JPS5840277A - Vibration crusher - 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 The present invention relates to a breaker-like vibration crusher for crushing concrete, rock, asphalt, and the like.

This type of vibration crusher usually uses a chisel supported by the vibration crusher body to drive it into the material to be crushed by violently striking it with a piston driven by fluid pressure inside the vibration crusher body.
It is a machine that creates cracks in the material to be crushed and crushes it.It is generally used by being attached to the arm of a shovel-type excavator.

For this reason, during use, intense noise, mainly the sound of metal tapping, causes pollution problems.

Therefore, there has been a strong desire to develop a vibratory crusher that can perform low-noise construction.

In response to the above-mentioned needs, this invention provides a vibration crusher that can perform crushing work with low noise, and has a soundproof and vibration-absorbing layer on the inside of the wall and a butt hole in the bottom. An outer casing, a vibration crusher main body that can be freely loaded into the outer casing, an inner cap that covers the top of the vibration crusher main body that is charged into the outer casing, and a lid that closes the upper end opening of the outer casing. It is characterized in that it includes a donut-shaped elastic plastic member inserted between the body and the inner cap, and has a mechanism for absorbing and mitigating noise generated from the vibration crusher within the outer casing.

Next, the vibration crusher of the present invention will be explained by way of examples with reference to the drawings.

FIG. 1 shows an embodiment of the vibration crusher of this invention.

It is shown in a perspective view of the exterior as seen from diagonally above the dorsal side, below, Fig. 2 is a rear view, Fig. 3 is an enlarged vertical cross-sectional rear view of the upper part with the lid removed, and Fig. 4 is the third In the cross-sectional view of Figure IV-■,
Fig. 5 is an enlarged plan view of the outer casing excluding the lid, Fig. 6 is an enlarged vertical rear view of the lower part of the outer casing, and Fig. 7 is an enlarged plan view of the outer casing excluding the lid.
- Each is shown in a sectional view taken along the line. As shown in the drawings, the vibration crusher A of the present invention includes a vibration crusher main body 1 (
3 to 7) is inserted into the outer casing 2 from above, and the lid body 3 is attached to the outer casing 2 by tightening the 4th group of bolts and the 5th group of nuts. 1 is sealed in an outer casing 2, and the noise generated from the vibratory crusher main body 1 is absorbed within the outer casing 2, so that the sound emitted to the outside is relatively low and loud. The vibration crusher main body l inserted into the outer casing 2 consists of a wear-resistant synthetic resin plate 6 attached to the inner surface of the lower wall of the outer casing 2, and a wear-resistant synthetic resin plate 6 attached to the inner surface of the upper wall of the outer casing 2. The top and bottom two parts of the outer surface are supported by the plastic synthetic resin plate 7, and can violently slide up and down with an amplitude of about 20 degrees. In this embodiment, the wear-resistant synthetic resin plate 6.7 is fixed by a group of 8 embedded screws and is replaceable.

The top of the vibration crusher body 1 inserted into the outer casing 2 is covered with an inner cap 9 shown in an enlarged perspective view in FIG. 8, and between the inner cap 9 and the lid 3, A solid donut-shaped rubber 10 shown in an enlarged plan view in FIG. 9 and in a longitudinal sectional front view in FIG. 10 is charged as an example of a donut-shaped elastic plastic member.

The rubber 10 is made of a high-quality rubber product such as a tubeless tire for a work vehicle, and a central hole 10 is inserted into the guide protrusion 11 which is erected and welded at the center of the upper surface of the top plate 9A of the inner cap 9.
A'i is fitted, and the compressive force accompanying the vertical vibration of the vibration crusher 1 is received via the inner cap 9'f, and the vibration crusher 1 is compressed and deformed in the vertical, horizontal and composite directions. Absorbs and buffers the vibration of 1.

Note that the guide protrusion 11 has an outer diameter that is similar to the center hole 1 of the rubber 10.
The inner diameter of 0A is also small, and the height is smaller than that of rubber lO, and there are horizontal gripping rods 12 inside.
This is to make it easier to pull out the inner cap 9 upward from inside the outer casing 2.
``By the way, the outer casing 2 is inside the lower end of the square body 13.

