CN114544054A - Air resistance type water pump driving motor torque testing device and using method thereof - Google Patents
Air resistance type water pump driving motor torque testing device and using method thereof Download PDFInfo
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- CN114544054A CN114544054A CN202210454525.7A CN202210454525A CN114544054A CN 114544054 A CN114544054 A CN 114544054A CN 202210454525 A CN202210454525 A CN 202210454525A CN 114544054 A CN114544054 A CN 114544054A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
- G01L5/0042—Force sensors associated with force applying means applying a torque
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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
- 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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Abstract
The invention discloses a torque testing device for a driving motor of an air resistance type water pump and a using method thereof. The invention belongs to the technical field of motor torque testing, and particularly relates to a torque testing device for a driving motor of an air-resistance type water pump and a using method thereof; in the process of driving the piston plate to slowly move by the driving force of the motor, the pressure applied to the piston plate framework from the outside is always balanced with the driving force of the motor, so that the contradiction that the test is complicated and is not too large or too small is overcome, and the technical problem that the test load is difficult to continuously increase and decrease in the test process is solved.
Description
Technical Field
The invention belongs to the technical field of motor torque testing, and particularly relates to a torque testing device for a driving motor of an air-resistance type water pump and a using method thereof.
Background
The water pump can work only by being driven by the motor, in actual work, the driving force of the water pump is directly influenced by the performance of the motor, wherein the peak torque of the motor is a very important technical parameter, and each motor for hydraulic engineering needs to be subjected to torsion value testing during quality detection.
The traditional torsion test mode principle is very simple, and the torsion value of the motor can be measured out by lifting the weight of a heavy object, but the measurement mode has certain disadvantages: detecting motors of different types, and replacing different basic loads; if the load is too large, the small motor is difficult to drive, and if the load is too small, the large motor can be easily driven, so that the detection effect cannot be achieved; and the load cannot be continuously varied during the test.
In order to overcome the above defects, in a more precise torque measurement scene in the market at present, a mode of two sets of motors for torque alignment is often adopted, and a torque value is fed back through a precise mechanical sensing element, but the mode has the following disadvantages:
a: the manufacturing cost is high, and the popularization is not facilitated;
b: in the whole testing process, the motor shaft is in a stop state, so that the motor is extremely easy to overheat and damage;
c: the measurement range of the mechanical sensor is limited, and the test method can only measure the motor with the torque within a certain range, so that the limitation is large;
d: if a spring is used as the load, a large motor may pull the spring to a plastic deformation range, causing irrecoverable damage.
In order to overcome the problems, the invention mainly provides a torque testing device of a driving motor of an air resistance type water pump, which has the advantages of ingenious structure and low price, and can protect a testing motor and prevent the testing motor from being damaged, and a using method thereof.
Disclosure of Invention
Aiming at the situation and overcoming the defects of the prior art, the invention provides a torque testing device of a driving motor of a gas-resistance type water pump and a using method thereof, aiming at the contradictory characteristics that when the torque value of the motor is tested, the load or the resistance is not too large (the small motor is difficult to drive) and not too small (the large motor can easily drive).
The invention discloses an electromagnetic resistance type overload protection device based on the principle of pre-reaction, wherein an electromagnetic resistance type overload protection device is creatively provided, magnetic flux in an induction coil is changed through a torsion value increasing process (namely a pulling plate sliding process), so that induced current capable of pushing a low-resistance sliding magnetic ring away is generated in an execution coil, the low-resistance sliding magnetic ring and a weak magnetic partition plate can be adsorbed together through magnetic attraction after a sliding pulling plate is static, and the technical effect of automatically triggering a power-off switch when the motor reaches peak torque is realized only by virtue of a smart structure under the condition of no force sensor.
Moreover, after the outage, the motor reverses under the effect of pulling force, and the inside induced-current that can produce and stop the motor rotation of motor prevents that the piston from kick-backing fast and causing the damage to motor or testing arrangement.
The technical scheme adopted by the invention is as follows: the invention discloses a torque testing device of a driving motor of an air resistance type water pump and a using method thereof.
Furthermore, the electromagnetic resistance type overload protection device comprises a balance piston plate assembly and an electromagnetic touch switch, wherein the balance piston plate assembly is clamped and slidably arranged in the air resistance type torque countermeasure device, and the electromagnetic touch switch is arranged on the balance piston plate assembly.
