JP2005091075A - Vibration test equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To save space by integrating all functions using an empty space. Also, provide a vibration testing device that can start operation immediately.
A power supply unit 51 and a power module 52 are arranged in an empty space on a base 2 below horizontal vibration generating units 21 and 22 installed on an upper surface side of a support frame 10. Further, the operation panel unit and the main body unit including the control circuit are separated, and the main body unit is disposed in an empty space on the base 2. The members such as the power supply unit 51 and the power module 52 necessary as the vibration test apparatus 1 are integrally arranged using an empty space. Thereby, as a preparation for the operation of the system, the operation can be performed immediately by simply connecting the power cable and the air hose.
[Selection] FIG.

Description

  The present invention relates to a multi-axis vibration test apparatus used for vibration tests of various structures and the like.

  FIG. 17 shows a conventional multi-axis vibration test apparatus of this type. The vibration test apparatus 81 includes a hydrostatic bearing type vibration generator 83 having a vibration table 82 on a substantially central upper surface, and an inside of the vibration generator 83. In the case of performing various types of hydraulic control, a cooling blower 85 for cooling the vibration generator 83, and a power amplifier 86 for supplying power to the vibration generator 83, the hydraulic source 84 and the cooling blower 85. It consists of and. Further, since the conventional vibration test apparatus 81 is configured by individually arranging the vibration generator 83, the hydraulic source 84, the cooling blower 85, and the power amplifier 86, the power amplifier 86 vibrates with the power cable 87. The generator 83, the cooling blower 85, and the hydraulic pressure source 84 are connected. The hydraulic source 84 and the vibration generator 83 are connected by a hydraulic hose 88, and the cooling blower 85 and the vibration generator 83 are connected by a duct hose 89.

  As is well known, the vibration generator 83 includes a horizontal vibration generating unit that generates vibration in the X direction on a horizontal plane, a horizontal vibration generating unit that generates vibration in the Y direction perpendicular to the X direction, and a Z direction A vertical vibration generator for generating vibration in the vertical direction is provided. A vibration test is performed in such a manner that three-axis vibration can be applied to the test object placed on the vibration table 82 in the three axes of the X, Y, and Z directions.

  In the above conventional example, the power amplifier 92 is installed on the rack from below, the power module 93 that sends power to the power generator 92, the vibration generator 83, and the controller 94 that sets various vibration conditions and creates control signals. Is configured. An operation panel unit 95 is integrally provided on the front surface of the controller 94. The power amplifier 86, the cooling blower 85, the vibration generator 83, the hydraulic power source 84, and the like are configured as independent units. Therefore, when the system is prepared for operation as the vibration test apparatus 81, the power cable 87, the hydraulic hose 88, and further the duct hose 89 of each unit are connected, and there is a problem that preparation for operation is complicated. .

  In each unit, the power supply unit 92 of the power amplifier 86 is arranged in the rack independently of the vibration generator 83 as described above, and the rack is provided as one power supply unit 92 according to its size. Occupies a volume within. Further, the power module 93 is disposed horizontally on the rack independently of the vibration generator 83. Further, the controller 94 is also arranged in the rack independently of the vibration generator 83. Therefore, as described above, it takes time to prepare for the operation of the system, and each unit such as the power amplifier 86, the vibration generator 83, the hydraulic source 84, and the cooling blower 85 is independent, so the installation area becomes large. It was a situation that could not be said to be space saving.

  The present invention has been made to solve the above-described conventional drawbacks, and an object of the present invention is to provide a vibration test apparatus that can save space by integrating many functions by using an empty space. There is to do. It is another object of the present invention to provide a vibration test apparatus that can immediately start operation or improve operability.

  Therefore, a vibration test apparatus according to claim 1 is a support frame supported at a distance from a base serving as a base, and a vibration generator disposed on the upper surface side of the support frame and vibrating the vibration table. Including at least one of a power supply unit for power supply, a power module for supplying driving power to the vibration generator, and a controller for controlling the vibration generator, below the support frame, Each of the above-mentioned constituent members is covered with a casing.

