CN116087773B - Dynamic load simulation device of brushless direct current motor and application method thereof - Google Patents
Dynamic load simulation device of brushless direct current motor and application method thereof Download PDFInfo
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- CN116087773B CN116087773B CN202310361607.1A CN202310361607A CN116087773B CN 116087773 B CN116087773 B CN 116087773B CN 202310361607 A CN202310361607 A CN 202310361607A CN 116087773 B CN116087773 B CN 116087773B
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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
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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
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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
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Abstract
The invention provides a brushless direct current motor dynamic load simulation device and a using method thereof, wherein the device comprises a simulation mechanism, a levelness detection mechanism, a leveling mechanism and a fixing mechanism, wherein a motor body, the levelness detection mechanism and the leveling mechanism are connected to the simulation mechanism, and the fixing mechanism is connected to the leveling mechanism; the simulation mechanism comprises a bottom plate, a vertical plate, a first supporting plate, a ring body, a second supporting plate, an air bag mechanism and a labor-saving transmission mechanism, wherein the levelness detection mechanism comprises an L-shaped plate, a conductive wire, a conductive ball and a detection ring, and the L-shaped plate is fixedly connected to the simulation mechanism. The invention is convenient for adjusting the load size simulated by the device and the levelness of the device, thereby improving the accuracy of the simulation result.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a brushless direct current motor dynamic load simulation device and a using method thereof.
Background
The motor is an electromagnetic device for converting or transmitting electric energy according to the law of electromagnetic induction, the motor is denoted by letter M in a circuit, the main function of the motor is to generate driving torque, the motor is used as a power source of an electric appliance or various machines, the generator is denoted by letter G in the circuit, and the main function of the motor is to convert mechanical energy into electric energy.
In household electrical appliances such as fans, refrigerators, washing machines, smoke ventilators, dust collectors and the like, the working power of the household electrical appliances adopts motors, and the existing motor load simulation devices on the market at present have the defects of inconvenience in adjusting the load size simulated by the device and the levelness of the device, so that the problem of low accuracy of simulation results is caused.
Disclosure of Invention
Aiming at the technical problems, the invention aims to provide a brushless direct current motor dynamic load simulation device, which is realized by adopting the following technical scheme:
the utility model provides a brushless direct current motor dynamic load analogue means, includes analog mechanism, levelness detection mechanism, leveling mechanism and fixed establishment, and motor body, levelness detection mechanism and leveling mechanism all are connected on analog mechanism, and fixed establishment connects on leveling mechanism.
Preferably, the simulation mechanism comprises a bottom plate, a vertical plate, a first supporting plate, a ring body, a second supporting plate, an air bag mechanism and a labor-saving transmission mechanism, wherein the vertical plate is fixedly connected to the top wall of the bottom plate, the first supporting plate, the ring body and the second supporting plate are fixedly connected to the front wall of the vertical plate, the motor body is connected to the first supporting plate, one end of a power output shaft on the motor body is fixedly connected with a turntable, more than two rotating wheels are rotationally connected to the turntable, the air bag mechanism comprises an annular air bag, a connecting pipe and a spherical air bag, the annular air bag is connected with the spherical air bag through the connecting pipe, the annular air bag is fixedly connected to the inner wall of the ring body, the spherical air bag is fixedly connected to the top wall of the second supporting plate, and all the rotating wheels are propped against the inner wall of the annular air bag;
the labor-saving transmission mechanism comprises a mass block, a transmission column, a sliding plate, a fixed cylinder, a pull rod, a fixed plate and a permanent magnet plate, wherein the mass block is slidably connected to the front wall of the vertical plate, the transmission column is fixedly connected to the top wall of the mass block, ratchets are arranged on the transmission column, the fixed plate is fixedly connected to the front wall of the vertical plate, the sliding plate and the permanent magnet plate are slidably connected to the side wall of the fixed plate, the pull rod is fixedly connected to the sliding plate, the fixed cylinder is fixedly connected to the sliding plate, a first suction hole is formed in the sliding plate, a second suction hole is formed in the fixed cylinder, the front wall of the sliding plate is rotationally connected with a V-shaped magnetic part, the front wall of the sliding plate is fixedly connected with a connecting piece, the bottom wall of the V-shaped magnetic part is connected with the connecting piece through an elastic piece, the right end of the V-shaped magnetic part is meshed with the ratchets, the inner wall of the fixed cylinder is rotationally connected with a rotating rod, a rotating seat is fixedly connected with a magnetic pawl, and the magnetic pawl is rotationally connected to the rotating seat.
