CN109507584B

CN109507584B - Rapid motor detection method

Info

Publication number: CN109507584B
Application number: CN201811395214.8A
Authority: CN
Inventors: 杨勋; 赵根东; 王晓祥; 肖红利
Original assignee: Wuhan Hengxintai Oil Extraction Equipment Manufacture Co ltd
Current assignee: Wuhan Hengxintai Oil Extraction Equipment Manufacture Co ltd
Priority date: 2018-11-22
Filing date: 2018-11-22
Publication date: 2020-07-10
Anticipated expiration: 2038-11-22
Also published as: CN109507584A

Abstract

The invention relates to the technical field of motor detection equipment, in particular to a motor rapid detection method which can rapidly carry out running-in test and power detection on a unit motor. The steps include S1: fixing the unit motor to be tested in the vertical running-in frame, electrically connecting the unit motor to the program control host, and carrying out running-in test on the running performance of the unit motor in the vertical direction; s2: fixing the unit motor to be tested in the transverse running-in frame, electrically connecting the unit motor to the program control host, and carrying out running-in test on the running performance of the unit motor in the horizontal direction; s3: the unit motor which is subjected to running-in detection and qualified is placed in the unit vertical well, the inverted U-shaped support frame loaded with the magnetic powder brake and the torque sensor is moved to the position right above the unit vertical well and fixed, the unit motor is in transmission connection with the end portion of the unit motor, then the magnetic powder brake and the torque sensor are started through the program control host, and the running power of the unit motor is detected.

Description

Rapid motor detection method

Technical Field

The invention belongs to the technical field of motor detection equipment, and particularly relates to a motor rapid detection method.

Background

A plurality of single motors are arranged in the direct-drive permanent magnet synchronous submersible motor shell, the motors are sequentially arranged along the axial direction, and two adjacent single motor rotors are fixedly connected through a coaxial connector. Rapid standardized inspection of the units of the motor is particularly important in the production process. In the prior production process, the quality of the whole machine is directly influenced by the inaccuracy of unit motor detection and the inspection missing condition during mass production.

Disclosure of Invention

The invention aims to provide a motor rapid detection method which can rapidly carry out running-in test and power detection on a unit motor.

The technical purpose of the invention is realized by the following technical scheme:

a quick detection method for a motor comprises the following steps:

s1: fixing the unit motor to be tested in the vertical running-in frame, electrically connecting the unit motor to the program control host, and carrying out running-in test on the running performance of the unit motor in the vertical direction;

s2: fixing the unit motor to be tested in the transverse running-in frame, electrically connecting the unit motor to the program control host, and carrying out running-in test on the running performance of the unit motor in the horizontal direction;

s3: the unit motor which is subjected to running-in detection and qualified is placed in the unit vertical well, the inverted U-shaped support frame loaded with the magnetic powder brake and the torque sensor is moved to the position right above the unit vertical well and fixed, the unit motor is in transmission connection with the end portion of the unit motor, then the magnetic powder brake and the torque sensor are started through the program control host, and the running power of the unit motor is detected.

Further, in S3, after the unit motor is placed in the unit vertical well, the limiting plate is horizontally pushed out to surround the periphery of the unit motor; starting a driving motor to drive the screw to rotate, and driving the anti-slip mat to gradually move upwards by the circular truncated cone-shaped lantern ring along with the rotation of the screw; until the anti-skid pad is abutted against the limiting plate, the anti-skid pad gradually shrinks in the circular truncated cone-shaped lantern ring; finally, the inner wall of slipmat closely wraps up in the outer wall of unit motor, and the outer wall of slipmat closely surrounds with the inner wall of the round platform shape lantern ring, holds tightly unit motor, and under the restriction cooperation in round platform shape lantern ring both sides support arm and the groove of stepping down, the round platform shape lantern ring can't rotate at the horizontal direction to the realization is fixed to unit motor.

Further, S4 is added behind S3, after power detection is completed, the driving motor is started again and rotates reversely, the circular truncated cone-shaped lantern ring gradually moves downwards, and the holding force between the circular truncated cone-shaped lantern ring and the anti-skid mat is gradually reduced; the anti-slip mat gradually extends out of the circular truncated cone-shaped lantern ring and releases the holding of the unit motor.

Furthermore, the magnetic powder brake is connected with the torque sensor through a flexible connecting shaft.

Furthermore, the torque sensor is connected with the unit motor through a flexible connecting shaft.

