JPS6233832Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a wedge-shaped rock crusher that crushes the rock into which the guide is inserted by inserting a wedge into a guide split into two and expanding both guides. It is something.

As shown in Figures 1 and 2, this wedge-shaped rock crusher has wedge a divided into two guides b and b.
By pushing the wedge a along the guides b, b, the guides b, b expand to the left and right, and the rock c into which the guides b, b are inserted is crushed.

However, in the case of the above-mentioned conventional wedge-shaped rock crusher, as shown in Fig. 2, when the wedge a is pushed in to crush the rock c, the wedge a protrudes from the guides b and b. , the tip of this wedge a may penetrate into the sludge layer that has accumulated in the hole in the bedrock c and be damaged, and debris may adhere to the sliding surface of wedge a and burn between it and the guides b and b. There were problems such as sticking.

The present invention was developed in consideration of the above, and provides a wedge-shaped rock crusher in which a protector is provided at the tip of the guide, and the tip of the wedge that protrudes from the guide can be protected by this protector. This is what I am trying to do.

Embodiments of the present invention will be described below based on FIG. 3 and subsequent figures.

In the figure, 1 is a hydraulic cylinder, 2 is a piston rod extending from a piston fitted into the hydraulic cylinder, and a wedge 3 is connected to this piston rod. 4a,
Guides 4b are provided on both sides of the wedge 3 in the operating direction, and the upper portions of both guides 4a and 4b are supported by a body 6 that supports the hydraulic cylinder 1 via leaf springs 5a and 5b, respectively. The above leaf spring 5a,
5b urges both guides 4a, 4b toward each other. Reference numerals 7a and 7b are side protectors provided on both sides of the guides 4a and 4b and along the opposing portions of the guides 4a and 4b, and the upper ends of these are provided on the side of the leaf springs 5a and 5b with the springs 8a and 8b.
They are connected to each other so that they can move slightly up and down. Further, the lower portions of the side protectors 7a, 7b protrude from the tips of the guides 4a, 4b.

An open end portion of a bottomed cylindrical end protector 9 is fitted into the tips of the guides 4a, 4b.
Both sides of the end protector 9 are connected to the tips of the side protectors 7a and 7b. In addition, the above end protector 9 and both guides 4
The engagement portion with the guides 4a, 4b has spaces 10, 10 in the operating direction of the guides 4a, 4b, and the end protector 9
In contrast, the guides 4a and 4b can be deformed in the expansion direction.

In the above configuration, by inserting the end protector 9 and the guides 4a, 4b into a hole drilled in the rock, and then operating the piston of the hydraulic cylinder 1 to move it downward, the wedge 3 can be attached to the guides 4a, 4b.
It moves downward against. Thus guides 4a, 4b
The guides 4a and 4b are expanded and moved to crush the rock into which the guides 4a and 4b are inserted. At this time, the tip of the wedge 3 is placed closer to the end protector 9 than the tips of the guides 4a and 4b.
The tip is not exposed directly into the rock removal hole and does not come into contact with the sludge inside the hole.

On the other hand, at this time, as mentioned above, both guides 4a, 4
b is expanded and moved by the wedge 3, and both guides 4a,
Although there is a gap between the facing portions 4b, this gap is covered by the side protectors 7a and 7b.

The wedge-shaped rock crusher according to the present invention is as detailed above, and the guides 4a and 4 are divided into two.
By inserting the wedge 3 between b, both guides 4a, 4b are moved to expand, and both guides 4a, 4
In the wedge-shaped crusher that crushes the rock into which the guides 4a and 4b are inserted, side protectors 7a and 7b are placed on both sides of the guides 4a and 4b and along the opposing portions of the guides 4a and 4b, and one end of the side protectors 7a and 7b is guided. 4a, 4b are connected to the body side that supports the guides 4a, 4b, and the open end of a bottomed cylindrical end protector 9 is engaged with the tips of the guides 4a, 4b, and the end protector 9 is connected to the above-mentioned both side protectors. 7a, 7
b, the tips of the guides 4a, 4b are covered by the end protector 9, and the wedge 3 protrudes from the tips of the guides 4a, 4b during rock crushing.
The tip of the blade is protected by the end protector 9, and this part can be prevented from getting stuck in the gap and being damaged, and from getting stuck with sand and dust. Also, the opposing portions of both guides 4a and 4b are provided with side protectors 7.
By being covered by portions a and 7b, it is also possible to prevent dust from entering from these portions. Furthermore, by storing oil in the end protector 9, it is also possible to supply lubricating oil to the tips of the wedges 3 that protrude therein.

[Brief explanation of the drawing]

Figures 1 and 2 are explanatory diagrams of the structure and operation of a conventional example, Figure 3 and the following diagrams illustrate embodiments of the present invention, with Figure 3 being a front view, Figure 4 being a side view, and Figure 5 being a side view. 6 is a sectional view taken along the line - in FIG. 5, and FIG. 7 is a sectional view showing a state expanded from the state shown in FIG. 6. 3 is a wedge, 4a, 4b are guides, 7a, 7b
is a side protector, and 9 is an end protector.

Claims (1)

[Scope of utility model registration request] A wedge 3 is inserted between the two guides 4a and 4b.
In the wedge-shaped crusher, the rock mass into which the guides 4a, 4b are inserted is crushed by expanding the guides 4a, 4b by inserting the guides 4a, 4b.
Side protectors 7 are installed on both sides of the guides 4a, 4b and along the opposing portions of the guides 4a, 4b.
a, 7b, one end of which is connected to the fuselage side that supports the guides 4a, 4b, and the guides 4a, 4
A wedge-shaped rock crusher characterized in that an open end of a bottomed cylindrical end protector 9 is engaged with the tip of the wedge-shaped rock crusher 9, and the end protector 9 is connected to both side protectors 7a and 7b.