CN213364096U

CN213364096U - Motor power testing device

Info

Publication number: CN213364096U
Application number: CN202022216077.6U
Authority: CN
Inventors: 陈祎; 俞皓
Original assignee: Shanghai Pudong Zhangjiang Electromotor Co ltd
Current assignee: Shanghai Pudong Zhangjiang Electromotor Co ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-06-04
Anticipated expiration: 2030-09-30

Abstract

The application relates to a motor power testing device, it is including examining test table, generator and being used for connecting the generator and the connector of the motor shaft that awaits measuring, it is provided with and is used for control to examine test table downside examine the lifting unit of test table height. The application has the effects of high applicability, convenience in operation and high adjustment precision.

Description

Motor power testing device

Technical Field

The application relates to the technical field of motor detection equipment, in particular to a motor power testing device.

Background

The power test after the motor is produced is a necessary working procedure, and the power test of loading the motor can test whether the power of the generator reaches a rated value, so that whether the produced motor is qualified or not and whether the motor is scrapped or not can be judged.

The existing Chinese patent with publication number CN207502089U discloses a detection device for recovering power of a servo motor, which comprises a detection platform; the generator is arranged at the left end of the detection platform, and a generator leading-out end of the generator is used for being connected with a resistive load; the supporting platform is fixed at the right end of the detection platform through a plurality of supporting rods; the device comprises a torque rotating speed measuring mechanism, wherein the torque rotating speed measuring mechanism comprises a torque rotating speed measuring instrument, a tension wheel, a first synchronous belt wheel and a second synchronous belt wheel.

The test process and principle of the scheme are as follows: the power generated after the servo motor to be tested is externally connected with a power supply is P1; the output shaft of the servo motor to be measured is coaxially fixed with the torque and rotating speed measuring mechanism, and the torque and rotating speed measuring mechanism is coaxially fixed with the input rotating shaft of the generator; the output shaft of the torque and rotation speed measuring mechanism drives the input rotating shaft of the generator to rotate, the generator can generate power, and the power output by the generator is P2; and (4) comparing the ratio of P1 to P2 with a preset value, if the ratio is within an error allowable range, the motor is qualified, otherwise, the motor is not qualified.

However, when the motor model is changed, the height of the motor rotating shaft is changed, the motor rotating shaft is not coaxial with the torque and rotating speed measuring mechanism any more, various corresponding auxiliary cushion blocks are needed to be adopted for realization, or detection equipment is replaced, the manual labor intensity is greatly increased, and improvement parts exist.

SUMMERY OF THE UTILITY MODEL

In order to improve when changing the motor model, the height at motor shaft place can change, and motor shaft no longer is coaxial with moment of torsion rotational speed measuring mechanism, influences the defect that motor power detected, this application provides a motor power testing arrangement.

The application provides a motor power testing arrangement adopts following technical scheme:

the utility model provides a motor power testing arrangement, is including examining test table, generator and being used for connecting the generator and the connector of the motor shaft that awaits measuring, it is provided with and is used for control to examine test table downside examine the lifting unit of test table height.

Through adopting above-mentioned technical scheme, adjust the test table height through lifting unit, help realizing the altitude mixture control to the motor that awaits measuring of different models, help improving motor power testing arrangement's suitability, the artificial working strength that has significantly reduced.

Preferably, the lifting assembly comprises a scissor lift mechanism and a drive unit; the scissor-fork type lifting mechanism comprises a plurality of fixed foot seats and supporting components, the fixed foot seats are fixed on the ground, the supporting components comprise first supporting rods and second supporting rods, the first supporting rods and the second supporting rods are arranged in a cross hinged mode, the two groups of supporting components are arranged, the lower ends of the first supporting rods are hinged to the fixed foot seats, the upper ends of the first supporting rods are connected to the side wall of the detection table in a sliding mode, and the upper ends of the second supporting rods are hinged to the side wall of the detection table; the drive unit comprises a linear sliding table, the linear sliding table comprises a lead screw, a sliding block and a hand wheel, a mounting frame is fixed on the ground, the lead screw is rotatably arranged on the mounting frame, the sliding block is in threaded connection with the lead screw, the lower end of the second supporting rod is hinged to the sliding block, and the hand wheel is fixed at one end of the sliding block, which is deviated from the lead screw.

