting pore plate drives the pressing plate to be attached to the outer wall of the motor to be tested tightly, so that the quick fixing operation of the motor to be tested is realized.

Description

Test device for energy feedback system of variable frequency motor

Technical Field

The utility model relates to a testing device for an energy feedback system of a variable frequency motor.

Background

When the variable frequency motor detects, a motor dynamometer is needed, the motor dynamometer is a device for measuring mechanical torque, the motor dynamometer is a direct current generator with a stator capable of rotating, when the torque is input on a rotating shaft, a movable stator of the motor dynamometer deflects due to the counter torque, the torque is conveniently and accurately measured by utilizing a balance and a lever arm arranged on the stator, an energy feedback system is needed to be added when the variable frequency motor detects, and the energy feedback system has the function of effectively returning regenerated electric energy of the motor to an alternating current power grid for other peripheral electric equipment.

However, the existing variable frequency motor energy feedback system testing device has the problem that the installation of a motor to be tested is complex when the variable frequency motor energy feedback system testing device is used, the installation time of the motor to be tested is too long, and the problem that the existing variable frequency motor energy feedback system testing device cannot center rapidly when the variable frequency motor energy feedback system testing device is used, so that damage is easy to occur between the motor to be tested and a coupler, and therefore the variable frequency motor energy feedback system testing device is provided.

Disclosure of Invention

The utility model provides a testing device for an energy feedback system of a variable frequency motor, which solves the problems that a motor to be tested is complex to install and the motor to be tested cannot be centered rapidly in the prior art.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the testing device of the energy feedback system of the variable frequency motor comprises a testing base and a clamping mechanism arranged above the testing base, wherein the clamping mechanism comprises a clamping assembly, a connecting assembly and a compacting assembly;

the clamping assembly comprises a clamping base, a clamping screw rod, a clamping knob, a connecting sliding block, a connecting rod and a connecting frame, wherein the clamping base is arranged above the testing base, the inner wall of the clamping base penetrates through the clamping screw rod, one end of the clamping screw rod is fixedly connected with the clamping knob, the outer wall of the clamping screw rod is in threaded connection with the connecting sliding block, the side wall of the connecting sliding block is in threaded connection with the connecting rod, and one end of the connecting rod is in threaded connection with the connecting frame which is in sliding connection with the inner wall of the clamping base;

the connecting assembly comprises a pressing slide bar, a lifting pore plate and a reset spring, wherein the pressing slide bar is fixedly connected to the inner wall of the connecting frame, the lifting pore plate is slidably connected to the outer wall of the pressing slide bar, and the reset spring is fixedly connected to the bottom end of the lifting pore plate;

the pressing component comprises a connecting guide post, a pressing guide groove, a pressing plate and a motor to be tested, wherein the connecting guide post is movably connected to the inner wall of the lifting pore plate, the pressing guide groove is formed in the connecting part of the connecting guide post and the connecting frame, the top end of the lifting pore plate extends to the upper part of the clamping base and is fixedly connected with the pressing plate, and the side wall of the pressing plate is tightly attached to the motor to be tested.

In order to realize variable frequency motor and feed ability test operation, preferably, the top sliding connection of test base has a sliding base, the inner wall of sliding base runs through there is horizontal screw rod, the one end fixedly connected with horizontal knob of horizontal screw rod, the outer wall threaded connection of horizontal screw rod has a lift base, the inner wall of lift base runs through there is the lift screw rod with clamping base bottom threaded connection, the top fixedly connected with lift knob of lift screw rod, the shaft coupling is installed to the output of motor that awaits measuring, torque tester is installed to the one end of shaft coupling, torque tester's one end is provided with the pivot, the one end fixedly connected with and the load motor of test base top fixed connection of pivot, the outer wall fixedly connected with first gear of pivot, the meshing face meshing of first gear has the second gear, the outer wall fixedly connected with and the generator of test base top fixed connection of second gear.