  The vibration test apparatus according to claim 2 is characterized in that an operation portion for operation is provided on the front surface of the casing.

  According to another aspect of the present invention, there is provided a vibration test apparatus comprising: a support frame supported on a base serving as a base at a distance; and a vibration generator disposed on an upper surface side of the support frame and configured to vibrate the vibration table. A power supply unit for supplying power, a power module that sends power to the vibration generator, and a controller for controlling the vibration generator are disposed below the support frame, and the components are mounted on the casing. It is characterized by covering.

  A vibration test apparatus according to a fourth aspect is characterized in that an operation portion for operation is provided on the front surface of the casing.

  The vibration test apparatus according to claim 5 is characterized in that the power supply unit is divided into a plurality of power supply units, and each power supply unit is arranged in an empty space on the base.

  The vibration test apparatus according to a sixth aspect is characterized in that the power module has a rectangular parallelepiped shape and is disposed vertically in an empty space on the base.

  The vibration test apparatus according to claim 7 is characterized in that the controller is configured by separating an operation unit and a main body unit including a control circuit, and the main body unit is disposed in an empty space on the base. It is said.

  The vibration test apparatus according to claim 8 includes a vibration generator that is supported by a base serving as a base and vibrates the vibration table, covers each component member with a casing, and has an operation part on the front surface of the casing. It is characterized by providing.

  According to the vibration test apparatus of the first aspect, since at least one of the power supply unit, the power module, and the controller is disposed below the support frame, an empty space below the support frame and the vibration generator is provided. It can be used to save space.

  According to the vibration test apparatus of the second aspect, since the operation portion is provided on the front surface of the casing, unlike the conventional case where the operation portion is provided separately from the vibration generator, operations such as setting of various vibration conditions are performed. Can be improved.

  According to the vibration test apparatus of the third aspect, since the power supply unit, the power module, and the controller are respectively arranged below the support frame, space is saved by using the empty space below the support frame and the vibration generator. Can be realized. In addition, each member necessary as a vibration test device is integrally arranged in the casing using an empty space, so that it becomes a so-called all-in-one type vibration generator, and a power cable connected to an AC power supply as a system operation preparation Operation can be performed immediately by preparing only one air hose connected to the cooling blower and one air hose.

  According to the vibration test apparatus of the fourth aspect, since the operation unit is provided on the front surface of the casing, unlike the conventional case where the operation unit is provided separately from the vibration generator, operations such as setting of various vibration conditions are performed. Can be improved.

  According to the vibration test apparatus of the fifth aspect, the power supply unit is divided into a plurality of power supply units, and each power supply unit is arranged in an empty space on the base. The space is saved by effectively using.

  According to the vibration test apparatus of the sixth aspect, the power module has a rectangular parallelepiped shape, and is installed in an empty space on the base in a vertical position, so that the installation area can be reduced as compared with the case of horizontal installation, and the empty space The space is saved by effectively using.

  According to the vibration test apparatus of the seventh aspect, the controller is separated from the operation panel portion and the main body portion including the control circuit, and the separated main body portion is arranged in an empty space on the base. As a result, space is saved by using the free space on the base.

  According to the vibration test apparatus of the eighth aspect, since the operation unit is provided on the front surface of the casing covering each component member, unlike the conventional case where the operation unit is provided separately from the vibration generator, The operability such as setting various vibration conditions can be improved.

  Next, specific embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view of an external appearance of a hydrostatic bearing type vibration test apparatus 1, and FIG. 2 is a cross-sectional view in which an internal mechanism is omitted. This vibration test apparatus 1 is an electrodynamic vibration test apparatus in which components are integrally mounted and disposed in a base 2 and a casing 3 constituting an outer shell. The table 4a of the vibration table 4 for performing a vibration test is placed, and an operation panel section 5 for operation for setting each vibration condition and performing the test is provided in the upper part of the front.

