JP2015101898A - Asphalt paving machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an asphalt paving machine that can efficiently discharge fume generated inside a mixture hopper to reduce the adverse effect of the fume on an operator.SOLUTION: An asphalt paving machine is provided with a ventilation 17 which comprises: a fume suction duct 19 that has a suction port 19a and an exhaust port 19b, covers a part of an upper surface opening of a mixture hopper 11 at the lower end side having the suction port 19a, and is mounted on the mixture hopper 11 with the exhaust port 19b on the upper end side arranged at an upper part; and a blower 20 that has an exhaust duct 21 with a suction port 22a and a discharge port 22b, an intake port 21a and an exhaust port 21b, and is provided with a fan inside, connects the intake port 21a to the exhaust port 19b of the fume suction duct 19 and is mounted in the fume suction duct 19 with the exhaust port 21b positioned toward the atmosphere.

Description

  The present invention relates to an asphalt pavement machine, and more particularly to an asphalt pavement machine in which harmful fumes (fumes) emanating from an asphalt composite material are provided with measures to reduce the influence on operators operating the pavement machine. is there.

  Conventionally, an asphalt paving machine such as an asphalt finisher has been used to lay an asphalt mixture on a construction base to form a hard road surface.

  Generally, this type of asphalt pavement machine includes a pavement machine main body having an operator station with a driver's seat on the upper rear side, a composite hopper for accommodating a composite material disposed on the front side of the pavement machine main body, A feeder device provided in the main body of the paving machine for conveying the asphalt composite material in the composite material hopper to the rear side of the main body of the paving machine, and an asphalt composite material sent by the feeder device in the main body of the paving machine. A screw that spreads on the construction base (paved surface) on the rear side, and a screed device that averages the asphalt mixture spread by the screw to a predetermined thickness, and the asphalt combination in the composite hopper The material is conveyed onto the screw by the feeder device, and the asphalt mixture is uniformly laid out on the construction base surface with a predetermined paving width by the screw, and then the screed device is used. So that the leveled spread to the thickness of the constant.

  The disadvantage of the asphalt pavement machine using such asphalt mixture is that when the asphalt mixture is heated, the petroleum distillation product contained in the asphalt mixture generates fumes having bad odor and the like. . In particular, in the goose asphalt pavement using the goose asphalt mixture, since it is spread at a higher temperature than the asphalt mixture used for ordinary roads and the like, more smoke is generated than in the case of ordinary asphalt mixture. The fumes also contain nitrogen, sulfur, benzene, and other hydrocarbon materials. Many of these materials can be detrimental to the body of an operator operating an asphalt paving machine that spends a long time in close proximity to the asphalt paving machine. Further, the generated smoke may deteriorate the visibility of workers around the asphalt pavement machine and the visibility of oncoming vehicles, and may cause an accident.

  Therefore, conventionally, a duct that sucks the smoke generated in the composite hopper with the wind pressure of the blower is provided between the front surface of the main body of the paving machine and the composite hopper, and the smoke sucked in by the smoke suction duct is exhausted through the exhaust duct. An asphalt pavement machine provided with a smoke exhaust device for exhaust is known (for example, see Patent Document 1).

JP-T-2001-526751 gazette.

  However, as in the structure of the invention described in Patent Document 1, between the front surface of the pavement machine body and the composite hopper, the smoke generated in the composite hopper is sucked into the duct by the wind pressure of the blower. Since the distance between the asphalt mixture in the hopper and the smoke suction port of the smoke suction duct is largely separated, there is a problem that it is easily affected by the wind and the smoke cannot be captured sufficiently.

  Further, since the suction efficiency is low, a large capacity and expensive fan is required, and the structure becomes complicated. For this reason, there also existed a problem that cost became high.

  Therefore, a technical problem to be solved arises in order to provide an asphalt pavement machine that can efficiently remove the smoke generated in the composite hopper and reduce the effect of the smoke on the operator. The present invention aims to solve this problem.

