JPS5910239Y2 - Lock breaker for mounting on trolley - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a rock braking force mounted on a trolley for drilling and crushing rock with a single drifter.

Splitting large rocks into small pieces is usually done using dynamite or powerful blows, but a low-pollution method involves first drilling a hole in the rock with a boring machine and then crushing it with a rock splitter. .

In this case, accurately inserting the rod of the lock splitter into the drilled hole formed by the drilling machine required skill and was also a dangerous task.

For this reason, in Japanese Patent Application Laid-open No. 48-83003 or No. 52-23503, both the drilling machine and the lock splitter are installed on a swing arm, and the swing arm is attached to a self-propelled cart, so that the rod can be inserted easily. Works quickly and easily.

However, when a punching machine and a lock splitter are mounted on a single self-propelled cart at the same time, the total loading weight increases, and the mounting pins and holding parts are subject to severe wear and tear during the splitting process, which tends to cause looseness. There is a certain limit to the performance of the machine due to the limited weight it can carry.

Also, from the point of view of equipment costs, the cost of both machines themselves and the installation cost of the swivel arm are added together, which is not advantageous.

The purpose of this invention is to provide a rock braking force mounted on a trolley that can perform accurate rod insertion operations similar to the above-mentioned device, and can also drill and crush rock using only one drifter.

In order to achieve this purpose, the lock braking force according to this invention includes a rifle bar type drifter that is slidably installed on the guide cell, a perforated rod whose drifter insertion part has at least a partially irregular cross section, The drifter insert consists of a wedge rod with a circular cross section.

Next, an embodiment of this invention will be described based on the drawings.

Figures 1 and 2 show a lock breaker 2 according to this invention.
The lock brake force allows the drifter 4 to be slidably installed on the guide cell 6.

The guide cell 6 has an elongated plate shape, and a feed motor 8 is installed at its upper end, and a centralizer 10 for supporting the rod is installed at its lower end.

A sprocket (not shown) is fixed to the rotating shaft of the motor 8, and the sprocket meshes with a chain 12 attached to the drifter 4.

The conduit 14.14 supplying fluid to the feed motor 8 is
By connecting to a suitable remote control device (not shown), the feed motor 8 can be operated in the normal or reverse direction by operating the device.

Therefore, due to the rotation of the feed motor 8, the drifter 4
can be moved forward or backward.

Furthermore, instead of the feed motor 8, a guide cell may be used in which a hydraulic cylinder is installed, and in this cylinder a piston rod is attached to a drifter.

The specific shape of the drifter 4 used in this invention is shown in FIG. 3, and the drifter itself is a known one.

A ratchet 16 is disposed at the upper end of the inside of the drifter 4, and a rifleper 18 located at the vertical center can be rotated in only one direction by a rotation pole (not shown) that engages with the ratchet 16.

A valve 22 is installed below the ratchet 16 via a valve force bar 20, and the rifle 18 extends downward through the center of the valve 22 to the position of the exhaust 24.

On the other hand, the piston 26 is integral with a rifle nut 28, which fits into a helical groove of the rifle par 18.

The piston 26 and the sleeve nut 30 are splined together, and the sleeve nut is integrally connected to the bushing 34 via the sleeve 32.

Further, the blow tube 35 extends from the center of the upper end of the drifter 4 through the center of the rifle par 18 and the piston 26 to the center hole 36 of the bushing 34.

The center hole 36 of the bushing 34 has a modified cross-section, for example a hexagonal cross-section, into which a drilling rod or wedge rod (indicated by a chain double-dashed line in FIG. 3) is inserted and held by a steel holder 38 (see FIG. 3). (See Figure 2).

The steel holder 38 is located at the outer front end of the drifter 4,
Can be easily rotated.

A drilling rod 39 is illustrated in FIGS. 1 and 2, the front part of which is supported by the centralizer 10, and
The rear shank portion of the rod is the drifter insertion portion.

The specific shape of the drilling rod is shown in FIGS. 4 and 5.

The drilling rod shown in FIG. 4 is an insert rod 40, and the tip of the rod is a bit portion 42.

