WO1989003635A1

WO1989003635A1 - Self-propelled stone crusher

Info

Publication number: WO1989003635A1
Application number: PCT/JP1988/001076
Authority: WO
Inventors: Kazuhiko Harada; Takeshi Masuhara; Akira Nakajima; Seiichi Aizawa; Masakazu Kawakita; Masayoshi Fujiwara
Original assignee: Kabushiki Kaisha Komatsu Seisakusho
Priority date: 1987-10-23
Filing date: 1988-10-21
Publication date: 1989-05-05
Also published as: EP0348510A4; EP0348510A1

Abstract

A self-propelled stone crusher constructed so that it can be operated even on the soft ground without lowering of the travelling performance thereof, can remove by itself such a large stone that cannot be crushed therewith, and crush stones as it excavates the superficial earth. This crusher is provided with a blade (17) fixed to the front portion of a crusher body (10), which has a crawler type driving unit (15), in such a manner that the blade (17) can be vertically moved, and a stone crushing unit (20) fixed to the rear end portion of the crusher body (10) with respect to the travelling direction of the stone crusher so that the stone crushing unit (20) can be detached and vertically moved. This unit (20) has a rotary drum (27) which is supported rotatably on both side plates (21a, 21a) of a cover member (21) opened toward the ground surface and which is provided with a plurality of bits (29) on the outer circumferential surface thereof; a repulsive plate unit (40), a granulating plate unit (41) and a sorter (42) which are arranged in a mutually spaced manner in the mentioned order in the rotational direction of the rotary drum (27) and fixed to the inner surface of the cover member (21) so that these units can crush stones in cooperation with the rotary drum (27).

Description

Specification

Self-propelled stone crusher

TECHNICAL FIELD OF THE INVENTION

The present invention relates to a self-propelled stock crusher that crushes debris scattered in a surface layer and underground, such as when constructing an agricultural field. A track-type traveling unit is provided in places where running is difficult, especially on soft terrain, to remove large non-crushable rubble by itself, and to excavate the topsoil to remove rubble. Regarding crushing self-propelled stone crushers.

Further, the self-propelled stone crusher of the present invention also has a function of leveling the ground surface after crushing rubble.

BACKGROUND OF THE INVENTION

As shown in Fig. 1 of the attached drawings, there is a crusher 2 at the rear end with respect to the running direction of the wheel-type vehicle 1 so that the wheel-type vehicle 1 can run. A self-propelled crusher that pulls the crusher 2 and crushes it with the rubble crusher 2 that is scattered up to a predetermined depth in the surface layer such as an agricultural field and the ground. Stork crushers (for example, stiff crushers made by Vivalyard in the west of the country) are also known.

In the case of a self-propelled stone crusher, the crusher 2 is pulled by the wheeled vehicle 1, so that the traveling performance on soft ground is poor and the vehicle is weak. It is not possible to efficiently crush the rubble scattered on the ground, and the crusher 2 collides the excavator 3 that rushes the rubble with the crushed rubble at high speed. Han to crush When the blades of Excavator Evening 3 are worn, the hammer rotor 4 is used to dump large rubble scattered on the ground surface. Because the cutter is hit directly with the cutter, and the large anti-crushing force needs to be supported by the rotating shaft 5, the mounting of the rotating shaft 5 needs to be strengthened. It is necessary to work to remove the large rubble from the rubble or the stones, and the work efficiency of the crushing will be reduced.

In addition, the depth of the excavator 3 to penetrate into the ground is shallow, and it is not possible to crush rubble covered with relatively thick topsoil.

Furthermore, since the crusher 2 performs rubble debris only by the rotation of the hammer rotor 4, the crushing efficiency is relatively low.

Summary of the Invention

The present invention has been made in view of the above-mentioned circumstances of the prior art, and the first purpose is to provide no hindrance to running performance even on soft ground. In addition, a self-propelled stone crusher that can remove large rubble that cannot be crushed by itself and crush rubble while excavating the top soil is provided. Yes.

Further, a second object of the present invention is to provide a self-propelled stone crusher capable of leveling the ground surface after crushing rubble.o

Furthermore, the third object of the present invention is that the rubble has a high crushing efficiency and is attached to and detached from the rear end of a crawler-type construction vehicle such as a bulldozer. By providing a possible rubble crusher Yes.

According to the first aspect of the present invention, in order to achieve the above-mentioned purpose, according to the first aspect of the present invention, a boom mounted on the front of a vehicle body equipped with a crawler-type traveling unit is provided. A self-propelled stalk that includes a blade and a rubble crusher that is attached to and detached from the rear end of the vehicle body, and is mounted on the ascent and descent. A lasher will be provided.

