JPH11347493A - Grizzly of self-traveling crusher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a grizzly of a self-traveling crusher with a lightest mucking bar as a heaviest exchange material, hence capable of being easily and safely maintained and with the position adjustable. SOLUTION: This self-traveling crusher has a hopper 2, a grizzly 3 formed by alternately arranging a plural mucking bars 31 at regular intervals in the horizontal direction and a crusher 4 for crushing a raw material G0 dropped into the hopper 2 and sent on a grizzly 3 from the hoppers 2 on a self-traveling car body 1, and a crushed material G1 crushed by the crusher 4 and the small- diameter raw material G0s dropped from an opening of the grizzle 3 are made freely dischargeable. Bolts for fastening each of the mucking bars to the car body 1 and a guide plate having the holes for the bolts at regular intervals are further provided, the guide plate is placed on the car body 1, the mucking bars are placed on the guide plate and the bolts are passed through the holes of the guide plate to fasten the mucking bars to the car body 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grinder for a self-propelled crusher.

[0002]

2. Description of the Related Art A self-propelled crusher, as described with reference to FIGS. 1 and 2, has a hopper 2, a grizzly 3 and a crusher 4 on a vehicle body 1 and runs by itself. A plurality of grizzles 3 are arranged with a predetermined gap δ in the left-right direction (the left-right direction when viewed from the vehicle body, the vertical direction in FIG. 1; the vertical direction in FIG. 2; the same applies hereinafter). For example, waste concrete generated at a construction site or quarry at a quarry (hereinafter simply referred to as "raw material Go") is dropped into the hopper 2 by a loading machine such as a hydraulic shovel or a wheel loader, and the grizzly 3 After passing through the above, it is sent to the crusher 4 and crushed. The crushed material G1 and the raw material Gos having a small particle diameter falling from the predetermined gap δ of the grizzly 3 can be discharged outside the vehicle.

A conventional grizzly 3 of such a self-propelled crusher will be described with reference to FIGS. (1) The grizzly 3a of FIG.
Are fixedly provided with a predetermined gap δ in the left-right direction. (2) The grizzly 3b shown in FIG. 13 is configured such that the sliver 31b is bolted to the sliver holder 32 and the sliver 31b is
Is a split type in which the sliver holder 32 is bolted to the vehicle body 1 so as to have a predetermined gap δ in the left-right direction.

[0004]

However, since the self-propelled crusher is of a self-propelled type, it is generally of a size that can be transported by a trailer. However, self-propelled crushers have much simpler and more economical productivity based on their self-propelled functions compared to fixed plant crushers, so they can be transported separately by trailer. There is a demand for large self-propelled crushers capable of high production volumes.
FIG. 1 and FIG. 2 are external perspective views of a prototype vehicle of such a large self-propelled crusher. Therefore, when the above-described conventional grizzlyers 3a and 3b are mounted on such a large self-propelled crusher, the following problems occur.

[0005] Wear is sliding wear, cutting wear,
It is roughly divided into impact wear and these combinations. With the operation of the self-propelled crusher, the upper surface of the sliver 31 slides and wears due to the sliding of the raw material Go. Further, the leading end of the sliver 31 is worn by cutting when the raw material Go starts to fall onto the next grizzly 3 or into the crusher 4. Further, the rear upper surface of the slipper 31 has a raw material G from the hopper 2 (more precisely, a feeder provided at the bottom of the hopper 2) and the preceding grizzly 3.
o Impact wear due to falling. The degree of wear differs for each of the slivers 31. That is, the wear amount is smaller as the sliver 31 is located on the left and right sides of the vehicle body 1, and the wear is more significant as the sliver 31 is located at the center side. That is, the sliver 31 is a consumable part, and therefore it is desirable that the sliver 31 can be replaced and its arrangement can be adjusted. If the arrangement can be adjusted, the particle size of the raw material Gos having a small particle size can be freely selected.

(1) However, since the grizzly 3a shown in FIG. 12 is an integral type, when changing the particle size of the raw material Gos by changing the predetermined gap δ, the grizzly 3a having another predetermined gap δ is used.
Must be prepared. Also, when the sliver 31 exceeds the wear limit, the left and right slivers 31 do not often exceed the wear limit, which is uneconomical. Moreover, when such an integrated grizzly 3a is used in a large-sized self-propelled crusher as shown in FIGS. 1 and 2, the grizzly 3a becomes heavy, for example, 200 to 300 kg or more. Becomes That is, such a grizzly 3a
In such a case, replacement occurs frequently, and it is necessary to prepare various kinds of grizzly 3a in advance, which requires time and effort for replacement and inevitably lowers the operation rate.

