JP4955933B2 - Waste crusher for hydraulic excavators - Google Patents

Description

The present invention, indentation, such as the seed waste, crushed, to loading and crusher of waste for the hydraulic excavator to be used for wholesale product.

As shown in FIG. 9, a conventional hydraulic excavator provided with a crusher for waste or the like in a bucket is arranged in a bucket 1 with a rotating drum 2 rotated by a hydraulic motor, and arranged on the rotating drum 2 in a comb shape. a rotary blade 3, which is provided with a fixed blade 4 arranged so as to close between the rotary blade 3, the provided bucket cover 6 can be opened and closed so as to cover the bucket opening 5, bucket cover 6, the Although it was formed to open and close so as to cover the bucket opening 5 in order to pick up the crushed material and prevent the crushed material from scattering from inside the bucket, it is possible to push the crushed material into the bucket and supply it. Since it was not possible, there was a drawback that crushing was insufficient.
The present inventors, as well as to be able to drive the bucket cover provided with four-bar linkage provided with a booster mechanism crusher bucket of waste for the hydraulic excavator, the rear bucket cover in the bucket The bottom wall of the bucket is formed in an arc shape so that it can be rotated and inserted, and the object to be crushed can be strongly crushed by pressing between the rotary blade and the fixed blade to reduce the residue of the object to be crushed. I succeeded in doing so.
JP 2004-66213 A

An object of the present invention is to provide a waste crusher for a hydraulic excavator , which can push a material to be crushed into a bucket strongly and efficiently and finely crush the material .

The waste crusher for hydraulic excavators of the present invention achieves the above-mentioned problem, and, as shown in the figure, the opening 21 for feeding the material to be crushed 50 such as waste and the discharge for discharging the material to be crushed 50 are discharged. A bucket 20 having a portion 22, a rotating drum 11 rotatably supported on both side walls 24 of the bucket 20, and a plurality of the drums that are supported by the both side walls 24 of the bucket 20 and arranged close to the rotating drum 11. A plurality of rotary blades 12 provided so that they can be sequentially fitted to the circumferential surface of the rotary blade 11 with the rotation of the fixed blade 13, and the upper surface of the opening 21 of the bucket 20. A pair of brackets 200 provided on each of them, a bell crank 321 with one end pivotally attached to each bracket 200, a link 322 with one end pivotally attached to the other end of each bell crank 321 and one end pivotally attached to the other end of each link 322. A A four-bar linkage device comprising a cover cylinder 33 having a rod 331 axially attached to a bucket cover 30 fixed to a pair of arms 300 and a pair of bell cranks 321 and a middle portion 3211 of a pair of bell cranks 321; And a bucket bottom wall 23 formed in an arc shape so that it can be rotated and fitted into the bucket 20.
In the present invention, the fixed blade 13 is provided in the axial direction of the rotating drum 11 in the vicinity of the rotating drum 11, but the fixed blade 13 includes a plurality of angled blades as shown in FIGS. As shown in FIG. 8, a flat plate 130 to be formed, or an individual diamond-shaped fixed blade 13B having four chevron-shaped cutting edges or a triangular fixed blade (not shown) having three chevron-shaped cutting edges are used. It made such as to form, in the case of exhaustion, breakage of the fixed blade 13, a flat plate 130 shaped fixed blade 13, via the mounting bolt 132 for each flat 130 can replace the individual triangular fixed blade or diamond-shaped Since the fixed blade 13B has three blade tips for the triangular fixed blade and four blade tips 131B for the diamond-shaped fixed blade 13B, it can be replaced with a new blade tip by loosening and rotating the mounting bolt 132B. Attached to each
Further, as shown in FIGS. 1 and 8 , the rotary blade 12 or 12B is formed in a triangular blade or the like , and is fixed on the circumferential surface of the rotary drum 11 or 11B with the rotation direction of the rotary drum. Alternatively , the rotary blade 12 is attached to the triangular tool post 121 or 121B fixed on the circumferential surface of the rotary drum 11 or 11B with the mounting bolt 120 or 120B so that the trough 131 or 131B of the 13B can be sequentially fitted. Alternatively, 12B is attached so that it can be individually replaced from the tool post 121 or 121B via the mounting bolt 120 or 120B in the case of wear or damage.
In the present invention, the electromagnet 40 is attached to the outer surface of the bucket bottom wall 23 or the outer surface of the side wall 24, and is used for power supply from a power source (not shown) or a battery (not shown) of a hydraulic excavator.
Further, the blade protector 1220 includes a U-shaped body, an I-shaped body, an L-shaped body, a rectangular parallelepiped body and the like surrounding the blade base.
Also, in the present invention, four-bar linkage, as shown in FIGS. 2, 3 and 6, a bracket 200 of the bucket 20 the upper body, the bell crank 321 of the booster mechanism, the link 322, bucket cover 30 is rotatably coupled to each other, and is driven by a rod 331 of a cover cylinder 33 that is pivotally attached to an intermediate portion 3211 of the bell crank 321, and a bucket is attached via a link 322 that is pivotally attached to the tip of the bell crank 321. The cover 30 can be rotated.
Bell crank 321 to expand the driving force of the cover cylinder 33 with transmit link 322, it is formed so as to rotate the tip of the bell crank 321 is increased, you strongly pushing force of the bucket cover 30 At the same time, the rotation angle of the bucket cover 30 is increased, and together with the bucket bottom wall 23 formed in an arc shape, the tip of the bucket cover 30 can be pushed into the back of the bucket 20.

