JPS62124884A - Excavator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION TECHNICAL BACKGROUND OF THE INVENTION This invention relates to excavators, particularly for making excavations in open pit mining of hard rock formations and in civil industrial projects. According to the excavator throughout this specification and claims, the excavator not only crushes the excavated material but also removes the crushed material.

"Technical background of the invention and its problems" In many places, relatively hard layers can be encountered that cannot be removed using conventional excavation techniques. In practical excavation in such hard formations, the explosives are placed in a hole drilled into the hardened formation, and the debris created by the detonation of the explosives is then removed by conventional commercial or mining earthmoving equipment. That's what I do. Techniques such as this are time-consuming and costly due to the risks involved, as well as the drilling and positioning of the explosive, and the earth-moving equipment must be removed from the excavated surface before detonation. After this, I have to go back to create and drill new holes.

``Object of the Invention'' An object of the present invention is to provide an excavator that can relatively continuously crush a hardened layer without the need for crushing using explosives.

rSummary of the Invention According to the present invention, a main frame attached to a traveling vehicle body, an operable power hammer device arranged to crush an excavated object, and a support for supporting the power hammer device on the main frame. An excavator is provided having means.

Embodiments of the Invention As shown schematically in FIGS. 1A and 1B,
The excavator includes a main frame 21 for supporting equipment, and this main frame 21 is attached to a crawler-type traveling vehicle body 10. The traveling vehicle body 10 may be of a wheel type if ground conditions permit. The main frame 21 supports at least one pair of boom sections 11.12, which constitute a boom mechanism controlled by hydraulic cylinders. Hydraulic cylinder 22
is pivotally attached to the outer boom section 12, which is connected to the inner boom section 11 via a pivot shaft 34. The hydraulic cylinder 23 moves the boom portion 11 up and down with respect to the main frame 21 around a pivot (not shown) within the main frame 21 . The outer end of the boom mechanism supports an array of power hammer devices 13, which are supported on a support base 24. This support stand 24 is attached to a pair of support arms 32 spaced apart from each other.

These support arms 32 are pivotally attached to the ends of the boom mechanism via pivots 33. Here, the power hammer device 13 extends across the boom mechanism. A control cylinder 25 is arranged between the outer boom part 12 and the support arm 32 . This control cylinder 25 allows vertical adjustment in the power hammer device 13 .

In order to fracture the hardened layer over the terrace in the face of the excavated material 20, ten or more power hammer devices 13 are required, as shown in FIG.

The power hammer devices 13 may all drive at the same time, or may drive in a predetermined or operator-variable order through appropriate control. As shown in FIG. 2, each power hammer device 13 is arranged across the excavator,
The inclination of the arrangement gradually increases from the one placed in the center to the one placed on the side, so that as the excavation work progresses, the excavated object is Clearance on the surface can be secured. As is clear from FIG. 2, each power hammer device 13 is individually supported on an auxiliary support 35 by a bolt 36 or similar quick-release mechanism, so that each power hammer device 13 is , it becomes possible to reliably and quickly remove and replace the excavator, and it is possible to shorten the setup time of the excavator. The entire support stand 24 and the entire arrangement of the power hammer device 13 are attached to the support arm 32.
It is attached by a removable, preferably quick-removal connection 37.

Thereby, the entire array of power hammer devices 13 can be removed if necessary. In addition, a cushion 38 made of a cushioning material such as rubber is sandwiched between the main body of each power hammer device 13 and each auxiliary support stand 35.

A suitable power hammer device 13 for the purpose of this invention is:
Although expected to be large and durable devices, these power hammer devices are currently available.

As such a power hammer device, for example, HM1600 manufactured by Clap Butey Company, H-30 manufactured by Japan Air Pressure Industry Company, etc.
X, Kaida UB23A2, and Lamar 52000HD.

The crushed material crushed by the power hammer device 13 falls onto the base of the excavated object 200. It is then removed by a scraper plate 14 in the embodiment of FIGS. 1A-6. This scraper blade 14 is supported at the front of the excavator via a pivot 19, and
It can be moved up and down by a hydraulic cylinder 27. The scraper blade 14 is forced under the debris at the base of the object to be cut 20 and this debris is conveyed rearwardly by a zipper conveyor 26 to the main frame 20.
It is discharged into a hopper 15 attached to 1. The drive motor for the zipper conveyor 26 is designated by the numeral 28. Alternatively, the scraper blade 14 may be raised and tilted rearward to discharge the crushed material into the hopper 15 by means such as lobes, chains, hydraulic pressure, or the like. The front edge of the scraper blade 14 may be provided with a plurality of hardened teeth, and the scraper blade 14 may be provided with a hinge together with a sliding plate to retain the crushed material on the scraper blade 14. It is also possible to provide a flap that is attached in a manner similar to that shown in FIG. The scraper blade 14 incorporates a collection arm or suitable mechanism (not shown) to aid in the collection of crushed material.
As shown in the figure, one or more hydraulic cylinders 30 are disposed and mounted between the scraper blade 14 and the main frame 21, and the hydraulic cylinders 30 are mounted under the crushed material. Forcibly push in the scraper blade 14.

