KR20100102350A - Mechanical feed back type planetary gear box tester - Google Patents

Abstract

PURPOSE: A mechanical feedback type planetary gear box tester is provided to save power by using the power occurred by a drive motor using a circulation system. CONSTITUTION: A mechanical feedback type planetary gear box tester comprises a drive motor(10), a first shaft(20), a planetary gear box(30), a second shaft(40), a dummy gear box(50), a load gear box(60), and a torsion shaft(70). One end of the first shaft is coupled to the drive motor. One end of the planetary gear box is connected to the first shaft and receives torque. The second shaft is connected to the other end of the planetary gear box and is rotated. The dummy and load gear boxes are connected to the first and second shafts to receive the torque. The torsion shaft connects the other end of the dummy gear box and the other and of the load gear box.

Description

Mechanical feed-back planetary gear box test equipment {Mechanical feed back type planetary gear box tester}

The present invention relates to a mechanical power cycle type planetary gearbox test equipment for efficiently testing the durability of a planetary gearbox, which is a device for reversing and shifting.

In general, when the speed reduction is required in a mechanical device, there are a reduction device using a pinion gear, a reduction device using a worm gear, and a reduction device using a planetary gear. In the reduction gear combined with the above-described pinion gear, a large number of parts are required and a large appearance is required to obtain a large reduction ratio, which requires a large installation space and increases manufacturing costs.

In addition, the reduction gear using the worm gear has the advantage of obtaining a large reduction ratio despite the small size, but there is a problem that the central axis does not coincide with the output shaft and does not reverse from the output stage to the input stage and the friction loss is large.

In addition, although the most simple structure is used, the harmonic drive reduction device that can obtain a large reduction ratio is used, but the manufacturing cost is expensive, there is a problem in transmitting a large force, there is a problem that there is a lot of noise. Therefore, a reduction gear to obtain a large reduction ratio mainly uses a reduction gear using planetary gears. The reduction gear using the planetary gear includes a simple planetary gear reduction device consisting of one simple planetary gear set and a composite planetary gear reduction device consisting of two or more simple planetary gear sets.

Looking at the equipment for testing the efficiency of such a planetary gear set, Figure 1 is a view showing a conventional planetary gear box test equipment, as shown in the drawing, in order to test a large-scale planetary gear box drive unit (A) and A large amount of hydraulic pressure must be supplied to the load part B, and a large amount of heat exchanger (cooling device) is required because all loads applied to the test equipment during the test are generated as heat.

Therefore, there is a problem in that a large amount of hydraulic supply device and a large heat exchanger, as well as the problem that a lot of power is consumed by this, as well as the installation space is required because the test equipment is larger due to the additional devices. .

The present invention has been made to solve the above problems, and more specifically, the power is circulated by connecting the power generated from the drive motor to a plurality of shafts and the gearbox and the torsion shaft to form a mechanical link between the power transmission And the torque control actuator flows up and down to randomly vary the rotational torque on the mechanical link part to test the efficiency of the planetary gearbox being tested, and the planetary gearbox being tested To provide a mechanical power cycle planetary gearbox tester that can eliminate the large capacity hydraulic supply and heat exchanger used to test the system.

Other objects and advantages of the invention will be described below and will be appreciated by the embodiments of the invention. Furthermore, the objects and advantages of the present invention can be realized by means and combinations indicated in the claims.

The present invention as a means for solving the above problems, the drive motor; A first shaft having one end coupled to the drive motor and rotating; A planetary gear box having a plurality of planetary gears having one end connected to the first shaft to receive rotational force, the planetary gears revolving around the center gear while being engaged with the single center gear and the center gear; A second shaft connected to the other end of the planetary gear box and rotating; A dummy gearbox and a load gearbox connected to one end of the first and second shafts to receive rotational force; A torsion shaft configured to form a mechanical link by connecting the other end of the dummy gearbox and the other end of the load gearbox so as to enable power transmission, so that power generated from the driving motor is circulated, and one end of the load gearbox. Torque control actuator that is connected to the upper, lower flow; is characterized in that it is further provided.

In addition, the torque control actuator is characterized in that the one end of the load gear box flows up and down, so that torque in the forward or reverse direction is applied to the planetary gear box.

In addition, the torque control actuator is characterized in that the amount of torque input to the load gearbox changes according to the phase difference in the flow up and down.

In addition, the first axis is characterized in that the measuring device for measuring the rotational speed and reduction ratio of the drive motor, the input torque generated from the torque control actuator is installed.