(2) On the other hand, since the grizzly 3b shown in FIG. 13 is of a split type, it can be replaced for each slip bar 31b and the predetermined gap δ can be adjusted, but the position of the slip bar 31b cannot be adjusted in the longitudinal direction. Can not cope with tip wear. In addition, the adjustment of the predetermined gap δ involves adjusting the position of the sliver holder 32. However, in the large self-propelled crusher shown in FIGS.
Since the weight becomes 0 kg or more, there is a danger in the adjustment work. Therefore, it takes time and effort to adjust the predetermined gap δ, and a reduction in the operation rate is inevitable.

As disclosed in, for example, Japanese Patent Publication No. 5-8074, Japanese Patent Application Laid-Open No. 5-192641, and Japanese Patent Application Laid-Open No. 6-91227, various techniques have been disclosed in which a predetermined gap δ of a grizzly can be adjusted. . However, there is a technique that can be used as a reference for solving the above-mentioned problems, that is, a technique that makes it possible to easily and safely maintain and adjust the position of a heavy grizzly by setting the lightest sliver in the maximum weight as a replacement. It is a fact that is not found.

The present invention has been made in view of the above-mentioned problems of the prior art,
An object of the present invention is to provide a grinder of a self-propelled crusher that can be easily and safely maintained and whose position can be adjusted by making the lightest sliver of the grizzly to be the maximum weight to be replaced.

[0010]

In order to achieve the above object, a first invention of a hopper of a self-propelled crusher according to the present invention comprises a hopper 2 and a sliver 31 on a self-propelled body 1 which are separated from each other. A plurality of grinders 3 arranged with a predetermined gap δ in the left-right direction, and a crusher 4 for crushing the raw material Go dropped into the hopper 2 and passing over the grinder 3 from the hopper 2; Crushed material G1 and grizzly 3
In the self-propelled crusher capable of freely discharging the raw material Gos having a small particle diameter dropped from the predetermined gap δ, a bolt 35 for fastening the same to the vehicle body 1 for each of the slivers 31c, and these bolts 35 penetrate at predetermined intervals. And a guide plate 34a provided with a hole 34a1 formed therein.
4a, and the sliver 31c is mounted on the guide plate 34a. The bolt 35 is fastened to the vehicle body 1 through the hole 34a1 of the guide plate 34c.

According to the first aspect of the present invention, the guide plate 34a is placed on the vehicle body 1, the sliver 31c is placed on the guide plate 34a, and the bolts 35 are passed through the holes 34a1 of the guide plate 34c. 1
At this time, the guide plate 34a has a hole 34a1 through which the bolt 35 penetrates at a predetermined interval.
Therefore, by selecting the hole 34a1 through which the bolt 35 is inserted, or by replacing the guide plate 34a with the hole 34a1 having a desired predetermined interval, the desired predetermined gap δ can be set. In this setting operation, the heaviest of the moving elements is the slipper 31c. However, when viewed from the whole of the grizzly 3, the slip bar 31 c is a lightweight product. Therefore, even with a large-sized self-propelled crusher, inspection work of the grizzly 3, replacement work of the sliver bar 31 c, adjustment work of the predetermined gap δ, and the like can be performed simply and quickly without using a crane or the like. That is, in the grizzly,
Among them, the lightest Zriver is the largest replacement item,
This results in a self-propelled crusher grizzly that can be easily and safely maintained and position adjusted.

According to a second aspect of the present invention, there is provided the grinder of the self-propelled crusher according to the first aspect, wherein a shim is provided between the vehicle body 1 and the guide plate 34a and / or between the guide plate 34a and the sliver 31c. It is characterized by intervening.

According to the second aspect, when the shim is increased or decreased, the slip bar 31c moves in the vertical direction. Sliver 3
1c is supported by the vehicle body 1 at least at its front and rear positions. Therefore, by changing the shim thickness between the front and rear, the inclination angle of the slipper 31c (that is, the inclination angle of the grizzly 3) can be adjusted. Therefore, for example, even the raw material Go or the like mixed with the cohesive soil can be quickly led to the crusher 4. In addition, by intentionally (for example, systematically) changing the inclination angle of each sliver 31c, it contributes to uniform wear of the sliver 31c and the crusher 4. The reason why such fine adjustment can be performed is that the second invention exerts the configuration of the first invention, that is, the effect of "easy and safe maintenance and position adjustment". is there.

