JP3215004U - Shake prevention link mechanism added to vibration isolator for large industrial machinery - Google Patents

Abstract

[PROBLEMS] To provide a vibration prevention link mechanism that balances the vertical vibration displacement of two vibration isolators caused by a large shock vibration caused by the operation of a large industrial machine based on a simple mechanism to prevent the vibration of a large industrial machine. To do. An anti-sway link mechanism 30 is added to two spaced-apart parallel anti-vibration devices 1 having a vertical motion anti-vibration function for large industrial machines, each of which is attached to the two anti-vibration devices. The two vertical movement link units 31A provided with the upper substrate 32b and the lower substrate 32a, and the intermediate links 33 arranged in the horizontal direction with both ends facing each intermediate portion of the two vertical movement link units. And an upper link piece 39b that protrudes from the upper substrate toward the intermediate link in a vertically moving link unit, and a lower link piece 39a that protrudes from the lower substrate toward the intermediate link. Are connected to one end and the other end of the intermediate link so as to be rotatable, and a parallel link mechanism portion including an intermediate link and exhibiting a vertically symmetrical shape is configured. [Selection] Figure 2

Description

  The present invention balances the vertical vibration displacement of two vibration isolators due to a large shock vibration caused by the operation of a large industrial machine based on a simple mechanism, for example, for a large industrial machine such as a large press machine. The present invention relates to a vibration prevention link mechanism added to the apparatus.

  2. Description of the Related Art Conventionally, in a large press machine or the like, a vibration isolator is generally used in order to suppress a large impact vibration in the vertical direction that occurs during operation.

  In Patent Document 1, as a technology related to the present invention, in a press machine in which tie rods are integrally fixed on both sides of the front surfaces of an upper frame and a lower frame constituting a C-shaped frame, a protection is provided inside the lower ends of the tie rods on both sides. A leg plate having a vibration device is detachably provided, and a rear vibration isolation device is detachably provided at a position corresponding to the vibration isolation device on both sides of the bottom rear portion of the C-shaped frame. A press machine characterized in that a large distance from the center of gravity of the press machine is provided.

  However, including the technology of the vibration isolator in the press machine of Patent Document 1, it is added to a plurality of vibration isolators arranged as a vibration isolating measure for a large industrial machine such as a large press machine. At present, there is no anti-sway link mechanism that balances the vertical vibration displacement of a plurality of anti-vibration devices at the time of occurrence of impact vibration, thereby preventing the shake of large industrial machines.

Japanese Patent No. 3893182

  The present invention has been developed in view of the above-mentioned situation in the past, and the vertical vibration displacement of a plurality of vibration isolators accompanying large impact vibration due to the operation of a large industrial machine is balanced on the basis of a simple mechanism. It is an object of the present invention to provide an anti-swaying link mechanism that is added to a vibration isolator for a large-scale industrial machine that prevents the industrial machine from shaking.

  An anti-swaying link mechanism according to the present invention is a vibration isolator for a plurality of large-sized industrial machines arranged in parallel and spaced apart from each other and having an anti-vibration function for large industrial machines that move vertically in the vertical direction and generate large impact vibrations. And a plurality of vertically moving link units each provided with an upper substrate and a lower substrate, and the plurality of vertically moving links. A plurality of upper link pieces and a lower substrate that project from the upper substrate in each of the vertically moving link units so as to be rotatable toward the intermediate link. A plurality of lower link pieces projecting toward the intermediate link so as to be pivotable from one end, the other end, and a predetermined position in the length direction of the intermediate link are pivotally connected to the intermediate link. Pair up and down including links A parallel link mechanism portion having a shape is configured, and vertical vibration displacements of the plurality of vibration isolators due to a large impact vibration due to the operation of the large industrial machine are detected by a plurality of vertical link units in the parallel link mechanism portion. The most important feature is that the large industrial machine is configured to be balanced by interlocking up and down movement to prevent shaking of the large industrial machine.

