JP3151440B2 - Self-propelled crusher - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-propelled crusher having a crushing device for crushing an object to be crushed, such as a jaw crusher, and more particularly, to improving crushing efficiency and realizing high productivity. The present invention relates to a self-propelled crusher capable of performing the following.

[0002]

2. Description of the Related Art Conventionally, for example, for the production of crushed stone, aggregate for concrete and aggregate for asphalt, it has been obtained by moving a rock near a mining site or close to a face and crushing the mined rock on the spot. A mobile crusher (self-propelled crusher) that transports crushed stones as it was used
4-32744). FIG. 6 shows one embodiment of the mobile crusher 1, in which a hopper 1 is mounted on a frame 3 of a crawler 2 which runs on an endless track by a caterpillar 2a.
A crusher (crushing device) 30 for crushing the rock received from 0 is loaded, and the output of the diesel engine 4 is driven by the hydraulic pump 6 and the hydraulic motor 7 via the rotary shaft 4 a and the chain wheel 5. The crusher 30 is shown in FIG.
As shown in the figure, a jaw crusher is used between a fixed crushing plate 35 and a movable crushing plate 36 swinging back and forth, and a rock, which is a material to be crushed, is injected and crushed. And the movable crush plate 36 is swung via the eccentric rotation shaft 33. The crushed crushed product is discharged from the discharge path 30A to the outside of the machine by the belt conveyor 40, and is transferred by the subsequent belt conveyor or another transport machine. 8 is an operator room.

[0003]

In the above-mentioned conventional mobile crusher, rock is put into the hopper 10 by a shovel loader, and the rock is directly dropped from the hopper 10 to the crusher 30.

[0004] As a result, the amount of rock sent to the crusher 30 changes depending on the amount of input into the hopper 10, resulting in an undersupply or an oversupply of the crushing ability of the crusher 30. Further, there is a case where the rock is clogged in the hopper 10 and cannot be sent to the crusher 30. For this reason, stable crushing in the crusher 30 could not be secured, and it was difficult to improve crushing efficiency, and productivity was low.

It is an object of the present invention to improve the efficiency of crushing and to realize high productivity by ensuring a smooth and stable supply of crushed materials from a hopper to a crushing device. To provide machines.

[0006]

In order to achieve the above-mentioned object, the present invention provides a self-propelled crusher for crushing an object to be crushed.
And a frame and running means provided on the frame,
A crushing device provided substantially at the center in the longitudinal direction of the frame
And an engine disposed on one side in the longitudinal direction of the frame.
And down, and the hot <br/> path arranged in the other longitudinal side of the frame, between the lower side of the hopper and the crushing device, wherein
The crusher side is higher than the hopper side
A plurality of grids arranged side by side in the lateral direction of the frame
A grizzly feeder having a river, under the crushing device
A conveyor for carrying out the crushed material crushed by the crusher.
And In the present invention, the object to be crushed accepted by hopper, rather than leading directly to the crushing device, the frame
With multiple grizzly rivers arranged side by side in the short direction
It is conveyed to a crushing device by a grizzly feeder. Thereby, by appropriately setting or controlling the driving force for the vibration of the grizzly river, the supply amount of the crushed material to the crushing device is adjusted according to the crushing capacity and the crushing state of the crushing device regardless of the input amount of the crushed material. it can. That is, undersupply or oversupply can be prevented, and an appropriate amount of crushed material can be always supplied. Further, it is possible to prevent the crushed material from being clogged during the supply as in the prior art, which is directly led to the crushing device. In this way, a smooth and stable supply of the crushed object from the hopper to the crushing device can be secured, so that the crushing efficiency of the crushing device can be improved, and high productivity can be realized.
Also, by the grizzly feeder grizzly river,
For example, only those larger than the specified particle size are sorted out
Sent to the crusher, and those with a specific particle size
You can not send to. Therefore,
Prevention of increase in load on crushing equipment due to mixing of grains, earth and sand components, etc.
Crushing efficiency can be further improved.
it can. In addition, the grinding of the teeth of the crusher
Wear prevention is also possible, so the life of teeth can be improved
it can. In addition, the grizzly feeder is moved to the crushing device side.
Part is higher than the hopper side part (that is,
(So as to be upwardly inclined in the direction)
When transporting the crushed material placed on the Liz River,
Retention time can be extended, improving sorting performance .
There is also an effect that can be raised.