The rear shank portion 44 of the insert rod 40 has an irregular cross-section, for example a hexagonal cross-section, and this cross-sectional shape is similar to that of the drifter 4.
This corresponds to that of Butsing Okishin Hole 36 (see Figure 3).

Further, the front end of the shank portion 44 has an annular flange portion 46 having a large diameter, and the shank portion 44 has an annular flange portion 46 with a large diameter.
It can be held with a steel holder 38.

Since the insert rod 40 is hollow, when the rod is attached to the drifter 4, compressed air or water can be ejected from the small hole 47 of the bit part 42 through the blow tube 35, removing rock powder from the hole during drilling. Let it drain.

The drilling rod shown in FIG. 5 is a tapered rod 48.

The tip 50 of the tapered rod 48 is tapered,
Various taper bits (not shown) are attached here.

The rear shank portion 51 and annular collar portion 52 of the tapered rod 48 are similar to those of the insert rod 40.

The tapered rod 48 is also hollow and compressed air or water can be blown out through the blow tube 35 and the rod 48 through a small hole in the bit attached to the rod.

The drilling rod used in this invention has various shapes other than the rods shown in Figures 3 to 5, and the rear shank part of the rod is not entirely shaped as shown in the figure, but only a part of it is shaped differently. It may also be a cross section.

On the other hand, a wedge rod 54 is illustrated in FIG. 6, and a rear shank portion 56 of the rod is a drifter insertion portion.

The rear shank portion 56 has a circular cross section, and its outer diameter is determined according to the shape of the irregular cross section of the bushing offshore center hole 36 of the drifter 4.

For example, if the cross section of the bushing center hole 36 is hexagonal, the diameter of the inscribed circle of the hexagon is the diameter of the rear shank portion 5.
Almost equal to the outer diameter of 6.

The forward end of the shank portion 56 has a large diameter annular collar 58 similar to that of a piercing rod.

In addition, a bottomed hole 60 is provided in the center of the rear end surface of the shank portion 56, and by fitting the heblow tube 35 into the hole, the wedge rod 54 can be easily attached to the drifter 4 (see Fig. 3). ).

The front portion 62 of the wedge rod 54 has a tapered wedge shape.

Wedge rod 54 is used in conjunction with a pair of serpentine arrows 64, 64 as shown in FIG.

The flat inner surface 66 of the serpentine arrow 64 is inclined downwardly and slightly inwardly, and the outer circumferential surface 68 of the harrier arrow 64 has a slightly larger diameter from the upper part to the lower part.

Although not shown, it is preferable that the serpentine arrows 64, 64 are held in the wedge rod 54 or the guide cell 6 by a suitable holder, which is convenient because the holder prevents the serratus 64 from falling under the crushed rock when the rock is crushed. be.

The lock breaker 2 shown in FIGS. 1 and 2 is mounted on a movable trolley 72 of a bridge 70 as shown in FIG. 8 by fixing a bracket (not shown) to the movable trolley 72. .

Furthermore, the lock breaker 2 may be mounted on a self-propelled vehicle, such as a power shovel 74 shown in FIG. Installing.

Next, in order to explain how to operate the rock breaker 2 according to this invention, consider a case where a bridge 70 shown in FIG. 8 is installed in a quarry.

In this case, the bridge 70 is installed on a large jaw crusher (not shown) for crushing rocks.

When the large rock 78 bites into the input port of the crusher and the crusher stops, the movable cart 72 is remotely controlled to position the rock breaker 2 on the rock 78.

At this time, a drilling rod, for example, an insert rod 40 is attached to the drifter 4 with a playing force of 2.

That is, the rear shank portion 44 of the insert rod 40
is fitted into the center hole 36 of the bushing of the drifter 4, and the rod is held by a steel holder 38.

Compressed air is fed into the blow tube 35 of the drifter 4 and is blown out from the tip of the insert rod 40.

Furthermore, when compressed air is separately fed into the drifter 4, the compressed air passes through the valve 22 and acts above the piston 26 to lower the piston and strike the insert rod 40.

In this case, the rifleper 18 spins idly.

When the piston 26 descends, the valve 22 switches, compressed air acts below the piston 26, and compressed air above the piston is discharged from the exhaust 24.

