CN112946474A - Rotating speed detection device for motor manufacturing - Google Patents
Rotating speed detection device for motor manufacturing Download PDFInfo
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- CN112946474A CN112946474A CN202110265538.5A CN202110265538A CN112946474A CN 112946474 A CN112946474 A CN 112946474A CN 202110265538 A CN202110265538 A CN 202110265538A CN 112946474 A CN112946474 A CN 112946474A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
- G01R31/343—Testing dynamo-electric machines in operation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P1/00—Details of instruments
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a rotating speed detection device for manufacturing a motor, which comprises a base, a rotating shaft and a rotating shaft, wherein the base is provided with a rotating shaft hole; the lifting platform is connected to the top end of the base, and a vibration damping mechanism is arranged in the lifting platform; the detection platform is connected to the top end of the lifting platform in a sliding manner, and the top end of the detection platform is connected with two clamping plates in a sliding manner; the rotating speed detection plate is connected to the side end of the detection platform; the control box is arranged on one side of the base and is electrically connected with the base, the lifting platform, the detection platform and the rotating speed detection plate. The vibration damping mechanism is suitable for detection personnel with different heights, the rotation speed of the motor can be effectively detected, vibration in the vertical direction of the detection platform is buffered through the vibration damping mechanism, the motor and the device are prevented from resonating, the influence of the vibration on the rotation speed detection result is reduced, the noise in the detection process is reduced, and the detection precision and the detection efficiency of the device are improved.
Description
Technical Field
The invention relates to the technical field of motor detection, in particular to a rotating speed detection device for motor manufacturing.
Background
The motor is widely applied to mechanical devices, the rotating speed of the motor needs to be detected before the motor is manufactured and delivered out of a factory and before the motor is assembled, so that the rotating speed is accurate and the operation is safe, the manual detection efficiency is low, the detection error is large, and when the motor is clamped and detected by the conventional motor rotating speed detection device, the influence of vibration generated by the action of the motor on a detection result is ignored, the detection result deviation is caused, and large noise is generated. Therefore, in order to solve the problem of the influence of the motor vibration on the detection result, it is necessary to design a rotation speed detection device for manufacturing a motor.
Disclosure of Invention
In order to solve the technical problems, the invention discloses a rotating speed detection device for motor manufacturing, which can adapt to detection personnel with different heights, effectively realizes the detection of the rotating speed of a motor by connecting a rotating speed detection plate with the motor, and buffers the vibration of a detection platform in the vertical direction by a vibration reduction mechanism, so that the motor and the device are prevented from generating resonance, the influence of the vibration on the rotating speed detection result is reduced, the noise in the detection process is reduced, and the detection precision and the detection efficiency of the device are improved; it includes:
a base;
the lifting platform is connected to the top end of the base, and a vibration damping mechanism is arranged in the lifting platform;
the detection platform is connected to the top end of the lifting platform in a sliding manner, and the top end of the detection platform is connected with two clamping plates in a sliding manner;
the rotating speed detection plate is connected to the side end of the detection platform;
the control box is arranged on one side of the base and is electrically connected with the base, the lifting platform, the detection platform and the rotating speed detection plate.
Preferably, the elevating platform comprises:
the lifting platform comprises a lifting platform body, a first sliding groove, a first sliding block, a first connecting rod and a first wedge-shaped groove, wherein the lifting platform body is fixedly connected to the top end of the base; the sliding chute vertically penetrates through the lifting platform body; the first sliding block is connected to the inner wall of the first sliding groove in a sliding manner; the first connecting rod is connected between the top end of the first sliding block and a second sliding block fixedly connected with the bottom end of the detection platform; two first wedge groove symmetry is seted up in elevating platform body bottom, first wedge groove and first spout intercommunication setting.
Preferably, the base includes a base body and a lifting mechanism connected to the base body, the lifting mechanism includes:
the first cavity is arranged in the seat body, the top end of the first cavity is open, and the first cavity is communicated with the first wedge-shaped groove and the first sliding groove; the first rotating shaft is rotatably connected to the inner wall of the first cavity and horizontally arranged, and two threaded regions with opposite rotating directions are symmetrically arranged on the surface of the first rotating shaft; the two third sliding blocks are respectively screwed in the two thread areas of the first rotating shaft and are symmetrically arranged; the two second sliding grooves are symmetrically formed in the bottom end of the inner wall of the first cavity and are respectively connected with the bottom end of the third sliding block in a sliding mode; the first belt pulley is mounted on the first rotating shaft, and the first belt pulley is arranged outside one of the third sliding blocks; the first motor is arranged at the top end of the seat body, is arranged close to the first belt pulley and is electrically connected with the control box; the second belt wheel is connected to the output shaft of the first motor and is connected with the first belt wheel through a synchronous belt; the two second connecting rods are symmetrically arranged, the bottom ends of the two second connecting rods are respectively connected with the two third sliding blocks, and the top ends of the two second connecting rods are simultaneously connected with the bottom end of the first sliding block.
Preferably, testing platform include the stage body and connect in the clamping machine of stage body inside one side constructs, clamping machine constructs including:
the second cavity is arranged inside the table body;
the second rotating shaft is rotatably connected to the inner wall of the second cavity, one end of the second rotating shaft is connected with a second motor, and the second motor is electrically connected with the control box;
the first bevel gear is connected to the second rotating shaft;
the two second bevel gears are respectively meshed and connected to two sides of the first bevel gear and are symmetrically arranged;
the third rotating shaft is fixedly connected to the center of the second bevel gear, extends in the direction far away from the first bevel gear, and is uniformly provided with a plurality of threads;
the first push rod is in threaded connection with one side, far away from the first bevel gear, of the third rotating shaft;
the first push plate is connected to one side, away from the first bevel gear, of the first push rod and is in sliding connection with the inner wall of the second cavity, and a first sealing cavity is formed between one side, away from the first bevel gear, of the first push plate and the second cavity;
the fixed blocks are symmetrically connected to the top end of the table body, and the positions of the fixed blocks are matched with the positions of the clamping plates;
the pneumatic box is fixedly connected to the top end of the fixed block, and the output end of the pneumatic box is connected with the clamping plate;
the third cavity is arranged in the pneumatic box;
the second push plate is connected to the inner wall of the third cavity in a sliding mode, a second sealing cavity is formed between one side, far away from the clamping plate, of the second push plate and the third cavity, and the second sealing cavity is communicated with the first sealing cavity;
and the second push rod is fixedly connected to the side end of the second push plate, and the second push rod horizontally penetrates through the pneumatic box and is connected with the clamping plate.
