JP2013234549A - Self-propelled work machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a self-propelled work machine capable of: driving a work machine, an ancillary device thereof and a travelling device without mounting a power generator on a machine body with no difficulty by taking in hydraulic pressure to drive the travelling device from an external travelling work machine and electric power necessary for the work machine as well as the ancillary device thereof from an external power generator; preventing the power generator from a failure or a trouble caused by being exposed to dust from the work machine; and achieving a reduction in a production cost, simplification of a structure and facilitation of maintenance.SOLUTION: The self-propelled work machine with a work machine 3 mounted on a vehicle body 1 provided with a travelling device 2 has, on a machine body: an external hydraulic pressure taking connector 4 to allow a travelling hydraulic motor 21 of the travelling device 2 to take in hydraulic pressure from an external travelling work machine 5; and an external electric power cable connector 7 to take in necessary electric power.

Description

The present invention relates to a self-propelled working machine in which a crushing work machine, a crushed stone sorting work machine and the like (hereinafter referred to as “work machine”) are mounted on a vehicle body provided with a running apparatus (for example, a crawler traveling apparatus or a wheel traveling apparatus). About.

Work machines installed at crushed stone construction sites, tunnel construction sites, civil engineering sites, etc. (hereinafter referred to as “off-road sites”) need to be moved according to the situation.
In order to cope with this, a self-propelled working machine is conventionally known (see Patent Document 1).

A conventional self-propelled crusher has a working machine (jaw crusher) mounted on a vehicle body equipped with a traveling device, and a generator as a power source for the working device is mounted on the vehicle body, and this generator is a traveling device. It is also used as a power source.

JP 2011-25167 A

However, as in the prior art, it is necessary to mount a large generator to generate electric power necessary for driving the traveling device and the work machine.
When such a large generator is mounted on the vehicle body, installation flexibility is limited in terms of space, so a large generator must be installed near the work machine that generates dust, and the dust is exposed to the dust. This causes troubles and troubles, and there is a problem that a lot of work is required for maintenance.

The present invention captures the hydraulic pressure for driving the traveling device from an external traveling working machine outside the machine, and takes in the electric power necessary for the working machine, auxiliary devices, electric hydraulic units, etc. from the external electric power outside the machine, thereby generating power in the aircraft. Even if the machine is not mounted, the work machine, the auxiliary device, the traveling device, and the like can be driven without any trouble, and the trouble and trouble caused by the generator being exposed to dust from the work machine can be eliminated.

It is another object of the present invention to provide a self-propelled working machine capable of reducing manufacturing costs, simplifying the structure, facilitating maintenance, etc. by not mounting a generator on the airframe.

In order to solve the above problems, a self-propelled working machine of the present invention (Claim 1)
A self-propelled working machine having a work machine (3) mounted on a vehicle body (1) provided with a traveling device (2),
An external hydraulic intake connection part (4) for taking in hydraulic pressure from an external traveling work machine (5) outside the machine to the traveling hydraulic motor (21) of the traveling device (2), and for taking in necessary electric power It was set as the structure by which the cable connection part (7) for external electric power was provided in the body (1).

The present invention takes in hydraulic pressure for driving the traveling hydraulic motor (21) of the traveling device (2) from an external traveling working machine (5) (for example, a construction shovel) outside the apparatus, and the working machine ( 3) And auxiliary devices, electric hydraulic units, etc., power necessary for driving each part is provided by external power (for example, a separately installed generator 8, commercial power).

That is, the traveling hydraulic motor (21) of the traveling device (2) is driven by the hydraulic pressure from the external traveling work machine (5).
Also, the drive motor of each part such as the work machine (3) and the auxiliary device is driven by the external power taken from the external power cable connection part (7). In this case, if the drive motor is an electric motor, it is taken in External power is used as it is as a drive source for the electric motor.
When the drive motor is a hydraulic motor, the electric hydraulic unit mounted on the vehicle body is driven by the external electric power taken in, and the hydraulic pressure from the electric hydraulic unit is used as a drive source of the hydraulic motor. ) Can be driven by hydraulic pressure from the electric hydraulic unit.

In this way, by taking in the hydraulic pressure for driving the traveling device (2) from the external traveling work machine (5) outside the machine and supplying the power necessary for the working machine (3) and the auxiliary device with the external power outside the machine. The traveling device (2), the work machine (3) and the auxiliary device can be driven without any trouble without mounting the generator on the machine body (1), and the generator is exposed to dust from the work machine. Failures and troubles can be eliminated.
Further, since no generator is mounted on the airframe (1), manufacturing costs can be reduced, the structure can be simplified, maintenance can be facilitated, and the like.

1 is a schematic side view of a self-propelled working machine according to an embodiment of the present invention. 1 is a schematic plan view of a self-propelled working machine according to an embodiment of the present invention.

In the self-propelled working machine of this embodiment, a jaw crusher 3 as a working machine is mounted on a vehicle body 1 having left and right crawler traveling apparatuses 2 and 2 as a traveling apparatus.

In the present embodiment, the jaw crusher 3 as a crusher is an example of a working machine, but in addition, a crusher such as an impact crusher, a roll crusher or a vertical crusher, a sorting machine such as a grizzly feeder or a screen, or a crusher A crushing / separating continuous working machine or the like provided with a machine and a sorting machine can be used as the working machine.

