KR101157476B1 - Backlash adjuster and test apparatus for gearbox having the same - Google Patents

Abstract

PURPOSE: A backlash control device and a transmission testing device having the same are provided to initialize a torque applied to a test transmission and to preciously perform a performance test of the transmission by removing backlashes accumulated on a driving path of a transmission testing device. CONSTITUTION: A transmission testing device having a backlash control device comprises a torque generating device(4) and backlash control device(10). The torque generating device is connected to one side of a testing transmission, thereby generating a torque to be applied to the transmission. The backlash control unit comprises a first disc connected to the torque generating device and a second disc connected to the other side of the transmission. The second disc rotates to remove backlashes existing on a driving path driving the transmission. A plurality of joining holes is formed in the first and second discs. The first and second discs are touched to each other in the state that the discs can be relatively rotated while being faced to each other or spaced at a predetermined distance. At least some of the joining holes formed in the first disc is aligned with at least some of the joining holes formed in the second disc by the first and second disc being relatively rotating.

Description

Backlash Adjuster and Transmission Apparatus including the same {Backlash Adjuster and Test Apparatus for Gearbox having the Same}

The present invention relates to a backlash adjustment apparatus and a transmission test apparatus including the same, and more particularly, a backlash adjustment apparatus capable of removing backlash existing on a driving path by adjusting a backlash by rotating a disk coupled to a rotating shaft, and It relates to a transmission test apparatus including the same.

In general, a transmission such as a speed reducer or a reducer used in various driving apparatuses such as a vehicle or a generator may include a gear box in which a plurality of gears are arranged. Such transmission should satisfy the test results by performing the required performance test according to various conditions, that is, ensuring the stability of the transmission durability and accurate torque transmission characteristics before actual use.

For this purpose, the required performance test for the transmission is performed by forcibly applying torque and torque to the transmission to be tested (hereinafter, referred to as 'transmission under test') by using a motor, for example, by connecting a motor to an input of a transmission under test. The speed of the transmission is increased or decreased, and a performance test of the transmission is performed while increasing or decreasing the torque applied to the transmission under test using a separate motor or a torque generating device.

However, the transmission test apparatus includes a plurality of gearboxes, a motor, and a torque generating device which are directly or indirectly connected to the transmission under test. Since each of these apparatuses has a backlash, a plurality of gearboxes, When the motor, the lower torque generating device, and the transmission under test are connected, there is a problem in that backlash is accumulated on the entire driving path.

When the backlash is accumulated in this way, for example, when the torque generating device generates torque by applying the stroke of the cylinder and applies it to the transmission under test, even if the stroke is performed, the torque is not applied as much as the backlash, but only the stroke of the cylinder is generated. This results in a section, which wastes stroke stroke of the cylinder by the backlash. In addition, the backlash causes a change in the input / output value of the transmission, which causes a problem in that an accurate performance test of the transmission cannot be performed.

According to one or more exemplary embodiments of the present inventive concept, there is provided a backlash control device capable of removing backlash accumulated on a drive path of a transmission test device and a transmission test device including the control device.

According to an exemplary embodiment of the inventive concept, a first disk is mechanically connected to one end of a transmission under test; And a second disk mechanically connected to the other end of the transmission, wherein the second disk is rotatable to remove backlash existing on the transmission and a driving path for driving the transmission, and wherein the first disk is rotatable. The disk and the second disk may be provided with a backlash adjustment device each formed with at least one fastening hole so that both can be coupled to each other.

According to an exemplary embodiment of the inventive concept, a torque generating device connected to one end of a transmission under test to generate torque to be applied to the transmission; And a backlash adjuster including a first disk connected to the torque generating device and a second disk connected to the other end of the transmission, wherein the second disk is on a driving path for driving the transmission and the transmission. The transmission test apparatus may be provided to be rotatable to remove the existing backlash, and the first disk and the second disk may be provided with at least one fastening hole so that both of them can be coupled to each other.

According to one or more exemplary embodiments of the inventive concept, by removing backlash accumulated on the drive path of the transmission test apparatus, it is possible to initialize the torque applied to the transmission under test and to perform the performance test of the transmission more precisely. can do.