Preferably, the levelness detection mechanism comprises an L-shaped plate, a conductive wire, a conductive ball and a detection ring, wherein the L-shaped plate is fixedly connected to the simulation mechanism, the conductive ball is hung on the L-shaped plate through the conductive wire, the detection ring is fixedly connected to the L-shaped plate, the detection ring is provided with a detection hole, and the conductive ball is positioned in the detection hole;
the detection ring is provided with a processing module and four series mechanisms, the series mechanisms comprise conducting strips, electronic elements and batteries, the four conducting strips are fixedly connected to four different hole walls of the detection hole respectively, the processing module, the electronic elements and the batteries are arranged in the detection ring, the conducting strips are electrically connected with the electronic elements, the electronic elements are electrically connected with the batteries, the batteries are electrically connected with the conducting wires, and the four electronic elements are electrically connected with the processing module respectively;
the leveling mechanism comprises a base and four air cylinders, wherein the four air cylinders are connected to the top wall of the base, piston rods on the air cylinders are connected with the simulation mechanism through universal joints, and the four air cylinders are respectively and electrically connected with the processing module.
Preferably, the fixing mechanism comprises an L-shaped box, the L-shaped box is fixedly connected to the leveling mechanism, a transmission cavity is formed in the L-shaped box, a clamping mechanism is arranged in the transmission cavity, and the clamping mechanism comprises a clamping piece, a first transmission rod, a first transmission plate, a push plate, a second transmission rod, a second transmission plate, a third transmission rod, a pressing plate and an L-shaped rod;
the first transmission plate and the second transmission plate are respectively connected to the side wall of the transmission cavity in a sliding mode, the L-shaped rod is connected to the side wall of the transmission cavity in a rotating mode, the clamping piece is connected with the first transmission plate through the first transmission rod, the first transmission plate is provided with a first channel, one end of the first transmission rod extends out of the L-shaped box, the clamping piece is located out of the L-shaped box, the push plate is connected with the second transmission plate through the second transmission rod, the pressing plate is connected with the second transmission plate through the third transmission rod, the second transmission plate is provided with a second channel, one end of the second transmission rod extends out of the L-shaped box, the second transmission plate is located in the L-shaped box, one end of the third transmission rod extends out of the L-shaped box, the pressing plate is located out of the L-shaped box, a first rod body and a second rod body are fixedly connected to the side wall of the first channel in a sliding mode, the second rod body is connected to the side wall of the second channel in a sliding mode, and the front wall of the L-shaped box is fixedly connected with a handle.
Preferably, the vertical plate is fixedly connected with a cooling device, the cooling device is annular, the top wall of the second support plate is inlaid with a pressure sensor, the spherical air bag is fixedly connected with the pressure sensor, the first support plate is fixedly connected with a motor base, and the motor body is detachably connected to the motor base.
Preferably, the conductive wire and the conductive ball are both made of iron.
Preferably, the side wall of the transmission cavity is fixedly connected with a first rail and a second rail, the first transmission plate is slidably connected to the first rail, and the second transmission plate is slidably connected to the second rail.
Preferably, a silica gel layer is arranged on the top wall of the clamping piece.
The application method of the brushless direct current motor dynamic load simulation device comprises the following steps:
the simulation device is fixed on a table through the fixing mechanism, levelness of the simulation device is detected through the levelness detection mechanism, the simulation device is adjusted to be in a horizontal state by the leveling mechanism according to the detection result, and the motor body is started to carry out load simulation test.
