JP6558987B2 - Transport vehicle - Google Patents

Description

  The present invention relates to a transport vehicle that transports materials and equipment such as segments used in a shield machine, for example.

  As this type of transport vehicle, for example, one that transports a segment used in a shield method is known. Here, the shield method is to excavate the ground with a shield machine, construct the lining body by assembling the segments sequentially on the inner peripheral surface of the excavation and connecting them in the circumferential direction while connecting them in the circumferential direction. This is a construction method in which a propulsion reaction force is obtained from the formed lining body and the excavation work is advanced by a shield machine.

  Specifically, in the shield method, since the assembly work of the segment is performed inside the outer shell of the shield machine, it is necessary to transport the segment to the rear equipment connected to the rear of the shield machine through the tunnel tunnel. . The segment carried into the already-constructed lining body is loaded on a transport vehicle, and is transported to the rear equipment located forward along the rails laid in the already-constructed lining body. The segment transported to the rear facility is supplied to an erector provided at the rear end of the shield machine by a Telha (hoist type crane) provided in the rear facility and assembled as a cylindrical lining body. .

  As a transport vehicle in such a shield method, a battery-type locomotive that does not discharge exhaust gas is generally used because it is used in an underground closed space. However, in this locomotive, when the shield tunnel is constructed for a long distance, the battery capacity becomes insufficient, so it is necessary to replace the battery during the excavation. In particular, demand for long-distance tunnels has increased in recent years, and the locomotive travel distance has become longer, so it has been necessary to increase battery capacity in order to reduce the number of battery replacements. Therefore, an electric vehicle driven by an electric motor described in Patent Document 1 is known as a transport vehicle that eliminates the need for battery replacement by replacing the battery from a conventional lead-acid battery with a lightweight, compact, and large-capacity lithium ion battery. It has been.

  The electric vehicle disclosed in Patent Document 1 includes an electric vehicle main body, a vehicle upper power supply unit that receives power in a non-contact manner from the ground power supply unit, a drive unit that projects the vehicle upper power supply unit from the electric vehicle main body, a battery, and a control. Department. Then, when the electric vehicle travels and enters the power feeding section, the control unit drives the driving unit to project the vehicle upper power feeding unit from the electric vehicle main body, approaches the ground side power feeding unit, and generates power without contact. Let me receive it. Further, when the electric vehicle travels and goes out of the power feeding section, the control unit drives the driving unit to store the vehicle upper power feeding unit in the electric vehicle main body. As a result, a transport system capable of long-distance operation and high transport efficiency is realized.

JP 2003-284201 A

  However, since the electric vehicle described in Patent Document 1 is a track-type transport vehicle that runs on the track laid in the tunnel mine, the primary lining transports sleepers and rails to the face as the excavation progresses. It is necessary to unload heavy rails one by one in a narrow tunnel mine and extend the track. Moreover, after the construction of the lining body is completed, it is necessary to remove all the tracks. Therefore, the electric vehicle of Patent Document 1 has a problem that it is difficult to shorten the construction period and improve the segment conveyance efficiency because the track securing work is complicated.

  Therefore, instead of such a track type transport vehicle, a non-track type transport vehicle that travels with tires eliminates the work of laying the track in the tunnel mine, thereby shortening the construction period and improving the segment transport efficiency. It is expected that. However, in this case, since it is difficult to change the direction of the transport vehicle in a tunnel mine where space is limited, when the transport vehicle after unloading the segment is returned to the wellhead, it must be run in a rearward state. Therefore, there is a problem that it requires a technique for the driving and it is difficult to ensure the running performance in a good state.

  Therefore, the present invention has been made in view of the above-described circumstances, and it is possible to ensure good traveling performance when a transport vehicle used in a place where the direction change is difficult, such as in a tunnel mine, is reversely moved. For the purpose.

In order to solve the above problems, the transport vehicle according to the present invention is:
A non-orbit type transport vehicle provided with a vehicle body having a cab arranged on the front side and a cargo bed arranged on the rear side, and provided with a drive operation unit for driving the vehicle on the cab,
The driver's cab is provided with a driver's seat on each of the front side and the rear side across the drive operation unit ,
The cab is provided with an upward slope toward the front .

