JP2020169668A - Vibration control device of work machine and work machine - Google Patents

Abstract

To provide a vibration control device of a work machine which enables reduction of vibration occurring in a work machine and vibration occurring on a floor surface due to the vibration occurring in the work machine simultaneously, and to provide a work machine including the vibration control device.SOLUTION: In a work machine 1, a base 11 including a mounting head 16 serving as a work part is supported on a floor surface FL by leg parts 21. A vibration control device 22 of the work machine 1 includes: a base part 31 installed between the leg part 21 and the floor surface FL; base side guides 32 which are provided protruding downward from a base lower surface 11M; and base part side guides 33 which are provided protruding upward from the base part 31. Each base part side guide 33 allows relative movement of the base side guide 32 relative to the base part 31 in a vertical direction while restricting relative movement of the base side guide 32 relative to the base part 31 in a lateral direction in a state that the base part side guide 33 contacts with the base side guide 32 from the lateral direction.SELECTED DRAWING: Figure 3

Description

The present invention relates to a vibration isolator for a work machine such as a component mounting machine and a work machine provided with the vibration isolator.

Conventionally, as one of the working machines for performing a predetermined work by a working unit, a component mounting machine for mounting a component on a substrate is known. In the component mounting machine, the mounting head, which is a working unit, moves with respect to the base supported on the floor by the legs, and the component supply section picks up the components and mounts them on the board repeatedly. To do. In such a working machine, since the working unit repeats a constant operation, the repeated operation of the working unit serves as a vibration source and vibration may occur in the base. The vibration generated in the base adversely affects the work of the work machine itself, and may be transmitted to the floor surface to make the worker feel uncomfortable.

Conventionally, as a means for solving such a vibration problem, a vibration-proof rubber is installed on the lower surface of the leg (contact surface with the floor surface), and the elasticity of the vibration-proof rubber reduces the vibration on the base side. A method of transmitting to the floor surface side is known (see, for example, Patent Document 1 below).

International Publication No. 2017/0884040

However, when the vibration-proof rubber as described above is relatively soft, the vibration on the floor surface side can be reduced, while the vibration of the working machine becomes large, and the vibration-proof rubber is relatively hard. In addition, the vibration of the work equipment can be reduced, but the vibration on the floor side becomes large. Therefore, in the vibration isolation measures using anti-vibration rubber, the vibration generated in the work equipment and the vibration generated in the floor surface due to this are different. It was not possible to reduce both at the same time.

Therefore, the present invention provides a vibration isolator for a work machine capable of simultaneously reducing both vibration generated in the work machine and vibration generated on the floor surface due to the vibration, and a work machine provided with the vibration isolation device. The purpose is.

The anti-vibration device for a working machine of the present invention is a vibration-proof device for a working machine in which a base provided with a working portion is supported on a floor surface by legs, and is between the legs and the floor surface. The base portion to be installed, the base side guide provided so as to project downward from the lower surface of the base facing the floor surface of the base, and the base side guide provided so as to project upward from the base portion. The base portion that allows the base portion side guide to move in the vertical direction with respect to the base portion while restricting the lateral movement of the base side guide with respect to the base portion in a state of being in contact with the base portion from the lateral direction. Equipped with a side guide.

The working machine of the present invention is a working machine in which a base having a working portion is supported on a floor surface by a leg portion, and a base portion installed between the leg portion and the floor surface and the base portion described above. A base-side guide that is provided so as to project downward from the lower surface of the base that faces the floor surface of the base, and a base-side guide that is provided so as to project upward from the base and is in contact with the base-side guide from the lateral direction. The base portion side guide that allows the base portion side guide to move in the vertical direction relative to the base portion while restricting the lateral movement of the base portion side guide with respect to the base portion, and the base portion. A connecting portion for connecting to the base-side guide so as to be relatively movable in the vertical direction is provided.

According to the present invention, both the vibration generated in the working machine and the vibration generated in the floor surface due to the vibration can be reduced at the same time.