  According to the first aspect of the present invention, the vertical vibration displacement of the plurality of vibration isolators due to the large impact vibration caused by the operation of the large industrial machine is caused by the interlocking vertical movement of the plurality of vertical link units in the parallel link mechanism. Therefore, it is possible to realize and provide a vibration prevention link mechanism that is added to a vibration isolator for a large industrial machine, which can be balanced and accurately prevent the large industrial machine from shaking.

  According to the second aspect of the invention, the vertical vibration displacement of the two vibration isolators due to the large impact vibration caused by the operation of the large industrial machine is balanced by the interlocking vertical movement of the pair of vertical link units in the parallel link mechanism. Therefore, it is possible to realize and provide a vibration preventing link mechanism added to a vibration isolator for a large industrial machine that can accurately prevent the large industrial machine from shaking.

  According to the third aspect of the present invention, the vertical vibration displacement of the two vibration isolators due to the large impact vibration caused by the operation of the large industrial machine is applied to the two vertical movement links including the connecting plate in the parallel link mechanism portion. It is possible to realize and provide an anti-swaying link mechanism added to a vibration isolator for a large industrial machine that can be accurately balanced by the interlocking vertical movement of the units and can accurately prevent the large industrial machine from shaking.

  According to the invention described in claim 4, since the vibration isolator is a new or existing vibration isolator, it is added to a vibration isolator for a large-scale industrial machine capable of diversifying the use symmetrical places. An anti-sway link mechanism can be realized and provided.

  According to the fifth aspect of the present invention, the parallel link mechanism is attached to the short sides or the long sides of the vibration isolator having a substantially parallelepiped shape that is arranged in parallel with each other. Therefore, it is possible to realize and provide a vibration preventing link mechanism added to a vibration isolator for a large industrial machine.

FIG. 1 is a schematic plan view of a vibration preventing link mechanism added to a vibration isolator for a large industrial machine according to Embodiment 1 of the present invention. FIG. 2 is a schematic side view of a form in which a part of a vibration preventing link mechanism added to the vibration isolator for a large industrial machine according to the first embodiment is taken as a cross section. FIG. 3 is a schematic plan view showing a vibration isolator to which a vibration preventing link mechanism according to the first embodiment is attached. FIG. 4 is a schematic front view showing only the vibration preventing link mechanism according to the first embodiment. FIG. 5 is a schematic plan view of a vibration preventing link mechanism added to a vibration isolator for a large industrial machine according to Embodiment 2 of the present invention. FIG. 6 is a schematic side view of a form in which a part of a vibration preventing link mechanism added to the vibration isolator for a large industrial machine according to the second embodiment is taken as a cross section. FIG. 7 is a schematic front view showing only the vibration preventing link mechanism according to the second embodiment.

  The present invention balances the vertical vibration displacement of a plurality of (for example, two) vibration isolators accompanying a large shock vibration caused by the operation of a large industrial machine based on a simple mechanism, thereby realizing the prevention of shaking of the large industrial machine. The purpose of realizing and providing a vibration prevention link mechanism added to a vibration isolator for a large industrial machine is a separation having a vertical vibration isolating function for a large industrial machine that generates a large impact vibration by moving vertically in the vertical direction. The anti-sway link mechanism is added to the two vibration isolators for large industrial machines arranged in parallel, and is attached to each of the two anti-vibration devices, and includes an upper substrate and a lower substrate. Each of the two vertical movement link units, and an intermediate link disposed in the horizontal direction with both ends facing each intermediate part of the two vertical movement link units, from the upper substrate in each vertical movement link unit Turnable intermediate An upper link piece projecting toward the link and a lower link piece projecting toward the intermediate link so as to be rotatable from the lower substrate are rotatably connected to one end and the other end of the intermediate link, respectively. A parallel link mechanism portion having a vertically symmetric shape including the intermediate link is configured, and the vertical vibration displacement of the two vibration isolators due to a large impact vibration due to the operation of the large industrial machine is changed in the parallel link mechanism portion. It was realized by a structure that balances by the interlocking vertical movement of two vertical movement link units and prevents the large industrial machine from shaking.

