JPS6383330A - Supporting mechanism for oscillating body - Google Patents

Abstract

PURPOSE:To smoothly oscillate an oscillating body, by providing a stationary body with a stationary body shaft pin, and the oscillating body with an oscillating body shaft pin, to oscillate both shaft ins, and by connecting the pins with a cross slide connector adsorbing the change of a cross angle. CONSTITUTION:To a across slide connector 10 for connecting a stationary body shaft pin 9 and an oscillating shaft pin 6 with, shafts 11, 12 are connected mutually rotatably, and on the shaft 11, a sliding hole 15 along the vertical direction is formed, and on the other shaft 12, a sliding hole 16 along the horizontal direction is formed, respectively, and the shaft pin 6 is inserted into the sliding hole 15, and the shaft pin 9 is inserted into the sliding hole 16, respectively. When an oscillating body 2 is oscillated from a position I to a position II, then the cross angle between both shaft pins 6, 9 is changed, and the shafts 11, 12 of the connector 10 are relatively rotated, and by the connector 10, the shaft pin 9 is made to slide in the right direction, and the shaft pin 6 is made to slide vertically. Thereby, the oscillating body is smoothly oscillated, and an excessive force can be prevented from being worked on a pivotally fitting section.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a structure for supporting a rocking body that receives heavy loads in civil engineering vehicles and cargo handling vehicles.

The conventional rocking body has a large deviation from the force acting perpendicularly to the rocking surface, and an excessive force acts on the support portion of the rocking body.

The ninth way to improve this is to separately provide an upright arm b adjacent to the swinging body α, which is a reach arm, as shown in Figure 9, so that when the swinging body α swings, the swinging body α comes into contact with the upright arm b. However, a structure is adopted in which the oscillator α cannot be photographed any further (Kōwa Utility Model Publication No. 59-20446).

Problems to be Solved by the Invention However, the upright arm b is also a rocking body pivotally connected to the vehicle body C, and moreover, the rocking direction of the upright arm b is the same as that of the rocking body α.

The ninth point is that the upright arm b also tends to shake due to a force from a direction perpendicular to the rocking surface of the rocking body α. It is necessary to

In addition, since vibration is prevented by contact as described above, there is a problem of durability due to wear, and there is also a problem of generation of abnormal noise when contact is made.

Purpose of the Invention The present invention has been made in view of the above-mentioned circumstances, and its purpose is to not only prevent swinging while smoothly rocking the rocking body, but also to prevent excessive force from being applied to the pivot portion of the rocking body. It is an object of the present invention to provide a support structure for a rocking body that can prevent the rocking body from acting.

Means and Function for Solving the Problems To achieve the above object, the present invention provides a fixed body IK fixed body side shaft pin 9, and a fixed body IK fixed body side shaft pin 9 is provided on the rocking body 2 that swings with respect to the fixed body 1. A shaft pin 6 is provided, and the swinging body side shaft pin 6 and the fixed body side shaft pin 9 are slidable with respect to the swinging body side shaft pin 6 and the fixed body side shaft pin 9, and the swinging body side shaft pin 6 and the fixed body side shaft pin 9 are slidable. This configuration is such that they are connected by a cross slide connector 10 that absorbs changes in the crossing angle of the fixed body side shaft pins 9.

When the rocking body 2 swings, the intersection angle between the fixed body side shaft pin 9 and the rocking body side shaft pin 6 changes, but this change is absorbed by the cross slide connector 10. The oscillating body 2 is made to swing smoothly with respect to the fixed body side shaft pin 9 and the oscillating body side shaft pin 6.

Embodiments Hereinafter, embodiments of the present invention will be explained based on FIGS. 1 to 8.

In FIG. 1, reference numeral 1 denotes a swinging body as a reach arm which is attached to a fixed body as a vehicle body frame so as to be swingable back and forth by an IK pin 3. Upper and lower swinging body side brackets 4.5 are fixed to the inner surface of the swinging body 2, and a swinging body side shaft pin 6 is attached to these swinging body side brackets 4.5.

Further, the fixed body 1 includes front and rear fixed body side brackets 7.8.
are fixed, and a fixed body side shaft pin 9 is attached to these fixed body side brackets 7.8. This fixed body side shaft pin 9
and the rocking body side shaft pin 6 are connected to each other by a cross slide connector 10.

That is, as shown in FIG. 4, this cross slide connector 10 has two shirts II and +2 rotatably connected to each other by a flange 13 and a bolt 14, and a sliding hole I5 extending vertically along one shaft 11. A sliding hole 16 is formed in the other shaft 12 along the front-rear direction, and the swinging body side shaft pin 6 is the swinging hole of the cross slide connector 10! 5, the fixed body side shaft pins 9 are slidably inserted into the sliding holes 16, respectively.

In FIG. 1, 17 is a link plate, 18 is a lift arm, and 19 and 20 are link rods.

Next, the operation will be explained.

When the rocking body 2 swings from position (1) to position (2) as shown in FIG. 5, the intersection angle between the fixed body side shaft pin 9 and the rocking body side shaft pin 6 changes. This change is absorbed by the rotation of the shirt) II of the cross-slide connector 10 relative to the shirt) 12.

Further, the cross slide connector 10 slides rightward on the fixed body side shaft pin 9 and also slides up and down on the oscillating body side shaft pin 6.

The swinging body 2 swings smoothly due to the above-described operation of the cross slide connector 10.