Side view of the working machine according to the first embodiment of the present invention Perspective view of the anti-vibration device included in the working machine according to the first embodiment of the present invention. Side view of the vibration isolator according to the first embodiment of the present invention Partially disassembled perspective view of the vibration isolator according to the first embodiment of the present invention. Side view of the vibration isolator according to the first embodiment of the present invention Side view of the vibration isolator provided in the working machine according to the second embodiment of the present invention. Perspective view of the vibration isolator provided in the working machine according to the third embodiment of the present invention. Partial cross-sectional side view of the vibration isolator according to the third embodiment of the present invention

(Embodiment 1)
FIG. 1 shows a working machine 1 according to a first embodiment of the present invention. The work machine 1 is a component mounting machine that mounts the component BH on the substrate KB supplied from the upstream process side and carries it out to the downstream process side, and is a base 11, a substrate transfer unit 12, a feeder carriage 13, a parts feeder 14, It includes a head moving mechanism 15, a mounting head 16, a component camera 17, a control device 18, and the like. In the first embodiment, for convenience of explanation, the flow direction of the substrate KB is the X-axis direction, the horizontal direction orthogonal to the X-axis direction is the Y-axis direction, and the vertical direction is the Z-axis direction. Further, one side of the working machine 1 in the direction along the Y-axis direction is the front side, and the other side is the rear side.

In FIGS. 1 and 2, a plurality of legs 21 extending downward are provided below the base 11 of the work machine 1, and the base 11 is supported on the floor surface FL by these plurality of legs 21. Has been done. Anti-vibration rubber 21G, which is an elastic member, is installed on the lower surface of each leg 21, and the base 11 is supported on the floor FL via the anti-vibration rubber 21G of each leg 21. There is. A vibration isolator 22 is attached to each of the plurality of legs 21. Details of the anti-vibration device 22 will be described later.

The substrate transport unit 12 is composed of a conveyor device, and is provided so as to extend the upper surface side of the base 11 in the X-axis direction. The substrate transport unit 12 transports the substrate KB supplied from the upstream process side in the X-axis direction and positions it at a predetermined work position.

In FIG. 1, the feeder carriage 13 is connected to each of the front side and the rear side of the base 11. A flat plate-shaped feeder base portion 13B extending in a horizontal plane is provided on the upper portion of the feeder carriage 13. The plurality of parts feeders 14 are attached to the feeder base portion 13B of the feeder carriage 13, and each component BH is supplied to the component supply position 14K.

In FIG. 1, the head moving mechanism 15 includes a fixed beam 15a extending above the base 11 in the Y-axis direction, and a moving beam 15b extending in the X-axis direction and having one end supported by the fixed beam 15a. It is composed of a moving plate 15c that can move in the X-axis direction along the moving beam 15b. The mounting head 16 is attached to the moving plate 15c and is moved in the horizontal plane by the movement of the moving beam 15b with respect to the fixed beam 15a in the Y-axis direction and the movement of the moving plate 15c with respect to the moving beam 15b in the X-axis direction. To.

In FIG. 1, a plurality of nozzles 16a are attached to the mounting head 16 downward. Each of the plurality of nozzles 16a can move in the vertical direction (Z-axis direction) and rotate around the Z-axis with respect to the mounting head 16. A vacuum suction force can be generated at the lower end of each nozzle.

In FIG. 1, the component camera 17 is provided in each of the front region and the rear region on the base 11. Each component camera 17 directs the imaging field of view upward, and the component BH attracted and held by the mounting head 16 by the nozzle 16a is imaged from below.

The control device 18 is provided in the base 11 of the work machine 1 (FIG. 1), and controls the operation of each part of the work machine 1. When the work machine 1 performs the component mounting work for mounting the component BH on the substrate KB, first, the substrate transport unit 12 operates to carry in the substrate KB sent from the upstream process side, and the substrate KB is placed in a predetermined work position. Position. When the board transfer unit 12 positions the board KB at the working position, each part feeder 14 supplies the part BH to the part supply position 14K, and the mounting head 16 sucks and holds the part BH by the nozzle 16a.