In order to realize the control operation of the synchronous motion of the two groups of connecting rods, the stable fixing operation of the motor to be tested is facilitated, and preferably, the connecting rods are provided with two groups, and the position relationship of the two groups of connecting rods is symmetrical about the connecting sliding blocks.

In order to realize the control operation of the sliding of the connecting frame, the connecting frame preferably forms a sliding structure with the clamping base through the connecting sliding block and the connecting rod.

In order to realize the sliding control operation of the connecting guide post, the motor to be tested is conveniently pressed, and preferably, the connecting guide post forms a sliding structure with the pressing guide slot through the pressing plate and the motor to be tested.

In order to realize the rapid fixing operation of the motor to be tested, preferably, the lifting pore plate forms a sliding structure with the compacting slide rod through the connecting guide post and the compacting plate, and the compacting plate forms a compacting structure with the motor to be tested through the lifting pore plate.

In order to realize quick centering operation of the motor to be tested and the coupler, preferably, the lifting base forms a sliding structure with the sliding base through the transverse screw rod and the transverse knob, and the clamping base forms a lifting structure with the lifting base through the lifting screw rod and the lifting knob.

The utility model has the following beneficial effects:

1. through setting up the pressure strip, the connecting slider slides and drives the inner wall slip of connecting frame along pressing from both sides tight base through the connecting rod, when the pressure strip on connecting frame top is with the motor outer wall that awaits measuring mutually, the pressure strip motion drives the connecting guide pillar and compresses tightly the outer wall slip of guide slot, the connecting guide pillar slides and drives the lifting orifice plate and overcome reset spring's elasticity and slide along compressing the outer wall of slide bar, simultaneously, lifting orifice plate drive pressure strip and the outer wall of motor that awaits measuring closely laminate, realize the quick fixed operation of treating the motor that awaits measuring;

2. through setting up horizontal screw rod and lifting screw rod, horizontal knob rotates and drives lifting base through horizontal screw rod and slide along the outer wall of slide base, treats that the motor is surveyed and carry out horizontal positioning operation, then, lifting knob rotates and drives through lifting screw rod and press from both sides the vertical slip of outer wall along lifting base of tight base, realizes treating that the motor is surveyed and the quick centering operation of shaft coupling.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a testing device of a frequency conversion motor energy feedback system;

fig. 2 is a schematic structural diagram of a sliding base, a lifting base and a clamping base of a testing device of a frequency conversion motor energy feedback system;

FIG. 3 is a schematic diagram of a cross-sectional structure of a clamping base of a testing device of a variable frequency motor energy feedback system;

fig. 4 is a schematic diagram of a cross-sectional structure of a connection frame of a testing device for a feed system of a variable frequency motor according to the present utility model.

In the figure: 1. a test base; 2. clamping a base; 3. clamping a screw; 4. a clamping knob; 5. the connection is smooth; 6. a connecting rod; 7. a connection frame; 8. compressing the slide bar; 9. lifting pore plates; 10. a return spring; 11. connecting guide posts; 12. compressing the guide groove; 13. a compacting plate; 14. a motor to be tested; 15. a sliding base; 16. a transverse screw; 17. a lateral knob; 18. lifting a base; 19. lifting screw rods; 20. a lifting knob; 21. a coupling; 22. a torque tester; 23. a rotating shaft; 24. a load motor; 25. a first gear; 26. a second gear; 27. and (5) a generator.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Example 1

Referring to fig. 1-3, a testing device for a variable frequency motor energy feedback system comprises a testing base 1 and a clamping mechanism arranged above the testing base 1, wherein the clamping mechanism comprises a clamping assembly, a connecting assembly and a compacting assembly;

the clamping assembly comprises a clamping base 2, a clamping screw 3, a clamping knob 4, a connecting slide block 5, a connecting rod 6 and a connecting frame 7, wherein the clamping base 2 is arranged above the test base 1, the inner wall of the clamping base 2 penetrates through the clamping screw 3, one end of the clamping screw 3 is fixedly connected with the clamping knob 4, the outer wall of the clamping screw 3 is in threaded connection with the connecting slide block 5, the side wall of the connecting slide block 5 is in threaded connection with the connecting rod 6, and one end of the connecting rod 6 is in threaded connection with the connecting frame 7 which is in sliding connection with the inner wall of the clamping base 2;