According to a third aspect of the present invention, there is provided the grinder of the self-propelled crusher according to the first or second aspect, wherein a plurality of bolt fastening portions 33a1 on the vehicle body 1 side are provided in the longitudinal direction of the sliver bar 31c.
Alternatively, a bolt fastening portion 33b1 capable of fastening the bolt 35 at any position in the longitudinal direction of the sliver 31c is provided.

According to the third aspect of the present invention, when a plurality of bolt fastening portions 33a1 on the vehicle body 1 side are provided in the longitudinal direction of the sliver 31c, the bolts 35 are fastened at the desired bolt fastening portions 33a1. On the other hand, when the bolt 35 has a bolt fastening portion 33b1 that can be fastened at any position in the longitudinal direction of the sliver 31c, the bolt 35 is fastened at a desired position of the bolt fastening portion 33b1. Because of this, Zriver 3
The position of 1c can also be adjusted in its longitudinal direction (that is, in the longitudinal direction of the vehicle body 1). Specifically, for example, even if the tip of the central sliver 31c of the grizzly 3 is worn, the sliver 31c is repositioned in the longitudinal direction, whereby the tip can be aligned with the tips of the other left and right slivers 31c. It should be noted that various effects can be obtained by intentionally (for example, systematically) changing the tip of the entire sliver 31c. For example, the raw material Go can be dropped to the left and right of the crusher 4 by projecting the tip of the center sliver 31c beyond the tip of the left and right slivers 31c. Also, for example, the center sliver 31
The raw material Go can be dropped to the center of the crusher 4 by making only the leading end of the crusher 4 depressed from the leading ends of the right and left slivers 31c. By freely changing the position of the tip of each sliver 31c in this manner, it is possible to contribute to uniform wear of the crusher 4.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to FIGS. The example machine is a large-sized self-propelled crusher described with reference to FIGS. 1 and 2, and a plurality of hoppers 2 and slivers 31 are arranged on a vehicle body 1 with a predetermined gap δ in the left-right direction. And a crusher 4 for crushing the raw material Go dropped into the hopper 2 and passing from the hopper 2 on the grizzly 3. The crushed material G 1 crushed by the crusher 4, The raw material Gos having a small particle diameter falling from the predetermined gap δ can be discharged outside the vehicle. In such an example machine, a grizzly 3c as an example is illustrated in FIGS.

FIG. 3 is a side view of the grizzly 3c. The grizzly 3c has a front-stage grizzly 3c that receives the raw material Go from the hopper 2 and a rear-stage grizzly 3c that receives the raw material Go from the front-stage grizzly 3c and drops it to the crusher 4.
Both the front and rear stage grizzly 3c are inclined by lowering the crusher 4 side. As is known, grizzly is a coarse-grain sieve in which a plurality of wedge-shaped steel materials, square steel materials, thick steel bars or rails or the like are arranged in parallel with each other with an appropriate inclination angle and a predetermined gap δ. is there. The grizzly 3c may be higher on the crusher 4 side.

As shown in the top view of FIG. 4, the side view of FIG. 5, and the front view of FIG. 6, the slipper 31c of the grizzly 3c is formed in a rail shape (of course, other counting may be used). As shown in FIGS. 4 to 6, the sliver 31c includes brackets 31c1 that protrude in the left and right directions at the front and rear lower portions, respectively.
Having. The bracket 31c1 has a vertical bolt hole 31c2 at the center, and has a convex portion 31c3 at the front and rear of the bracket 31c3 at a distance larger than the inner diameter of the bolt hole 31c2. still,
In this example, the bolt hole 31c2 is shown to be open outside the bracket 31c1. However, the present invention is not limited to this, and may be circular or oval.

As shown in FIG. 3, such a sliver 31 c is provided between the upper surfaces of two sliver support brackets 33 provided between the left and right frames of the vehicle body 1 so as to be spaced apart in the front-rear direction. Specifically, it is as follows. As shown in FIG. 7, the lower part of the slipper 31 c is fastened to the slipper support bracket 33 by bolts 35 and nuts 36 via guide plates 34, respectively. In addition, as described later in detail, the guide plate 34 may be provided on the lower surface side of the sliver support bracket 33. If female screws are cut into the sliver support bracket 33, the nut 36 is unnecessary.