  Hereinafter, with reference to the drawings, a vibration preventing link mechanism added to a vibration isolator for a large industrial machine according to an embodiment of the present invention will be described in detail.

Example 1
The vibration prevention link mechanism 30 added to the vibration isolator 1 for a large industrial machine according to the first embodiment of the present invention moves up and down in the vertical direction, for example, as shown in FIGS. It is added in a state where it is attached to a plurality of, for example, two anti-vibration devices 1 and 1, which are spaced apart from each other and have a vertical motion anti-vibration function for a large industrial machine 101.

  Below, the said vibration isolator 1 is demonstrated first.

  As shown in FIGS. 1, 2, and 3, the vibration isolator 1 includes a substantially rectangular plate-like base plate 11 that is fixedly installed on a base portion 102 of an installation location of a press machine or the like, and a base plate 11 on the base plate 11. A flat disc spring body made of stainless steel provided with a laminated rubber body 14 which is a vibration reducing material and provided with two circular holes 13 for two disc spring body guide members 18 which will be described later. A receiving member 12, a required number of shear bolts 15 that pass through the disc spring body receiving material 12 and the laminated rubber body 14 and are screwed to the base plate 11, and the two circular shapes on the disc spring body receiving material 12. Two disc spring bodies 16 having a substantially cylindrical shape as a whole, in which an arbitrary number of disc springs 16a arranged concentrically with the hole 13 are combined in parallel, and two disc-shaped bodies installed on the two disc spring bodies 16 Plate spring body holding plate 17 and front High-frequency heat-treated with the disc spring body 16 passing through the disc spring body 16 and having the lower end joined to the upper surface of the laminated rubber body 14 through the circular hole 13 and the upper end facing the inner peripheral portion of the disc spring body restraining plate 17 A flat, substantially square plate that is installed on the two disc spring body restraining plates 17 and fixed to the respective disc spring body restraining plates 17 by bolts 19 and is mounted on the two disc spring body restraining plates 17. Vibration receiving body 20, a mounting screw unit 21 for mounting the vibration isolator 1 to a movable part of a press machine (not shown) provided in a state of protruding upward from a substantially central portion of the vibration receiving body 20, Attenuation formed in the shape of a disc having a thickness of 30 mm, for example, disposed between the upper surface of the two disc spring body guide members 18 and the lower surface of the vibration receiving body 20 (arranged in series with the disc spring body 16). With material 22 A decorative cover made of stainless steel that has a surface that is made of stainless steel and is screwed to each side of the vibration receiver 20 from a side corresponding to the lower end of the disc spring body 16 from each side of the substantially rectangular plate-shaped vibration receiver 20. 23.

  Further, as shown in FIG. 1, the vibration isolator 1 according to the first embodiment is provided with a jack formed by recessing in a substantially semicircular shape toward the inside in both the base plate 11 and the vibration receiver 20. A space 24 is provided.

  The laminated rubber body 14 as the vibration reducing material has a laminated structure of a total of 7 layers using, for example, four rubber plates made of a highly oil-resistant material having a thickness of 1 mm and three iron plates having a thickness of 2.3 mm.

  The laminated rubber body 14 has a large vertical rigidity and can bear a large load, and is mainly installed to reduce high-frequency vibration included in the impact force when the press machine is operated.

  The shear bolt 15 is designed to be sheared and destroyed when the seismic load of a certain size or more is applied, and to separate the vibration isolator 1 from the mounting location, and has a function of preventing the mechanical element from overturning when the seismic load is applied. doing.

  In the first embodiment, the disc spring body 16 is configured by combining a total of six disc springs 16 a of the same standard in a concentric arrangement, and this is configured in a double arrangement on the disc spring body receiving material 12.

  Various arrangement modes of the disc springs 16a can be selected. In the first embodiment, three modes are employed in which the upper stage is in parallel with two downwards, the middle stage has two opposing parallel, and the lower stage has two upwards in parallel.

