KR101228346B1

KR101228346B1 - the torque generation apparatus with rare earth element permanent magnets

Info

Publication number: KR101228346B1
Application number: KR1020100085625A
Authority: KR
Inventors: 정순배; 김현우
Original assignee: (주)스마텍
Priority date: 2010-09-01
Filing date: 2010-09-01
Publication date: 2013-02-21
Also published as: KR20120022244A

Abstract

The present invention relates to a system relating to the simulation of torque acting on a rotating body. More specifically, a torque generating device or system for simulating torsional moments or torques for power transmission devices such as shipbuilding, pumps, motors, passenger cars, private cars, railroad cars, and tracked vehicles. And a method of measuring and adjusting torque using the same.
The present invention is the main power motor unit for transmitting power to the shaft of the wheel (wheel) of the vehicle traveling or using the track, the torque generator mounted on the rotating shaft, the slip ring mounted on the rotating shaft, torque meter, torque beam Including a government, a power supply unit and optionally a central control unit,
The torque generator includes a rotating body, a rare earth permanent magnet, and an electromagnet wound with a coil. The power is supplied from the power supply unit through the information received from the torque compensator through the slip ring to maintain a constant torque according to the steering stage. The main configuration provides a torque generating device for the track vehicle according to the steering stage.

Description

The torque generation apparatus with rare earth element permanent magnets}

The present invention relates to an apparatus for generating torque acting on a rotating body.

More specifically, the apparatus or system for simulating the torsional moment (torque) for power transmission devices such as shipbuilding, pumps, motors, passenger cars, private cars, railroad cars, tracked vehicles, and the like It provides a method of generating and adjusting torque.

In general, the torque transmitting device of the power transmission device generates torque. In particular, in the case of a tracked vehicle, a lot of torque changes due to steering, and the linear driving and the curved operation of the tracked vehicle according to the degree of change of the torque. Predict the stability and limits of the city.

In addition, due to the large number of physical changes in the track, power transmission device, and the rotating shaft during the steering of the tracked vehicle, it is necessary to measure the durability, stability, and fatigue of the tracked vehicle. And it is required a lot of necessity to find a countermeasure by simulating the problems that occur according to the changing torque.

Accordingly, the present invention provides a torque generating device or system of various aspects, particularly for generating a torque that changes during steering of a tracked vehicle or maintaining a constant torque to test its physical and mechanical properties, that is, a change in overall torque. And to provide an implementation method accordingly.

Torque measurement is a necessary technique for measuring the power or efficiency of rotary power units or operating the rotary power units without overload in almost all fields such as the automobile industry, shipbuilding, pumps and motors.

In particular, torque generating technology, i.e., dynamic torque generating technology, in a rotating state requires a considerable level of technology.

Conventional contact torque generation technology conceptually drives a measurement object with a drive motor and then rotates the measurement object at a constant speed. Then, when the load torque of the drive motor is fixed at one point, the torsion bar is twisted. At this time, the torsional displacement corresponding to the load torque is read as the strain gauge voltage signal to control the torque characteristic of the measuring object. The technology for generating the changed torque and controlling the torque is a situation that has been developed in recent years.

In addition to this, in recent years, there are many cases in which a device for controlling torque is developed in combination with the above-described torque measurement and generation technology, among which patent engine 10-0695855 has been proposed.

This prior invention seeks to provide an engine torque control device which increases the engine output torque during downshifting of an automatic transmission as an engine control device so that the engine speed matches the target speed. That is, an engine torque control device including an automatic transmission control section and an engine output torque control section is provided.

It is appreciated that the above prior art provides a useful technique by providing a device for controlling torque of a drive shaft of a vehicle or the like and an engine output according to a change in torque.

However, the above technique is applied to general vehicles, and it is difficult to apply torque changes to various track vehicles.

Accordingly, an aspect of the present invention is to provide a device for generating torque of a track vehicle having various torque changes, particularly in the case of a track vehicle, in which a rotating shaft that transmits power to a track, which is a power transmission system, has a torque in comparison with a general vehicle. The present study aims to provide a solution to the fact that the physical and mechanical properties, such as, are more complex, and the importance of testing the physical and mechanical properties transmitted to the track vehicle's torque changes and track wheels.