Preferably, the frames are arranged side by side in the lateral direction.
The plurality of grizzly rivers installed and arranged are
Two stages are arranged in the longitudinal direction .

[0008] Also preferably, the conveyor on one side
Extends below the crushing device and the other side extends to the engine side.
To be located.

[0009] Also preferably, said grizzly feeder
A chute is provided between the conveyor.

[0010]

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 5 show an embodiment according to the present invention, FIG. 1 is an overall side view of a mobile crusher,
FIG. 2 is a plan view of a vibration feeder with a hopper and a grizzly,
3 is a side view of a main part of the hopper, FIG. 4 is a longitudinal sectional view of the crusher, and FIG. 5 is a front view of the movable crusher. In the figure, 1 is a mobile crusher, 2 is a crawler, 2a is a track, 3 is a frame, 10 is a hopper, 20 is a vibrating feeder with a grizzly (also known as a grizzly feeder), 30 is a crusher (jaw crusher in this embodiment), 40 Is a transport machine (main conveyor), 50 is a vibrating sieve (also called a sand separator), 60 is an auxiliary transport machine (also called a side conveyor), 70 is a diesel engine, 80 is a fuel tank,
82 is an oil tank. In addition, a hydraulic unit (not shown) including a hydraulic motor is installed on the frame 3 in conjunction with the diesel engine 70.

The movable crusher 1 is mounted on a frame 3 of a crawler 2 traveling by an endless caterpillar 2a and a hopper 10 via column bases 10a and 10b and a vibration feeder 20 with a grizzly provided below the hopper 10. Have been. These hopper 10 and vibrating fee with grizzly
The damper 20, as shown in FIG.
(Right side in FIG. 1). As shown in FIGS. 1 to 3, the vibration feeder 20 with a grizzly
Of is provided between the lower and the crusher 30, a frame attached to the plate member 20c and the plate member 20c is placed a rock which is an object to be crushed accepted in hopper 10
A plurality of grizzly rivers 20a arranged side by side in the short direction of FIG. 3 at appropriate intervals are arranged in at least one stage (two stages in this embodiment). And each grizzly river 20a
, A large number of spaces 20d having open ends at the downstream side (the left side in FIGS. 1 to 3) in the transport direction are formed.
Among the rocks placed on c, only those having a predetermined grain size or less (that is, fine grains and earth and sand described in detail later) are selected and dropped on the chute 21 below. Further, the vibrating feeder 20 with a grizzly as a whole is slightly inclined upward toward the downstream side in the transport direction, and is inclined toward the downstream side ( side of the crusher 30).
Min.) Is higher than the upstream side (the hopper 10 side portion) (as is clear from FIGS.
The drive motor 20b
And a high-speed micro-vibration for conveying the load to the downstream side via a driving force transmission device (not shown) for transmitting the driving force to the plate member 20c. A chute 21 on the lower side of the vibrating feeder 20 with a grizzly receives a fine grain and a sediment content passed between the grease rivers 20a to further separate the fine grain and the sediment content. For example, a vibrating screen having a mesh of 10 mm is used. A chute 50 is provided below the vibrating sieve 50 for collecting the sieve under the sieve and dropping it to an auxiliary transport 60 protruding from the side surface of the mobile crusher 1. On the other hand, the vibrating sieve 50
A chute is provided so that the fine particles on the sieve fall into a transport machine 40 described later. Immediately downstream of the vibration feeder 20 with grizzly (specifically, the front and rear of the crusher in the frame 3)
A crusher 30 is disposed at a substantially central portion of the crusher 30, and the crushed product of the crusher 30 rises from the lower side toward the downstream side in the longitudinal direction of the mobile crusher 1 (that is, the crusher rises forward).
Side is below the crusher 30 and the rear side is the diesel engine.
A chute is provided so as to drop to a transporting machine (main conveyor) 40 ( disposed to extend to the gin 70 side ). In addition, a diesel engine 70 and a fuel tank 8 for storing light oil as a fuel oil of the diesel engine 70 are provided.
An oil tank 82 for storing hydraulic oil for hydraulic equipment and hydraulic equipment is fixedly provided on the downstream frame 3 ( on the rear side of the frame 3) . On both sides of the upper portion of the crusher 30, inspection landings 92 are provided so that an operator can go up and down via the stairs 90.