  The present invention has been proposed in order to achieve the above object, and the invention according to claim 1 is provided on a pavement machine main body provided with an operator station on the rear upper side, and on the front side of the pavement machine main body. In an asphalt pavement machine equipped with a composite hopper, a smoke having a suction port and an exhaust port, the lower end side having the suction port being provided in the vicinity of the upper portion of the composite hopper, and the exhaust port on the upper end side being arranged upward There is provided an asphalt pavement machine including a ventilation duct provided with a suction duct and a blower provided with a fan disposed inside the smoke suction duct.

  According to this configuration, when the blower is driven, outside air is sucked into the ventilation from the suction port of the smoke suction duct with the smoke in the vicinity of the upper portion of the composite hopper. And this passes through the smoke suction duct and the blower, and further an air flow discharged from the exhaust port of the blower into the atmosphere. Therefore, by the air flow, the smoke generated in the asphalt composite material in the composite material hopper can be discharged in a direction having little influence on the body and machine operation of the operator and disappear in the atmosphere.

  The invention according to claim 2 is an asphalt pavement machine comprising a pavement machine main body provided with an operator station on the upper rear side, and a composite hopper disposed so as to be integrally movable on the front side of the pavement machine main body. The exhaust port has an exhaust port, the lower end side having the suction port covers at least a part of the upper surface opening of the composite material hopper, and the exhaust port on the upper end side is arranged upward to be attached to the composite material hopper. A smoke suction duct, a suction port and an exhaust port are provided, and a fan is disposed therein, and the suction port on one end side is connected to the exhaust port of the smoke suction duct, and the exhaust port on the other end side An asphalt pavement machine provided with a ventilation provided with a blower attached to the fume suction duct with the air in the atmosphere.

  According to this configuration, when the blower is driven, the outside air passes through the composite material hopper and is sucked into the ventilation from the suction port of the smoke suction duct with the smoke in the composite hopper. And this passes through the smoke suction duct and the blower, and further an air flow discharged from the exhaust port of the blower into the atmosphere. Therefore, by the air flow, the smoke generated in the asphalt composite material in the composite material hopper can be discharged in a direction having little influence on the body and machine operation of the operator and disappear in the atmosphere.

  According to a third aspect of the present invention, there is provided an asphalt according to the second aspect, wherein the blower is rotatably attached to the fume suction duct and the direction of the exhaust port can be adjusted by the rotation. Provide paving machines.

  According to this configuration, when the blower is rotated in accordance with the direction of the wind and the direction of the discharge port of the blower is adjusted, the fumes are further discharged in a direction that has little influence on the body of the operator and the machine operation. Can do.

  According to a fourth aspect of the present invention, in the configuration of the first, second, or third aspect, the smoke suction duct is opened and closed by an opening / closing cover that captures the smoke from the composite hopper on the front wall. An asphalt pavement machine provided with an auxiliary suction port capable of taking in the smoke captured by the opening / closing cover into the smoke suction duct.

  According to this configuration, when the opening / closing cover provided on the front wall of the smoke suction duct is opened during work, a part of the smoke that escapes along the front wall of the smoke suction duct is captured by the opening / closing cover, Further, the trapped smoke can be taken into the smoke suction duct from the auxiliary suction port.

  According to a fifth aspect of the present invention, in the configuration according to the first, second, third, or fourth aspect, the exhaust port on the upper end side of the smoke suction duct is disposed higher upward so that the fan can be sucked by a draft effect due to the rising air current of the smoke. Provide an asphalt paving machine that can help with fumes emission.

  According to this configuration, since the exhaust port on the upper end side of the smoke suction duct is provided at a high upper position, it is possible to assist the fan suction and the smoke discharge by the draft effect due to the rising airflow of the smoke.

  When the blower is driven, the present invention takes outside air into the composite hopper, and efficiently generates the smoke generated in the composite hopper to the outside through the smoke suction duct and the blower together with the outside air. Since it can be discharged in a direction that has little influence on machine operation, it can contribute to the improvement of the working environment.

  Moreover, since the direction of the discharge port of the blower can be adjusted, it is possible to discharge the smoke in a direction that has less influence on the body of the operator and the machine operation.

  In addition, part of the fumes that escaped along the front wall of the fumes suction duct can be captured by the open / close cover and the auxiliary suction port, and this can be taken into the fumes suction duct for processing, so that the fumes can be efficiently removed. Can be processed.

