JP3337782B2 - Crushing plant vehicle that can run on the road - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crushing plant for crushing aggregates such as concrete, asphalt, rocks and the like generated in buildings, structures, excavations, etc. to a desired size to produce reusable crushed materials. The present invention relates to a crushing plant vehicle capable of traveling on a road installed on a trailer capable of traveling on a general road towed by being connected to a tractor.

[0002]

2. Description of the Related Art In recent years, especially in cities, residential areas, urban areas, etc., demolishing and rebuilding of middle- and high-rise houses, buildings, structures, and the like have been actively performed, and redevelopment has been carried out. that time,
As a method of treating aggregates such as generated concrete and asphalt, waste materials such as buildings and structures, concrete,
A method of crushing asphalt or other lump material at the site where it is generated using a crusher, and reusing or recycling the crushed material as base material for road surface materials, buildings, structures, etc., or as backfill material after excavation Is being done. According to this method, it is possible to reduce the amount of dumping of the lump itself, and it is not necessary to find a landfill site and a dumping place of the lump and transport the lump over a long distance by a vehicle or the like. At the same time, limited resources such as gravel can be effectively used, which can contribute to environmental protection and resource protection.

[0003] An installation-type crushing plant which is installed and used in a treatment plant as a crushing plant for crushing aggregates such as concrete, asphalt, waste materials, etc., basically has a crusher for crushing such aggregates mounted on a trailer. Then, the crusher is transported to a predetermined processing site, and the crusher is removed from the trailer at the processing site for the lump, and is assembled and arranged. In addition to the crusher, a vibrating sieve that sorts the crushed material, a driving device such as a generator, and a conveyor device such as a conveyor can also be mounted on the trailer. , Had to be placed. Setting up a crushing plant at a different treatment site from the place where such agglomerates are generated is a major task in transporting and assembling, and requires only a lot of manpower. And it is difficult to secure a crushing plant from the viewpoint of securing space and land prices.
Also, the farther the crushing plant is from the place where the lump is generated,
There is a problem that the transportation cost is too high to transport the lump. In addition, even if a crushing plant can be built close to the place where the lump is generated, it is not preferable because noise and vibration are generated by the operation of the crushing plant, especially in urban areas and residential areas. Is not preferred. On the other hand, a mobile crushing plant vehicle with wheels has also been developed, but it is intended to move only inside the treatment plant. In order to travel on the road with a crushing plant installed, it is necessary to satisfy the restrictions on the width and height of vehicles according to the safety standards of the Road Transport Vehicle Act (hereinafter simply referred to as security standards), which is generally expected. In general, a mobile crushing plant vehicle having an agglomerated material processing capacity cannot run on a general road because of the regulations based on such security standards.

Therefore, the applicant of the present invention has provided a crusher for crushing and reusing a lump having an upper portion provided with a hopper for inputting lump material such as buildings and structures, and concrete and asphalt, and the crusher. A vibrating sieve for sorting the crushed material, a conveyor for transferring the crushed material crushed by the crusher from the crusher to the vibrating sieve, and a crushed material of a predetermined size or more selected by the vibrating sieve. A crushing plant consisting of a return conveyor for feeding the crushing machine from the vibrating sieve to the crushing machine for re-crushing, and a driving device such as a generator for driving these devices is mounted on a trailer capable of traveling on a road so as to conform to safety standards. We have already proposed a crushing plant vehicle that can be installed on a road and that can run on the road so that noise and vibration can be reduced as much as possible even if the crushing plant is operated in an urban area or an urban area. Gantaira No. 5-71214 (JP-A-6
254429))]. According to the crushing plant vehicle capable of traveling on the road, it is possible to travel on the road with the crushing plant installed on the trailer, and to transport the trailer itself with the crushing plant to a site where crushed materials such as concrete and asphalt are generated. In addition, the crushing process of the lump can be performed immediately while the crushing plant is installed on the trailer, and the crushing process can be performed efficiently without taking time for the work setup. is there.

[Problems to be solved by the invention]

However, in such a crushing plant vehicle capable of traveling on a road, when a lump is put into the crusher and crushing of the lump is performed, dust generated inside the crusher due to the crushing of the lump. However, the crushed material scatters directly to the outside from the crushed material outlet, and when the crushed material falls along with the dust on the conveyor, the dust rises due to the impact at that time, and the crushed material outlet and the crushed material are passed through the vibrating sieve. It scatters to the outside centering on the conveyer to be conveyed. And when there is a wind, the dust scatters downwind and pollutes the surrounding environment with the dust. The dust is not preferable not only for workers working on site but also for various devices mounted on the crushing plant vehicle. Also, in urban areas, residential areas, and the like, dust scattered by the wind may harm health and life for residents. In this way, the adverse effects on the health of workers and residents, the surrounding environment, and other equipment related to the crushing plant due to the scattering of dust generated during the operation of the crushing plant cannot be ignored.
There is a problem that there is room for improvement with respect to the prevention of scattering and soaring of dust in the crushing work of a lump.

An object of the present invention is to solve the above-mentioned problems, and comprises a tractor equipped with an engine and a trailer connected to the tractor and towed, and crushes a lump on a body frame of the trailer. A crusher, a vibrating sieve positioned at the front of the trailer, for selecting crushed materials generated by crushing the lump with the crusher, and crushing the crushed materials by the crusher from the crusher. A conveyer for conveying to the vibrating sieve, a return conveyor for recirculating the crushed material of a predetermined size or more selected by the vibrating sieve from the vibrating sieve to the crusher, and a predetermined conveyed by the vibrating sieve. A crushed material discharging means for discharging crushed material having the following sizes to the outside of the trailer, and an engine for driving the crusher, the vibrating sieve, the transport conveyor and the return conveyor. A crushing plant vehicle capable of traveling on a road provided with a driving device including a power source such as a power source, a hydraulic generator or a generator, and an operation panel, the starting end of the conveying path including the crushed material outlet of the crushing machine. From outside to
It is an object of the present invention to provide a crushing plant vehicle capable of traveling on a road, which has taken measures to prevent scattering of dust.