1 illustrates a transmission testing apparatus according to an exemplary embodiment of the inventive concept.
Figure 2a is a perspective view of the backlash adjustment unit according to an exemplary embodiment of the present invention and Figure 2b is a side view of the backlash adjustment unit,
3 is a view showing a state in which the disc 21 is fixed by the fixing portion 20 of the backlash adjustment unit of FIG.
Fig. 4 is a flowchart showing the step of removing backlash in the transmission test apparatus according to an exemplary embodiment of the present inventive concept.
5 shows a disc 31 according to a first exemplary embodiment of the inventive concept, and
Fig. 6 shows a disc 31 according to a second exemplary embodiment of the inventive concept.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features, and advantages of the present invention will become more readily apparent from the following description of preferred embodiments with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, the embodiments disclosed herein are provided so that the disclosure can be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In this specification, where a component is mentioned as being on another component, it means that it may be formed directly on the other component or a third component may be placed therebetween.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. As used in the specification, 'comprises' and / or 'comprising' does not exclude the presence or addition of one or more other components.

In addition, the expression 'connected' to one component in this specification means not only a direct connection between the components, but also includes an indirect connection through another third component. For example, the expression 'the transmission under test is connected to the gearbox' means that the axis of rotation of the transmission under test is directly connected to the axis of rotation of the gearbox and that one or more other gearboxes or components are connected between the gearbox under test and the gearbox. This includes all cases that are indirectly connected.

Hereinafter, the present invention will be described in detail with reference to the drawings. In describing the following specific embodiments, various specific details are set forth in order to explain and understand the invention in more detail. However, one of ordinary skill in the art can understand that the present invention can be used without these various specific details. In some cases, it is mentioned in advance that parts of the invention that are commonly known in the description of the invention and which are not highly related to the invention are not described in order to prevent confusion in describing the invention.

1 is a diagram illustrating a transmission testing apparatus for testing a transmission under test according to an exemplary embodiment of the inventive concept.

In one embodiment, the transmission test apparatus includes one or more gearboxes 2, 3, a torque generator 4, a motor 5, a torque meter 6, a support 7, and a backlash adjuster 10. And a transmission (transmission under test) 1, which is a test object, is located between the gearboxes 2 and 3.

The 'transmission under test' referred to in the present specification is a test object to be tested by the test apparatus of the present invention, and means any one of a gearbox or a gearbox of various forms and functions such as a speed reducer and a speed reducer. The above transmissions may be installed in the test apparatus for testing.

The transmission under test 1 may be installed in the test apparatus by one or more gearboxes 2, 3. In the illustrated embodiment, the gearbox 2 is installed on a drive path for driving the transmission 1 under test, specifically, one end of the gearbox 2 is connected to the torque generating device 4 and the other end is tested. It is connected to the transmission (1). One end of the gearbox 3 is connected to the backlash adjustment unit 10 and the other end is connected to the transmission 1 under test.

The test apparatus according to an embodiment of the present invention may include a torque generating device 4 and a motor 5 for applying torque and rotational force to test the transmission 1 under test. The torque generator 4 is a device for applying a predetermined torque to the transmission 1 to be tested, and the torque generation method can be variously implemented according to specific embodiments. In the illustrated embodiment, cylinders are installed on both sides of the torque generating device 4, and the cylinder generates a predetermined torque on the rotating shaft by performing a stroke operation, and the gear under test 1 is transmitted through the gearboxes 2 and 3. The generated torque is applied to. In this state, the motor 5 transmits the rotational driving force to the transmission 1 under test so that the transmission 1 under test can be subjected to a performance test for a predetermined torque and rotational force.

In the embodiment shown in FIG. 1, the torque generating device 4 is located between two gearboxes 2 and 3 and the motor 5 is connected to the gearbox 3. This arrangement of (5) is only one embodiment, and the arrangement or connection form of the torque generating device 4, the motor 5, and the gearboxes 2, 3 may vary according to various embodiments. to be.

According to an embodiment of the present invention, the backlash adjustment unit 10 is disposed between the torque generating device 4 and the gearbox 3 to adjust the backlash existing on the drive path in the transmission test apparatus, preferably It removes backlash. Here, 'drive path' refers to each component of the test apparatus, that is, the transmission 1 under test, the gearboxes 2 and 3, and the torque in order to apply torque and rotational force to the transmission 1 under test in the transmission test apparatus shown. It means a drive loop formed by connecting each of the generator 4 and the rotational axis of the motor 5 with the rotational axis of the neighboring components.