Preferably, two splint symmetrical arrangement, two the relative one side end of splint is connected with the flexible pad.
Preferably, the rotating speed detection plate is connected with a fourth rotating shaft, the fourth rotating shaft is connected with a first detection belt wheel, when the motor detects, a second detection belt wheel is connected to an output shaft of the motor, the first detection belt wheel is connected with the second detection belt wheel through a synchronous belt, the rotating speed detection plate is connected with a rotating speed sensor, and the rotating speed sensor is electrically connected with the control box.
Preferably, the vibration damping mechanism includes:
the two second wedge-shaped grooves are symmetrically formed in the side wall of the first sliding groove, and the second wedge-shaped grooves are arranged above the first wedge-shaped grooves; the wedge-shaped block is connected to the inner wall of the second wedge-shaped groove in a sliding mode, and the bottom end of the wedge-shaped block is fixedly connected with the first sliding block; the two sliding sleeves are connected to the outer sides of the first connecting rods in a sliding mode; every be connected with two third connecting rods on the sliding sleeve symmetry, the third connecting rod other end with the wedge is connected, two the top and the bottom of sliding sleeve are connected with the spring respectively, the spring housing is located the first connecting rod outside.
Preferably, the outer surface of the control box is connected with a display device and an operation panel, and the side end of the control box close to the detection platform is connected with a camera.
Preferably, still be provided with circulation heat abstractor in the testing platform, circulation heat abstractor includes:
the shell is fixedly connected to the middle part in the table body, and the height of the upper surface of the shell is consistent with that of the upper surface of the table body;
the fourth cavity is arranged inside the shell;
the upper groove is formed in the top end of the shell, and the bottom end of the upper groove is communicated with the fourth cavity;
the lower groove is formed in the shell, the top end of the lower groove is communicated with the fourth cavity, two side ends of the lower groove are respectively connected with a touch switch, and the touch switches are electrically connected with the control box;
the side grooves are symmetrically formed in the side end of the inner wall of the fourth cavity, and a plurality of first clamping teeth are uniformly arranged in the side grooves;
the first gear is meshed with the first clamping teeth in the side grooves;
the mounting groove is formed in the top end of the first gear, and a plurality of second clamping teeth are uniformly arranged on the inner wall of the mounting groove;
the fifth rotating shaft is connected to the center of the first gear through a bearing, and the top end of the fifth rotating shaft extends into the mounting groove;
the third motor is connected to the top end of the fifth rotating shaft and is electrically connected with the control box;
the sixth rotating shaft is connected to the output end of the third motor and vertically extends into the upper groove;
the fan blade is connected to the top end of the sixth rotating shaft;
a second gear connected to the sixth rotating shaft and disposed inside the mounting groove;
the seventh rotating shaft is fixedly connected to the inner wall of the mounting groove and arranged in parallel with the sixth rotating shaft;
the third gear is connected to the seventh rotating shaft and is meshed with the second gear and a second clamping tooth on the inner wall of the mounting groove;
the connecting rod is fixedly connected to the bottom end of the fifth rotating shaft, and the connecting rod vertically extends downwards into the lower groove;
the pressing block is connected in the lower groove in a sliding manner and is fixedly connected with the connecting rod;
the filter screen, the filter screen connect in go up the recess inner wall top.
Preferably, the rotation speed detecting device for manufacturing a motor further includes:
the safety protection device is used for monitoring the temperature rise condition of the motor in real time, calculating the temperature rise of the motor under the normal operation condition according to a preset algorithm, determining whether to start the safety protection device according to the real-time temperature rise condition, and after the safety protection device is started, the safety protection device performs emergency power-off on the motor, wherein the specific steps of the preset algorithm are as follows:
step A1, solving the temperature rise under the condition of normal operation of the motor according to the following formula:
wherein, Delta T0In order to solve the temperature rise under the condition of normal operation of the motor, D is the diameter of the inner circle of the stator of the motor, A is the thermal conductance between the motor and the environment, rho is the conductor thermal resistivity of the stator of the motor, W is the number of turns of a coil of each phase of the stator of the motor, m is the number of phases of the stator of the motor, I is the current intensity, S is the conductor sectional area of the stator of the motor, P is the rated power, and L is the length of a wire core of the stator of the motor;
step A2, according to the temperature rise delta T obtained in the step A1 under the condition that the motor normally runs0When the real-time temperature rise delta T and the temperature rise delta T under the condition of normal operation of the motor0When the difference value of the temperature difference value reaches a preset value, namely the real-time temperature rise is overhigh, the safety protection device is started at the moment, and when the real-time temperature rise delta T and the temperature rise delta T under the condition of normal running of the motor are realized0When the difference value does not reach the preset value, the safety protection device does not need to be started at the moment
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of the base and the lift platform of the present invention;
FIG. 3 is an enlarged view of a portion of the structure shown in FIG. 2;
FIG. 4 is a schematic cross-sectional view of an inspection platform according to the present invention;
fig. 5 is a schematic cross-sectional view of the structure of the circulation heat dissipation device of the present invention.
