JP2001190980A - Self-propelled crusher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the work efficiencies by ensuring the continuous treatment performance and the smoothness of the whole of a crushing operation, without lowering mobility and transportability. SOLUTION: In the self-propelled crusher wherein matters to be crushed fed to a hopper 1 provided on the front side of the crusher of a truck frame 8 are admitted into a jaw crusher 2, where the matters are crushed and conveyed to the rear of the crusher by a conveyor 6, a power unit 34 is disposed at the rear of the crusher of the frame 8, and in an area on the rear side of the crusher of the unit 34, hydraulic pumps 24, 25, an engine 23, and a heat exchanger 35 are arranged, side by side, in the left and right directions of the crusher. In an area before the crusher of the unit 34, a driver's seat 42, a control valve device 41, and a tank device 40 are provided, side by side, in the left and right directions of the crusher, and side edges 43A, 44A of the tank device 40 before the crusher are positioned rearward of a side edge 41A of the control valve device 41 before the crusher or at the same position as the edge 41A.

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 provided with a crushing device for crushing an object to be crushed, such as a jaw crusher, an impact crusher, a roll crusher, and a shredder. And a self-propelled crusher in which a power body and a conveyor are arranged on the other side of the main body frame.

[0002]

2. Description of the Related Art Crushers are used to construct various types of construction waste materials, industrial waste, rock mining sites, etc., which are generated at construction sites such as concrete blocks taken out during building demolition and asphalt blocks discharged during road repair. Rocks and natural stones mined by a face are crushed to a predetermined size at the work site before transportation.

[0003] In such a crusher, a self-propelled crusher in which the crusher can be driven by itself and which has mobility has been already proposed based on the background of difficulty in securing land for the crushing plant or decentralized land. Have been. This self-propelled crusher crushes a crushed object put into a hopper provided on one side (front side) in a longitudinal direction of a main body frame, for example, through a feeder into a crushing device, and crushes the crushed material. To carry out. When the crushed material contains a magnetic material, for example, a magnetic separator is provided above the conveyor, and the magnetic material contained in the crushed material being transported by the conveyor is magnetically sucked and removed.

In this self-propelled crushing machine, a hydraulic pump serving as a hydraulic source for a hydraulic actuator for driving the crushing device and the conveyor, an engine for driving the hydraulic pump, and a heat exchanger including a radiator of the engine are usually provided. Device, a control valve device for controlling the flow of pressure oil from the hydraulic pump to the hydraulic actuator, a tank device including a hydraulic oil tank for storing the pressure oil and a fuel tank for the engine, and operating the control valve device The driver's seat or the like provided with an operating means for performing the operation is provided in view of the weight balance with the hopper arranged on the front side of the main body frame or the prevention of interference when the crushed object is put into the hopper by another machine such as a hydraulic shovel. On the other side (rear side) in the longitudinal direction of the main body frame, a power unit (power unit) That.

[0005] In a recent self-propelled crusher, as described in Japanese Patent Application Laid-Open No. H10-15423, for example, the conveyor is also provided at the rear side of the main body frame so that the crushed material is carried out to the rear side. It has become. At this time, the conveyor is arranged so as to rise obliquely in the space below the power body in the unloading direction (rearward of the crusher), and particularly, the middle portion of the conveyor is relatively positioned below the outer edge (rear end) of the power body. It is arranged to be close. With such a structure, the conveyor does not hinder the work of charging the hopper with the excavator or the like, and the crushable material is charged into the hopper from three directions of the self-propelled crusher. The crushed material can be carried out to a place remote from the crushed material. Therefore, there is an advantage that the degree of freedom in layout at the work site is increased. This structure also has an effect that an operator who performs maintenance of the magnetic separator can be kept out of the working range of the hydraulic excavator.

[0006]

In the above-mentioned prior art self-propelled crusher, from the above-mentioned viewpoint, the hopper is disposed at the front side of the main frame, and the power body and the conveyor are disposed at the rear side of the main frame. Has been placed. At this time, in the power body, the engine, the hydraulic pump, and the heat exchanger device (however, there is no clear description) are arranged side by side in the lateral direction (lateral direction) of the main body frame in the rear region. The driver's seat, the control valve device, and the tank device are arranged in a side region.

However, this conventional technique has the following problems.

In the above-described prior art self-propelled crusher, a tank device is provided at the right end of the power body in the front region, and a driver's seat and a control valve device are provided at the left end. At this time, since the two tanks are arranged side by side in the front-rear direction at the right end, the front-rear dimension of the tank device is relatively large, while the left end is below the front of the driver's seat (below the floor). Because the control valve device and the substantial driver's seat space are arranged side by side in the front-rear direction due to the structure in which the control valve device is provided, the dimension in the front-rear direction is large.
These all contribute to an increase in the front-rear dimension of the front region, and as a result, the front-rear dimension of the power body is relatively large.

[0009] Here, in general, the higher the height position of the conveyor side end of the conveyor, the more crushed materials to be carried out and dropped can be piled up and stored (stocked). Further, when the height position is relatively high, there is an advantage that the crushed material can be transported by another working machine, for example, a wheel loader. In the above prior art,
Although the conveyor is disposed below the power body, the forward and backward dimensions of the power body are relatively large as described above. Unloading side (rear side)
The height of the end from the ground is relatively low. For this reason, the space below the rear end of the conveyor is filled with the crushed material within a short time after the start of the crushing operation, and the subsequent crushing operation becomes impossible, and the operation must be temporarily interrupted.
As a result, there is a problem that the continuous processability and smoothness of the entire crushing operation are impaired, and the operation efficiency is reduced.

Here, it is conceivable to provide a stationary secondary conveyor separately on the downstream side of the conveyor, thereby increasing the height position of the conveyor discharge side end. In this case, the stationary secondary conveyor is used. By using the secondary conveyor, the original mobility of the self-propelled crusher is lost, and it is necessary to transport not only the self-propelled crusher but also its secondary conveyor during transportation, which deteriorates the transportability. Problems arise. Also,
Although it is not conceivable to raise the height direction position of the discharge side end by extending the entire length of the conveyor in the conveyance direction (rearward) as it is, as described above, the inclination angle of the conveyor in the discharge direction is small (small). Therefore, the length of the rearward projection becomes significantly longer. Therefore, the size of the entire self-propelled crusher in the front-rear direction is increased, and the transportability is reduced. In addition, the weight balance of the entire self-propelled crusher is deteriorated, and the stability is reduced. In addition, since the size of the crusher in the longitudinal direction is regulated by laws and regulations, there is a limit in extending the conveyor to the length in the transport direction.

Further, it is inevitable to increase the inclination angle of the conveyor in the unloading direction by increasing the height of the disposition of the power bodies (raising the height). In this case, however, the height of the entire self-propelled crusher is increased. Since the size in the direction is increased, the transportability is reduced as described above. In particular, interference with structures around the road during transportation is feared, which is not preferable.

An object of the present invention is to solve the above problems,
An object of the present invention is to provide a self-propelled crusher capable of ensuring continuous processing and smoothness of the entire crushing operation and improving work efficiency without lowering mobility and transportability.