As shown in FIGS. 6 and 7, the square box member 14 is fitted and fixed by welding a and bt to form the bottom part, while the adjacent part Q is also attached to the inner surface of the wall part. A plurality of vertical puyu 5 are provided protrudingly arranged at predetermined intervals.

The vertical lip 15 has a length and an attachment position such that its lower end is located slightly above the upper end of the square box member 14, and its upper end is located slightly below the lower limit position of the inner cap 9. The amount of protrusion into the outer casing 2 is such that a sufficient gap is created between the vibrating crusher main body 1 inserted into the outer casing 2 and the vibrating crusher main body 1 inserted into the outer casing 2.

A soundproof and vibration absorbing member 16 is pasted on the inner surface of the wall of the outer casing 2 between each of the IJ plates 15.

The soundproofing and vibration-absorbing member 16 is a multi-layered or single-layered plate-like member whose main components are rubber and metal, and has a thickness of about 2 to 1/3 of the protrusion amount (horizontal protrusion height) of the vertical lip 15. The thickness is such that a sufficient gap can be maintained between the vibration crusher body l and the vibration crusher main body l.

The void S has a nearly completely sealed structure within the outer casing 2, and effectively acts to prevent noise generated from the vibration crusher main body 1 from propagating to the outside.

The lower end surface of the vibration crusher main body 1 inserted into the outer casing 2 is brought into contact with a thick rubber plate 17 which is in contact with the inner surface of the bottom plate portion 14A of the square box member 14.

The bottom plate portion 14A and the rubber plate 17 are provided with nine holes 14B and 1'i'A through which the chisel attachment cap 18 is inserted.

The base of the chisel 19 is fitted into the chisel attachment cap 18, and is supported using a retaining pin (not shown) to prevent it from coming off.

The chisel 19 is a piston (
[not shown] The base end (the upper end inserted into the vibration crusher main body 1) is struck and violently moves up and down, similar to other conventional chisels, but the part exposed outside the outer casing 2 The difference is that a rubber layer 20 is formed between the flanges 19A, 19A provided at predetermined positions, so that a sound-absorbing structure is adopted in which the sound of metal tapping becomes muffled.

On the other hand, the inner cap 9, which is vertically movable within the upper part of the outer casing 2, has abrasion-resistant synthetic resin plates 21 fixed to its west outer surface. Slides into contact with the inner surface of the wall.

A thick rubber plate 22 is attached to the lower surface of the top plate 9A of the inner cap 90 that covers the vibration crusher body 1, so as to buffer contact with the vibration crusher body 1.

Furthermore, on both left and right sides of the inner body 13 of the outer casing 2, lugs 23.23, which serve as connection parts to a shovel-type excavator, are fixed so as to protrude in the rear direction. for,
An accumulator (not shown) storage section 24 is provided.

The vibration crusher A of the present invention having the above-mentioned configuration has a vibration crusher main body 1 inserted into an outer casing 2, and a vibration crusher main body 1
After putting the inner cap 9 on top of the inner cap 9, the donut-shaped rubber 1.0 is placed on the inner cap 9, and then the lid 3 is attached to seal the vibratory crusher main body l inside the outer casing 2.

The outer casing 2 with the vibration crusher main body 1 sealed in this way is attached to the arm of a shovel type excavator, and the chisel attachment base 18 is attached.
Then, insert the base of the desired chisel 190 and support it with a stopper (not shown) to prevent it from coming off, and the chisel 190 is ready for use.

In this state, when the vibration crusher main body 1 is started while pressing the tip of the chisel 19 against the surface of the object to be crushed, for example, concrete, the chisel 19, which is violently struck in the axial direction, bites into the object to be crushed. , cracks are generated in the object to be crushed and the object is crushed.

The vibration crusher body 1 vibrates violently up and down upon startup, and at the same time generates a high-pitched metallic sound as it hits the chisel 19.
and moves the inner cap 9 up and down depending on the amplitude.

The inner cap 9 compresses the donut-shaped rubber lO when rising, absorbs the vibration of the vibration crusher main body 1, and significantly damps the vibration transmitted to the outer casing 2.