For example, in the embodiment shown in FIG. 1, the drive path is formed in the form of a closed loop by the transmission 1 under test, the gear boxes 2 and 3 and the torque generating device 4. As can be seen in the figure, a plurality of gear units including the transmission 1 under test and one or more gearboxes 2 and 3 are connected to the driving path of the test apparatus, so that the backlash existing in each gear apparatus is accumulated. It exists on the drive path, the backlash control unit 10 according to an embodiment of the present invention can be reduced or eliminated by adjusting the backlash present on the drive path in this way.

2A and 2B show perspective and side views, respectively, of a backlash adjuster 10 (hereinafter also referred to as a 'backlash adjuster') in accordance with an exemplary embodiment of the inventive concept.

Backlash adjustment unit 10 according to an embodiment of the present invention shown includes a fixing portion 20 and the locking portion 30. A bearing block 50 for supporting the rotating shaft 23 may be added between the fixing part 20 and the locking part 30, and the bearing block 50 is supported by the support part 53 at the bottom of the test apparatus. do. The fixing part 20 fixes the driving rotary shaft 23 of the driving path, and the locking part 30 disconnects the driving path or fastens the disconnected part so that the driving path is one of a closed loop and an open loop. Be in the state of.

In one embodiment, the fixing part 20 is a fixing disk 21 which rotates in engagement with the driving rotary shaft 23 of the test apparatus, the fixing body 25 supported by the bottom of the test apparatus, and the axial direction of the rotating shaft. It includes a sliding portion 27 is coupled to the fixed portion main body to be slidable.

The fixed disk 21 is a disc that is coupled to the rotary shaft 23 of the test apparatus and integrally rotates with the rotary shaft 23, and may be integrally formed with the rotary shaft 23 and fitted to the rotary shaft 23 to be integral with the rotary shaft 23. It may be formed to rotate. The fixing disk 21 is pressurized by the bite 28 formed in the fixing body 25 and the sliding portion 27, respectively, so that the disk is fixed and the rotation of the rotating shaft 23 can be suppressed.

The fixing body 25 is supported by the bottom of the transmission testing apparatus, and includes one of the pair of bytes 28 on the upper portion of the fixing body 25 to fix the fixing disk 21. Doing.

The sliding portion 27 is a member coupled to the fixing portion main body so as to be slidable in the rotational axis direction of the fixing disk, and the other byte of the pair of bytes 28 for fixing the fixing disk 21. Is formed at the top. The sliding part 27 may perform a sliding motion automatically or manually. In the illustrated embodiment, the sliding part 27 is manually operated by a user operating a handle 29 installed at one end of the sliding part 27. Sliding movement of the can be performed.

In this regard, FIG. 3 is a view showing a state in which the disc 21 is fixed by the sliding motion of the sliding part 27 of the fixing part 20. As can be seen from the comparison with FIG. 2B, the sliding portion 27 is moved to the right side of the drawing, that is, the support portion 53 side by the operation of the handle 29. FIG. As clearly shown in FIG. 2A, the support part 53 has a through hole 55 formed therein so that the sliding part 27 can penetrate the central part, and thus the sliding part 27 is inserted into the through hole 55. And the sliding movement can be continued. Finally, as shown in FIG. 3, the pair of bites 28 formed on the sliding portion 27 and the fixing portion main body 25 press the fixing disk 21 to press the disk ( 21) to fix the movement.

In one embodiment of the present invention, the pair of bites 28, the checkered irregularities are formed on the surface in contact with the fixing disk 21, thereby making the fixing disk 21 more stable Can be pressurized. Further, in an alternative embodiment, checkered irregularities may be formed on the surface of the fixing disk 21 that is in contact with the pair of bites 28.

Referring again to FIGS. 2A and 2B, the locking unit 30 includes a pair of disks 31 and a disk fastening unit 33 coupled to the disks 31. The disk 31 includes a first disk 31a and a second disk 31b, and the disk fastening portion 33 includes a first disk fastening portion 33a and a first disk fastening portion that engage the first disk 31a with a rotating shaft. And a second disk fastening portion 33b for coupling the two disks 31b with the rotating shaft. In the illustrated embodiment, the first disk fastening portion 33a is connected to the fixed shaft 20 side rotating shaft 23, and the second disk fastening portion 33b is connected to the gearbox 3 side rotating shaft.

