JP2003090387A - Mounting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To establish reduction in the number of parts and in cost in a mounting device, and facilitate the mounting work thereof. SOLUTION: A bolt 41 is fixed on an engine support 33, and a flat plate type stopper 43 is fitted by the bolt 41 in a state separated from the engine support 33. A elastic member 44 divided into two for vibration absorption is fitted on the bolt 41 between the engine support 33 and the flat plate type stopper 43, and a mounting plate 47 fixed on an engine 31 is fitted on these elastic members 44. An engaging part 50 positioned through a clearance 49 against each of the engine support 33 and the flat plate type stopper 43 is integrally provided on the mounting plate 47.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting device having a vibration absorbing function.

[0002]

2. Description of the Related Art As shown in FIGS. 5A and 6, an engine 11 mounted on a construction machine is supported by mounting devices 12 having vibration absorbing functions provided at a plurality of locations, It is designed so that the generated vibrations are not transmitted to the aircraft as much as possible.

In the mount device 12, a bracket 15 is fixed to the engine 11 with bolts 13 and washers 14,
As shown in FIG. 5 (b), since the mounting hole 16 is provided in the horizontal plane portion of the bracket 15, the elastic member is divided in half into the sleeve 17 from below and above the mounting hole 16. 18 and further, cup-shaped stoppers 19 are respectively fitted on the lower side and the upper side of these elastic members 18,
The upper and lower cup-shaped stoppers 19 are fixed by bolts 22 penetrating the inside of the sleeve 17 of the cup-shaped stopper 19 and the elastic member 18 and screwed into a mounting counterpart 21 on the machine body side.

These upper and lower cup-shaped stoppers 19 are respectively located on the upper and lower surfaces of the bracket 15 with a gap 23 therebetween, and within the range of these gaps 23, the elasticity of the elastic member 18 causes the bracket 15 to move. Although the engine 11 can vibrate through, the larger amplitude of the engine 11 is regulated by the upper and lower cup-shaped stoppers 19. Therefore, for example, as shown in FIG. It is possible to prevent the member from coming into contact with and being damaged.

[0005]

The cup-shaped stoppers 19 on the upper and lower sides of the conventional mounting device 12 are not easy to mold as compared with the flat-plate type stoppers, and only the cup-shaped stoppers 19 on either one of the upper and lower sides are provided. However, since only one side of vibration can be regulated and the cup-shaped stoppers 19 on both upper and lower sides are indispensable, there are problems that it is difficult to reduce the number of parts and costs, and that assembly is not easy.

The present invention has been made in view of the above points, and an object of the present invention is to reduce the number of parts in a mounting device, reduce costs, and facilitate assembly.

[0007]

According to a first aspect of the present invention, there is provided a shaft member fixed to a mounting mating portion, and a flat plate type stopper which is locked by the shaft member in a state of being separated from the mounting mating portion. , A vibration absorbing elastic member fitted to the shaft member between the mounting counterpart and the flat plate stopper, a mounting plate fitted to the elastic member and fixed to the object to be mounted, and integrated with the mounting plate A mounting device provided with a locking portion that is located in the mounting mating portion and the flat plate stopper with a gap therebetween. Since the stopper is provided integrally with the mounting plate, an equivalent amplitude regulation function can be obtained by simply providing a flat plate type stopper on one side instead of the conventional pair of cup type stoppers, reducing the number of parts in the mounting device, Cost reduction Together with the, possible assembled easily.

According to a second aspect of the present invention, there is provided a shaft member fixed to the mounting counterpart, one flat plate-shaped stopper fitted on the shaft member and located on the side of the mounting counterpart, and one flat plate-shaped stopper. Another plate-shaped stopper that is locked by the shaft member in a state of being separated from the shaft member, and an elastic member for absorbing vibration that is fitted to the shaft member between the one plate-shaped stopper and the other plate-shaped stopper. , A mounting plate fitted to an elastic member and fixed to an object to be mounted, and a locking portion provided integrally with the mounting plate and positioned with a gap between each of the one flat plate stopper and the other flat plate stopper. It is a mounting device equipped with, and since the mounting plate is integrally provided with the locking portion, it is possible to mount two flat plate type stoppers which are provided in place of the conventional cup type stoppers, which are easy to mold and assemble. Equal amplitude in vibration of objects You can secure a gap that can be regulated, thereby the cost down.

According to a third aspect of the invention, in the mounting apparatus according to the first or second aspect, the mounting surface of the mounting counterpart, the flat plate-shaped stopper, and the elastic member mounting surface of the mounting plate are provided in the horizontal direction. The shaft member, the elastic member, and the locking portion are mounting devices that are provided in the vertical direction, and the amplitude in the vertical direction of the vibration of the mounted object is within the range of the gap provided above and below the locking portion. Can be regulated,
The horizontal movement of the mounted object can be restricted by the shaft member fixed to the mounting counterpart through the elastic member.

