JPH05184968A - Mobile crusher - Google Patents

Abstract

PURPOSE:To provide an energy sawing on type movable crusher capable of producing high-quality aggregate by equipping a Diesel engine proper in fuel consumption, removing earth and sand of impurities and crushing rocks at a mining site. CONSTITUTION:A hopper 10, a vibrating feeder 20 equipped with a grizzly and a load cell, a crusher 30 and a transporter 40 are placed on a freely traveling crawler 2. Further, a movable crusher is equipped with a vibrating screen 50 for removing earth and sand from undersize of the vibrating feeder 20 equipped with the grizzly, an auxiliary transporter for carrying out earth and sand and also a controlling device 100 for adjusting the injection quantity of fuel for a Diesel engine 70 in correspondence with the load capacity.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-propelled mobile crusher used for collecting and crushing rocks and the like.

[0002]

2. Description of the Related Art Conventionally, for the production of aggregates for crushed stones, concrete and asphalt, the crushed stones have been moved to a rock mining site or in the vicinity of a cutting face and crushed on the spot to crush the rocks. A mobile crusher was used to transport the slab as it was. FIG. 6 shows one embodiment of the mobile crusher 1, in which a crusher 30 for crushing rock received from a hopper 10 is mounted on a frame 3 of a crawler 2 which travels by an endless track by a caterpillar 2a, and a diesel engine 4 is rated. The output drives the hydraulic pump 6 and the hydraulic motor 7 via the rotary shaft 4a and the chain wheel 5. As shown in FIG. 7, the crusher 30 uses a jaw crusher for crushing by crushing by inserting and compressing rock between a fixed crushing plate 35 and a movable crushing plate 36 that swings back and forth. The movable crush plate 36 is swung through the pulley and the eccentric rotation shaft 33. The crushed crushed products are fed from the discharge passage 30A to the belt conveyor 40.
Is discharged to the outside of the machine by a belt conveyor and other transportation machines. 8 is an operator room.

[0003]

In the conventional movable crusher described above, when rocks are put into the hopper 10 by the shovel loader, the rocks are still collected at the mining site or the cutting face, and are about 700 mm. Since it is a large lump, a large impact load is applied to the crushing portion of the crusher 30 arranged immediately below the hopper 10, which causes problems such as damage to equipment and shortening of life. Also, in the supplied rock, the crusher 30 together with the large rocks, the sediment content mixed at the time of blasting at the mining site and the fine particles already crushed to about 20 to 30 mm are included.
Since it is supplied to the crusher, there is a drawback that the crushed product of crusher is mixed with sediment and unnecessarily fine crushed product is generated. In addition, the rock supply was discontinuous due to the batch loading by the shovel loader, and during this time, fully driving the diesel engine at the rated speed was a waste of fuel cost and increased running costs.

[0004]

In order to solve the above-mentioned problems, in the movable crusher of the present invention, a hopper for receiving the supplied rock and a supplied rock are provided on a movable crawler. It is equipped with a vibrating feeder with grizzly that sorts and transports into large lumps and fine granules, a crusher that crushes the rock, and a transport machine for crushed products, and removes sediment from the fine granules A vibrating screen that discharges the product to the transporting machine and an auxiliary transporting machine that transports the sediment are provided, and a diesel engine and a diesel engine as a power unit for driving the vibrating feeder with grizzling, the crusher, the transporting machine, the vibrating screening machine, and the auxiliary transporting machine. A mobile crusher equipped with a hydraulic unit, wherein the vibrating feeder with grizzle has a weighing function for detecting the load of a load, and the diesel engine is loaded according to the weight of the load. Equipped with a control device for adjusting the output of.