The first disk 31a and the second disk 31b are in contact with each other in a rotatable state with respect to each other or are spaced a predetermined distance apart. That is, although the first disk 31a and the second disk 31b are slightly spaced apart from each other in FIG. 2B, in the alternative embodiment, the first disk and the second disk may be in contact with each other. 31b is in a state rotatable relative to the first disk 31a.

In a preferred embodiment of the present invention, a plurality of fastening holes 35 are formed in each of the first disk 31a and the second disk 31b. The plurality of fastening holes of the first disk 31a are arranged along the circumference at a predetermined distance from the center of the first disk 31a, and the fastening holes of the second disk 31b are also the centers of the second disk 31b. Are arranged at predetermined intervals along the circumference separated by a distance equal to the predetermined distance. In one embodiment, the fastening holes of the first disk 31a and the second disk 31b both have the same diameter. In addition, the number of fastening holes of the first disk 31a and the number of fastening holes of the second disk 31b may be the same, but may be different. In the illustrated embodiment, the number of fastening holes of the first disk is 36 and the number of fastening holes of the second disk 31b is 30. Therefore, as the first disk 31a and the second disk 31b rotate relatively, at least some of the plurality of fastening holes formed in the first disk 31a are at least one of the plurality of fastening holes in the second disk 31b. Some and center are aligned. The coupling holes 35 are coupled to the coupling holes 35 through the coupling means such as bolts or screws, and thus the first disk 31a and the second disk 31b are integrally rotated.

The step of adjusting the backlash of the transmission test apparatus according to the configuration of the fixing unit 20 and the locking unit 30 according to an embodiment of the present invention as described above will be described in FIG.

Fig. 4 is a flow chart showing the step of removing backlash in the transmission test apparatus according to an exemplary embodiment of the inventive concept. Referring to Fig. 4, first, it is assumed that the transmission test apparatus drives the torque generating apparatus 4 and the motor 5 before the step S401 to test the transmission 1 under test, and during this test, the locking part ( Assume that the first disk 31a and the second disk 31b of 30 are coupled to each other by fastening means. During the test of the transmission 1 under test, backlash continues to accumulate on the drive path of the test apparatus including the gearboxes 2 and 3, the torque generating apparatus 4, and the motor 5.

In this state, the operation | work which fixes the fixing disk 21 of the fixing | fixed part 20 is performed so that the rotating shaft 23 may not rotate in step S401. In the illustrated embodiment, the pair of bites 28 formed on the fixing body 25 and the sliding portion 27 presses the fixing disk 21, thereby suppressing the movement of the disk 21 and rotating shaft 23. ) Stop the rotation.

Thereafter, in step S403, the first disk 31a and the second disk 31b of the locking unit 30 are separated from each other. In the illustrated embodiment, the discs 31a and 31b can be separated by disassembling the fastening means which has fastened the first disc 31a and the second disc 31b. When the first and second disks 31a and 31b are separated, the second disk 31b may rotate relative to the first disk 31a. That is, in the step S401, the rotating shaft 23 to which the first disk 31a is connected is fixed by the fixing unit 20, so that the first disk 31a also cannot be rotated, but the second disk 31b becomes a state rotatable irrespective of this.

Since the first disk 31a and the second disk 31b are separated from each other, the driving path in the test apparatus of FIG. 1 can be regarded as being opened in a closed loop to become a straight path, and in this state, step S405. ), The backlash accumulated on the entire drive path is removed by rotating the rotating shaft on the second disk 31b side. In the illustrated embodiment, the backlash can be removed by rotating the rotary shaft connected to the first disk 31b using a tool such as a torque wrench.

Thereafter, in step S407, the first disk 31a and the second disk 31b are coupled again by the fastening means. The fastening means may be any fastening means such as a bolt or a screw. The fastening means may be penetrated only through fastening holes whose centers are aligned with each other among the fastening holes of the first disc 31a and the fastening holes of the second disc 31b. Join the disk by tightening.

At this time, since the second disk 31b is rotated by a predetermined angle to remove the backlash in step S405, the fastening of the center of the fastening holes of the first disk 31a and the fastening holes of the second disk 31b is aligned. The ball may be different from the fastening hole that the center is aligned before step S405. This will be described later with reference to FIGS. 5 and 6.