The crushed material from the hopper 15 is transferred to the end of the conveying mechanism 16. The conveyance mechanism 16 includes endless conveyor belts 16a (or one wide conveyor belt) arranged laterally within the main frame 21. and,
The transport mechanism 16 transfers the shredded material to a discharge conveyor, which conveys the shredded material to a storage yard or truck or further to a conveyor train. When it is necessary to crush the crushed material into smaller pieces for transportation purposes, the bottom of the hopper 15 is fitted with a crushing device, for example a scroll-type crusher or other similar device. Before discharging the crushed material to the end of the conveying mechanism 16,
This crushed material can be pulverized (see Figure 3).

The mechanism 16 transports the crushed material to the rear of the excavator (see Figure 1B). ! Here, the crushed materials are discharged into the hopper 60, and then the crushed materials are discharged onto the discharge conveyor 8! Transport it to Structure 61. This discharge conveyor mechanism 61 consists of one endless discharge conveyor heald 62. Hopper 6
An ejector conveyor mechanism 61 containing 0 is supported within the frame 63 and extends away from the upper rear of the excavator. The frame 63 is pivotally supported at the rear of the excavator via a rotary table 64. This rotary table 64 allows the discharge conveyor mechanism 61 to rotate (rotate in a horizontal plane). Further, the pivot of the discharge conhair mechanism 61 allows the discharge conhair machine [61] to be raised and lowered.

Referring to Figures 1B, 4 and 6, there is an auxiliary frame 6 at the rear of the excavator for turning and undulation.
5 is attached, and this auxiliary frame 65 extends to the upper rear of the excavator, as shown in FIG. 1B. The auxiliary frame 65 is in turn connected to an additional auxiliary frame 68 by a pivoting and undulating row cable system 66,67, which auxiliary frame 68 is supported on the frame 63 of the discharge conhair mechanism 61.

The swiveling boot row cable mechanism 66 includes a pair of swiveling cables 69. These swivel cables 69 extend on both sides of the excavator from a winding drum 70, which is attached to the main frame 21 of the excavator. Moreover, the turning cable 69 is connected to the auxiliary frame 6
5 and extend around a self-adjusting pulley 71 before reaching an anchor point 72 on an auxiliary frame 68 supported on the frame 63 of the discharge conveyor mechanism 61. .

For example, by rotationally driving the winding tram 70 in the same clockwise or counterclockwise direction, one winding cable 69 is wound around one winding drum 70, and the other winding cable 69 is The winding drum 70 is unwound from the other winding drum 70, thereby allowing the discharge conhair mechanism 61 to be swiveled to one side, and conversely, by reversing the direction of rotation of each winding drum 70,
The discharge conveyor mechanism 61 can be rotated in the opposite direction.

Referring again to Figures 1-B and 4 to 6,
The undulating boob row cable mechanism 67 includes one undulating cable 73. This undulating cable 73 is connected to a winding drum 74 attached to the main frame 21 of the excavator.
and extends from the anchor point 7 of the auxiliary frame 65 over the self-adjusting pulley 75 attached to the auxiliary frame 65 and around the driven boot of the auxiliary frame 68.
It extends to 7. As a result, by winding the undulating cable 73 around the winding drum 74, the discharge conveyor mechanism 61 can be raised, and conversely, by letting out the undulating cable 73 from the winding drum 74, the discharge conveyor mechanism 61 can be raised. It can be laid down.

The self-adjusting pulleys 71 .
The boot 1J78 is rotatably attached to the support yoke 79. This support yoke 79 is supported by a disc 85, which is rotatably held within the housing 8o. A flange 8 extending radially inward from the peripheral edge of the disc 85 and the housing 80
2, a spherical ball row forming a ball hair ring is inserted into the receptacle. And each housing 80
is flexibly attached to the connecting frame 83 by wire lobes 86. This connection frame 83 is supported on the upper part of the auxiliary frame 65 in the case of the undulating boot row cable mechanism 67. A frame 84 for each swing cable 69 constituting the swing boot row cable mechanism 66 is supported on both sides of the auxiliary frame 650.

As shown in FIG. 1A, a control cabin 18 for the excavator-like operator is provided in an elevated position. This allows the operator to monitor and control the power hammer train, the forward movement of the excavator, the scraper blade 14 that collects debris, and also control the tilting of the scraper blade 14 into the hopper 15. It is also possible to operate other equipment on the excavator. An engine room 31 is located in the main frame 21 behind the control cabin 18.
is installed.

FIG. 7 shows a second embodiment of the invention.