In the figure: 1. a base; 2. a lifting platform; 3. a detection platform; 4. a rotating speed detection plate; 5. a control box; 6. a splint; 20. a lifting platform body; 201. a first chute; 202. a first slider; 203. a first link; 204. a first wedge groove; 10. a base body; 101. a first cavity; 102. a first rotating shaft; 103. a third slider; 104. a chute; 105. a first pulley; 106. a first motor; 107. a second pulley; 108. a second link; 30. a table body; 301. a second cavity; 302. a second rotating shaft; 303. a first bevel gear; 304. a second bevel gear; 305. a third rotating shaft; 306. a first push rod; 307. a first push plate; 308. a first sealed chamber; 309. a fixed block; 310. a pneumatic tank; 311. a third cavity; 312. a second push plate; 313. a second sealed chamber; 314. a second push rod; 401. a fourth rotating shaft; 402. a first detection pulley; 211. a second wedge-shaped groove; 212. a wedge block; 214. a sliding sleeve; 215. a spring; 217. a third link; 701. a housing; 702. a fourth cavity; 703. an upper groove; 704. a lower groove; 705. a side groove; 706. a first gear; 707. mounting grooves; 708. a fifth rotating shaft; 709. a third motor; 710. a sixth rotating shaft; 711. a fan blade; 712. a second gear; 713. a seventh rotating shaft; 714. a third gear; 715. a connecting rod; 716. a pressing block; 717. and (5) filtering by using a filter screen.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
The invention will be further described with reference to the accompanying drawings.
As shown in fig. 1 to 5, the present embodiment provides a rotational speed detection apparatus for manufacturing a motor, including:
a base 1;
the lifting platform 2 is connected to the top end of the base 1, and a vibration damping mechanism is arranged in the lifting platform 2;
the detection platform 3 is connected to the top end of the lifting platform 2 in a sliding mode, the top end of the detection platform 3 is connected with two clamping plates 6 in a sliding mode, and the motor is placed on the upper surface of the detection platform 3 and located between the two clamping plates 6;
the rotating speed detection plate 4 is connected to the side end of the detection platform 3);
and the control box 5 is arranged on one side of the base 1, and the control box 6 is connected with the base 1, the lifting platform 2, the detection platform 3 and the rotating speed detection plate 4.
The working principle of the invention is as follows:
the invention provides a rotating speed detection device for manufacturing a motor, when the rotating speed detection device is used, a detection person starts a lifting mechanism through a control box 5 to adjust the height of a detection platform to adapt to the height, then the motor is placed on the upper surface of the detection platform 3, a clamping mechanism is started through the control box 5 to enable a clamping plate 6 to move relatively, the relative distance is adjusted according to the size of the motor, the motor is clamped to a preset position, then a second detection belt wheel is connected to an output shaft of the motor, the second detection belt wheel is connected with a first detection belt wheel 402 on a rotating speed detection plate 4 through a synchronous belt, the motor is started, a rotating speed sensor detects the rotating speed of a fourth rotating shaft 401, the rotating speed of the motor is obtained through calculation, and a damping mechanism in a lifting platform 2 buffers the motor in.
The invention has the beneficial effects that:
the rotating speed detection device for manufacturing the motor can adapt to detection personnel with different heights, effectively realizes the detection of the rotating speed of the motor by connecting the rotating speed detection plate 4 with the motor, buffers the vibration of the detection platform 3 in the vertical direction by the vibration reduction mechanism, prevents the motor from resonating with the device, reduces the influence of the vibration on the rotating speed detection result, reduces the noise in the detection process, and improves the detection precision and the detection efficiency of the device.
As shown in fig. 2, in one embodiment, the lifting table 2 includes:
the lifting platform comprises a lifting platform body 20, a first sliding groove 201, a first sliding block 202, a first connecting rod 203 and a first wedge-shaped groove 204, wherein the lifting platform body 20 is fixedly connected to the top end of the base 1; the chute 201 vertically penetrates through the lifting platform body 20; the first sliding block 202 is slidably connected to the inner wall of the first sliding chute 201; the first connecting rod 203 is connected between the top end of the first sliding block 202 and a second sliding block fixedly connected with the bottom end of the detection platform 3; the two first wedge-shaped grooves 204 are symmetrically arranged at the bottom end of the lifting platform body 20, and the first wedge-shaped grooves 204 are communicated with the first sliding groove 201.
The working principle and the beneficial effects of the technical scheme are as follows:
when the elevating platform 2 is used, the first sliding block 202 is jacked to apply upward force through the elevating mechanism, so that the first sliding block 202 moves upwards in the first sliding groove 201, the first sliding block 202 pushes the second sliding block to move upwards through the first connecting rod 203, and therefore the detection platform 3 is pushed upwards, the height adjustment of the detection platform 3 is effectively realized, the detection platform 3 is enabled to effectively adapt to heights of different detection personnel, and the detection operation is convenient to perform.
As shown in fig. 2, in an embodiment, the base 1 includes a base body 10 and a lifting mechanism connected to the base body 10, and the lifting mechanism 10 includes:
the first cavity 101, the first rotating shaft 102, the third slider 103, the second sliding chute 104, the first pulley 105, the first motor 106, the second pulley 107 and the second connecting rod 108 are arranged in the base 10, the top end of the first cavity 101 is open, and the first cavity 101 is communicated with the first wedge-shaped groove 204 and the first sliding chute 201; the first rotating shaft 102 is rotatably connected to the inner wall of the first cavity 101, the first rotating shaft 102 is horizontally arranged, and two threaded regions with opposite rotation directions are symmetrically arranged on the surface of the first rotating shaft 102; the two third sliding blocks 103 are respectively screwed in the two thread areas of the first rotating shaft 102, and the two third sliding blocks 103 are symmetrically arranged; the two second sliding grooves 104 are symmetrically formed in the bottom end of the inner wall of the first cavity 101, and the second sliding grooves 104 are respectively connected with the bottom end of the third sliding block 103 in a sliding manner; the first pulley 105 is mounted on the first rotating shaft 102, and the first pulley 105 is arranged outside one of the third sliders 103; the first motor 106 is mounted at the top end of the seat body 10, the first motor 106 is arranged close to the first pulley 105, and the first motor 106 is electrically connected with the control box 5; the second belt pulley 107 is connected to the output shaft of the first motor 106, and the second belt pulley 107 is connected with the first belt pulley 105 through a synchronous belt; the two second connecting rods 108 are symmetrically arranged, the bottom ends of the two second connecting rods 108 are respectively connected with the two third sliding blocks 103, and the top ends of the two second connecting rods 108 are simultaneously connected with the bottom end of the first sliding block 202.