Further, vertical running-in frame and/or horizontal running-in frame include a plurality of V type backup pad and with the clamp plate that V type backup pad cooperation was used, the unit motor passes through the clamp plate to be fixed in the V type backup pad.

Furthermore, the outer wall of the non-slip mat is provided with a sliding block, the inner wall of the circular truncated cone-shaped lantern ring is provided with a sliding groove matched with the sliding block along the bus direction, and the sliding block is embedded in the sliding groove in a sliding mode.

Furthermore, magnets with opposite magnetic poles are arranged at the bottom of the sliding block and the inner bottom surface of the sliding groove.

The invention has the beneficial effects that:

1. the detection system and the detection method designed by the invention are simple to operate, and can conveniently carry out running-in test and running power test on the unit motor. And the program-controlled host is utilized to apply exciting current to the magnetic powder brake so as to simulate the actual use working condition, apply load to the motor and improve the authenticity of the detection result. The temperature rise of the motor during operation without cooling, the temperature rise of the motor during operation with oil medium, the limit temperature rise of the motor and the like are detected through the temperature sensor. On the other hand, the flexible connecting shaft can ensure the concentricity between the magnetic powder brake and the unit motor to be tested, and has automatic centering effect.

2. The motor fixing part is arranged in the support platform in a sliding mode, so that the arrangement of the unit motor is not influenced before fixing, and meanwhile, the embedded groove of the support platform can guide the arrangement position of the unit motor.

3. Through set up two relative slipmats in the round platform shape lantern ring to, when fixed to the unit motor, at first hold slipmat and unit motor tightly, later, utilize round platform shape lantern ring to the slipmat locking, simultaneously, the round platform shape lantern ring can't rotate at the horizontal direction under the restriction of both sides support arm, and then can fix the unit motor, and with the unit motor at the circumference contact, area of contact is great, fixed effect is better.

4. The anti-slip mat is connected with the round table-shaped lantern ring in a sliding manner, so that the phenomenon that the anti-slip mat is easy to fall off and lose when the anti-slip mat is separated from the round table-shaped lantern ring is avoided, an operator does not need to manually support the anti-slip mat when the anti-slip mat is used, and the difficulty in operation is reduced; meanwhile, the magnets with opposite magnetic poles are used for enabling the anti-slip pads to extend out of the circular truncated cone-shaped lantern ring in a normal state, so that the distance between the two anti-slip pads is relatively large, and further when the motor fixing part moves upwards, the anti-slip pads are not in contact with the unit motor, and the upwards movement of the motor fixing part is not influenced.

5. After the motor fixing part is moved to a proper position, the non-slip mat is prevented from moving only by means of external force, and the non-slip mat is contracted in the circular truncated cone-shaped lantern ring. However, the limiting plate which horizontally slides is arranged, so that the unit motor can be pre-positioned, the movement of the anti-skid pad can be prevented, and the whole process is automated.

6. Utilize reciprocating of driving motor and screw drive round platform shape lantern ring, mechanical degree of automation is high, uses manpower sparingly, convenient operation.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be 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 to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic diagram of an overall structure of an apparatus suitable for a rapid motor detection method according to the present invention;

FIG. 2 is a partial structural schematic view of a flexible connecting shaft;

FIG. 3 is an exploded view of a portion of the motor fixing member, which is mainly used to show the connection manner of the anti-slip mat and the circular truncated cone-shaped collar;

fig. 4 is a partial schematic structural view of the present invention, which is mainly used for showing the driving manner of the circular truncated cone-shaped collar.

In the figure, 1, a program-controlled host; 2. a motor fixing rack; 21. a limiting plate; 22. a yielding groove; 23. a screw; 24. a drive motor; 3. a magnetic powder brake; 4. a torque sensor; 41. a flexible connecting shaft; 42. a flexible pad; 5. a unit vertical well; 51. a support table; 52. caulking grooves; 6. a motor fixing part; 61. a circular truncated cone-shaped collar; 62. an anti-slip liner; 63. a non-slip mat; 64. a slider; 65. a chute; 66. a magnet; 67. a support arm; 7. a support frame; 8. a vertical running-in frame; 81. a transverse running-in frame; 82. a V-shaped supporting block; 83. pressing a plate; 9. a unit motor.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the specific embodiments. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

A motor rapid detection system, referring to FIG. 1, includes a unit motor 9 running-in test unit and a power test unit installed on a motor fixing stand 2, which can respectively perform a running-in test and a load power test on the unit motor 9.