The excavator of this second embodiment includes a main frame 39 for supporting the device, and this main frame 39 is attached to a vehicle body 40 that is movable. Note that the vehicle body may be of a wheel type if ground conditions permit. The main frame 39 supports a mast mechanism having a pair of spaced apart masts 41 (only one of which is shown in the side view of FIG. 7). The mast mechanism is controlled by a hydraulic cylinder 42 and rotated relative to the main frame 39. At the lower end of the mast mechanism,
A moving hammer arrangement 13 and support structure similar to that shown in FIG. 3 is supported and is here provided with the same reference numerals. The lower end of the mast is connected to the support structure 24 in the open position to a quickly removable pivot connection 43. A hydraulic cylinder 44 coupled between the mast mechanism and a pivot bracket 45 attached to the pivot arm or support structure 24 then controls the angle of the power hammer array 13 relative to the mast mechanism about the pivot connection 43. can be adjusted. In order to move up and down the mast mechanism and the row of power hammer devices 13 supported by this mast mechanism, each mast 41
It has a pitch chain 46, which extends in the longitudinal direction of the mast 41, and whose upper and lower ends are
upper and lower anchor points) 48.47. Each pitch chain 46 has a drive sprocket 49
Collaborate with. This driving sprocket 49 is connected to the sleeve 5
1, and the mast 41 is inserted through a sleeve 51 and engaged with a guide roller (not shown) within this sleeve 51. When the drive sprocket 49 is rotated while engaged with each pitch chain 46, the mast mechanism is thereby moved up and down. When the hammer tip contacts the surface of the workpiece, downward pressure on the hammer tip is maintained by engagement of drive sprocket 49 and pitch chain 46. Further, the axis of the drive sprocket 49 is provided with a pot point 50 about which the mast and sleeve mechanism is rotated under the action of the hydraulic cylinder 42.

Unlike the excavators of the embodiments shown in Figs.
The excavator shown in the figure bends the top of the object to be excavated, and then uses a row of power hammer devices 13 to drop the crushed material onto the base of the object.

The crushed material is also removed by another suitable collection and transfer device. This collection and transfer device transports the shredded material to a dump or storage site by means of a transport device, truck or conveyor train. When it is necessary to further crush the crushed material for transportation purposes, a device, such as a scroll-type crusher, is positioned at the base of the excavated material and the crushed material is crushed prior to transportation.

As shown, a control cabin 52 for the excavator operator is located at an elevated level, allowing the operator to monitor and control the power hammer train and the operation of the excavator. . The counterweight and engine room section 53 are attached to the main frame 39.

[Brief explanation of drawings]

1A is a front side view of an excavator according to a first embodiment of the present invention, FIG. 1B is a rear side view of the same excavator, and FIG. 2 is an arrow indicated by the line 2-2 in FIG. 1A. 3 is a sectional view taken along line 3-3 in FIG. 1A, FIG. 4 is a plan view of the output conveyor mechanism at the rear of the excavator in FIG. 1B, and FIG. 5 is a sectional view taken along line 3-3 in FIG.
A sectional view taken along line 5-5 in Figure B, Figure 6 is 6 in Figure 1B.
A sectional view taken along the line -6, and FIG. 7 is a side view of an excavator according to a second embodiment of the present invention. 10.40...Vehicle body, 11.12...Boom part, 1
3... Hammer device row, 14... Scraper blade, 16... Conveyor mechanism, 17... Grinding device, 21
．． 39...Main frame.

Claims (1)

[Claims] 1. A main frame attached to a traveling vehicle body, operable power hammer devices arranged to crush an excavated object, and support means for supporting the power hammer device on the main frame. An excavator characterized by the following: 2. The arrayed power hammer device consists of a plurality of hammer units arranged laterally, and these hammer units are inclined at gradually larger angles from the center of the array toward the sides in the longitudinal direction of the array. An excavator according to claim 1, characterized in that: 3. The excavator according to claim 1 or 2, wherein the power hammer device is removably connected to the support means. 4. The excavator according to any one of claims 1 to 3, wherein each hammer unit is removably connected within a power hammer device. 5. The excavator is designed to work above the object to be excavated, and the supporting means comprises a mast mechanism, and the excavator is equipped with a lifting means for raising and lowering the mast mechanism in order to position the power hammer device. Claims 1 to 4, which are
Excavator according to any one of the paragraphs. 6. The excavator according to claim 5, wherein the mast mechanism is configured to move up and down relative to the surface of the object to be excavated. 7. The excavator is adapted to work below the excavated object, and the support means consists of an articulated boom mechanism, which raises and lowers the boom mechanism to position the power hammer device. An excavator according to any one of claims 1 to 4, characterized in that the excavator has a lifting means. 8. The excavator according to claim 7, further comprising means for collecting and transporting the excavated crushed material. 9. The excavator according to claim 7 or 8, characterized in that it is equipped with a crushing device that constitutes a part of means for collecting and transporting the excavated crushed material.