[0005]

In the mobile crusher of the present invention, the rocks thrown into the hopper fall onto a vibrating feeder with grizzly grips (also called grizzly feeders), where fine particles and sediment are removed in advance and the rocks are removed. Only by the transfer action of the vibrating feeder with grizzle, it is supplied to the crusher located downstream of the crusher in a fixed amount, which is advantageous in terms of equipment protection because an unnecessarily large impact load or cumulative load is not applied to the crusher. The fine particles and sediment that have passed through the grizzly in advance are supplied to the vibrating sieve and separated into fine particles and sediment. The sediment is separately discharged to the auxiliary transport machine and the fine particles on the sieve are transported under the crusher. Join the plane. The load of the vibrating feeder with grizzling is constantly measured by the load cell, and the fuel injection amount of the diesel engine is controlled to a preset value according to the load value. When the load is large, that is, the crusher is used. When the load is large, the fuel injection amount of the diesel engine is correspondingly increased to increase the output, and when the load is small and the crusher load is small, the fuel injection amount is reduced to decrease the output.
The above adjustment control issues a command to the diesel engine via the control device to which the load measurement value is input.

[0006]

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

The movable crusher 1 is provided with a grinder-type vibrating feeder disposed on the hopper 10 and the lower side thereof on the frame 3 of the crawler 2 which is run by an endless caterpillar 2a via the column bases 10a and 10b and the load cell 20c. Vibration feeder 2 with 20 loaded and grizzled
As shown in FIG. 2 and FIG. 3, in parallel 0, parallel grizzly rivers 20a spaced at appropriate intervals in the longitudinal direction are arranged in multiple stages, and the whole is inclined horizontally toward the downstream side or slightly upward toward the downstream side. The drive motor 20b is configured to give a high-speed micro-vibration for transferring the load to the downstream side. A chute 21 is provided below the grizzling vibrating feeder 20 to receive fine particles and sediment which have passed between the grizzling rivers 20a and sort fine particles and sediment, for example, a vibrating screen 50 having a mesh of 10 mm is provided. A chute is provided below the vibrating screen 50 for collecting the screen and dropping it to the auxiliary transporting machine 60 protruding to the side surface of the movable crusher 1. On the other hand, a chute is provided so that the fine particles on the screen of the vibrating screen 50 can be dropped to the transportation machine 40 described later.
A crusher 30 is disposed immediately downstream of the grizzling vibrating feeder 20, and the crushed products of the crusher 30 are inclined from the lower side toward the downstream side in the longitudinal direction of the movable crusher 1 and are transported (main conveyor). A chute is provided to drop to 40. In addition, a diesel engine 70, a fuel tank 80 for storing light oil that is fuel oil for the diesel engine 70, and an oil tank 82 for storing hydraulic oil for hydraulic equipment are fixedly installed on the downstream frame 3.
On both sides of the upper portion of the crusher 30 are installed inspection lands 92 so that workers can go up and down via stairs 90.

FIG. 4 shows a crusher (jaw crusher) 3.
No. 0, and the swing jaw 3 whose upper part is attached to the fixed jaw 32 fixed to the casing 31 and the eccentric rotation shaft 33.
4, the rock is crushed by the fixed crush plate 35 attached to the fixed jaw 32 and the movable crush plate 36 attached to the swing jaw 34. 33a is a flywheel (flywheel). At the lower part of the swing jaw 34, a toggle plate 37 is attached to a frame 31 and a supporting rod 38 is attached.
Connected to. 39 supports the toggle plate 37.
8 and the lower end of the swing jaw 34 so as not to be separated from FIG.
It is a compression coil spring that pulls in the right direction. In addition, the hopper 10 and the vibrating feeder 20 with grizzling are integrated,
An inclined side wall may be provided at the top of the grizzled vibrating feeder 20.

The vibrating feeder with grizzling 20 is a frame 3
The two pairs of right and left column bases 10a and 10b that are vertically erected are fixedly mounted via load cells 20c, and the measured values of the loading amount of the vibrating feeder with grizzling 20 that are measured moment by moment are converted into electric signals to move. The operation command is sent to the fuel injection valve of the diesel engine 70 according to a program preset by the control device 100, which is transmitted to the control device 100 installed at the key points of the expression crusher 1 (installed on the landing 92 in this embodiment). To adjust the output to match the load.
However, in this case, since there is a time lag during which the rock is sent from the vibrating feeder with grizzling 20 to the crusher 30, it is suitable for the actual situation to operate with a timer corresponding to that time (for example, 5 to 10 seconds). Be done.