The invention has the following beneficial effects:
the invention can conveniently transmit gas between the annular air bag and the spherical air bag in a labor-saving way through the labor-saving transmission mechanism, thereby changing the volume of the annular air bag, changing the load of the motor body, being convenient to use and ingenious in design; the levelness of the simulation mechanism is automatically measured through the conductive balls, the inclined direction is measured through different conductive sheets, and the electronic element is analyzed through the processing module, so that the levelness of the simulation mechanism is adjusted by controlling the corresponding air cylinder, larger deviation of measured data of the motor body can not be caused, the efficiency in simulation is improved, and the simulation mechanism is suitable for various conditions; the fixing mechanism can conveniently and rapidly fix and dismount the simulation mechanism on tables with different thicknesses, so that the simulation mechanism is prevented from moving or a user is prevented from carelessly bumping against the simulation mechanism, other tools are not needed, and complicated screw fixation is not needed.
Drawings
The invention will be further described with reference to the accompanying drawings, in which embodiments do not constitute any limitation of the invention, and other drawings can be obtained by one of ordinary skill in the art without inventive effort from the following drawings.
FIG. 1 is a schematic diagram of a dynamic load simulator for a brushless DC motor according to the present invention;
FIG. 2 is an enlarged view of the invention at A in FIG. 1;
FIG. 3 is an enlarged view of the level detection mechanism of FIG. 1 in accordance with the present invention;
FIG. 4 is a top view of the sense loop of FIG. 3 in accordance with the present invention;
FIG. 5 is a circuit connection diagram of the sense loop of FIG. 3 in accordance with the present invention;
FIG. 6 is a right side view of the mounting plate of FIG. 1 in accordance with the present invention;
FIG. 7 is a top view of the base and cylinder of FIG. 1 in accordance with the present invention;
FIG. 8 is a left side view of the ring body of FIG. 1 in accordance with the present invention;
fig. 9 is a left side view of the securing mechanism of fig. 1 in accordance with the present invention.
Reference numerals: the base 1, the cylinder 2, the bottom plate 3, the vertical plate 4, the motor body 5, the power output shaft 6, the turntable 7, the rotating wheel 8, the first support plate 9, the motor base 10, the annular air bag 11, the ring body 12, the second support plate 13, the pressure sensor 131, the connecting tube 14, the spherical air bag 15, the mass block 16, the driving post 17, the ratchet 18, the slide plate 19, the first suction hole 20, the fixed cylinder 21, the second suction hole 22, the v-shaped magnetic member 23, the elastic sheet 24, the connecting piece 25, the magnetic pawl 26, the rotating seat 27, the rotating rod 28, the pull rod 29, the fixed plate 30, the permanent magnet plate 31, the l-shaped plate 32, the electric wire 33, the electric ball 34, the detection ring 35, the detection hole 36, the electric sheet 37, the l-shaped case 38, the table 39, the driving chamber 40, the clip 41, the first driving rod 42, the first driving plate 43, the first passage 44, the first rail 45, the push plate 46, the second driving rod 47, the second driving plate 48, the second passage 49, the third driving rod 51, the pressing plate 52, the l-shaped rod 53, the first rod 54, the second rod 55, the universal joint 57, the battery pack 57, the output port 56, the cooling device 60.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, connected via an intermediary, or connected by communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
As shown in fig. 1-9, a brushless dc motor dynamic load simulator includes a simulation mechanism, a levelness detection mechanism, a leveling mechanism, and a fixing mechanism, where the motor body 5, the levelness detection mechanism, and the leveling mechanism are all connected to the simulation mechanism, and the fixing mechanism is connected to the leveling mechanism.