Preferably, the balance piston plate assembly comprises a fully-wrapped piston bag, a piston plate framework, a piston pulling plate connecting upright post, a sliding pulling plate and an umbrella-shaped winch fixing round platform, the fully-wrapped piston bag can change the resistance when sliding, the fully-wrapped piston bag is clamped and slidably arranged in the air resistance type torque resisting device, the fully-wrapped piston bag has a sealing function, piston bag avoiding holes are annularly and uniformly distributed in the fully-wrapped piston bag, a piston bag central hole is formed in the fully-wrapped piston bag, the piston plate framework is clamped and arranged in the fully-wrapped piston bag, the piston pulling plate connecting upright posts are annularly and uniformly distributed on the piston plate framework, the piston pulling plate connecting upright posts are clamped and arranged in the piston bag avoiding holes, the sliding pulling plate is provided with a piston pulling plate connecting upright post, a pulling plate guiding annular edge is arranged on the sliding pulling plate, the sliding pull plate is arranged in the air resistance type torque resisting device in a sliding mode through the clamping and the sliding of the pull plate guide annular edge, the pull plate guide annular edge plays a guiding role, a pull plate notch is formed in the sliding pull plate and plays a role in avoiding positions, an annular pull plate center countersunk head groove is formed in the sliding pull plate, a weak magnetic partition plate is arranged in the annular pull plate center countersunk head groove of the sliding pull plate, flexible pull ropes are uniformly distributed on the umbrella-shaped winch fixing round platform in an annular mode, the umbrella-shaped winch fixing round platform is arranged on the sliding pull plate through the flexible pull ropes and can pull the sliding pull plate in a parallel mode through the umbrella-shaped winch fixing round platform, and the sliding pull plate is prevented from deflecting due to the fact that stress is uneven.
As a further preferred aspect of the present invention, the electromagnetic touch switch includes an induction type electromagnetic coil, a low resistance sliding magnetic ring, a reading scale and a magnetic ring guide bar, the electromagnetic touch switch is capable of triggering the induction type electromagnetic coil by mutual adsorption of the low resistance sliding magnetic ring and the weak magnetic partition plate after the motor stops rotating, and then the induction type electromagnetic coil sends out a pulse signal capable of powering off the motor, so as to prevent the motor from being damaged due to long-time overload, the induction type electromagnetic coil is provided with an execution coil, the induction type electromagnetic coil is clamped in a pull plate central annular countersunk groove by the execution coil, the induction type electromagnetic coil is provided with an induction coil, the middle position of the induction type electromagnetic coil of the induction coil is arranged on the air resistance type torque resisting device, and when the sliding pull plate slides, magnetic flux passing through the induction coil changes, can produce induced-current among the induction coil, on the slip arm-tie was located to the one end of magnetic ring guide bar, on the piston plate skeleton was located to the other end of magnetic ring guide bar, low resistance slip magnetic ring block slided and locates on the magnetic ring guide bar, there is magnetic adsorption power between low resistance slip magnetic ring and the weak magnetic separator, the reading scale is located on the slip arm-tie, the reading scale is arranged in the arm-tie breach, can read the slippage of wrapping up formula piston bag entirely through the reading scale to read resistance value.
Further, the air resistance type torque countermeasure device comprises an air resistance generating device and a protection device induction magnet, the air resistance generating device is arranged on the bottom guide device, the protection device induction magnet is arranged in the air resistance generating device, a parallel magnetic field exists between the protection device induction magnets, a coil moving in the magnetic field generates induction current if the magnetic flux changes.
Preferably, the gas resistance generating device comprises a gas resistance cylinder base, a cylindrical gas resistance cylinder and an end sealing cover, the gas resistance cylinder base is symmetrically arranged on the bottom guiding device, the gas resistance cylinder base is provided with a base arc bayonet, the cylindrical gas resistance cylinder is clamped in the base arc bayonet, the cylindrical gas resistance cylinder and the gas resistance cylinder base are fixedly connected, the fully-wrapped piston bag is clamped and slidably arranged in the cylindrical gas resistance cylinder, the fully-wrapped piston bag is in sliding sealing contact with the inner wall of the cylindrical gas resistance cylinder, the sliding pull plate is clamped and slidably arranged in the cylindrical gas resistance cylinder through a pull plate guide annular edge, the middle position of the induction coil is fixedly connected to the end part of the cylindrical gas resistance cylinder, the cylindrical gas resistance cylinder is provided with a cylindrical long-strip-shaped gap, and the induction coil is positioned in the cylindrical long-strip-shaped gap, the cylindrical gas resistance cylinder is symmetrically provided with cylinder scale areas at two sides of the cylindrical long-strip-shaped gap, the end sealing cover is clamped at one end of the cylindrical gas resistance cylinder and has a sealing effect, and the induction magnets of the protection device are symmetrically arranged on the inner wall of the cylindrical gas resistance cylinder.