According to a fourth aspect of the present invention, in the mounting apparatus according to any one of the first to third aspects, the elastic member is provided at one side in a mounting hole provided in the elastic member mounting surface portion of the mounting plate, and The mount device is a rubber member that is split in two and is fitted from the other side, and it is possible to improve the assembling property of the elastic member into the mounting hole of the mounting plate.

According to a fifth aspect of the present invention, in the mounting device according to any one of the first to fourth aspects, the mounting plate is a mounting device fixed to an engine equipped with a cooling fan. By limiting the amplitude of vibration of the engine within a limited range, it is possible to prevent the cooling fan from interfering with members around the engine and being damaged.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will now be described in detail with reference to the embodiment shown in FIGS.

1 (a) and 2 show an engine 31 as a mounted object. For example, an engine 31 is mounted on a base frame 32 provided in a construction machine such as a hydraulic excavator.
A comparatively low engine support 33 and a comparatively high engine support 34 are installed as the mounting counterparts for mounting the engine according to the shape of 31.
The engine 31 is mounted on 33 and 34 via mounting devices 35 and 36. The engine 31 includes a cooling fan 37.

One mounting device 35 mounted on the front side and the opposite side of the lower right side of the engine 31 shown in FIG. 1 (a) has an engine support 33 as shown in FIG. 1 (b). A bolt 41 as a shaft member is screwed into and fixed to the engine support 33, and is separated from the engine support 33.
A disc-shaped flat plate stopper 43 is locked by a washer 42 by 41, and a plurality of elastic members 44 for absorbing vibration are fitted to the bolt 41 between the engine support 33 and the flat plate stopper 43. Of the elastic member 44 of the mounting hole 47 of the mounting plate 47 fixed to the engine 31 by the bolt 45 and the washer 46.
The engine support is attached to the tip of this mounting plate 47.
Locking portions 50 are provided integrally with each of the 33 and the flat plate-shaped stopper 43 with a gap 49 therebetween.

The one mounting device 35 includes a mounting surface 33a of the engine support 33, a flat plate type stopper 43 and a mounting plate 4.
The elastic member mounting surface portion 47a of 7 is provided in the horizontal direction, while the bolt 41, the elastic member 44 and the locking portion 50 are provided in the vertical direction.

Further, the plurality of elastic members 44 in the one mounting device 35 are two members which are fitted from one side and the other side into the mounting holes 48 provided in the elastic member mounting surface portion 47a of the mounting plate 47. It is a relatively rubber member.

The elastic members 44 are formed in a substantially conical shape, and the sleeves 51 are fitted in the central portions of the elastic members 44. The lower end surface and the upper end surface of the sleeves 51 are the mounting surfaces 33a of the engine support 33. And a flat plate type stopper 43, and a mounting plate 47 is provided on the large diameter side of each elastic member 44.
Small-diameter step portions 52 that fit into the mounting holes 48 are formed respectively.

Bolt insertion holes 53 and 54 are provided in the central portion of the flat plate type stopper 43 of the mounting device 35 and in the sleeve 51 of each elastic member 44, and the engine support 33 is provided with these bolts. A screw hole 55 is provided for screwing the bolt 41 inserted into the insertion holes 53, 54.

As shown in FIG. 3, the mounting plate 47 is
The elastic member mounting surface portion 47a and the engine side mounting surface portion 47b are formed into an L shape, and the elastic member mounting surface portion 47a is provided with a mounting hole 48 for fitting the elastic member 44 therein. A plurality of bolt insertion holes 56 for inserting bolts 45 for fixing the mounting plate 47 to the engine 31 are formed in the side mounting surface portion 47b.

Further, the locking portion 50 is a surface for attaching the elastic member.
It is welded perpendicularly to the tip end surface of the elastic member attachment surface portion 47a so as to project equally above and below 47a.

When the engine is fixed using the one mounting device 35, the small-diameter step portion 52 of the upper and lower elastic members 44 is inserted into the mounting hole 48 of the mounting plate 47 fixed to the engine 31.
And the sleeves 51 of these elastic members 44 respectively.
The engine 31 is mounted so that the bolt insertion hole 54 in the engine support 33 is positioned in the screw hole 55 of the engine support 33, and the bolt insertion hole 53 of the flat plate type stopper 43 is positioned in the bolt insertion hole 54 in each sleeve 51. The bolt 41 is inserted into the bolt insertion holes 53 and 54 through the washer 42, and the bolt 41 is screwed into the screw hole 55 and fastened. In the mounting device 35 on the right side in FIG. 2, a nut 57 is screwed onto the bolt 41 to be fixed.