According to the present invention, the driver's cab is provided with the driver's seats on the front side and the rear side across the drive operation unit including the steering unit and the speed adjustment unit. By using the driver's seat, it is possible to drive with good visibility behind the vehicle. Therefore, it is possible to ensure good traveling performance when the transport vehicle used in a place where it is difficult to change the direction such as in a tunnel mine or the like is moved backward.
In addition, since the cab is provided with an upward slope toward the front, the driver and the drive operation unit (specifically, the steering unit and the speed) can be used during reverse driving in the driver seat on the front side. In addition to being able to optimize the positional relationship with the adjustment unit), it is possible to ensure a good prospect behind the vehicle body, so that it is possible to improve drivability during reverse travel.

Moreover, the transport vehicle according to the present invention is
A non-orbit type transport vehicle provided with a vehicle body having a cab arranged on the front side and a cargo bed arranged on the rear side, and provided with a drive operation unit for driving the vehicle on the cab,
The driver's cab is provided with a driver's seat on each of the front side and the rear side across the drive operation unit,
A connecting portion for connecting a tow member for towing a towed vehicle is provided at the rear end of the vehicle body,
Between the vehicle body and the towed vehicle, a telescopic connecting member that connects them is installed,
The towed vehicle can be loaded on the loading platform by adjusting the length of the connecting member.
It is characterized by that.

According to the present invention, by pulling the towed vehicle, it is possible to load a load that is longer than the loading platform of the transport vehicle, and when the transported vehicle is moved backward, It is possible to prevent the traveling direction from flowing to the left and right to make the traveling unstable, and it is possible to secure the traveling stability during reverse traveling.

In the present invention, it is preferable that a battery made of a lithium ion battery for supplying power to the drive operation unit and a charger for charging the battery are mounted on the vehicle main body.
According to this, since the transport vehicle according to the present invention is equipped with the battery and its charger, it is possible to save the trouble of replacing the on-board battery and the trouble of removing it when charging, so that the charging work can be simplified. At the same time, the battery can be appropriately charged via a charger.

  ADVANTAGE OF THE INVENTION According to this invention, the favorable driving | running | working property at the time of moving backward the conveyance vehicle used in a place where a direction change is difficult like a tunnel mine can be ensured.

The conveyance vehicle in embodiment is shown, (a) is the schematic block diagram seen from the side, (b) is the block diagram seen from back, (c) is a top view. FIG. 1 shows a cross section inside a tunnel mine in which the transport vehicle of FIG. 1 is used, (a) shows a state in which a track type trailing carriage is arranged, and (b) shows a state in which a track type tail piece carriage is arranged. (C) is a fragmentary sectional view which shows the state by which the shelter and the belt conveyor are arrange | positioned. FIG. 1 shows a cross section inside a tunnel mine where the transport vehicle of FIG. 1 is used, (a) shows a state where a pressure pump and a shelter are arranged in a sediment pressure feeding system, and (b) shows a muddy water type pump and a rest place. It is a fragmentary sectional view which shows the state arrange | positioned. It is a schematic diagram of the shield tunnel which the conveyance vehicle of FIG. 1 travels. The conveyance vehicle in other embodiment is shown, (a) is the schematic block diagram seen from the side, (b) is a top view, (c) is the schematic block diagram which looked at the state which pulled up the trailer from the side. . The cross section in the tunnel mine where the conveyance vehicle of FIG. 5 is used is shown, (a) shows the state where the underground equipment is arranged, and (b) is a partial sectional view showing the state where the belt conveyor is arranged.

  Hereinafter, embodiments of a transport vehicle according to the present invention will be described with reference to the drawings. Moreover, in the following embodiment, a shield tunnel constructed by a shield method will be described as an example as an environment (a place where the direction change is difficult) where the transport vehicle according to the present invention is used. It should be noted that the present invention can be modified as appropriate without departing from the spirit or concept of the invention which can be read from the claims and the entire specification, and a transport vehicle with such a change is also included in the technical concept of the present invention. included. In the following description, the direction in which the transport vehicle travels toward the face in the tunnel mine is indicated as the forward direction, the direction in which the transport vehicle travels toward the wellhead is indicated as the reverse direction, and the direction in which the transport vehicle advances is defined as the forward direction and the reverse direction. The rear part is referred to as a front part, and the rear part is referred to as a rear part.