When the nozzle 16a attracts and holds the component BH, the mounting head 16 moves above the component camera 17, and the component camera 17 images the component BH. The control device 18 detects the position of the component BH based on the image captured by the component camera 17, moves the mounting head 16 using the detection result, and positions the component BH above the target position of the substrate KB. When the component BH is positioned above the target position of the substrate KB, the control device 18 raises and lowers the nozzle 16a, and mounts the component BH held by the nozzle 16a on the substrate KB. As described above, in the work machine 1 of the first embodiment, the mounting head 16 is a working unit that performs a predetermined work (parts mounting work) on the base 11. When the above-mentioned mounting operation of the component BH on the board KB is repeatedly executed and the mounting work of the component BH on the board KB is completed, the board transport unit 12 operates to carry the board KB to the downstream process side. ..

Next, the vibration isolator 22 attached to the leg 21 of the working machine 1 will be described. In FIGS. 2, 3 and 4, the vibration isolator 22 includes a base portion 31, two base side guides 32, two base portion side guides 33, and four connecting members 34.

In FIGS. 2, 3 and 4, the base portion 31 is composed of plate-shaped members having flat upper and lower surfaces. The base portion 31 is installed on the floor surface FL and is interposed between the base portion 31 and the leg portion 21. As described above, since the anti-vibration rubber 21G is installed on the lower surface of the leg 21, the base 11 is supported on the floor FL by the leg 21 via the anti-vibration rubber 21G. It has become.

In FIGS. 2, 3 and 4, the two base-side guides 32 are attached to the lower surface of the base 11 (the surface facing the floor FL and referred to as "base lower surface 11M"). There is. The two base-side guides 32 are arranged at positions that sandwich the leg 21 from the lateral direction, and each has a shape that projects downward (that is, the floor surface FL side).

A roller 42 as a rolling member is provided at the lower end of each of the two base-side guides 32. Each of the two rollers 42 is attached to a rotating shaft 41 extending in the horizontal direction, and is rotatable around the rotating shaft 41J, which is the central axis of the rotating shaft 41. The two rollers 42 included in the two base-side guides 32 are arranged so that the rotation axes 41J are parallel to each other (FIGS. 2 and 3).

In FIGS. 2, 3 and 4, the two base portion side guides 33 are provided on the base portion 31, respectively. The two base portion side guides 33 are arranged at positions sandwiching the two base portion side guides 32 from the lateral direction, and each has a shape protruding upward. Each of the two base portion side guides 33 has a vertical wall surface 33T that faces the two base portion side guides 33. The roller 42 is in contact with the wall surface 33T of each of the two base portion side guides 33 from the lateral direction.

In FIGS. 2, 3 and 4, each of the four connecting members 34 is attached to the upper surface of the base portion 31. Two connecting members 34 are provided corresponding to one base-side guide 32, and the rollers 42 of the base-side guide 32 are sandwiched from the extending direction of the rotation axis 41J. Each connecting member 34 has an elongated hole 35 extending in the vertical direction in the upper portion thereof, and the base is formed in the two elongated holes 35 of the two connecting members 34 arranged so as to sandwich the base side guide 32. Both ends of the rotating shaft 41 of the roller 42 included in the side guide 32 are inserted. In this way, the base portion 31 is in a state of being connected to the base 11 via the rotation shaft 41 of the two rollers 42 and the four connecting members 34.

Here, the lower end portion 35a of the elongated hole 35 of each connecting member 34 is in a state where the base 11 is supported on the floor surface FL by the leg portion 21 on which the base portion 31 is trampled (floor surface installation state). , The rotating shaft 41 in the elongated hole 35 is provided at a position where it does not come into contact from above (FIG. 3). Therefore, the weight of the base 11 in the floor-mounted state is exclusively supported by the plurality of legs 21, and the connecting member 34 does not contribute to supporting the weight of the base 11.

When the base 11 installed on the floor is pulled upward by a crane or the like in the factory, all of the plurality of legs 21 are separated from the upper surface of the base 31 (during this time, each of the two rollers 42). Moves relatively upward on the corresponding wall surface 33T). Then, both ends of each of the rotating shafts 41 of the two rollers 42 abut on the upper end 35b of each elongated hole 35 of the corresponding two connecting members 34, and the base portion 31 abuts on the four connecting members 34 and the four connecting members 34. It is in a state of hanging from the base 11 via the rotation shafts 41 of the two rollers 42 of the two base side guides 32 (FIG. 5). Therefore, the base portion 31 does not separate from the base 11 even when the base 11 is pulled upward to move the base 11.