the connecting assembly comprises a pressing slide bar 8, a lifting pore plate 9 and a reset spring 10, the inner wall of the connecting frame 7 is fixedly connected with the pressing slide bar 8, the outer wall of the pressing slide bar 8 is slidably connected with the lifting pore plate 9, and the bottom end of the lifting pore plate 9 is fixedly connected with the reset spring 10;

the compressing assembly comprises a connecting guide column 11, a compressing guide groove 12, a compressing plate 13 and a motor 14 to be tested, the connecting guide column 11 is movably connected to the inner wall of the lifting pore plate 9, the compressing guide groove 12 is formed in the connecting position of the connecting guide column 11 and the connecting frame 7, the compressing plate 13 is fixedly connected to the upper portion of the clamping base 2, and the side wall of the compressing plate 13 is tightly attached to the motor 14 to be tested.

Further, the connecting rods 6 are provided with two groups, the position relation of the two groups of connecting rods 6 is symmetrical with respect to the connecting slide block 5, and the connecting slide block 5 is facilitated to slide to drive the two groups of connecting rods 6 to synchronously move through the two groups of connecting rods 6, so that the control operation of the two groups of connecting rods 6 to synchronously move is realized, and the stable fixing operation of the motor 14 to be tested is facilitated.

Further, the connecting frame 7 forms a sliding structure with the clamping base 2 through the connecting sliding block 5 and the connecting rod 6, so that the connecting sliding block 5 can slide to drive the connecting frame 7 to slide along the inner wall of the clamping base 2 through the connecting rod 6, and the sliding control operation of the connecting frame 7 is realized.

Further, the connecting guide post 11 forms a sliding structure with the compressing guide slot 12 through the compressing plate 13 and the motor 14 to be tested, so that when the compressing plate 13 at the top end of the connecting frame 7 is attached to the outer wall of the motor 14 to be tested, the compressing plate 13 moves to drive the connecting guide post 11 to slide along the outer wall of the compressing guide slot 12, the sliding control operation of the connecting guide post 11 is realized, and the compressing operation of the motor 14 to be tested is facilitated.

Further, the lifting pore plate 9 forms a sliding structure through the connecting guide post 11, the pressing plate 13 and the pressing sliding rod 8, and the pressing plate 13 forms a pressing structure through the lifting pore plate 9 and the motor 14 to be tested, so that the connecting guide post 11 is beneficial to sliding to drive the lifting pore plate 9 to overcome the elastic force of the reset spring 10 and slide along the outer wall of the pressing sliding rod 8, and meanwhile, the lifting pore plate 9 drives the pressing plate 13 to be tightly attached to the outer wall of the motor 14 to be tested, so that the rapid fixing operation of the motor 14 to be tested is realized.