[0013]

Means for Solving the Problems (1) In order to achieve the above object, according to the present invention, a crushed object introduced into a hopper provided on one longitudinal side of a main body frame is introduced into a crushing device and crushed. A self-propelled crusher that conveys the crushed material to the other side in the longitudinal direction of the main body frame by a conveyor, wherein a hydraulic pump serving as a hydraulic source for a hydraulic actuator that drives the crushing device and the conveyor; An engine that drives a pump, a heat exchanger device including a radiator of the engine, a control valve device that controls a flow of pressurized oil from the hydraulic pump to the hydraulic actuator, a hydraulic oil tank that stores the pressurized oil, and A power body having a tank device provided with a fuel tank of the engine and a driver seat provided with operating means for operating the control valve device is provided in the longitudinal direction of the main body frame. The hydraulic pump, the engine, and the heat exchanger device are arranged on the other side, and in one of the longitudinal direction one side region and the longitudinal direction other side region of the power body, the hydraulic pump, the engine, and the heat exchanger device are arranged in the body frame lateral direction. And the driver's seat, the control valve device, and the tank device are juxtaposed in the short direction in the other region, and the position of the edge of the tank device on one side in the longitudinal direction. To the other side in the longitudinal direction of the control valve device from the position of the edge on the one side in the longitudinal direction, or the same position in the longitudinal direction.

When the power body and the conveyor are provided on the other side (rear side) in the longitudinal direction of the main body frame, the conveyor usually moves the space below the outer edge (rear end) of the power body in the unloading direction (rearward of the crusher). They are arranged so as to stand up diagonally.

At this time, in the present invention, when the driver's seat, the control valve device, and the tank device are arranged in one side (front side) or the other side (rear side) in the longitudinal direction of the power body, these three parts are arranged. They are arranged side by side in the short direction (left-right direction). That is, the driver's seat, the control valve device, and the tank device are arranged side by side. As a result, the longitudinal dimension required for the arrangement of the driver's seat and the control valve device is reduced compared to the conventional structure in which the control valve device and the substantial driver's seat space are arranged side by side in the longitudinal direction. Can be. Then, the position of the edge on one side (front side) in the longitudinal direction of the tank device is set to the other side (rear side) in the longitudinal direction of the position of the edge on one side (front side) in the longitudinal direction of the control valve device. Or the same position, the tank device installation space is prevented from protruding from the range within the reduced front-rear dimension for the driver's seat / control valve device arrangement.

As described above, it is possible to reduce the front-rear dimension of the region where the driver's seat, the control valve device, and the tank device are arranged in the power body, so that the front-rear size of the power body can be reduced. As a result, as described above, the inclination angle of the conveyor disposed below the power unit in the unloading direction can be made relatively large, so that the entire length of the conveyor can be extended in the transport direction (rearward) or the height of the power unit arrangement can be increased. Even if the height of the conveyor is not increased, the height of the end of the conveyer on the unloading side (rear side) from the ground can be sufficiently set, and there is no need to provide a stationary secondary conveyor. That is, the continuous processing and smoothness of the entire crushing operation can be ensured without lowering the mobility and transportability, thereby improving the operation efficiency.

(2) In the above (1), preferably,
In the tank device, the hydraulic oil tank and the fuel tank are juxtaposed in the longitudinal direction.

(3) In order to achieve the above object, the present invention provides a crusher in which a crushed object put in a hopper provided on one longitudinal side of a main body frame is introduced into a crushing device and crushed. A self-propelled crusher that carries the crusher to the other side in the longitudinal direction of the main body frame by a conveyor, a hydraulic pump serving as a hydraulic source for a hydraulic actuator for driving the crushing device and the conveyor, and an engine for driving the hydraulic pump. A heat exchanger device including a radiator of the engine, a control valve device for controlling a flow of pressurized oil from the hydraulic pump to the hydraulic actuator, a hydraulic oil tank for storing the pressurized oil, and a fuel tank for the engine A power unit having a tank device provided with the main body frame on the other side in the longitudinal direction, the one side region in the longitudinal direction of the power unit and the length The hydraulic pump, the engine, and the heat exchanger device are arranged side by side in the lateral direction of the main body frame in one region of the other region in the direction, and the control valve device and the tank device are arranged in the other region. And the tank device has the hydraulic oil tank and the fuel tank arranged side by side in the short direction.

In the present invention, when the control valve device and the tank device are arranged in one (longitudinal) or one (longitudinal) region in the longitudinal direction of the power body, the two are arranged in the short direction (lateral direction). The hydraulic oil tank and fuel tank of the tank device are also arranged side by side in the lateral direction. That is, the control valve device, the hydraulic oil tank, and the fuel tank are arranged side by side. This makes it possible to reduce the size in the front-rear direction required for disposing the tank device, compared to a conventional structure in which two tanks are arranged in the front-rear direction in the tank device. Therefore, it is possible to reduce the front-rear dimension of at least the region where the control valve device and the tank device are arranged in the power body, so that the front-rear dimension of the power body can be reduced.

Therefore, similarly to the above (1), as described above, the inclination angle in the carrying-out direction of the conveyor disposed below the power unit can be made relatively large, so that the mobility and transportability are not reduced. The continuous processability and smoothness of the entire crushing operation can be ensured, whereby the operation efficiency can be improved.

(4) In the above (3), preferably,
A driver's seat provided with operating means for operating the control valve device is provided at an end of the power body on the other side in the short direction.

(5) In the above (4), more preferably, the fuel tank is provided at one end of the power body in the short direction.

In the vicinity of the fuel tank, for example, it is not possible to say that there is no possibility of oil droplets adhering at the time of refueling. Therefore, an operator's access area (or an area where the operator frequently enters) is also used to eliminate the fear of ignition. Is preferably as far away as possible. In the present invention, by providing the fuel tank at one end (for example, the right side) of the power body in the short direction, the fuel tank can be far away from the driver's seat at the other end (for example, the left side) of the power body. You can be more thorough in terms of gender.

(6) In the above (1) or (3), preferably, the driver's seat, the control valve device, and the tank device are moved in the lateral direction in the one side region in the longitudinal direction of the power body. At the same time, the hydraulic pump, the engine, and the heat exchanger device are juxtaposed in the lateral direction in the other region in the longitudinal direction.

(7) In the above (1) or (3), preferably, the power unit is provided with the hydraulic pump, the engine, the heat exchanger device, the control valve device, the tank device, and the like. The power body frame is provided on the other side in the longitudinal direction of the main body frame.

A hydraulic pump, an engine, a heat exchanger device, a control valve device, a tank device and the like are mounted and arranged on a power body frame forming a basic lower structure of the power body. It suffices that after the devices are mounted and arranged on the power body frame, the combined body is mounted collectively on the other longitudinal side of the main body frame. Therefore, as compared with a case where each of these devices is mounted on the frame one by one, the work of the worker at high places during the assembly is reduced, and the assembling workability is improved.

(8) In order to achieve the above object, the present invention also provides a crusher in which a crushed object put into a hopper provided on one longitudinal side of a main body frame is introduced into a crushing device, and the crushed material is crushed. In a self-propelled crusher that carries out the conveyor to the other side in the longitudinal direction of the main body frame, a power body equipped with an engine is located on the other side in the longitudinal direction of the main body frame so as to be located on the crushing apparatus side. And disposing the conveyor such that an intermediate portion thereof approaches a lower portion of an outer edge of the power body.