Furthermore, the winding type driving device comprises a winding device and a driving device, the winding device is arranged on the bottom guiding device, and the driving device is arranged on the bottom guiding device; the winding device comprises a winding drum support, a drum spindle, a winding drum body and a flexible steel wire rope, the winding drum support is symmetrically arranged on the bottom guide device, the drum spindle is rotatably arranged in the winding drum support, a spindle connecting groove is formed in one end of the drum spindle, a drum center round table is arranged on the winding drum body, the winding drum body is arranged on the drum spindle through the drum center round table in a clamped mode, drum flanges are symmetrically arranged on the winding drum body, the flexible steel wire rope is wound on the winding drum body, and one end of the flexible steel wire rope is arranged on an umbrella-shaped winding fixing round table.
Preferably, the driving device comprises a motor to be tested and a motor fixing base, the motor fixing base is arranged on the bottom guiding device, the motor to be tested is arranged on the motor fixing base, a testing motor spindle is arranged on the motor to be tested, and the testing motor spindle is clamped in a spindle connecting groove.
Further, the bottom guiding device comprises a square main bottom plate, an air resistance device base, a testing device base and a bottom supporting wheel assembly, the winch roller support is symmetrically arranged on the square main bottom plate, the air resistance device base is arranged on the square main bottom plate, the air resistance cylinder base is symmetrically arranged on the air resistance device base, the testing device base is arranged on the square main bottom plate, the motor fixing base is arranged on the testing device base, and the bottom supporting wheel assembly is arranged on the air resistance device base.
As a further preferred aspect of the present invention, the bottom support wheel assembly includes a support wheel fork, a support wheel shaft, and a driven support roller, the bottom guide support wheel fork is mounted on the air resistor base, the support wheel shaft is engaged with the support wheel fork, the driven support roller is rotatably mounted on the support wheel shaft, and the driven support roller is in rolling contact with the flexible steel wire rope.
The use method of the air resistance type water pump driving motor torque testing device is characterized by comprising the following steps:
the method comprises the following steps: starting a motor to be tested, driving a balance piston plate assembly to slide in a mode of rolling a flexible steel wire rope by a winding drum body, and increasing the output torque of the motor to be tested along with the reduction of the air pressure in a cylindrical air resistance cylinder in the sliding process;
step two: in the sliding process of the balance piston plate assembly, as one section of the induction coil is fixed on the cylindrical gas resistance cylinder, the magnetic flux in a closed graph surrounded by the induction coil can be changed, and induced current can be generated in the induction coil;
step three: because the induction coil is connected with the execution coil in series, when current is generated in the execution coil, a magnetic field mutually exclusive with the low-resistance sliding magnetic ring is generated around the execution coil, so that the low-resistance sliding magnetic ring overcomes the attraction with the weak magnetic partition plate and slides away from the weak magnetic partition plate;
step two: when the motor to be tested reaches the peak torque and the sliding pulling plate cannot be pulled any more, the induced current in the induction coil disappears, the low-resistance sliding magnetic ring and the weak magnetic partition plate are adsorbed together again, the induction type electromagnetic coil is triggered to send out a pulse signal, and the power supply to the motor to be tested is stopped;
step three: after the test motor that awaits measuring cuts off the power supply, the balanced piston board subassembly can contract back to cylindrical gas resistance section of thick bamboo under the effect of external atmospheric pressure, takes the test motor main shaft reversal simultaneously, and the coil in the test motor that awaits measuring this moment can produce induced electromotive force, hinders the slip of slip arm-tie, prevents that full parcel formula piston bag from sliding fast to extreme position and causing the impact to the tip closing cap.
The invention with the structure has the following beneficial effects: the invention provides a torque testing device of a driving motor of an air resistance type water pump and a using method thereof, aiming at the contradictory characteristics that when the torque value of the motor is tested, the load or the resistance is not suitable to be too large (the small motor is difficult to drive) or too small (the large motor can be easily driven).
The invention discloses an electromagnetic resistance type overload protection device based on the principle of pre-reaction, wherein an electromagnetic resistance type overload protection device is creatively provided, magnetic flux in an induction coil is changed through a torsion value increasing process (namely a pulling plate sliding process), so that induced current capable of pushing a low-resistance sliding magnetic ring away is generated in an execution coil, the low-resistance sliding magnetic ring and a weak magnetic partition plate can be adsorbed together through magnetic attraction after a sliding pulling plate is static, and the technical effect of automatically triggering a power-off switch when the motor reaches peak torque is realized only by virtue of a smart structure under the condition of no force sensor.
Moreover, after the outage, the motor reverses under the effect of tensile force, and the inside induced-current that can produce the prevention motor rotation of motor prevents that the piston from kick-backing fast and causing the damage to motor or testing arrangement.