According to a second aspect of the present invention, in order to achieve the second object, the crushed stone crusher according to the first aspect is attached to a rear end thereof. A self-propelled stone crusher will also be provided that will include a single leveling device.

In order to achieve the third object, according to the third aspect of the present invention, the crawler-type construction vehicle is attached to and detached from the rear end of one crawler-type construction vehicle via a connecting means. The cover member and the cover member are connected to the self-moving member. The rotating member is supported on both sides of the cover member, and a number of bits are attached to and detached from the outer peripheral surface. A rotating drum mounted on the inner surface of the cover member and a rotating drum that cooperates with the rotating drum to exhibit a rubble crushing function. Repulsion means, granulation plate means, and sorting means, which are sequentially fixed along the rotation direction of the drum, and one of the cover members, respectively. A rubble crusher is provided that includes a rotary drum drive mechanism mounted on an outer portion.

The purpose, embodiments, and advantages of the present invention and other preferred embodiments of the present invention will be described in detail with reference to preferred embodiments which are in accordance with the principles of the present invention. The following description and the accompanying drawings, which will be described in connection with the accompanying drawings, will be apparent to those skilled in the art.

BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a schematic side view showing an example of a conventional stock crasher.

FIG. 2, FIG. 3, and FIG. 4 are schematic overall side views, plan views, and rear rear views, respectively, showing a specific example of the present invention.

Fig. 5 is a schematic vertical sectional view of the rubble crusher.

Fig. 6 is a schematic longitudinal sectional view showing the main part of another concrete example of a rubble crusher.

Fig. 7 and Fig. 8 are front and side views, respectively, of the rotating drum incorporated in the rubble crusher shown in Figs. 5 and 6, respectively.

Fig. 9-Fig. 10 are schematic longitudinal sectional views and schematic side views of the rotary drum drive mechanism, respectively.

Fig. 11, Fig. 12 and Fig. 13 show the repulsion, fine-grained plate and the transition mechanism attached to the rubble crusher, respectively. FIG.

FIGS. 14 and 15 are schematic perspective views of the repulsion means and the fine-grained plate means, respectively.

FIG. 16 is a longitudinal sectional view of the rod mounting portion of the fine grain plate means. FIG. 17 is a longitudinal sectional view for explaining the rubble breaking operation of the present invention.

FIG. 18 is a schematic perspective view showing the back of another embodiment of the present invention.

FIG. 19A, FIG. 19B, and FIG. 19C are operation explanatory diagrams of the specific example shown in FIG. 18, respectively.

FIG. 20 is a graph showing the overall particle size distribution before and after the test in a field where a rubble crushing test was performed using the self-propelled stone crusher of the present invention. In the end,

Figure 21A shows the surface and interior of the field before the debris crushing test.

Figure 21B shows the surface and interior of the field after the debris crushing test.

Preferred-Detailed description of the specific example

Hereinafter, specific examples of the present invention will be described in detail with reference to the accompanying drawings.

First, as shown in FIGS. 2 to 4, track frames 11 are mounted on both sides of the vehicle body 10 of the track-type construction vehicle A, and the track frames 11 are attached to the track frames 11. The crawler belt is wound around the adductor 12 and the sprocket 13 arranged before and after the frame 11 for 14 times. Along with constituting the track-type traveling unit 15, the above-mentioned sprocket 13 is provided with a final reduction gear, a steering clutch * brake, a transmission, It is connected to the not-shown engine via the Luccomba overnight. A blade 1 is connected to the track frame 11 in a vertically movable manner, and is connected to a front end of the blade 16. While the blade 17 is attached, a lift cylinder 18 is pivotally connected between the blade 17 and the vehicle body 10 so as to be connected. The blade 17 has a fertilizer spreader 19 attached and detached on its own.

Reference numeral 20 denotes a debris crusher attached to and detached from the rear end of the vehicle A so as to be vertically swingable.

The crusher 20 is provided with a cover member 21 opened downward as shown in detail in FIG. 5, and a bolt 2 is attached to the cover member 21. Attach and detach bracket 23 with bracket 2 and attach bracket 25 to this bracket 23 and bracket 24 and bracket 25 attached to the rear of vehicle body 10 to link. The cover 26 is pivotally connected to be vertically and automatically mounted, and an iron rotating member is provided between both sides 21 a and 21 a of the cover member 21. Drum 27 is supported. As shown in FIGS. 7 and 8, a bit mounting base material 28 is provided on the outer peripheral surface of the rotary drum 27 in the circumferential direction and the axial direction. A large number of pieces are fixedly attached to each other at intervals, and a conical bit 29 is attached and detached to each bit mounting base material 28 by itself. . The rotating drum is connected to a motor 31 via a driving mechanism 30.