  Here, the two-sided downward parallel arrangement refers to an aspect in which the central portion of the two-layered disc springs 16a is located below the peripheral portion, and the two-sided parallel arrangement refers to the central portion of the two-layered disc springs 16a. Means that the center part of the two stacked disc springs 16a is located above the peripheral part.

  Further, in the first embodiment, the angular seating surface of the disc spring 16a corresponds to the use state, and an amount of 10% to 30% of the plate thickness is removed by polishing, whereby the disc spring 16a is combined. Thus, the stability of the disc spring body 16 is ensured, that is, the stability against long-term movement is ensured.

  As this type of anti-vibration and shock-absorbing spring element, various elements such as a plate spring, a coil spring, and anti-vibration rubber can be considered in addition to the disc spring 16a as in the first embodiment. 1, the combination of the disc springs 16a is adopted in consideration of the stability of the press machine after vibration isolation.

  The disc spring body 16 is characterized in that it can support a large load in a small space, has a large degree of freedom in the combination of an arbitrary number of disc springs 16a, can arbitrarily set a burden load and a spring constant, and can adjust friction friction force. Because it is possible, friction damping can be ensured and at the same time easy adjustment can be made, and since the disc spring body 16 expands and contracts only in the vertical direction, it is excellent in maintaining the stability of the movable part of the press machine operating in one axis direction, and in the vibration proofing effect It can be mentioned that the natural frequency to be influenced can be set arbitrarily depending on the shape, combination and quantity of the disc springs 16a in a small space.

  Although not shown in the drawing, the disc spring body guide member 18 restrains longitudinal and lateral displacements (such as rocking) that adversely affect workability other than the vertical direction in consideration of safety during operation of the press machine. It has a function.

  The clearance between the outer circumference of the disc spring body guide member 18 and the inner circumference of the disc spring body 16 is managed in accordance with the DIN standard, and the disc spring body guide member 18 is harder than the disc spring 16a. The specifications are that of induction heat treatment.

  The mounting screw unit 21 is fixedly supported at the lower end by the vibration receiving body 20, and a required number of mounting nuts 21 b are screwed into a screw portion 21 a protruding upward from a substantially central portion of the vibration receiving body 20. It is configured.

  The damping member 22 has rigidity smaller than the disc spring body 16 and is made of, for example, urethane rubber having a large damping effect even with a small displacement, and has excellent characteristics such as oil resistance and heat resistance, and rigidity. The viscosity can be freely selected.

  Furthermore, at the time of assembly of the vibration isolator 1 of the first embodiment, the specification is such that a rust preventive oil application process is performed at a required location and maintenance is not required.

  Next, the shaking prevention link mechanism 30 according to the first embodiment will be described in detail.

  As shown in FIGS. 1 and 4, the anti-swaying link mechanism 30 faces a both ends of the intermediate link 33 arranged in the horizontal direction, and has a pair of vertical movement link units 31A that move vertically in the same structure. , 31B is arranged.

  The one vertical movement link unit 31A has a lower substrate 32a fixedly installed on the base portion 102 and an upper substrate 32b above the lower substrate 32a.

  The lower substrate 32 a is attached to the base plate 11, and the upper substrate 32 b is attached to the vibration receiver 20, although not described in detail, by known means (bolts, nuts, etc.).

  Then, a bearing piece support plate 35a is fixed to the upper surface of the lower substrate 32a using bolts 34, and a countersunk screw 36 is inserted into a countersink hole provided in the bearing piece support plate 35a. A bearing piece 37a having a shaft hole disposed on the bearing piece support plate 35a is fixed by screwing, and a base end side of the lower link piece 39a is rotatably supported by a lower shaft 38a inserted through the shaft hole of the bearing piece 37a. The projecting end side of the lower link piece 39a is configured to project obliquely upward (for example, 45 degrees upward with respect to the horizontal plane) toward the intermediate link 33 side.