In the present invention, when the power body is disposed on the other side (rear side) in the longitudinal direction of the main body frame, the power body is positioned on the side of the crushing device by, for example, reducing the longitudinal dimension of the power body. In addition, the conveyor intermediate portion is arranged so as to approach the lower portion of the outer edge of the power body, and the conveyor disposed below the power body has a relatively large inclination angle in the carrying-out direction. As a result, similar to the above (1) and (3), continuous processing and smoothness of the entire crushing operation can be ensured without lowering mobility and transportability, thereby improving work efficiency. Can be.

(9) In order to achieve the above object, the present invention provides a crusher in which a crushed object put in a hopper provided on one longitudinal side of a main body frame is introduced into a crushing device and crushed. A self-propelled crusher that carries the crusher to the other side in the longitudinal direction of the main body frame by a conveyor, a hydraulic pump serving as a hydraulic source for a hydraulic actuator for driving the crushing device and the conveyor, and an engine for driving the hydraulic pump. A heat exchanger device including a radiator of the engine, a control valve device for controlling a flow of pressurized oil from the hydraulic pump to the hydraulic actuator, a hydraulic oil tank for storing the pressurized oil, and a fuel for the engine. A power body having a tank and a driver's seat provided with operating means for operating the control valve device is connected to the body frame via a power body frame forming a basic lower structure thereof. Place the other longitudinal side of the arm,
The hydraulic pump, the engine, and the heat exchanger device are arranged side by side in the body frame short direction in the region on the other side in the longitudinal direction of the power body, and in the region on the one side in the longitudinal direction of the power body. The fuel tank, the hydraulic oil tank, the control valve device, and the driver's seat are arranged in this order from one side in the short direction of the power body to the other side, and the hydraulic oil tank and the The position of the edge on the one side in the longitudinal direction of the fuel tank is on the other side in the longitudinal direction than the position of the edge on the one side in the longitudinal direction of the control valve device.

[0030]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the self-propelled crusher of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing the entire structure of the self-propelled crusher of the present embodiment,
FIG. 2 is a top view of the self-propelled crusher shown in FIG.

In FIG. 1 and FIG. 2, this self-propelled crusher uses a work implement such as a bucket of a hydraulic shovel, for example, to crush objects (for example, concrete blocks carried out when dismantling buildings or asphalt discharged during road repair). Various types of large and small construction waste materials and industrial waste generated at construction sites such as lump, rocks and natural stones mined at rock mining sites and face, etc. A hopper 1 for receiving construction waste, etc., a crushing device for crushing rock and construction waste received in the hopper 1 into a predetermined size and discharging the crushed waste downward, such as a jaw crusher 2 and a rock and construction waste received in the hopper 1 Crusher body 4 equipped with a feeder 3 carrying and guiding the crusher to the jaw crusher 2, a traveling body 5 provided below the crusher body 4, Lash 2 is crushed by discharged crushed was accepted crusher rear downward (the other longitudinal side of the later-described track frame crusher attachment portion 8A,
A conveyor 6 which is carried and carried out to the right side in FIG. 1 and a magnetic separator 7 which is provided above the conveyor 6 and magnetically attracts and removes magnetic substances (rebars and the like) contained in the crushed material being carried on the conveyor 6. And

The traveling body 5 includes a track frame 8
And left and right crawler tracks 9 as running means. The track frame 8 is formed of, for example, a substantially rectangular frame, and has a crusher mounting portion 8 on which the crusher 2, the hopper 1, and a power unit 34 described later are mounted.
A and a leg 8B for connecting the crusher mounting portion 8A and the left and right crawler track 9 described above. Further, the crawler track 9 is stretched between a drive wheel 10 and an idler 11 rotatably supported by the leg 8B,
Left and right traveling hydraulic motors 12 provided on the drive wheel 10 side
The crusher is made to run by the driving force given by L and 12R.

The hopper 1, together with the feeder 3, is located above one end of the track frame crusher mounting portion 8A in the longitudinal direction (left-right direction in FIG. 1) (front side of the crusher, ie, left side in FIG. 1). It is installed in.

The jaw crusher 2 is located on the rear side (right side in FIG. 1) of the crusher with respect to the hopper 1 and the feeder 3, and as shown in FIG. It is mounted on the middle part in the longitudinal direction. At this time, the driving force generated by the crushing hydraulic motor 13 (see FIG. 2) is transmitted to the flywheel 14 via a belt (not shown).
Is converted into a swinging motion of a moving tooth (not shown) by a well-known conversion mechanism, and the moving tooth is swung back and forth with respect to a fixed tooth (not shown). The rock, construction waste, and the like supplied from the feeder 3 are crushed to a predetermined size.

The feeder 3 is, as shown in FIG.
Feeder frame 15 provided near one end (left side in FIG. 1) of the track frame crusher mounting portion 8A in the longitudinal direction.
And the hopper 1 is located almost directly above the hopper. The feeder 3 is a so-called grizzly feeder. The driving force generated by the feeder hydraulic motor 16 causes the rock /
A bottom plate portion including a plurality (two in this example) of sawtooth plates 3a (see FIG. 2) on which construction waste materials and the like are placed is vibrated.
With such a structure, rocks, construction waste materials, and the like put into the hopper 1 are sequentially conveyed and supplied to the jaw crusher 2 (=
Along with the transport function), fine particles, fine earth and sand, etc., contained in rocks, construction waste materials and the like are dropped downward from the gaps between the saw teeth of the saw-tooth plate 3a via the chute 17 (see FIG. 1) during the transfer so as to fall on the conveyor 6. To be introduced. In other words, a screening function of selecting rocks, construction waste materials, and the like having a particle size larger than the size of the gap by sifting rocks, construction waste materials, and the like having a smaller particle size than the size of the gap between the saw teeth of the serrated plate 3a is also provided. Equipped.
The conveyor 6 includes a conveyor hydraulic motor 20 (FIG. 2).
) To drive the crushed material dropped from the jaw crusher 2 onto the belt 6a and the fine-grained falling material (uncrushed) via the chute 17.

The conveyor 6 has a support member 18 on the transport side (in other words, the rear side of the crusher, the right side in FIG. 1).
It is suspended and supported by an arm member 19 attached to a power unit 34 (details will be described later) via a and 18b.
The portion on the non-transport side (the front side of the crusher, the left side in FIG. 1) is located below the track frame crusher mounting portion 8A, and is connected to the track frame crusher mounting portion via a support member (not shown). It is supported so as to be suspended from 8A. As a result, as shown in FIG. 1, the conveyor 6 is arranged so as to rise obliquely in the carry-out direction (rightward in FIG. 1) in the space below the outer edge (rear end) 34a of the power unit 34. Then, the support member 18a
Is connected so that the position where the conveyor 6 comes closest to the power unit 34, that is, the intermediate portion 6b in the conveyance direction of the conveyor 6 and the outer edge portion (rear end portion) 34a of the power unit 34 is almost the shortest distance.

The magnetic separator 7 is suspended from and supported by the arm member 19 via a support member 21, and is disposed above the conveyor belt 6a so as to be substantially orthogonal to the conveyor belt 6a. The belt 7a is driven around a magnetic force generating means (not shown) by a magnetic separator hydraulic motor 22 so that the magnetic force from the magnetic force generating means acts through the magnetic separator belt 7a, and a magnetic substance is applied to the magnetic separator belt 7a. After being sucked, it is transported in a direction substantially perpendicular to the conveyor belt 6a and dropped to the side of the conveyor belt 6a.