  As shown in FIGS. 2 and 3, four support columns 6 are erected on the upper surface of the base 2, and a support frame 10 is disposed on the upper surface of the support column 6 via a vibration isolation mechanism 7. Support pieces 11 bent at four positions of the support frame 10 are arranged on the vibration isolation mechanism 7, and the support frame 10 is arranged in a floating state with respect to the base 2. In addition, concave arrangement portions 12 and 13 for arranging vibration generators that vibrate in the X direction and the Y direction are provided on the front, rear, left, and right sides of the support frame 10. Horizontal vibration generators 21 including a pair of horizontal vibration generators 21a and 21b that perform vibration in the X direction are arranged as shown in FIGS. 4, 5, and 8, respectively. Further, the horizontal vibration generators 22 including a pair of horizontal vibration generators 22a and 22b that perform vibration in the Y direction are arranged in the arrangement parts 13 before and after the support frame 10, respectively. Further, a vertical vibration generator 23 composed of two vertical vibration generators 23 a and 23 b that vibrate in the Z direction is disposed in a cavity formed in the center of the support frame 10. A substantially triangular plate-like bracket 14 is provided on the lower surface of the placement portions 12 and 13 to support the weight of the horizontal vibration generating portions 21 and 22 in the X and Y directions.

  Here, the horizontal vibration generators 21 and 22 are each composed of a pair of horizontal vibration generators 21a, 21b, 22a and 22b, and two units are arranged on the front, rear, left and right, respectively. Is also arranged in series in the vertical direction with two vertical vibration generators 23a and 23b. The two horizontal vibration generators 21a and 21b on the left and right sides, the two horizontal vibration generators 22a and 22b on the front and rear sides, and the two vertical vibration generators 23a and 23b on the upper and lower sides are designed to have the same structure. That is, unitization is achieved using the same vibration generating unit.

  The vibration table 4 is disposed on the upper surface of the vertical vibration generating unit 23 between the horizontal vibration generating unit 21 in the X direction and the horizontal vibration generating unit 22 in the Y direction. The vibration table 4 is vibrated in the X direction by the horizontal vibration generator 21, the vibration table 4 is vibrated in the Y direction by the other horizontal vibration generator 22, and the vibration table 4 is moved in the Z direction by the vertical vibration generator 23. Excited. Of course, the vibration table 4 is vibrated only in the X direction, only in the Y direction, only in the Z direction, or any two-dimensional or three-dimensional.

  Next, one horizontal vibration generator 21a of the horizontal vibration generator 21 in the X direction shown in FIGS. 5 and 8 will be described. The other horizontal vibration generator 21a and a pair of horizontal vibration generators 22 in the Y direction are described. Since the horizontal vibration generators 22a and 22b have the same configuration, description of the horizontal vibration generator 22 in the Y direction is omitted. As shown in FIG. 5 and FIG. 6 showing an enlarged cross-sectional view of the main part of the horizontal vibration generator 21a, a substantially circumferential groove is formed inside the outer cylindrical body 26 constituting the outer shell of the horizontal vibration generator 21a. 27, an inner cylinder portion 28 is provided, and a permanent magnet 25 is disposed on the inner peripheral surface on the distal end side of the outer cylinder body 26. In addition, a circumferential side portion 41 of a movable body 40 having a substantially U-shaped cross section for vibrating the vibration table 4 is loosely fitted in the groove 27 so as to freely reciprocate. A drive coil 29 is wound around the outer peripheral surface of 41. A bearing portion 30 is provided at the center portion of the inner cylinder body 28. An outer cylinder 31 of the bearing portion 30 is fixed to an inner peripheral surface of the inner cylinder body 28, and a shaft 32 which is a shaft of the bearing section 30 has a ball. It is slidable in the axial direction. The tip of the shaft 32 is connected and fixed to the central portion of the inner surface of the movable body 40, and the peripheral side portion 41 of the movable body 40 is slidably inserted into the groove 27.

