JP3761045B2 - Mobile crusher with two-axis shear type crusher - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mobile crusher equipped with a biaxial shear type crusher that crushes building debris or the like at a building demolition site or the like.
[0002]
[Prior art]
2. Description of the Related Art In recent years, mobile crushers equipped with a crusher for crushing building debris, wastes, and the like are used in demolition sites of buildings and the like. The crusher includes a jaw crusher and a biaxial shear type roll crusher. As a mobile crusher equipped with a biaxial shearing type crusher, for example, there are those proposed in Japanese Patent Application Laid-Open Nos. 7-178346 and 6-277555.
[0003]
Japanese Patent Application Laid-Open No. 7-178346 proposes a crusher having a pair of rotating shafts arranged in parallel to a housing on a vehicle body having left and right traveling bodies, with the rotation shaft being horizontal and directed in the longitudinal direction of the vehicle body. A hopper is attached to the upper surface of the housing, and a belt conveyor for discharging crushed material is attached between the left and right traveling bodies. At the time of work, the object to be crushed is put into the hopper from the side of the vehicle body by a loading machine such as a hydraulic excavator, crushed by a crusher, and then discharged to the outside by a belt conveyor.
[0004]
Japanese Patent Laid-Open No. Hei 6-277555 has a shredder mounted on a traveling vehicle body so that a pair of rotating shafts are parallel to the longitudinal direction of the vehicle body, and can be turned up and down on the upper edge of the shredder. A hopper is provided, and a belt conveyor is mounted below the shredder discharge port. When working, waste is thrown in from the side of the vehicle body with a hydraulic excavator, etc. At that time, the hopper is opened to the left and right, the hopper opening area is increased and the loading height is lowered, and even a small loading machine can be loaded easily. I am doing so. In addition, the amount of waste supplied to the shredder can be controlled by turning the hopper up and down after the waste is charged. Further, when it is necessary to prevent scattering, the hopper can be rotated upward to close the hopper upper surface.
[0005]
However, a large amount of earth and sand may be mixed when to-be-crushed objects and waste. In such a case, in each of the above-described configurations, the cutter is rapidly worn, and the crusher body is also damaged. As a countermeasure, there is a method in which a vibration feeder with grizzle (so-called grizzly feeder) is arranged in front of the hopper, and the material to be crushed and waste is subjected to a vibration sieve in advance to remove earth and sand.
[0006]
FIG. 9 is a side view showing a mobile crusher in which a vibration feeder with a grizzle is provided on one of the hoppers of a biaxial shear crusher mounted on a conventional mobile crusher, and FIG. 10 is a plan view thereof. The vehicle body 1 is equipped with a biaxial shearing crusher 50 having shafts arranged in parallel in the longitudinal direction, and a hopper 51 is provided on the top thereof. On one side of the hopper 51 in the longitudinal direction, a vibration feeder 52 with grind is attached with an inclination of an angle θ. The biaxial shearing crusher 50 rotates in the direction of the black arrow shown in FIG. The waste is put into the grizzled vibratory feeder 52 and shaken off the earth and sand, and then thrown into the hopper 51 as indicated by the white arrows in FIGS. 9 and 10 and crushed by the biaxial shear crusher 50.
[0007]
FIG. 11 is a plan view of a conventional biaxial shearing crusher 50. A shaft 60 having a rotating tooth 61 and a shaft 63 are supported in parallel on the housing 60, and both ends are supported by bearings 64. FIG. A gear 65 is fixed to one end of the shaft 62, and a gear 66 is fixed to one end of the shaft 63 and meshes with each other. The gear 65 and the gear 66 are installed in a gear box 67 provided at one end of the housing 60 and are oil-lubricated. A motor 68 is attached to the shaft end of the shaft 62 to drive the shafts 62 and 63.
[0008]
[Problems to be solved by the invention]
However, the above configuration has the following problems.