As a result, the piston 26 rises, but at this time the rifleper 18 remains stationary due to the ratchet 16.

Then, the piston 26 rotates along the helical groove of the rifle par 18, and this rotational force is applied to the sleeve nut 3.
0 and the sleeve 32 to the bushing 34.

As the insert rod 40 rotates with the bushing 34, it punctures the rock 78 by striking and rotating.

As drilling progresses, the feed motor 8 moves the drifter 4 down along the guide cell 6 to form a drilling hole 80 in the rock 78 (see FIG. 7).

When the drilling is completed, the feed motor 8 is reversed to return the drifter 4 to the upper end of the guide cell 6.

Next, insert rod 40 is removed by operating steel holder 38 and centralizer 10, and wedge rod 54 is attached to drifter 4.

Then, a pair of serpentine arrows 64 , 64 are fitted into the perforated holes 80 , and the drifter 4 is lowered to insert the front portion 62 of the wedge rod 54 between the serpentine arrows 64 , 64 , or the serpentine arrow 64 is inserted into the wedge rod 54 . ．． 64 is inserted into the punched hole 80 (see FIG. 7).

When the supply of compressed air to the blow tube 34 is stopped and compressed air is supplied only to the drifter 4, the piston 26 moves up and down and strikes the wedge rod 54.

However, the rear shank portion 56 of the wedge rod 54
Since the piston 26 has a circular cross section, the rotational force of the piston 26 is transmitted to the bushing 34 but not to the wedge rod 54.

Therefore, a force is applied by the wedge rod 54 in the direction of expanding the drilled hole 80, thereby crushing the rock 78.

The crushed rock enters the crushing chamber through the input port of the crusher.
It is further crushed by the crusher.

Using the lock braking force of this invention, the wedge rod can be inserted accurately without having to align the axes of the drilled hole and the wedge rod.

Therefore, the work of dividing the rock into small pieces becomes faster, and even non-skilled workers can easily perform the work.

In addition, since this design uses a single drifter to drill and crush the rock, it is clearly advantageous in terms of equipment costs compared to the conventional case where a driller and rock splitter are used separately. It is.

Moreover, since the lock braking force of this invention does not require special parts other than replacing the wedge rod with a punching rod, there is no fear that the playing force will become unusable due to wear and tear on such parts.

[Brief explanation of the drawing]

1 and 2 are a plan view and a side view of the lock brake force for mounting on a trolley according to this invention, and FIG. 3 is a central longitudinal cross-sectional view of the drifter used in this invention, showing only the rifle bar partially cut away. Figures 4 and 5 are side views of the drilling rod used in this invention, Figure 6 is a side view of the wedge rod used in this invention, and Figure 7 shows the state in which the arrow is fitted into a hole in a rock. Fig. 8 is a side view showing the lock brake force of this invention mounted on a movable carriage of a bridge, and Fig. 9 is a side view showing the lock brake force of this invention mounted on a power shovel. . 2... Lock breaker, 4... Drifter, 6... Curved guide cell, 18... Rifle bar, 34... Bushing, 38...・・・
・Steel holder, 39. 40...Curved perforation rod, 4
2... Bit part, 44... Curved rear shank part,
46... Curved annular collar portion, 54... Wedge rod, 56... Curved rear shank portion, 58... Annular flap portion, 64.64... Serial arrow, 7o...Song bridge, 72...Moving trolley, 74...Pashobenore.

Claims (2)

[Scope of utility model registration request] 1. A lock braking force for installing one drifter for normal drilling in a slidable manner on a guide cell, the drilling rod having a drifter insertion part having at least partially an irregular cross section, and a drilling rod having a drifter insertion part having an irregular cross section at least partially. A wedge rod with a circular cross section corresponding to the inscribed circle is provided.When cutting rocks into small pieces, first attach a normal drilling rod to the drifter and drill a hole in the rock by impact and rotation, then attach the rod to the drifter. A rock braking force for mounting on a trolley, characterized in that the drilling rod in the rock is replaced with a wedge rod for crushing, and rocks are crushed only by impact. 2. The lock braking force according to claim 1, wherein a bracket is fixed to the guide cell, and the bracket is attached to a movable truck or a self-propelled truck of a bridge.