The working principle and the beneficial effects of the technical scheme are as follows:
when the lifting mechanism is used, the control box 5 starts the first motor 106 to rotate positively, the first motor 106 drives the second belt wheel 105 to rotate positively, the second belt wheel 105 drives the first belt wheel 105 to rotate through the synchronous belt, the first rotating shaft 102 is made to rotate, the third sliding blocks 103 in two thread areas of the first rotating shaft 102 move relatively, the third sliding blocks 103 drive the bottom ends of the second connecting rods 108 above the third sliding blocks to be close to each other, so that the second connecting rods 108 support the first sliding blocks 202 to apply upward force, the first sliding blocks 202 move upwards in the first sliding grooves 201, the first sliding blocks 202 push the second sliding blocks to move upwards through the first connecting rods 203, the detection platform 3 is pushed upwards, the lifting of the detection platform 3 is realized, and when the first motor 106 is started to rotate reversely, the detection platform 3 descends. Through the structural design, realize testing platform 3's lift operation through the drive of first motor 106, control is simple, belt pulley transmission realizes slowing down first motor 106, avoid first motor 106 rotational speed too high to produce the impact to testing platform 3, the symmetry sets up third slider 103 and first connecting rod 203, realize first connecting rod 203 to the uniformity of first slider 202 thrust, the pressure that first connecting rod 203 receives is dispersed, effectively guarantee testing platform 3 is balanced, the reliability of the device is improved.
In one embodiment, the detection platform 3 includes a table 30 and a fixture connected to one side inside the table 30, and the fixture includes:
the second cavity 301 is arranged inside the table body 30, and the second cavity 301 is arranged inside the table body 30;
the second rotating shaft 302 is rotatably connected to the inner wall of the second cavity 301, one end of the second rotating shaft 302 is connected with a second motor, and the second motor is electrically connected with the control box 5;
the first bevel gear 303, the first bevel gear 303 is connected to the second rotating shaft 302;
two second bevel gears 304, wherein the two second bevel gears 304 are respectively connected to two sides of the first bevel gear 303 in a meshing manner, and the two second bevel gears 304 are symmetrically arranged;
the third rotating shaft 305 is fixedly connected to the center of the second bevel gear 304, the third rotating shaft 305 extends in a direction away from the first bevel gear 303, and a plurality of threads are uniformly arranged on the outer side of the third rotating shaft 305;
a first push rod 306, wherein the first push rod 306 is screwed on one side of the third rotating shaft 305 away from the first bevel gear 303;
a first push plate 307, wherein the first push plate 307 is connected to one side of the first push rod 306 away from the first bevel gear 303, the first push plate 307 is connected with the inner wall of the second cavity 301 in a sliding manner, and a first sealing cavity 308 is formed between one side of the first push plate 307 away from the first bevel gear 303 and the second cavity 301;
the fixing blocks 309 are symmetrically connected to the top end of the table body 30, and the positions of the fixing blocks 309 are matched with the positions of the clamping plates 6;
the pneumatic box 310 is fixedly connected to the top end of the fixing block 309, and the output end of the pneumatic box 310 is connected with the clamping plate 6;
a third cavity 311, wherein the third cavity 311 is arranged in the pneumatic box 310;
the second push plate 312 is slidably connected to the inner wall of the third cavity 311, a second sealing cavity 313 is formed between one side of the second push plate 312, which is far away from the clamping plate 6, and the third cavity 311, and the second sealing cavity 313 is communicated with the first sealing cavity 308;
and the second push rod 314 is fixedly connected to the side end of the second push plate 312, and the second push rod 314 horizontally penetrates through the pneumatic box 310 and is connected with the clamping plate 6.
The working principle and the beneficial effects of the technical scheme are as follows:
when the clamping mechanism is used, a motor is placed above the table body 30, the control box 5 is used for starting the second motor to rotate forwards, the second motor drives the second rotating shaft 302 to drive the first bevel gear 303 to rotate, the first bevel gear 303 drives the two second bevel gears 304 to rotate synchronously, so that the third rotating shaft 305 rotates, the first push rod 306 rotates out towards the direction away from each other, the two first push plates 307 are pushed to be away from each other, gas in the first sealing cavity 308 is compressed and conveyed into the second sealing cavity 308, the gas pushes the second push plates 312 to be close to each other, the clamping plates 6 are pushed to be close to each other through the second push rod 314, the relative distance of the clamping plates 6 is adjusted according to the size of the motor, the motor is clamped and fixed, and when the motor is taken down, the control box 5 is used for starting the second motor to rotate. Through the above-mentioned structural design, turn into the removal of splint 6 with the rotation of second motor, adjust the distance between splint 6 through pneumatic mode, compare in the mode of the direct clamping of traditional drive lead screw, avoid the excessive extrusion of clamping in-process to the motor, the gas in sealed chamber cushions the vibration that the motor testing process produced simultaneously, effectively reduces the motor and rotates the impact of in-process horizontal direction, prevents to collide with between motor and the device and produces the damage.
In one embodiment, two of the clamping plates 6 are symmetrically arranged, and a flexible pad is connected to one end of each of the two clamping plates 6 opposite to each other.
The working principle and the beneficial effects of the technical scheme are as follows:
two 6 symmetrical arrangement of splint to synchronous motion is fixed in the motor and predetermines the test position, keeps test status's uniformity, reduces experimental error, simultaneously, sets up the flexbleJoint on splint 6, and the motor contacts with the flexblejoint when fixed, alleviates the vibration that the motor produced when moving, causes to collide with and damage the motor when avoiding the rigidity centre gripping, reduces the vibration noise.
In one embodiment, the rotation speed detection plate 4 is connected with a fourth rotating shaft 401, the fourth rotating shaft 401 is connected with a first detection belt wheel 402, when the motor detects, a second detection belt wheel is connected with an output shaft of the motor, the first detection belt wheel 402 is connected with the second detection belt wheel through a synchronous belt, the rotation speed detection plate 4 is connected with a rotation speed sensor, and the rotation speed sensor is electrically connected with the control box 5.