[0007]

SUMMARY OF THE INVENTION According to the present invention, there is provided a crusher for crushing a lump on a vehicle body frame supported on a tire via an air cushion and a leaf spring and near a rear wheel of the tire. A crushing plant vehicle equipped with a built-in engine and capable of traveling on a road, a vibrating sieving machine installed at a front part on the body frame and crushing the lumps by the crushing machine, and crushing by the crushing machine. The crushed material is installed on the vehicle body frame to convey the crushed material from the crusher to the vibrating sieve, and is inclined upward from a discharge chute at the lower portion of the crusher to a hopper of the vibrating sieve. A conveyor that extends directly to the sifter, which is installed on the body frame to re-crush the crushed material having a predetermined size or more selected by the vibrating sieve, A return conveyor that inclines upward to the lump hopper of the crusher and extends directly in one direction, a crushed material discharge unit that discharges the crushed material having a size equal to or less than a predetermined size selected by the vibrating sieve, and A dust cover that covers a transport path of the transport conveyor over a predetermined range in a transport direction that extends directly in one direction from a discharge position of the crusher, and the crusher, the vibrating sieve, Driving the transport conveyor, the return conveyor, and the crushed material discharging means, and damping at least the impact force and vibration generated by the crusher with the air cushion, the leaf spring, and the tire. Crushing plant vehicle.

In this crushing plant vehicle capable of traveling on a road, a flexible dust scattering prevention wall is provided at least at a front end of the dust-proof cover as viewed in the transport direction of the transport conveyor, and another dust-proof wall is provided below the transport conveyor. It is covered with a cover.

The crushing plant vehicle capable of traveling on a road has a driving device including a power source for driving the crushing machine, the vibrating sieve, the transfer conveyor, and the return conveyor, and an operation panel. A dust collector is installed on a frame, and a dust collection duct of the dust collector is connected to the inside of the dust cover.

The crushing plant vehicle capable of traveling on a road is provided with a water injection nozzle for injecting water for preventing scattering of dust in the dustproof cover on the transfer conveyor and in a hopper for charging a lump to the crusher. It is a thing.

The conveyor for conveying the crushed material discharged from the crusher to the vibrating sieve has a telescopic structure so that the bottom can be raised to increase the ground height.

[0012] Since the crushing plant vehicle capable of traveling on the road is configured as described above, the dust or the crushed material starting to scatter directly from the crushed material outlet of the crusher and the crushed material are transferred from the crushed material outlet to the transport conveyor. The dust soared by the impact of the dropping is prevented from being greatly scattered to the outside by the dustproof cover. When the crushing plant vehicle capable of traveling on the road is provided with a flexible dust scattering prevention wall at least at a front end of the dustproof cover viewed in the conveying direction of the conveyor, a crushed material outlet of the crusher is provided. Dust that has begun to scatter on the conveyor or in the vicinity thereof is further prevented from scattering to the outside air by the dustproof cover, and is also prevented from scattering to the outside air at the front of the dustproof cover. Since the dust scattering prevention wall is flexible,
Even when the crushed material placed on the transport conveyor hits the dust scatter prevention wall, the crushed material is pushed away from the dust scatter prevention wall, is continuously carried, and is transported to the vibrating sieve. Further, when the crushing plant vehicle capable of traveling on the road is one in which the lower side of the conveyor is covered with another dust cover, the scattered dust tries to scatter downward from between the conveyor and the dust cover. Also, it is not blocked by the dustproof cover that covers the lower side of the transport conveyor, and does not fly to the outside air. In addition, when the dust-proof cover is provided with an injection nozzle for injecting water for preventing dust scattering, it is easy to treat the fallen sewage, and when traveling on the road, the pebbles whose tires and the like are repelled. To protect the conveyor belt of the conveyor.

The crushing plant vehicle capable of traveling on the road has a dust collector installed on the body frame of the trailer,
When the dust collection duct of the dust collector is connected to the inside of the dust cover, the dust collector forcibly sucks the dust flying up and scattered in the dust cover by the duct to remove only the dust. Since the inside of the dust-proof cover becomes negative pressure due to forced suction and exhaust through the duct, dust does not leak from the dust-proof cover or a small gap around it. Also,
When the crushing plant vehicle capable of traveling on the road is provided with an injection nozzle for injecting water for preventing scattering of dust, at least in the dustproof cover on the transfer conveyor,
The dust generated during the crushing operation of the clumps adheres to the water droplets even if scattered, increases in weight, and falls without floating.
Also, it is necessary to prevent water droplets from adhering and scattering as to dust that is going to soar from the conveyor.

Further, the conveyor for conveying the crushed material discharged from the crusher to the vibrating sieve has a telescopic structure so that the bottom can be raised to increase the ground height. When operating the crushing plant, the bottom of the conveyor is lowered to lower the ground level to a position where the crushed material discharged from the crusher can be received, and the crushed material is transferred to the vibrating sieve. In addition, when the crushing plant is not operating, the height of the conveyor can be raised by raising the bottom of the conveyor until the crushing plant vehicle meets safety standards.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a crushing plant vehicle capable of traveling on a road according to the present invention will be described below with reference to the drawings. This crushing plant vehicle capable of traveling on the road is provided with a crushing plant which can be applied to crush a lump such as concrete, asphalt, waste material and the like and recycle it as granular material such as gravel, that is, crushed material. Is transported directly to the lump generation site, where the lump can be crushed and processed into recyclable crushed material.

As shown in FIG. 1, the crushing plant vehicle capable of traveling on the road includes a tractor 1 having an engine 1E mounted thereon.
And a trailer 2 connected to a tractor 1 and towed. In this crushing plant vehicle capable of traveling on the road, the rear portion of the body frame 4 constituting the trailer 2 is supported by the rear wheel 3 via an air cushion and a leaf spring (not shown) which the trailer 2 originally has. The front part is connected to the tractor 1 by a connecting device 77 such as a coupler. Although not shown in detail, the vehicle body frame 4 is composed of a chassis originally included in the trailer itself and various reinforcing frames for reinforcing the chassis. Steel plates, wire mesh, etc. can be arranged.