According to an alternative embodiment of the invention, the simulation mechanism comprises a bottom plate 3, a vertical plate 4, a first supporting plate 9, a ring body 12, a second supporting plate 13, an air bag mechanism and a labor-saving transmission mechanism, wherein the vertical plate 4 is fixedly connected to the top wall of the bottom plate 3, the first supporting plate 9, the ring body 12 and the second supporting plate 13 are fixedly connected to the front wall of the vertical plate 4, the motor body 5 is connected to the first supporting plate 9, one end of a power output shaft 6 on the motor body 5 is fixedly connected with a rotary disc 7, more than two rotary wheels 8 are rotatably connected to the rotary disc 7, the air bag mechanism comprises an annular air bag 11, a connecting pipe 14 and a spherical air bag 15, the annular air bag 11 is connected with the spherical air bag 15 through the connecting pipe 14, the annular air bag 11 is fixedly connected to the inner wall of the ring body 12, the spherical air bag 15 is fixedly connected to the top wall of the second supporting plate 13, and all the rotary wheels 8 are abutted against the inner wall of the annular air bag 11;
the labor-saving transmission mechanism comprises a mass block 16, a transmission column 17, a sliding plate 19, a fixed cylinder 21, a pull rod 29, a fixed plate 30 and a permanent magnet plate 31, wherein the mass block 16 is connected to the front wall of the vertical plate 4 in a sliding manner, the transmission column 17 is fixedly connected to the top wall of the mass block 16, ratchets 18 are arranged on the transmission column 17, the fixed plate 30 is fixedly connected to the front wall of the vertical plate 4, the sliding plate 19 and the permanent magnet plate 31 are both connected to the side wall of the fixed plate 30 in a sliding manner, the pull rod 29 is fixedly connected to the sliding plate 19, the fixed cylinder 21 is fixedly connected to the sliding plate 19, a first suction hole 20 is formed in the sliding plate 19, a second suction hole 22 is formed in the fixed cylinder 21, the front wall of the sliding plate 19 is rotationally connected with a V-shaped magnetic member 23, a connecting piece 25 is fixedly connected to the front wall of the V-shaped magnetic member 23 through an elastic piece 24 and the connecting piece 25, the right end of the V-shaped magnetic member 23 is meshed with the ratchets 18, a rotating rod 28 is rotationally connected to the inner wall of the fixed cylinder 21, a rotating seat 27 is fixedly connected to the rotating seat 27, a magnetic pawl 26 is rotationally connected to the rotating seat 27 on the rotating seat 27, and the magnetic pawl 26 is meshed with the ratchets 18.
The implementation process comprises the following steps: the motor body 5 is started, the power output shaft 6 drives the turntable 7 to rotate, and the rotating wheel 8 on the turntable 7 and the annular air bag 11 are propped against each other to generate friction force, so that the load simulation effect of the motor body 5 is achieved.
The annular air bag 11 and the spherical air bag 15 are filled with air, and the annular air bag 11 and the spherical air bag 15 are made of materials capable of being elastically deformed.
When the load of the motor body 5 needs to be increased, firstly, the permanent magnet plate 31 moves towards the sliding plate 19 until the permanent magnet plate 31 is propped against the sliding plate 19, the V-shaped magnetic force piece 23 is attracted and fixed through the first attraction hole 20, the V-shaped magnetic force piece 23 is prevented from rotating, the permanent magnet plate 31 attracts and fixes the magnetic pawl 26 through the second attraction hole 22, the magnetic pawl 26 is prevented from rotating, the sliding plate 19 moves backwards along the fixed plate 30 by pulling the pull rod 29, meanwhile, the permanent magnet plate 31 is driven to move backwards, the V-shaped magnetic force piece 23 and the magnetic pawl 26 are disengaged from the ratchet 18, the mass block 16 moves downwards under the self gravity after losing the support, the spherical air bag 15 is extruded, air in the spherical air bag 15 enters the annular air bag 11 through the connecting pipe 14, the annular air bag 11 is expanded, the extrusion degree of the rotating wheel 8 is increased, and the friction force between the annular air bag 11 and the rotating wheel 8 is increased, and the load of the motor body 5 is increased.