  In addition, an exhaust port on the upper end side of the smoke suction duct is provided at a high upper position so that the fan suction and smoke discharge can be assisted by the draft effect caused by the rising airflow of the smoke. The smoke generated in the air can be efficiently discharged to the outside together with the outside air through the smoke suction duct and the blower.

The front view of the asphalt pavement machine concerning the embodiment of the present invention. The side view explaining the front part structure of an asphalt pavement machine same as the above. The top view explaining the front part structure of an asphalt pavement machine same as the above.

  In order to achieve the object of the present invention to provide an asphalt pavement machine capable of efficiently discharging the smoke generated in the composite hopper and reducing the influence of the smoke on the operator, In an asphalt pavement machine comprising a paver main body provided with a station and a composite hopper disposed on the front side of the paver main body, the asphalt pavement machine has a suction port and an exhaust port, and the lower end side having the suction port is the composite material Provided in the vicinity of the upper part of the hopper, and provided with a ventilation provided with a smoke suction duct with the exhaust port on the upper end side disposed upward, and a blower mounted by installing a fan inside the smoke suction duct. And realized by.

  Hereinafter, an example of an asphalt paving machine according to an embodiment of the present invention will be described in detail with reference to the drawings.

  1 to 3 show an embodiment of an asphalt paving machine according to the present invention, FIG. 1 is a front view of the asphalt paving machine, FIG. 2 is a side view showing the front structure of the asphalt paving machine, and FIG. FIG. 2 is a plan view showing a front structure of the asphalt pavement machine. In the following description, the left and right direction left side of FIG. 2 will be described as the front-rear direction front and the right side as the rear side, the up-down direction is up and down, and the direction perpendicular to the page is the left and right.

  In FIG. 1, a goose asphalt finisher 10 as an asphalt pavement machine is a traveling vehicle body 12 (hereinafter referred to as a pavement machine body) having a composite hopper 11 for housing a goose asphalt mixture as a paving material. "Pavement machine body 12") and a pair of screeds on the left and right that are pulled by the left and right leveling arms 13 and leveled with goose asphalt mixture to smooth the construction base (paving surface). An apparatus (not shown) is configured.

  The pavement machine main body 12 has a conveyor (not shown) that conveys the goose asphalt mixture in the composite hopper 11 to the rear side of the pavement machine main body 12 over almost the entire length of the pavement machine main body 12. Is provided.

  As shown in FIG. 1, an operator station 14 is provided on the upper rear side of the paving machine body 12, and the handle 15 of the goose asphalt finisher 11 is operated on the floor surface 14 a of the operator station 14. A driver's seat (not shown) on which a performing operator sits is attached.

  As shown in FIG. 3, the composite hopper 11 has a rectangular shape in plan view, and is formed as a deep box-shaped deep hopper so that semi-liquid and fluid goose asphalt composite can be stored inside. Yes. In addition, a pair of lids 16 and 16 that can be opened and closed are provided in a portion of the front upper surface where the composite material inlet portion 18 is formed, and a ventilation 17 is provided on the rear upper surface excluding the composite material input portion 18. It is attached.

  The pair of lids 16 are opened at the time of operation, and the goose asphalt mixture can be supplied into the mixture hopper 11 through the mixture input port 18.

  As shown in FIGS. 1 to 3, the ventilation 17 includes a smoke suction duct 19 and a blower 20.

  The blower 20 is a sirocco fan, and has an impeller 23 as a fan that is rotated by a motor 25 (see FIG. 2) at a central portion of a scroll-like casing 22 having an intake port 22a and an exhaust port 22b. When the impeller 23 is rotated by driving the motor 25, air is sucked into the casing 22 from the air inlet 22a, and an air flow is generated in which the sucked air is discharged from the air outlet 22b.

  The smoke suction duct 19 is a cylindrical member provided with a suction port 19 a on the lower end side and an exhaust port 19 b on the upper end side, and is attached in a state standing on the composite hopper 11. Further, the smoke suction duct 19 is preferably disposed at a position above the operator sitting on the driver's seat attached to the operator station 14 so that the position of the exhaust port 19b on the upper end side is higher. It is set as the structure which can assist the suction of the fan in the air blower 20, and fumes discharge | emission with the draft effect by.