In this crushing plant vehicle capable of traveling on the road,
In particular, a crusher 6 for crushing a lump is set or installed near the rear wheel 3 on the body frame 4. Crusher 6
Can be used, such as an impact crusher or a joc crusher, and is preferably installed on the body frame 4 via a vibration-proof material such as rubber so that impact force, vibration and the like do not directly act on the body frame 4. The crushing machine 6 includes a hopper 16 for charging the crushed material into the crushing machine 6, a discharge hopper 11 for discharging the crushed material, a discharge chute 12, and the like. The discharge chute 12 extends below the body frame 4. The crusher 6 is driven by a belt transmission from a motor 195. The belt transmission portion is covered with a cover 196, which provides safety for workers and protection from dust scattered from the hopper 16 of the crusher 6. You are.

A vibrating sieving machine 7 is set or installed at a front portion on the vehicle body frame 4. The crushed material generated by crushing the lump by the crushing machine 6 is crushed by the conveying conveyor 10. Transported to The crushed material having a size equal to or larger than a predetermined size selected by the vibrating sieve 7 is sent back to the crusher 6 by the return conveyor 14, where it is crushed again and crushed into crushed material having a size suitable for recycling. The crushed material having a size equal to or smaller than a predetermined size selected by the vibrating sieve 7 is carried out to the outside through a carry-out conveyor 54 serving as crushed material discharging means. In addition, crusher 6, vibrating sieve 7, transport conveyor 10,
In order to drive the return conveyor 14, the carry-out conveyor 54, and the like, a drive source 8 such as an engine, a hydraulic pressure generator, and a generator, and a drive device such as an operation panel 9 are mounted on the body frame 4. Further, a front outrigger 5 is provided at the front of the body frame 4 to support the body frame 4 when the crusher 6 is operated. The above structure of the crushing plant vehicle capable of traveling on the road is basically the same as that of the invention according to the prior application by the present applicant.

The crushing machine 6, the vibrating sieving machine 7 and the like are operated with the rear wheel 3 in contact with the ground. In particular, the crushing machine 6 includes a force such as an impact force and a vibration generated by crushing a crushed material such as concrete or asphalt. The portion is configured to absorb and absorb with an air cushion and a leaf spring provided in the trailer 2 itself. Therefore, a part of the force such as the impact force and the vibration generated by the crusher 6 is buffered and absorbed by the air cushion and the leaf spring, so that the noise and the vibration generated by the operation of the crushing plant vehicle are reduced to the minimum. In addition to this, it is possible to prevent instantaneous excessive force from acting on the rear wheel 3. The trailer 2 has a rear portion of the vehicle body frame 4 for supporting a force such as an impact force or vibration generated by the crusher 6 that is higher than a predetermined value.
A rear column 78 is provided which can be expanded and contracted by hydraulic pressure, a link, a screw, or the like. Therefore, when the crushing machine 6 is operated, the rear strut 78 is extended almost to the grounding state or to the grounding state by a floor plate or the like, and when the crushing machine 6 exerts an excessive load on the trailer 2, the rear column 78 supports the body frame 4. And trailer 2
The air cushion and the leaf spring can be protected.

[0020] The crushing plant vehicle capable of traveling on the road includes:
As shown in FIGS. 1 and 2, a drive source 8, an operation panel 9, and the like are arranged in an appropriate space such as a rear portion of the vehicle body frame 4 in a well-balanced manner. The transport conveyor 10 is of a bucket conveyor type, and vibrates with a discharge hopper 11 and a discharge chute 12 provided at a lower portion of the crusher 6 in order to transport the processing material discharged from the crusher 6, that is, the crushed material, to the vibrating sieve 7. Sieve machine 7
The hopper 13 is connected to the hopper 13 and is inclined toward the front of the vehicle. The conveyor 10
In particular, it is installed on the vehicle body frame 4, and extends directly from the discharge chute 12 below the crusher 6 to the hopper 13 of the vibrating sieving machine 7 in one upward direction. When the size of the crushed material crushed by the crusher 6 is larger than a predetermined size, the returning conveyor 14 returns the crushed material to the crusher 6 again to crush it. It extends in an inclined state that rises toward the rear of the vehicle so as to connect the discharge unit 15 and the hopper 16 of the crusher 6. The return conveyor 14 is, in particular, installed on the vehicle body frame 4 and extends upward in one direction directly from the discharge portion 15 of the vibrating sieve 7 to the lump hopper 16 of the crusher 6. . In the space on the vehicle body frame 4 close to the vibrating sieve 7, dust is prevented from being scattered when a lump is crushed by the crusher 6 or when the crushed material is sorted by the vibrating sieve 7. A water tank 17 for storing water sprinkled against dust is provided.

Next, the details of the conveyor 10 employed in the embodiment of the crushing plant vehicle capable of traveling on the road and the conveyor 1 relating to the crushed material outlet of the crusher 6 will be described.
A description will be given of the dust-proof measures taken with respect to 0.

In this crushing plant vehicle capable of traveling on a road, as shown in FIG. 1, the transport conveyor 10 has a fixed frame portion 21 on the front side of the vehicle, that is, on the upper side, and is movable with respect to the fixed frame portion 21. It is composed of a moving frame 23 located on the rear side, that is, a lower side, a roller group including a plurality of rollers provided on a fixed frame section 21, and a conveyor belt 20 stretched over the roller group. The conveying conveyor 10 can be operated by using one of the rollers, for example, the driving belt roller 26 at the upper end of the conveying conveyor 10 as a driving roller that rotates integrally with a driving shaft. Further, the conveyor 10 has a plurality of carrier rolls 28 for horizontally supporting the conveyor belt 20 in the width direction at the upper part, and a return carrier 29 for supporting the lower part of the conveyor belt 20. As shown in the lower part of the conveyor 10 in FIG. 4, a tail belt roller 27 is rotatably fitted to a roller shaft 24 disposed at a lower end of a moving frame 23 of the conveyor 10.

As can be seen from the cross-sectional view shown in FIG. 5, the conveyor belt 20 is a flexible belt which is rolled and supported by inclined rollers 113 in the transport section. The rollers 113, 113 are arranged symmetrically with respect to the center line in the conveying direction of the conveying conveyor 10, and have a lower bearing 111, 111 on the center side and a higher height on both sides in the width direction with respect to the conveyor base 110. The central side of the conveyor 10 is rotatably supported by the tall bearings 112 and 112 in a low inclined state. A pair of triangular conveying claws 114, 1 are arranged on the conveying surface of the conveyor belt 20 at predetermined intervals in the conveying direction and side by side in the width direction.
14 are formed, and V
When it is supported in a state of being bent in the shape of a letter,
Both adjacent sides of 4,114 approach each other with a slight gap 115 therebetween, so that the transported object on which the granular material or the powder, which is the crushed material, is deposited can be accurately captured and transported upward. I have. When the conveyor belt 20 descends around the uppermost part, it is not supported by the inclined roller as shown by 113, so that as shown in FIG.
4,114 returns to the flat state of the open bottom and circulates to the bottom.