Thereafter, in step S409, the fixing disk 21 is released. That is, in the illustrated embodiment, the sliding unit 27 is moved by the operation of the handle 29 to release the pressurization of the fixing disk 21 by the bite 28, thereby finally reducing the transmission test apparatus without backlash. Can be set to the initial state. According to a specific embodiment, the order of the step S407 of fastening the first disk and the second disk and the step S409 of releasing the fixing disk 21 may be reversed.

In addition, according to a specific embodiment, the step of suppressing the movement of the rotating shaft 23 by fixing the fixing disk 21 may be omitted. That is, the backlash adjustment unit 10 may not include the fixing unit 20 but may include only the locking unit 30. In this case, the first disk and the second disk of the locking unit 30 are separated (S403), the rotational axis of the second disk is rotated to remove backlash (S405), and the first disk and the second disk are fastened again ( The backlash removal operation may be performed only by performing the step S407).

5 and 6, a configuration of the fastening hole 35 that rotates the second disk 31b by a predetermined angle and then refastens the first disk 31a will be described.

Fig. 5 shows a disc 31 according to the first exemplary embodiment of the inventive concept. FIG. 5 schematically shows how the disks 31a and 31b overlap when looking from the right to the left, that is, when looking at the second disk 31b, based on FIG. 2A or 2B. The fastening holes 35 of the first disk 31a and the second disk 31b are both formed with the same diameter and are spaced apart from the fastening holes adjacent to each other on the circumference at the same distance from the center of the disk.

In the embodiment shown in Fig. 5, there are 36 fastening holes of the first disk 31a and 30 fastening holes of the second disk 31b. When there are 36 fastening holes, any fastening hole and neighboring fastening holes are spaced apart by 10 degrees, and when there are 30 fastening holes, any fastening hole and adjacent fastening holes are spaced apart by 12 degrees. If any of the fastening holes of the first disk 31a having the ball and any of the fastening holes of the second disk 31b having the 30 fastening holes are aligned with each other, the immediately adjacent fastening balls of the corresponding fastening holes may It can be seen that this 2 degrees off. Accordingly, as can be seen from FIG. 5, the fastening hole 35a located in the uppermost direction (12 o'clock) of the drawing among the fastening holes of the second disc 31b is aligned with the fastening hole of the first disc 31a. If so, the fastening holes of the first disk 31a adjacent to the right side of the fastening hole and the fastening holes of the second disk 31b are separated by 2 degrees from each other, and the fastening holes adjacent to the right side are 4 degrees from each other. As far as it is off.

Since the least common multiple of 10 and 12 is 60, the second disk 31b having a 12 degree separation distance from the neighboring fastening hole forms 60 degrees with every fifth fastening hole, and the first disk having a 10 degree separation distance from the neighboring fastening hole ( 31a) is 60 degrees for every sixth fastener. Therefore, as shown in Fig. 5, if the fastening holes 35a of the second disk 31b are aligned with the fastening holes of the first disk, the fastening holes 35b of the first disk and the second disk are spaced 60 degrees apart. ), And as a result, the fastening holes of the first disk and the second disk at the position are aligned with each other at a position separated by 60 degrees.

In this state, in order to remove the backlash of the test apparatus, for example, when the second disk 31b is rotated counterclockwise by 2 degrees, the fastening hole adjacent to the right side of the fastening hole 35a is moved by 2 degrees. It will be appreciated that the fastening holes of the first disk 31a are aligned with the center, and the fastening holes of the first disk and the second disk at the corresponding positions are aligned with each other at positions 60 degrees apart from this position.

According to the configuration of the disk 31 as described above, each time the second disk 31b is rotated at two-degree intervals, even if the positions of the fastening holes aligned between the first disk and the second disk are changed, six pairs of fastening holes are provided. It can be seen that the center is aligned with each other, it is possible to combine the first disk and the second disk by fastening the aligned pair of fastening holes by the fastening means.

In alternative embodiments, the number of fastening holes in the first disk and the second disk may be interchanged. That is, 30 fastening holes of the 1st disk 31a and 36 fastening holes of the 2nd disk 31b may be formed. In addition, the number of fastening holes is not limited to 30 or 36, of course, may vary depending on the embodiment. However, as the number of fastening holes increases, even though the rotation angle of the second disc is small, there is a possibility that the fastening holes aligned with the first disc are more likely to exist, so that finer backlash adjustment is possible, but the limited surface of the disc 31 is limited. It should be noted that increasing the number of fastening holes may decrease the strength of the disk and decrease the rigidity of the fastening means as the diameter of the fastening holes decreases.