Here, the crushing device 2, feeder 3, running body 5, conveyor 6, and magnetic separator 7 constitute a driven member driven by a hydraulic drive device provided in the self-propelled crusher. I have. FIG. 3 is a hydraulic circuit diagram showing a schematic configuration of the hydraulic drive device.

In FIG. 3, this hydraulic drive device is provided in the self-propelled crusher, and includes an engine 23 as a prime mover, a first hydraulic pump 24 and a second hydraulic Pump 25 and the first
And six hydraulic actuators to which the hydraulic oil discharged from the second hydraulic pumps 24 and 25 are respectively supplied, that is, the above-described left and right traveling hydraulic motors 12L and 12R, the crushing hydraulic motor 13, the feeder hydraulic motor 16, Conveyor hydraulic motor 20, magnetic separator hydraulic motor 22, and direction and flow rate of hydraulic oil supplied from first and second hydraulic pumps 24, 25 to hydraulic motors 12L, 12R, 13, 16, 20, 22 , And six control valves 26, 27, 28, 29, 30, 31.

The control valves 26 to 31 are connected to the crushing control valve 26 connected to the crushing hydraulic motor 13, the left running control valve 27 connected to the left running hydraulic motor 12L, and the right running hydraulic motor 12R. Connected to the control valve 28 for the right running, the control valve 29 for the feeder connected to the hydraulic motor 16 for the feeder, the control valve 30 for the conveyor connected to the hydraulic motor 20 for the conveyor, and the hydraulic motor 22 for the magnetic separator. Control valve 3 for magnetic separator
And control valves 26, 27, 2
8 is a three-position switching valve, control valves 29, 30, 3
Reference numeral 1 denotes a two-position switching valve.

The hydraulic oil discharged from the first hydraulic pump 24 is supplied to the crushing hydraulic motor 13 and the left traveling hydraulic motor 12L according to the switching stroke of the crushing control valve 26 and the left traveling control valve 27. It is supposed to be. Also, the second hydraulic pump 25
Is discharged from the right control valve 2
8, the right traveling hydraulic motor 12R, the feeder hydraulic motor 16, the conveyor hydraulic motor 20, and the magnetic separator, according to the switching stroke of the feeder control valve 29, the conveyor control valve 30, and the magnetic separator control valve 31. This is supplied to the machine hydraulic motor 22.

The control valves 26 to 31
Of which, the left and right traveling control valves 27, 28
Is a hydraulic pilot type switching valve provided with a hydraulic drive unit, which switches according to a pilot pressure according to the operation amount of operation levers 45L and 45R (same) provided in a driver's seat 42 (see FIG. 4 described later). It is supposed to be.

On the other hand, a control valve 26 for crushing, a control valve 29 for a feeder, a control valve 30 for a conveyor, and a control valve 31 for a magnetic separator.
Numeral denotes an electromagnetic switching valve provided with a solenoid drive unit, which receives an operation signal from an operation panel 47 provided at an appropriate portion (for example, a driver's seat 42 described later) of the self-propelled crusher shown in FIGS. The control drive signal Sc from the controller 32 based on
Switching is performed according to r, Sf, Scom, and Sm. Here, the feeder control valve 29,
The control valve 30 for the conveyor and the control valve 31 for the magnetic separator are pressure control valves 51, 5 described later.
4, 57 and the relief valve 77 perform pressure compensation control to make the pressure difference between the front and rear constant, whereby the control valves 29, 30, and irrespective of changes in the load pressure of the hydraulic motors 16, 20, and 22. The pressure oil at a flow rate corresponding to the opening degree of the pressure valve 31 can be supplied to the corresponding hydraulic motor. Hereinafter, the details will be described.

The feeder control valve 29 is switched to the upper switching position 29A in FIG. 3 when the drive signal Sf to the solenoid drive unit 29a becomes an ON signal for operating the feeder 3. Thus, the pressure oil from the second hydraulic pump 25 guided through the center line 79 is provided from the throttle means 29Aa provided at the switching position 29A to the pipeline 50 connected thereto, and to the pipeline 50. The feeder hydraulic motor 16 passes through a pressure control valve 51 (details will be described later), a port 29Ab provided at the switching position 29A, and a supply line 52 connected to the port 29Ab.
And the hydraulic motor 16 is driven. When the drive signal Sf becomes an OFF signal corresponding to the stop of the feeder 3, the feeder control valve 29 returns to the shut-off position shown in FIG. 3 by the urging force of the spring 29b, and the feeder hydraulic motor 16 stops.

When the drive signal Scom to the solenoid drive section 30a of the conveyor control valve 30 becomes an ON signal for operating the conveyor 6 as in the case of the feeder control valve 29, the upper communication position 30 in FIG.
A, and the pressure oil from the center line 79 is
It is supplied from the throttle means 30Aa at the switching position 30A to the hydraulic motor 20 for the conveyor via the pipe 53, the pressure control valve 54 (details will be described later), the port 30Ab at the switching position 30A, and the supply pipe 55 connected to the port 30Ab. It is driven. When the drive signal Scom becomes an OFF signal corresponding to the stop of the conveyor 6, the conveyor control valve 3
Reference numeral 0 denotes the urging force of the spring 30b, which returns to the shut-off position shown in FIG. 3, and the conveyor hydraulic motor 20 stops.

The control valve 31 for the magnetic separator, like the control valve 29 for the feeder and the control valve 30 for the conveyor, has a solenoid driving section 31a.
When the drive signal Sm is turned ON, the communication position is switched to the upper communication position 31A in FIG.
→ line 56 → pressure control valve 57 (details will be described later) → port 3
1Ab → supplied to the magnetic motor 22 for the magnetic separator via the supply line 58 to be driven. When the drive signal Sm becomes the OFF signal, the control valve 31 for the magnetic separator returns to the shut-off position by the urging force of the spring 31b.

Here, the functions related to the pressure control valves 51, 54, 57 provided in the pipes 50, 53, 56 will be described.

The port 29Ab at the switching position 29A of the control valve 29 for the feeder and the port 30A at the switching position 30A of the control valve 30 for the conveyor.
b, and the switching position 3 of the control valve 31 for the magnetic separator
The 1A port 31Ab includes a load detection port 29Ac, a load detection port 30Ac for detecting the load pressure of the corresponding feeder hydraulic motor 16, conveyor hydraulic motor 20, and magnetic separator hydraulic motor 22, respectively.
The load detection port 31Ac is in communication. At this time,
The load detection port 29Ac is connected to the load detection line 65, the load detection port 30Ac is connected to the load detection line 66, and the load detection port 31Ac is connected to the load detection line 6
7 is connected.

Here, the load detection line 65 to which the load pressure of the feeder hydraulic motor 16 is led and the load detection line 6 to which the load pressure of the conveyor hydraulic motor 20 is led.
6 further includes a load detection line 6 via a shuttle valve 68.
9, and the load pressure on the high pressure side selected via the shuttle valve 68 is guided to the load detection line 69. The load detection line 69 and the load detection line 6 through which the load pressure of the hydraulic motor 22 for the magnetic separator is guided.
7 is the maximum load detection line 71 via the shuttle valve 70.
The load pressure on the high pressure side selected by the shuttle valve 70 is guided to the maximum load detection pipe 71 as the maximum load pressure.