  In such a shield construction method, as shown in FIGS. 2, 3, 6 and the like, the shield tunnel T sends out excavated soil generated by excavating the ground by a shield machine (not shown) by a belt conveyor B for discharging soil, and the shield machine The segments S are sequentially assembled by an erector (not shown) provided at the rear portion, and connected to the advancing direction while connecting them in the circumferential direction to form a cylindrical covering body H that covers the inner peripheral surface of the excavation. Is built by At this time, the segment S for constructing the shield tunnel T is carried from the wellhead by the transport vehicle 1 as shown in FIGS.

  Here, the floor surface (that is, tunnel invert) in the tunnel tunnel of the shield tunnel T is mixed with a hardened material such as cement and lime and water in the shield excavation residual soil and an additive (for example, acrylate or polyacrylic acid). It is constructed by adding and mixing a salt or a derivative thereof as a main component to form treated soil M, and injecting and filling the treated soil M into the lower space of the tunnel segment as an invert material. In addition, although the case where the segment S is a synthetic segment is described here, the present invention is not limited to this. For example, when the segment S is an RC segment, the tunnel invert construction by the processing soil M can be omitted.

  As shown in FIGS. 1A to 1C, the transport vehicle 1 of the present embodiment is in the form of a so-called turret truck, and the vehicle main body 2 provided in the transport vehicle 1 has a front frame 3 on the front side. It is arranged, and a loading platform 5 is connected to the rear of the frame 3. The front frame 3 is provided with a device storage chamber 4 as a drive operation unit provided with various devices for traveling and steering (details will be described later) so as to be rotatable around a vertical axis. The front side of the frame 3 is formed obliquely upward toward the front.

  The front frame 3 is provided with a driver's cab 6 on which the driver gets on. The driver's cab 6 is fully open to the left and right, and a backrest 7 is erected at the rear to partition the cab 6 from the rear loading platform 5. A front rest 8 is provided at the front end of the front frame 3 so as to face the backrest 7, and a space between the backrest 7 and the front rest 8 is defined as a cab 6. Between the widthwise both ends of the backrest 7 and the frontrest 8, chains 9 are respectively constructed in the traveling direction to prevent the driver from falling from the cab 6.

  In the transport vehicle 1 of the present embodiment, a front wheel 10 including a tire that is one of the various devices described above is provided below the front frame 3 on the front side of the vehicle body 2, specifically below the device storage chamber 4. One wheel is arranged. In addition, in the transport vehicle 1, two rear wheels 11 including tires are disposed below the loading platform 5 on the rear side of the vehicle body 2. That is, the transport vehicle 1 is configured with a non-track type three-wheel structure that travels with the front wheels 10 and the rear wheels 11.

  In addition, the loading platform 5 is mounted with batteries 12 and 13 made of lithium ion batteries or the like stored therein at a position ahead of the rear wheel 11 and a position behind the rear wheel 11, respectively. Electric power is supplied from the batteries 12 and 13 to each unit. In addition, an openable / closable cover (not shown) is provided at a position above the batteries 12 and 13 in the loading platform 5. By opening this cover, the batteries 12 and 12 stored in the loading platform 5 of the vehicle main body 2 are provided. 13 can be maintained. Note that a plurality of the above-described segments S are stacked on the loading platform 5, and the segments S are prevented from being displaced or dropped by the fixed block 51 or the like, and can be transported in a stable state.

  Further, a charger (not shown) is provided in the vicinity of the backrest 7 in the cab 6 of the vehicle body 2. The batteries 12 and 13 are provided with connection means such as a connection plug (not shown) or a connection connector, and are connected to a charger mounted on the vehicle via the connection means for charging.

  In the device storage chamber 4, as various devices for running and steering, in addition to the front wheel 10 described above, a drive motor (not shown) that is a drive unit that drives the front wheel 10 and a steering unit that steers the front wheel 10 are provided. A handle 14 and an accelerator 15 that is a speed adjusting unit that adjusts the driving speed of the front wheel 10 are integrally provided. Further, a brake 16 and a side brake 17 are provided in the vicinity of the equipment storage chamber 4 in the cab 6.