In addition, the planetary gear box is provided with an auxiliary member that is wrapped around the outer periphery of one end, characterized in that the torque sensor for measuring the output torque of the planetary gear box is installed at both ends of the auxiliary member.

In addition, the torque sensor is characterized in that the load cell is used. The drive motor is characterized in that the rotational direction change and the number of rotation changes in the forward or reverse direction.

In addition, the drive motor is capable of withstanding the friction generated in the 10 to 20% capacity of the planetary gearbox in the state where the torque is applied to the mechanical power circulation planetary gearbox test equipment through the torque control actuator. It is done.

In addition, the dummy gearbox and the load gearbox is characterized in that the cooling and lubrication system is connected respectively.

In addition, the efficiency (η) of the planetary gearbox is characterized in that it is calculated by the first equation.

[Formula 1]

In addition, when the gears in the planetary gear box is rotated at one end of the planetary gear box, the fixed member for fixing and floating the planetary gear box to the ground so that the planetary gear box flows, and the other end of the planetary gear box to the bottom It is characterized in that the support member for supporting so as not to be supported.

As described above, the present invention is a cost saving and large installation of test equipment due to not having to use a large-capacity hydraulic supply device and a large-scale heat exchanger device that was previously used to test the durability and efficiency of the planetary gearbox. There is an effect that can prevent the waste of space.

In addition, the present invention can easily change the torque applied to the planetary gear box to be tested by any user, there is an effect that the test of the planetary gear box is easy.

In addition, the present invention has the effect that the power is reduced by using the power generated in the drive motor in a cyclical manner.

Before describing the various embodiments of the present invention in detail, it will be appreciated that the application is not limited to the details of construction and arrangement of components described in the following detailed description or illustrated in the drawings. The invention may be embodied and carried out in other embodiments and carried out in various ways. It should also be noted that the device or element orientation (e.g., "front," "back," "up," "down," "top," "bottom, Expressions and predicates used herein for terms such as "left," " right, "" lateral, " and the like are used merely to simplify the description of the present invention, Or that the element has to have a particular orientation.

The present invention has the following features to achieve the above object.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the present specification and claims should not be construed as being limited to the common or dictionary meanings, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations. Also, terms such as " first "and" second "are used herein for the purpose of the description and the appended claims, and are not intended to indicate or imply their relative importance or purpose.

Hereinafter, the mechanical power cycle planetary gearbox test equipment according to a preferred embodiment of the present invention will be described in detail with reference to FIGS. 2 to 5.

As shown, the mechanical power cyclic planetary gear box test equipment according to the present invention is a driving motor (Driving Motor, 10), the first shaft 20, the planetary gear box (30), the second shaft ( 40), Dummy Gear Box (50), Load Gear Box (60), Torsion Shaft (70), Torque Control Actuator (80), Cooling and Lubrication System ( Cooling & Lubrication System, 90).

The drive motor 10 is for applying power, that is, rotational force to the test equipment according to the present invention, is mounted on one end of the first shaft 20 to be described later. Of course, the driving motor 10 is naturally the number of rotation and the direction of rotation can be freely adjusted by the user's selection.

In addition, the drive motor 10 is to rotate by using the degree (10 to 20% of the maximum capacity of the planetary gearbox 30) to overcome the friction in the torque applied to the test equipment of the present invention.

One end of the first shaft 20 is connected to the driving motor 10 to receive the rotational force, and the other end rotates. To pass. In addition, the first shaft 20 measures the input torque generated by the up and down flow of the torque control actuator 80 to be described later, the first shaft by the power transmitted from the drive motor 10 The measuring device 91 which measures the rotation speed and reduction ratio of the 20 or the drive motor 10 is provided.

The planetary gear box 30 is a test object to test the durability and efficiency, the first shaft 20 is connected to one end, a single central gear (Sun Gear) and the central axis formed in the center and It is composed of a plurality of planetary gear (Planetary Gear) that rotates around the center gear while being engaged to the center gear is used as a device for causing reverse, shift, deceleration.

One end of the planetary gear box 30, that is, the outer side circumference connected to the second shaft 40, the planetary gear box 30 as the sun gear, the planetary gear, and the ring gear in the planetary gear box 30 rotate. In order to prevent the flow of), the planetary gear box 30 is provided with a fixed member 31 in the form of a bearing fixed to the ground and floating.

In addition, the other end of the planetary gear box 30, that is, the direction side connected to the first shaft 20, the planetary gear box 30 is equally spaced apart from the ground due to the fixing member 31 is struck to the ground. In order to prevent that, the support member 32 is fixed to the bottom of the planetary gear box 30 to support the planetary gear box 30 is provided.