In addition, there is an urgent need to develop a system for maintaining a constant torque against a change in torque generated when the track vehicle is steered, in particular, in the torque test of the track vehicle.

In addition, there is a need for a torque generation system for track vehicles incorporating a system that can simply and easily correct the changed torque.

The present invention to solve the above problems and technical requirements,

Main power motor unit that transmits power to the axis of the wheel of the vehicle that runs the track or uses the caterpillar, torque generator mounted on the rotating shaft, slip ring mounted on the rotating shaft, torque meter, torque compensation, power supply Including a providing unit and optionally a central control unit,

The torque generator includes a rotating body, a rare earth permanent magnet, and an electromagnet wound with a coil. The power is supplied from the power supply unit through the information received from the torque compensator through the slip ring to maintain a constant torque according to the steering stage. The main configuration provides a torque generating device for the track vehicle according to the steering stage.

The torque generating device according to the present invention has the effect of being able to quickly detect the change in torque according to the steering of the tracked vehicle, and also to perform the experiment efficiently by simply and easily compensating for the reduced torque.

In addition, the present invention has the advantage that it is possible to maintain a stable torque by using a torque generator that can generate a strong torque instantaneously using a permanent magnet of the rare earth system and an electromagnetic coil wound coil.

In addition, the torque generator of the present invention has a number of technical characteristics about the number and arrangement of permanent magnets of rare earth systems and the number and arrangement of electromagnets wound around coils, which are different from those of generating a conventional torque. Has the effect of generating.

In addition, the present invention is equipped with a torque generator on the rotating shaft to directly generate and transmit the insufficient torque, the conventional simulation apparatus has a big difference from that of compensating torque by changing the power of the main power motor. By this action of the present invention, it is possible to generate a quick and accurate torque to maintain the constant torque.

In addition, in the conventional torque simulation system, it is possible to provide a system for constantly maintaining the changed torque according to the external environment and the force due to poor control, etc., which has an advantageous effect of performing stable experiments.

1 is a conceptual example of the arrangement of a rare earth permanent magnet and a coil wound electromagnet of the torque generator of the present invention.
2 is an example of the arrangement of a rare earth permanent magnet and a coil wound electromagnet of the torque generator of the present invention.
3 is a conceptual diagram of a torque simulation system of the present invention.

Hereinafter, the present invention will be described in detail.

The present invention provides a torque generating device or system for a torque test for power transmission for a vehicle or the like that rotates by a power source such as a motor, an engine, or the like.

The present invention particularly provides a simulation system for torque measurement of power transmission of tracked vehicles, such as heavy equipment vehicles, armored vehicles, trams, railways and the like. In another aspect, the present invention provides a simulation system for the change of the torque by using a device for maintaining a constant torque on the rotating shaft of the vehicle as described above.

The present invention measures the change of the torque according to the steering (orientation, steering) of the axis of rotational movement that transmits the rotational movement to the wheel of the vehicle using the railroad or the caterpillar or to compensate the value of the changed torque to keep the torque constant By providing a system that can measure the physical and mechanical properties accordingly.

It also provides a method of measuring and adjusting varying torques based on the simulation and measurement system described above.

The present invention is the main power motor unit for transmitting power to the axis of the wheel (wheel) of the vehicle traveling or using the track, a torque generator for generating torque by using a rare earth permanent magnet, torque of a rotating object Torque meter for measuring the torque, Torque correction unit for calculating the difference between the generated torque measured by the torque meter and the set torque based on the reference, Power supply for providing the required current amount calculated in the torque correction unit, The study consists of a slip ring that delivers power and a configuration that delivers power to the torque generator through the slip ring.

The invention also comprises a central control section including a display section for displaying the measured or changed torque and the corrected torque in the above configuration.

In addition, the present invention may be additionally configured with a motor control unit (MCU) unit for controlling the torque when a change in torque occurs in the main power motor unit.

The biggest technical feature of the present invention is that the torque generator (torque generator) is mounted on the rotation axis of the wheel power transmission. The torque generator means a device that generates torque, and means a device that generates rotational force.

