JPH0138732B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a bulky product in which a support structure supports a vertical jib, a separating member is suspended from the lower end of the vertical jib, and a large quantity of products is separated by the separating member and transported to a belt elevator. This relates to unloading machines.

A common drawback of this type of continuously operating marine unloaders is that their construction is not rigid enough. This rigidity cannot withstand vertical forces such as tilting upwards on the separating member of the unloader due to, for example, wave action or operator error. That is, such swinging forces can damage the support structure of the unloading machine, such as the mounting structure and pivot structure of the vertical jib. Such forces can be dangerous for unloader operators who have seats in close proximity to the unloader's separation parts (especially on larger machines).

SUMMARY OF THE INVENTION It is an object of the present invention to eliminate the above-mentioned drawbacks and to provide a bulky goods unloading machine that is durable and easy for the user to handle.

The unloading machine of the present invention has a stationary yoke and a rotating shaft pivotally connected to the vertical jib, and the separating member is rotated to the opposite side of the rotating shaft with respect to the central axis of the lower part of the vertical jib. The stationary yoke is provided with a long lever arm that is horizontally spaced apart from the moving shaft and supports the separation member at one end;
It is characterized in that the stationary yoke is provided with a short lever arm that is pressed against the vertical jib when the separating member is in the lowest position.

With this configuration, even if the ship suddenly rises due to rough waves, for example, and the goods loaded on the ship rise and apply an upward impact to the separating member, the separating member will not rotate. Since the separating member rotates upward about the axis, there is an advantage that the separating member will not be damaged. Furthermore, the separation member can be held by a short lever arm so that it does not fall from a certain height.

Since the separation member is supported so that it can rotate around the rotation axis, it weighs less than conventional unloading machines that are built to be sturdy so that they will not be damaged even if they are shaken by the rolling motion of a ship. This greatly simplifies the structure. A simple structure increases operational reliability, eases handling, and reduces manufacturing costs.

The separating member, which has been raised by the upward impact, gradually descends as the goods loaded on the ship descend, so it is flexible and can extend the life of the unloading machine.

Embodiments of the apparatus of the present invention will be described in detail below with reference to the drawings.

Although it is not clear in the drawings, the support structure of this unloading machine includes, for example, a gantry section that moves along the rails of the wharf, and various members for supporting and moving the upright jib 2 are attached to this gantry section. The various members of the latter are integrally associated with the support structure disclosed herein and are designated by the reference numeral 1. The vertical jib 2 can rotate about its vertical axis 9. This vertical jib is hollow.
An endless belt elevator 7 runs within this jib, which unloads the separating member 3 and transports bulky goods to be further transported to a destination on the quay. A separation member 3 mainly composed of a bucket wheel 10 and a lower end 11 of a belt elevator 7 is attached to a vertical jib 2.
Suspend from the bottom of the. This lower edge is angled so that it occupies a nearly horizontal position. The belt elevator 7 runs on a belt drum 12 at its lower end. The separation member 3 is suspended by a stationary yoke 4 suspended from the lower end of the vertical jib 2 by a rotation shaft 8.

The long lever arm 5 of the stationary yoke 4 is bifurcated and extends across both sides of the separating member 3. A belt drum 12 is attached to one end of this lever arm 5, and a belt elevator 7 is run around this belt drum 12. A bucket wheel 10 is further rotatably supported at one end of the lever arm 5 at 13. That is, one end of the lever arm 5 supports the separating member 3.

The stationary yoke 4 has a further short lever arm 6 on the opposite side of the long lever arm 5, which presses against the vertical jib 2 when the weight of the separating member 3 is applied onto the long lever arm 5. The stationary yoke is prevented from rotating around the rotation axis 8 any further. The separation member 3 is separated from the rotation shaft 8 in the horizontal direction. In the present invention, the pivot shaft 8 is located outside the lower part 14 of the vertical jib 2, and the separation member 3 is located on the opposite side of the pivot shaft 8 with respect to the central axis of the lower part 14.

Due to the relative length and position of these lever arms 5, 6, the separation section 3 with respect to the vertical beam is
The lowest position of is determined. When the lower portion of the separation member 3 is subjected to a turbulence, for example, due to rolling of a ship, the stationary yoke 4 responds elastically by rotating around the rotation axis 8. This is because the force applied downward to the separation member is only gravity and there is no other acting force. At the same time, the short lever arm 6 releases from its holding part and returns when the impact force has passed, and the separating member 3 descends back to its initial position.

It will be obvious to those skilled in the art that other embodiments of the present invention are not limited to the embodiments described above, and that various modifications can be made within the scope of the claims. For example, instead of a bucket wheel, a short chain elevator or the like may be provided in the separation section. Similarly, springs, hydraulic cylinders or other equivalent mechanisms may be provided to prevent separation of the short lever arm from the holding part. This ensures that small impacts will not cause the short lever arm to separate, and separation of the lever arm will only occur in conjunction with more severe flailing, which is even more dangerous to the structure.

[Brief explanation of drawings]

FIG. 1 is a front view of the unloading machine of the present invention, and FIG. 2 is a cross-sectional view of the upper surface of the separated portion and the vertical pipe portion of the unloading machine of the present invention. 1... Member, 2... Vertical jib, 3... Separation member, 4... Stationary yoke, 5... Lever arm, 7
... Belt elevator, 8 ... Rotating axis, 9 ... Vertical axis, 10 ... Bucket wheel, 11 ... Lower end, 12 ... Belt drum.

Claims (1)

[Claims] 1 comprises a support structure 1 supporting a vertical jib 2, and a separating member 3 suspended from the lower end of the vertical jib by a pivotally connected stationary yoke 4, which separates bulky products and transports them to a belt elevator 7. In unloading machines for bulky products that transport and unload cargo,
The rotation shaft 8 on which the stationary yoke 4 is pivotally connected to the vertical jib 2 is located outside the lower part 14 of the vertical jib, and the separation member 3 is rotated around the rotation axis with respect to the central axis of the lower part 14 of the vertical jib. The stationary yoke 4 is provided with a long lever arm 5 which is positioned horizontally apart from the rotating shaft 8 and supports the separating member 3 at one end, and the separating member is at the lowest position. An unloading machine for bulky goods, characterized in that the stationary yoke 4 is provided with a short lever arm 6 that is pressed against the vertical jib 2 when the stationary yoke 4 is in the vertical position.