In addition, the planetary gear box 30 is further provided with an auxiliary member 33 fixed to the outer periphery of the planetary gear box 30, the left and right are symmetrical to each other and gradually narrowing in width, the auxiliary member ( 33 has a configuration for further coupling the auxiliary shaft 34 fixed to the ground perpendicular to the ground, by mounting the torque sensor 92 to the plurality of auxiliary shaft 34, respectively, torque control to be described later The output torque of the planetary gearbox 30 to which the input torque transmitted through the actuator 80 is applied can be measured. In the present invention, a load cell is used as the torque sensor 92. (The above embodiment is illustrated in FIG. 5 when the above configuration is applied to the conventional planetary gearbox test equipment as shown in FIG. Of course, if the load cell is also a torque sensor 92 that can measure the output torque may be replaced by a variety of equipment in addition to the load cell. That is, due to the fixing member 31, the support member 32, the auxiliary member 33, the plurality of load cells are discharged from the carrier in the planetary gear box without being affected by the weight of the planetary gear box 30 The output torque can be measured.

For the sake of understanding, the internal driving form of the planetary gear box, which is the test object of the present invention, will be described with reference to FIG. 2. As shown in FIG. 2, a plurality of sun gears 1 receiving the rotational force of the motor M are provided. The planetary gear 2 is engaged, the ring gear 3 is meshed with the planetary gear 2, and the carrier 4, which is powered by the power transmission, is coupled to the planetary gear 2 to output rotational force, and the sun gear 1 ) And the carrier (4) is embedded in the gearbox (6) by the bearing (5).

The second shaft 40 is connected to the other end of the planetary gear box 30 that receives the rotational force through the first shaft 20, the first shaft 20, the planetary gear box 30, The second shaft 40 is made of a structure that receives the rotational force on the same horizontal line with each other.

The dummy gearbox 50 and the load gearbox 60 are connected to the first shaft 20 and the second shaft 40 so that one end of the dummy gearbox 50 and the load gearbox 60 can transmit power.

In addition, each of the dummy gearbox 50 and the load gearbox 60 is connected to a cooling and lubrication system 90 for cooling the generated heat.

Of course, in each of the dummy gearbox 50 and the load gearbox 60, various power transmission means such as chains, belts, etc. are engaged and rotated according to the embodiment of the user to transmit the rotational force transmitted from one end to the other end. Of course.

The torsion shaft 70 is connected to the other end of the dummy gearbox 50 and the other end of the load gearbox 60 to have a mechanical link structure of the components of the present invention constitute one closing, Due to the torsion shaft 70, the rotational force (power) of the drive motor 10 is the first shaft 20, the planetary gear box 30, the second shaft 40, the load gear box 60, the torsion The shaft 70, the dummy gearbox 50 can be sequentially circulated.

The torque control actuator 80 is installed at the other end of the load gearbox 60, that is, the side where the torsion shaft 70 is connected, and flows up and down. One end of the torque control actuator 80 is provided. Is installed on the ground, the other end is connected to the load gearbox 60, when the torque control actuator 80 flows up and down by the piston movement, the other end of the load gearbox 60 also torque control actuator ( Similarly to 80, the second shaft 40 and the load gearbox 60 are allowed to flow up and down about the hinge (Hinge) connected.

If, by the torque control actuator 80, the load gearbox 60 flows upward or the load gearbox 60, which has been raised, flows downward, thereby retarding the load gearbox 60 placed horizontally. When (α) is generated, the power transmission trajectory (first shaft 20, planetary gearbox 30, second shaft 40, load gearbox) of the entire test equipment of the present invention is generated by the phase difference α. 60), the torque is applied to the torsion shaft 70, the dummy gearbox 50, the corresponding torque is applied to the planetary gearbox 30 under test because the components of the present invention is connected to the power transmission Lose.

In addition, the torque is increased as the other end of the load gearbox 60 is lifted upward by the torque control actuator 80, on the contrary, the other end of the load gearbox 60, which is lifted on the upper side, is the torque. When descending by the control actuator 80 to increase the torque in the opposite direction to the above, when the load gearbox 60 is raised or lowered on either side of the upper or lower to transfer the torque in the forward or reverse direction It is up to you.

The efficiency η of the planetary gearbox 30 according to the above configuration and operation is calculated by the following first equation.