The waste crusher for the hydraulic excavator of the present invention can be replaced quickly and easily for each of the fixed blade and the rotary blade, and has a circular arc cross section with a four-bar linkage device equipped with a booster mechanism. the bucket cover to allow insertion by rotating in the bucket and a forming bucket bottom wall and push the object to be crushed to the back of the bucket, with strongly crushed, the advantage of reducing the crushing residue is there. In addition, there is an advantage that the waste can be used for multiple purposes such as loading, unloading, loading, unloading in addition to pushing and crushing waste with a bucket and bucket cover.

A waste crusher for a hydraulic excavator of the present invention includes a bucket, a rotary drum rotatably supported on both side walls of the bucket, a fixed blade supported on both side walls of the bucket, and a circumference of the rotary drum. A rotary blade provided on the surface, a bucket cover provided with a four-bar linkage device provided with a booster mechanism, and a bucket bottom wall formed in a circular arc shape in cross section are provided.

An embodiment of the present invention is shown in FIGS.
A crusher for a hydraulic excavator according to an embodiment of the present invention includes a rotating drum 11, a rotating blade 12, a fixed blade 13, a bucket 20, a bucket cover 30, and an electromagnet 40.
The rotary drum 11 is pivotally supported on both side walls 24 and 24 of the bucket 20 and can be driven in the forward and reverse rotation directions by a hydraulic motor 1101 provided on the outer surface of the side walls 24 and 24.
As shown in FIGS. 1 and 4, the fixed blade 13 is formed by forming a plurality of mountain-shaped blades on the flat plate 130, provided close to the rotary drum 11, and supported by both side walls 24 and 24. .
As shown in FIGS. 1 and 4, the rotary blade 12 includes a plurality of pairs of mountain-shaped blades 12 on the circumference of the rotary drum 11, and a mountain-shaped valley 131 of the fixed blade 13. It is fixed to a tool post 121 fixed to the circumferential surface of the rotary drum 11 via a mounting bolt 120 so that it can be inserted sequentially with rotation.
As shown in FIG. 7, the bucket 20 forms a front opening portion 21, a rear discharge portion 22, and both side walls 24, 24, and a tip of a bucket cover 30 to be described later enters the opening portion 21. A bottom wall 23 formed in an arc shape is provided so as to be able to turn closely, and can be turned to the tip of the arm 2 of the excavator 1 through the shaft hole 27 of the arm mounting bracket 25 provided on the upper surface of the bucket 20. While being pivotally attached, it is pivotally attached to the rod link 5 of the bucket cylinder 3 through the shaft hole 26 of the bracket 25.
The bucket cover 30 is pivotally supported by a bracket 200 on the upper surface of the opening 21 of the bucket 20 so that it can be rotated by a cover cylinder 33 via a bell crank 321 and a link 322 constituting a four-bar linkage device.
As shown in FIGS. 2, 3, and 6, the four-bar link device includes a pair of brackets 200 provided on the upper surface of the bucket 20, a pair of bell cranks 321 of a booster rod, a pair of links 322, and a bucket cover. 30, each bell crank 321 is rotatably connected to the bracket 200 of the bucket body at the second connecting portion 3212 at the lower end, and is rotatably connected to the link 322 at the third connecting portion 3213 at the tip. An intermediate first connecting portion 3211 is rotatably connected to the cylinder rod 331 of the cover cylinder 33, and the other end of the link 322 is rotatably connected to the fourth connecting portion 301 of the arm 300 of the bucket cover 30. The fifth cover 302 of the bucket cover 30 fixed to the arm 300 is connected to the bracket 200 of the bucket 20 so as to be freely rotatable.
Further, as shown in FIG. 5, the bucket cover 30 is connected to the pair of brackets 200, 200 of the bucket body so as to be freely rotatable by fifth connection portions 302, 302 provided on the pair of arms 300, 300, The connecting portions 302 and 302 on both sides are directly connected by a counter shaft 34 (intermediate shaft), and are rotatably connected to the lower end of the link 322 by a fourth connecting portion 301 at the upper end of the arm 300.
Therefore, when the crusher is used, the arm 2 of the excavator 1 is driven, the lower end of the bucket 20 is brought close to the object to be crushed 50, and the iron magnets in the crushed object 50 are adsorbed and removed by the electromagnet 40. After that, if a solenoid valve (not shown) provided on the arm 2 is switched and the hydraulic pressure supplied to the bucket cylinder 3 is supplied to the cover cylinder 33, the bell crank 321 is connected via the cylinder rod 331 and the first connecting portion 3211. The second connection portion 3212 rotates around the center, the link 322 is pushed by the third connection portion 3213 at the tip, the lower end of the link 322 pushes the fourth connection portion 301 of the bucket cover 30, and the bucket cover 30 The floating parts around the connecting parts 302 and 302 act as a four-bar link, and the whole bucket cover 30 can be rotated, and the fifth connecting parts 302 and 30 can be rotated. The counter shaft 34 provided, it is possible to correct the unbalance of the load of the object to be crushed 50 striking the left and right tip of the bucket cover 30.
By rotating the bucket cover 30, the object to be crushed 50 is taken into the bucket, and further rotated into the bucket 20 so as to be pressed against the rotating drum 11, and another electromagnetic valve (not shown) provided on the arm 2 is switched. Thus, the hydraulic pressure supplied to the bucket cylinder 3 is supplied to the drive hydraulic motor of the rotary drum 11, and the object 50 is crushed between the rotary blade 12 and the fixed blade 13.
The crushed small pieces to be crushed are discharged from the discharge portion 22 of the bucket 20.