As described above, by tightening the bolt 41 inserted in the sleeve 51, the mounting surface 33a of the engine support 33 and the flat plate-shaped stopper 43 can be fixed at fixed positions, and these are fixed to the movable locking portion 50. It can be a fixed position stopper.

Next, the other mounting device 36, which is mounted on the lower left side of the engine 31 shown in FIG. 1 (a) on the front side and the opposite side, is a pump mounting fixed to the engine 31 with bolts 60. It is attached via a flange plate 61.

Further, in the other mounting device 36, as shown in FIG. 1A, a bolt 41 as a shaft member is fixed to an engine support 34 as a mounting counterpart, and the engine support 34 is attached to the bolt 41. One flat plate type stopper 62 located on the side is fitted and
The other flat plate-shaped stopper 43 is locked by the bolt 41 in a state of being separated from the 62, and a plurality of elastic members for absorbing vibrations are fixed to the bolt 41 between the one flat plate-shaped stopper 62 and the other flat plate-shaped stopper 43. 44 are fitted to these elastic members 44,
A mounting plate 63 fixed to the engine 31 is fitted, and the mounting plate 63 is integrally provided with a locking portion 50 which is located with a gap 49 between each of the one flat plate type stopper 62 and the other flat plate type stopper 43. It is provided in.

The shapes of the flat plate-shaped stopper 43 and the elastic member 44 in the other mount device 36 are the same as those provided in the one mount device 35, and therefore the description thereof is omitted. Further, the flat plate type stopper 62 on the engine support 34 has the same disc shape as the flat plate type stopper 43.

On the other hand, the structure of the mounting plate 63 in the other mount device 36 is different from that of the one mount device 35 in FIG.
As shown in FIG. 5, vertical plates 64 are welded to the left and right parts of the pump mounting flange plate 61, and the mounting plate 63 is welded between each plate 64 and the pump mounting flange plate 61. The locking portion 50 is welded to the tips of these mounting plates 63.

When the engine is fixed using the other mounting device 36, the upper and lower elastic members 44 are fitted in the mounting holes 48 of the mounting plate 63 fixed to the pump mounting flange plate 61 of the engine 31. Then, the flat plate type stoppers 43 and 62 are positioned on the upper and lower sides of these elastic members 44, and the bolts 41 inserted through the washers 42 into these bolt insertion holes are screwed into the screw holes of the engine support 34 and tightened. To do.

Next, the operation of this embodiment will be described.

In each of the mounting devices 35 and 36 provided on the right side and the left side of FIG. 1A, when the engine 31 vibrates, the elastic member 44 absorbs the vibration and the vibration of the engine 31 causes the vibration of the engine support 33. , 34 is prevented.

At this time, the engaging portion 50 integrally provided on the mounting plate 47 vibrates between the engine support 33 and the flat plate type stopper 43, and the engaging portion integrally provided on the mounting plate 63. Since the 50 vibrates between the upper and lower flat plate-shaped stoppers 43 and 62, the vertical amplitude of the vibration of the engine 31 is restricted within the range of the gap 49 set above and below the locking portion 50.
In the case of the mounting device 35 provided on the right side of FIG. 1A, the amplitude larger than that is caused by the engagement between the locking portion 50 and the engine support 33 and the engagement between the locking portion 50 and the flat stopper 43. The mounting device 36 that is regulated and is provided on the left side of FIG.
In the case of, the engagement is restricted by the engagement of the locking portion 50 and the upper and lower flat plate-shaped stoppers 43 and 62.

Further, the horizontal motion of the engine 31 is
The bolts 41 fixed to the engine supports 33 and 34 limit the elastic members 44.

Next, the effect of this embodiment will be described.

In one mounting device 35, the engaging portion 50 positioned with the gap 49 between the engine support 33 and the flat plate-shaped stopper 43 is integrally provided on the mounting plate 47, so that a pair of conventional cups is used. By replacing the shape stopper 19 with a flat plate-shaped stopper 43 on one side, the same amplitude regulation function can be obtained, the number of parts can be reduced, the cost can be reduced, and the assembling can be facilitated.

In the other mounting device 36, since the engaging portion 50 is integrally provided on the mounting plate 63 fixed to the engine 31 via the pump mounting flange plate 61, the flat plate stopper 43 which is easy to mold and assemble. , 62, a gap 49 that can regulate the amplitude of vibration of the engine 31 to the same level as the conventional cup-shaped stopper 19.
Can be secured and the cost can be reduced.

