JPS6293127A - Excavator - Google Patents

Abstract

PURPOSE:To absorb shocks given to an excavating means by providing a pivotable hinge and a hydraulic jack between a frame body for guiding a transfer means of loads from the excavating means and a backet elevator for transferring the loads from the transfer means. CONSTITUTION:A rake system transfer means 9 secured fixedly to a screw system excavating means 8 is guided by a frame body 13 to transfer a rake in the direction of arrow A2, transfer upward excavated 8 loads and dump them into a chute 7. The upper end of a frame body 13 is pivotably connected to a housing 3 of a backet elevator 2 through a support member 12 by a pin 15 to vary a inclination angle theta. A hydraulic jack is provided between a bracket 29 of the frame body 13 and a bracket 28 of the elevator 2. Also, two brackets are provided respectively on both side surfaces of the frame body 13 and a hydraulic jack is provided between said two brackets. Thus, shocks given to the excavating means 8 are absorbed so that the excavating means 8 can cope with the inclination of ship bottom. This means 8 is suited for landing loads stacked in bulk on a hold.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a drilling device suitably used, for example, when excavating cargo loaded in bulk on a ship for unloading.6 Background Art Excavation of Prior Art Among the devices, for example, a continuous seven-channel system was used to unload cargo loaded in bulk on a ship. This conventional continuous unloader is equipped with a packet elevator at the tip of a boom connected to a drive mechanism on a quay where a ship is moored. An upper end of a rake type conveyor is attached to the lower end of the packet elevator, and a screw type digging means is attached to the lower end of the rake type conveyor. In the prior art, the packet elevator, rake conveyor and screw excavation means were fixed to each other.

When using such a continuous unloader to excavate and unload cargo loaded in bulk on a ship, the screw type excavator is moved into the hold by rotating the boom in a horizontal plane or angularly displacing it in a vertical plane. Move into position. The cargo excavated by the screw-type excavation means is transported by a rake-type conveyor toward a packet elevator, transferred to the outside of the ship by the packet elevator, and then sent to a quay by a belt conveyor installed on a boom and unloaded.

Problems to be Solved by the Invention In such conventional continuous seven-wheel drive systems, the packet elevator, rake conveyor, and screw excavation means were fixed to each other. Therefore, when the boom is swung or angularly displaced as described above to move the screw-type excavation means to a predetermined position on the vessel, or when the boom is moved in a horizontal plane while performing an excavation operation, Excessive force was applied to things such as packet elevators when the screw excavator collided with a wall or the bottom of a ship.

SUMMARY OF THE INVENTION An object of the present invention is to provide an excavating device that solves the above-mentioned problems and can prevent excessive force from being applied to the main body during operation of the excavating device.

Means for Solving the Problems The present invention provides: an excavating means; a conveying means fixed to the excavating means and conveying the load from the excavating means upward; a main body for conveying the load from the fine conveying means; and a conveying means. a guide means for guiding the conveyor in the longitudinal direction thereof; a hinge means for connecting the proximal end of the guide means to the main body and allowing angular displacement about an axis perpendicular to the longitudinal direction of the conveyor means; The excavation device is characterized in that it includes a first buffer means provided between the conveyance means and the guide means, and a second rIL shock means provided between the conveyance means and the guide means.

The present invention also provides: an excavating means; a conveying means that is fixed to the excavating means and conveys the load from the excavating means upward; a main body that conveys the load from the conveying means; and a guide that guides the conveying means in its longitudinal direction. means for connecting the proximal end of the guiding means to the main body and allowing angular displacement about an axis perpendicular to the longitudinal direction of the conveying means; An excavation characterized by comprising: a shock means; a second buffer means provided between the conveyance means and the guide means; and means for supporting the axis of the excavation means so as to be angularly displaceable with respect to the vertical axis. It is a device.