When the load of the motor body 5 needs to be reduced, the sliding plate 19 and the permanent magnet plate 31 are moved forwards, the V-shaped magnetic piece 23 and the magnetic pawl 26 are meshed with the ratchet 18 again, the permanent magnet plate 31 is moved backwards, the permanent magnet plate 31 does not attract the V-shaped magnetic piece 23 and the magnetic pawl 26 any more, the right end of the rotating rod 28 is moved upwards, the rotating rod 28 rotates anticlockwise, the magnetic pawl 26 moves onto the ratchet 18 below, the magnetic pawl 26 does not drive the transmission column 17 to move when moving downwards, the right end of the rotating rod 28 is pressed downwards, the rotating rod 28 rotates clockwise, the magnetic pawl 26 drives the transmission column 17 and the mass block 16 upwards through the ratchet 18, the V-shaped magnetic piece 23 can reciprocate under the elastic force of the elastic piece 24, finally the V-shaped magnetic piece 23 can clamp the ratchet 18 to prevent the transmission column 17 and the mass block 16 from falling downwards, after the mass block 16 moves upwards for a certain distance, the extrusion degree of the spherical air bag 15 by the mass block 16 is reduced, the part in the annular air bag 11 is pushed downwards by the elastic force of the annular air bag 11, the friction force between the annular air bag 11 and the annular air bag 11 is reduced by the annular connecting pipe 8, and the friction force between the annular air bag 11 and the annular air bag is reduced, and the annular air bag 11 is reduced, and the friction force is reduced, and the air bag is completely protected. The rotating lever 28 can be moved back and forth to gradually reduce the load of the motor body 5. It can be seen from fig. 1 that the power arm length of the lever 28 is greater than the resistance arm, so that the mass 16 can be moved up with little effort.
The motor body 5 may be a brushless dc motor.
The invention can conveniently transmit gas between the annular air bag 11 and the spherical air bag 15 by a labor-saving transmission mechanism, thereby changing the volume of the annular air bag 11, changing the load of the motor body 5, and having convenient use and ingenious design.
According to an alternative embodiment of the present invention, the levelness detecting mechanism includes an L-shaped plate 32, a conductive wire 33, a conductive ball 34, and a detecting ring 35, where the L-shaped plate 32 is fixedly connected to the analog mechanism, the conductive ball 34 is suspended on the L-shaped plate 32 by the conductive wire 33, the detecting ring 35 is fixedly connected to the L-shaped plate 32, the detecting ring 35 is provided with a detecting hole 36, and the conductive ball 34 is located in the detecting hole 36;
the detection ring 35 is provided with a processing module and four series mechanisms, the series mechanisms comprise conducting strips 37, electronic elements 57 and batteries 58, the four conducting strips 37 are fixedly connected to four different hole walls of the detection hole 36 respectively, the processing module, the electronic elements 57 and the batteries 58 are arranged in the detection ring 35, the conducting strips 37 are electrically connected with the electronic elements 57, the electronic elements 57 are electrically connected with the batteries 58, the batteries 58 are electrically connected with the conducting wires 33, and the four electronic elements 57 are electrically connected with the processing module respectively;
the leveling mechanism comprises a base 1 and four air cylinders 2, wherein the four air cylinders 2 are all connected to the top wall of the base 1, piston rods on the air cylinders 2 are connected with the simulation mechanism through universal joints 56, and the four air cylinders 2 are respectively and electrically connected with the processing module.
The implementation process comprises the following steps: when the simulation mechanism is in a horizontal state, the conductive balls 34 are not in contact with the conductive sheets 37, when the simulation mechanism is in a non-horizontal state, the conductive balls 34 are in contact with one or two conductive sheets 37, one or two series circuits are connected at the moment, one or two electronic components 57 are in a power-on state, after the processing module detects the electronic components 57 in the power-on state, the processing module controls the extension of piston rods on the corresponding cylinders 2 to adjust the simulation mechanism to the horizontal state, and referring to fig. 4 and 6, for example, the conductive balls 34 are abutted against the upper conductive sheets 37, the processing module controls the extension of piston rods of the cylinders 2 above, for example, the conductive balls 34 are abutted against the upper conductive sheets 37 and the left conductive sheets 37, and the processing module controls the extension of piston rods of the cylinders 2 above and controls the extension of the piston rods of the cylinders 2 left cylinders, and similarly, when other conditions are available, how the leveling mechanism adjusts the simulation mechanism to the horizontal state.
According to the embodiment, the levelness of the simulation mechanism is automatically measured through the conductive balls 34, the inclined direction is measured through different conductive sheets 37, and the electronic element 57 is analyzed through the processing module, so that the levelness of the simulation mechanism is controlled to be adjusted through the corresponding air cylinder 2, larger deviation of measured data of the motor body 5 can not be caused, the efficiency in simulation is improved, and the simulation mechanism is suitable for various conditions.