Example two

Referring to fig. 1, 2 and 4, in a first comparative example, as another embodiment of the present utility model, a sliding base 15 is slidably connected to the top end of a test base 1, a transverse screw 16 is penetrated through the inner wall of the sliding base 15, one end of the transverse screw 16 is fixedly connected with a transverse knob 17, the outer wall of the transverse screw 16 is in threaded connection with a lifting base 18, the inner wall of the lifting base 18 is penetrated through a lifting screw 19 in threaded connection with the bottom end of a clamping base 2, the top end of the lifting screw 19 is fixedly connected with a lifting knob 20, the output end of a motor 14 to be tested is provided with a coupling 21, one end of the coupling 21 is provided with a torque tester 22, one end of the torque tester 22 is provided with a rotating shaft 23, one end of the rotating shaft 23 is fixedly connected with a load motor 24 fixedly connected with the top end of the test base 1, the outer wall of the rotating shaft 23 is fixedly connected with a first gear 25, the meshing surface of the first gear 25 is meshed with a second gear 26, the outer wall of the second gear 26 is fixedly connected with a generator 27 fixedly connected with the top end of the test base 1, the transverse knob 17 is beneficial to a tester to rotate, the transverse knob 17 rotates to drive the lifting base 18 to slide along the outer wall of the sliding base 15 through the transverse screw 16, the motor 14 to be tested is transversely positioned and operated, then the tester rotates the lifting knob 20, the lifting knob 20 rotates to drive the clamping base 2 to vertically slide along the outer wall of the lifting base 18 through the lifting screw 19, the rapid centering operation of the motor 14 to be tested and the coupler 21 is realized, then the load motor 24 works to drive the rotating shaft 23 to rotate, the rotating shaft 23 rotates to drive the motor 14 to be tested to synchronously rotate, the torque of the motor 14 to be tested is detected through the torque tester 22, and at the same time, the rotation of the rotating shaft 23 drives the generator 27 to work through the meshing of the first gear 25 and the second gear 26, and the detected electric power is converted into electric energy to be transmitted to a power grid, so that the energy feedback test operation of the variable frequency motor is realized.

Further, the lifting base 18 forms a sliding structure with the sliding base 15 through the transverse screw 16 and the transverse knob 17, the clamping base 2 forms a lifting structure with the lifting base 18 through the lifting screw 19 and the lifting knob 20, the transverse knob 17 rotates to drive the lifting base 18 to slide along the outer wall of the sliding base 15 through the transverse screw 16, the motor 14 to be tested is transversely positioned, then the lifting knob 20 rotates to drive the clamping base 2 to slide vertically along the outer wall of the lifting base 18 through the lifting screw 19, and the rapid centering operation of the motor 14 to be tested and the coupler 21 is realized.

Working principle: when the device is used, firstly, quick fixing operation is carried out on the motor 14 to be tested, in the clamping base 2, a tester rotates the clamping knob 4, the clamping knob 4 rotates to drive the connecting sliding block 5 to slide along the inner wall of the clamping base 2 through the clamping screw 3, the connecting sliding block 5 slides to drive two groups of connecting rods 6 to synchronously move, so that the connecting sliding block 5 slides to drive the connecting frame 7 to slide along the inner wall of the clamping base 2 through the connecting rods 6, when the compressing plate 13 at the top end of the connecting frame 7 is attached to the outer wall of the motor 14 to be tested, the compressing plate 13 moves to drive the connecting guide pillar 11 to slide along the outer wall of the compressing guide groove 12, the connecting guide pillar 11 slides to drive the lifting pore plate 9 to overcome the elastic force of the reset spring 10 and slide along the outer wall of the compressing sliding rod 8, and meanwhile, the lifting pore plate 9 drives the compressing plate 13 to be tightly attached to the outer wall of the motor 14 to be tested, so that quick fixing operation on the motor 14 to be tested is realized.

Then, the motor 14 to be tested and the coupler 21 are subjected to centering connection operation, a tester rotates the transverse knob 17, the transverse knob 17 rotates to drive the lifting base 18 to slide along the outer wall of the sliding base 15 through the transverse screw 16, the motor 14 to be tested is subjected to transverse positioning operation, then, the tester rotates the lifting knob 20, and the lifting knob 20 rotates to drive the clamping base 2 to vertically slide along the outer wall of the lifting base 18 through the lifting screw 19, so that quick centering operation of the motor 14 to be tested and the coupler 21 is realized.