FIG. 4 shows a crusher (jaw crusher).
30 shows a fixed jaw 3 fixed to a casing 31
2 and a swing jaw 34 having an upper part attached to the eccentric rotary shaft 33. The rock is crushed by a fixed crush plate 35 attached to the fixed jaw 32 and a movable crush plate 36 attached to the swing jaw 34. . 33a is a flywheel (flywheel). A toggle plate 37 is connected to a support rod 38 attached to the frame 31 at a lower portion of the swing jaw 34. 39 is a toggle plate 3
Swing jaw 34 in order not to separate 7 from support rod 38.
Is a compression coil spring that pulls the lower end of the left side of FIG. In addition, the hopper 10 and the vibration feeder 20 with a grizzly may be integrated, and an inclined side wall may be provided at the top of the vibration feeder 20 with a grizzly.

In the above configuration, the mobile crusher 1 constitutes a self-propelled crusher, and is provided in front of the mobile crusher 1.
The rear direction corresponds to the longitudinal direction of the frame. And move
The rear side of the crusher 1 (the left side in FIG. 1) is the length of the frame.
One side in the hand direction, the front side of the mobile crusher 1
(Right side in FIG. 1) corresponds to the other side in the longitudinal direction of the frame.
You. In addition, the crusher 30 is moved in the longitudinal direction of the frame.
The crawler 2 constitutes a traveling means, and the transporting machine (main conveyor) 40 comprises
Side extends below the crushing device and the other side extends to the engine side
Conveyors arranged as described above. In addition, shoot
21 and the fine particles on the vibrating sieve 50 are dropped onto the transporter 40
The shoot to be made is between the grizzly feeder and the conveyor.
It constitutes a chute provided between them.

The operation of the mobile crusher of the present invention configured as described above will be described. Mobile crusher 1
The front end (right side in FIG. 1) is directed to the mining site, and after the diesel engine 70 is started to confirm the start of each device, the collected rock is supplied to the hopper 10 by a transport machine such as a shovel loader. At this time, some of the supplied rock contains sediment and sand already mixed in the blast at the mining site,
It contains fine particles crushed to about m. While the rock received by the hopper 10 is moved to the crusher 30 by the vibrating feeder 20 with a grizzly, it is first sorted between the grizzly rivers 20a, and the fine particles and the sediment fall into the chute 21. And the fines are transferred to the main conveyor 40, and the sediment is transferred to the side conveyor 60. Vibration feeder 2 with grizzly
The rock that has entered the crusher 30 due to 0 is crushed into fine particles set to a prescribed size, and is transported by the main conveyor 40 by subsequent transportation means, for example, a long belt conveyor or the like.

As described above, in the mobile crusher 1 of the present invention, when the rock is crushed by the crusher 30, the rock received by the hopper 10 is directly crushed by the crusher 3.
Instead of being guided to zero, the paper is conveyed to the crusher 30 by the feeder 20 using the driving force of the driving motor 20b.
Thereby, by appropriately setting or controlling the rotational driving force of the drive motor 20b and adjusting the frequency of the high-speed minute vibration,
The amount of rock supplied to the crusher 30 can be easily adjusted according to the crushing capacity and the crushing state of the crusher 30 irrespective of the amount of rock input. Therefore, undersupply and oversupply are prevented,
We can always supply the right amount of rock. Further, it is possible to prevent rock clogging during supply as in the prior art shown in FIGS. 6 and 7 in which the rock is directly guided to the crusher 30. In this way, a smooth and stable supply of rock from the hopper 10 to the crusher 30 can be ensured, so that the crushing efficiency of the crusher 30 can be improved and high productivity can be realized.

Further, for example, when any foreign matter (for example, a piece of wood or a reinforcing bar) that is difficult or impossible to crush is mixed into the crusher 30 and the crushing is hindered,
Must be stopped to remove the foreign matter from inside the crusher 30. In the prior art shown in FIGS. 6 and 7, even if the charging into the hopper 10 is stopped, the already input rock is crushed by the crusher 30 from the inlet of the hopper 10 through the outlet.
In the meantime, it was filled in a large amount, and all of them had to be removed before reaching the foreign matter, which required a lot of work. On the other hand, in the mobile crusher 1 of the present invention, if the feeder 20 is stopped immediately, the supply from the feeder 20 to the crusher 30 is stopped, so that only the rock staying on the foreign matter in the crusher 30 can be removed. Is enough. Therefore, work labor can be significantly reduced.