Through adopting above-mentioned technical scheme, when rotating the hand wheel, the lead screw takes place to rotate, and the slider on the lead screw slides on the lead screw, and the lower extreme and the slider of second bracing piece articulate, and the slider drives the second bracing piece and slides, because first bracing piece and second bracing piece are alternately articulated setting, and first bracing piece upper end sliding connection be in examine on the lateral wall of test table, first bracing piece slides and carries out the lift operation to examining the test table, very big has made things convenient for the staff to adjust the height that examines the test table.

Preferably, ground with still vertically be provided with spacing guide bar between the test table, the last spacing hole of having seted up of test table, spacing guide bar embedding spacing hole, just test table with spacing guide bar sliding fit.

Through adopting above-mentioned technical scheme, by examining test table and spacing guide bar cooperation of sliding, help improving the stability of examining in the test table lift operation.

Preferably, a supporting plate is vertically arranged on one side, close to the motor, of the detection table, a guide groove is formed in the supporting plate, and the output shaft of the motor penetrates through the guide groove.

Through adopting above-mentioned technical scheme, wear to establish the guide way by the output shaft of motor, help protecting the motor output shaft to help improving the stability in the motor power detection operation that awaits measuring.

Preferably, be provided with the clamp in the backup pad, the shaping has the joint groove on the clamp, the motor embedding the joint inslot, just the both ends of clamp are all through the bolt fastening on the workstation.

Through adopting above-mentioned technical scheme, by the fashioned joint inslot on the motor embedding clamp, help further improving the stability in the motor power detection operation that awaits measuring.

Preferably, the limiting guide rod is provided with scale marks.

Through adopting above-mentioned technical scheme, set up the scale mark with the help of on spacing guide bar, help improving the staff to detecting platform height adjustment's accuracy nature.

Preferably, the connector is a dynamic motor torque sensor.

By adopting the technical scheme, the dynamic motor torque sensor is adopted to connect the motor to be detected and the generator, so that the stability and the accuracy of the motor power detection operation are improved.

Preferably, it is fixed with a supporting bench to examine test table, dynamic motor torque sensor is close to the vertical fixed slot of having seted up in one side of supporting bench, be provided with fixing bolt on the supporting bench, the fixing bolt embedding the fixed slot, just locking nut is worn to be equipped with by the screw thread on the fixing bolt, just locking nut will dynamic motor torque sensor locking is in examine test table is last.

Through adopting above-mentioned technical scheme, through can dismantle the fixing on a supporting bench with dynamic motor torque sensor, help making things convenient for the loading and unloading and the change operation of staff to dynamic motor torque sensor.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the height of the detection table is adjusted through the lifting assembly, so that the height adjustment of motors to be detected in different models is facilitated, the applicability of the motor power testing device is improved, and the manual working strength is greatly reduced.

2. The guide way is worn to establish through the output shaft with the motor to and the motor embedding clamp goes up the fashioned joint inslot, improved the stability in the motor detection operation greatly.

3. By means of setting up the scale mark on spacing guide bar to and use manual the operation of examining test table height adjustment, help improving the staff to examining test table height adjustment's accuracy nature.

Drawings

Fig. 1 is a schematic axial view mainly showing the overall structure of the motor power testing device according to the present embodiment.

Fig. 2 is an enlarged schematic view of a portion a of fig. 1, and mainly shows the structures of a driving unit and a lifting assembly.