(1) Many wastes sent from the vibration feeder 52 with grizzle fall to the vibration feeder 52 side with grizzle of the biaxial shear crusher 50. For this reason, a severe load is applied only to the rotating tooth 61 on the vibration feeder 52 side with the scouring, and the wear is promoted at an early stage and the life is shortened.
(2) Since the flow of waste from the vibratory vibrator 52 and the rotational direction of the rotating teeth 61 are orthogonal, it is difficult to bite when flat objects such as tatami are crushed. Easy to do.
(3) At the time of crushing, if light and soft materials such as plastic that can be crushed in a short period of time are supplied at high speed, if large objects are hard and time-consuming to crush, it can be supplied at low speed to achieve high efficiency work. Regardless, since the inclination angle θ of the vibration feeder with grizzle 52 is constant, it is impossible to adjust the falling speed of the waste according to the product type. Therefore, it is difficult to achieve the high efficiency work.
(4) When the rotating tooth 61 is worn and replaced, the motor 68, the bearing 64 and the biaxial shearing crusher 50 are removed from the gear box 67 as a single unit, and the rotating tooth 61 is sequentially removed and replaced in the vertical direction. Work is necessary. However, since these are heavy objects, the vertical operation must be carefully performed. Moreover, since it is heavy, careful work is required to prevent damage to the seal member of the gear box 67 when it is detached from the vehicle body. In other words, it takes a lot of time to work.
[0009]
The present invention has been made paying attention to the above-mentioned problems, and wear of the rotating teeth of the biaxial shearing type crusher becomes uniform and the service life becomes long, and it is scattered when crushing plate-like waste such as tatami mats. It is an object of the present invention to provide a mobile crusher equipped with a two-shaft shear type crusher that can efficiently perform crushing work without being done, and can easily perform replacement work at the time of rotating tooth wear in a short time. .
[0010]
[Means, actions and effects for solving the problems]
In order to achieve the above object, the first of the two-axis shear crusher-mounted mobile crusher according to the present invention is mounted on a vehicle body having a pair of left and right traveling bodies at the bottom, and substantially at the center of the vehicle body, A biaxial shear type crusher in which a pair of rotary shafts having rotating teeth in the housing are arranged in parallel so as to coincide with the left-right direction of the vehicle body; a hopper provided in the biaxial shear type crusher; A discharge belt conveyor provided between a pair of left and right traveling bodies below the axial shearing type crusher and having a discharge port located on one side in the traveling direction of the vehicle body, and a power source disposed on one side in the traveling direction of the vehicle body And a vibration feeder with a grind that is disposed on the other side in the traveling direction of the vehicle body, is pivotally attached to the vehicle body so as to be swingable in the vertical direction, and is connected to the other vehicle body by a hydraulic cylinder. The bottom of the discharge port of the vibratory feeder with grizzle is to the ground It is formed in a U-shape so as to be released, and the grizzled vibration feeder is configured such that the end of the vehicle body center side enters the inside of the hopper in a plan view even when the hydraulic cylinder expands and contracts, The width of the vibratory feeder with grizzle and the width of the shaft of the biaxial shear crusher are made substantially the same.
[0011]
According to the said 1st structure, the earth and sand etc. which were isolate | separated from the to- be-crushed object with the vibration feeder with a grizzle pass between U-shape without falling on a vehicle body, and fall on the belt conveyor provided in the ground or the downward direction since it is possible to deposit, it is possible to prevent contamination of the soil or the like into the biaxial shearing-type crusher. In addition, since the axis of the rotating shaft of the biaxial shearing type crusher is set in the left-right direction of the vehicle body, the object to be crushed is moved from the tip metal fitting of the vibration feeder with grizzly to the biting direction of the rotating tooth over the entire length of the rotating shaft. It is evenly turned toward. Therefore, the wear of the rotating teeth provided on the rotating shaft of the biaxial shearing crusher can be equalized, and the replacement frequency of the rotating teeth can be reduced. Furthermore, even when plate-like waste such as tatami mats is thrown in, the biting into the rotating teeth is good and the dust does not scatter.