  An alternating current as a control signal having an arbitrary frequency is supplied to the drive coil 29 of the horizontal vibration generator 21a to generate a magnetic circuit and reciprocate the movable body 40 at a predetermined frequency by the magnetic force generated by the magnetic flux. It is like that. By changing the directions of the magnetic fluxes of the left and right horizontal vibration generators 21a and 21b, the movable bodies 40 are driven in the same direction, whereby the vibration table 4 is reciprocated at a predetermined frequency. Further, bearings 43 are provided on the sides of the vibration table 4, respectively, and oil is circulated from the hydraulic source 53 to be described later to the bearings 43 so that the side surfaces of the bearing 43 and the horizontal vibration generators 21 a and 21 b in the X direction ( The Y-direction horizontal vibration generators 22a and 22b) have an oil sliding surface that slides with an oil film of oil on the front end surface of the movable body 40. As a result, the vibration table 4 and the movable body 40 of the horizontal vibration generators 21 and 22 are in smooth and slidable contact with each other, and can also be slid in the vertical direction by the vertical vibration generator 23. Are in contact.

  Next, the configuration of the two vertical vibration generators 23a and 23b constituting the vertical vibration generator 23 is also the same as that of the horizontal vibration generator 21a described above. explain. As shown in FIG. 5, the upper vertical vibration generator 23a is disposed with the movable body 40 facing up, and the lower vertical vibration generator 23b is disposed with the movable body 40 facing down. The movable body 40 of the lower vertical vibration generator 23b is placed on an air spring 45 provided on the bottom 44 of the support frame 10. Further, the shafts 32a of the bearing portions 30 and 30 of the upper and lower vertical vibration generators 23a and 23b are formed to be long, and the upper and lower bearing portions 30 are connected to each other. This is a shaft as the vertical vibration generator 23 composed of the vertical vibration generators 23a and 23b. The upper end of the shaft 32a is connected and fixed to the movable body 40 of the upper vertical vibration generator 23a, and the lower end of the shaft 32a is connected and fixed to the movable body 40 of the lower vertical vibration generator 23b.

  The vertical vibration generator 23 is fixed on the step 46 of the support frame 10 via a support 47, and a partition plate 48 is provided between the upper and lower vertical vibration generators 23a and 23b as shown in FIG. Is intervening. In the partition plate 48, a portion corresponding to the outer cylindrical body 26 and the inner cylindrical portion 28 is configured by a magnetic body portion 48 a, a portion corresponding to the groove 27 is configured by a nonmagnetic body portion 48 b, and the nonmagnetic body portion. A hole 49 communicating with the upper and lower grooves 27 is formed in 48b. It is to be noted that the drive coils 29 are prevented from interfering with each other by the non-magnetic body portion 48 b of the partition plate 48, and the oil film forming oil used in the bearing 43 is allowed to flow through the groove 27 and the hole 49. Thus, the drive coil 29 is cooled. The upper and lower portions of the upper and lower grooves 27 are opened, that is, the upper and lower portions of the groove 27 penetrate the outside.

  Further, since the upper and lower vertical vibration generators 23a and 23b are arranged in opposite directions, the directions of magnetic fluxes generated by the magnetic circuits in the drive coils 29 of the upper and lower vertical vibration generators 23a and 23b are opposite to each other. The two independent magnetic circuits by the upper and lower vertical vibration generators 23a and 23b are combined in series. Therefore, when the two vertical vibration generators 23a and 23b are driven at a predetermined frequency, the upper and lower movable bodies 40 are driven in the same direction to reciprocate. Accordingly, two independent magnetic circuits by the upper and lower vertical vibration generators 23a and 23b are combined in series, and the two vertical vibration generators 23a and 23b are compared with the single vertical vibration generator 23a (23b). Thus, it is possible to generate a double excitation force. Accordingly, the two vertical vibration generators 23a and 23b can generate the same excitation force as the horizontal vibration generators 21 and 22 provided at the front, rear, left and right, respectively, and can vibrate the vibration table 4.

  The vertical vibration generators 23a and 23b in the upper and lower units are the same except for the configuration of the horizontal vibration generators 21a, 21b, 22a, and 22b of the horizontal vibration generators 21 and 22 except for the portion of the shaft 32a. Therefore, the same design can be made as the individual vibration generator, so that the vibration generator can be unitized, and cost reduction and maintenance can be facilitated.