Fig. 6 shows a disc 31 according to a second exemplary embodiment of the inventive concept. Compared with the disk 31 of FIG. 5, the first disk 31a and the second disk 31b shown in FIG. 6 have the first row of fastening holes (35a, 35b, etc.) on the outer side, and are also placed twice on the inner side. Row fastening holes 35c are further included.

That is, the plurality of fastening holes of the first disk 31a may include a plurality of fastening holes in a first row arranged along a circumference spaced by a first distance from the center of the first disk and the center of the first disk. And a plurality of fastening holes in a second row arranged along a circumference spaced by a second distance, and likewise, the plurality of fastening holes in the second disc 31b are based on the center of the second disc. A plurality of fastening holes in a first row arranged along a circumference spaced by a distance, and a plurality of fastening holes in a second row arranged along a circumference spaced by the second distance with respect to a center of the second disk. .

At this time, in each of the first and second disks 31a and 31b, each of the plurality of fastening holes in the second row is located one between the plurality of fastening holes in the first row and the adjacent fastening holes. In the illustrated embodiment, each of the plurality of fastening holes in the second row is located in the middle of the plurality of fastening holes in the first row and adjacent fastening holes. Thus, for example, the first disk 31a may have 36 first rows of fasteners and 36 second rows of fasteners, and the second disk 31b may have 30 first rows of fasteners and 30 second rows of fasteners. You can have a ball.

When the fastening holes are configured in a two-row structure as described above, 72 and 60 fastening holes are substantially equal to each disc 31a and 31b, respectively. That is, the first disk 31a is formed by 72 fastening holes spaced by 5 degrees, and the second disk 31b is formed by 60 fastening holes spaced 6 degrees apart. The angle difference between them becomes 1 degree. As a result, even if the second disk 31b rotates only one degree, there is a fastening hole aligned with the first disk, so that the backlash can be more precisely adjusted as compared with FIG.

In the case of the embodiment of Fig. 6, the number of fastening holes of the first disk and the second disk may be changed depending on the embodiment. That is, 30 fastening holes in the first row and the second row of the first disk 31a may be formed, and 36 fastening holes in the first row and the second row of the second disk 31b may be formed, respectively. The number of fasteners is also not limited to 30 or 36, but may vary depending on the embodiment. In addition, although the size of the fastening holes of the second row is smaller than that of the fastening holes of the first row in FIG. 6, the size of the fastening holes of the first row and the second row may be the same.

As described above, although the present invention has been described with reference to the limited embodiments and the drawings, the present invention is not limited to the above embodiments, and those skilled in the art to which the present invention pertains various modifications and variations from these descriptions. This is possible. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the equivalents of the claims, as well as the claims.

1: transmission under test 2, 3: gearbox
4: torque generator 5: motor
7: support 10: backlash adjustment part
20: fixing part 21: fixing disk
25: fixed part body 27: sliding part
30: locking portion 31: disk
35: fastener

Claims (19)