The maximum load pressure guided to the maximum load detection pipe 71 is supplied to the corresponding pressure control valve 51 via pipes 72, 73, 74 and 75 connected to the maximum load detection pipe 71. , 54, 57, respectively. At this time, the pressure in the pipes 50, 53, 56, that is, the downstream pressure of the throttle means 29Aa, 30Aa, 31Aa is guided to the other side of the pressure control valves 51, 54, 57.

As described above, the pressure control valves 51, 54, 57
Is the throttle means 2 of the control valves 29, 30, 31
Each hydraulic motor operates in response to a differential pressure between the downstream pressure of 9Aa, 30Aa, and 31Aa and the maximum load pressure of the feeder hydraulic motor 16, the conveyor hydraulic motor 20, and the magnetic separator hydraulic motor 22. The differential pressure is maintained at a constant value irrespective of changes in the load pressures 16, 20, and 22. That is, the throttle means 29Aa, 3
The downstream pressures of 0Aa and 31Aa are set higher than the maximum load pressure by the set pressures of the springs 51a, 54a and 57a.

On the other hand, a relief valve (unload valve) 77 having a spring 77a is provided in a bleed-off pipe 76 branched from a center line 79 connected to a discharge pipe of the second hydraulic pump 20. On one side of the relief valve 77, a maximum load pressure is guided through a maximum load detection pipe 71 and a pipe 78 connected thereto, and the other side of the relief valve 77 is bleed off through a port 77b. The pressure in line 76 is led. Thus, the relief valve 77 increases the pressure in the pipeline 76 and the center line 79 by the set pressure of the spring 77a from the maximum load pressure. That is, the pressure in the pipe 76 and the center line 79 is changed by the spring 77 to the pressure in the pipe 78 where the maximum load pressure is led.
When the pressure of the spring force of “a” becomes the added pressure, the pipeline 7
The pressure oil of No. 6 is guided to a tank (hydraulic oil tank) 44, whereby the flow rate from the control valve 29 for the feeder, the control valve 30 for the conveyor, and the control valve 31 for the magnetic separator is controlled to be constant.

The pressure control valves 51, 54, 5 described above
7, control between the downstream pressure of the throttle means 29Aa, 30Aa, 31Aa and the maximum load pressure, and the relief valve 7
7, the control between the pressure in the bleed-off line 76 and the maximum load pressure allows the throttling means 29Aa, 30Aa, 3
The pressure compensating function for keeping the differential pressure of 1 Aa constant is performed. Thereby, each of the hydraulic motors 16, 20, 22
Control valve 2 regardless of load pressure change
The pressure oil corresponding to the opening degree of 9, 30, 31 can be supplied to the corresponding hydraulic motor.

That is, normally, during the crushing operation, the load pressure of the magnetic motor 22 for the magnetic separator is relatively small, while the load pressure of the hydraulic motor 16 for the feeder and the hydraulic motor 20 for the conveyor are large. Therefore, those hydraulic motors 1
Control valves 29,3 related to 6,20,22
If 0 and 31 are simply connected in parallel, there is a possibility that the pressure oil concentrates on the hydraulic motor 22 for the magnetic separator with the smallest load and the pressure oil is not supplied much to the other hydraulic motors 16 and 20. By performing the pressure compensation as described above, the three hydraulic motors 16, 20, and 22 are reliably supplied with hydraulic oil at a flow rate corresponding to the degree of opening of the control valves 29, 30, and 31 to the corresponding hydraulic motors. And can be driven.

The engine 23 described above and the first
Each of the second hydraulic pumps 24 and 25 and the control valve device 41 (see FIG. 4 described later) including the control valves 26 to 31 is the other end in the longitudinal direction of the track frame crusher mounting portion 8A. It is provided in a power unit 34 mounted on the upper part of the unit via a power unit loading member 33 (see FIG. 1). This power unit 34
As shown in FIG. 1, is located further rearward of the crusher than the jaw crusher 2 (right side in FIG. 1).

The main part of the present embodiment lies in the structure of the power unit 34. Hereinafter, the detailed structure of the power unit 34 will be described with reference to FIG.

FIG. 4 is a top view showing the detailed structure of the power unit, and also shows the internal structure of the power unit by removing the cover for covering the upper part. The upper side corresponds to the front side of the crusher (the left side in FIG. 1), and the lower side corresponds to the rear side (the right side in FIG. 1).

In FIG. 4, the first and second power units 34 are located on the rear side (lower side in FIG. 4) of the crusher.
Hydraulic pumps 24 and 25, the engine 23, and a heat exchanger device 35 having a radiator 35a for cooling the cooling water of the engine 23 are arranged in the width direction of the crusher (vertical direction in FIG. 2, left and right in FIG. 4). Direction, short direction of the track frame 8).

In such a rear area device configuration,
When the engine 23 is started, the first and second hydraulic pumps 2
4, 25 are driven. On the other hand, a fan (not shown) provided on the left side of the engine 23 in FIG. 4 is rotated by the driving force of the engine 23, and air outside the power unit 34 is introduced into the internal space of the power unit 34 from the intake hole 36 (see FIG. 2). The cooling air becomes
After cooling, it flows into the fan. Further, the cooling air blown out from the fan cools the engine 23, the muffler (not shown), the first and second hydraulic pumps 24 and 25, etc., and then is discharged to the atmosphere from the exhaust holes 37 (see FIG. 2). You. Further, at this time, the exhaust gas from the engine 23 flows into the muffler from an exhaust manifold (not shown) of the engine 23 and is muffled, and then flows through an exhaust gas pipe 38 (see FIG. 2) connected to the muffler. Released during. Further, on the left side of the heat exchanger device 35 in FIG.
Is provided.

On the other hand, in a region of the power unit 34 in front of the crusher (upper side in FIG. 4), a tank device 40, a control valve device 41, and a driver's seat 42 are arranged in this order on the right side in the crusher width direction (upper side in FIG. 2). 4, right side in FIG. 4, one side in the short direction of the track frame 8), and left side (lower side in FIG. 2, left side in FIG. 4, the other side in the short direction of the track frame 8). The tank device 40 includes a fuel tank 43 of the engine 23 having a fuel supply port 43a,
4a, and the hydraulic oil tank 44 for storing hydraulic oil in the hydraulic drive device shown in FIG.
Are arranged side by side in this order from the right side in the crusher width direction (right side in FIG. 4) to the left side (left side in FIG. 4). That is, the fuel tank 43 is disposed at the right end (right side in FIG. 4) of the crusher in the width direction.

The control valve device 41 is provided on the rear side (lower side in FIG. 4) of the crusher.
Main control valve unit 4 with 6 to 31
1a. As shown in FIG. 4, the main control valves are arranged such that their spools are arranged in a line in the width direction of the crusher (the left-right direction in FIG. 4) while the vertical direction of the spool is vertical. Although illustration and detailed description are omitted in FIG. 3 on the front side (upper side in FIG. 4) of the crusher of the control valve device 41, other control valves (for example, load A sub-control valve unit 41b including various hydraulic control valves related to sensing is provided.

At this time, the position of the edge 41A on the front side (upper side in FIG. 4) of the crusher of the control valve device 41 is set at the edge (upper side in FIG. 4) of the tank apparatus 40. In this case, the hydraulic oil tank 44 and the fuel tank 43
Than the positions of the edges 44A, 43A) on the front side of the crusher.
The crusher is on the front side.