Drawings
FIG. 1 is a perspective view of a torque testing device for a driving motor of an air-resistance water pump according to the present invention;
FIG. 2 is a front view of a torque testing device for a driving motor of an air-resistance water pump according to the present invention;
FIG. 3 is a cross-sectional view taken along section line A-A of FIG. 2;
FIG. 4 is a cross-sectional view taken along section line B-B of FIG. 2;
FIG. 5 is a schematic structural diagram of an electromagnetic resistance type overload protection device of a torque testing device of a pneumatic water pump driving motor according to the present invention;
FIG. 6 is a schematic structural diagram of an air-resistance type torque countermeasure device of the air-resistance type water pump driving motor torque test device of the present invention;
FIG. 7 is a schematic structural diagram of a hoisting drive device of a torque testing device of a pneumatic water pump drive motor according to the present invention;
FIG. 8 is a schematic structural diagram of a bottom guide device of a torque testing device for a driving motor of an air-resistance water pump according to the present invention;
FIG. 9 is an enlarged view of a portion of FIG. 2 at I;
FIG. 10 is an enlarged view of a portion of FIG. 4 at II;
fig. 11 is a schematic block diagram of a torque testing device for a driving motor of an air-resistance water pump according to the present invention.
Wherein, 1, an electromagnetic resistance type overload protection device, 2, an air resistance type torque countermeasure device, 3, a winding type driving device, 4, a bottom guiding device, 5, a balance piston plate component, 6, an electromagnetic touch switch, 7, a full wrapping type piston bag, 8, a piston plate framework, 9, a piston pulling plate connecting upright post, 10, a sliding pulling plate, 11, an umbrella-shaped winding fixing circular table, 12, an induction type electromagnetic coil, 13, a low resistance sliding magnetic ring, 14, a reading scale, 15, a piston bag avoiding hole, 16, a piston bag center hole, 17, a pulling plate guiding annular edge, 18, a pulling plate notch, 19, a pulling plate center annular countersunk head groove, 20, a weak magnetic baffle, 21, a flexible pull rope, 22, an induction coil, 23, an execution coil, 24, an air resistance generating device, 25, a protection device induction magnet, 26, an air resistance cylinder base, 27, a cylindrical air resistance cylinder, 28. end sealing cover 29, base arc bayonet 30, cylindrical long-strip-shaped notch 31, cylindrical scale area 32, winding device 33, driving device 34, winding roller bracket 35, roller spindle 36, winding roller body 37, flexible steel wire rope 38, motor to be tested 39, motor fixing base 40, spindle connecting groove 41, roller flanging 42, roller central circular table 43, testing motor spindle 44, square main bottom plate 45, air resistance device base 46, testing device base 47, bottom supporting wheel assembly 48, supporting wheel fork 49, supporting wheel shaft 50, driven supporting wheel 51 and magnetic ring guide rod.
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; 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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention.
As shown in figure 1, the air resistance type water pump driving motor torque testing device and the using method thereof comprise an electromagnetic resistance type overload protection device 1, an air resistance type torque resisting device 2, a winch type driving device 3 and a bottom guide device 4, wherein the electromagnetic resistance type overload protection device 1 is clamped and slidably arranged in the air resistance type torque resisting device 2, the electromagnetic resistance type overload protection device 1 has the function of preventing the motor from being overloaded for a long time, the air resistance type torque resisting device 2 is arranged on the bottom guide device 4, the air resistance type torque resisting device 2 can provide resistance corresponding to the output torque of the motor in real time, the winch type driving device 3 is arranged on the bottom guide device 4, and the bottom guide device 4 has a supporting function.
As shown in fig. 1, 2 and 8, the bottom guide device 4 includes a square main bottom plate 44, an air-resistor device base 45, a testing device base 46 and a bottom support wheel assembly 47, wherein the air-resistor device base 45 is disposed on the square main bottom plate 44, the testing device base 46 is disposed on the square main bottom plate 44, and the bottom support wheel assembly 47 is disposed on the air-resistor device base 45; the bottom supporting wheel assembly 47 comprises a supporting wheel fork frame 48, a supporting wheel shaft 49 and a driven supporting roller 50, the supporting wheel fork frame 48 of the bottom guide device 4 is arranged on the air resistance device base 45, the supporting wheel shaft 49 is clamped in the supporting wheel fork frame 48, and the driven supporting roller 50 is rotatably arranged on the supporting wheel shaft 49.
As shown in fig. 1, 2, 4, 6 and 9, the air resistance type torque countermeasure device 2 includes an air resistance generating device 24 and a protection device induction magnet 25, the air resistance generating device 24 is provided on the bottom guide device 4, the protection device induction magnet 25 is provided in the air resistance generating device 24, parallel magnetic fields exist between the protection device induction magnets 25, a coil moving in the magnetic fields generates induction current if the magnetic flux changes; air-resistor generating device 24 includes air-resistor cylinder base 26, cylindrical gas resistance section of thick bamboo 27 and tip closing cap 28, air-resistor cylinder base 26 symmetry is located on air-resistor device base 45, be equipped with base arc bayonet 29 on the air-resistor cylinder base 26, cylindrical gas resistance section of thick bamboo 27 block is located in base arc bayonet 29, cylindrical gas resistance section of thick bamboo 27 and air-resistor cylinder base 26 rigid coupling, be equipped with the rectangular shape breach of drum 30 on the cylindrical gas resistance section of thick bamboo 27, cylindrical gas resistance section of thick bamboo 27 is equipped with drum scale district 31 at the bilateral symmetry of the rectangular shape breach of drum 30, the one end of cylindrical gas resistance section of thick bamboo 27 is located to tip closing cap 28 block, tip closing cap 28 has sealing effect, protection device response magnet 25 symmetry is located on the inner wall of cylindrical gas resistance section of thick bamboo 27.