The torque generator of the present invention means a device or means for maintaining the original required torque by compensating or supplementing the increased or decreased torque on the rotating shaft by using the rare earth permanent magnet 100 and the coil wound electromagnet 200. .

In the present invention, the torque generator may use a permanent magnet, but preferably a rare earth permanent magnet.

Rare earth permanent magnet is a generic name of rare earth permanent magnet which is a generic name of 17 elements combined with scandium yttrium of Group 3 of the periodic table and 15 elements of lanthanum series of atomic number 57 to 71. Rare earth elements are usually silver white or gray metal. It means a variety of magnets made of silver and has a coercive force of 10 times that of ordinary magnets.

In the torque generator of the present invention, a rare earth permanent magnet and an electromagnet wound with a coil are arranged on a rotating body of the torque generator.

As shown in FIG. 1, the technical characteristics of the torque generator are a series of electromagnets in which several rare earth permanent magnets and several coils are wound in a circle, which can be virtually drawn on a circular or disc-shaped rotating body mounted on a rotating shaft. It is formed.

In addition, as shown in FIG. 2, the rare earth permanent magnet and the electromagnet wound with a plurality of coils may be positioned in a shape in which a rotational force may be generated toward a center point by dividing the circular or disc-shaped rotating body equally.

In particular, the present invention has a technical feature in the arrangement of the rare earth permanent magnet, which is disposed while crossing the compartments by dividing the rotational body of the torque generator in equal angles while looking at the same pole.

In this case, the number of rare earth permanent magnets is composed of several, but preferably characterized by consisting of even numbers. This is because the same poles can be formed to face each other only if they are even. More preferably, the number of permanent magnets is preferably between 2 and 32, preferably in multiples of 4.

Similarly, the electromagnet wound the coil in the form as shown in FIG. 1 is also arranged by dividing the rotating body into equal parts, but the direction of the coil so that the same pole can face when the electromagnet wound the coil through which the current flows. Should be set.

Therefore, when supplying current from the torque generator in the power supply unit to be converted to direct current and provided to the torque generator, the same poles of the electromagnets should face each other.

At this time, the electromagnet wound the coils opposed to each other with respect to the center point of the rotating body flows current in the same direction. In addition, the electric current of the electromagnet wound around the coil located next to the virtual line of the rotor flows in different directions.

In this case, the number of electromagnets wound around the coil is preferably made even. More preferably, it is equal to the number of permanent magnets of rare earths.

And the coiled electromagnet should be alternated with the rare earth permanent magnet.

The present invention supplies external power to the torque generator in the power supply. The means for supplying the external power from the power supply unit should be transmitted through a coil wound around the electromagnet of the torque generator, so that a contact or non-contact means capable of supplying power to the rotating coil may be employed.

In the present invention, it is preferable to use a slip ring for supplying current to the rotor windings such as an electric motor and a generator.

Therefore, the coil is connected to the slip ring connecting part 300 toward the center of the torque generator, and a current for obtaining the required torque is applied to the coil through the slip ring 310. In this way, an electromagnetic force is generated when a current is applied to the coil of the electromagnet, and a rotating force or torque is generated by interacting with the rare earth permanent magnet.

In addition, the direction of the direct current transmitted from the slip ring to the torque generator can be freely changed according to the direction of the torque generated in the torque generator.

Such a change of direction is a matter that can be easily implemented by a converter such as an inverter (or a converter) that converts an alternating current into a direct current.

Accordingly, the torque generator can facilitate the action of increasing the torque reduced by steering or the like or reducing the torque increased more than necessary by the downward motion or the like.

The rotating force causes torque to be generated, and when the track vehicle changes torque due to linear motion, curved motion, uneven motion, vertical motion, and the like, it transmits a force that makes this torque constant.

That is, a strong output torque (rotational power) is generated through the arrangement of the rare earth permanent magnet and the electromagnetic coil wound as described above, and the torque is generated by calculating the torque to be adjusted according to the decrease or change of the torque generated during steering. It can be kept constant.