The cross slide connector 10 connects the swinging body 2 to the fixed body 1.
It is supported in a direction perpendicular to the swing plane.

Therefore, even if a force is applied to the oscillating body 2 in a direction perpendicular to the oscillating surface, this acting force can be transferred to the cross slide connector I.
Since the fixed body 1 receives it through O, the rocking body 2 does not swing.

The rocking body support structure A configured as described above can be used as a support device for the blade 21 as shown in FIGS. 6 to 8.

That is, a frame 22 mounted on a vehicle body (not shown)
A blade 21 is provided at the center lower part of the frame 22 so as to be able to swing left and right by a shaft pin 23, and the base end of a tilt cylinder 24.25 is attached to a pin 26.27 at the left and right ends of the frame 22.
The piston rod 28.29 of the tilt cylinder/da 24.25 is attached to the bracket 30.3 on the back of the blade 21.
It is attached to 1 with pins 32 and 33.

The support structures A are provided on the left and right sides of the upper surface of the blade 21, and these support structures A support the blade 21 passing through the swinging body 2.

That is, the fixed body side bracket 7.8 of the support structure A is attached to the upper surface of the frame 22, and the fixed body side bracket 4.
, 5 are fixed to the back surface of the blade 21, and the swinging body side shaft pin 6 and the fixed body side shaft pin 9 are connected by a cross slide connector 10.

When the tilt cylinders 24 and 25 are actuated to swing the blade 21 as shown in FIG. 8, the intersecting angle between the fixed body side shaft pin 9 and the oscillating body side shaft pin 6 changes. This change is absorbed by the rotation of the shaft 11 of the cross slide connector 10 relative to the shaft 12.

Further, the cross slide connector 10 slides rightward on the fixed body side shaft pin 9 and also slides up and down on the oscillating body side shaft pin 6.

The blade 21 swings smoothly due to the above-described operation of the cross slide connector 10.

The cross slide connector 10 supports the blade 21 on the frame 22 in a direction perpendicular to the swing plane. In consideration, even if a force is applied to the blade 21 in a direction perpendicular to the oscillating surface, the oscillating body side shaft pin 6 and the fixed body side shaft pin 9
The change in the crossing angle of is absorbed by the cross slide connector 10.

Therefore, when the rocking body 2 swings, the intersection angle between the fixed body side shaft pin 9 and the rocking body side shaft pin 6 changes, but this change is absorbed by the cross slide connector 10.
The cross slide connector 10 slides on the fixed body side shaft pin 9 and the swinging body side shaft pin 6, so that the swinging body 2 swings smoothly. Moreover, this acting force can be applied to the cross slide connector 10.
Since the frame 22 receives the blade 21 through the blade 21, the blade 21 does not swing.

Effects of the Invention As detailed above, the supporting structure for a rocking body according to the present invention is such that the fixed body 1 is provided with the fixed body side shaft pin 9, and the rocking body 2 that swings with respect to the fixed body 1 is provided with the rocking body side shaft pin 9. A pin 6 is provided, and the oscillating body side shaft pin 6 and the fixed body side shaft pin 9 are slidable relative to the oscillating body side shaft pin 6 and the fixed body side shaft pin 9, and the oscillating body side shaft pin 6 and the fixed body side shaft pin 9 are slidable. This is characterized in that they are connected by a cross slide connector 1o that absorbs changes in the crossing angle of the fixed body side shaft pins 9.

Therefore, when the rocking body 2 swings, the intersection angle between the fixed body side shaft pin 9 and the rocking body side shaft pin 6 changes, but this change is absorbed by the cross slide connector 10.
Also cross slide connector tall fixed body side shaft pin 9
, the oscillating body 2 slides on the oscillating body side shaft pin 6 and swings smoothly. Moreover, the cross slide connector 1° supports the oscillating body 2 on the fixed body 1 in a direction perpendicular to the oscillating surface, so that a force in a direction perpendicular to the oscillating surface acts on the oscillating body 2. Since the fixed body 1 receives this acting force via the cross slide connector 10, it is possible not only to prevent the swinging body 1 from swinging, but also to prevent excessive force from acting on the pivot portion of the swinging body 1.

[Brief explanation of the drawing]

Fig. 1 is a partially omitted side view of a reach shovel loader having a support structure for a rocking body according to the present invention, Fig. 2 is a perspective view of an embodiment of the present invention, and Fig. 3 is a perspective view of the main parts of the same. , FIG. 4 is a longitudinal cross-sectional view of a cross slide connector, FIG. 5 is an explanatory diagram of the operation of the rocking body support structure according to the present invention, and FIG. 6 is a next blade support device equipped with the rocking body support structure according to the present invention. FIG. 7 is a sectional view taken along the line ■-■ in FIG. 6, FIG. Figure 10 is a front view of the upright arm. 1 is a fixed body, 2 is a swinging body, 6 is a swinging body side shaft pin, 9 is a fixed body side shaft pin, and 10 is a cross slide connector.

Claims (1)

[Claims] A fixed body side shaft pin 9 is provided on the fixed body 1, a rocking body side shaft pin 6 is provided on the rocking body 2 that swings with respect to the fixed body 1, and the rocking body side shaft pin 6 and the fixed body side shaft pin 9 are connected to each other. The oscillating body side shaft pin 6 and the fixed body side shaft pin 9 are connected by a cross slide connector 10 that is slidable relative to the same and absorbs changes in the intersection angle between the oscillating body side shaft pin 6 and the fixed body side shaft pin 9. Features a rocking body support structure.