Further, for example, in the crusher 30, the rocks mesh with each other in time, and do not happen to be crushed by the relative movement of the fixed / movable crushing plates 35, 36, but merely lift up between the crushing plates 35, 36. In some cases (a so-called bridge state).
In such a case, after temporarily stopping the crusher 30,
Generally, an operator applies an impact such as a work tool to the engaged rock to restore the crushing ability of the crusher 30. Also in this case, as in the above, a great deal of labor is required for removing a large amount of rocks in the prior art, whereas the mobile crusher 1 of the present invention can greatly reduce the labor.

For example, when a rock is thrown in by a hopper 10 shovel loader, the rock is still collected at a mining site or at a face, and is a large block of about 700 mm. For this reason, in the related art shown in FIGS. 6 and 7 in which the crusher 30 is directly guided from the hopper 10 to the crusher 30, a large impact load is applied to the crushed portion of the crusher 30 disposed immediately below the hopper 10, thereby damaging the equipment and reducing the life. Problems such as shortening occur. On the other hand, in the mobile crusher 1 of the present invention, the rock put into the hopper 10 falls to the robust grizzly vibrating feeder 20 and is supplied to the crusher 30 on the downstream side by the transport action thereof. An unnecessarily large impact load or integrated load is not applied to the crusher 30, which is advantageous in protecting the equipment.

Further, the supplied rock received by the hopper 10 contains sediment and fine particles as described above. For this reason, in the prior art shown in FIGS. 6 and 7 in which the crusher 30 is directly guided from the hopper 10 to the crusher 30, they are supplied to the crusher 30 together with the massive rock, and the load on the crusher 30 is significantly increased due to sediment, and the crush plate 35, There were problems such as abrasion of 36 teeth, unnecessary crushing work by supplying fine granules together with large lumps, and mixing of sediment into crusher crushed products. On the other hand, in the mobile crusher 1 of the present invention, before the rock is crushed by the crusher 30, fine particles and sediment are removed by the vibrating feeder 20 with a grinder in advance, and only large blocks are crushed by the crusher 30. You. This allows
Since it is possible to prevent an increase in the load on the crusher 30 due to mixing of fine particles, earth and sand, and the like, the crushing efficiency can be further improved. In addition, fixed / movable crushing plates 35,
Since it is also possible to prevent wear of the 36 teeth, the life of the teeth can be improved. Fine particles that do not need to be crushed fall from the grizzly river 20a before being sent to the crusher 30 and are removed in advance. Since it is efficient and the generation of unnecessary fine particles can be prevented, a high-quality aggregate can be produced.

Furthermore, in the movable crusher 1 of the present invention, the downstream end (left side in FIGS. 1 to 3) in the transport direction of the many spaces 20d formed between the respective grizzle rivers 20a is opened. For example, as compared with a case where a mesh structure is provided as a sorting means, it is less likely that a rock conveyed to the crusher 30 will move, and smoother conveyance can be ensured. In addition, the vibration feeder 20 with a grizzly
Since the whole is higher on the downstream side than on the upstream side, the plate member 20c and the grizzly river 20
The residence time of the rock as it flows over a can be lengthened. Therefore, the sorting function by the grizzly river 20a can be improved.

In the above embodiment, a grizzly
The fine granules and the earth and sand sorted by the vibrating feeder 20
Is further separated into fine particles and earth and sand.
, But not limited to this, with grizzly
Fine grain and sediment sorted by vibrating feeder 20 are directly transferred
You may make it introduce | transduce into the transmitter 40. In this case, too,
The same effect is obtained. In the above embodiment, the present invention
The hopper 10 is provided on the front side of the frame 3 to
After the frame 3 on the conveyor (transportation machine 40)
So-called front-in / out-out type
The explanation has been given by taking as an example the case of application to a traveling crusher.
It is not limited to this, but in front of frame 3 on a conveyor
The crushed material is carried out to one side, that is, to the same side as the hopper 10.
Applicable to so-called front-in / front-out type self-propelled crusher
And a similar effect is obtained in this case. In addition,
In the embodiment, the crusher 30 corresponds to a fixed tooth.
Oscillating teeth and crushing between them
Explanation of a self-propelled crusher equipped with a crusher
However, the present invention is not limited to this.
High-speed rotation of the striking plate with blades
Impact the crushed object using the impact of
Self-propelled with a so-called impact crusher
It is also applicable to a crusher. In this case, the same effect
Get fruit. Further, in the above-described embodiment, the mobile crusher 1 which targets rock extracted from a rock mining site or a face as an object to be crushed has been described as an example, but is not limited thereto. That is, for example, crushers that use large and small rocks, construction waste, or industrial waste generated at construction sites, such as concrete lumps carried out when dismantling buildings and asphalt lumps discharged during road repairs, are crushed objects. The invention can be applied, and in these cases, a similar effect is obtained.