Further, the balance in the longitudinal direction of the vehicle becomes good, so that the object to be crushed can be input from one side and discharged from the other side. For this reason, arrangement | positioning and operation | work of a to-be-crushed material loader and a crushed material transport vehicle are specified back and forth, and workability | operativity improves.
In addition, the hydraulic cylinder that engages the vehicle body and the vibration feeder with grizzle can be expanded and contracted to increase the inclination angle of the vibration feeder with grizzle and increase the speed of the one that is light and soft, such as plastic. On the other hand, those which are large and hard and require time for crushing can be supplied to the crusher at low speed by reducing the inclination angle of the vibratory feeder with grizzly, which can improve work efficiency .
[0012]
Further, according to the second configuration, in the biaxial shear crusher-mounted mobile crusher in the first configuration, the pair of parallel rotating shafts of the biaxial shear crusher is rotationally driven by independent motors. The motor is disposed at the ends of the rotating shafts on different sides, and both end bearings of the pair of rotating shafts are detachably attached to the housing by means of mounting members that are divided into upper and lower parts.
[0013]
As a result, by removing the mounting member, the rotating shaft can be taken out of the housing integrally with the motor, and disassembly and maintenance can be greatly improved, so that the cutter can be replaced safely and easily in a short time.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of a mobile crusher equipped with a biaxial shearing crusher according to the present invention will be described below in detail with reference to the drawings.
[0019]
FIG. 1 is a side view of a first embodiment of a mobile crusher equipped with a biaxial shearing crusher, and FIG. 2 is a plan view. A biaxial shear type crusher 10 is mounted at a substantially central portion of a vehicle body 1 having a pair of left and right traveling bodies 2 and 2 at a lower portion, and a hopper 11 is provided at an upper portion thereof. A pair of shafts 13 and shafts 14 having rotating teeth 12 of the biaxial shearing crusher 10 are arranged in parallel in the left-right direction of the vehicle. One end of the hopper 11 in the longitudinal direction of the vehicle body 1 is attached to one end of a vibration feeder 3 with a grind that is a sieve so as to be swingable in the vertical direction by a pin 4, and the other end is connected to the vehicle body 1 by a hydraulic cylinder 5. Yes. The vibration feeder 3 with grinds swings up and down around the pin 4 by expanding and contracting the hydraulic cylinder 5.
[0020]
The other side of the hopper 11 in the longitudinal direction of the vehicle body 1 is provided with an engine room 6 in which a power source such as an engine, a hydraulic pump, a hydraulic valve, etc. is housed, and the vehicle body 1 has a good balance in the front-rear direction. Below the biaxial shearing crusher 10, a belt conveyor 20 is disposed between a pair of left and right traveling bodies 2, 2 provided at the lower part of the vehicle body 1, and a discharge end 21 of the belt conveyor 20 extends in the longitudinal direction of the vehicle body 1. It is located on the opposite side of the attached vibration feeder 3. Accordingly, waste or the like can be loaded into one of the vibration feeders 3 with a crisp in the longitudinal direction of the vehicle body 1 by a loader, and loaded into the crushed material transporter from the discharge port 21 of the other belt conveyor 20, so that the operation is easy.
[0021]
FIG. 3 is a plan view of the vehicle body 1 taken along the line AA in FIG. As shown in the figure, the lower part of the vibration feeder 3 with grind of the vehicle body 1 is formed in a U shape.
[0022]
FIG. 4 is an operation explanatory view of the biaxial shearing crusher 10. Since the earth and sand separated from the object to be crushed by the vibration feeder with grizzle can be dropped and deposited on the belt conveyor provided on the ground or below through the U shape without being applied to the vehicle body. Mixing of earth and sand into the shaft shearing type crusher can be prevented.
[0023]
As shown in FIG. 2, the width of the vibration feeder 3 with the creasing and the widths of the shafts 13 and 14 of the biaxial shear crusher 10 are substantially the same. For this reason, the waste thrown into the hopper 11 from the vibration feeder 3 with a grizzle is equally distributed over the entire width of the shafts 13 and 14 of the biaxial shear crusher 10. Therefore, only the specific rotating tooth 12 is not worn early, and the wear life of the rotating tooth 12 is extended.