The rotating drum drive mechanism 30 is connected to one of the cover members 20 as shown in FIGS. 1, 9 and 10. A case 32 attached to the side plate 2 la of the vehicle is provided, and a motor 31 is fixed on the upper part of the case 32, and the output of the motor 31 is provided. The shaft 31a is connected to the rotary drum drive shaft 36 via the cas mount 33, the chain 34 and the lower shaft 35. . Then, according to the driving of the motor 31, the rotating drum 27 is rotated in the directions indicated by arrows in FIGS. 5 and 8.

In addition, the inner wall of the cover member 21 exerts a rubble crushing function in cooperation with the rotating drum, and has a repulsion plate device 4 、 and a fine-grained plate device 4. 1, the sorting mechanism 42 is sequentially mounted at intervals from each other along the rotation direction of the rotating drum 27, while it is attached to the rear of the cover member 21. In the event that the track 43 is installed.

FIG. 6 shows a specific example of the repulsion device 40. According to this specific example, the rebound device 40 faces upward with respect to the ground C (cover). -A plurality of bits 40d are attached to the inclined base 40c facing the ground. Fig. 6 shows the rebound plate device 40. In the configuration shown in the figure, the rubble that jumped up from the point D collides with the bit 40d. The crushing efficiency is improved even when the collision occurs.

A plurality of rebound devices 40 shown in FIG. 5 are arranged in the traveling direction of the vehicle as shown in FIG. 14, and each of them is a cover member 21. The direction of travel of the vehicle along the inside Alternatively, it is mounted on the inner surface of the cover member 21 via a plurality of bolt nuts 46 so that the movable member can move within a predetermined distance range in the opposite direction. The base end is fixed to the mounting 扳 44 and the mounting 扳 44 via the vertical 扳 45, and the distal end is formed on the rotation locus of each bit 29 mounted on the rotating drum 27. The surfaces have repulsions 40a opposed to each other at intervals. The moving distance range of the mounting nut 44 is drilled in the mounting nut 44, and the length of the long hole 44a through which the bolt of the bolt nut 46 passes is inserted. O

Further, in the repulsion 44 a, as shown in FIG. 11, a plurality of recesses 40 are formed on the front end surface facing the rotating drum 27.

As can be clearly understood from FIGS. 5 and 6 in connection with the repulsion plate device 40 configured as described above, each bolt nut is provided. The adjusting screw 47 is rotated clockwise or counterclockwise, and the repulsion 40a is moved as described above. I can do it. Thus, the bit rotation trajectory of the rotating dram 27 and the repulsion according to the conditions of the rubble distribution in the soil (size of rubble, particle size distribution, rubble content, etc.) The gap between a and can be adjusted. '

As shown in FIG. 12, the fine-graining plate 41a of the fine-graining plate device 41 also has a plurality of concave portions on the tip end surface facing the rotating drum 27. 4b is formed, and its base end is connected to the cover member 21 via a pivot 48 as shown in FIG. It is mounted on the inner surface of the wall. Furthermore, since the distance between the tip surface of the fine-grained plate 41a and the bit rotation locus of the rotating drum 21 can be adjusted, the movable body cannot move vertically. The lower end of the rod 49 supported by the cover member 21 is connected to the tip of the granulation plate 4 la. Since this rod 49 is expanded and contracted in the vertical direction, the fine-grained plate 41 a is vertically moved around the pivot 48 (see the clockwise direction in FIG. 5). Or counterclockwise), causing a gap between the tip surface of the fine-grained plate 41 a and the bit rotation locus of the rotating drum 27. Can be adjusted. The rod 49 is attached to the outer surface of the cover member 21 as shown in FIG. 16 and is housed in a cylindrical body 50 that opens downward. The upper end screw portion 49a protrudes out of the cylinder 50, and the nut 51 is screwed into the bracket, and the inner surface of the cylinder 50 and the rod 49 are formed. It is urged downward by a resilient spring 52 disposed between the large-diameter portion 49 b provided in the middle portion, and by rotating the nut 51 forward and reverse, the rod 49. Is moved up and down to move the fine-grained plate 41 a vertically around its axis 48, and the rotation locus of the bit 29 is The gap can be adjusted.