The working principle and the beneficial effects of the technical scheme are as follows:
when the motor carries out the rotational speed and detects, through set up the second on the motor output shaft and detect the band pulley, the second detects the band pulley diameter and is the proportional relation with first detection band pulley 402 diameter, detect the band pulley with the second and be connected with first detection band pulley 402, the motor drive second detects the band pulley and rotates, drive first detection band pulley 402 synchronous revolution, speed sensor detects the rotational speed of fourth pivot 401, can calculate the rotational speed that obtains the motor, need not to install speed sensor directly on the motor, avoid the motor rotational speed too fast to throw away speed sensor, reduce the influence of motor vibration to speed sensor, the testing result is accurate, it is simple to calculate.
As shown in fig. 3, in one embodiment, the vibration damping mechanism includes:
the two second wedge-shaped grooves 211 are symmetrically arranged on the side wall of the first sliding groove 201, and the second wedge-shaped grooves 211 are arranged above the first wedge-shaped groove 204; the wedge-shaped block 212 is slidably connected to the inner wall of the second wedge-shaped groove 211, and the bottom end of the wedge-shaped block 212 is fixedly connected with the first sliding block 202; the two sliding sleeves 214 are slidably connected to the outer sides of the first connecting rods 203; two third connecting rods 217 are symmetrically connected to each sliding sleeve 214, the other end of each third connecting rod 217 is connected to the wedge-shaped block 212, the top end and the bottom end of each sliding sleeve 214 are respectively connected to a spring 215, and the springs 215 are sleeved outside the first connecting rods 203.
The working principle and the beneficial effects of the technical scheme are as follows:
when the vibration damping mechanism is used, the first sliding block 202 moves upwards to push the wedge-shaped block 212 to slide upwards in the second wedge-shaped groove 211, the two wedge-shaped blocks 212 approach to each other, and one ends of the two third connecting rods 217 at the same side, which are connected with the sliding sleeve 214, are pushed to be away from each other, so that the sliding sleeve 214 is pushed to be away from each other, and the springs 215 at the two ends of the sliding sleeve 214 are compressed to generate a reaction force, so that the detection platform 3 is buffered in the vertical direction. Through above-mentioned structural design, spring 215 is established to the cover on first connecting rod 203, and spring 215 is in compression state all the time in the testing process, cushions the vibration of testing platform 3 vertical direction through the reaction force of spring, prevents that motor and device from producing resonance, reduces the noise in the testing process.
In one embodiment, a display device and an operation panel are connected to the outer surface of the control box 5, and a camera is connected to the side end of the control box 5 close to the detection platform 3.
The working principle and the beneficial effects of the technical scheme are as follows:
the display device on the surface of the control box is used for displaying the detection result of the rotating speed of the motor, the operation panel provides a visual operation interface for detection personnel, and the camera records the detection process of the motor in real time.
As shown in fig. 5, in an embodiment, a circulation heat sink is further disposed in the detection platform 3, and the circulation heat sink includes:
the shell 701 is fixedly connected to the middle inside the table body 30, and the height of the upper surface of the shell 701 is consistent with that of the upper surface of the table body 30;
a fourth cavity 702, wherein the fourth cavity 702 is opened inside the housing 701;
the upper groove 703 is formed in the top end of the shell 701, and the bottom end of the upper groove 703 is communicated with the fourth cavity 702;
the lower groove 704 is formed in the shell 701, the top end of the lower groove 704 is communicated with the fourth cavity 702, two side ends of the lower groove 704 are respectively connected with a touch switch, and the touch switches are electrically connected with the control box 5;
the side grooves 705 are symmetrically formed in the side end of the inner wall of the fourth cavity 702, and a plurality of first clamping teeth are uniformly arranged in the side grooves 705;
a first gear 706, wherein the first gear 706 is engaged with the first latch inside the side groove 705;
the mounting groove 707 is provided with a top end of the first gear 706, and a plurality of second clamping teeth are uniformly arranged on the inner wall of the mounting groove 707;
a fifth rotating shaft 708, wherein the fifth rotating shaft 708 is connected to the center of the first gear 706 through a bearing, and the top end of the fifth rotating shaft 708 extends into the mounting groove 707;
a third motor 709, wherein the third motor 709 is connected to the top end of the fifth rotating shaft 708, and the third motor 709 is electrically connected with the control box 5;
a sixth rotating shaft 710, wherein the sixth rotating shaft 710 is connected to an output end of the third motor 709, and the sixth rotating shaft 710 vertically extends into the upper groove 703;
the fan blade 711 is connected to the top end of the sixth rotating shaft 710;
a second gear 712, wherein the second gear 712 is connected to the sixth rotating shaft 710, and the second gear 712 is disposed inside the mounting groove 707;
a seventh rotating shaft 713, wherein the seventh rotating shaft 713 is fixedly connected to the inner wall of the mounting groove 707, and the seventh rotating shaft 713 is arranged in parallel with the sixth rotating shaft 710;
the third gear 714 is connected to the seventh rotating shaft 713, and the third gear 714 is simultaneously in meshing connection with the second gear 712 and a second latch on the inner wall of the mounting groove 707;
the connecting rod 715 is fixedly connected to the bottom end of the fifth rotating shaft 708, and the connecting rod 715 vertically extends downwards into the lower groove 704;
the pressing block 716 is slidably connected into the lower groove 704, and the pressing block 716 is fixedly connected with the connecting rod 715;
and the filter screen 717 is connected to the top end of the inner wall of the upper groove 703.
The working principle and the beneficial effects of the technical scheme are as follows:
when the motor is used for detecting the rotating speed, a large amount of heat is generated due to long-time running, the temperature of the motor is increased, so that a circulating heat dissipation device is arranged in the detection platform 3, when the circulating heat dissipation device is used, the filter screen 717 prevents dust above the platform body 30 from falling back, the third motor 709 is started through the control box 5, the sixth rotating shaft 710 is driven to rotate by the third motor 709, the sixth rotating shaft 710 drives the fan blade 711 and the second gear 712 to rotate synchronously, the fan blade 711 rotates to generate airflow which is blown to the motor to dissipate heat, the second gear 712 rotates to drive the third gear 714 to rotate, the third gear 714 is meshed with the inner wall of the mounting groove 707, so that the first gear 706 is driven to be meshed and transmitted in the side groove 705, the connecting rod 715 and the pressing block 716 move in the lower groove 704 along with the connecting rod, the pressing block 716 moves to one end of the lower groove 704 and then contacts with the touch, the first gear 706 drives the fan 711 to rotate in the opposite direction, so as to circularly dissipate heat of the motor.