Here, the upper end 33J of the wall surface 33T of each base portion side guide 33 is a rotation shaft 41 of each roller 42 when the base portion 31 is in a state of hanging from the base 11 via four connecting members 34. It is located higher than the height (Fig. 5). Therefore, as described above, even when the base 11 is pulled upward by a crane or the like in the factory, the roller 42 of the base side guide 32 is in contact with the wall surface 33T of the base side guide 33. maintain. Therefore, if the base 11 is lowered to the floor surface FL, the positional relationship between the two base side guides 32 and the two base portion side guides 33 is restored to the original state.

Next, the operation of the anti-vibration device 22 will be described. The anti-vibration device 22 according to the first embodiment is in a lateral direction (arrow S shown in FIG. 3; referred to as “predetermined lateral direction”) in which two base-side guides 32 constituting the anti-vibration device 22 face each other. Demonstrates anti-vibration function against vibration. That is, since the two base side guides 32 are sandwiched between the two base portion side guides 33 via the two rollers 42, when the base 11 vibrates in the predetermined lateral direction, 2 The relative movement of the base side guide 32 with respect to the base portion 31 (that is, with respect to the floor surface FL) in a predetermined lateral direction is restricted, and the vibration of the base 11 with respect to the floor surface FL is suppressed. At this time, the predetermined lateral vibration generated in the base 11 is transmitted to the floor FL through the base side guide 32 and the base side guide 33, but the floor FL is structurally (floor surface). Since it is difficult to vibrate in the direction parallel to the FL), the base 11 is held without vibrating laterally.

On the other hand, when the base 11 vibrates in the vertical direction, each roller 42 of the two base side guides 32 rolls in the vertical direction on the wall surface 33T of the two base side guides 33. , The base 11 moves relative to the base portion 31 in the vertical direction. Therefore, the vertical vibration generated in the base 11 is not transmitted to the floor surface FL through the base side guide 32 and the base portion side guide 33, and the leg portion 21 of the base 11 (specifically, the anti-vibration rubber 21G). ) Is transmitted to the floor FL. Therefore, by setting the anti-vibration rubber 21G to have a high vibration absorbing capacity, it is possible to greatly reduce the vertical vibration transmitted from the base 11 to the floor surface FL.

As described above, the vibration isolator 22 of the work machine 1 according to the first embodiment is the base portion 31 installed between the leg portion 21 of the base 11 of the work machine 1 and the floor surface FL, and the base portion 11. It is configured to include a base side guide 32 that is provided so as to project from the base lower surface 11M, which is a surface facing the floor surface FL, and a base portion side guide 33 that is provided so as to project upward from the base portion 31. .. Then, the base portion side guide 33 is in contact with the base portion side guide 32 from the lateral direction, and while restricting the lateral movement of the base portion side guide 32 with respect to the base portion 31, the base portion side guide 32 It is designed to allow relative movement in the vertical direction with respect to the base portion 31. More specifically, the base side guide 32 and the base portion side guide 33 are wall surfaces provided with rollers 42, which are rolling members provided on the base portion side guide 32, extending in the vertical direction on the base portion side guide 33. The base portion side guide 33 is in rolling contact with the 33T so that the base portion side guide 33 regulates the lateral movement of the base portion side guide 32 with respect to the base portion 31 in the lateral direction, while the base portion side guide 32 base. It is designed to allow relative movement in the vertical direction with respect to the portion 31.

As described above, one vibration isolator 22 suppresses only vibration in the direction in which the two base-side guides 32 included in the anti-vibration device 22 face each other. Therefore, the direction of vibration suppressed by the vibration isolators 22 attached to each of the plurality of legs 21 is the X-axis direction for some vibration isolators 22 and Y for some other vibration isolators 22. By setting the axial direction, it is possible to suppress any lateral vibration generated in the work equipment 1.