The sorting mechanism 42 has a plurality of vertical rods 42a arranged at predetermined intervals in a horizontal direction perpendicular to the traveling direction of the vehicle に as shown in FIG. 13. .

Next, the crushing operation of the crusher by the crusher is explained based on Fig. 17 Clarify.

By turning the rotating drum 27, rubble debris scattered in the ground is crushed with the bit 29, and it is simultaneously jumped up to the ground surface.

The rubble that had been thrown up without being crushed in the ground collided with the rebound 扳 40a attached to the cover member 21 and at the same time hit the street at bit 29, causing shear compression crushing. It is secondarily crushed by impact crushing.

At this time, a large number of bits 29 mounted on the outer peripheral surface of the rotating drum 27 prevent the splashed rubble from scattering and prevent the bits 29 from scattering. The shear and impact of the rubble are returned by and the repulsion 40a, and the rubble can be crushed efficiently.

The debris crushed by the repulsion 40a and the bit 29 bounces back to the fine-grained iridescent plate 41a, and rebounds. Repulsion 40 a corresponds to repulsion 40 a and fine-grained plate 41 a.

In other words, the granulation plate 41 a is mounted almost horizontally on the rotary drum 27 almost directly above the revolving drum 27, and between the repulsion plate 40 a The space can be maximized as much as possible, and the rubble that collided with the granulation plate 41a again hits the bit 29 of the rotating drum 27. The tip facing the rotating drum 27 of the fine-grained plate 41a is curved downward. By turning the rods 49 and turning the rods 49 together with the bites 29 to increase the number of hits of the stones and the stones, complicating the passage of the stones The rocking plate 41a is swung up and down around a pivot 48 provided at the base end of the plate 41a to reduce the amount of rubble and the clearance between the bit and the locus of rotation. Can be adjusted. In addition, as shown in FIG. 16, the rods 49 are urged downward by the springs 52, and the granulated plate 1a is gravels. When a collision occurs, the spring 52 absorbs the shock. The fine-grained plate 41a can be swung up and down by a cylinder (not shown).

The fine-grained rubble can pass through the rear of the vertical rods 42a, 42a adjacent to each other at a predetermined interval that constitute the sorting mechanism 42. However, it is not possible to pass through between the adjacent vertical rods 42a, 42a. Large-sized rubble collides with the vertical rod 42a and is splashed in the direction of the bit 29. At the same time as the shot is made with bit 29 again, it will be laid on the undersurface of the soil excavated with bit 29, so that it has been refined. The rubble is distributed on the surface layer, while the crushed rubble is insufficiently crushed and re-crushed according to Bit 29, and is laid under the field to lower the level of the present invention. Further, according to one specific example, as shown in FIG. 18, a ground plate 53 is provided at the rear end of the cover member 21 of the debris crusher 20. It is attached.

In other words, the rear covering 43 of the debris crusher 20 was bracketed. The brackets are pivotally mounted in the vertical direction with pivot pins 54 through the shafts, and the grounds are fixed to the brackets 55, 55 fixed on both sides of the cover 43. Attach 53 vertically through the support shaft 56 so that it can be freely moved up and down. At both ends of the support shaft 56, there is a hanging part of leveling ground 53 and approximately 90. The levers 57, 57 projecting in the running direction along the side of the cover 43 are fixedly attached. At the upper position corresponding to the ends of the levers 57, 57, the ends of the rods 58, 58 fixed to both sides of the upper surface of the cover 43 project. Yes. And, between these rods 58, 58 and the levers 57, 57, springs for holding the hanging part of the ground plate vertically are provided. , 59 are concatenated.

Thus, as shown in Fig. 19A, in the case of relatively shallow excavation, the hanging part of the ground plate 53 is in a substantially vertical state. In this case, as shown in Fig. 19B, the leveling soil 53 can support the support shaft 56 depending on the earth pressure excavated against the tension of the springs 59, 59. It is swung upward (rotated counterclockwise in the figure) around the center. As the excavation proceeds further and a large amount of soil and crushed debris accumulates in the cover member, that is, if the overburden acts on As shown in the 19 C diagram, the leveling ground 53 swings further upwards past the dead points of the levers 57, 57 and the springs 59, 59 ′. It will be.

At this time, the spindle of the leveling ground 53 in the spring 59 5 When the momentum PXA (see Fig. 19A) acting around 6 is almost the same, the ground level rocks and the cover member 21 The soil pressure distribution can be made approximately uniform regardless of the amount of soil and crushed rubble deposited.