  More specifically, the smoke suction duct 19 has a substantially quadrangular pyramid shape, and the left and right widths on the lower end side where the suction port 19 a is provided are formed substantially equal to the left and right widths of the composite hopper 11. Therefore, the fumes suction duct 19 covers the composite material hopper 11 in a state where it covers substantially the entire upper surface other than the composite material inlet port 18 and is in close contact with the periphery of the opening of the composite material hopper 11. It is fixedly attached to the material hopper 11. On the other hand, the front-rear and left-right widths on the upper end side where the exhaust port 19b is provided are smaller than those on the lower end side where the suction port 19a is provided. And the air blower 20 is attached to the fume suction duct 19 by connecting the air intake port 22a of the casing 22 in the air blower 20 to the peripheral portion of the exhaust port 19b. Note that the lower end side of the smoke suction duct 19 is not necessarily attached from the inside of the composite hopper 11 even if it is not attached so as to cover substantially the entire upper surface other than the composite material inlet port 18 of the composite hopper 11. If it is in the state where the rising smoke is sucked, it may be attached near the upper part of the composite hopper 11.

  Further, as shown in FIG. 1, the front wall of the smoke suction duct 19 is provided with an opening / closing cover 26 having a hood shape with a sectoral cross section and an auxiliary suction port 19 c opened and closed by the opening / closing cover 26. As shown in FIG. 2, the opening / closing cover 26 is rotatably attached to the smoke suction duct 19 via a pivot 27, and the lower end side can be taken in and out of the smoke suction duct 19 from the auxiliary suction port 19c. Yes. Further, during the pause, the open / close cover 26 is pushed into and accommodated in the smoke suction duct 19 from the auxiliary suction port 19c as shown by a two-dot chain line in FIG. 2, and the auxiliary suction port 19c is closed. Moreover, at the time of work, as shown by a solid line in FIG. 2, it is pulled out from the inside of the smoke suction duct 19 and is used in a state of projecting above the auxiliary suction port 19c. During operation, a part of the smoke that escapes along the front wall of the smoke suction duct 19 without being sucked into the smoke suction duct 19 from the suction port 19a is captured by the opening / closing cover 26, and is captured. Smoke can be taken into the smoke suction duct 19 through the auxiliary suction port 19c.

  Therefore, when the blower 20 is driven and the impeller 23 is rotated, the smoke suction duct 19 sucks the smoke from the suction port 19a and the auxiliary suction port 19c by the air flow generated by the blower 20, and discharges the smoke into the exhaust port. It can exhaust from 19b. Further, the smoke exhausted from the exhaust port 19b enters the casing 22 through the exhaust port 22a, and is further emitted from the exhaust port 22b toward the atmosphere.

  Note that the blower 20 is mounted so as to be able to turn in the horizontal direction around the smoke suction duct 19, that is, to be rotatable with respect to the smoke suction duct 19. By this rotation, the exhaust of the casing 22 in the blower 20 is performed. The direction of the mouth can be adjusted by approximately 360 degrees according to the wind direction, work environment, and the like.

  Next, in the goose asphalt finisher 11 provided with the ventilation 17, an operation of discharging the fumes generated from the goose asphalt composite in the composite hopper 11 will be described.

  First, the goose asphalt finisher 11 opens the lid 16 and opens the mixture input port 18 during work, and the goose asphalt mixture carried by a dump truck or the like is put into the mixture hopper 11. Further, the blower 20 is driven to rotate the impeller 23. When the impeller 23 of the blower 20 starts to rotate, an air flow that flows from the suction port 19a side of the smoke suction duct 19 to the blower 20 side is generated. Thereby, outside air is forcibly sucked into the smoke suction duct 19 through the inside of the composite material hopper 11 with the attraction of the smoke. In addition, a part of the smoke that escapes along the front wall of the smoke suction duct 19 without being sucked into the smoke suction duct 19 from the suction port 19a is an auxiliary suction port 19c in which the opening / closing cover 26 is opened. And is taken into the fume suction duct 19. The outside air and the smoke sucked into the smoke suction duct 19 pass through the casing 22 of the blower 20 and are discharged from the exhaust port 22b into the atmosphere and disappear.