As shown in fig. 1, 4, 5 and 10, the electromagnetic resistance type overload protection device 1 includes a balance piston plate assembly 5 and an electromagnetic touch switch 6, the balance piston plate assembly 5 is slidably engaged with the air resistance type torque countermeasure device 2, and the electromagnetic touch switch 6 is disposed on the balance piston plate assembly 5; the balance piston plate assembly 5 comprises a fully-wrapped piston bag 7, a piston plate framework 8, a piston pull plate connecting upright post 9, a sliding pull plate 10 and an umbrella-shaped winch fixing round platform 11, the fully-wrapped piston bag 7 can change the resistance when sliding, the fully-wrapped piston bag 7 is clamped and slidably arranged in a cylindrical gas resistance cylinder 27, the fully-wrapped piston bag 7 is in sliding and sealing contact with the inner wall of the cylindrical gas resistance cylinder 27, the fully-wrapped piston bag 7 has a sealing function, piston bag avoiding holes 15 are annularly and uniformly distributed in the fully-wrapped piston bag 7, a piston bag central hole 16 is arranged on the fully-wrapped piston bag 7, the piston pull plate framework 8 is clamped and arranged in the fully-wrapped piston bag 7, the piston pull plate connecting upright posts 9 are annularly and uniformly distributed on the piston plate framework 8, the piston pull plate connecting upright posts 9 are clamped and arranged in the piston bag avoiding holes 15, the sliding pull plate 10 is arranged on the piston pull plate connecting upright post 9, the sliding pulling plate 10 is provided with a pulling plate guiding annular edge 17, the sliding pulling plate 10 is clamped and slidably arranged in the cylindrical gas resistance cylinder 27 through the pulling plate guiding annular edge 17, the pulling plate guiding annular edge 17 plays a guiding role, the sliding pulling plate 10 is provided with a pulling plate notch 18, the pulling plate notch 18 plays a role in avoiding, the sliding pulling plate 10 is provided with a pulling plate central annular countersunk head groove 19, the sliding pulling plate 10 is provided with a weak magnetic partition plate 20 in the pulling plate central annular countersunk head groove 19, flexible pull ropes 21 are annularly and uniformly distributed on the umbrella-shaped winding fixing circular table 11, the umbrella-shaped winding fixing circular table 11 is arranged on the sliding pulling plate 10 through the flexible pull ropes 21, the sliding pulling plate 10 can be pulled in parallel through the umbrella-shaped winding fixing circular table 11, and the sliding pulling plate 10 is prevented from deflecting due to uneven stress; the electromagnetic touch switch 6 comprises an induction type electromagnetic coil 12, a low-resistance sliding magnetic ring 13, a reading scale 14 and a magnetic ring guide rod 51, the electromagnetic touch switch 6 can trigger the induction type electromagnetic coil 12 through the mutual adsorption of the low-resistance sliding magnetic ring 13 and a weak magnetic clapboard 20 after a motor stops rotating, then the induction type electromagnetic coil 12 sends out a pulse signal which can cut off the power of the motor to prevent the motor from being damaged due to long-time overload, an execution coil 23 is arranged on the induction type electromagnetic coil 12, the induction type electromagnetic coil 12 is clamped in a pull plate central annular countersunk groove 19 through the execution coil 23, an induction coil 22 is arranged on the induction type electromagnetic coil 12, the induction coil 22 is positioned in a cylindrical long strip-shaped gap 30, the middle position of the induction coil 22 is fixedly connected to the end part of a cylindrical gas resistance cylinder 27, and the magnetic flux passing through the induction coil 22 changes when the sliding pull plate 10 slides, induced current can be generated in the induction coil 22, one end of the magnetic ring guide rod 51 is arranged on the sliding pull plate 10, the other end of the magnetic ring guide rod 51 is arranged on the piston plate framework 8, the low-resistance sliding magnetic ring 13 is clamped and slidably arranged on the magnetic ring guide rod 51, magnetic adsorption force exists between the low-resistance sliding magnetic ring 13 and the weak magnetic partition plate 20, the reading scale 14 is arranged on the sliding pull plate 10, the reading scale 14 is positioned in the pull plate notch 18, the slippage of the full-wrapped piston bag 7 can be read through the reading scale 14, and therefore the resistance value is read.