Function: Excavation according to the present invention! At position c, the load is excavated by the excavating means and conveyed upwardly by the conveying means. The load from the conveying means is transferred by the body. Also provided is a guide means for guiding the conveying means in its longitudinal direction. When a force is applied to the digging means, the guide means is angularly displaced via the hinge means about an axis perpendicular to the longitudinal direction of the conveying means. Further, a first buffer means is provided between the guide means and the main body. The guiding means and the conveying means are therefore angularly displaced about said axis along a perpendicular direction. Therefore, the impact force on the excavation means is reduced to #IL. Further, the conveyance means is guided in its longitudinal direction by a guide means, and a 1m-th guide means is provided between the buffer means and the guide means. That is, the tjt% means can be displaced within the guide means along its longitudinal direction, again making it possible to buffer impact forces applied to the excavation means.

Also provided are means for supporting the excavation means for angular displacement relative to the vertical axis. Therefore, the excavating means can oscillate in response to the accumulation state of the cargo to be excavated, and can perform an efficient excavating operation.

Embodiment FIG. 1 is a front view of a portion of a continuous unlobe 1, which is an excavation device according to an embodiment of the present invention, FIG. 2 is a left side view of FIG. 1, and FIG. 3 is a cutaway of FIG. 1. It is a sectional view seen from plane line [1-I[[. The configuration of the continuous unloader 1 will be explained with reference to FIGS. 1 to 3. The continuous unlobe 1 is
For example, it is used when unloading cargo such as powder and loose materials from the hold of a ship moored at a quay. In such a continuous unloader 1, the main body, for example, a packet elevator 2, is attached to the tip of a boom installed on a girder member that moves point-to-point on a quay wall, and is rotatable around an axis extending in the vertical direction, and can be rotated up and down. It is provided so that it can be displaced in the direction. In the hashing 3 of such a packet elevator 2, pulleys 4 are provided at the upper and lower ends thereof. A large number of packets 6 are provided at intervals on the belt 5 which is passed around the pulley 4.

A chute 7 is provided near the upper end of the housing 3,
Excavated by screw type excavation means 8, rake type conveyance means 9
The cargo conveyed in is carried out into the housing 3 of the packet elevator 2. The cargo inside housing 3 is indicated by arrow A.
It is transported upward by a bucket (bucket) G that travels in one direction.

A pair of locking pieces 10.11 are fixed to the housing 3 near the position where the chute 7 is provided with an interval in the vertical direction. The locking piece 10.11 has a generally L-shaped cross section perpendicular to the longitudinal direction, and is curved with the same radius of curvature from one end to the other end in the longitudinal direction. That is, the locking pieces 10111 sandwich a so-called oval-shaped support member 12, which is a support means, between them.

The rake type conveyance means 9 is surrounded by a frame 13 which is a guide means. A pair of triangular plate-shaped hinge members 13a and 13b are provided at the end of the frame 13 on the housing 3 side, and this hinge means 13a.

13b is attached to the bracket 14 fixed to the support member 12,
The bins are combined by bin 15. The support member 12 also has a cover 6 which covers the vicinity of the upper end of the frame 13 and prevents the load from scattering when the load conveyed by the rake-type fine feeder Fi9 is transferred to the chute 7 as will be described later.
2 is provided.

Both ends of the bottle 15 are fixed to a pair of support pieces 16 and 17. The support piece 16.17 extends upward in parallel with the housing 3 of the packet elevator 2, and its upper end is connected to a hydraulic ring 18.19 extending in a direction perpendicular to the axis of the packet elevator 2 (perpendicular to the plane of the paper in FIG. 1). be done.

The mutually facing ends of the hydraulic cylinders 18 and 19 are fixed to brackets 20 provided on the housing 3. The hydraulic cylinders 18, 19 are configured to resiliently dampen displacements of the support piece 16, 17 in the left-right direction in FIG. 2. Therefore, when the support member 12 is angularly displaced around the fitting piece 21 that is angularly displaceably fitted to the housing 3, the hydraulic sills 18 and 19 prevent excessive force from acting on the packet elevator 2 and the like. Prevented.