A torque generating device connected to one end of the transmission under test to generate torque to be applied to the transmission; And
And a backlash adjuster including a first disk connected to the torque generating device and a second disk connected to the other end of the transmission.
The second disk is rotatable to remove backlash existing on the transmission and a drive path for driving the transmission,
A plurality of fastening holes are formed in the first disk and the second disk so that both of them can be coupled to each other.
The first disc and the second disc are in contact with each other in a relatively rotatable state facing each other or are spaced a predetermined distance apart,
As the second disk and the first disk are relatively rotated, at least some of the plurality of fastening holes formed in the first disk are aligned with at least some of the plurality of fastening holes formed in the second disk. Gearbox testing device. delete The method of claim 1,
A plurality of fastening holes formed in the first disk are disposed in a circular shape with respect to the center of the first disk,
A plurality of fastening holes formed in the second disk is a transmission test apparatus, characterized in that arranged in a circle with respect to the center of the second disk. The transmission test apparatus according to claim 3, wherein the plurality of fastening holes of the first disk are 36 and the plurality of fastening holes of the second disk are 30. The method of claim 1,
The plurality of fastening holes formed in the first disk may include a plurality of first fastening holes disposed in a circle and spaced apart by a first distance from the center of the first disk, and a second distance from the center of the first disk. Including a plurality of second fastening holes spaced apart by a circle and
The plurality of fastening holes formed in the second disk may include a plurality of third fastening holes disposed in a circle and spaced apart by the first distance from the center of the second disk, and the first fastening holes based on the center of the second disk. A plurality of fourth fastening holes disposed in a circle spaced apart by two distances,
As the second disk is rotated, at least some of the first fastening hole and the second fastening hole are aligned with at least some of the third fastening hole and the fourth fastening hole. The transmission test apparatus according to claim 5, wherein the number of the plurality of first fastening holes and the second fastening holes is 36, and the number of the plurality of third and fourth fastening holes is 30, respectively. delete The method according to any one of claims 1 and 3 to 6,
While the transmission is driven, the transmission test apparatus, characterized in that the coupling means is penetrated through the coupling holes arranged in each other of the coupling hole formed in the first disk and the coupling hole formed in the second disk. The method according to any one of claims 1 and 3 to 6,
The backlash control unit is a transmission test device, characterized in that further comprising a fixing unit for fixing the rotation axis of the first disk to suppress the rotation. The method of claim 9, wherein the fixing unit,
A fixing disk coupled to the rotating shaft of the first disk to rotate integrally with the rotating shaft;
A fixing unit body supported by the bottom of the transmission test apparatus and including one of a pair of bytes for pressing and fixing the fixing disk; And
And a sliding part coupled to the fixing part main body to be slidable in the rotation axis direction of the fixing disk, the sliding part including the other one of the pair of bytes. The transmission test apparatus according to claim 10, wherein checkered irregularities are formed on a surface of the pair of bites in contact with the fixing disk. The method according to any one of claims 1 and 3 to 6,
Further comprising: a first gear box is installed on the drive path for driving the transmission,
One end of the first gearbox is connected to the torque generating device, the other end of the first gearbox, the transmission test apparatus, characterized in that connected to the transmission under test. The method according to any one of claims 1 and 3 to 6,
And a second gear box installed on a drive path for driving the transmission.
One end of the second gear box is connected to the second disk, the other end of the second gear box, the transmission test apparatus, characterized in that connected to the transmission under test. A first disk mechanically connected to one end of the transmission under test; And
And a second disk mechanically connected to the other end of the transmission.
The second disk is rotatable to remove backlash existing on the transmission and the driving path for driving the transmission, and a plurality of fastening holes are respectively provided on the first disk and the second disk so that both of them can be coupled to each other. Formed,
The second disk and the first disk face each other, the second disk being in contact with the first disk or spaced a predetermined distance relative to the first disk,
As the second disk and the first disk are rotated relatively, at least some of the plurality of fastening holes formed in the first disk are aligned with at least some of the plurality of fastening holes formed in the second disk. Backlash Control. delete 15. The method of claim 14,
The plurality of fastening holes formed in the first disk are disposed in a circle with respect to the center of the first disk,
The plurality of fastening holes formed in the second disk is a backlash adjustment device, characterized in that arranged in a circle with respect to the center of the second disk. 15. The method of claim 14,
The plurality of fastening holes formed in the first disk may include a plurality of first fastening holes disposed in a circle and spaced apart by a first distance from the center of the first disk, and a second distance from the center of the first disk. Including a plurality of second fastening holes spaced apart by a circle and
The plurality of fastening holes formed in the second disk may include a plurality of third fastening holes disposed in a circle and spaced apart by the first distance from the center of the second disk, and the first fastening holes based on the center of the second disk. A plurality of fourth fastening holes disposed in a circle spaced apart by two distances,
As the second disk is rotated, at least some of the first fastening hole and the second fastening hole are aligned with at least some of the third fastening hole and the fourth fastening hole. delete The method according to any one of claims 14 and 16 to 17,
The backlash control unit further comprises a fixing unit for fixing the rotation axis of the first disk to suppress the rotation, the fixing unit,
A fixing disk coupled to the rotating shaft of the first disk to rotate integrally with the rotating shaft;
A fixing unit body supported by the bottom of the transmission test apparatus and including one of a pair of bytes for pressing and fixing the fixing disk; And
And a sliding part coupled to the fixing part main body to be slidable in the rotation axis direction of the fixing disk, the sliding part including the other one of the pair of bytes.

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