As shown in fig. 1, 3 and 7, the hoisting driving device 3 includes a hoisting device 32 and a driving device 33, the hoisting device 32 is disposed on the bottom guide device 4, and the driving device 33 is disposed on the bottom guide device 4; the winding device 32 comprises a winding roller bracket 34, a roller spindle 35, a winding roller body 36 and a flexible steel wire rope 37, wherein the winding roller bracket 34 is symmetrically arranged on a square main bottom plate 44, the roller spindle 35 is rotatably arranged in the winding roller bracket 34, one end of the roller spindle 35 is provided with a spindle connecting groove 40, the winding roller body 36 is provided with a roller central circular truncated cone 42, the winding roller body 36 is clamped on the roller spindle 35 through the roller central circular truncated cone 42, the winding roller body 36 is symmetrically provided with roller flanges 41, the flexible steel wire rope 37 is wound on the winding roller body 36, one end of the flexible steel wire rope 37 is arranged on an umbrella-shaped winding fixed circular truncated cone 11, and a driven support roller 50 is in rolling contact with the flexible steel wire rope 37; the driving device 33 comprises a motor 38 to be tested and a motor fixing base 39, the motor fixing base 39 is arranged on a testing device base 46, the motor 38 to be tested is arranged on the motor fixing base 39, a testing motor spindle 43 is arranged on the motor 38 to be tested, and the testing motor spindle 43 is clamped in a spindle connecting groove 40; as shown in fig. 11, the working process of the device is that the motor 38 to be tested drives the winding drum body 36 to rotate, and the winding drum body 36 drives the balance piston plate assembly 5 to move, so that the induction coil 22 generates induction current, the low-resistance sliding magnetic ring 13 receives thrust in a magnetic field generated by the induction current, when the torque reaches a limit state, the induction current disappears, the low-resistance sliding magnetic ring 13 is adsorbed on the weak magnetic partition plate 20 again and feeds a pulse signal back to the motor, so that the motor stops rotating.
When the device is used specifically, a user firstly needs to start the motor 38 to be tested, the balance piston plate assembly 5 is driven to slide in a mode of rolling the flexible steel wire rope 37 by the winding drum body 36, and the output torque of the motor 38 to be tested is increased along with the reduction of the air pressure in the cylindrical air resistance cylinder 27 in the sliding process; during the sliding of the balance piston plate assembly 5, since a section of the induction coil 22 is fixed on the cylindrical gas resistance cylinder 27, the magnetic flux in the closed pattern enclosed by the induction coil 22 changes, so that an induced current is generated in the induction coil 22; because the induction coil 22 and the execution coil 23 are connected in series, when current is generated in the execution coil 23, a magnetic field which is mutually repelled with the low-resistance sliding magnetic ring 13 is generated around the execution coil 23, so that the low-resistance sliding magnetic ring 13 overcomes the attraction with the weak magnetic partition plate 20 and slides away from the weak magnetic partition plate 20; when the motor 38 to be tested reaches the peak torque and cannot pull the sliding pulling plate 10 any more, the induced current in the induction coil 22 disappears, the low-resistance sliding magnetic ring 13 and the weak magnetic partition plate 20 are adsorbed together again, the induction type electromagnetic coil 12 is triggered to send out a pulse signal, and the power supply to the motor 38 to be tested is stopped; after the motor 38 to be tested is powered off, the balance piston plate assembly 5 retracts into the cylindrical gas resistance cylinder 27 under the action of external air pressure, and meanwhile, the main shaft 43 of the test motor is driven to rotate reversely, at the moment, a coil in the motor 38 to be tested generates induced electromotive force to block the sliding of the sliding pull plate 10, the fully-wrapped piston bag 7 is prevented from rapidly sliding to the limit position to impact the end sealing cover 28, the whole working process is completed, and the steps are repeated when the fully-wrapped piston bag is used next time.