  As described above, the front, rear, left and right horizontal vibration generators 21 and 22 are disposed on the upper surface of the support frame 10, and the vertical vibration generator 23 is disposed inside the support frame 10. And each member (unit) which comprises the vibration test apparatus 1 using the empty space of the space around the support frame 10 is arrange | positioned as shown below.

  8 to 14 show the internal structure of the vibration test apparatus 1 with the casing 3 omitted. FIG. 8 is a plan view of the vibration test apparatus 1, FIG. 9 is a front view, FIG. 10 is a rear view, and FIG. 11 shows a right side view, and FIG. 12 shows a left side view. 13 shows a perspective view of the vibration test apparatus 1 from the front, and FIG. 14 shows a perspective view from the back.

  8 to 14, the power supply unit 51 for supplying power to the entire vibration test apparatus 1 is not composed of one unit, but is composed of a plurality of power supply units 51 a to 51 d. The power supply units 51a and 51b are arranged on the front side of the base 2, the power supply unit 51c is arranged behind the power supply unit 51a, and the power supply unit 51d is arranged behind the power supply unit 51b. As described above, the plurality of power supply units 51a to 51d are configured and divided into the empty space of the base 2, so that the installation area of one power supply unit 51a to 51d is reduced and the empty space is effectively used. Space saving is realized by using.

  On the rear right side of the base 2, a plurality of power modules 52 that receive power from the power source 51 and send electric power (control AC signals) to the horizontal vibration generators 21 and 22 and the vertical vibration generator 23. Is arranged. The rectangular parallelepiped power module 52 is formed at a height that enters an empty space below the horizontal vibration generating unit 21, and is arranged not vertically but vertically. If the power module 52 is placed horizontally, the installation area becomes very large. However, since the power module 52 is arranged vertically as in the present invention, the installation area can be very narrow and space saving can be realized. doing.

  Further, on the left side of the base 2, a main body portion 55 is disposed which is composed of a control circuit that constitutes a controller with the operation panel portion 5. If the operation panel unit 5 and the main body unit 55 are integrated with each other and the controller is disposed on any of the bases 2, the empty space cannot be used effectively. Therefore, in the present invention, the operation panel unit 5 and the main body unit 55 are separated. The operation panel unit 5 is arranged on the front surface of the casing 3 of the vibration test apparatus 1, and the main body unit 55 is arranged in an empty space on the left side of the base 2 to realize space saving.

  In addition, a hydraulic pressure source 53 that is an oil supply source for hydraulic control is disposed on the left side of the rear portion of the base 2, and a cooling blower 54 for cooling the entire apparatus is disposed in the center of the rear portion of the base 2. ing.

  Thus, space saving is realized by arranging the power supply unit 51, the power module 52, and the main body unit 55 in the empty space below the horizontal vibration generating units 21 and 22. Moreover, it is a so-called all-in-one type in which all members necessary for the vibration test apparatus 1 are integrally arranged in the casing 3 by utilizing an empty space. And since the function as the vibration test apparatus 1 is integrated, only one power cable to be connected to the AC power source and one air hose to be connected to the cooling blower 54 are prepared (connected) as a system operation preparation. And you can drive immediately. In addition, since the operation panel unit 5 is provided in the upper part of the front surface of the casing 3, the operability such as setting of various vibration tests can be improved, unlike the case where the operation panel unit 5 is provided separately from the conventional vibration generator. it can.

  FIG. 15 shows a view of cooling the drive coils 29 of the horizontal vibration generating units 21 and 22 and the vertical vibration generating unit 23, and a cooling fan 58 is provided on the outer surface of the horizontal vibration generating units 21 and 22. Yes. The fan 58 is provided in a place communicating with the air passage 59, and the air passage 59 and the groove 27 in which the drive coils 29 of the horizontal vibration generating portions 21 and 22 are disposed communicate with each other to rotate the fan 58. By driving, the drive coil 29 is cooled via the air passage 59 and the groove 27.