(Embodiment 2)
FIG. 6 shows the vibration isolator 122 of the working machine according to the second embodiment of the present invention. The configuration of the working machine is the same as that of the working machine 1 of the first embodiment except for the vibration isolator 122.

In FIG. 6, the vibration isolator 122 includes a base portion 131, two base side guides 132, one base portion side guide 133, and two connecting members 134. The configuration of the base portion 131 in the second embodiment is the same as that of the base portion 31 in the first embodiment, and the configuration of the base portion side guide 133 and the connecting member 134 in the second embodiment is the base portion side in the first embodiment. It is almost the same as the guide 33 and the connecting member 134.

In FIG. 6, the two base side guides 132 in the second embodiment are arranged at positions sandwiching the base portion side guide 133. The base portion side guide 133 has two wall surfaces 133T that are parallel to each other, and the rollers 142 provided by each of the two base side guides 132 are in contact with the two wall surface 133T from the lateral direction. .. The two connecting members 134 are arranged at positions sandwiching the rotation shaft 141 of the roller 142 included in one of the two base-side guides 132 from the direction in which the rotation axis extends.

Also in the second embodiment, the anti-vibration device 122 responds to vibration in a direction (predetermined lateral direction; arrow S shown in FIG. 6) in which the two base-side guides 132 constituting the anti-vibration device 122 face each other. Demonstrates anti-vibration function. That is, since the two base side guides 132 sandwich one base portion side guide 133 via the two rollers 142, when the base 11 vibrates in the predetermined lateral direction, the two base side guides 132 are sandwiched. The movement of the base side guide 132 with respect to the base portion 131 (that is, with respect to the floor surface FL) is restricted, and the vibration of the base 11 with respect to the floor surface FL is suppressed. At this time, the predetermined lateral vibration generated in the base 11 is transmitted to the floor FL through the base side guide 132 and the base side guide 133, but the floor FL is structurally as described above. Since it is difficult to vibrate in the lateral direction (direction parallel to the floor surface FL), the base 11 is held without vibrating laterally.

On the other hand, when the base 11 vibrates in the vertical direction, each roller 142 of the two base side guides 132 rolls in the vertical direction on each of the two wall surfaces 133T of the base portion side guide 133. As a result, the base 11 moves relative to the base portion 131 in the vertical direction. Therefore, the vertical vibration generated in the base 11 is not transmitted to the floor surface FL through the base side guide 32 and the base portion side guide 133, and the floor is passed through the leg portion 21 (vibration-proof rubber 21G) of the base 11. It is transmitted to the surface FL. Therefore, as in the case of the first embodiment, by making the anti-vibration rubber 21G relatively soft, it is possible to greatly reduce the vertical vibration transmitted from the base 11 to the floor surface FL.

As described above, the vibration isolator 122 of the work machine 1 according to the second embodiment is the same as the vibration isolator 22 of the work machine 1 according to the first embodiment, with the legs 21 of the base 11 of the work machine 1 and the floor surface FL. A configuration including a base portion 131 installed between the two, a base side guide 132 provided so as to project from the lower surface 11M of the base, and a base side guide 133 provided so as to project upward from the base 131. It has become. Then, the base portion side guide 133 is in contact with the base portion side guide 132 from the lateral direction, and while restricting the lateral movement of the base portion side guide 132 with respect to the base portion 131, the base portion side guide 132 It is designed to allow relative movement in the vertical direction with respect to the base portion 131. More specifically, the base side guide 132 and the base portion side guide 133 are wall surfaces provided with rollers 142, which are rolling members provided on the base portion side guide 132, extending in the vertical direction on the base portion side guide 133. It is in rolling contact with the 133T so that the base portion side guide 133 regulates the lateral movement of the base portion side guide 132 with respect to the base portion 131 and the base of the base portion side guide 132. It is designed to allow relative movement in the vertical direction with respect to the unit 131.