FIGS. 8 and 9 show examples of the guide plate 34. FIG. 8 and 9 show different guide plates 3.
4a and 34b are illustrated. Both guide plates 34
a and 34b have a plurality of vertical holes 34a1 in the longitudinal direction (that is, the left and right direction of the vehicle body 1). The bolt 35 passes through the hole 34a1. The holes 34a1 are paired with the interval between the left and right bolt holes 31c2 of the sliver 31c,
The distance between adjacent pairs is different between the two guide plates 34a and 34b. That is, the slipper 31c is positioned by the pair of holes 34a1 and 34a1, while the interval between adjacent slippers 31c, that is, the predetermined gap δ is determined by the interval between adjacent pairs. Although the above two examples 34a and 34b are listed as the guide plate 34, the raw material Gos having a desired small particle size is used.
In order to obtain the above, various guide plates 34 in which the distance between adjacent pairs is different from each other are prepared. Although not shown, by providing holes 34a1 in which the number and the interval of the pairs are variously arranged in one guide plate 34, it is easy to incorporate a plurality of predetermined gaps δ with this one guide plate 34. In any case, the guide plate 34 itself is used for positioning the sliver 31c and for determining the predetermined gap δ. The guide plate 34 may be made of a lightweight steel plate as long as it has this function.

FIG. 1 shows an example of the sliver support bracket 33.
0 and shown in FIG. FIG. 10 includes a sliver support bracket 33a, and FIG. 11 includes a sliver support bracket 33b.

The sliver support bracket 3 shown in FIG.
3a has one long hole 33a1 in the longitudinal direction (that is, the left-right direction of the vehicle body 1). That is, the sliver support bracket 3
By placing the guide plate 34 (for example, 34a) on 3a, the predetermined gap δ of the sliver 31c is determined. That is, the sliver 31c is placed on the guide plate 34, and the bolt 35 is inserted into the bolt hole 31c2 of the sliver 31c.
Through the hole 34a1 of the guide plate 34 and the long hole 33a1 of the sliver river bracket 33a.
By fastening the long hole 33a1 to the male screw portion at the tip of the bolt 35, the sliver 31c is fixed to the vehicle body 1 with a predetermined gap δ. When changing the predetermined gap δ, the bolt 35
Is removed from the nut 36, and the guide plate 34a is separated from the guide plate 34 (e.g., 3
This is achieved by changing to 4b) and bolting again. In this exchange work, moving elements (Sliver 31
c, the guide plate 34a, 34b, the bolt 35, and the nut 36) are the heaviest ones.
However, when viewed from the whole grizzly 3c,
1c is an extremely lightweight product. Therefore, various maintenance operations (replacement operation of the slide bar 31c and adjustment operation of the predetermined gap δ) of the grizzly 3c in the large-sized example machine can be performed simply and quickly without using a crane or the like.

On the other hand, the sliver support bracket 33b shown in FIG. 11 has a long hole 33b1 having a wide width (width larger than the outer diameter of the bolt 35) in its longitudinal direction. In this way, the position of the sliver 31c can be adjusted not only in the left-right direction (ie, the adjustment of the predetermined gap δ) but also in the longitudinal direction (ie, the front-back direction of the vehicle body 1). That is, the fastening part on the sliver support bracket 33 by the bolt 35 is
The wide width of b1 makes it possible to move in the longitudinal direction of the sliver 31c. Such a sliver support bracket 3
According to 3b, for example, the center sliver 3 of the grizzly 3c
Even if the tip of 1c is worn out by cutting, the sliver 31
The position of c is changed in the longitudinal direction, whereby the tip can be aligned with the tip of the other left and right slivers 31c. In addition, the tip of all the slivers 31c is consciously (for example, intentionally).
It can be changed and various effects can be obtained. For example, the raw material Go can be dropped to the left and right of the crusher 4 by projecting the tip of the center sliver 31c beyond the tip of the left and right slivers 31c. Conversely, center sliver 31c
The raw material Go can be dropped to the center of the crusher 4 by depressing only the tip of the sliver 31c from the tip of the left and right slivers 31c. By freely changing the tip position of each sliver 31c in this way, for example, uniform wear of the crusher 4 can be achieved. When the width of the elongated hole 33b1 is made extremely large, the guide plate 34 may be applied to the lower surface of the sliver support bracket 33b and used as a washer for the nut 36. In this case, it is not necessary to provide the guide plate 34 on the upper surface of the sliver support bracket 33b. Of course, the same guide plate 34 may be provided on the upper surface of the sliver support bracket 33b.

The sliver support bracket 33 shown in FIG.
b has one wide slot 33b1. Therefore, the longitudinal position of the slipper 31c and the predetermined gap δ can be adjusted steplessly (ie, in an analog manner). On the other hand, for example, a plurality of square holes having a larger diameter than the bolt 35 are provided in the longitudinal direction of the sliver support bracket 33, a plurality of long holes 33a1 are provided in the guide plate 34 in FIG. By providing a plurality of through holes for the bolts 35 in the vertical and horizontal directions at 33, the longitudinal direction and the predetermined gap δ of the sliver 31c can be adjusted stepwise (that is, digitally). In short, the vehicle body 1 has a plurality of bolt fastening portions (i.e., the long holes 33a1) in the longitudinal direction of the sliver 31c, or the bolt fastening portion (i.e., the long length) capable of fastening the bolt 35 at a free position in the longitudinal direction of the sliver 31c. Hole 33b
It is important to have 1).