The number of permanent magnets of the rare earth, the number of coils wound, and the number of coiled electromagnets of the present invention are matters that can be determined according to a user's request by predicting a range of expected torque generation and a range of variation.

The present invention may be additionally equipped with an encoder (encoder) that can measure the speed of the rotating shaft of the power transmitted to the wheel. The encoder transmits the speed signal to the central controller to be performed so that the experimenter can recognize, analyze and evaluate the speed of the rotating shaft.

In general, an incremental encoder is widely used as a sensor for detecting a speed. In some cases, an absolute encoder or a resolver is used, and the present invention can be applied to the torque generator of the present invention. have.

Torque meta of the present invention also referred to as a torque sensor and means an instrument or device for measuring the torque of the rotating body.

Torque meter, a device for measuring torque of a rotating shaft, is generally classified into a rotating type and a non-rotating type, and the rotating torque sensor measures rotational displacement of two axes using a strain gauge and a potentiometer. Contact torque sensor, and a non-contact torque sensor for measuring the rotational displacement of the two axes by a magnetic method or an optical method.

On the other hand, the non-contact torque sensor using the optical method has two perforated disks or one disk and induces the amount of light or pattern to change when the light emitted from the emitter passes through the disk and measures the torque with this difference. In addition, the rotation angle can be measured with the number of optical pulses.

In the present invention, any of the above-described torque meters may be used, such as the rotary type, non-rotary type, contact type, or non-contact type. However, it is preferable to use a non-contact torque meter.

The torque correction unit of the present invention compares, analyzes, and interprets the torque measured by the torque meter and the torque set as a reference to calculate power for insufficient or excessive torque and to support power for operating the torque generator accordingly. Means means.

In addition, the torque compensator can be interlocked with the motor control unit (MCU) of the main power motor unit to be described below. When the torque is excessively generated, information is transmitted to the MCU to reduce the torque change such as reducing the power of the main power motor unit. It also means to make.

Therefore, the torque compensator may be configured as part of the control circuit of the MCU, if necessary, but the main function of the torque compensator is a control circuit for signal transmission to support power for generating torque to the torque generator, so as a separate system. It is desirable to operate.

In this way, the torque correction unit transmits the information on the required torque to the power supply unit, and thus the power supply unit provides the required power amount to the torque generator through the slip ring.

Then, electromagnetic force is generated in the electromagnet wound around the coil of the torque generator and the rare earth permanent magnet to generate strong torque.

The generated torque can maintain a constant torque desired by the experimenter. In other words, the torque changes when the experimenter changes the steering stage (in which the experimenter sets the size of the steering angle as necessary), as in the case of curve movement even in a constant amount of power provided by the main power motor unit. (Typically torque is reduced).

The changed (reduced) torque is detected by the torque meter, and the detected torque is recognized, interpreted, and commanded by the torque compensator, and the torque compensator transmits a signal to the power supply and thus provides power from the power supply. The received torque generator generates a strong torque to maintain a constant torque desired by the experimenter.

In addition, when the torque increases due to the downward motion of the test subject, the torque correction unit transmits a correction signal to the torque generator, and the torque generator generates torque in the reverse direction to reduce the torque.

Recognition, analysis, and command mechanism of the changed torque of the torque correction unit are as follows. If the torque decreases due to steering to the reference torque, it automatically signals the power supply to supply power and accordingly generates torque until the torque generator reaches the reference torque and the torque reaches the reference torque. This is a mechanism that utilizes feedback (feedback) that does not operate the torque generator.

This feedback mechanism shows the effect that the experimenter can maintain the desired torque quickly and accurately.

If the torque is increased rapidly due to an external environment, for example, when the torque increases, such as in the case of an uneven movement or a downward movement, the torque correction unit sends the increased signal to the MCU. By controlling the main power motor portion, it is also possible to act when the torque is kept constant.

The power supply unit means a device for supplying power required for the torque generator, and means a device or means for recognizing a control signal provided by the torque compensator and providing a corresponding power to the torque generator through a slip ring. .

The current of the power supply unit can be used for both alternating current or direct current, and can be transferred by converting it from a slip ring to a direct current form as described above.