In the vibration isolator 122 according to the second embodiment, as in the case of the vibration isolator 22 according to the first embodiment, one vibration isolator 122 faces two base-side guides 132 included in the vibration isolator 122. Only the vibration in the direction of vibration is suppressed. Therefore, the direction of vibration suppressed by the vibration isolator 122 attached to each of the plurality of legs 21 is the X-axis direction for some vibration isolator 122 and Y for some other vibration isolator 122. By setting the axial direction, it is possible to suppress any lateral vibration generated in the work equipment 1.

(Embodiment 3)
7 and 8 show the vibration isolator 222 of the working machine according to the third embodiment of the present invention. The configuration of the working machine is the same as that of the working machine 1 of the first embodiment except for the vibration isolator 222.

In FIGS. 7 and 8, the vibration isolator 222 includes a base portion 231, one base side guide 232, a base portion side guide 233, and two connecting members 234. The configuration of the base portion 231 in the third embodiment is the same as that in the first embodiment. The base side guide 232 is provided on the lower surface 11M of the base, and the base portion side guide 233 is provided on the upper surface of the base portion 231. The base-side guide 232 is composed of a cylindrical or cylindrical member extending downward and has a cylindrical outer surface 232M. The base portion side guide 233 extends upward and has a cylindrical portion 233S having a cylindrical inner surface 233M inside. The base side guide 232 is fitted into the base portion side guide 233 (cylindrical portion 233S) from above, and the base side guide 232 uses its cylindrical outer surface 232M as the base portion side guide 233 (cylindrical portion 233S). ) It is possible to move relatively in the vertical direction while sliding on the cylindrical inner surface 233M.

In FIGS. 7 and 8, the two connecting members 234 are attached to the lower surface 11M of the base. The two connecting members 234 are located at positions sandwiching the base portion side guide 233, and each has an elongated hole 235 extending in the vertical direction. Two protrusions 233B extending laterally from the side surface of the base portion side guide 233 are inserted through these two elongated holes 235. Therefore, the base portion 231 is in a state of being connected to the base 11 via the two connecting members 234 and the base portion side guide 233.

In the vibration isolator 222 of the third embodiment, the cylindrical outer surface 232M of the base side guide 232 is in contact with the cylindrical inner surface 233M of the base side guide 233 with respect to the base portion 231 of the base side guide 232. Lateral relative movement (ie, relative to the floor FL) is restricted. Therefore, any lateral vibration generated in the base 11 can be suppressed. At this time, the lateral vibration generated in the base 11 is transmitted to the floor FL through the base side guide 232 and the base side guide 233, but the floor FL is in the lateral direction (direction parallel to the floor FL). ) Is hard to vibrate, so the lateral vibration of the floor FL is small.

On the other hand, when the base 11 vibrates in the vertical direction, the base side guide 232 slides its cylindrical outer surface 232M with respect to the cylindrical inner surface 233M of the base portion side guide 233. , The base 11 moves relative to the base portion 231 in the vertical direction. Therefore, the vertical vibration generated in the base 11 is not transmitted to the floor surface FL through the base side guide 232 and the base portion side guide 233, and the floor is passed through the leg portion 21 (vibration-proof rubber 21G) of the base 11. It is transmitted to the surface FL. Therefore, as in the case of the first embodiment and the second embodiment, by keeping the anti-vibration rubber 21G relatively soft, the vertical vibration transmitted from the base 11 to the floor surface FL is greatly reduced. be able to.

As described above, the vibration isolator 222 of the work machine 1 according to the third embodiment has the base portion 231 installed between the leg portion 21 of the base 11 of the work machine 1 and the floor surface FL, and the base portion lower surface 11M. The base portion side guide 232 provided in the above and the base portion side guide 233 provided so as to project upward from the base portion 231 are provided. Then, the base portion side guide 233 is in contact with the base portion side guide 232 from the lateral direction, and while restricting the lateral movement of the base portion side guide 232 with respect to the base portion 231 in the lateral direction, the base portion side guide 232 It is designed to allow relative movement in the vertical direction with respect to the base portion 231. More specifically, the base side guide 232 and the base side guide 233 are provided with sliding contact surfaces extending in the vertical direction on both sides (the outer surface 232M of the base side guide 232 and the inner surface 233M of the base side guide 233). The base portion side guides 233 are in sliding contact with each other, whereby the base portion side guide 233 regulates the lateral movement of the base portion side guide 232 with respect to the base portion 231 in the lateral direction, and the base portion 231 of the base portion side guide 232 is in contact with each other. It is designed to allow relative movement in the vertical direction with respect to.