Near the end of the rake-type conveying means 9 on the packet elevator 2 side, a drive shaft 23 is provided which is rotationally driven by a drive VC device 22 . A chain (not shown) that is passed around the drive shaft 23 and is driven to run is passed through the rotating shaft 24 of the screw type excavation means 8, and a large number of rakes 25 are arranged at intervals on the chain. is driven to travel in the direction of arrow A2, and the screw 26 and side cutter 27 of the screw type excavating means 8 are driven to rotate in the direction of arrow A3.

At 11n of the bracket 28 provided on the housing 3 of the packet elevator 2 and the bracket 29 provided on the frame 13, a hydraulic jack 30, which is a first buffer means, is provided. The hydraulic jack 30 allows the screw-type excavation means 8, the rake-type conveyance means 9 and the frame 13 to be angularly displaced around the bin 15, and is provided to the screw-type excavation means 8 from below in FIG. And so on! I
I will attack the impact force etc.

Brackets 33, 34 are provided on both side walls 31, 32 of the rake-type conveying means 9, respectively. Further, brackets 35 and 36 are provided on both sides of the frame 13, and a hydraulic sill 37 and 38, which is a 241st impingement means realized by, for example, a double-acting sill, is connected between the brackets 33, 35: 34, 36. be done. This hydraulic shilling 37.38
When the rake-type conveyance means 9 is reciprocated in the direction of arrow A4 in FIG.
Prevent excessive force from being transmitted to etc.

FIG. 4 is a simplified exploded perspective view of the rake type fine feeder Fi9 and the frame body 13. The screw type excavating means 8 excavates the load, and the excavated load is conveyed in the direction indicated by arrows A5 and A6, that is, near the center of the screw type excavating means 8 in the axial direction, and collected.

The collected cargo is transported in the direction of arrow A2 by the rake-type transport means 9. Further, brackets 39 to 42 are provided on both gA portions of the rake type conveyance means 9, and the frame body 13 is provided with brackets 39 to 42.
Guide rods 43 and 44 provided on both sides of the guide rods are inserted therethrough. By means of the brackets 39 to 42 and the guide rods 43 and 44, the rake type conveying means 9 can be guided by the frame 13 and reciprocated in the direction of arrow A4 as described above.

FIG. 5 is a simplified perspective view showing the structure of the support member 12 and its vicinity. The configuration related to the support member 12 will be described in more detail with reference to FIG. ptS5. As described above, the support member 12 is held between the locking pieces 10 and 11 so as to be angularly movable around the fitting piece 21.

#S6 is a sectional view illustrating the operation of the screw type excavating means 8. Referring to FIGS. 1, 5, and 6, the bottom 46 of the ship 45 is not limited to a single plane, but is formed with irregularities having various inclinations.

Therefore, when realizing this embodiment, the screw type excavation means 8 comes into contact with the ship i4G, and from the horizontally extending state shown by the solid line in FIG.
Angular displacement follows the shape of 14G.

That is, when the screw-type excavation means 8 is about to make an angular displacement, the support member 12 to which the screw-type excavation means 8 is attached to the frame 13 is angularly displaced about the fitting piece 21, and the screw The excavation means 8 can be angularly displaced as described above. Therefore, all of the cargo accumulated on the ship's bottom 46 can be efficiently excavated and transported along the ship's bottom.

FIG. 7 is a sectional view illustrating the operation of the continuous unloader 1. A boom 49 is attached to a girder member 48 erected on the quay 47. The boom 49 is angularly displaced in the direction of arrow A7 in the vertical plane by a drive mechanism 50 provided on the girder member 48, and is angularly displaced in the direction of arrow A7 in the horizontal plane, centered around the girder member 48.
It is driven to rotate along the direction perpendicular to the paper plane of FIG. Further, the boom 49 is supported by a hydraulic gloss 51 attached to the girder member 48 so as to be freely angularly displaceable within a vertical plane.

This hydraulic jack 51 supports the weight of the boom 49, the packet, the elevator 2, the rake-type transport means 9 and the screw-type excavation means 8, for example approximately 100 tons.

The conventional continuous unloader has a screw type excavation means 8.
and a rake-type conveyance means 9 are integrally fixed with the packet elevator 2. Therefore, in order to change the position of the screw-type excavation means 8 and the rake-type conveyance means 9, a hydraulic cylinder 51 and a drive 8 are required. ! This was due to the above-described operation of the structure 50.