As shown in FIG. 1, the dust proofing is provided on the conveying surface of the conveying conveyor 10 over a half area from the discharge chute 12 of the crusher 6 to the vibrating sieve 7 in the conveying direction. A cover 120 is provided. The dustproof cover 120 is divided into two cover pieces 121, 121 which are rotatable by hinges 122 with respect to the conveyor base 110 or a member integral with the conveyor base 110.
Consists of The cover pieces 121, 121 are
At the center upper part of 0, they are in abutting state or in a partially overlapping state, and are fixed to each other by a well-known fixing tool 123. Each of the cover pieces 121 has a substantially quarter-cylindrical shape. Therefore, the dustproof cover 120 has a substantially semi-cylindrical structure, and covers the transport path of the transport conveyor 10. When the fixing tool 123 is released, the cover pieces 121, 1
The cover piece 21 opens in opposite directions about the hinge 122 as a rotation center, as indicated by the arrow P in FIG.
The cleaning, inspection, or repair of the conveyors 21 and 121 and the conveyor 10 can be easily performed. The dust cover 120 is provided so as to be connected to the discharge chute 12 of the crusher 6 without any gap, so that dust does not leak from the joint. The discharge chute 12 of the crusher 6 extends obliquely downward with respect to the conveyor 10, and its lower outlet end is located immediately adjacent to the conveyor belt 20. Conveyor 1
The dust that falls to 0 and soars does not scatter behind the discharge chute 12.

At the front end of the dust-proof cover 120, that is, at the front end in the transport direction of the transport conveyor 10, and at a predetermined interval inside the dust-proof cover 120, dust scattering prevention walls 130 as shown in FIG. 5 are provided. . Dust scattering prevention wall 130
Has a crescent shape as a whole and is formed from a flexible rubber droop. Outer peripheral portion 13 of dust scattering prevention wall 130
1 is fixed to the inner surface of the dust-proof cover 120 by appropriate fixing means 136, for example, bolts and nuts provided at a plurality of locations spaced at regular intervals as shown in FIG.
When the conveyor belt 20 of the conveyor 10 is supported in a state of being bent in a V-shape by the rollers 113, 113, the inner peripheral portion 132 of the dust scattering prevention wall 130 is closer to the conveyor claw with a slight gap 115 left therebetween. It is located above the upper side of 114, 114 with a relatively small gap 135. Therefore, the dust scattering prevention wall 130 does not directly interfere with the transfer claws 114, 114 of the transfer conveyor 10, and the gap 135 is relatively narrow, so that the crusher 6
Dust generated near the outlet of the discharge chute 12 is effectively prevented from passing through the dust scattering prevention walls 130 provided in multiple stages one after another and going out of the dustproof cover 120. The dust scattering prevention wall 130 is provided with cuts 133 in a plurality of locations in the radial direction, and is divided into rubber hanging pieces 134. Therefore, the dust is prevented from being deposited on the transport conveyor 10 by the transport claws 114, 114 and is accurately captured. Even if the height of the transferred object reaches the dust scattering prevention wall 130,
Only the required minimum number of rubber hang pieces that come into contact with the transferred object are bent, and can pass through the transferred object as indicated by arrow Q in FIG.

As shown in FIG. 2, a dust collector 140 is provided near the dustproof cover 120 on the body frame 4 of the trailer 2 of the crushing plant vehicle. Dust collector 14
For 0, a known structure such as a filter type can be used. The dust collector 140 is connected to a relatively upper portion of the dust-proof cover 120 via a duct 141, and forcibly sucks the dust scattered and floating in the dust-proof cover 120 to remove the dust. Due to the forced suction, the inside of the dustproof cover 120 has a negative pressure, so that the outside air is sucked from the outside through the gap formed around the dustproof cover 120 such as the gap 135. ， Dust does not scatter outside.

As shown in FIGS. 4 and 7, a conveyor lower cover 150 is provided below the conveyor 10 so as to correspond to the return path of the conveyor belt 20. The lower conveyor cover 150 includes an upper cover 151 fixed to the conveyor base 110 and a hinge 153 having a rotation axis in a direction transverse to the conveyor 10 with respect to the upper cover 151.
And a lower cover 152 that can rotate up and down. The cross-sectional shapes of the upper cover 151 and the lower cover 152 are the same as each other, and the transport claws 11 on the conveyor belt 20 traveling on the return path with the base portion being flat.
4, 114, it has a substantially W-shaped cross-sectional shape along the contour, so that no useless space is created between the conveying claws 114, 114 and the conveyor lower cover 150. To prevent the lower cover 152 from opening downward, a chain 155 is hung over the conveyor base 110 so as to hold and lift the lower cover 152. One end of the chain 155 is locked to the conveyor base 110, and the other end is locked to a hook 156 attached to the conveyor base 110 so that the chain length can be adjusted. A stopper angle 154 is attached near the lower end of the lower cover 152, and engages with the chain 155 to prevent the chain 155 from being deflected. By providing the conveyor lower cover 150, the conveyor belt 20 of the conveyor 10 can be protected, for example, while traveling on a road, and also catches the dust scattered on the conveyor 10 and slightly falling. be able to. In the case of spraying water for preventing dust scattering, which will be described later, a part of the falling water can be guided by the lower conveyor cover 150 and appropriate water treatment can be performed. When the chain 155 is detached from the hook 156 and the lower cover 152 is rotated downward as shown by an arrow R in FIG.
Inspection and repair of the conveyor belt 20 on the return path and dust removal can be easily performed.