  Here, the configuration of the handle 14 and the accelerator 15 is the same as that of the general turret track described above. That is, the handle 14 and the accelerator 15 are arranged coaxially with the front wheel 10 to form a circular shape, and the handle 14 is fixedly arranged on the upper part of the device storage chamber 4. Further, an accelerator 15 having a smaller diameter than the handle 14 is disposed above the handle 14 so as to be swingable about a rotation axis extending in the width direction. Then, in a state where the driver is on the driver's cab 6 facing forward with respect to the equipment storage chamber 4, the transport vehicle 1 is advanced by pushing down the rear side of the accelerator 15, and the front side of the accelerator 15 is pushed down. The transport vehicle 1 is moved backward. At this time, the handle 14 and the accelerator 15 are structured to be inclined upward toward the front so that they can be easily operated when moving forward.

  In the case of this embodiment, the transport vehicle 1 is provided with two driver seats on the cab 6. Specifically, the transport vehicle 1 is provided with a forward driver's seat 18 and a backward driver's seat 19 at a rear side position and a front side position with respect to the equipment storage chamber 4 in the cab 6 respectively. Yes. That is, since the reverse driver's seat 19 is provided on the front side of the front frame 3 that is inclined upward in the forward direction, it is higher than the forward driver's seat 18 and when seated. It arrange | positions so that it may be in the state inclined down toward the back of the vehicle main body 2. As shown in FIG. As a result, in the backward driver seat 19, the posture (driving posture) and operation method of the driver with respect to the steering wheel 14 and the accelerator 15 when seated are the same as the driving posture and operation method in the driver seat 18 during forward travel. It is supposed to be.

  That is, the driver who is seated in the forward driver's seat 18 at the time of forward travel advances the transport vehicle 1 by pushing down the rear side of the accelerator 15 that is the front side of the driver. At this time, if the front side of the accelerator 15 which is the back side for the driver is pushed down, the transport vehicle 1 moves backward. In addition, the driver who is seated in the reverse driver's seat 19 at the time of reverse travels the transport vehicle 1 backward by pushing down the front side of the accelerator 15 on the near side. At this time, if the rear side of the accelerator 15 on the back side for the driver is pushed down, the transport vehicle 1 moves forward. In other words, whether the driver is seated in the forward driver seat 18 or the backward driver seat 19, the driver always pushes down the accelerator 15 toward the user. By performing the operation, the transport vehicle 1 can travel in the direction in which the driver is facing.

  As described above, in the transport vehicle 1, the driving posture and the operation method for the handle 14 and the accelerator 15 can be secured in the same way when the vehicle is moving forward and when the vehicle is moving backward. Can be secured. The brake 16 and the side brake 17 described above are disposed in the vicinity of the driver seats 18 and 19, respectively.

  Further, since the cab 6 is provided with an upward inclination toward the front, a good prospect for the rear can be ensured during reverse operation using the reverse driver's seat 19, and drivability during reverse operation. Can be improved.

  In the transport vehicle 1 having such a configuration, the device storage chamber 4 in which the front wheel 10, the drive unit, the handle 14, and the accelerator 15 are integrated is provided so as to be turnable with respect to the cab 6 in the vehicle body 2, and a turret transport vehicle. For example, by reciprocating between the wellhead and the face in the tunnel of the shield tunnel T as shown in FIG. 4, materials and equipment such as the segment S are transported.

  Specifically, the shield tunnel T shown in FIG. 4 has a total length of 3000 m, has a downward slope of 15% from the wellhead to near 200 m, and is subsequently flat up to near 2600 m, and then the 200 m to the face is 15 m. % Ascending slope. At this time, since the materials and equipment such as the segment S are loaded on the loading platform 5 in the outward path, the loaded weight becomes, for example, about 1000 kg. On the other hand, on the return path, the loading weight becomes 0 kg by unloading on the face side.

