JPH09220488A - Self-traveling crushing machine and its operating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a self-traveling crushing machine having a hopper constituted to allow loading of the materials to be crushed into the self-traveling crushing machine by using a machine for charging the materials to be crushed by means of a bucket of a relatively low lift. SOLUTION: A hopper 8 for accepting the materials to be crushed is constituted as an open end 8c lacking the side plate 8a on its one end side. The hopper 8 is mounted freely vertically turnably around a supporting shaft 10 on the open end 8c side from an up position (a) which is the posture for charging the materials to be crushed to a crushing section to a down position (b) which is the posture to accept the materials to be crushed in the hopper 8. The machine is provided with a driving device, such as hydraulic cylinder 11, etc., for vertically moving the hopper 8.

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 for crushing crushed objects such as crushed stones, asphalt lumps, various kinds of wastes, etc., and particularly to throwing crushed objects into the crushing section of the self-propelled crusher. Hopper and its operating device.

[0002]

2. Description of the Related Art FIG. 5 is a perspective view of a dismantling and crushing site showing an example of use of a self-propelled crusher 30, in which a concrete building 32 is crushed by the dismantling machine 31, and a concrete block generated by the crushing is backhoe bucket. The hydraulic shovel 34 having 33 shows a situation in which the hopper 35 of the self-propelled crusher 30 throws the crusher into a crushing section and crushes finely. The crushed debris 36 crushed by the self-propelled crusher 30 is loaded on a dump truck (not shown) by a wheel loader (not shown) having a lower lift of the bucket and a larger capacity than the hydraulic excavator 34.

[0003]

In the conventional self-propelled crusher, as described above, the hopper 3 of the self-propelled crusher 30 is used.
5, the lifting height of the bucket 33 of the hydraulic excavator 34, and the lifting height of the bucket of the wheel loader, the hydraulic shovel 34 is used to load the crushed material into the self-propelled crusher 30 and the crushed scrap 36 is dumped. The loading on the truck is done by the wheel loader. Therefore, a trader who crushes using the self-propelled crusher 30 needs to prepare two machines, a hydraulic excavator and a wheel loader.

It is a first object of the present invention to provide a self-propelled crusher having a hopper having a structure capable of loading crushed objects on the self-propelled crusher by a wheel loader. A second object of the present invention is to provide an operating device capable of easily operating the hopper.

[0005]

In order to achieve the first object, the invention of claim 1 comprises a hopper for receiving an object to be crushed as an open end in which a side plate on one end side is cut off. The hopper can be rotated up and down about the support shaft on the open end side from a raised position, which is a posture of loading the crushed object to the crushing portion, to a lowered position, which is a posture of receiving the crushed object to the hopper. And a drive device for moving the hopper up and down.

The invention of claim 2 is characterized in that the free end side of the hopper is formed wider than the open end side attached to the support shaft. The invention of claim 3 is characterized in that a device for swinging at least the bottom plate of the hopper so that its free end side is lifted is provided. The invention of claim 4 is characterized in that a mirror for monitoring the state of inputting the crushed object to the crushing section is attached to the crusher from the crushed object input machine side located at the free end side of the hopper.

According to a fifth aspect of the invention, in order to achieve the second object, a transmitter for transmitting an operation signal of the hopper is provided on the side of the crushed object charging machine, and a receiver for receiving the operation signal on the crusher side. And a device for operating the hopper by the output of the receiver.

[0008]

According to the first aspect of the present invention, the hopper is lowered when the material to be crushed is fed into the hopper from the material to be crushed, and the hopper is raised when the material to be crushed is fed into the crushing section from the hopper. Therefore, it is possible to load the crushed material into the hopper by a wheel loader or the like having a low bucket lift.

In the second aspect, since the free end side of the hopper is made wider than the open end (pivot end) side, it is possible to easily insert the crushed material into the hopper with a wide bucket like a wheel loader. In the third aspect, by swinging the hopper in the raised position, the material to be crushed in the hopper can be gradually fed into the crushing section. Claim 4
In the above, since the crusher is equipped with a mirror that monitors the state of loading the crushed material into the crushing section from the crushed material loading machine side located at the free end side of the hopper, the loading machine with a low cab Even in this case, the crushing condition can be easily monitored, and the crushed object can be supplied to the crushing section without excess or deficiency.

According to the present invention, the hopper is operated by transmitting the operation signal from the throwing machine to the self-propelled crusher, so that the operator of the throwing machine can operate the hopper.

[0011]

1 is a side view showing an embodiment of a self-propelled crusher according to the present invention, and FIG. 2 is a partial plan view thereof. In the present invention, a crushing unit such as a jaw crusher can be used as the crushing unit, but the self-propelled crusher 1 of the embodiment is used.
Is a crushing roll 3 in which the crushing section 2 is provided with a cutter 3a on the outer periphery.
Further, in the present embodiment, the crushing section 2 is composed of a primary crushing section 2a and a secondary crushing section 2b below the crushing section 2 and the crushing rolls 3 and the cutter 3a of the primary crushing section 2a The intervals between the crushing rolls 3 and the cutters 3a of the secondary crushing unit 2b are set to be narrow, and the number of the crushing rolls 3 of the secondary crushing unit 2b is made larger than the number of the crushing rolls 3 of the primary crushing unit 2a. This enables crushing work to be performed efficiently and finely. With such a two-step stance, the upper end of the crushing unit 2, that is, the height of the hopper 8 described later, is unavoidable.