In addition, since the axis of the rotating shaft of the biaxial shearing type crusher is set in the left-right direction of the vehicle body, the object to be crushed is moved from the tip metal fitting of the vibration feeder with grizzly to the biting direction of the rotating tooth over the entire length of the rotating shaft. It is thrown in evenly. Therefore, the wear of the rotating teeth provided on the rotating shaft of the biaxial shearing crusher can be equalized, and the replacement frequency of the rotating teeth can be reduced. Furthermore, even when plate-like waste such as tatami mats is thrown in, the biting into the rotating teeth is good and the dust does not scatter.
Further, the balance in the longitudinal direction of the vehicle becomes good, so that the object to be crushed can be input from one side and discharged from the other side. For this reason, arrangement | positioning and operation | work of a to-be-crushed material loader and a crushed material transport vehicle are specified back and forth, and workability | operativity improves.
[0024]
In FIG. 4, the vibration feeder 3 with a crease swings around the pin 4 by expanding and contracting the hydraulic cylinder 5, and the inclination angle θ can be adjusted. Therefore, when throwing in waste that is light and soft, such as plastic, and can be crushed in a short time, the hydraulic cylinder 5 is extended to increase the inclination angle θ of the vibration feeder 3 with a crease, and the throwing speed of waste is increased. It can be increased to increase the input amount. On the other hand, when throwing in waste that is large and hard and requires a long time for crushing, the hydraulic cylinder 5 can be shortened to reduce the inclination angle θ, and the throwing speed can be reduced to reduce the throwing amount. . Thereby, the crushing work can be performed efficiently.
[0025]
The crushed material 23 crushed by the rotating teeth 12 is discharged to the outside by the belt conveyor 20.
[0026]
FIG. 5 is a plan view of the first embodiment of the biaxial shear crusher 10. A motor 15 is attached to one end of the shaft 13 having the rotating teeth 12, while a motor 16 is attached to one end of the shaft 14. The shaft 13 and the shaft 14 are disposed so that the positions of the motor 15 and the motor 16 are opposite to each other, and are accommodated in the housing 30.
[0027]
FIG. 6 is a view taken along the line B-B in FIG. 5, and shows how the shaft 13 and the shaft 14 are attached to the housing 30. In FIGS. 5 and 6, the bearings 17 and 18 attached to both ends of the shafts 13 and 14 are fastened to the housing 30 by the half mounting members 31 and fastened by bolts 32. Therefore, when the biaxial shearing crusher 10 is detached from the vehicle body 1 and disassembled, the bolts 32 are removed and the attachment member 31 is removed to disassemble the shaft 13 to which the motor 15 is attached and the shaft to which the motor 16 is attached. 14 can be removed from the housing 30 in an integrated state. At this time, since the shaft 13 and the shaft 14 are driven independently from each other, each of them is reduced in weight by half, and the operation becomes easy. Further, since there are no gears 65 and 66 as in the prior art, it is not necessary to pay attention to preventing damage to the seal member as in the prior art. That is, it is possible to replace the worn rotating teeth 12 extremely safely, easily, and in a short time.
[0028]
FIG. 7 is a plan view of a second embodiment of the biaxial shear crusher 10a. A shaft 13a having a rotating tooth 12 and a shaft 14a are rotatably attached to the housing 30a via bearings 17a and 18a, respectively. A gear 40 and a gear 41 are fixed to one end of the shafts 13a and 14b and mesh with each other. A gear 42 is fixed to the shaft end of the shaft 13 a and meshes with the drive gear 45 of the motor 44 via the intermediate gear 43. These gears are installed in a gear chamber 33a provided in the housing 30a and are oil-lubricated.