The driver's seat 42 is a section where the operator gets on the vehicle, and when the operator stands in the driver's seat 42,
During the crushing operation, it is possible to monitor to some extent the state of supply of rocks and construction waste materials by the feeder 3 and the state of crushing by the jaw crusher 2. The driver's seat 42 includes the control valve 2 for left and right running.
Operating means for controlling the driving speeds of the left and right traveling hydraulic motors 12L and 12R by switching between the switches 7 and 28, for example, left and right operating levers 45L and 45R are provided. Also, the rear side of the crusher in the driver's seat 42 (the lower side in FIG. 4).
Is provided with a control panel 46 incorporating the controller 32 (see FIG. 3).

The components of the power unit 34 described above are arranged on a power unit frame 34b (see FIG. 1) which forms a basic lower structure of the power unit 34. The power unit frame 34b is mounted on the power unit loading member 33 (see FIG. 1). 1), and is mounted on an upper portion of the other end in the longitudinal direction of the track frame crusher mounting portion 8A.

In the above description, the track frame 8 constitutes the main body frame described in the claims, and the longitudinal direction of the track frame crusher attaching portion 8A corresponds to the longitudinal direction of the frame. One side in the longitudinal direction (the left side in FIGS. 1 and 2) corresponds to one side in the longitudinal direction of the frame, and the other side in the longitudinal direction (the right side in FIGS. 1 and 2) of the track frame crusher mounting portion 8A corresponds to the longitudinal direction of the frame. It corresponds to the other side.

The power unit 34 constitutes a power body, and the power unit frame 34b constitutes a power body frame.

Next, the operation of this embodiment will be described below.

For example, when rocks and construction wastes are put into the hopper 1 by a bucket of a hydraulic shovel or the like, the rocks and construction wastes received by the hopper 1 are smaller by the feeder 3 than the gap between the saw teeth of the sawtooth plate 3a. The material is conveyed to the jaw crusher 2 while being removed. The rock, construction waste, and the like conveyed to the jaw crusher 2 are crushed by the jaw crusher 2, and the crushed material falls from the space below the jaw crusher 2 onto the conveyor 6 below the jaw crusher 2, and is conveyed by the conveyor 6. You. During this transportation, the magnetic separator 7 disposed above the conveyor 6 adsorbs and removes, for example, rebar pieces mixed in the concrete lump, and is finally adjusted to some extent in size, and is discharged from the rear of the crusher. Is done.

According to the self-propelled crusher of this embodiment having the above configuration and operation, the following effects can be obtained.

(1) Improving Efficiency in Whole Crushing Operation (1-A) Reduction Action of Power Unit Front-Back Dimension (Part 1) First, in the present embodiment, the driver's seat 42 When arranging the control valve device 41 and the tank device 40, the three are arranged side by side in the crusher width direction (lateral direction), and the driver's seat 42, the control valve device 41, and the tank device 40 are arranged side by side. Accordingly, first, the arrangement of the driver's seat 42 and the control valve device 41 is more necessary than the structure in which the control valve device and the substantial driver's seat space are juxtaposed in the front-rear direction as in JP-A-10-15423. The size of the crusher in the front-rear direction can be reduced.
At this time, the front edge 4 of the crusher of the tank device 40
By setting the positions of 3A and 44A behind the position of the front side edge portion 41A of the control valve device, the tank device 40 can be removed from the reduced range of the driver's seat 42 and the control valve device 41 in the front-rear direction. The installation space can be prevented from protruding to the front side. As described above, in the power unit 34, it is possible to reduce the size in the front-rear direction of the area where the driver's seat 42, the control valve device 41, and the tank device 40 are arranged. Can be achieved.

In this case, even if the positions of the front side edges 43A and 44A of the crusher of the tank device 40 are the same as the position of the front side edge 41A of the control valve device, at least the reduced driver's seat 42 and control valve Since the installation space of the tank device 40 does not protrude from the range within the front-rear dimension for the arrangement of the device 41, the same operation can be obtained.

(1-B) Function of Reducing the Size of Power Unit in the Front-Back direction (No. 2) In the present embodiment, when the tank device 40 is arranged in the front area of the crusher of the power unit 34, the hydraulic oil tank 44 and The fuel tanks 43 are arranged side by side in the crusher width direction (left-right direction), and at least the control valve device 41, the hydraulic oil tank 44, and the fuel tank 43 are arranged side by side. Thereby, the dimension in the front-rear direction required for disposing the tank device 40 can be reduced as compared with the structure in which two tanks are arranged in the front-rear direction in the tank device as disclosed in JP-A-10-15423. Therefore, it is possible to reduce the front-rear dimension of at least the region where the control valve device 41 and the tank device 40 are arranged in the power unit 34, thereby also reducing the front-rear dimension of the power unit 34 in the crusher. .

(1-C) The above (1-A) and (1-B)
According to the above (1-A) and (1-B), the power unit 34 has a substantially rectangular parallelepiped shape as shown in FIGS. 1 and 2, and the size in the front-rear direction of the crusher is significantly reduced. Thereby, as described above, the carry-out direction inclination angle of the conveyor 6 disposed below the power unit 34 is set relatively large (in other words, the power unit 34 is disposed on the jaw crusher 2 side (= the front side of the crusher) and The intermediate conveyor section 6b can be closer to the outer edge 34a of the power unit so arranged). Therefore, as in the case of applying Japanese Patent Application Laid-Open No. H10-15423, the unloading side of the conveyor 6 (without extending the entire length of the conveyor in the transport direction (rearward) or increasing the arrangement height of the power unit). The height of the rear side (end) from the ground can be sufficiently secured, and there is no need to provide a stationary secondary conveyor.
That is, the continuous processing and smoothness of the entire crushing operation can be ensured without lowering the mobility and transportability, thereby improving the operation efficiency.

(2) Improvement of Safety In general, it cannot be said that there is no possibility that oil droplets will adhere to the vicinity of the fuel tank, for example, when fuel is supplied. It is preferable to be as far as possible from the area (or the area where entry is frequent). In the present embodiment, by providing the fuel tank 43 at the right end in the width direction of the crusher of the power unit 34, the fuel tank 43 can be far away from the driver's seat 42 at the left end, so that safety is ensured. Can be.

(3) Improvement of assembly workability Conventionally, when assembling a self-propelled crusher, equipment such as a hydraulic pump, an engine, a heat exchanger device, a control valve device, a tank device and the like are used in a state where a traveling body is already completed. Are often mounted one by one on the rear end of the crusher of the track frame (main body frame). However, in this case, each time the assembling worker attaches each device, it is necessary to climb on a track frame having a certain height from the crusher installation surface (floor surface) to perform so-called high-place work.

On the other hand, in the present embodiment, the first and second hydraulic pumps 24 and 25, the engine 23, the heat exchanger device 35, the control valve device, 41, the tank device 40, and the like are mounted and arranged. At the time of assembling, after the devices are first mounted and arranged on the power unit frame 34b, the combined body is lifted by, for example, a crane or the like, and the truck frame crusher is mounted. It suffices to mount them all together on the rear end of the crusher of the mounting portion 8A. Therefore, as compared with the above-mentioned conventional work, the work of the worker at a high place at the time of assembling is reduced, and the assembling workability can be improved.