Through above-mentioned structural design, automatic reciprocating motion is realized when flabellum 711 pivoted, blows the air current to the motor through flabellum 711, increases the area of contact of circulated air and motor, effectively realizes the comprehensive heat dissipation of motor, reduces the temperature of motor, compares in fixed fan, reduces fan blade area and installation space by a wide margin, reduces the heat dissipation dead angle of motor, prevents that local overheat from producing the influence to motor testing result in the motor testing process, has improved detection device's heat dispersion.
In one embodiment, the rotational speed detection apparatus for manufacturing a motor further includes:
the safety protection device is used for monitoring the temperature rise condition of the motor in real time, calculating the temperature rise of the motor under the normal operation condition according to a preset algorithm, determining whether to start the safety protection device according to the real-time temperature rise condition, and after the safety protection device is started, the safety protection device performs emergency power-off on the motor, wherein the specific steps of the preset algorithm are as follows:
step A1, solving the temperature rise under the condition of normal operation of the motor according to the following formula:
wherein, Delta T0In order to solve the temperature rise under the condition of normal operation of the motor, D is the diameter of the inner circle of the stator of the motor, and A is the heat between the motor and the environmentThe method comprises the following steps that rho is the conductor thermal resistivity of a motor stator, W is the number of turns of a coil of each phase of the motor stator, m is the phase number of the motor stator, I is the current intensity, S is the conductor sectional area of the motor stator, P is the rated power, and L is the core length of the motor stator;
step A2, according to the temperature rise delta T obtained in the step A1 under the condition that the motor normally runs0When the real-time temperature rise delta T and the temperature rise delta T under the condition of normal operation of the motor0When the difference value of the temperature difference value reaches a preset value, namely the real-time temperature rise is overhigh, the safety protection device is started at the moment, and when the real-time temperature rise delta T and the temperature rise delta T under the condition of normal running of the motor are realized0When the difference value does not reach the preset value, the safety protection device does not need to be started at the moment.
The working principle and the beneficial effects of the technical scheme are as follows:
by the calculation method, the temperature rise condition of the motor is monitored in real time, the heat loss of the current of the rotor is comprehensively considered, the temperature rise under the normal operation condition of the motor is calculated, a theoretical basis is provided for judging whether the temperature rise condition of the motor is in a reasonable range, calculation errors are reduced, the temperature rise under the normal operation condition of the motor is compared with the real-time temperature rise condition of the motor, and when the real-time temperature rise delta T and the temperature rise delta T under the normal operation condition of the motor are calculated0When the difference reach the default, real-time temperature rise is too high promptly, starts safety arrangement this moment, carries out urgent outage to the motor, and measurement personnel carries out the shutdown maintenance to the motor, prevents that the motor from leading to the high accident that causes of temperature because of the fault, improves motor testing process's security.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. A rotational speed detection device for motor manufacturing, characterized by comprising:
a base (1);
the lifting platform (2) is connected to the top end of the base (1), and a vibration damping mechanism is arranged in the lifting platform (2);
the detection platform (3) is connected to the top end of the lifting platform (2) in a sliding mode, and the top end of the detection platform (3) is connected with two clamping plates (6) in a sliding mode;
the rotating speed detection plate (4), the rotating speed detection plate (4) is connected to the side end of the detection platform (3);
the device comprises a control box (5), wherein the control box (5) is arranged on one side of the base (1), and the control box (6) is electrically connected with the base (1), the lifting platform (2), the detection platform (3) and the rotating speed detection plate (4).
2. The rotational speed detecting apparatus for motor manufacturing according to claim 1, wherein the elevating table (2) comprises: the lifting platform comprises a lifting platform body (20), a first sliding groove (201), a first sliding block (202), a first connecting rod (203) and a first wedge-shaped groove (204), wherein the lifting platform body (200) is fixedly connected to the top end of the base (1); the sliding chute (201) vertically penetrates through the lifting platform body (20); the first sliding block (202) is connected to the inner wall of the first sliding groove (201) in a sliding manner; the first connecting rod (203) is connected between the top end of the first sliding block (202) and a second sliding block fixedly connected with the bottom end of the detection platform (3); two first wedge groove (204) symmetry is seted up in elevating platform body (20) bottom, first wedge groove (204) and first spout (201) intercommunication setting.
3. The rotational speed detecting apparatus for manufacturing a motor according to claim 2, wherein the base (1) includes a base body (10) and a lifting mechanism connected to the base body (10), and the lifting mechanism (10) includes: the sliding block mechanism comprises a first cavity (101), a first rotating shaft (102), a third sliding block (103), a second sliding groove (104), a first belt wheel (105), a first motor (106), a second belt wheel (107) and a second connecting rod (108), wherein the first cavity (101) is arranged in the seat body (10), the top end of the first cavity (101) is open, and the first cavity (101) is communicated with a first wedge-shaped groove (204) and a first sliding groove (201); the first rotating shaft (102) is rotatably connected to the inner wall of the first cavity (101), the first rotating shaft (102) is horizontally arranged, and two threaded regions with opposite rotating directions are symmetrically arranged on the surface of the first rotating shaft (102); the two third sliding blocks (103) are respectively screwed in the two thread areas of the first rotating shaft (102), and the two third sliding blocks (103) are symmetrically arranged; the two second sliding grooves (104) are symmetrically formed in the bottom end of the inner wall of the first cavity (101), and the second sliding grooves (104) are respectively connected with the bottom end of a third sliding block (103) in a sliding mode; the first belt pulley (105) is mounted on the first rotating shaft (102), and the first belt pulley (105) is arranged outside one of the third sliding blocks (103); the first motor (106) is mounted at the top end of the seat body (10), the first motor (106) is arranged close to the first belt wheel (105), and the first motor (106) is electrically connected with the control box (5); the second belt wheel (107) is connected to an output shaft of the first motor (106), and the second belt wheel (107) is connected with the first belt wheel (105) through a synchronous belt; the two second connecting rods (108) are symmetrically arranged, the bottom ends of the two second connecting rods (108) are respectively connected with the two third sliding blocks (103), and the top ends of the two second connecting rods (108) are simultaneously connected with the bottom end of the first sliding block (202).