The present invention relates to a simulation system for experimenting with physical and mechanical characteristics according to torque changes of a tracked vehicle, and may include a central control unit including a display unit for displaying the overall situation of torque.

The central control unit constantly displays the torque generated by the torque meter, and allows the user to set the torque of the tracked vehicle to be measured to a constant value, and displays the amount of power provided to the torque generator and its change. Means the concept means including the function of displaying the amount of power and the change of the power motor unit. Of course, the central control unit includes a function of displaying a change of torque according to displaying a step of steering.

Such a central controller can be realized by driving the hardware and software of the computer.

Through the above configuration, it is possible to measure the torque according to the steering of the vehicle, in particular the track vehicle, and provide a simulation system that can stably measure the physical and mechanical characteristics of the track wheel through the function of maintaining a constant torque even during steering. Done.

In addition, the present invention is to provide a simulation method of the torque to measure the characteristics of the torque transmitted to the wheel of the track vehicle using the above technical configuration as follows.

The present invention performs a process for positioning the track vehicle, which is the test vehicle, on the test bench and providing power to the track vehicle through the main power motor unit so that the experimenter can generate the desired torque.

When power is applied to the test subject in the above process, torque is measured through a torque meter.

In addition, the experimenter performs a process of changing a steering stage, which is a process of changing a steering angle by using a steering system of a test subject. At this time, the change in torque that is changed according to each steering step is measured through the torque meter.

At this time, the experimenter performs a process of supplying power to the torque generator through a command to keep the torque constant or to arbitrarily change the torque.

If a predetermined torque value is input to the torque compensator, even if the experimenter changes the steering stage, the torque generator continues to maintain the original torque and if the torque change command is made, the torque generator The process of generating torque is performed.

As mentioned above, the torque generator is composed of a rare earth permanent magnet and an electromagnet wound with a coil, and adopts a method of applying power through a slip ring.

If the torque generation amount increases by changing the horizontal angle of the tracked vehicle without changing the steering stage or by changing the horizontal angle by changing the steering stage, the power is controlled by controlling the power of the main power motor unit through the motor control unit (MCU). Follow the process to keep it constant.

Providing a simulation method that can measure the physical and mechanical characteristics acting on the change of the torque, the track of the track vehicle, the rotating shaft, etc. according to the steering of the track vehicle through the method of maintaining a constant torque even if the steering stage is changed as described above. Done.

The present invention is a technology that is actively applied to the industrial field to simulate the torque of a general vehicle including a tracked vehicle.

In addition, the present invention is highly applicable to the field that needs to maintain a constant torque when a change in torque due to external force in the power transmission system.

The present invention is a technology that is highly applicable to the industry for researching and manufacturing general vehicles, railways, trams, armored vehicles, heavy equipment and the like.

100: rare earth permanent magnet 200: coil wound electromagnet
300: slip ring connection 310: slip ring

Claims

Main power motor unit that transmits power to the axis of the wheel of the vehicle that runs the track or uses the caterpillar, torque generator mounted on the rotating shaft, slip ring mounted on the rotating shaft, torque meter, torque compensation, power supply Including a providing unit and optionally a central control unit,
The torque generator divides the imaginary circle of the rotating body into equal angles and is positioned across one compartment, and the number of even-numbered rare earth permanent magnets is positioned so that the same poles of the rare earth permanent magnets face each other.
When an electric current flows in an even number of coils wound evenly, the imaginary circle of the rotating body is equally divided so that the powered electromagnets face each other with the same poles as the powered electromagnets.
A rare earth-based permanent magnet and an electromagnetic coil wound around the coil are alternately positioned on the rotor of the torque generator.

The method of claim 1,
The torque generator includes a rotating body, a rare earth permanent magnet, and an electromagnet wound with a coil. The power is supplied from the power supply unit through the information received from the torque compensator through the slip ring to maintain a constant torque according to the steering stage. Torque generator torque generating device characterized in that the giving.

The method of claim 2,
When the torque increases due to the change in the steering stage and / or the horizontal angle of the tracked vehicle, the torque compensator transmits information to the motor control unit (MCU) to control the power of the main power motor unit to maintain the constant torque. Torque generating device for a tracked vehicle.

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