The waste crusher for a hydraulic excavator of the present invention is simple in structure and easy to manufacture, can be mass-produced, and can be used by being attached to a general-purpose hydraulic excavator at a waste disposal site.

It is explanatory drawing which shows the principle of this invention crusher. It is explanatory drawing of the bucket of this invention Example. It is another explanatory drawing of the bucket of FIG. It is explanatory drawing which shows the relationship between the rotary blade of this invention, and a fixed blade. FIG. 4 is a front view of the bucket cover of FIG. 3. FIG. 3 is an explanatory diagram of a four-bar linkage mechanism in which an arm mounting bracket portion is omitted from FIG. 2. It is explanatory drawing which shows the use condition of this invention. It is a perspective view of another Example of this invention. It is explanatory drawing of a prior art example.

11, 11B Rotating drum 12, 12B Rotating blade 120, 120B Rotating blade mounting bolt 121, 121B Tool post 1211 Protrusion 1220 Tool protector 13, 13B Fixed blade 130 Flat plate 131, 131B Valley of fixed blade 132, 132B Fixed blade Mounting bolt 20 Bucket 21 Bucket opening 22 Bucket discharge part 23 Bucket bottom wall 24 Bucket side wall 30 Bucket cover 321 Bell crank 3211 Bell crank intermediate part 322 Link 33 Cover cylinder 331 Cover cylinder rod 40 Electromagnet 50 object

Claims (1)

A bucket 20 having an opening 21 for feeding a material to be crushed 50 such as waste and a discharge unit 22 for discharging the material to be crushed 50, and a rotating drum 11 rotatably supported on both side walls 24 of the bucket 20 And a plurality of fixed blades 13 that are supported on both side walls 24 of the bucket 20 and arranged close to the rotary drum 11, and the circumferential surface of the rotary drum 11 are sequentially fitted as the fixed blade 13 rotates. A plurality of rotary blades 12 provided so as to be able to, a pair of brackets 200 respectively provided on the upper surface of the opening 21 of the bucket 20, a bell crank 321 having one end pivotally attached to each bracket 200, and each bell crank 321 A link 322 having one end pivotally attached to the other end, an arm 300 having one end pivotally attached to the other end of each link 322, a bucket cover 30 fixed to the pair of arms 300, and a pair of bell cranks 32 The four-joint link device comprising a cover cylinder 33 having a rod 331 axially attached to the intermediate portion 3211 and the tip of the bucket cover 30 are formed in an arc shape so that the tip of the bucket cover 30 rotates closely and can be fitted into the bucket 20. A waste crusher for a hydraulic excavator, characterized by comprising a bucket bottom wall 23.

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