Dust generated as a result of crushing a lump is easily scattered at various places in the crushing plant. Therefore, in the crushing plant vehicle of the present invention, the water in the water tank 17 provided on the body frame 4 is supplied by the water injection system 160 and is injected toward a location where dust is generated or is likely to be generated. . The water injection system 160 is an injection pump 1 provided on the body frame 4 to take in water in the water tank 17.
61 and the water supply conduit 1 extending from the injection pump 161 to various places
62 and an injection nozzle described later provided at the end of the water supply conduit 162. One of the water supply conduits 162 is connected to a vibrating node nozzle valve 163 to regulate hydraulic vibration, and another water supply conduit extends to the conveyor 10 and another water supply conduit is connected to the crusher 6. Hopper 16. Alternatively, the water supply conduit 162 may extend to the hopper 13, the return conveyor 14, and the carry-out conveyor 54 of the vibrating sieve 7 to spray and spray water.

The water supply conduit 162 has a valve 165 for adjusting the amount of water supplied from the injection pump 161 or stopping the supply immediately before each injection nozzle. The injection nozzle 164 provided in the water supply conduit 162 extending to the conveyor 10 is provided at least inside the dust cover 120, and the number and arrangement thereof can be set as appropriate. It is most effective to dispose it between the first dust scattering prevention wall 130. The injection nozzle 164 can be provided also on the upper part of the conveyor 10. Water sprayed from the spray nozzle 164 provided inside the dust cover 120 becomes water droplets, adheres to the dust scattered in the dust cover 120, and suppresses the scattering of the dust. The water supply pipe extending to the hopper 16 of the crusher 6 is connected to an injection pipe 166 placed parallel to the upper side of the hopper 16 as shown in FIG.
At both ends, both ends are sealed by plugs, and injection nozzles 167 are formed at predetermined intervals in the longitudinal direction of the tube. The water sprayed from the spray nozzle 167 becomes water droplets, and adheres to the dust scattered in the hopper 16 from the input lump or the crushed material returned from the return conveyor 14 to the crusher 6, thereby suppressing the scattering of the dust. I do.

Each of the injection nozzles can have various structures. For example, the injection nozzle 167
As shown in FIG. 3, the injection hole is formed by drilling an injection hole toward the inside of the hopper 16. Not limited to this, for example, the injection nozzle as a part, the end of the water supply conduit,
A well-known connection means such as screwing may be attached to the bore of the injection pipe.

The details of the conveyor 10, the vibrating sieve 7, the return conveyor 14, and the like in the plant vehicle capable of traveling on the road can be configured in the same manner as the invention disclosed in the above-mentioned prior application by the present applicant. The details will be described below.

When the crusher 6 is operated, considerable vibration is generated in the crusher 6 itself and propagates to various parts of the crushing plant vehicle.
Although this vibration propagates to the conveyor 10, the lower half of the conveyor 10 is only supported in a cantilever manner when viewed from the vehicle body frame 4, so that the vibration tends to increase toward the lower end. When the conveyor 10 vibrates, the crushed material being conveyed falls from the conveyor belt 20, and the dust contained in the crushed material soars. In order to prevent such inconvenience, as shown in FIGS. 11 and 12,
The conveyor of the conveyor 10 and the lower end of the gantry 110 are connected to the body frame 4 by a turnbuckle 170 as a connecting member.
It is connected to. In these drawings, for simplicity, parts other than necessary parts are omitted. The turnbuckle 170 is a hook 171 to the conveyor base 110.
In addition, since the hook 172 is engaged with the body frame 4 on the outside of the vehicle with respect to the hook 171,
The turnbuckle 170 supports the conveyor base 110 in a slightly oblique state, rather than directly above. Therefore, the turnbuckle 170 can suppress the vertical vibration of the transport conveyor 10 as well as the horizontal vibration. Further, as will be described later, the lower end side of the conveyor 10 is a moving frame portion 23 which moves with respect to the fixed frame portion 21 on the upper end side.
By operating the screw part of the turnbuckle 170, the hook 171 when the moving frame part 23 is moved is provided.
The change in the distance between the hook and the hook 172 can be absorbed.

The moving frame 23 is fixed to the fixed frame 21
By moving the conveyor 10 upward, the conveyor 10 can be contracted and moved in the longitudinal direction. The roller shaft 24 and the tail belt roller 27 arranged at the lower part of the conveyor 10, that is, at the lower end of the conveyor 10, are moved upward, so that the crushing plant vehicle capable of traveling on the road travels on the road at the minimum specified in the safety standards. Ground clearance is secured. Even if the conveyor belt 20 is slightly slackened,
It is not impossible to run by colliding with an obstacle on the road.
In some cases, the conveyor belt 20 may be suspended by a rope or the like when the crushing plant vehicle travels.

As shown in FIG. 13, an operating mechanism 33 for extending and retracting the conveyor 10 comprises a pair of bevel gears 36, 37,
It is composed of a handle 34, a ball screw 31, a screw rod 32 and the like. The moving frame portion 23 includes a roller shaft 24 on which the tail belt roller 27 is loosely fitted, a pair of moving frames 23a, 23a, and a horizontal frame 25. Two columns 3 spanned between the moving frames 23a, 23a
A sliding cylinder having a female screw, that is, a ball screw 31 is sandwiched between 0 and 30. The fixed frame 2 has a U-shaped cross section.
1a and 21a are slidably fitted. Fixed frame 2
1a, a handle 3 is provided at the tip of the handle shaft 35.
4 are provided. The bevel gear 36 fixed to the tip of the handle shaft 35 and the bevel gear 37 fixed to the tip of the screw rod 32 screwed to the ball screw 31 are in mesh with each other. The screw rod 32 to which the bevel gear 37 is fixed so as to rotate integrally is supported on the support 22 of the fixed frame 21 in a state where the movement in the axial direction is regulated so as to be freely rotatable. It is screwed into the provided ball screw 31,
A nut 32a is screwed into the tip of the screw rod 32,
The column 30 is fixed in the longitudinal direction.

By operating the operating mechanism 33, the conveyor 10
In order to expand and contract, the screw rod 32 is rotated through the bevel gears 36 and 37 by rotating the handle 34. The rotation of the screw rod 32 causes the ball screw 31 to move on the screw rod 32, and causes the moving frame 23 to move on the fixed frame 21 as indicated by the arrow S through the holding rod 30. When the moving frame 23 moves, the tail belt roller 27 attached to the moving frame 23 moves, whereby the conveyor 10 can expand and contract.