In the embodiment of the present invention, the control valve device 41 has both the main control valve unit 41a and the sub-control valve unit 41b. The present invention is not limited to this, depending on the mode of the hydraulic drive device.
That is, when the hydraulic drive device has a relatively simple structure and there is no need to provide a sub-control valve unit, as shown in FIG. 5, the control valve device 41 may include only the main control valve unit 41a. Good. Also in this case, the driver's seat 42, the control valve device 41, and the tank device 40 are arranged side by side, and the positions of the crusher front side edges 43A and 44A of the tank device 40 are set to be smaller than the positions of the control valve device front side edges 41A. As long as the hydraulic oil tank 44 and the fuel tank 43 are arranged side by side in the tank device 40, the above-mentioned (1-A) can be obtained.
Since the effect of B) can be obtained, the same effect as the above-described embodiment of the present invention can be obtained.

In the embodiment of the present invention, in the tank device 40, the fuel tank 43 is arranged on the right side in the crusher width direction and the hydraulic oil tank 44 is arranged on the left side, so that the fuel tank 43 is Although provided at the right end in the width direction of the crusher, the arrangement is not limited to such an arrangement as long as the effect (1), which is the most basic effect of the present invention, is obtained. The crusher may be arranged on the left side in the width direction, and the hydraulic oil tank 44 may be arranged on the right side. Further, in the embodiment of the present invention, the first and second power unit frames 34b are provided on the power unit frame 34b.
Hydraulic pumps 24, 25, engine 23, heat exchanger device 3
5, the control valve device 41, the tank device 40, and the like are mounted and arranged. However, as long as the above-described effect (1), which is the most basic effect of the present invention, is obtained, the structure is limited to such an arrangement structure. However, as in the prior art, the first and second hydraulic pumps 24 and 25, the engine 23, the heat exchanger device 35, the control valve device 41, the tank device 40, etc. The power unit 34 may be configured by mounting the devices one by one on the rear end of the crusher of the truck frame crusher mounting portion 8A. In the above description, the driver's seat 42, the control valve device 41, and the tank device 40 are arranged side by side and the tank device 4
By setting the positions of the front side edges 43A and 44A of the crusher 0 behind the position of the control valve device front side edge 41A, the effect of (1-A) is obtained. By arranging the hydraulic oil tank 44 and the fuel tank 43 side by side, the effect of the above (1-B) is obtained, and the effect of improving the crushing operation efficiency of the above (1-C) is obtained by both of them, but it is not limited to this. , Or one of them. That is, for example, as shown in FIG. 6, the tank device 40 does not arrange the hydraulic oil tank 44 and the fuel tank 43 in a side-by-side arrangement but in a vertical arrangement (the tanks 43 and 44 are elongated in the width direction of the crusher). The driver's seat 42, the control valve device 41, and the tank device 40 are arranged side by side, and the position of the crusher front side edge of the tank device 40 (in this case, the crusher front side edge 43A of the fuel tank 43) is controlled. Valve device front side edge 4
It is on the rear side of the position of 1A.

Also in this case, at least,
Compared with the structure in which the control valve device and the substantial driver's seat space are juxtaposed in the front-rear direction as in No. 5423, the crusher front-rear dimension required for disposing the driver's seat 42 and the control valve device 41 is reduced. The installation space of the tank device 40 can be prevented from protruding forward from the reduced range of the driver's seat 42 and the control valve device 41 in the longitudinal direction. Therefore, in the power unit 34, it is possible to reduce the size in the front-rear direction of the region where the driver's seat 42, the control valve device 41, and the tank device 40 are arranged, so that the size of the power unit 34 in the front-rear direction can be reduced accordingly. I can do it. As a result, at least Japanese Patent Application Laid-Open
Compared with No. 15423, the size of the power unit 34 in the front-rear direction of the crusher is reduced, and the carry-out direction inclination angle of the conveyor 6 can be increased. Therefore, the continuous processing and smoothness of the entire crushing operation can be ensured without lowering the mobility and transportability, thereby improving the operation efficiency.

Conversely, the control valve device 41, the hydraulic oil tank 44, and the fuel tank 43 are arranged side by side, and the crushing machine front side edge of the tank device 40 (the crushing machine front side edge 43A of the fuel tank 43 and the crushing machine The position of the crusher front side edge 44A) of the oil tank 44 is slightly changed to the control valve device front side edge 4
Even if it is on the front side from the position of 1A, at least the crusher before and after necessary for the arrangement of the tank device is smaller than the structure in which two tanks are arranged in the longitudinal direction of the crusher as in JP-A-10-15423. The dimension in the direction can be reduced.
Therefore, in the power unit 34, the driver's seat 42,
Since the dimension in the front-rear direction of the region where the control valve device 41 and the tank device 40 are arranged can be reduced,
The size of the power unit 34 in the front-rear direction can be reduced. As a result, as described above, at least,
Compared with No. 23, the size of the power unit 34 in the longitudinal direction of the crusher is reduced, and the inclination angle of the conveyor 6 in the unloading direction can be increased, so that the continuous processing performance of the entire crushing operation without lowering the mobility and transportability and Smoothness can be ensured, thereby improving work efficiency. Furthermore, in the above, the self-propelled crusher provided with the jaw crusher 2 that crushes the moving teeth and the fixed teeth as the crushing device has been described as an example. However, the crushing device is not limited thereto, and other crushing devices, for example, rolls A rotary crusher (a so-called roll) that crushes a rock or construction waste material between these rotators by rotating the pair in the opposite direction to each other with a pair of rotators having a crushing blade attached to the rotator. A six-shaft crusher including a crusher), a crusher equipped with a cutter on a shaft arranged in parallel and shearing rocks and construction waste materials by rotating in opposite directions to each other (a two-shaft shearing machine including a so-called shredder), A crushing device (a so-called impeller) for rotating a striking plate provided with a plurality of blades at a high speed, and crushing rocks, construction waste materials, etc. by using the impact from the striking plate and the collision with the repelling plate. Preparative crusher) or wood, branches timber, is applicable to crusher to strip by placing the rotor with a cutter wood such as construction waste wood. In these cases, the feeder 3 may be omitted as appropriate. In these cases, a similar effect is obtained.

Further, in the above, the feeder 3 is provided with a grizzly feeder that vibrates a bottom plate portion including a plurality of saw-tooth plates 3a on which objects to be crushed are placed by using the driving force of a hydraulic motor. Although the description has been made by taking the traveling crusher as an example, the invention is not limited to this. That is, another type of feeder, for example, a crushed object input from a hopper is placed on a substantially flat bottom plate provided below the hopper, and the bottom plate is driven by a base driving mechanism based on a driving force generated by a hydraulic motor. Equipped with a so-called plate feeder that reciprocates in a substantially horizontal direction to sequentially extrude the preceding crushed object on the bottom plate by inputting the subsequent crushed object and sequentially supply the crushed object to the crushing device from the front end of the bottom plate. It is also applicable to shredders.

As can be understood from the above description, the basic technical idea of the present invention is to reduce the size of the power unit 34 in the front-rear direction of the crusher so that the position of the outer edge 34a of the power unit is closer to the front side of the crusher, To increase the height of the carry-out side end by increasing the angle of inclination in the carry-out direction, thereby enabling a large amount of crushed material to be retained and ensuring continuous processing and smoothness of the entire crushing operation. To make it possible.