Although the guide plate 34 may be provided on the lower surface of the sliver support bracket 33 in FIG. 11, the same applies when the guide plate 34 is provided on the upper surface of the sliver support bracket 33 as shown in FIG. A plurality of guide plates 34 having a predetermined gap δ may be stacked. In this way, the height of the sliver 31c can be adjusted. That is, the guide plate 34 functions as a shim for height adjustment.
By changing or increasing or decreasing the thickness of the shim, the sliver 31c can be translated in the vertical direction or the inclination angle can be changed. Note that the shim is not limited to the guide plate 34 overlapped as described above, and may be, for example, a flat washer or a steel plate having a different thickness or the same thickness. Specifically, the shim is the guide plate 3
4 is provided on one or both of the upper surface (that is, the sliver 31c side) and the lower surface (that is, the sliver support bracket 33 side). By changing the shim thickness of the front and rear sliver support brackets 33, the sliver 31
c (that is, the inclination angle of the grizzly 3c) can be adjusted,
For example, even a raw material Go mixed with an adhesive soil can be quickly led to the crusher 4. Further, for example, by providing a different shim for each sliver 31c, it is possible to change the height or the inclination angle of all slivers 31c and to contribute to uniform wear of the sliver 31c and the crusher 4.

[Brief description of the drawings]

FIG. 1 is a side view of a large self-propelled crusher.

FIG. 2 is a top view of FIG.

FIG. 3 is a side view of the grizzly according to the embodiment.

FIG. 4 is a top view of the grizzly sliver of FIG. 3;

FIG. 5 is a side view of FIG. 4;

FIG. 6 is a view as viewed in the direction of the arrow X in FIG. 5;

FIG. 7 is an assembly view to a sliver support bracket.

FIG. 8 is a top view of the guide plate.

FIG. 9 is a top view of another guide plate.

FIG. 10 is an assembly view of a sliver, a guide plate, and a sliver support bracket.

FIG. 11 is a perspective view of another sliver support bracket.

FIG. 12 is a perspective view of an integrated grizzly of a conventional self-propelled crusher.

FIG. 13 is a perspective view of a divided grizzly of a conventional self-propelled crusher.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body 2 Hopper 3 Grizzles 31, 31c ... Slivers 33a1, 33b1 Long hole (bolt fastening part) 34a Guide plate 34a1 Hole 35 Bolt 4 Crusher Go Raw material G1 Crushed material Gos Small particle size raw material δ Predetermined gap

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Motoki Kurohara 3-20-1 Nakase, Kawasaki-ku, Kawasaki-shi, Kanagawa Prefecture, Komatsu Ltd. Construction Robot Division

Claims (3)

[Claims] A grinder (3) comprising a plurality of hoppers (2) and a plurality of slivers (31) arranged on a self-propelled vehicle body (1) with a predetermined gap δ in the left-right direction, and a hopper (2). A crusher (4) for crushing the raw material (Go) dropped into the hopper and passing from the hopper (2) onto the grizzly (3), and the crushed material (G1) crushed by the crusher (4). ) And a small particle size raw material (Gos) that has fallen from a predetermined gap (δ) of the grizzly (3) in a self-propelled crusher capable of discharging freely. And a guide plate (34a) having holes (34a1) through which the bolts (35) are inserted at predetermined intervals.The guide plate (34a) is mounted on the vehicle body (1). Place and place the sliver (31c) on the guide plate (34a),
A grinder for a self-propelled crusher, wherein a bolt (35) is fastened to a vehicle body (1) through a hole (34a1) of a guide plate (34c) and a sliver (31c) is fastened to a vehicle body (1). 2. A shim is interposed between one or both of the vehicle body (1) and the guide plate (34a) and / or between the guide plate (34a) and the sliver (31c). Item 4. A grizzly of the self-propelled crusher according to Item 1. 3. The vehicle body 1 has a plurality of bolt fastening portions (33a1) in the longitudinal direction of the sliver (31c), or the bolts (35) can be fastened at any position in the longitudinal direction of the sliver (31c). The grizzly of the self-propelled crusher according to claim 1 or 2, further comprising a bolt fastening portion (33b1).