The operation of the mobile crusher of the present invention constructed as above will be described. Mobile crusher 1
The front end (right side in FIG. 1) of the is directed to the mining site, the diesel engine 70 is started, and after confirming the start of each device, the collected rocks are supplied to the hopper 10 by a transport machine such as a shovel loader. The rocks supplied to the hopper 10 are moved to the crusher 30 by the vibrating feeder 20 with grizzly, fine particles and sediment pass through the grizz river 20a, and are separated into fine particles and sediment by the vibrating screen 50,
The fine particles are transferred to the main conveyor 40, and the sediment is transferred to the side conveyor 60. The rock entering the crusher 30 by the vibrating feeder 20 with grizzly is crushed into fine particles set to a prescribed size, and the main conveyor 40
The subsequent transportation means, for example, a long belt conveyor or the like. Further, the weight of rock on the vibrating feeder with grizzly is measured every moment by the load cell 20c, and at the time of entering the crusher 20 in the next process, the load amount,
In other words, the fuel injection amount of the diesel engine 70 is appropriately changed according to the crusher load, and the output is adjusted to an appropriate output, so that operation with less waste energy is performed.

As described above, in the mobile crusher of the present invention, when crushing rocks collected at the mining site or face by the crusher, fine grains and sediment are removed by the vibrating feeder with grizzly, so that impurities are removed. High-quality aggregate can be produced because only the large lumps are crushed. Fine particles that do not need to be crushed pass through under the grizzly river before being sent to the crusher and are removed beforehand. The impurities and sediment are removed and the crushed products of the crusher are combined later to improve the production efficiency. Is good, the generation of unnecessary particles can be prevented, and the fuel injection amount of the diesel engine is appropriately changed according to the crusher load.
Exhibits energy saving effect.

[0012]

As described above, since the movable crusher of the present invention is constructed as described above, it exhibits the following excellent effects. Crusher, conveyor, vibrating feeder with grizzle,
The vibrating screen and the diesel engine or hydraulic unit that powers these are installed on the crawler, each device is placed in a lightweight and compact structure, and is self-propelled, so that it can be moved to any mining site. It is possible to produce aggregate from which impurities have been removed and the production efficiency is high. Since each device is driven by a hydraulic motor driven by a diesel engine, it does not require any power source and can be run or crushed every day simply by periodically refueling. Moreover, since the amount of fuel used is appropriately changed according to the load, the energy saving effect is excellent. The loading method of the raw material rock is power shovel,
Yumbo, dump truck, etc. can be freely selected and no special loading equipment is required. In addition, the transportation of crushed products is optional such as belt conveyors and dump trucks.

[Brief description of drawings]

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

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

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

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

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

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

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

[Explanation of symbols]

 1 Mobile Crusher 2 Crawler 2a Caterpillar 3 Frame 10 Hopper 20 Grizzling Vibration Feeder (Grizzli Feeder) 20a Grizzle River 20b Drive Motor 20c Load Cell 21 Chute 30 Crusher 31 Casing 32 Fixed Jaw 33 Eccentric Rotation Shaft 33a Flywheel 34 Breaking Swing Jaw Plate 36 Movable Crush Plate 37 Toggle Plate 38 Support Rod 39 Compression Coil Spring 40 Transport Machine (Main Conveyor) 50 Vibrating Sieve (Sand Separator) 60 Auxiliary Transport Machine (Side Conveyor) 70 Diesel Engine 80 Fuel Tank 82 Oil Tank 90 Stairs 92 Landing 100 control device

Claims (1)

[Claims] 1. A hopper for receiving the supplied rock, a vibrating feeder with a grizzle for sorting the supplied rock into large blocks and fine particles, and a crusher for crushing the rock, on a movable crawler. A grinder is equipped with a crushed product transporter, and is provided with a vibrating screen that removes sediment from the fine particles and discharges the sieve product to the transporter, and an auxiliary transporter that transports the sediment. A movable crusher equipped with a diesel engine and a hydraulic unit as a power unit for driving a vibrating feeder with crusher, a crusher, a transport machine, a vibrating screen, and an auxiliary transport machine, the vibrating feeder with a grizzle is a meter for detecting a load of a load. A mobile crusher having a heavy function and including a control device for adjusting the output of the diesel engine according to the weight of the weighted load.