On the other hand, in this embodiment, in relation to the screw type excavation means 8 and the rake type conveyance means 9, a buffer means such as the hydraulic sill 30 as described above is provided between these and the packet elevator 2. , these can be displaced relative to the packet elevator 2. Therefore, the screw type excavation means 6 and the rake type conveying means 9
The drive position that performs the displacement supports the weight of about 5 tons of the screw type excavation means 8 and the rake type conveyance means 9,
and displacement. Therefore, the drive mechanism can be simplified and downsized.

Figure 8 shows screw type excavation means 8 and rake type fine feeder B.
9 is a sectional view showing a configuration related to fjS
8 is a right side view of FIG. 8. FIG. The configuration of the screw type excavation means 8 and the rake type conveyance means 9 will be explained with reference to FIGS. is provided. Subrocket wheel 58. Go is rotationally driven by a drive shaft 23 having a horizontal axis. Furthermore, the sprocket wheels 59 and 131 are commonly coupled to a rotating shaft 24 having an axis parallel to the axis of the drive shaft 23.

Sprocket wheels 58, 59; 60, 61 include
Endless chees 264 and 65 are wrapped around each other. For example, a plurality of rakes 6G are attached to the endless check 264.65. They extend perpendicularly to G5 and are attached parallel to the axis of the drive shaft 23 at intervals.

As the sprocket wheels 58 and 60 of the drive shaft 23 are rotated in the direction of the arrow C1, the unthreaded chain 6
4°65 travels in the direction of arrow A2. Therefore, the load 67 in front of the rake type conveyance means 9 is scraped off by the rake 66 and conveyed in the direction of arrow A2.

Here, a gap of length δ is provided between the boat bottom 68 and the lowest end of the rake 66 by a back plate 69, so that the rake 66 is configured not to come into contact with the boat bottom 68. Further, the back plate '69 is provided at the lower end of the casing 57, and can scrape up the cargo 67 that has thinly accumulated on the bottom 68 of the ship.

A pair of support plates 70 are provided between the drive shaft 23 and the rotation shaft 24.
．． Supported by 71. These support plates 70 , 71 are provided outside each sprocket wheel 58 - 61 with respect to the axial direction of the drive shaft 23 and rotation shaft 24 .

The support plates 70, 71 are also fixed to the casing 57 of the rake-type conveying means 9.

The rotation shaft 24 extends further axially outwards than the support plate 70.71, and a drum 72.73 is provided coaxially therewith. This drum 72, 73 has a blade 7 having a shape as described below.
4 are provided respectively.

The casing 57 of the rake-type conveyance means 9 has a side plate 75.7.
6 and a bottom plate 77. The support plates 70, 71 mentioned above are disposed inside the side plates 75, 76. A wheel support 78.79 that freely supports the rotating shaft 24 is fixed to the lower end of the support plate T0.71. Rotating shaft 24
axially outward from the drums 72 and 73, respectively.
Side cutters 27a, 27l) (collectively referenced 27) are provided. These side cutters 27a, 27b are provided, for example, along the direction in which mutually orthogonal diameter lines of the rotating shaft 24 extend.

When the screw type excavating means 8 is moved in the direction of excavating the load 68 by the side cutters 27a, 27b, the load 67 excavated by the side cutters 27a, 27b is moved in the direction of the rake type conveying means 9. The side cutters 27a, 271) are fixed to the rotating shaft 24, and the blade 74 is fixed to the drum 72, 73.

That is, when the rotating shaft 24 is rotationally driven in the direction of the arrow C1 and the screw type excavating means 8 moves in the direction of the arrow D3, the blade 74 fixed to the side cutter 27a and the drum 72 is rotated.
The cargo 68 excavated by is transported in the direction of arrow D2. Further, when the load 68 moves in the direction of arrow D4, the load 68 excavated by the b1 side cutter 27b and the blade 74 fixed to the drum 73 is conveyed in the direction of arrow D1.

The cargo 68 transported in this way is transferred to the rake type transport means 9
The paper is conveyed in the direction of arrow A2 in FIG.