On the other hand, in the vertical vibration generating unit 23, a fan is conventionally provided for cooling as in the case of the horizontal vibration generating units 21 and 22. However, in the present invention, the vibration is not provided separately. The oil used for the sliding surface of the bearing 43 of the base 4 is used to cool the drive coil 29 of the vertical vibration generating unit 23. That is, as shown in FIG. 15, the oil flowing to the bearing 43 of the vibration table 4 slowly flows down along the surface and the inside of the bearing 43, and the oil used for forming the oil film or the excess oil As shown by the arrows in the figure, the bearings 43 are transmitted from the bearings 43 to the lower surface of the vibration table 4 and further flow down into the movable body 40 or directly into the grooves 27 of the vertical vibration generating portion 23. Since the grooves 27 of the upper and lower vertical vibration generating portions 23 communicate with each other, the oil flows down into the grooves 27, and further, the oil contacts and cools the drive coils 29 arranged above and below the grooves 27. run down. The oil that has flowed down from the lower end of the groove 27 of the vertical vibration generator 23 is recovered to the hydraulic power source 53 through the hole 60 in the bottom 44 of the support frame 10. The oil collected by the hydraulic power source 53 is circulated and supplied to the bearing 43 of the vibration table 4 again. A guide member 61 for guiding the oil to the vertical vibration generating unit 23 side is provided below the bearing 43 of the vibration table 4 so that the oil does not diffuse around.

  In this way, the oil after being used for forming the oil film of the bearing 43 and the surplus oil are transmitted to the place where heat is generated by the drive coil 29 of the vertical vibration generating unit 23, and cooling is performed. Cost can be reduced as unnecessary. Of course, the heat generation amount of the drive coil 29 is designed so that the heat generation of the drive coil 29 is possible by oil cooling.

  Further, the horizontal vibration generating units 21 and 22 and the vertical vibration generating unit 23 other than heat generation other than the heat generation of the horizontal vibration generating units 21 and 22 and the vertical vibration generating unit 23, the power supply unit 51, the power module 52, and the hydraulic pressure are generated. The source 53, the control main body 55, and the like are cooled by a single cooling blower 54. That is, since each component is covered with the casing 3, the cooling can be performed by only one cooling blower 54.

  FIG. 16 is a diagram showing a positional relationship between the horizontal vibration shaft 63 (the shaft 32 of the bearing portion 30) of the horizontal vibration generating portions 21 and 22 and the vibration isolation mechanism portion 7. The anti-vibration mechanism unit 7 made of a cushioning material such as a spring body is disposed on the upper surface of the support column 6 as described above, and the horizontal vibration generators 21a and 21b (22a and 22b) are further provided on the anti-vibration mechanism unit 7. A support piece 11 of the support frame 10 is disposed. The vibration isolation mechanism 7 is disposed above the horizontal excitation shaft 63 of the pair of horizontal vibration generators 21a and 21b (22a and 22b).

  When the vibration table 4 is vibrated by driving the horizontal vibration generators 21a and 21b, the vibration isolation mechanism unit 7 is disposed above the horizontal vibration shaft 63 of the horizontal vibration generators 21a and 21b, so that vibration is generated. The vibration amplitude of the horizontal vibration generators 21a and 21b due to the influence of the vibration isolating mechanism portion 7 to be absorbed can be suppressed to be small, so that the lateral vibration of the vibration test apparatus 1 as a whole can be reduced (see arrow a in FIG. 9). Rotational vibration can be reduced (see arrow b). Therefore, the vibration test using the vibration table 4 can be performed more accurately.

  Further, even if the horizontal vibration generating units 21 and 22 are simultaneously driven in the X direction and the Y direction to vibrate the vibration table 4, the vibration amplitude of the horizontal vibration generating units 21 and 22 due to the influence of the vibration isolating mechanism unit 7 is kept small. be able to. As a result, the lateral vibration of the entire apparatus can be reduced, and the amplitude of the rotational vibration can be kept small, so that the vibration test can be performed more accurately.