Another operating mechanism for extending and retracting the conveyor 10 is shown in FIG. According to this example, the hydraulic cylinder mechanism 174 is provided between the fixed frame 21 and the movable frame 23. That is, the base end of the cylinder 175 of the hydraulic cylinder mechanism 174 is connected to the horizontal support 22 of the fixed frame portion 21 so as to be allowed to rotate by the pin 176, and the tip of the piston rod 177 of the hydraulic cylinder mechanism 174. Is connected to the horizontal support 30 of the moving frame unit 23 by a pin 178 so that rotation is allowed. Cylinder 17
The other end of 5 and the periphery of the piston rod 177 are protected by a bellows boot 179 against entry of dust and the like.
When the piston rod 177 is pushed or pulled back by the operation of the hydraulic cylinder mechanism 174, the moving frame 23 moves as shown by the arrow T. Then, the tail belt roller 27 attached to the moving frame portion 23 moves, whereby the conveyor 10 expands and contracts.

As shown in FIG. 15, the vibration sieving machine 7 is provided with a vibration damping member (not shown) made of rubber or the like.
A frame 39 is attached to the leg 38, and a sieve 40 provided via a spring or the like is attached to the frame 39. The crushed material sent from the conveyor 10 is supplied to the sieve 40 through the hopper 13. The sieve 40 is a hopper 13
The discharge port 15 is formed at a lower end of the lower end of the vehicle, which is installed so that the inlet side of the vehicle is higher and inclined downward in the width direction of the vehicle. Accordingly, the crushed material is sorted by the sieve 40 as the vibration proceeds from the high area of the sieve 40 to the discharge part 15 on the lower side, and
The crushed material crushed to a predetermined size or less passes through the sieve 40 and falls, and the crushed material larger than a predetermined size proceeds to the discharge unit 15 of the sieve 40. The crushed material that has dropped after passing through the sieve 40 falls through the hopper 41 to the unloading conveyor 54, and is discharged by the unloading conveyor 54 to the unloading chute 75, and then,
It is carried out to a predetermined place by a conveyor 76 or the like provided outside the crushing plant vehicle.

The unloading conveyor 54 can slide in the width direction of the vehicle body frame 4. When discharging the crushed material from the vibrating sieve 7, as shown by the arrow U in FIG. 15, the conveyor 54 is slid so that one side protrudes outside the body frame 4, and one side is connected to the discharge chute 75. And the crushed material can be discharged. The unloading chute 75 attached to the outside of the body frame 4 is removed when the vehicle is running.

Further, in this crushing plant vehicle capable of traveling on the road, the hopper 1 of the crusher
A return conveyor 14 is provided which extends between the return conveyor 14 and the upper part of the conveyor 6. The return conveyor 14 has a function of receiving the crushed material having a size equal to or larger than a predetermined value that cannot pass through the sieve 40 at the discharge unit 15 and returning the crushed material to the crusher 6 again. In order to change the height of the top side of the return conveyor 14 into which the crushed material is introduced into the hopper 16 of the crusher 6, the return conveyor 1 as shown in FIG. 16 or FIG. 17 and FIG.
4 is provided with an inclination changing device 42 for changing the inclination angle.

The ground height of the upper edge of the hopper 16 of the crusher 6 is set to a height that conforms to the safety standards when the vehicle runs on the road, and is set so as to obtain the maximum allowable processing capacity. Have been. When the return conveyor 14 is operated, the crushed material is put into the hopper 16 so that the return conveyor 14 rises from the upper edge of the hopper 16 as shown by a two-dot chain line. At a high position, the vehicle cannot travel on the road. Therefore, the notch 18 is formed in the hopper 16 so that the upper portion of the return conveyor 14 is located below the upper edge of the hopper 16 when traveling on the road.
(FIG. 1) is formed. Therefore, when the crushing plant is in operation, the closing plate 1 having a size larger than the notch 18 engaged with the upper edge of the hopper 16 is required to close the notch 18.
8a is preferably prepared separately. In some cases, the hopper 16 may be detached from the crusher 6 and the upper portion of the return conveyor 14 may be lowered to meet security standards.

The tilt changing device 42 shown in FIG. 16 has a column mechanism 43 and a lifting mechanism 44. The support mechanism 43 includes, for example, a pair of fixed rods 48 and an elevating rod 46 that can move up and down with respect to the fixed rods 48. The lifting rod 46 is a horizontal rod 47 in the middle.
The upper part thereof is attached to a mounting portion 79 provided on the left and right frames 73 of the return conveyor 14 by mounting brackets 4 such as pins.
It is pivotally connected via 5,45. Each fixed rod 48 is connected by a crossbar 70, and the crossbar 7
0 is provided with a lifting mechanism 44. The lifting mechanism 44 includes a rotating shaft 50 rotatably mounted on a bracket 71 provided on a cross bar 70 and rotatable by a handle 49, a bevel gear 51 fixed to an end of the rotating shaft 50 so as to be integrally rotatable, A bevel gear 52 that meshes with the bevel gear 51 and a screw rod 53 that moves up and down through the bevel gear 52 are provided. A bevel gear 52 having a female screw 72 formed at the shaft center is rotatably attached to the crossbar 70. Further, the bevel gear 52 has a lifting rod 4
Lifting screw rod 53 fixed to a horizontal rod 47 fixing the rod 6
Is screwed.

Since the conveyor inclination changing device 42 has the above configuration, when the handle 49 is rotated, the rotating shaft 50 and the bevel gear 51 rotate, and then the bevel gear 52 meshing with the bevel gear 51 rotates. I do. The rotation of the bevel gear 52
The lifting screw 53 is moved up and down. If the lifting screw 53 moves up and down, an arrow V in FIG.
As shown by the arrow, the lifting rod 46 moves up and down with respect to the fixed rod 48, so that the inclination angle of the return conveyor 14 is changed, and the height of the upper portion of the return conveyor 14 can be reduced.