As described above, the vibration isolator 222 shown in the third embodiment can suppress the vibration in all directions (horizontal direction) in the horizontal plane generated on the base 11 of the working machine 1, but the base. By providing the anti-vibration device 222 on each of the plurality of legs 21 included in the base 11, the anti-vibration effect of the base 11 can be further enhanced.

As described above, in the work machine 1 of the first embodiment, the anti-vibration devices 22, 122, and 222 are all installed between the legs 21 of the base 11 of the work machine 1 and the floor surface FL. Base portions 31, 131, 231 and base portions 32, 132, 232 and base portions 31 are provided so as to project downward from the base base lower surface 11M, which is a surface of the base 11 facing the floor surface FL. , 131, 231 and base portion side guides 33, 133, 233 provided so as to project upward. Then, the base portion side guides 33, 133, 233 are laterally contacted with the base portions 31, 131, 231 of the base portion side guides 32, 132, 232 in a state of being in contact with the base portion side guides 32, 132, 232 from the lateral direction. While restricting the relative movement in the direction, the base side guides 32, 132, 232 are configured to allow the relative movement in the vertical direction with respect to the base portions 31, 131, 231.

As described above, in the first embodiment, the second embodiment, and the third embodiment, the base portion side guides 33, 133, and 233 are laterally contacted with the base side guides 32, 132, and 232 to the base side. By restricting the lateral movement of the guides 32, 132, 232 with respect to the base portions 31, 131, 231 in the lateral direction, the lateral vibration generated in the base 11 can be suppressed to be small. At this time, the lateral vibration of the base 11 is transmitted to the floor surface FL side, but since the floor surface FL is generally difficult to vibrate in the lateral direction (in-plane direction of the floor surface FL), the floor surface FL is lateral. The effect of vibration in the direction on the operator is small. The vertical vibration generated in the work machine 1 is transmitted to the floor surface FL through the leg portion 21, but by making the anti-vibration rubber provided on the lower surface of the leg portion 21 relatively soft, the floor surface The vibration in the vertical direction on the FL side can be suppressed to be small. Therefore, according to the working machine 1 (vibration isolators 22, 122, 222 of the working machine 1) in the first embodiment, the second embodiment and the third embodiment, the vibration generated in the working machine 1 and the vibration caused by the vibration are caused. Both the vibration generated on the floor FL can be reduced at the same time.

Although the embodiments of the present invention have been described so far, the present invention is not limited to the above-mentioned ones, and various modifications and the like are possible. For example, in the first and second embodiments described above, the base side guides 32 and 132 are configured to bring the rollers 42 and 142 into contact with the wall surfaces 33T and 133T of the base portion side guides 33 and 133. The rollers 42 and 142 may be rolling members, ball members, or the like. Further, although the rolling members (rollers 42 and 142) are provided on the base side guides 32 and 132, they may be provided on the base portion side guides 33 and 133. In this case, the base side guides 32 and 132 are formed with a wall surface to which the rolling member is in contact. That is, the base side guides 32 and 132 and the base portion side guides 33 and 133 are in rollable contact with the wall surface provided with the rolling member provided on one side extending in the vertical direction on the other side. As a result, the base side guides 32 and 132 are restricted from laterally moving relative to the bases 31 and 131, and are allowed to move vertically relative to the bases 31 and 131. Just do it.

Further, in the third embodiment, the base side guide 232 is composed of a cylindrical or columnar member extending downward, and the base portion side guide 233 is composed of a member having a cylindrical inner surface extending upward. , The base side guide 232 is fitted into the base side guide 233 from above, but these may be opposite. That is, the base portion side guide 233 is composed of a cylindrical or columnar member extending upward, and the base portion side guide 232 is composed of a member having a cylindrical inner surface extending downward, and the base portion side guide 233 is composed of a member. May be configured to fit into the base side guide 232 from below.