  Further, even if the three-dimensional vibrations of the vertical vibration generating unit 23 in the Z direction alone or the horizontal vibration generating units 21 and 22 in the X and Y directions and the vertical vibration generating unit 23 are generated, the anti-vibration mechanism unit 7 The vibration amplitude of the vertical vibration generating unit 23 or the vertical vibration generating unit 23 and the horizontal vibration generating units 21 and 22 due to the influence of the above can be suppressed small. As a result, the lateral vibration of the entire apparatus can be reduced, and the amplitude of the rotational vibration can be kept small, so that the vibration test can be performed more accurately.

It is a perspective view of the appearance of a vibration test device in an embodiment of the present invention. It is sectional drawing which abbreviate | omitted the internal mechanism in this Embodiment. It is a perspective view of the support frame in embodiment of this invention. It is a front view of the state which mounted the horizontal vibration generating part in the support frame in embodiment of this invention. It is sectional drawing of the state which mounted the horizontal vibration generation part and the vertical vibration generation part in the support frame in embodiment of this invention. It is a principal part expanded sectional view of the horizontal vibration generator in embodiment of this invention. It is a principal part expanded sectional view of the vertical vibration generation | occurrence | production part in embodiment of this invention. It is a top view which shows the internal structure of the vibration testing apparatus in embodiment of this invention. It is a front view which shows the internal structure of the vibration test apparatus in embodiment of this invention. It is a rear view which shows the internal structure of the vibration test apparatus in embodiment of this invention. It is a right view which shows the internal structure of the vibration test apparatus in embodiment of this invention. It is a left view which shows the internal structure of the vibration test apparatus in embodiment of this invention. It is the perspective view seen from the front which shows the internal structure of the vibration testing apparatus in embodiment of this invention. It is the perspective view seen from the back which shows the internal structure of the vibration testing apparatus in embodiment of this invention. It is explanatory drawing in the case of cooling the drive coil of the vertical vibration generation part in embodiment of this invention with oil. It is explanatory drawing which shows the relationship between the anti-vibration mechanism part of the vibration test apparatus in embodiment of this invention, and the horizontal excitation shaft of a horizontal vibration generation part. It is a block diagram of the vibration test apparatus of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vibration test apparatus 2 Base 3 Casing 4 Shaking table 5 Operation panel part 10 Support frame 21 Horizontal vibration generating part 22 Horizontal vibration generating part 51 Power supply part 52 Power module 55 Main body part

Claims (8)

  A support frame (10) supported at a distance from a base (2) serving as a base, and a vibration generator disposed on the upper surface side of the support frame (10) and vibrating the vibration table (4) And supporting at least one of a power supply unit (51) for power supply, a power module (52) for supplying driving power to the vibration generator, and a controller for controlling the vibration generator A vibration test apparatus, which is disposed below the frame (10) and covers each of the constituent members with a casing (3).   2. The vibration test apparatus according to claim 1, wherein an operation portion (5) for operation is provided on the front surface of the casing (3).   A support frame (10) supported at a distance from a base (2) serving as a base, and a vibration generator disposed on the upper surface side of the support frame (10) and vibrating the vibration table (4) A power supply unit (51) for supplying power, a power module (52) for supplying power to the vibration generator, and a controller for controlling the vibration generator, below the support frame (10). A vibration testing apparatus, wherein the vibration testing apparatus is arranged and covers each of the constituent members with a casing (3).   4. The vibration test apparatus according to claim 3, wherein an operation portion (5) for operation is provided on the front surface of the casing (3).   The power supply unit (51) is divided into a plurality of power supply units (51a) to (51d), and each power supply unit (51a) to (51d) is disposed in an empty space on the base (2). The vibration test apparatus according to claim 1, wherein:   The vibration test apparatus according to any one of claims 1 to 4, wherein the power module (52) has a rectangular parallelepiped shape and is disposed vertically in an empty space on the base (2).   The controller is configured by separating an operation unit (5) and a main body (55) including a control circuit, and the main body (55) is arranged in an empty space on the base (2). The vibration test apparatus according to any one of claims 1 to 4, wherein   A vibration generator is provided that is supported by a base (2) as a base and vibrates the vibration table (4). Each component is covered with a casing, and an operation crop is provided on the front surface of the casing (3). (5) A vibration test apparatus characterized by being provided.