The tilt changing device 18 shown in FIGS. 17 and 18
Numeral 0 has a column mechanism 181 and a lifting mechanism 182. The support mechanism 181 includes, for example, a pair of fixed rods 183 and an elevating rod 185 that can move up and down with respect to the fixed rods 183. The lifting rod 185 has an upper end connected by a horizontal rod 186, and an upper part of the lifting rod 185 is attached to a mounting portion 188 provided on the left and right frames 73 of the return conveyor 14 by a mounting bracket 18 such as a pin.
7,187. Each fixed rod 18
3 are connected by a crossbar 184, and the crossbar 184 is provided with an elevating mechanism 182. The elevating mechanism 182 includes a fixed rod 183 having a cylinder 189 having a base end connected to a crossbar 184, and a cylinder 18.
9 is a hydraulic cylinder composed of a piston rod 190 which can reciprocate within the cylinder 9, and the tip of the piston rod 190 is connected to a horizontal rod 186 of a lifting rod 185. The bellows boot 191 covers the periphery of the piston rod 190 and the tip side of the cylinder 189, and protects it from dust generated during operation of the crushing plant. By operating the hydraulic cylinder and adjusting the amount of extension of the piston rod 190 as shown by the arrow W, the inclination angle of the return conveyor 14 can be changed.

Further, as shown in FIG. 19, the crushing plant vehicle capable of traveling on the road has a structure in which doors at least on both sides of the periphery of the body frame 4, that is, the tilt plate 60 can be used as a work platform. I have. A plurality of mounting brackets 61 such as U-shaped non-circular metal brackets as viewed in a horizontal cross section are attached to a plurality of mounting brackets 61 spaced apart from each other in the longitudinal direction outer wall surface of the vehicle body frame 4. Hardware 62
Are configured to be detachably mounted. Mounting bracket 61
When the tiltable tilt plate 60 provided on the vehicle body frame 4 is tilted down as shown by a chain line with the L-shaped bracket 62 attached, the tilt plate 60 is held in a horizontal state.
The tilt plate 60 can be used as a scaffold.
As shown in FIG. 20, the combination of the L-shaped fitting and the mounting fitting is the same as that of the L-shaped fitting 6 except that a rib 63 is provided inside.
The mounting bracket 61a may be the same as the mounting bracket 61 except that the same L-shaped bracket 62a and the slit 64 for the rib are formed. Further, a lateral hole (not shown) may be formed in the body frame 4 around the loading platform, and a bar-like support (not shown) may be fitted into the lateral hole to support the tilt plate 60 horizontally. . As described above, when the scaffold is formed at the crushing work site, necessary L-shaped fittings are separately attached to the body frame 4, so that the dimensions of the L-shaped fittings may be taken into consideration when traveling on the road. As a result, the width of the vehicle can be sufficiently secured while satisfying security standards.

In the above embodiment, the crushing plant vehicle capable of traveling on the road is provided with the telescopic mechanism 3 of the conveyor 10.
3,174 and the lifting mechanism 44,18 of the return conveyor 14
Although one embodiment has been described for the second embodiment, these mechanisms are not limited to the above-described embodiment, and can be configured using a device such as a winch. In the above embodiment, the tail belt roller 2 of the conveyor 10 is used.
In order to secure the minimum ground clearance specified in the safety standards, the lower part of the conveyor 10 is made to expand and contract in the longitudinal direction, but the entire conveyor 10 is extended in the longitudinal direction of the conveyor 10. May be slid. Depending on the size of the vibrating sieve 7, the upper end of the conveyor 10 may exceed the height specified in the security standards. In this case, the upper part of the conveyor 10 may be divided and folded. Good. This means can also be used for height control of the return conveyor 14. The dividing technology of the conveyor 10 can also be used as a measure for lifting the lower part of the conveyor 10.

[0046]

Since the crushing plant vehicle capable of traveling on the road according to the present invention is constructed as described above, dust or crushed material which starts to scatter directly from the crushed material outlet of the crusher to the crushed material outlet is discharged from the crushed material outlet. Dust generated by the impact of falling on the conveyor is prevented from scattering to the outside by the dust-proof cover, so that dust generated by the operation of the crusher can protect the health of workers and residents and the surrounding environment. The effect on the environment and other equipment related to the crushing plant can be reduced. When the crushing plant vehicle capable of traveling on the road is provided with a flexible dust scattering prevention wall at least at a front end of the dustproof cover viewed in the conveying direction of the conveyor, a crushed material outlet of the crusher is provided. Dust that begins to fly directly to the surroundings and dust that has fluttered due to the impact of the crushed material falling onto the conveyor from the crushed material outlet can also be scattered to the outside by the dust scattering prevention walls at the front and rear of the dust cover. Therefore, the scattering of dust generated during operation of the crushing plant vehicle can be more reliably prevented. Therefore,
The effect of dust generated by the operation of the crusher on the health of workers and residents, the surrounding environment, and other equipment related to the crushing plant can be almost completely suppressed. Also, since the dust scattering prevention wall is flexible, even if the crushed material placed on the conveyor is temporarily brought into contact with the dust scattering prevention wall, the crushed material is pushed away from the dust scattering prevention wall. Transported to

When the crushing plant vehicle capable of traveling on the road is provided with an injection nozzle for injecting water for preventing scattering of dust, at least in the dustproof cover on the transfer conveyor, the crushing plant vehicle may be formed of a lump. When the dust generated in the crushing process is scattered, the floating dust and water droplets adhere to each other, increase the weight and fall without being able to completely float, and water droplets also adhere to the dust that is going to fly up from the conveyor. It is possible to enhance the effect of preventing scattering such as not scattering.

When the crushing plant vehicle capable of traveling on the road is a vehicle in which the lower side of the conveyor is covered with another dust cover, the scattered dust falls downward from between the conveyor and the dust cover. Even if it attempts to scatter, it is blocked by a dust cover that covers the lower side of the conveyor,
There is no scattering to the outside air. If the dustproof cover is provided with an injection nozzle for injecting water for preventing dust scattering, it receives fallen sewage, which facilitates handling of the sewage. Further, when the crushing plant vehicle travels on the road, the conveyor belt of the transport conveyor can be protected from pebbles and the like that the tires repel.