The vertical amplitude of the vibration of the engine 31 can be restricted within the range of the gap 49 provided above and below the locking portion 50, and the horizontal motion of the engine 31 is fixed to the engine supports 33 and 34. It can be restricted by the elastic member 44 by means of the bolt 41 which is formed.

Since the elastic member 44 is a rubber member that is bisected and fitted in the mounting hole 48 of the mounting plate 47 from one side and the other side, the assembling property of the elastic member 44 to the mounting hole 48 is Can be improved.

By limiting the amplitude of the vibration of the engine 31 within the limited range by the mounting devices 35 and 36 as described above, it is possible to prevent the cooling fan 37 from interfering with members around the engine and being damaged.

[0038]

According to the first aspect of the present invention, since the engaging portions located with a gap between the mating portion and the flat plate-shaped stopper are provided integrally with the mounting plate, the conventional 1
By providing a flat plate type stopper on one side instead of a pair of cup type stoppers, the same amplitude regulation function can be obtained, and the number of parts in the mounting device can be reduced, the cost can be reduced, and the assembling can be facilitated.

According to the second aspect of the present invention, since the engaging portion is integrally provided on the mounting plate, two flat plate type stoppers which are provided in place of the conventional cup type stopper and which can be easily molded and assembled. However, it is possible to secure a gap that allows the amplitude of the vibration of the mounted object to be regulated to the same level, thereby reducing the cost.

According to the third aspect of the invention, the vertical amplitude of the vibration of the mounted object can be regulated within the range of the gap provided above and below the locking portion, and the vibration of the mounted object in the horizontal direction can be controlled. The movement can be restricted by the shaft member fixed to the mounting counterpart through the elastic member.

According to the fourth aspect of the invention, the elastic member is a two-part rubber member fitted from one side and the other side into the mounting holes provided in the elastic member mounting surface portion of the mounting plate. Therefore, the assembling property of the elastic member with respect to the mounting hole of the mounting plate can be improved.

According to the fifth aspect of the present invention, by limiting the amplitude of the vibration of the engine within a limited range by such a mounting device, the cooling fan may interfere with a member around the engine and be damaged. Can be prevented.

[Brief description of drawings]

FIG. 1A is a front view showing an embodiment of a mounting device according to the present invention, and FIG. 1B is a sectional view taken along line bb thereof.

FIG. 2 is a side view of the same mounting device.

FIG. 3 is a perspective view showing an example of a mounting plate of the same mounting device.

FIG. 4 is a perspective view showing another example of a mounting plate of the same mounting device.

FIG. 5A is a front view showing a conventional mounting device;
(B) is the bb line sectional view.

FIG. 6 is a side view of the conventional mounting device of the above.

[Explanation of symbols]

31 Engine as mounted object 33 Engine support as a mating part 33a Mounting surface 34 Engine support as a mating part 37 Cooling fan 41 Bolt as shaft member 43 Flat stopper 44 Elastic member 47 Mounting plate 47a Elastic member mounting surface 48 mounting holes 49 Gap 50 Locking part 62 Flat stopper 63 Mounting plate

Claims (5)

[Claims] 1. A shaft member fixed to a mounting counterpart, a flat plate type stopper locked by the shaft member in a state of being separated from the mounting counterpart, and a shaft member between the mounting counterpart and the flat plate stopper. The elastic member for absorbing vibration, the mounting plate that is fitted to the elastic member and fixed to the mounted object, and the mounting mating part and the flat plate stopper that are integrally provided on the mounting plate. A mounting device, comprising: a locking portion positioned via a gap. 2. A shaft member fixed to a mounting counterpart, one flat plate-shaped stopper fitted to the shaft member and located on the side of the mounting counterpart, and a shaft member separated from the one flat plate stopper. And the other plate-shaped stopper locked by the elastic member for vibration absorption fitted to the shaft member between the one plate-shaped stopper and the other plate-shaped stopper, and to the elastic member. A mounting plate fixed to an object to be mounted; and a locking portion integrally provided on the mounting plate and positioned with a gap between one flat plate stopper and the other flat plate stopper. Mount device. 3. The mounting surface of the mounting counterpart, the flat plate-shaped stopper and the elastic member mounting surface of the mounting plate are provided in the horizontal direction, and the shaft member, the elastic member and the locking portion are provided in the vertical direction. The mounting device according to claim 1, wherein the mounting device is a mounting device. 4. The elastic member is a rubber member that is bisected and fitted in a mounting hole provided in the elastic member mounting surface portion of the mounting plate from one side and the other side. 4. The mounting device according to any one of 1 to 3. 5. The mounting device according to claim 1, wherein the mounting plate is fixed to an engine equipped with a cooling fan.