Further, in the above-described first, second and third embodiments, the base portion is connected to the base side guide by a connecting member which is a connecting portion so as to be relatively movable in the vertical direction. However, the base portion may be separable from the base side guide without the connecting portion. In this case, when installing the base on the floor, first, a plurality of bases are installed on the floor according to the arrangement of the plurality of legs provided on the base, and then each leg steps on each base. The base should be installed on the floor. Further, the anti-vibration device does not necessarily have to be provided on all of the plurality of legs of the base, and if the base can be effectively vibration-proofed, a part of the plurality of legs can be provided. It may be provided only in.

Provided are a vibration isolator of a work machine capable of simultaneously reducing both vibration generated in the work machine and vibration generated on the floor surface due to the vibration, and a work machine provided with the vibration isolation device.

1 Working machine 11 Base 11M Bottom of base 16 Mounting head (working part)
21 Legs 21G Anti-vibration rubber (elastic member)
22,122,222 Anti-vibration device 31,131,231 Base part 32,132,232 Base side guide 232M Outer surface (sliding contact surface)
33,133,233 Base side guide 34,134,234 Connecting member (connecting part)
233M inner surface (sliding contact surface)
33T, 133T Wall surface 42,142 Roller (rolling member)
FL floor

Claims (9)

A vibration isolator for a work machine in which the base provided with the work part is supported on the floor by the legs.
A base portion installed between the legs and the floor surface,
A base side guide provided so as to project downward from the lower surface of the base facing the floor surface of the base, and
The base side guide is provided so as to project upward from the base portion, and while restricting the lateral movement of the base side guide with respect to the base portion in a state of being in contact with the base side guide from the lateral direction. A vibration isolator for a working machine provided with a base portion side guide that allows relative movement in the vertical direction with respect to the base portion. The base side guide and the base portion side guide are in rollable contact with a wall surface provided with a rolling member provided on one side extending in the vertical direction on the other side, whereby the base portion is brought into contact with the base portion. The first aspect of claim 1, wherein the side guide regulates the lateral movement of the base side guide with respect to the base portion, and allows the base side guide to move vertically with respect to the base portion. Anti-vibration device for work equipment. The base-side guide and the base-side guide are slidably contacted with each other by sliding contact surfaces provided so as to extend in the vertical direction, whereby the base-side guide is on the base-side. The anti-vibration device for a working machine according to claim 1, wherein the base side guide is allowed to move relative to the base portion in the vertical direction while restricting the relative movement of the guide in the lateral direction with respect to the base portion. The anti-vibration device for a working machine according to any one of claims 1 to 3, further comprising a connecting portion for connecting the base portion to the base side guide so as to be relatively movable in the vertical direction. The anti-vibration device for a working machine according to any one of claims 1 to 4, wherein the leg portion contacts the base portion via an elastic member. A work machine in which a base having a work part is supported on the floor by legs.
A base portion installed between the legs and the floor surface,
A base side guide provided so as to project downward from the lower surface of the base facing the floor surface of the base, and
The base side guide is provided so as to project upward from the base portion, and while restricting the lateral movement of the base side guide with respect to the base portion in a state of being in contact with the base side guide from the lateral direction. Base portion side guide that allows relative movement in the vertical direction with respect to the base portion,
A working machine provided with a connecting portion for connecting the base portion to the base side guide so as to be relatively movable in the vertical direction. The base side guide and the base portion side guide are in rollable contact with a wall surface provided with a rolling member provided on one side extending in the vertical direction on the other side, whereby the base portion is brought into contact with the base portion. The sixth aspect of claim 6, wherein the side guide regulates the lateral movement of the base side guide with respect to the base portion, and allows the base side guide to move with respect to the base portion in the vertical direction. Working machine. The base-side guide and the base-side guide are slidably contacted with each other by sliding contact surfaces provided so as to extend in the vertical direction, whereby the base-side guide is on the base-side. The working machine according to claim 6, wherein the base side guide is allowed to move relative to the base portion in the vertical direction while restricting the relative movement of the guide in the lateral direction with respect to the base portion. The working machine according to any one of claims 6 to 8, wherein the leg portion contacts the base portion via an elastic member.

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