4. The rotating speed detection device for manufacturing the motor according to claim 1, wherein the detection platform (3) comprises a table body (30) and a clamping mechanism connected to one side inside the table body (30), and the clamping mechanism comprises:
the second cavity (301), the said second cavity (301) is opened in the said stage body (30);
the second rotating shaft (302) is rotatably connected to the inner wall of the second cavity (301), one end of the second rotating shaft (302) is connected with a second motor, and the second motor is electrically connected with the control box (5);
the first bevel gear (303), the said first bevel gear (303) is connected to the said second spindle (302);
the two second bevel gears (304) are respectively connected to two sides of the first bevel gear (303) in a meshed mode, and the two second bevel gears (304) are symmetrically arranged;
the third rotating shaft (305) is fixedly connected to the center of the second bevel gear (304), the third rotating shaft (305) extends in the direction away from the first bevel gear (303), and a plurality of threads are uniformly arranged on the outer side of the third rotating shaft (305);
a first push rod (306), wherein the first push rod (306) is screwed on one side of the third rotating shaft (305) far away from the first bevel gear (303);
a first push plate (307), wherein the first push plate (307) is connected to one side, away from the first bevel gear (303), of the first push rod (306), the first push plate (307) is in sliding connection with the inner wall of the second cavity (301), and a first sealing cavity (308) is formed between one side, away from the first bevel gear (303), of the first push plate (307) and the second cavity (301);
the fixing blocks (309) are symmetrically connected to the top end of the table body (30), and the positions of the fixing blocks (309) are matched with the positions of the clamping plates (6);
the pneumatic box (310) is fixedly connected to the top end of the fixing block (309), and the output end of the pneumatic box (310) is connected with the clamping plate (6);
a third cavity (311), wherein the third cavity (311) is arranged in the pneumatic box (310);
the second push plate (312) is connected to the inner wall of the third cavity (311) in a sliding mode, a second sealing cavity (313) is formed between one side, away from the clamping plate (6), of the second push plate (312) and the third cavity (311), and the second sealing cavity (313) is communicated with the first sealing cavity (308);
the second push rod (314), the second push rod (314) is fixedly connected to the side end of the second push plate (312), and the second push rod (314) horizontally penetrates through the pneumatic box (310) and is connected with the clamping plate (6).
5. The rotational speed detecting device for manufacturing a motor according to claim 1, wherein two of the clamping plates (6) are symmetrically arranged, and a flexible pad is connected to an end of one side of each of the two clamping plates (6) opposite to each other.
6. The rotational speed detecting device for manufacturing a motor according to claim 1, wherein a fourth rotating shaft (401) is connected to the rotational speed detecting plate (4), a first detecting pulley (402) is connected to the fourth rotating shaft (401), a second detecting pulley is connected to an output shaft of the motor during motor detection, the first detecting pulley (402) is connected to the second detecting pulley through a synchronous belt, a rotational speed sensor is connected to the rotational speed detecting plate (4), and the rotational speed sensor is electrically connected to the control box (5).
7. A rotation speed detecting apparatus for manufacturing an electric motor according to claim 2, wherein the vibration reducing mechanism includes: the two second wedge-shaped grooves (211) are symmetrically formed in the side wall of the first sliding groove (201), and the second wedge-shaped grooves (211) are arranged above the first wedge-shaped groove (204); the wedge-shaped block (212) is connected to the inner wall of the second wedge-shaped groove (211) in a sliding mode, and the bottom end of the wedge-shaped block (212) is fixedly connected with the first sliding block (202); the two sliding sleeves (214) are connected to the outer side of the first connecting rod (203) in a sliding manner; each sliding sleeve (214) is symmetrically connected with two third connecting rods (217), the other end of each third connecting rod (217) is connected with the wedge-shaped block (212), the top ends and the bottom ends of the two sliding sleeves (214) are respectively connected with a spring (215), and the springs (215) are sleeved on the outer side of the first connecting rod (203).
8. The rotating speed detection device for manufacturing the motor is characterized in that a display device and an operation panel are connected to the outer surface of the control box (5), and a camera is connected to the side end, close to the detection platform (3), of the control box (5).
9. The rotating speed detection device for manufacturing the motor according to claim 4, wherein a circulating heat dissipation device is further disposed in the detection platform (3), and the circulating heat dissipation device comprises:
the shell (701), the shell (701) is fixedly connected to the middle inside the table body (30), and the height of the upper surface of the shell (701) is consistent with that of the upper surface of the table body (30);
a fourth cavity (702), wherein the fourth cavity (702) is arranged inside the shell (701);
the upper groove (703) is formed in the top end of the shell (701), and the bottom end of the upper groove (703) is communicated with the fourth cavity (702);
the lower groove (704) is formed in the shell (701), the top end of the lower groove (704) is communicated with the fourth cavity (702), two side ends of the lower groove (704) are respectively connected with a touch switch, and the touch switches are electrically connected with the control box (5);
the side grooves (705) are symmetrically formed in the side end of the inner wall of the fourth cavity (702), and a plurality of first clamping teeth are uniformly arranged in the side grooves (705);
a first gear (706), wherein the first gear (706) is in meshed connection with a first clamping tooth inside the side groove (705);
the mounting groove (707) is provided with the top end of the first gear (706), and a plurality of second clamping teeth are uniformly arranged on the inner wall of the mounting groove (707);
a fifth rotating shaft (708), wherein the fifth rotating shaft (708) is connected to the center of the first gear (706) through a bearing, and the top end of the fifth rotating shaft (708) extends into the mounting groove (707);
the third motor (709), the third motor (709) is connected to the top end of the fifth rotating shaft (708), and the third motor (709) is electrically connected with the control box (5);
a sixth rotating shaft (710), wherein the sixth rotating shaft (710) is connected to an output end of the third motor (709), and the sixth rotating shaft (710) vertically extends into the upper groove (703);
the fan blade (711) is connected to the top end of the sixth rotating shaft (710);
a second gear (712), wherein the second gear (712) is connected to the sixth rotating shaft (710), and the second gear (712) is arranged in the mounting groove (707);
the seventh rotating shaft (713), the seventh rotating shaft (713) is fixedly connected to the inner wall of the mounting groove (707), and the seventh rotating shaft (713) is arranged in parallel with the sixth rotating shaft (710);
the third gear (714) is connected to the seventh rotating shaft (713), and the third gear (714) is simultaneously in meshing connection with the second gear (712) and a second clamping tooth on the inner wall of the mounting groove (707);
the connecting rod (715), the connecting rod (715) is fixedly connected to the bottom end of the fifth rotating shaft (708), and the connecting rod (715) vertically extends downwards into the lower groove (704);
the pressing block (716) is connected in the lower groove (704) in a sliding mode, and the pressing block (716) is fixedly connected with the connecting rod (715);
a filter screen (717), wherein the filter screen (717) is connected to the top end of the inner wall of the upper groove (703).