Referring to fig. 1, the running-in test unit comprises a vertical running-in frame 8 welded on the side wall of the motor fixing rack 2, and the vertical running-in frame 8 is composed of a plurality of V-shaped supporting blocks 82 vertically arranged and a pressing plate 83 used in cooperation with the supporting blocks. The unit motor 9 is vertically placed on the V-shaped supporting block 82 and then is pressed tightly by the pressing plate 83, then the unit motor 9 is electrically connected with the program control host 1 for detecting the unit motor, the program control host 1 is purchased from program control equipment limited of Jiangsu Hainanyuchen, concretely, a TR-3 type torque, rotating speed and power acquisition instrument and an SC-1W type program control power supply, the program control host 1 controls the unit motor 9 to rotate, and detects the starting, running current, voltage and the like of the unit motor 9, and meanwhile, the assembling quality of the unit motor 9, such as the shaft movement, the air gap, the disc shaft torque and the like of the unit motor 9 during operation, can be detected. The specific detection program is controlled by the program control host 1, which belongs to the known prior art in the field and is not described herein.

Further, since the unit motor 9 may be in a vertical direction or in a horizontal direction or in any other direction when in use, the horizontal running-in frame 81 is horizontally welded to the motor fixing rack 2 in the present invention, and referring to fig. 1, the structure of the horizontal running-in frame is the same as that of the vertical running-in frame 8, so that the unit motor 9 can be fixed in the horizontal direction, and the performance of the unit motor 9 during operation in the horizontal direction can be detected.

Referring to fig. 1 and 2, the power testing unit comprises a magnetic powder brake 3 and a torque sensor 4 which are electrically connected with the program control host 1, the magnetic powder brake 3 is installed at the top of an inverted U-shaped support frame 7, the bottom of the magnetic powder brake is connected with the torque sensor 4 through a flexible connecting shaft 41 which penetrates through the top of the inverted U-shaped support frame 7, the torque sensor 4 is located in the inverted U-shaped support frame 7, and the inverted U-shaped support frame 7 is movably placed on the motor fixing rack 2. When carrying out power test to unit motor 9, keep away from the one end transmission of magnetic powder stopper 3 with torque sensor 4 with unit motor 9 and be connected, later, control magnetic powder stopper 3 and torque sensor 4 through programme-controlled host computer 1 and start, can drive unit motor 9 and move, test the power of unit motor 9. The flexible connecting shaft 41 is formed by mutually embedding two opposite embedded toothed shafts, and meanwhile, a flexible pad 42 made of rubber is arranged between adjacent teeth in a cushioning mode, so that alignment during shaft connection can be compensated, and automatic center supplement is achieved. In this embodiment, the magnetic powder brake 3 and the torque sensor 4, and the torque sensor 4 and the unit motor 9 are connected by a flexible connecting shaft 41.

In order to be able to carry out power detection to unit motor 9, place and fix unit motor 9 more conveniently, in this embodiment vertically dig out in motor fixed rack 2 one end and be provided with a unit vertical well 5, refer to fig. 1, the equal opening in lateral wall and the top of unit vertical well 5, the bottom sets up a supporting bench 51, vertical sliding connection has motor fixed part 6 in the supporting bench 51, this motor fixed part 6 can be briquetting or clamping jaw etc. as long as can shift out it from supporting bench 51, it can to fix unit motor 9.

Referring to fig. 1, 3 and 4, in the present embodiment, the motor fixing member 6 includes a circular truncated cone-shaped collar 61 and a non-slip pad 62 movably attached to an inner wall of the circular truncated cone-shaped collar 61, and the non-slip pad 62 is a rubber pad. The larger one end of the bore of the round platform-shaped lantern ring 61 is vertical upwards, the supporting platform 51 is internally provided with an embedding groove 52 matched with the round platform-shaped lantern ring 61, and the round platform-shaped lantern ring 61 can be moved out of the supporting platform 51 to fix the unit motor 9. The anti-slip liner 62 includes two relative settings, the semicircular slipmat 63 of cross section, and the thickness of slipmat 63 thickens gradually from bottom to top to when fixed to unit motor 9, the inner wall of slipmat 63 and the outer wall of unit motor 9 closely surround, and the outer wall of slipmat 63 closely laminates with the inner wall of round platform shape lantern ring 61, and then, round platform shape lantern ring 61 embraces tightly in unit motor 9 periphery.