In an alternative embodiment of the present invention, the fixing mechanism includes an L-shaped case 38, the L-shaped case 38 is fixedly connected to the leveling mechanism, a transmission cavity 40 is formed in the L-shaped case 38, a clamping mechanism is disposed in the transmission cavity 40, and the clamping mechanism includes a clamping piece 41, a first transmission rod 42, a first transmission plate 43, a push plate 46, a second transmission rod 47, a second transmission plate 48, a third transmission rod 51, a pressing plate 52 and an L-shaped rod 53;
the first transmission plate 43 and the second transmission plate 48 are respectively and slidably connected to the side wall of the transmission cavity 40, the L-shaped rod 53 is rotatably connected to the side wall of the transmission cavity 40, the clamping piece 41 is connected to the first transmission plate 43 through the first transmission rod 42, the first transmission plate 43 is provided with a first channel 44, one end of the first transmission rod 42 extends out of the L-shaped box 38, the clamping piece 41 is located out of the L-shaped box 38, the push plate 46 is connected to the second transmission plate 48 through the second transmission rod 47, the pressing plate 52 is connected to the second transmission plate 48 through the third transmission rod 51, one end of the second transmission rod 47 extends out of the L-shaped box 38, the second transmission plate 48 is located in the L-shaped box 38, one end of the third transmission rod 51 extends out of the L-shaped box 38, the pressing plate 52 is located out of the L-shaped box 38, the L-shaped rod 53 is fixedly connected with a first rod 54 and a second rod 55, the first rod 54 is slidably connected to the side wall of the first channel 44, the second rod 55 is slidably connected to the side wall of the second channel 49, and the front wall 381 of the L-shaped box 38 is fixedly connected to the handle.
The implementation process comprises the following steps: referring to fig. 9, when the simulation mechanism is required to be fixed on the table 39, the edge of the table 39 is used to push the push plate 46, so that the push plate 46 moves to the right, thereby driving the second transmission plate 48 and the pressing plate 52 to move to the right, and when the second transmission plate 48 moves to the right, the second rod 55 moves down along the second channel 49, driving the L-shaped rod 53 to rotate clockwise, and the first rod 54 moves to the right along the first channel 44, so that the first transmission plate 43 moves upward, thereby enabling the first transmission plate 43 and the leveling mechanism to clamp the table 39.
When the release is desired, one hand holds the handle 381 and the other hand pushes the pressure plate 52 to the left, moving the L-shaped case 38 to the right and the clip 41 downward, thereby releasing the grip.
According to the embodiment, the simulation mechanism can be conveniently and rapidly fixed and removed from tables with different thicknesses through the fixing mechanism, the simulation mechanism is prevented from moving or a user is prevented from carelessly bumping against the simulation mechanism, other tools are not needed, and complicated screw fixation is not needed.
According to an alternative embodiment of the present invention, the cooling device 59 is fixedly connected to the vertical plate 4, the cooling device 59 is in a ring shape, the top wall of the second support plate 13 is embedded with the pressure sensor 131, the spherical air bag 15 is fixedly connected to the pressure sensor 131, the first support plate 9 is fixedly connected to the motor base 10, and the motor body 5 is detachably connected to the motor base 10.
The cooling device 59 may be a cold air device or a cold water spraying device, and the cold source output port 60 on the cooling device 59 can spray cold air or cold water to cool the contact part between the rotating wheel 8 and the annular air bag 11.
The pressure sensor 131 can acquire the degree of change in the pressure value received by the spherical air bag 15, thereby judging the degree of change in the load of the motor body 5.
In an alternative embodiment according to the present invention, the conductive wire 33 and the conductive ball 34 are both made of iron.
In an alternative embodiment of the present invention, the side wall of the transmission cavity 40 is fixedly connected with a first rail 45 and a second rail 50, the first transmission plate 43 is slidably connected to the first rail 45, and the second transmission plate 48 is slidably connected to the second rail 50.