Furthermore, while the soundproofing and vibration absorbing members 16 are pasted on the inner wall of the outer casing 2 which has a sealed structure, a gap S is formed between these soundproofing and vibration absorbing members 16 and the vibration crusher main body l, so that the vibration crusher The noise generated from the main body l is the inner body part 13 of the outer casing 2.
It propagates while being buffered by the vibration, and does not resonate in the outer casing 2.

Therefore, the noise transmitted to the outside is a dull hitting sound with high wavelengths cut off, and experimental results have confirmed that the noise is more than 20 horns lower than that of conventional equipment.

In this embodiment, the donut-shaped rubber 10 is a solid rubber with a circular cross-section, but as shown in the cross-sectional view of FIG. Alternatively, the rubber 10 may have a doughnut-like shape with a non-circular cross-section as shown in the cross-sectional view of FIG.
' may be.

In addition, since the four wear-resistant synthetic resin plates 6 in the square box member 14 normally wear out quickly at the front and rear positions, by replacing them with the ones at the left and right positions after using them for a predetermined period, It is possible to significantly extend the service life.

As is clear from the above description, the vibration crusher of the present invention can significantly reduce noise propagating to the outside, and in particular, strongly damps vibrations in the axial direction of the vibration crusher main body and transmits them to the outer casing. Furthermore, the sound-proof and vibration-absorbing layer, which has a strong mutual effect and is made up of the sound-proof and vibration-absorbing material attached to the inner surface of the wall of the outer casing and air gaps, greatly attenuates the generated noise. It has an excellent effect in that it can produce a low, purpling sound that does not contain any noise, and can be operated without fear of generating noise pollution.

[Brief explanation of the drawing]

Fig. 1 is an external perspective view showing an embodiment of the vibration crusher of the present invention, Fig. 2 is a rear view, Fig. 3 is an enlarged longitudinal sectional rear view of the upper part with the lid removed, and Fig. 4 is the third Figure 5 is an enlarged plan view of the outer casing excluding the lid, Figure 6 is an enlarged longitudinal sectional rear view of the lower part of the outer casing, and Figure 7 is a sectional view taken from Figure 6 - ■. 8 is an enlarged perspective view of the inner cap, FIG. 9 is an enlarged plan view showing an example of donut-shaped rubber, FIG. 1O is a longitudinal sectional front view of the rubber shown in FIG. 9, and FIGS. FIG. 3 is a cross-sectional view showing other examples of donut-shaped rubber. In the drawing. A... Vibratory crusher of the present invention, 1... Vibratory crusher main body, 2... Outer casing, 3...
Lid body, 4...bolt, 5...oak),
6.7... Wear-resistant synthetic resin plate, 8... Embedded screw, 9... Inner cap. 9A...Top plate, 10.10', 10
'...Rubber. 10A...center hole, 10'B...hole, 11...
- Guide projection, 12... Grip, 13... Square body part, 14... Square box member, 14A... Bottom plate part,
14B...hole, 15...vertical lip, 16
...Soundproof absorbing and photographing member, 17...Rubber plate, 17
A...hole. 18... Chisel mounting cap, 19... Chisel. 19A...flange, 20...-+' comb layer, 21... wear-resistant synthetic resin plate, 22... comb plate. 23...Lug, 24...Storage section, S.
...Gap, a, b...Welding. Applicant Akihiko Shigemizu Agent Tomi 1) Kazuo → 8 Figure 2 Figure 6 L ■ Figure 7 6 Ashi 8 Figure 9, Figure 11 Figure 12

Claims (1)

[Claims] An outer casing with a soundproof and vibration-absorbing layer on the inside and side of the wall and a chisel insertion hole at the bottom, a vibration crusher main body that can be freely loaded into the outer casing, and a crusher body that can be charged into the outer casing. The vibration crusher includes an inner cap that is placed over the top of the vibration crusher main body, and a donut-shaped elastic plastic member that is inserted between the lid body that closes the upper end opening of the outer casing and the inner cap. This vibration crusher is characterized by absorbing and mitigating the noise generated within the outer casing.