  Further, a bearing piece support plate 35b is fixed to the lower surface of the upper substrate 32b using bolts 34, and a countersunk screw 36 is inserted into a countersink hole provided in the bearing piece support plate 35b. A bearing piece 37b having a shaft hole disposed on the lower surface of the piece support plate 35b is screwed and fixed, and a base end side of the upper link piece 39b is rotatably supported by an upper shaft 38b inserted into the shaft hole of the bearing piece 37b. The protruding end side of the upper link piece 39b protrudes obliquely downward (for example, 45 degrees downward with respect to the horizontal plane) toward the intermediate link 33 side.

  The other vertical link unit 31B is also located on the other end side of the intermediate link 33 and has the same configuration as the one vertical link unit 31A.

  The intermediate shaft 40 is inserted into the shaft holes provided on the protruding end sides of the lower link piece 39a and the upper link piece 39b in the one vertical movement link unit 31A and the shaft hole provided on the one end side of the intermediate link 33. In the other vertical link unit 31B, the lower link piece 39a and the upper link piece 39b are provided on the respective projecting end sides of the other vertical link unit 31B and on one end side of the intermediate link 33. The intermediate shaft 40 is fitted into the provided shaft hole and is rotatably supported.

  The rotation direction of the lower link piece 39a and the upper link piece 39b is a direction along the X direction shown in FIG. 4, and the movement of the intermediate link 33 is caused by the vertical movement link unit 31A and the vertical movement link unit 31B. The movement in the X direction and the vertical movement in the vertical direction shown in FIG.

  That is, in the first embodiment, the lower link piece 39a and the upper link piece 39b on one end side including the intermediate link 33, and the lower link piece 39a and the upper link piece 39b on the other end side have a vertically symmetric shape, respectively. The parallel link mechanism unit 31 is provided, in which the vertical movement link unit 31A and the vertical movement link unit 31B perform only vertical vertical movement, and are connected by the intermediate link 33 to interlock the vertical vertical movement of the both. doing.

  The vertical vibration displacements of the two vibration isolators 1 and 1 caused by the large impact vibration in the vertical direction due to the operation of the large industrial machine 101 are converted into two vertical link units 31A in the parallel link mechanism 31. It is balanced by the interlocking up-and-down operation of 31B, and the large industrial machine 101 is prevented from shaking to realize a stable operation of the large industrial machine 101.

  As shown in FIG. 1, the aspect of the anti-swaying link mechanism 30 according to the first embodiment for the two anti-vibration devices 1, 1 is attached to each short side of the two anti-vibration devices 1, 1. In addition to the above, it is possible to adopt a mode in which each of the two vibration isolators 1 and 1 is attached to each long side, and the addition mode can be diversified.

  Further, a vibration-damping damping material or the like can be provided in part of the vibration-preventing link mechanism 30. In this case, the vibration of the large-scale industrial machine 101 is greatly reduced, such as greatly reducing the vibration damping time. The prevention function can be further enhanced.

  Further, the vibration preventing link mechanism 30 according to the first embodiment is arranged in advance on the large industrial machine 101 (not shown), in addition to the case where it is used by being added to the two vibration isolators 1 and 1 described above. In addition to the existing anti-vibration device, the same effects as described above can also be exhibited, and the use symmetry can be diversified.

(Example 2)
Next, an anti-swing link mechanism 30A added to the vibration isolator 1 for a large industrial machine according to Embodiment 2 of the present invention will be described with reference to FIGS.

  In the anti-swaying link mechanism 30A according to the second embodiment, the same elements as those in the above-described anti-swaying link mechanism 30 of the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  The swing prevention link mechanism 30A according to the second embodiment uses a single flat connecting plate 41 in place of the upper substrates 32b and 32b in the pair of vertical link units 31A and 31B. When the upper side of 31B is connected, a pair of mounting plate units 42, 42 arranged at both ends of the one connecting plate 41 are used to respectively prevent the above-mentioned prevention on the side surfaces of both ends of the one connecting plate 41. The vibration preventing link mechanism 30A is attached to the vibration devices 1 and 1.

  As in the case of the first embodiment, a bearing piece support plate 35b having the same configuration as described above is fixed to the lower surface on one end side of the one connecting plate 41 using the bolts 34.

  The same applies to the lower surface on the other end side of the one connecting plate 41.