Fig. 3 is an enlarged schematic view of a portion B of fig. 1, and mainly shows a structure in which a connector is connected to a support table.

Description of reference numerals: 1. a detection table; 11. a support plate; 111. clamping a hoop; 12. a support table; 121. fixing the bolt; 122. locking the nut; 2. a lifting assembly; 21. a scissor lift mechanism; 211. a fixed foot seat; 212. a support assembly; 2121. a first support bar; 2122. a second support bar; 22. a drive unit; 221. a linear sliding table; 222. a screw rod; 223. a slider; 224. a hand wheel; 3. a generator; 4. a connector; 41. fixing grooves; 5. a base; 51. a mounting frame; 52. a limiting guide rod; 521. scale lines; 6. a first coupling; 7. a second coupling.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a motor power testing device. Referring to fig. 1 and 2, the motor power testing device includes a testing table 1, a generator 3 and a connector 4, wherein a lifting assembly 2 is arranged at the lower side of the testing table 1, and the lifting assembly 2 includes a scissor-type lifting mechanism 21 and a driving unit 22.

In this embodiment, the connector 4 employs a dynamic motor torque sensor. A first coupling 6 is coaxially arranged between the output shaft of the motor and the torsion shaft of the dynamic motor torque sensor, and a second coupling 7 is coaxially arranged between the output rotating shaft of the dynamic motor torque sensor and the rotating shaft of the generator 3.

Referring to fig. 1 and 2, scissor lift 21 includes a plurality of fixing bases 211 and a support assembly 212, the base 5 is fixed on the ground, and the fixing bases 211 are fixed on the base 5. The support assembly 212 includes a first support rod 2121 and a second support rod 2122, the first support rod 2121 and the second support rod 2122 are hinged to each other, and two sets of the support assembly 212 are provided. The lower ends of the first support rods 2121 are all hinged to the fixed foot base 211, the upper ends of the first support rods 2121 are slidably connected to the side wall of the detection table 1, and the upper ends of the second support rods 2122 are hinged to the side wall of the detection table 1.

Referring to fig. 2 and 3, the driving unit 22 includes a linear sliding table 221, the linear sliding table 221 includes a screw rod 222, a slider 223 and a hand wheel 224, the base 5 is fixed with the mounting bracket 51, the screw rod 222 is rotatably disposed on the mounting bracket 51, the slider 223 is in threaded connection with the screw rod 222, the lower end of the second support rod 2122 is hinged to the slider 223, and the hand wheel 224 is fixed at one end of the screw rod 222 away from the slider 223. The hand wheel 224 is rotated, the linear sliding table 221 drives the first support rod 2121 to slide, and since the first support rod 2121 is hinged to the second support rod 2122, the second support rod 2122 slides, so as to realize the lifting operation of the detection table 1.

Referring to fig. 1 and 2, a limiting guide rod 52 is vertically arranged between the base 5 and the detection table 1, a limiting hole is formed in the detection table 1, the limiting guide rod 52 is embedded into the limiting hole, and the detection table 1 is in sliding fit with the limiting guide rod 52. One side of the detection table 1 close to the motor is vertically provided with a supporting plate 11, a guide groove is formed in the supporting plate 11, and the output shaft of the motor penetrates through the guide groove. Be provided with clamp 111 in the backup pad 11, the shaping has the joint groove on the clamp 111, and the motor embedding joint inslot, and the both ends of clamp 111 all pass through the bolt fastening on the workstation.

Referring to fig. 2, a supporting table 12 is fixed on the detection table 1, a fixing groove 41 is vertically formed in one side, close to the supporting table 12, of the dynamic motor torque sensor, a fixing bolt 121 is arranged on the supporting table 12, the fixing bolt 121 is embedded into the fixing groove 41, a locking nut 122 is arranged on the fixing bolt 121 in a threaded penetrating mode, and the dynamic motor torque sensor is locked on the detection table 1 through the locking nut 122.