In addition, when a large amount of soil and rubble is accumulated in the cover member 21 and the traction resistance is increased, that is, in the case of overload, the landslide 53 is used as the ground level. As shown in Fig. 19C, it swings extremely upward, and the traction resistance is reduced.

The advantages of the debris crushing operation using the self-propelled stock crusher of the present invention described in detail above are as follows.

Immediately before the rubble crushing work by the rubble crusher 20, the traveling direction of the crawler type construction vehicle A. When the topsoil is excavated by the blade 17 attached to the end, In both cases, the rubble that is larger than a predetermined size can be removed, so that the crushing efficiency of the rubble is remarkably improved, and a large load is created on the rubble crusher 20.ぃ. In addition, the work efficiency has been significantly improved since the removal of large stones by a separate construction vehicle is no longer necessary as a preliminary work before rubble crushing work.

Furthermore, immediately after the topsoil is removed with blade 17, debris crushing work can be performed, so that debris scattered in relatively deep parts of the soil covered with thick topsoil can be removed. Can be crushed.

Test results proving the above advantages are shown in FIG. 20, FIG. 21A, and FIG. 21B.

FIG. 20 shows the self-propelled stowing crusher of the present invention. This is a graph showing a comparison of the overall grain size distribution of the land before and after the debris crushing work. As you can see from this graph, the particle size after application is 25 mn! The cumulative weight percentage of rubble of ~ 15 O mm was improved by around 10% compared to that before the application.

Figures 21A and 21B show the rubble distribution on the land before and after the crushing work on the self-propelled stone crusher according to the present invention, respectively. The state is shown separately for the surface and the cross section. In Fig. 21B, almost no rubble remains on the surface and upper layer after the application.

Claims

The scope of the claims

1. A blade attached to the front of the vehicle equipped with a track-type traveling unit, and a blade attached to the front of the vehicle, and attached to and detached from the rear end of the vehicle in the traveling direction. A self-propelled stock crusher equipped with a single rubble crusher installed at the moment.

2. With the self-propelled stone crusher according to claim 1, the crusher automatically moves vertically at the rear end in the running direction. Self-propelled stolon crusher characterized by having attached leveling means.

3. one cover member which is attached to and detached from the rear end of one crawler type construction vehicle in the traveling direction via the connecting means and is connected to the ascending and descending position; _ both sides of the cover member; A single rotating drum having a number of bits attached to and detached from the outer surface of the rotating drum supported by the rotating part itself, and rubble in cooperation with the rotating drum Repulsion plate means and fine granules which are fixed to the inner surface of the cover member at intervals so as to exhibit a crushing function along the rotation direction of the rotating drum, respectively. A debris crusher comprising: a liquefying means; a sorting means; and a rotary drum drive mechanism attached to one outer side of the cover member.

4. In the rubble crusher according to claim 3, wherein the repulsion means is provided in the traveling direction of the vehicle or in the opposite direction along the inner surface of the cover member. It has a plurality of elongated holes that can be moved in and out of the distance range, and a plurality of bolts and nuts penetrated through the elongated holes. Hippo And a base fixed to the mounting 扳 through a single vertical ridge, and each of the bits mounted on the rotating drum. Debris crusher characterized in that the rotation trajectory of the slab includes a single repulsion with the tip face facing at an interval.

5. In the crushed stone crusher according to claim 3, the fine-graining plate means has an inner surface of the cover member having a base end through one pivot. A single rod supported by the cover member so that the tip of the rotary drum facing the bit rotation locus is movable in the vertical direction. Pebble pebble that is connected to the lower end of the means and is characterized by including a number of fine-grained plates that are swingable upward and downward about the pivot axis. Crushing machine.

6. In the rubble crusher according to claim 3, the sorting means includes a plurality of sorting devices arranged in a lateral direction perpendicular to a traveling direction at a predetermined interval from each other. A pebble crusher whose special feature is made of vertical rods.

7. The rubble crusher according to claim 4, characterized in that the repulsion has a plurality of recesses on its tip surface. .

8. The crushing stone crusher according to claim 5, wherein the shredded plate has a plurality of recesses on a tip surface thereof. Stone crusher.

9 The crushed stone crusher according to claim 5, wherein The rod means has one cylindrical body attached to the outer surface of the cover member, and a screw portion at the upper end which penetrates the cover member and projects to the upper part of the cylindrical body. A rod having a lower end connected to the tip of the fine-grained plate, a nut means screwed to the screw portion of the rod, and the nut; The spring for urging the rod downward includes an elastic spring interposed between the inner surface of the cylinder and a large diameter portion formed in the middle of the rod. A rubble crusher characterized by the following.