Referring to fig. 1, 3 and 4, a sliding block 64 is fixedly and convexly connected to an end of the outer wall of the non-slip mat 63, which is close to the supporting platform 51, and the sliding block 64 is T-shaped in cross section along a direction perpendicular to the outer wall of the non-slip mat 63. A T-shaped slide groove 65 that is engaged with the slide block 64 is provided along the generatrix direction on the inner wall of the circular truncated cone-shaped collar 61, and the slide block 64 is slidably fitted in the slide groove 65 and can slide along the slide groove 65. Magnets 66 with opposite magnetic poles are respectively adhered to the bottom surface of the sliding block 64 and the inner bottom surface of the sliding groove 65, and under the action of the magnets 66, the anti-skid pad 63 extends outwards along the generatrix direction of the circular truncated cone-shaped lantern ring 61 in a normal state. In the motor fixing rack 2, limiting plates 21 for pre-positioning the unit motor 9 are horizontally arranged on two sides of the unit vertical shaft 5 in a sliding mode respectively, and the limiting plates 21 are located above the motor fixing part 6.

Referring to fig. 1, 3 and 4, two sides of the circular truncated cone-shaped lantern ring 61 extend out of the supporting arms 67 respectively, the motor fixing rack 2 is vertically provided with the yielding groove 22 matched with the supporting arms 67, and the supporting arms 67 can vertically slide in the yielding groove 22. A screw 23 is vertically arranged in the abdicating groove 22, the screw 23 penetrates through the supporting arm 67 and is in threaded connection with the supporting arm 67, and the bottom of the screw 23 is connected with the driving motor 24. The motor fixing part 6 may be applied to the vertical running frame 8 and the lateral running frame 81 to fix the unit motor 9.

And a temperature sensor is also arranged in the unit vertical well 5 and is electrically connected with the program control host 1 so as to detect the temperature rise of the unit motor 9.

The detection method of the motor rapid detection system is as follows.

S1: and fixing the unit motor 9 to be tested in the vertical running-in frame 8, electrically connecting the unit motor with the program control host 1, and carrying out running-in test on the running performance of the unit motor 9 in the vertical direction.

S2: fixing the unit motor 9 to be tested in the transverse running-in frame 81, electrically connecting the unit motor with the program control host 1, and carrying out running-in test on the running performance of the unit motor 9 in the horizontal direction.

S3: the unit motor 9 which is subjected to running-in detection and qualified is placed in the unit vertical well 5, the inverted U-shaped support frame 7 loaded with the magnetic powder brake 3 and the torque sensor 4 is moved to the position right above the unit vertical well 5 and is fixed, the support frame is in transmission connection with the end portion of the unit motor 9 through a flexible shaft, then the magnetic powder brake 3 and the torque sensor 4 are started through the program control host 1, and the running power of the unit motor 9 is detected. When the unit motor 9 is placed in the unit vertical shaft 5, the circular truncated cone-shaped collar 61 is retracted in the support table 51, and the unit motor 9 is placed in the ring surrounded by the caulking groove 52 of the support table 51; then, horizontally pushing out the limit plate 21 to surround the periphery of the unit motor 9; the driving motor 24 is started to drive the screw 23 to rotate, and the circular truncated cone-shaped lantern ring 61 drives the anti-slip pad 63 to gradually move upwards along with the rotation of the screw 23; until the anti-slip mat 63 abuts against the limiting plate 21, under the limitation of the limiting plate 21, the anti-slip mat 63 gradually overcomes the reaction force of the two magnets 66, the sliding block 64 moves downwards along the T-shaped sliding groove 65, and the anti-slip mat 63 gradually shrinks in the circular truncated cone-shaped lantern ring 61; finally, the inner wall of the anti-slip mat 63 is tightly wrapped on the outer wall of the unit motor 9, the outer wall of the anti-slip mat 63 is tightly surrounded with the inner wall of the circular truncated cone-shaped lantern ring 61, the unit motor 9 is tightly embraced, at the moment, any part of the upper end of the anti-slip mat 63 is exposed out of the circular truncated cone-shaped lantern ring 61, and the driving motor 24 stops working. Under the restriction cooperation of the support arms 67 on the two sides of the circular truncated cone-shaped lantern ring 61 and the abdicating groove 22, the circular truncated cone-shaped lantern ring 61 cannot rotate in the horizontal direction, so that the fixation of the unit motor 9 is realized.