The actual operation process is very simple and easy, only the motor 38 to be tested needs to be started, the balance piston plate assembly 5 is driven to slide in a mode that the winch roller body 36 rolls the flexible steel wire rope 37, and the output torque of the motor 38 to be tested is increased along with the reduction of the air pressure in the cylindrical air resistance cylinder 27 in the sliding process; when the motor 38 to be tested can not pull the sliding pulling plate 10 any more until the peak torque is reached, the low-resistance sliding magnetic ring 13 and the weak magnetic partition plate 20 are adsorbed together, the induction type electromagnetic coil 12 is triggered to send out a pulse signal, and the power supply to the motor 38 to be tested is stopped; after the motor 38 to be tested is powered off, the balance piston plate assembly 5 retracts into the cylindrical gas resistance cylinder 27 under the action of external air pressure, and meanwhile, the main shaft 43 of the test motor is driven to rotate reversely, at the moment, a coil in the motor 38 to be tested generates induced electromotive force to block the sliding of the sliding pull plate 10, and the full-wrapping type piston bag 7 is prevented from rapidly sliding to the limit position to impact the end sealing cover 28.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a gas resistance type water pump drive motor moment of torsion testing arrangement which characterized in that: including electromagnetic resistance formula overload protection device (1), air-resistor formula moment of torsion confrontation device (2), hoist formula drive arrangement (3) and bottom guider (4), electromagnetic resistance formula overload protection device (1) block slides and locates in air-resistor formula moment of torsion confrontation device (2), air-resistor formula moment of torsion confrontation device (2) are located on bottom guider (4), hoist formula drive arrangement (3) are located on bottom guider (4).
2. The air resistance type water pump driving motor torque testing device according to claim 1, characterized in that: the electromagnetic resistance type overload protection device (1) comprises a balance piston plate assembly (5) and an electromagnetic touch switch (6), the balance piston plate assembly (5) is arranged in the air resistance type torque countermeasure device (2) in a clamping and sliding mode, and the electromagnetic touch switch (6) is arranged on the balance piston plate assembly (5).
3. The air resistance type water pump driving motor torque testing device according to claim 2, characterized in that: the balance piston plate component (5) comprises a fully-wrapped piston bag (7), a piston plate framework (8), a piston pulling plate connecting upright post (9), a sliding pulling plate (10) and an umbrella-shaped winch fixing round platform (11), the fully-wrapped piston bag (7) is clamped and slidably arranged in the air resistance type torque countermeasure device (2), piston bag avoiding holes (15) are annularly and uniformly distributed on the fully-wrapped piston bag (7), a piston bag center hole (16) is arranged on the fully-wrapped piston bag (7), the piston plate framework (8) is clamped and arranged in the fully-wrapped piston bag (7), the piston pulling plate connecting upright posts (9) are annularly and uniformly arranged on the piston plate framework (8), the piston pulling plate connecting upright post (9) is clamped and arranged in the piston bag avoiding hole (15), the sliding pulling plate (10) is arranged on the piston pulling plate connecting upright post (9), the air resistance type torque countermeasure device is characterized in that a pull plate guide annular edge (17) is arranged on the sliding pull plate (10), the sliding pull plate (10) is arranged in the air resistance type torque countermeasure device (2) in a sliding mode through the pull plate guide annular edge (17) in a clamping mode, a pull plate notch (18) is arranged on the sliding pull plate (10), a pull plate center annular countersunk head groove (19) is formed in the sliding pull plate (10), a weak magnetic partition plate (20) is arranged in the pull plate center annular countersunk head groove (19) of the sliding pull plate (10), flexible pull ropes (21) are annularly distributed on the umbrella-shaped winch fixing circular platform (11), and the umbrella-shaped winch fixing circular platform (11) is arranged on the sliding pull plate (10) through the flexible pull ropes (21).
4. The air resistance type water pump driving motor torque testing device according to claim 3, characterized in that: the electromagnetic touch switch (6) comprises an induction type electromagnetic coil (12), a low-resistance sliding magnetic ring (13), a reading scale (14) and a magnetic ring guide rod (51), wherein an execution coil (23) is arranged on the induction type electromagnetic coil (12), the induction type electromagnetic coil (12) is clamped in an annular countersunk head groove (19) in the center of a pulling plate through the execution coil (23), an induction coil (22) is arranged on the induction type electromagnetic coil (12), the middle position of the induction type electromagnetic coil (12) is arranged on an air resistance type torque countermeasure device (2), one end of the magnetic ring guide rod (51) is arranged on a sliding pulling plate (10), the other end of the magnetic ring guide rod (51) is arranged on a piston plate framework (8), the clamping of the magnetic ring (13) is arranged on the magnetic ring guide rod (51) in a sliding manner, and magnetic adsorption force exists between the low-resistance sliding magnetic ring guide rod (13) and a weak magnetic partition plate (20), the reading scale (14) is arranged on the sliding pull plate (10), and the reading scale (14) is positioned in the pull plate notch (18).
5. The air resistance type water pump driving motor torque testing device according to claim 4, characterized in that: the air resistance type torque countermeasure device (2) comprises an air resistance generating device (24) and a protection device induction magnet (25), wherein the air resistance generating device (24) is arranged on the bottom guide device (4), and the protection device induction magnet (25) is arranged in the air resistance generating device (24).