The left and right crawler travel devices 2, 2 are configured such that crawlers 29, 29 (crawler belts) are arranged in parallel on the left and right of the vehicle body 1, It is wound between driven wheels 27 provided at the other end of the traveling frame 11.
A gantry 12 is attached to the upper portion of the traveling frame 11, and the vehicle body 1 is formed by the gantry 12 and the traveling frame 11, and the jaw crusher 3 described above is mounted on the vehicle body 1.
The traveling device is not limited to the crawler traveling device 2, and a wheel traveling device can be used.

The vehicle body 1 is provided with a traveling hydraulic motor 21 connected to the drive wheels 28 of the crawler traveling device 2 and an external hydraulic pressure intake connecting portion 4 connected to the traveling hydraulic motor 21.
The external hydraulic pressure intake connection 4 is for taking hydraulic pressure from an external traveling work machine 5 (power shovel in the embodiment) located at the same off-road site. The external hydraulic pressure intake connection 4 via the hydraulic hose 40 is used. Is connected to a hydraulic pressure supply connecting portion 51 of a hydraulic unit 50 provided in the external traveling work machine 5, the hydraulic pressure can be supplied to the traveling hydraulic motor 21.
Accordingly, the crawler traveling device 2 can travel by driving the traveling hydraulic motor 21 with the hydraulic pressure from the external traveling working machine 5.
The external traveling work machine 5 is not limited to the power shovel shown in the embodiment, and various construction work machines, civil engineering work machines, and other self-propelled working machines equipped with a traveling device can be used.

The basic structure of the jaw crusher 3 is that a fixed tooth 38 is fixed to a main body frame 39, and a moving tooth 36 that crushes the raw material in the crushing chamber 37 by moving away from the fixed tooth 38 is attached to the swing jaw 35. ing.
The upper portion of the swing jaw 35 is eccentrically attached to a crushing drive shaft 34 that is pivotally supported on the main body frame 39, and the moving teeth 36 are moved away from the fixed teeth 38 by swinging by the rotation of the crushing drive shaft 34. Crush.

One end of the crushing drive shaft 34 is connected to a crushing hydraulic motor 31 mounted on the vehicle body 1 by a V-belt, and an external power cable for supplying external power to the electric hydraulic unit 6 that drives the crushing hydraulic motor 31. A connecting portion 7 is provided on the vehicle body 1.

The electrohydraulic unit 6 is mounted on the vehicle body 1 and drives a hydraulic device by external power taken in via the external power cable connection portion 7 and drives the crushing hydraulic motor 31 and ancillary device by the hydraulic pressure. It is.
In addition, as described above, the traveling hydraulic motor 21 of the crawler traveling device 2 is driven by the hydraulic pressure taken into the external hydraulic take-in connection portion 4 from the external running work machine 5 via the hydraulic hose 40. It is also possible to drive the electrohydraulic unit 6 by external electric power taken in via the external power cable connecting portion 7 and to drive the traveling hydraulic motor 21 by its hydraulic pressure.
In addition, as external power, the generator 8 installed outside the apparatus or commercial power can be used.

Therefore, in order to supply electric power to the electrohydraulic unit 6 that drives the crushing hydraulic motor 31, the generator 8 installed outside the machine and the external power cable connection portion 7 are connected by the power cable 70, or for external power. Commercial power is taken into the cable connecting portion 7 via the power cable.

Reference numeral 90 in the figure denotes a raw material supply feeder as an accessory device, which conveys and supplies the raw material into the jaw crusher 3 by vibration accompanying rotation of a drive motor (not shown).

Reference numeral 91 in the figure denotes a discharge conveyor as an accessory device, which discharges the object to be crushed by the jaw crusher 3 to the outside of the apparatus, and is operated by a drive motor 92.
The discharge conveyor 91 is provided with a magnetic separator (not shown) for removing iron scraps and the like, and a hydraulic cylinder (not shown) for changing the inclination angle of the discharge conveyor 91. It has been.

Note that an electric motor can be used as the drive motor for the jaw crusher 3. In this case, the electric motor is driven using external power (generator or commercial power installed outside the machine) as it is.

The drive motor for the raw material supply feeder 90, the drive motor 92 for the discharge conveyor 91, and the drive motor for the magnetic separator can be either an electric motor or a hydraulic motor. The external electric power is directly used as the drive source of the electric motor, and when the drive motor is a hydraulic motor, the electric hydraulic unit is driven by the external power taken in, and the hydraulic pressure from the electric hydraulic unit is used as the drive source of the hydraulic motor.
The power of other incidental devices is also covered by external power, and a generator 7 or a commercial power source installed outside the machine is used.

In this way, the electric power necessary for the auxiliary devices such as the jaw crusher 3 and the raw material supply feeder 90 and the discharge conveyor 91 can be supplied by external electric power outside the machine. The crusher 3 and the accessory device can be driven without any trouble, and troubles and troubles caused by the generator being exposed to dust from the jaw crusher 3 can be eliminated.
In addition, since no generator is mounted on the machine body 1, it is possible to reduce manufacturing costs, simplify the structure, facilitate maintenance, and the like.

1 Car body 2 Traveling device 21 Hydraulic motor 3 for traveling 3 Jaw crusher (work machine)
4 External hydraulic intake connection 5 External traveling work machine (power shovel)
6 Electric hydraulic unit 7 External power cable connection 8 Generator

Claims (1)

A self-propelled working machine having a work machine (3) mounted on a vehicle body (1) provided with a traveling device (2),
An external hydraulic intake connection part (4) for taking in hydraulic pressure from an external traveling work machine (5) outside the machine to the traveling hydraulic motor (21) of the traveling device (2), and for taking in necessary electric power A self-propelled working machine characterized in that an external power cable connection (7) is provided in the machine body (1).

Images