The implementation principle of the motor power testing device in the embodiment of the application is as follows: in application, a worker firstly fixes the dynamic motor torque sensor and the generator 3 on the detection table 1; then, the staff connects the output rotating shaft of the dynamic motor torque sensor with the rotating shaft of the generator 3 through a second coupling 7; then, the worker rotates the hand wheel 224, the linear sliding table 221 drives the first support rod 2121 to slide, and the second support rod 2122 slides due to the fact that the first support rod 2121 is hinged to the second support rod 2122, so that the lifting operation of the detection table 1 is realized; when a torsion shaft of a dynamic motor torque sensor on the detection table 1 is lifted to be coaxial with an output shaft of a motor to be detected, the torsion shaft of the dynamic motor torque sensor is connected with the output shaft of the motor by using a first coupler 6; and after the installation operation is finished, the worker performs the power detection operation of the motor to be detected.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A motor power testing device comprises a detection platform (1), a generator (3) and a connector (4) for connecting the generator (3) and a rotating shaft of a motor to be tested, and is characterized in that a lifting assembly (2) for controlling the height of the detection platform (1) is arranged on the lower side of the detection platform (1);

the lifting assembly (2) comprises a scissor type lifting mechanism (21) and a driving unit (22);

the scissor type lifting mechanism (21) comprises a plurality of fixed foot seats (211) and a plurality of supporting assemblies (212), the fixed foot seats (211) are fixed on the ground, each supporting assembly (212) comprises a first supporting rod (2121) and a second supporting rod (2122), the first supporting rods (2121) and the second supporting rods (2122) are arranged in a crossed hinged mode, the supporting assemblies (212) are arranged in two groups, the lower ends of the first supporting rods (2121) are hinged to the fixed foot seats (211), the upper ends of the first supporting rods (2121) are connected to the side wall of the detection table (1) in a sliding mode, and the upper ends of the second supporting rods (2122) are hinged to the side wall of the detection table (1);

drive unit (22) include sharp slip table (221), sharp slip table (221) includes lead screw (222), slider (223) and hand wheel (224), is fixed with mounting bracket (51) subaerially, lead screw (222) rotate to set up on mounting bracket (51), slider (223) with threaded connection on lead screw (222), the lower extreme and slider (223) of second bracing piece (2122) are articulated, hand wheel (224) are fixed lead screw (222) deviate from the one end of slider (223).

2. A motor power test device as claimed in claim 1, wherein: ground with it still vertically is provided with spacing guide bar (52) to examine between platform (1), examine and seted up spacing hole on platform (1), spacing guide bar (52) embedding spacing hole, just examine platform (1) with spacing guide bar (52) cooperation of sliding.

3. A motor power test device as claimed in claim 1, wherein: one side, close to the motor, of the detection table (1) is vertically provided with a supporting plate (11), a guide groove is formed in the supporting plate (11), and an output shaft of the motor penetrates through the guide groove.

4. A motor power test device as claimed in claim 3, wherein: be provided with clamp (111) on backup pad (11), the shaping has the joint groove on clamp (111), the motor embedding the joint inslot, just the both ends of clamp (111) are all through the bolt fastening examine on the test table (1).

5. A motor power test device as claimed in claim 2, wherein: the limiting guide rod (52) is provided with scale marks (521).

6. A motor power test device as claimed in claim 1, wherein: the connector (4) is a dynamic motor torque sensor.

7. The motor power testing device according to claim 6, wherein a supporting table (12) is fixed on the detection table (1), a fixing groove (41) is vertically formed in one side, close to the supporting table (12), of the dynamic motor torque sensor, a fixing bolt (121) is arranged on the supporting table (12), the fixing bolt (121) is embedded into the fixing groove (41), a locking nut (122) is arranged on the fixing bolt (121) in a penetrating mode through threads, and the dynamic motor torque sensor is locked on the detection table (1) through the locking nut (122).