10. A rotation speed detecting apparatus for manufacturing a motor according to claim 1, further comprising: the safety protection device is used for monitoring the temperature rise condition of the motor in real time, calculating the temperature rise of the motor under the normal operation condition according to a preset algorithm, determining whether to start the safety protection device according to the real-time temperature rise condition, and after the safety protection device is started, the safety protection device performs emergency power-off on the motor, wherein the specific steps of the preset algorithm are as follows:
step A1, solving the temperature rise under the condition of normal operation of the motor according to the following formula:
wherein, Delta T0In order to solve the temperature rise under the condition of normal operation of the motor, D is the diameter of the inner circle of the stator of the motor, A is the thermal conductance between the motor and the environment, rho is the conductor thermal resistivity of the stator of the motor, W is the number of turns of a coil of each phase of the stator of the motor, m is the number of phases of the stator of the motor, I is the current intensity, S is the conductor sectional area of the stator of the motor, P is the rated power, and L is the length of a wire core of the stator of the motor;
step A2, according to the temperature rise delta T obtained in the step A1 under the condition that the motor normally runs0When the real-time temperature rise delta T and the temperature rise delta T under the condition of normal operation of the motor0When the difference value of the temperature difference value reaches a preset value, namely the real-time temperature rise is overhigh, the safety protection device is started at the moment, and when the real-time temperature rise delta T and the temperature rise delta T under the condition of normal running of the motor are realized0When the difference value does not reach the preset value, the safety protection device does not need to be started at the moment.
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013013200A (en) * | 2011-06-28 | 2013-01-17 | Nissan Motor Co Ltd | Vibration damping control device and vibration damping control method |
| CN108397406A (en) * | 2018-03-01 | 2018-08-14 | 广东新泰默洁净技术股份有限公司 | A kind of cleaning shop permanent wind pressure control system |
| CN208888266U (en) * | 2018-08-29 | 2019-05-21 | 中石大蓝天(青岛)石油技术有限公司 | A kind of speed detector for direct current generator |
| CN211105089U (en) * | 2019-12-04 | 2020-07-28 | 南京龙创高分子材料有限公司 | Ejecting equipment for finished silicone rubber insulator |
| CN211720404U (en) * | 2020-03-21 | 2020-10-20 | 辽宁赛能科技发展有限公司 | Equipment for explosion-proof asynchronous motor |
| CN111810794A (en) * | 2020-07-21 | 2020-10-23 | 宁夏威尔信商品混凝土有限公司 | Concrete production detection device for building |
| CN212418346U (en) * | 2020-05-30 | 2021-01-29 | 广州市丽泽化妆品有限公司 | Centrifuge is used in laboratory |
| CN212586782U (en) * | 2020-06-17 | 2021-02-23 | 金陵科技学院 | Heat radiator for computer machine case |
| CN112462253A (en) * | 2020-11-30 | 2021-03-09 | 闽江学院 | Circuit breaker operating mechanism performance detection device |
| CN112462084A (en) * | 2020-10-19 | 2021-03-09 | 芜湖赛宝机器人产业技术研究院有限公司 | Robot servo motor performance testing device |
-
2021
- 2021-03-11 CN CN202110265538.5A patent/CN112946474B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013013200A (en) * | 2011-06-28 | 2013-01-17 | Nissan Motor Co Ltd | Vibration damping control device and vibration damping control method |
| CN108397406A (en) * | 2018-03-01 | 2018-08-14 | 广东新泰默洁净技术股份有限公司 | A kind of cleaning shop permanent wind pressure control system |
| CN208888266U (en) * | 2018-08-29 | 2019-05-21 | 中石大蓝天(青岛)石油技术有限公司 | A kind of speed detector for direct current generator |
| CN211105089U (en) * | 2019-12-04 | 2020-07-28 | 南京龙创高分子材料有限公司 | Ejecting equipment for finished silicone rubber insulator |
| CN211720404U (en) * | 2020-03-21 | 2020-10-20 | 辽宁赛能科技发展有限公司 | Equipment for explosion-proof asynchronous motor |
| CN212418346U (en) * | 2020-05-30 | 2021-01-29 | 广州市丽泽化妆品有限公司 | Centrifuge is used in laboratory |
| CN212586782U (en) * | 2020-06-17 | 2021-02-23 | 金陵科技学院 | Heat radiator for computer machine case |
| CN111810794A (en) * | 2020-07-21 | 2020-10-23 | 宁夏威尔信商品混凝土有限公司 | Concrete production detection device for building |
| CN112462084A (en) * | 2020-10-19 | 2021-03-09 | 芜湖赛宝机器人产业技术研究院有限公司 | Robot servo motor performance testing device |
| CN112462253A (en) * | 2020-11-30 | 2021-03-09 | 闽江学院 | Circuit breaker operating mechanism performance detection device |
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