[0029]
FIG. 8 is a side view of a second embodiment of the mobile crusher equipped with a biaxial shearing crusher. The biaxial shear crusher 10a is mounted on one of the vehicle bodies 1a having a pair of traveling bodies 2 and 2, and a hopper 11 is provided on the upper part. The vibration feeder 3 with a grind is attached to one side in the longitudinal direction and outside the vehicle body 1a. Therefore, the earth and sand that has been shaken off is directly deposited on the ground. On the other side in the longitudinal direction of the biaxial shearing crusher 10a, an engine room 6 in which a power source such as an engine is installed is disposed, below the biaxial shearing crusher 10a and a pair of traveling bodies 2, 2 A belt conveyor 20 for discharging is provided between the two. As described above with reference to FIG. 7, the shafts 13a and 14a and the motor 44 of the biaxial shearing crusher 10a are arranged in parallel. For this reason, the length L in the longitudinal direction when the vehicle body 1 is mounted is shorter than the length L1 of the conventional one shown in FIG. 9, and the entire vehicle body 1 can be made compact. Since the operation of the biaxial shearing type crusher is the same as that of the first embodiment, the description thereof is omitted.
[Brief description of the drawings]
FIG. 1 is a side view of a first embodiment of the present invention.
FIG. 2 is a plan view of the same.
FIG. 3 is a plan view showing the vehicle shape under the vibration feeder with grizzle.
FIG. 4 is an explanatory view of an operating state of the biaxial shear type crusher.
FIG. 5 is a plan view of the first embodiment of the biaxial shear crusher.
FIG. 6 is a front view of the same.
FIG. 7 is a plan view of a second embodiment of the biaxial shear crusher.
FIG. 8 is a side view of a second embodiment of the present invention.
FIG. 9 is a configuration diagram of a conventional mobile crusher equipped with a two-shaft shear crusher.
FIG. 10 is a plan view of the same.
FIG. 11 is a plan view of a conventional biaxial shear crusher.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Car body 2 Running body 3 Grinding vibration feeder 4 Pin 5 Hydraulic cylinder 6 Engine room 10, 10a Biaxial shear crusher 11 Hopper 12 Rotating teeth 13, 14 Rotating shafts 15, 16 Motor 17, 18 Bearing 20 Belt conveyor 21 Discharge End 30 Housing 31 Mounting member

Claims (2)

In a mobile crusher with a biaxial shearing crusher,
  A vehicle body with a pair of left and right traveling bodies at the bottom;
  A biaxial shearing crusher that is mounted approximately in the center of the vehicle body and has a pair of rotating shafts having rotating teeth in the housing and arranged in parallel so as to coincide with the left-right direction of the vehicle body;
  A hopper provided in the biaxial shear crusher;
  A discharge belt conveyor provided between a pair of left and right traveling bodies below the biaxial shearing crusher and having a discharge port located on one side in the traveling direction of the vehicle body;
  A power source arranged on one side of the vehicle body traveling direction;
  It is arranged on the other side in the traveling direction of the vehicle body, and is equipped with a vibration feeder with a grind that has one end pivotally attached to the vehicle body so as to be swingable in the vertical direction, and the other end and the vehicle body are connected by a hydraulic cylinder.
  The vehicle body is formed in a U-shape so that the lower part of the discharge port of the vibration feeder with grizzle is opened to the ground,
  The vibration feeder with grizzle is configured such that the end of the vehicle body center side enters the inside of the hopper in plan view even when the hydraulic cylinder expands and contracts,
  The width of the vibratory feeder with grizzle and the width of the shaft of the biaxial shearing crusher were made substantially the same.
  A mobile crusher equipped with a two-axis shearing type crusher. In the mobile crusher mounted on the biaxial shear type crusher according to claim 1,
  A pair of parallel rotating shafts of the biaxial shearing type crusher are driven to rotate by independent motors, respectively.
  The motor is disposed at the ends of the rotating shafts on different sides,
  The bearings on both ends of the pair of rotating shafts are detachably attached to the housing by means of mounting members that are divided into upper and lower parts.
  A mobile crusher equipped with a two-axis shearing type crusher.

Images