Further, in this embodiment, each crushing roll 3 is driven to rotate by its own hydraulic motor 4, so that the rotation direction, rotation speed, and torque of each crushing roll 3 can be set independently. This makes it possible to perform a suitable crushing work depending on the material of the crushed object, but of course, one electric motor or hydraulic motor may drive a plurality of crushing rolls. Self-propelled crusher 1
A primary conveyor 6 is provided between the left and right crawlers of the lower traveling body 5 for discharging the crushed waste to the outside, and a secondary conveyor 7 is installed in a direction perpendicular to the primary conveyor 6.

Numeral 8 is a hopper for charging the crushed material into the crushing section 2. One end of the hopper 8 is an open end 8c without a tapered side plate 8a (8b is a bottom plate). Is attached to one side portion (front portion) of the rectangular crushable object guide 9 so as to be vertically rotatable about the support shaft 10.

Between the vehicle body 1a of the self-propelled crusher 1 and the hopper 8, a hydraulic cylinder 11 as a drive device for moving the hopper 8 up and down is attached. As the driving device, a device including a hydraulic motor and a device for converting the rotation thereof into vertical rotation about the support shaft 10 of the hopper 8 may be used. The rising position of the hopper 8 shown by the chain double-dashed line a in FIG.
The position where the crushed material is put into the crushing unit 2 from the hopper 8, and the lowered position shown by the solid line b is the position where the crushed material is received from the bucket 13 of the wheel loader 12, which is the crushed material input machine, into the hopper 8. Is. Furthermore, the two-dot chain line c
Is a position where the hopper 8 is substantially horizontal, and this position c
The object to be crushed in the hopper 8 is introduced into the crushing section 2 by repeating the rocking between the rising position a and the rising position a. This rocking repeats the expansion and contraction of the hydraulic cylinder 11 in the vicinity of the maximum extension state. It is done by

FIG. 3 shows a hydraulic electric circuit for driving the hydraulic cylinder 11, 15 and 16 are hydraulic pumps and control valves mounted on the self-propelled crusher 1, and 18 is the self-propelled crusher 1.
It is a vertical movement operation signal generation circuit provided in the upper cab 17, and the solenoids 16a and 16b of the control valve 16 are energized by operating the operating means 18a, whereby the hydraulic cylinder 11 is expanded and contracted to raise or lower the hopper 8. It is what makes me. Reference numeral 19 denotes a swing operation signal generating circuit, which is operated by operating the operating means 19a so as to swing between the raised position a and the substantially horizontal position c shown in FIG.
A signal for alternately energizing the solenoids 16a and 16b is generated.

In this structure, when the material to be crushed is loaded into the hopper 8 from the material to be crushed object, the operator of the self-propelled crusher 1 operates the operating means 18a of the vertical operation signal generating circuit 18 to control the control valve. 16 is switched to the left position, the hopper 8 is lowered, and the operator of the wheel loader 12 puts the object to be crushed into the hopper 8. When the object to be crushed is put into the crushing section 2 from the hopper 8, the control valve 16 is moved to the right position. To raise the hopper 8 and then to operate the operating means 19a of the swing operation signal generating circuit 19 to automatically switch the control valve 16 alternately between the right position and the left position to swing the hopper 8. The object to be crushed in the hopper 8 is supplied to the crushing unit 2. That is, the swing of the hopper 8 serves to supply the crushed material to the crushing section 2 in a fixed amount.

Further, in this embodiment, the mirror 20 is attached to the upper side of the guide 9 of the crushing section 2 on the side opposite to the hopper 8, and the wheel loader 1 located on the free end side of the hopper 8.
The operator of the wheel loader 12 monitors the mirror 20 from the operator of No. 2 and the primary crushing unit 2 through the mirror 20.
Since the material to be shredded is supplied to the hopper 8 while watching the supply status of the material to be shredded to a, the supply of the material to be shredded is performed without excess or deficiency.

Further, in the present embodiment, since the operator of the wheel loader 12 can operate the hydraulic cylinder 11, the transmitter 21 for transmitting the operation signal of the hydraulic cylinder 11 to the wheel loader 12 to the self-propelled crusher 1. A receiver 22 for receiving the operation signal is provided on the side of the self-propelled crusher 1, and the vertical movement operation signal generating circuit 18 or the swing operation signal generating circuit 19 is operated according to the content of the received signal to operate the hydraulic cylinder. 11 can be raised or lowered, or the hydraulic cylinder 11 can be repeatedly expanded and contracted to swing the hopper 8 to save labor.