6. The air resistance type water pump driving motor torque testing device according to claim 5, characterized in that: the air resistance generating device (24) comprises an air resistance cylinder base (26), a cylindrical gas resistance cylinder (27) and an end sealing cover (28), the air resistance cylinder base (26) is symmetrically arranged on the bottom guide device (4), a base arc bayonet (29) is arranged on the air resistance cylinder base (26), the cylindrical gas resistance cylinder (27) is clamped in the base arc bayonet (29), the cylindrical gas resistance cylinder (27) and the air resistance cylinder base (26) are fixedly connected, a fully-packaged piston bag (7) is clamped and slidably arranged in the cylindrical gas resistance cylinder (27), the fully-packaged piston bag (7) and the cylindrical gas resistance cylinder (27) are in sliding sealing contact with each other through the inner wall of a pull plate guide annular edge (17) and slidably arranged in the cylindrical gas resistance cylinder (27), the intermediate position of the induction coil (22) is fixedly connected to the end of the cylindrical gas resistance cylinder (27), be equipped with drum rectangular shape breach (30) on cylindrical gas resistance section of thick bamboo (27), induction coil (22) are arranged in drum rectangular shape breach (30), cylindrical gas resistance section of thick bamboo (27) are equipped with drum scale zone (31) at the bilateral symmetry of drum rectangular shape breach (30), the one end of cylindrical gas resistance section of thick bamboo (27) is located in tip closing cap (28) block, protection device response magnet (25) symmetry is located on the inner wall of cylindrical gas resistance section of thick bamboo (27).
7. The air resistance type water pump driving motor torque testing device according to claim 6, characterized in that: the winch type driving device (3) comprises a winch device (32) and a driving device (33), the winch device (32) is arranged on the bottom guide device (4), and the driving device (33) is arranged on the bottom guide device (4); the winding device (32) comprises a winding roller bracket (34), a roller main shaft (35), a winding roller body (36) and a flexible steel wire rope (37), the winding roller bracket (34) is symmetrically arranged on the bottom guide device (4), the roller main shaft (35) is rotatably arranged in the winding roller bracket (34), one end of the roller main shaft (35) is provided with a main shaft connecting groove (40), the winch roller body (36) is provided with a roller central circular table (42), the winding roller body (36) is clamped on the roller main shaft (35) through a roller central circular table (42), the winding roller body (36) is symmetrically provided with roller flanges (41), the flexible steel wire rope (37) is wound on the winding roller body (36), one end of the flexible steel wire rope (37) is arranged on the umbrella-shaped winding fixing round platform (11).
8. The air resistance type water pump driving motor torque testing device according to claim 7, characterized in that: drive arrangement (33) are including awaiting measuring motor (38) and motor unable adjustment base (39) to await measuring, motor unable adjustment base (39) are located on bottom guider (4), motor (38) that awaits measuring are located on motor unable adjustment base (39), be equipped with test motor main shaft (43) on awaiting measuring motor (38), test motor main shaft (43) block is located in main shaft connecting groove (40).
9. The air resistance type water pump driving motor torque testing device according to claim 8, characterized in that: the bottom guiding device (4) comprises a square main bottom plate (44), an air resistance device base (45), a testing device base (46) and a bottom supporting wheel assembly (47), the winch roller support (34) is symmetrically arranged on the square main bottom plate (44), the air resistance device base (45) is arranged on the square main bottom plate (44), the air resistance cylinder base (26) is symmetrically arranged on the air resistance device base (45), the testing device base (46) is arranged on the square main bottom plate (44), a motor fixing base (39) is arranged on the testing device base (46), the bottom supporting wheel assembly (47) is arranged on the air resistance device base (45), and the flexible steel wire rope (37) and the bottom supporting wheel assembly (47) are in rolling contact.
10. The use method of the torque testing device for the air resistance type water pump driving motor according to claim 9 is characterized by comprising the following steps of:
the method comprises the following steps: starting a motor (38) to be tested, driving the balance piston plate assembly (5) to slide in a mode of rolling the flexible steel wire rope (37) by the winding drum body (36), and synchronously increasing the output torque of the motor (38) to be tested along with the reduction of the air pressure in the cylindrical air resistance cylinder (27) in the sliding process;
step two: when the motor (38) to be tested reaches the peak torque and the sliding pulling plate (10) can not be pulled any more, the low-resistance sliding magnetic ring (13) and the weak magnetic partition plate (20) are adsorbed together, the induction type electromagnetic coil (12) is triggered to send out a pulse signal, and the power supply to the motor (38) to be tested is stopped;
step three: after the power of the motor (38) to be tested is cut off, the balance piston plate assembly (5) retracts into the cylindrical gas resistance cylinder (27) under the action of external air pressure, and meanwhile, the main shaft (43) of the test motor is driven to rotate reversely, so that a coil in the motor (38) to be tested can generate induced electromotive force to block the sliding of the sliding pull plate (10), and the full-wrapping type piston bag (7) is prevented from rapidly sliding to a limit position to impact the end sealing cover (28).
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