Finally, the load motor 24 works to drive the rotating shaft 23 to rotate, the rotating shaft 23 rotates to drive the motor 14 to be tested to synchronously rotate, the torque tester 22 detects the rotating torque of the motor 14 to be tested, meanwhile, the rotating shaft 23 rotates to drive the generator 27 to work through the meshing of the first gear 25 and the second gear 26, detected electric power is converted into electric energy to be transmitted to a power grid, and the energy feedback test operation of the variable frequency motor is realized.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a variable frequency motor energy feed system testing arrangement, includes test base (1) and sets up the clamping mechanism in test base (1) top, its characterized in that: the clamping mechanism comprises a clamping assembly, a connecting assembly and a compacting assembly;

the clamping assembly comprises a clamping base (2), a clamping screw (3), a clamping knob (4), a connecting sliding block (5), a connecting rod (6) and a connecting frame (7), wherein the clamping base (2) is arranged above the testing base (1), the clamping screw (3) penetrates through the inner wall of the clamping base (2), one end of the clamping screw (3) is fixedly connected with the clamping knob (4), the outer wall of the clamping screw (3) is in threaded connection with the connecting sliding block (5), the connecting rod (6) is screwed on the side wall of the connecting sliding block (5), and the connecting frame (7) in sliding connection with the inner wall of the clamping base (2) is screwed on one end of the connecting rod (6).

The connecting assembly comprises a pressing slide bar (8), a lifting pore plate (9) and a reset spring (10), wherein the pressing slide bar (8) is fixedly connected with the inner wall of the connecting frame (7), the lifting pore plate (9) is slidably connected with the outer wall of the pressing slide bar (8), and the reset spring (10) is fixedly connected with the bottom end of the lifting pore plate (9);

the pressing assembly comprises a connecting guide pillar (11), a pressing guide groove (12), a pressing plate (13) and a motor (14) to be tested, wherein the connecting guide pillar (11) is movably connected to the inner wall of the lifting pore plate (9), the pressing guide groove (12) is formed in the connecting position of the connecting guide pillar (11) and the connecting frame (7), the pressing plate (13) is fixedly connected to the top of the lifting pore plate (9) extending to the clamping base (2), and the motor (14) to be tested is tightly attached to the side wall of the pressing plate (13).

2. The variable frequency motor energy feedback system testing device according to claim 1, wherein: the utility model provides a test base, top sliding connection of test base (1) has slide base (15), the inner wall of slide base (15) runs through there is horizontal screw rod (16), the one end fixedly connected with horizontal knob (17) of horizontal screw rod (16), the outer wall threaded connection of horizontal screw rod (16) has lift base (18), the inner wall of lift base (18) runs through have with clamp base (2) bottom threaded connection's lift screw rod (19), the top fixedly connected with lift knob (20) of lift screw rod (19), shaft coupling (21) are installed to the output of motor (14) to be tested, torque tester (22) are installed to the one end of shaft coupling (21), the one end of torque tester (22) is provided with pivot (23), the one end fixedly connected with of pivot (23) with test base (1) top fixedly connected with load motor (24), the outer wall fixedly connected with first gear (25) of pivot (23), the engagement face meshing of first gear (25) has second gear (26), the generator (27) of outer wall fixedly connected with test base (1) of second gear (26).

3. The variable frequency motor energy feedback system testing device according to claim 1, wherein: the connecting rods (6) are provided with two groups, and the position relation of the two groups of connecting rods (6) is symmetrical with respect to the connecting sliding blocks (5).

4. The variable frequency motor energy feedback system testing device according to claim 1, wherein: the connecting frame (7) forms a sliding structure with the clamping base (2) through the connecting sliding block (5) and the connecting rod (6).

5. The variable frequency motor energy feedback system testing device according to claim 1, wherein: the connecting guide post (11) forms a sliding structure between the compressing plate (13), the motor (14) to be tested and the compressing guide groove (12).

6. The variable frequency motor energy feedback system testing device according to claim 1, wherein: the lifting pore plate (9) forms a sliding structure through the connecting guide post (11) and the pressing plate (13) and the pressing sliding rod (8), and the pressing plate (13) forms a pressing structure through the lifting pore plate (9) and the motor (14) to be tested.

7. The variable frequency motor energy feedback system testing device according to claim 2, wherein: the lifting base (18) forms a sliding structure with the sliding base (15) through a transverse screw (16) and a transverse knob (17), and the clamping base (2) forms a lifting structure with the lifting base (18) through a lifting screw (19) and a lifting knob (20).