[Formula 1]

(In this case, the input torque is the first torque measured by the measuring device 91 generated by the torque control actuator 80 before being applied to the planetary gearbox 30, the output torque is the planetary after the input torque is applied Torque measured in the gearbox 30, the reduction ratio indicates the reduction ratio measured in the measuring device 91)

The cooling and lubrication system 90 is installed in the dummy gearbox 50 and the load gearbox 60, respectively, and is a device for cooling the heat generated in the dummy and load gearbox 60.

As mentioned above, although this invention was demonstrated by the limited embodiment and drawing, this invention is not limited by this, The person of ordinary skill in the art to which this invention belongs, Various modifications and changes may be made without departing from the scope of the appended claims.

1 is a view showing a conventional planetary gear test equipment.

2 is a view for explaining a general driving form of the planetary gear box.

Figure 3 is a plan view of one embodiment showing a test equipment according to the present invention.

4 is a side view of FIG. 3;

Figure 5 is a view of one embodiment applying the configuration of the present invention to the conventional test equipment shown in FIG.

<Indication of symbols for main parts of drawing>

10: drive motor 20: first axis

30: planetary gearbox 31: fixing member

32: support member 33: auxiliary member

40: 2nd axis 50: dummy gearbox

60: load gearbox 70: torsion shaft

80: torque control actuator 90: cooling and lubrication system

91: measuring device 92: load cell

Claims (11)

A drive motor 10; A first shaft 20 having one end coupled to the drive motor 10 and rotating; One end is connected to the first shaft 20 to receive a rotational force, and the planetary gear box 30 consisting of a plurality of planetary gears revolving around the center gear while being engaged with the single center gear and the center gear; ; A second shaft 40 connected to the other end of the planetary gear box 30 and rotated; A dummy gearbox 50 and a load gearbox 60 connected to one end of each of the first and second shafts 20 and 40 to receive rotational force; A torsion shaft 70 configured to form a mechanical link by connecting the other end of the dummy gearbox 50 and the other end of the load gearbox 60 so as to enable power transmission. Allow power to circulate, Torque control actuator (80) which is connected to one end of the load gear box (60) and flows up and down; mechanical mechanical circulation type planetary gear box test equipment further comprising. The method of claim 1, The torque control actuator 80 is One end of the load gear box (60) flows up and down, mechanical planetary power planetary gear box test equipment, characterized in that the planetary gear box 30 to be applied in the forward or reverse torque. The method of claim 1, The torque control actuator 80 is Mechanical power cyclic planetary gear box test equipment, characterized in that the torque input to the load gearbox 60 is changed according to the phase difference in the up and down flow. The method of claim 1, In the first shaft 20 Mechanical power cyclic planetary gear box test equipment, characterized in that the measuring device 91 for measuring the rotational speed and reduction ratio of the drive motor 10, the input torque generated from the torque control actuator (80) is installed. The method of claim 1, The planetary gear box 30 has an auxiliary member 33 coupled to a carrier in the planetary gear box at one end thereof, and torques for measuring the output torque of the planetary gear box 30 at both ends of the auxiliary member 33. Mechanical power cyclic planetary gearbox testing equipment, characterized in that the sensor 92 is installed. The method of claim 5, As the torque sensor 92 Mechanical power cyclic planetary gearbox test equipment, characterized in that the load cell is used. The method of claim 1, The drive motor 10 is Mechanical power cyclic planetary gearbox test equipment, characterized in that the rotation direction and the rotation speed change in the forward or reverse direction is possible. The method of claim 1, The drive motor 10 is The torque control actuator 80 to withstand the friction generated in the 10-20% capacity of the planetary gearbox 30, while the torque is applied to the mechanical power cycle planetary gearbox test equipment. Mechanical power cyclic planetary gearbox testing equipment. The method of claim 1, In the dummy gearbox 50 and the load gearbox 60 Mechanical power cyclic planetary gearbox test equipment, characterized in that the cooling and lubrication system (90) is connected to each other. The method of claim 1, The efficiency (η) of the planetary gearbox 30 is mechanical power circuit type planetary gearbox test equipment, characterized in that calculated by the first equation. [Formula 1]

The method of claim 1, One end of the planetary gear box 30, when the gears in the planetary gear box 30 is rotated, the fixing member for fixing and floating the planetary gear box 30 to the ground so that the planetary gear box 30 flows ( 31) and the mechanical power-cycle planetary gear box test equipment, characterized in that the other end is provided with a support member 32 for supporting the planetary gear box 30 so as not to fall to the bottom.

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