The conveyor for conveying the crushed material discharged from the crusher to the vibrating sieve has a telescopic structure so that the bottom can be raised to increase the ground height. When operating the crushing plant, the bottom of the conveyor is lowered to lower the ground level to a position where the crushed material discharged from the crusher can be received, and the crushed material is transferred to the vibrating sieve. In addition, when the crushing plant is not operating, the bottom of the conveyor can be raised to increase the ground height until the crushing plant vehicle meets the safety standards of the Road Transport Vehicle Act that can travel on the road. Therefore, even if the size of the crusher is increased, it is possible to design a crushing plant vehicle having a large crushing capacity without any trouble in traveling on the road.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of a crushing plant vehicle capable of traveling on a road according to the present invention.

FIG. 2 is a plan view of the crushing plant vehicle of FIG.

FIG. 3 is a rear view of the crushing plant vehicle of FIG.

FIG. 4 is a side view showing a lower portion of a crusher and a lower portion of a conveyor in the crushing plant vehicle of FIG.

5 is a cross-sectional view taken along the line AA in FIG. 1, and is a cross-sectional view of the transport conveyor and the dustproof cover on a plane perpendicular to the transport direction of the transport conveyor in the crushing plant vehicle.

FIG. 6 is a cross-sectional view taken along the line BB in FIG. 5, showing the attachment of the dust scattering prevention wall to the dustproof cover.

7 is a cross-sectional view taken along the line CC in FIG. 4, which is a cross-sectional view of a plane perpendicular to the conveyance direction of a conveyance start end of the conveyance conveyor.

8 is a diagram of a water injection system for preventing dust scattering in the crushing plant vehicle of FIG. 1.

9 is a view showing a water injection pipe provided for a hopper of a crusher in the water injection system of FIG. 8;

10 is a sectional view taken along line DD of FIG. 9 and is a sectional view of an injection nozzle in the water injection mechanism.

FIG. 11 is a side view showing an embodiment of a vibration stopper at the lower end of the transport conveyor.

FIG. 12 is a rear view of the vibration stopper shown in FIG. 11;

13 is a plan view showing an example of a telescopic mechanism of a transport conveyor in the crushing plant vehicle of FIG.

FIG. 14 is a plan view showing another example of a telescopic mechanism of the transport conveyor in the crushing plant vehicle of FIG.

FIG. 15 is a front view showing one embodiment of a discharge unit of the vibrating sieve in the crushing plant vehicle of FIG. 1;

FIG. 16 is a front view showing an example of an elevating mechanism of a return conveyor in the crushing plant vehicle of FIG.

FIG. 17 is a front view showing another example of the elevating mechanism of the return conveyor in the crushing plant vehicle of FIG. 1.

18 is a side view of an elevating mechanism of the return conveyor shown in FIG.

19 is a cross-sectional view illustrating an example of a horizontal support portion of a tilt plate of a body frame in the crushing plant vehicle of FIG.

FIG. 20 is a perspective view showing another embodiment of the horizontal support bracket of the tilt plate.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tractor 2 Trailer 3 Rear wheel 4 Body frame 5 Front outrigger 6 Crusher 7 Vibrating sieve machine 8 Generator 9 Operation panel 10 Transport conveyor 13 Hopper 14 Return conveyor 21 Fixed frame part 23 Moving frame part 40 Screen 42 Conveyor inclination change device 54 Discharge Conveyor 60 Tilt Plate 76 Discharge Conveyor 120 Dustproof Cover 130 Dust Splash Prevention Wall 141 Duct 150 Conveyor Bottom Cover (Dustproof Cover) 160 Water Injection System 164,167 Injection Nozzle

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A 5-22042 (JP, U) JP-A 55-172210 (JP, U) JP-A 59-15634 (JP, U) JP-A 63- 63182 (JP, U) Japanese Utility Model Application No. 58-40262 (JP, U) Japanese Utility Model Application No. 58-60626 (JP, U) Japanese Utility Model Application No. 3-130859 (JP, U) European Patent Application Publication 382922 (EP, A1) (58) Field surveyed (Int. Cl. ⁷ , DB name) B02C 21/02

Claims (5)

(57) [Claims] 1. An air cushion and a leaf spring are attached to a tire.
Tire on a body frame of a vehicle supported and supported
A crusher was installed near the rear wheel to crush the lump.
On-road crushing plant vehicles equipped with engines
And installed at the front part on the body frame and with the crusher
A vibrating sieve for selecting the crushed material obtained by crushing the mass, and a vibrating sieve disposed on the vehicle body frame for transferring the crushed material crushed by the crusher from the crusher to the vibrating sieve;
From the discharge chute at the bottom of the crusher
<br/> conveyor extending directly in one direction inclined to the hopper upwards, on the body frame for crushing the crushed predetermined size greater than that selected by the vibration sieve machine again
From the discharge portion of the installed and the vibrating screen machine of the crusher
Incline upward to the lump hopper
Conveyor back extending extract, crushed material discharge means and out discharge the crushed sorted at <br/> constant following size by the vibration sieve machine, and direct in one direction from the discharge position of the crusher
A dust cover that covers the transfer path of the transfer conveyor over a predetermined range in the transfer direction extending to the tire.
The crusher, the vibrating sieve, and the transfer
A conveyor, the return conveyor and the crushed material discharging means.
Drive, at least the impact force generated by the crusher and
Vibrating the air cushion, the leaf spring and the tire;
A crushing plant vehicle capable of traveling on the road, characterized in that it is buffered by a shock absorber . 2. A dust protection wall is provided at least at a front end of the dust-proof cover as viewed in the transport direction of the transport conveyor, and a lower side of the transport conveyor is covered with another dust-proof cover.
The crushing plant vehicle capable of traveling on a road according to claim 1, wherein: 3. A driving device comprising a power source and an operation panel for driving the crusher, the vibrating sieving machine, the transport conveyor and the return conveyor, and a dust collector installed on the vehicle body frame; The crushing plant vehicle capable of traveling on a road according to claim 1 or 2, wherein a dust collection duct of the dust collector is connected inside the dustproof cover. Wherein the front Symbol dust cover on said conveyor
And a hopper for feeding the lump to the crusher is provided with a water injection nozzle for injecting water for preventing scattering of dust, and is capable of running on a road according to any one of claims 1 to 3. Crushing plant car. 5. The conveyer for conveying the crushed material discharged from the crusher to the vibrating sieving machine is configured to have a telescopic structure so that the bottom can be raised to increase the ground height. The crushing plant vehicle capable of traveling on a road according to any one of claims 1 to 4 .