  As shown in FIGS. 5 and 6, the one attachment plate unit 42 is disposed on a side surface portion on one end side of one connection plate 41 and also has a side surface region on one end side of one connection plate 41. The connection fixing plate 3 is arranged on the lower surface side and the lower surface side of the vibration isolator side receiving plate 2 integrally fixed to the short side of the one vibration isolator 1, and these are integrated by a required number of connection bolts 4. Are connected to each other.

  The other mounting plate unit 42 is also configured in the same manner as described above on the other end side of one connecting plate 41.

  Also in the anti-swaying link mechanism 30A according to the second embodiment, as in the case of the anti-swaying link mechanism 30 according to the first example, the two units are prevented from being accompanied by a large vertical impact vibration caused by the operation of the large industrial machine 101. The vertical vibration displacement of the vibration devices 1 and 1 is balanced by the interlocking vertical movement of the two vertical movement link units 31A and 31B of the parallel link mechanism 31 including the connecting plate 41 in the vibration prevention link mechanism 30A. This prevents the machine 101 from shaking and realizes a stable operation of the large-scale industrial machine 101.

  In this case, in the vibration preventing link mechanism 30A according to the second embodiment, a single flat connecting plate 41 is used instead of the upper substrates 32b and 32b, so that a part of the large industrial machine 101 is used. Is arranged on the connecting plate 41, so that the vibration of the large industrial machine 101 itself is directly transmitted to the two vertical moving link units 31A and 31B through the connecting plate 41, and these two vertical moving link units 31A are transmitted. , 31B can be precisely balanced, and the large industrial machine 101 can be reliably prevented from shaking to realize stable operation of the large industrial machine 101.

  It is possible to add an anti-vibration damping material or the like to a part of the anti-vibration link mechanism 30A according to the second embodiment, to the two anti-vibration devices 1 and 1 of the anti-vibration link mechanism 30A. As in the case of the first embodiment, the shake prevention link mechanism 30A can be added to a new or existing vibration isolation device.

  Furthermore, in the anti-swaying link mechanisms 30 and 30A, the lower link piece 39a and the upper link piece 39b are each configured in a two-unit parallel arrangement. It is possible to lengthen the anti-swaying link mechanism by setting the link to a corresponding length.

  The vibration prevention link mechanism added to the vibration isolator for large industrial machines according to the present invention includes, for example, a blanking press, a transfer press, a high-speed press, a forging press machine, an injection molding machine, used in the automobile industry and the weaving industry. It can be applied to a wide range of applications for preventing vibrations in addition to vibration isolation devices installed in cement mills used in the mining industry, substation circuit breakers in the electrical equipment field, and the like.

DESCRIPTION OF SYMBOLS 1 Vibration isolator 2 Vibration isolator side receiving plate 3 Connection fixing plate 4 Connection bolt 11 Base plate 12 Belleville spring body receiving material 13 Circular hole part 14 Laminated rubber body 15 Shear bolt 16 Belleville spring body 16a Belleville spring 17 Plate spring body restraining plate DESCRIPTION OF SYMBOLS 18 Disc spring body guide member 19 Bolt 20 Vibration receiving body 21 Mounting screw unit 21a Screw part 21b Nut 22 Damping material 23 Cosmetic cover 24 Jack installation space 30 Shaking prevention link mechanism 30A large-sized attached to the vibration isolator for large industrial machines Shake prevention link mechanism added to vibration isolator for industrial machine 31 Parallel link mechanism 31A Vertical motion link unit 31B Vertical motion link unit 32a Lower substrate 32b Upper substrate 33 Intermediate link 34 Bolt 35a Bearing piece support plate 35b Bearing piece support Plate 36 Countersunk screw 37a Bearing piece 7b bearing on piece 38a under shaft 38b upper shaft 39a under the link piece 39b link piece 40 intermediate shaft 41 connecting plate 42 mounting plate unit 101 large industrial machine 102 base part

Claims (5)