S4: after the power detection is finished, the driving motor 24 is started again and rotates reversely, the circular truncated cone-shaped lantern ring 61 gradually moves downwards, and the holding force between the circular truncated cone-shaped lantern ring and the anti-skid pad 63 is gradually reduced; under the action of the magnet 66, the anti-slip pad 63 gradually extends out of the circular truncated cone-shaped collar 61 and releases the holding of the unit motor 9. Finally, under the restriction of the T-shaped sliding slot 65, the circular truncated cone-shaped sleeve ring 61 drives the anti-slip pad 63 to move downwards and contract in the supporting platform 51, at this time, the anti-slip pad 63 extends out of the supporting platform 51, and the driving motor 24 stops working.

Claims

1. A quick detection method for a motor is characterized by comprising the following steps:

s1: fixing a unit motor (9) to be tested in the vertical running-in frame (8), electrically connecting the unit motor with the program control host (1), and carrying out running-in test on the running performance of the unit motor (9) in the vertical direction;

s2: fixing a unit motor (9) to be tested in a transverse running-in frame (81), electrically connecting the unit motor with a program control host (1), and carrying out running-in test on the running performance of the unit motor (9) in the horizontal direction;

s3: placing the qualified unit motor (9) which is subjected to running-in detection in the unit vertical well (5), and horizontally pushing out the limiting plate (21) to surround the periphery of the unit motor (9) after placing the unit motor (9) in the unit vertical well (5); the driving motor (24) is started to drive the screw rod (23) to rotate, and the circular truncated cone-shaped lantern ring (61) drives the anti-slip mat (63) to gradually move upwards along with the rotation of the screw rod (23); until the anti-skid pad (63) is abutted against the limiting plate (21), the anti-skid pad (63) gradually shrinks in the circular truncated cone-shaped lantern ring (61); finally, the inner wall of the non-slip mat (63) is tightly wrapped on the outer wall of the unit motor (9), the outer wall of the non-slip mat (63) is tightly surrounded with the inner wall of the circular truncated cone-shaped lantern ring (61) to tightly hold the unit motor (9), under the restriction cooperation of the groove of stepping down (22) of round platform shape lantern ring (61) both sides support arm (67) and motor fixed rack (2), round platform shape lantern ring (61) can't rotate in the horizontal direction, the realization is fixed to unit motor (9), will load and load support frame (7) of the type of falling U of magnetic powder stopper (3) and torque sensor (4) and remove to the vertical well (5) of unit directly over and fixed, make torque sensor (4) be connected with the tip transmission of unit motor (9), later start magnetic powder stopper (3) and torque sensor (4) through programme-controlled host computer (1), the operating power to unit motor (9) detects.

2. The motor rapid detection method according to claim 1, characterized in that: s4 is added behind S3, after power detection is finished, the driving motor (24) is started again and rotates reversely, the circular truncated cone-shaped lantern ring (61) gradually moves downwards, and the holding force between the circular truncated cone-shaped lantern ring and the anti-skid pad (63) is gradually reduced; the anti-slip mat (63) gradually extends out of the circular truncated cone-shaped lantern ring (61) and releases the holding of the unit motor (9).

3. The motor rapid detection method according to claim 1, characterized in that: the magnetic powder brake (3) is connected with the torque sensor (4) through a flexible connecting shaft (41).

4. The motor rapid detection method according to claim 1, characterized in that: the torque sensor (4) is connected with the unit motor (9) through a flexible connecting shaft (41).

5. The motor rapid detection method according to claim 1, characterized in that: the vertical running-in frame (8) and/or the horizontal running-in frame (81) comprise a plurality of V-shaped supporting blocks (82) and pressing plates (83) matched with the V-shaped supporting blocks (82) for use, and the unit motor (9) is fixed in the V-shaped supporting blocks (82) through the pressing plates (83).

6. The method for rapidly detecting the motor according to claim 1 or 2, wherein the method comprises the following steps: the outer wall of the non-slip mat (63) is provided with a sliding block (64), the inner wall of the circular truncated cone-shaped lantern ring (61) is provided with a sliding groove (65) matched with the sliding block (64) along the generatrix direction, and the sliding block (64) is embedded in the sliding groove (65) in a sliding manner.

7. The motor rapid detection method according to claim 6, characterized in that: magnets (66) with opposite magnetic poles are arranged at the bottom of the sliding block (64) and the inner bottom surface of the sliding groove (65).