Further, in the present embodiment, like the bucket 13 of the wheel loader 12, as shown by W1 in FIG. W2 is made wider than the width W1 of the bucket 13, while the open end (pivot end) 8c side is formed to have a width matching the guide 9, and as a result, formed wider than the free end side width than the free end side width. doing. Thus, by forming the hopper 8 in a tapered shape, it is possible to handle a wide bucket.

In the above embodiment, the hopper 8 is attached to the front part of the self-propelled crusher 1 (projecting side of the primary conveyor 6) with respect to the crushing part 2, but as shown in FIG. The hopper 8 may be attached to the side surface of the self-propelled crusher 1. If the hopper 8 is attached to the side surface of the self-propelled crusher 1, the attachment structure of the secondary conveyor 7 may remain the same as that of the primary conveyor 6 as in the conventional case.

In the above embodiment, the wheel loader 12 was used as the crushed material charging machine. However, if there is a bucket lifting height that can supply the crushed material to the hopper 8 when the hopper 8 is set to the lowered position, Other dosing machines can be used. The present invention is also applied to a hopper configured as a feeder for supplying the crushed material on the bottom plate 8b to the crushing unit 2 by reciprocating the bottom plate 8b toward the crushing unit 2. Further, the vertical movement device between the a and b positions (or the a and c positions) of the hopper 8 and the swinging device between the a and c positions may be configured by different driving devices. Also,
The vertical swing may be performed only for the bottom plate 8b.

[0022]

According to the first aspect of the present invention, since the hopper is mounted so as to be movable up and down with the open end side as a support shaft, the crusher is put into the crushing portion by using a crushed object feeder such as a wheel loader having a low lift. Since the crushed material can be loaded, loading into the dump truck and loading of the crushed material into the self-propelled crusher can be performed by one loading machine, and the working efficiency of the loading machine can be improved and the economy can be achieved.

According to the second aspect of the invention, since the free end side of the hopper is formed wider than the open end side attached to the support shaft, the loading machine having a wide bucket like a wheel loader changes from the loading machine having a narrow bucket. It can support various loading machines with different bucket widths.

According to the third aspect, since the device for swinging the hopper or the bottom plate in the raised state is provided, the crushed object in the hopper is gradually fed into the crushing portion by swinging the hopper. Therefore, it is possible to supply a constant amount to the crushing unit which is suitable for the capacity of the crushing unit.

According to the fourth aspect of the present invention, the crusher is provided with a mirror for monitoring the state of charging the crushed material to the crushing portion from the crushed material charging machine located at the free end side of the hopper. Even if the input machine is low in height, the crushing condition can be easily monitored, and the crushed material can be supplied to the crushing section without excess or deficiency.

According to the fifth aspect of the invention, since the operation signal is transmitted from the throwing machine to the self-propelled crusher to operate the hopper, the operator of the throwing machine can operate the hopper, thereby saving labor. .

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a self-propelled crusher according to the present invention.

FIG. 2 is a partial plan view of the self-propelled crusher of this embodiment.

FIG. 3 is a hydraulic electric circuit diagram for driving a hopper of the present embodiment.

FIG. 4 is a rear view showing another embodiment of the self-propelled crusher according to the present invention.

FIG. 5 is a perspective view of a demolition crushing site showing an example of use of a conventional self-propelled crusher.

[Explanation of symbols]

1: Self-propelled crusher, 2: Crusher, 2a: Primary crusher, 2
b: secondary crushing section, 3: crushing roll, 6: primary conveyor,
7: Secondary conveyor, 8: Hopper, 8c: Open end, 9: Guide, 10: Support shaft, 11: Hydraulic cylinder, 12: Wheel loader, 13: Bucket, 15: Hydraulic pump, 16: Control valve, 18: Operation Chamber, 18: vertical movement operation signal generation circuit, 19: rocking operation signal generation circuit, 20: mirror,
21: transmitter, 22: receiver

Claims (5)

[Claims] 1. A hopper for receiving an object to be crushed is configured as an open end in which a side plate on one end side is cut off, and the hopper is connected to a crushing portion of the object to be crushed around a spindle on the open end side. Self-propelled, which is mounted so as to be vertically rotatable from a raised position, which is a throwing posture, to a lowered position, which is a posture in which the crushed object is received into the hopper, and which is provided with a drive device for vertically moving the hopper. Type crusher. 2. The self-propelled crusher according to claim 1, wherein the free end side of the hopper is formed wider than the open end side attached to the support shaft. 3. The self-propelled crusher according to claim 1, further comprising a device for vertically swinging at least a bottom plate of the hopper so that a free end side thereof is lifted. 4. The crusher according to any one of claims 1 to 3, wherein the crusher is equipped with a mirror for monitoring the state of loading the crushed material into the crushing section from the crushed material charging machine side located at the free end side of the hopper. A self-propelled crusher characterized by being installed. 5. The crusher input device side is provided with a transmitter for the operation signal of the hopper, and the crusher side is provided with a receiver for receiving the operation signal. An operating device for a self-propelled crusher, which is provided with a device for operating a hopper by the output of a receiver.