In an alternative embodiment of the present invention, the top wall of the clip 41 is provided with a silicone layer. The silicone layer can increase the friction between the clip 41 and the table 39, increasing stability.
The application method of the brushless direct current motor dynamic load simulation device comprises the following steps:
the simulation device is fixed on a table 39 through a fixing mechanism, levelness of the simulation device is detected through a levelness detection mechanism, the simulation device is adjusted to be in a horizontal state by a leveling mechanism according to a detection result, and the motor body 5 is started to perform load simulation test.
The components, modules, mechanisms, devices, etc. of the invention, which do not describe the structure in detail, are all common standard components or components known to those skilled in the art, and the structure and principle thereof are all known by those skilled in the art through technical manuals or through routine experimental methods.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention.
Claims (6)
1. The dynamic load simulation device of the brushless direct current motor is characterized by comprising a simulation mechanism, a levelness detection mechanism, a leveling mechanism and a fixing mechanism, wherein the motor body (5), the levelness detection mechanism and the leveling mechanism are connected to the simulation mechanism, and the fixing mechanism is connected to the leveling mechanism;
the simulation mechanism comprises a bottom plate (3), a vertical plate (4), a first supporting plate (9), a ring body (12), a second supporting plate (13), an air bag mechanism and a labor-saving transmission mechanism, wherein the vertical plate (4) is fixedly connected to the top wall of the bottom plate (3), the first supporting plate (9), the ring body (12) and the second supporting plate (13) are fixedly connected to the front wall of the vertical plate (4), the motor body (5) is connected to the first supporting plate (9), one end of a power output shaft (6) on the motor body (5) is fixedly connected with a rotary disc (7), more than two rotary wheels (8) are rotatably connected to the rotary disc (7), the air bag mechanism comprises an annular air bag (11), a connecting pipe (14) and a spherical air bag (15), the annular air bag (11) is fixedly connected to the inner wall of the ring body (12), the spherical air bag (15) is fixedly connected to the top wall of the second supporting plate (13), and all the rotary wheels (8) are propped against the inner wall of the annular air bag (11);
the labor-saving transmission mechanism comprises a mass block (16), a transmission column (17), a sliding plate (19), a fixed cylinder (21), a pull rod (29), a fixed plate (30) and a permanent magnet plate (31), wherein the mass block (16) is slidably connected to the front wall of the vertical plate (4), the transmission column (17) is fixedly connected to the top wall of the mass block (16), a ratchet (18) is arranged on the transmission column (17), the fixed plate (30) is fixedly connected to the front wall of the vertical plate (4), the sliding plate (19) and the permanent magnet plate (31) are slidably connected to the side wall of the fixed plate (30), the pull rod (29) is fixedly connected to the sliding plate (19), the fixed cylinder (21) is fixedly connected to the sliding plate (19), a first suction hole (20) is formed in the sliding plate (19), a second suction hole (22) is formed in the fixed cylinder (21), a V-shaped magnetic member (23) is rotatably connected to the front wall of the sliding plate (19), a connecting piece (25) is fixedly connected to the front wall of the sliding plate (19), the bottom wall of the V-shaped magnetic member (23) is connected to the connecting piece (25) through an elastic piece (24) and the connecting piece (25), the right magnetic member (23) is fixedly connected to the ratchet (21) and the inner wall (21) is meshed with a rotating seat (28), a rotating seat (27) and a rotating seat (27) is fixedly connected to the rotating seat (27), the magnetic pawl (26) is meshed with the ratchet (18);
when the load of the motor body (5) needs to be increased, the mass block (16) moves downwards under the self gravity after losing the support, the spherical air bag (15) is extruded, so that air in the spherical air bag (15) enters the annular air bag (11) through the connecting pipe (14), when the load of the motor body (5) needs to be reduced, after the mass block (16) moves upwards for a certain distance, the extrusion degree of the mass block (16) on the spherical air bag (15) is reduced, and part of air in the annular air bag (11) can flow back into the spherical air bag (15) through the connecting pipe (14) under the rebound force of the annular air bag (11);