[0083]

According to the present invention, it is possible to reduce the size of the power body in the front-rear direction where the driver's seat, the control valve device, and the tank device are arranged, thereby reducing the size of the power body in the front-rear direction. Conveyor side (rear side)
The height of the end from the ground can be sufficiently secured. Therefore, continuous processing and smoothness of the entire crushing operation can be ensured without lowering mobility and transportability,
Thereby, work efficiency can be improved.

[Brief description of the drawings]

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

FIG. 2 is a top view of the self-propelled crusher shown in FIG.

FIG. 3 is a hydraulic circuit diagram showing a schematic configuration of a hydraulic drive device of the self-propelled crusher shown in FIG.

FIG. 4 is a top view illustrating a detailed structure of the power unit illustrated in FIG.

FIG. 5 is a view showing a modification in which a control valve device having a different structure is provided.

FIG. 6 is a view showing a modification in which a tank device having a different structure is provided.

[Explanation of symbols]

Reference Signs List 1 Hopper 2 Jaw crusher (crushing device) 6 Conveyor 6b Conveyor intermediate section 8 Track frame (body frame) 13 Crushing hydraulic motor (hydraulic actuator) 20 Conveyor hydraulic motor (hydraulic actuator) 23 Engine 24 First hydraulic pump 25 Second Hydraulic pump 34 Power unit (power body) 34a Power unit outer edge 34b Power unit frame (power body frame) 35 Heat exchanger device 35a Radiator 40 Tank device 41 Control valve device 41A Edge of control valve device 42 Driver's seat 43 Fuel tank 43A Fuel tank Edge of hydraulic oil tank 44A Edge of hydraulic oil tank 45L, R Operation lever (operation means)

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Tadashi Shiohata 650, Kandamachi, Tsuchiura-shi, Ibaraki Pref.Hitachi Construction Machinery Co., Ltd. F-term in Tsuchiura Plant (reference) 4D067 DD04 DD06 GA02 GA06 GB06 GB05

Claims (9)

[Claims] An object to be crushed introduced into a hopper provided on one side in a longitudinal direction of a main body frame is introduced into a crushing device to be crushed, and the crushed material is conveyed to another side in the longitudinal direction of the main body frame by a conveyor. A self-propelled crusher, a hydraulic pump serving as a hydraulic source to a hydraulic actuator that drives the crushing device and the conveyor, an engine that drives the hydraulic pump, and a heat exchanger device including a radiator of the engine; A control valve device for controlling the flow of pressure oil from the hydraulic pump to the hydraulic actuator, a tank device including a hydraulic oil tank for storing the pressure oil and a fuel tank for the engine, and operating the control valve device A power body having a driver's seat provided with operating means is disposed on the other side in the longitudinal direction of the main body frame; The hydraulic pump, the engine, and the heat exchanger device are arranged side by side in the lateral direction of the main body frame in one region of the other region in the longitudinal direction, and the driver's seat and the control are arranged in the other region. The valve device and the tank device are arranged side by side in the short direction, and the position of the edge on the one side in the longitudinal direction of the tank device,
A self-propelled crusher, wherein the control valve device is located on the other side in the longitudinal direction or at the same position in the longitudinal direction than the edge on the one side in the longitudinal direction. 2. The self-propelled crushing machine according to claim 1, wherein said tank device has said hydraulic oil tank and said fuel tank arranged side by side in said longitudinal direction. Machine. 3. A crushed object put into a hopper provided on one side in the longitudinal direction of the main body frame is introduced into a crushing device and crushed, and the crushed object is carried out to the other side in the longitudinal direction of the main body frame by a conveyor. A self-propelled crusher, a hydraulic pump serving as a hydraulic source to a hydraulic actuator that drives the crushing device and the conveyor, an engine that drives the hydraulic pump, and a heat exchanger device including a radiator of the engine; A power valve having a control valve device for controlling a flow of pressurized oil from the hydraulic pump to the hydraulic actuator, and a tank device including a hydraulic oil tank for storing the pressurized oil and a fuel tank for the engine is provided on the main body frame. Is disposed on the other side in the longitudinal direction of the power body, and in one of the longitudinal direction one side region and the longitudinal direction other side region of the power body, A hydraulic pump, the engine, and the heat exchanger device are arranged side by side in the lateral direction of the main body frame, and the control valve device and the tank device are arranged in the other direction in the lateral direction, and The self-propelled crusher is characterized in that the tank device has the hydraulic oil tank and the fuel tank arranged side by side in the lateral direction. 4. The self-propelled crusher according to claim 3, wherein a driver seat provided with operating means for operating the control valve device is provided at the other end of the power body in the short side direction. A self-propelled crusher characterized by the following. 5. The self-propelled crusher according to claim 4, wherein the fuel tank is provided at one end of the power body in the short direction. . 6. The self-propelled crusher according to claim 1, wherein the driver's seat, the control valve device, and the tank device are arranged in the short side direction in the one longitudinal region of the power body. A self-propelled crusher, wherein the hydraulic pump, the engine, and the heat exchanger device are juxtaposed in the lateral direction in the other region in the longitudinal direction. 7. The self-propelled crusher according to claim 1, wherein the power body is provided with the hydraulic pump, the engine, the heat exchanger device, the control valve device, the tank device, and the like. A self-propelled crusher, comprising: a power body frame provided on the other side of the main body frame in the longitudinal direction. 8. A crushed object put in a hopper provided on one side in the longitudinal direction of the main body frame is introduced into a crushing device to be crushed, and the crushed object is carried out to the other side in the longitudinal direction of the main body frame by a conveyor. In a self-propelled crushing machine, a power body equipped with an engine is arranged on the other side in the longitudinal direction of the main body frame so as to be located on the crushing apparatus side, and the conveyor has an intermediate portion having the power body. A self-propelled crusher, which is arranged so as to approach the lower part of the outer edge of the crusher. 9. A crushed object put in a hopper provided on one side in the longitudinal direction of the main body frame is introduced into a crushing device to be crushed, and the crushed object is carried out to the other side in the longitudinal direction of the main body frame by a conveyor. A self-propelled crusher, a hydraulic pump serving as a hydraulic source to a hydraulic actuator that drives the crushing device and the conveyor, an engine that drives the hydraulic pump, and a heat exchanger device including a radiator of the engine; A control valve device for controlling the flow of pressure oil from the hydraulic pump to the hydraulic actuator, a hydraulic oil tank for storing the pressure oil, a fuel tank for the engine, and operating means for operating the control valve device A power body having a driver's seat disposed on the other longitudinal side of the main body frame via a power body frame forming a basic lower structure thereof; The hydraulic pump, the engine, and the heat exchanger device are arranged side by side in the short side direction of the main body frame in the region on the other side in the longitudinal direction, and the fuel tank and the heat tank in the region on one side in the longitudinal direction of the power body. The hydraulic oil tank, the control valve device, and the driver's seat are arranged in this order from one side in the short direction of the power body to the other side, and the hydraulic oil tank and the fuel tank A self-propelled crusher, wherein a position of an edge on one side in the longitudinal direction is located on the other side in the longitudinal direction than a position of an edge on the one side in the longitudinal direction of the control valve device.