In the embodiment described in a, a self-propelled scraper may be used instead of the packet elevator 2, that is, the self-propelled scraper includes a screw type excavation means and a rake type conveying means. The cargo excavated, collected and transported by these methods is collected by a belt hoist or the like provided on the self-propelled scraper in an area directly below the hatch in the hold where the excavation operation is being performed. The collected cargo is unloaded by, for example, a packet elevator. With such a configuration, it is possible to obtain the same effects as those described in the above-mentioned embodiments.

Effects According to the present invention as described above, the cargo is excavated by the excavating means and transported upward by the transporting means. The load from the conveying means is transferred by the body. At this time, a guide means for guiding the conveyance means in the longitudinal direction thereof, and a hinge means for connecting the proximal end of the guide means to the main body and enabling angular displacement around an axis perpendicular to the longitudinal direction of the conveyance means are provided. Ta. * A first buffer means is provided between the guided guide means and the main body,
A 21st and opposing means is provided between the conveying means and the guiding means.

Therefore, even if the excavating means collides with, for example, the wall of a hold where cargo is piled up during an excavating operation, the excavating means, the conveying means, the guiding means, and the main body can be mutually displaced. These displacements are performed elastically by the first and second buffer means 111i.

Therefore, the impact force on the excavating means etc. is buffered and can be prevented from being directly transmitted to the main body. Therefore I! 1
It was possible to prevent excessive force from acting on the entire ffIl equipment, and the operability of the drilling equipment was significantly improved.

Further, means for supporting the axis of the excavating means so as to be angularly displaceable with respect to the vertical axis is provided. Therefore, even if the inclination of the surface of the load or the bottom of the ship being excavated changes, the excavating means can follow this inclination and perform the excavating operation, which greatly improves excavation efficiency and improves excavation efficiency. gc
The operability of the machine has also been greatly improved.

[Brief explanation of drawings]

FIG. 1 is a front view of a portion of a continuous unlobe 1 according to an embodiment of the present invention, FIG. 2 is a left side view of FIG. 1, and FIG. 4 is a simplified exploded perspective view of the rake-type conveying means 9, and FIG. 5 is a 14J! ! FIG. 6 is a sectional view illustrating the operation of the screw type excavation means 8, FIG. 7 is a front view showing the overall configuration of the continuous unlobe 1, and FIG.
9 is a cross-sectional view showing a structure related to the rake-type fine feeder 929, and FIG. 9 is a front view showing a cross-section of a structure related to the screw-type excavation means 8. DESCRIPTION OF SYMBOLS 1... Continuous unrobe, 2... Packet elevator, 8... Screw type excavation means, 9... Rake type conveyance means, 10.11... Locking piece, 12... Support member, 13... Frame body, 18, 19, 37. 38...Hydraulic shilling, 43.44...Guide rod, 51...Hydraulic jack, 67...Load, 69...Pack plate agent Patent attorney Number of strokes Keiichi Figure 2 Figure N3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 9

Claims (2)

[Claims] (1) An excavation means, a conveyance means fixed to the excavation means and for conveying the load from the excavation means upward, a main body for conveying the load from the conveyance means, and a guide means for guiding the conveyance means in its longitudinal direction. , a hinge means for connecting the proximal end of the guide means to the main body and capable of angular displacement about an axis perpendicular to the longitudinal direction of the conveying means; a first buffer means provided between the guide means and the main body; . An excavation device comprising: a second buffer means provided between the conveyance means and the guide means. (2) an excavating means; a conveying means fixed to the excavating means and conveying the load from the excavating means upward; a main body for conveying the load from the conveying means; and a guide means for guiding the conveying means in its longitudinal direction. , a hinge means for connecting the proximal end of the guide means to the main body and capable of angular displacement about an axis perpendicular to the longitudinal direction of the conveying means; a first buffer means provided between the guide means and the main body; An excavation device comprising: a second buffer means provided between the conveyance means and the guide means; and means for supporting the axis of the excavation means so as to be angularly displaceable with respect to the vertical axis.