the levelness detection mechanism comprises an L-shaped plate (32), a conductive wire (33), a conductive ball (34) and a detection ring (35), wherein the L-shaped plate (32) is fixedly connected to the simulation mechanism, the conductive ball (34) is suspended on the L-shaped plate (32) through the conductive wire (33), the detection ring (35) is fixedly connected to the L-shaped plate (32), the detection ring (35) is provided with a detection hole (36), and the conductive ball (34) is positioned in the detection hole (36);
the detection ring (35) is provided with a processing module and four series mechanisms, each series mechanism comprises a conducting plate (37), an electronic element (57) and a battery (58), the four conducting plates (37) are fixedly connected to four different hole walls of the detection hole (36) respectively, the processing module, the electronic element (57) and the battery (58) are all arranged in the detection ring (35), the conducting plates (37) are electrically connected with the electronic element (57), the electronic element (57) is electrically connected with the battery (58), the battery (58) is electrically connected with the conducting wire (33), and the four electronic elements (57) are electrically connected with the processing module respectively;
the leveling mechanism comprises a base (1) and four air cylinders (2), wherein the four air cylinders (2) are connected to the top wall of the base (1), piston rods on the air cylinders (2) are connected with the simulation mechanism through universal joints (56), and the four air cylinders (2) are respectively and electrically connected with the processing module;
the fixing mechanism comprises an L-shaped box (38), the L-shaped box (38) is fixedly connected to the leveling mechanism, a transmission cavity (40) is formed in the L-shaped box (38), a clamping mechanism is arranged in the transmission cavity (40), and the clamping mechanism comprises a clamping piece (41), a first transmission rod (42), a first transmission plate (43), a push plate (46), a second transmission rod (47), a second transmission plate (48), a third transmission rod (51), a pressing plate (52) and an L-shaped rod (53);
the first transmission plate (43) and the second transmission plate (48) are respectively and slidingly connected to the side wall of the transmission cavity (40), the L-shaped rod (53) is rotationally connected to the side wall of the transmission cavity (40), the clamping piece (41) is connected with the first transmission plate (43) through the first transmission rod (42), the first transmission plate (43) is provided with a first channel (44), one end of the first transmission rod (42) extends to the outside of the L-shaped box (38), the clamping piece (41) is positioned outside the L-shaped box (38), the push plate (46) is connected with the second transmission plate (48) through the second transmission rod (47), the pressing plate (52) is connected with the second transmission plate (48) through a third transmission rod (51), the second transmission plate (48) is provided with a second channel (49), one end of the second transmission rod (47) extends to the outside of the L-shaped box (38), one end of the third transmission rod (51) extends to the outside of the L-shaped box (38), the pressing plate (52) is positioned outside the L-shaped box (38), the second channel (55) is fixedly connected with the second channel (54) through the second channel (55), the front wall of the L-shaped box (38) is fixedly connected with a handle (381).
2. The brushless direct current motor dynamic load simulation device according to claim 1, wherein the vertical plate (4) is fixedly connected with a cooling device (59), the cooling device (59) is annular, a pressure sensor (131) is embedded in the top wall of the second support plate (13), the spherical air bag (15) is fixedly connected to the pressure sensor (131), the first support plate (9) is fixedly connected with a motor base (10), and the motor body (5) is detachably connected to the motor base (10).
3. A brushless dc motor dynamic load simulator as claimed in claim 2, wherein the conductive wire (33) and the conductive ball (34) are made of iron.
4. A brushless dc motor dynamic load simulator as claimed in claim 3, wherein the side wall of the transmission chamber (40) is fixedly connected with a first rail (45) and a second rail (50), the first transmission plate (43) is slidably connected to the first rail (45), and the second transmission plate (48) is slidably connected to the second rail (50).
5. A brushless dc motor dynamic load simulator as claimed in claim 4, wherein the top wall of the clip (41) is provided with a silicone layer.
6. A method for using a brushless dc motor dynamic load simulator according to any one of claims 1 to 5, comprising the steps of:
the simulation device is fixed on a table (39) through a fixing mechanism, levelness of the simulation device is detected through a levelness detection mechanism, the simulation device is adjusted to be in a horizontal state by a leveling mechanism according to a detection result, and the motor body (5) is started to carry out load simulation test.
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