  Therefore, according to the goose asphalt finisher 10 provided with the ventilation 17 in this embodiment, the smoke generated in the composite hopper 11 passes through the smoke suction duct 19 and the blower 20 together with the outside air taken into the composite hopper 11. Therefore, it can be discharged to the outside efficiently and in a direction with little influence on the body and machine operation of the operator or the like.

  Further, since the blower 20 can turn in the horizontal direction around the smoke suction duct 19 and is pivotably attached to the smoke suction duct 19, the exhaust of the casing 22 in the blower 20 is caused by this rotation. The direction of the mouth 22b can be adjusted to approximately 360 degrees according to the wind direction, work environment, and the like. Thereby, it can contribute to the improvement of a work environment further.

  Furthermore, since the opening / closing cover 26 and the auxiliary suction port 19c are provided on the front wall of the smoke suction duct 19, a part of the smoke escaping along the front wall of the smoke suction duct 19 is removed by the opening / closing cover 26 and the auxiliary suction port 19c. Since it can be captured and taken into the fumes suction duct 19, the fumes can be processed efficiently.

  In addition, a discharge port on the upper end side of the smoke suction duct 19 is provided at a high upper position so that the fan suction and the smoke discharge can be assisted by the draft effect due to the rising air current of the smoke. The smoke generated inside can be efficiently discharged to the outside through the smoke suction duct and the blower together with the outside air.

  It should be noted that the present invention can be variously modified without departing from the spirit of the present invention, and the present invention naturally extends to the modified ones.

  Although the present invention has been described as applied to a goose asphalt finisher, it can also be applied to a wide range of general asphalt paving machines.

10 Goose asphalt finisher (asphalt paving machine)
DESCRIPTION OF SYMBOLS 11 Compound material hopper 12 Pavement machine main body 13 Leveling arm 14 Operator station 14a Floor 15 Handle 16 Lid 17 Ventilation 18 Compound material inlet part 19 Smoke inlet duct 19a Suction inlet 19b Exhaust outlet 19c Auxiliary inlet 20 Blower 21 Exhaust duct 21a Lower side 22 Casing 22b Exhaust port 23 Impeller (fan)
25 Motor 26 Open / close cover 27 Axis

Claims (5)

In an asphalt pavement machine comprising a paver main body provided with an operator station on the upper rear side and a composite hopper disposed on the front side of the main body of the pavement machine,
A smoke suction duct having a suction port and an exhaust port, and a lower end side having the suction port is provided in the vicinity of the upper portion of the composite hopper, and the exhaust port on the upper end side is disposed above;
A blower installed by disposing a fan inside the smoke suction duct;
An asphalt paving machine characterized by having a ventilation provided with. In an asphalt pavement machine provided with a paver main body provided with an operator station on the upper rear side, and a composite hopper arranged to be movable integrally with the front side of the paver main body,
A suction port and an exhaust port, and at least a part of the upper surface opening of the composite hopper is covered on the lower end side having the suction port, and the exhaust port on the upper end side is arranged upward to provide the composite hopper An attached fume suction duct,
A suction port and an exhaust port are provided, and a fan is disposed therein. The suction port on one end side is connected to the exhaust port of the smoke suction duct, and the exhaust port on the other end side is directed to the atmosphere. A blower attached to the smoke suction duct,
An asphalt paving machine characterized by having a ventilation provided with.   The asphalt pavement machine according to claim 2, wherein the blower is rotatably attached to the smoke suction duct, and the direction of the exhaust port can be adjusted by the rotation.   The smoke suction duct has an opening / closing cover that captures the smoke from the composite hopper on the front wall, and an auxiliary member that can be opened and closed by the opening / closing cover, and that can capture the smoke captured by the opening / closing cover into the smoke suction duct. The asphalt pavement machine according to claim 1, 2 or 3, wherein a suction port is provided.   The exhaust port on the upper end side of the smoke suction duct is arranged high above, so that the suction of the fan and the discharge of the smoke can be assisted by the draft effect by the rising airflow of the smoke. Or asphalt pavement machine of 4.

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