[0023]

As described above, the self-propelled crusher according to the present invention, as described above , breaks the space between the lower part of the hopper and the crusher.
So that the crusher side is higher than the hopper side.
Multiple grizzly rivers arranged side by side in the
Since the grizzly feeder is provided, a smooth and stable supply of the material to be crushed from the hopper to the crushing device is ensured, thereby improving the crushing efficiency and realizing high productivity.

[Brief description of the drawings]

FIG. 1 is an overall side view of a mobile crusher according to an embodiment of the present invention.

FIG. 2 is a plan view of a hopper and a vibrating feeder with a grizzly according to the embodiment of the present invention.

FIG. 3 is a side view of a main part of the hopper according to the embodiment of the present invention.

FIG. 4 is a longitudinal sectional view of a crusher according to the embodiment of the present invention.

FIG. 5 is a front view of the mobile crusher according to the embodiment of the present invention.

FIG. 6 is an overall side view of a conventional mobile crusher.

FIG. 7 is a side view of a crusher (jaw crusher) mounted on a conventional mobile crusher.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Mobile crusher 2 Crawler 2a Caterpillar 3 Frame 10 Hopper 20 Vibration feeder with grizzly (grizzly feeder) 20a Grizzly river 20b Drive motor 20c Plate member 20d Space 21 Chute 30 Crusher 31 Casing 32 Fixed jaw 33 Eccentric rotating shaft 33a Fly Swing jaw 35 Fixed crushing plate 36 Movable crushing plate 37 Toggle plate 38 Supporting rod 39 Compression coil spring 40 Transporter (main conveyor) 50 Vibrating sieve (sand separator) 60 Auxiliary transporter (side conveyor) 70 Diesel engine 80 Fuel tank 82 Oil Tank 90 stairs 92 landing

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kazuki Kurari 1980, Ogaki, Ogushi, Ube City, Ube City, Yamaguchi Prefecture Ube Machinery Works, Ube Industries, Ltd. (56) References JP-A-52-154167 (JP, A) JP-A-60-139347 (JP, A) JP-A-57-130576 (JP, A) JP-A 54-87483 (JP, U) JP-A 52-75869 (JP, U) (58) (Int.Cl. ⁷ , DB name) B02C 21/02 B07B 1/00-15/00

Claims (4)

(57) [Claims] 1. A self-propelled crusher for crushing an object to be crushed.
A frame; a traveling means provided on the frame; and a crushing device provided substantially at the center in the longitudinal direction of the frame.
And an engine arranged on one side in the longitudinal direction of the frame
When a hopper arranged in the other longitudinal side of the frame, between the lower side of the hopper and the crushing unit, the crushing instrumentation
So that the storage side part is higher than the hopper side part.
Multiple grizzly rivers arranged side by side in the transverse direction of the frame
And a crushed material crushed by the crushing device below the crushing device.
Mobile crusher, characterized in that a conveyor for unloading a. 2. The self-propelled crusher according to claim 1, wherein
The plurality of grids arranged side by side in the short direction of the frame
The river is arranged in two stages in the longitudinal direction of the frame.
A self-propelled crusher characterized by the following: 3. The self-propelled crusher according to claim 1 or 2,
And one side of the conveyor is below the crushing device.
And the other side is arranged so as to extend to the engine side.
A self-propelled crusher characterized by the following. 4. The self-propelled crusher according to claim 1, wherein
Between the grizzly feeder and the conveyor.
A self-propelled crusher characterized by having a mute.