This is an anti-sway link mechanism that is added to the vibration isolator for multiple large industrial machines that are arranged in parallel and have vertical motion isolation for large industrial machines that move up and down in the vertical direction and generate large impact vibrations. And
A plurality of vertical motion link units each provided with the plurality of vibration isolation devices, and provided with an upper substrate and a lower substrate;
An intermediate link disposed horizontally in each intermediate portion of the plurality of vertical movement link units;
Have
In each of the vertically moving link units, a plurality of upper link pieces protruded from the upper substrate toward the intermediate link, and a plurality of lower link pieces protruded from the lower substrate toward the intermediate link. Each of the intermediate links is rotatably connected to one end, the other end, and a predetermined position in the length direction to constitute a parallel link mechanism that includes the intermediate link and exhibits a vertically symmetric shape,
The vertical industrial displacement of the plurality of vibration isolators due to a large impact vibration caused by the operation of the large industrial machine is balanced by the interlocking vertical movement of the plurality of vertical link units in the parallel link mechanism, and the large industrial machine An anti-swaying link mechanism added to a vibration isolator for a large industrial machine, characterized in that the anti-swaying device is constructed. This is an anti-swaying link mechanism added to two large-scale industrial machine vibration isolators that are spaced apart in parallel and have a vertical motion anti-vibration function for large industrial machines that move vertically and generate large impact vibrations. And
Two vertical motion link units each attached to the two vibration isolators and having an upper substrate and a lower substrate;
An intermediate link disposed in a horizontal direction with both ends facing each intermediate portion of the two vertical link units;
Have
In each of the vertically moving link units, an upper link piece that protrudes from the upper substrate toward the intermediate link and a lower link piece that protrudes from the lower substrate toward the intermediate link are respectively connected to the intermediate link. A parallel link mechanism portion that is pivotally connected to one end portion and the other end portion and exhibits a vertically symmetric shape including the intermediate link,
The vertical vibration displacement of the two anti-vibration devices due to the large impact vibration caused by the operation of the large industrial machine is balanced by the interlocking vertical movement of the two vertical link units in the parallel link mechanism, and the large industrial machine An anti-swaying link mechanism added to a vibration isolator for a large industrial machine, characterized in that the anti-swaying device is constructed. This is an anti-sway link mechanism that is added to two separate large-scale industrial machine vibration isolator devices that have vertical and vertical anti-vibration functions for large industrial machines that move up and down in the vertical direction. And
With respect to the two vibration isolators, one connection plate and a pair of attachment plate units arranged at both ends thereof are attached to the vibration isolation devices at both end positions of the one connection plate, respectively. And two vertical movement link units each provided with a lower substrate below both end positions of the one connecting plate, and integrated with the bottom surfaces of both end positions of the one connecting plate,
An intermediate link disposed in a horizontal direction with both ends facing each intermediate portion of the two vertical link units;
Have
An upper link piece projecting toward the intermediate link from the lower surface side of one end and the lower surface side of the other end of one connecting plate in each of the vertically moving link units, and an intermediate link rotatable from the lower substrate The lower link pieces projecting toward the upper end of the intermediate link are pivotally connected to one end and the other end of the intermediate link, respectively, and have a vertically symmetric shape including the intermediate link, and the one connecting plate The parallel link mechanism unit connected integrally by
The vertical vibration displacement of the two vibration isolators due to the large shock vibration caused by the operation of the large industrial machine is balanced by the interlocking vertical movement of the two vertical movement link units including the connecting plate in the parallel link mechanism part, A vibration preventing link mechanism added to a vibration isolator for a large industrial machine, wherein the large industrial machine is configured to prevent vibration.   4. The vibration preventing link mechanism added to the vibration isolator for large industrial machines according to claim 1, wherein the vibration isolator is a new or existing vibration isolator.   The said parallel link mechanism part is attached to the short sides or the long sides of the vibration isolator which exhibits the substantially parallelepiped shape of the spaced apart parallel arrangement, The any one of Claims 1 thru | or 4 characterized by the above-mentioned. Anti-sway link mechanism added to vibration isolator for large industrial machines.

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