  Further, in the tunnel mine, for example, as shown in FIG. 2 (a), a track-type succeeding carriage 100 in which a belt conveyor B for discharging excavated soil is arranged at the upper part is arranged. Further, as shown in FIG. 2B, a track type tail piece carriage 101 is arranged. Further, as shown in FIG. 2 (c), a shelter 102 and a belt conveyor B are arranged. Further, as shown in FIGS. 2B and 2C, a wind tube 103 and the like are also provided. Furthermore, as shown to Fig.3 (a), the pumping pump in the earth-and-sand pumping system and the resting place are arrange | positioned. Furthermore, as shown in FIG.3 (b), the muddy water type pressure pump and the resting place are arrange | positioned. Then, the transport vehicle 1 is loaded in a narrow tunnel mine provided with various facilities as described above in a state where a plurality of segments S are stacked on the loading platform 5, and reciprocates between the wellhead and the face.

  Thus, when a narrow tunnel mine becomes a traveling environment, it is difficult to secure a space for turning the transport vehicle 1, so the transport vehicle 1 is advanced from the pit to the face, while from the face to the pit. Means that the transport vehicle 1 is moved backward without turning and reciprocated between the wellhead and the face.

  In this case, in the transport vehicle 1 of the present embodiment, the driver's seats 18 and 19 are provided on the cab 6 on the rear side and the front side in the traveling direction with respect to the equipment storage chamber 4 including the handle 14 and the accelerator 15, respectively. Therefore, when driving forward, the driver's seat 18 on the rear side in the traveling direction can be used to drive in a good state while looking ahead of the vehicle, and when traveling backward, the driver's seat 19 on the front side in the traveling direction is used. By doing so, it is possible to drive in a good state while looking behind the vehicle. Therefore, even when used in a place where the direction change is difficult, such as in the narrow tunnel pit described above, good traveling performance can be ensured in both the forward and reverse directions of the transport vehicle 1.

  At this time, the vehicle body 2 is equipped with a charger for charging the batteries 12 and 13, so that it is possible to save the trouble of removing the on-board batteries 12 and 13 when charging, and simplify the charging operation. In addition, the batteries 12 and 13 can be appropriately charged via a charger.

  Moreover, the batteries 12 and 13 are made of lithium ion batteries that are lighter, more compact and have a larger battery capacity than lead-acid batteries, can be fully charged by charging for about 1 hour, and then the segment of the number (8 hours) without charging. S and the piping material P (see FIG. 5 described later) can be transported. Therefore, the battery replacement work is eliminated, and the efficiency of the transport work can be improved.

  Further, since the track 1 can be made trackless by the transport vehicle 1, it is not necessary to lay rails compared to the track type, and the subsequent rail removal work is also unnecessary, so that the construction period can be greatly shortened and the cost can be reduced.

In addition, this invention is not restricted to the conveyance vehicle 1 of embodiment mentioned above. For example, as shown in FIG. 5 in which parts corresponding to those in FIG. 1 are assigned the same reference numerals, a trailer 30 as a towed vehicle may be arranged behind the transport vehicle 1 and towed. In this case, as shown in FIGS. 5A to 5D, a connecting portion 21 that connects a joint 31 that is a pulling member for connecting and pulling the trailer 30 is connected to the rear end portion of the vehicle body 2. By pulling the trailer 30, it is possible to load materials and equipment such as a piping material P that is longer than the loading platform 5 of the transport vehicle 1. At this time, the end portion located on the front side of the joint 31 is connected to the connecting portion 21 of the vehicle body 2, and the end portion located on the rear side is detachably and integrally connected to the front side of the trailer 30. . Thus, since the joint 31 is detachable, it is normally removed and stored in the loading platform 5, and is taken out from the loading platform 5 and used when the trailer 30 is pulled.

  Further, the front end portion of the joint 31 is preferably pin-coupled at the connecting portion 21 between the vehicle body 2 and the trailer 30 so as to be swingable in the horizontal direction. According to this, even when the travel path is curved, the trailer 30 can be towed by following the transport vehicle 1. Note that the trailer 30 has, for example, a three-wheel structure in which two wheels are arranged on the front side and one wheel on the rear side (that is, a three-wheel structure similar to that of the transport vehicle 1). In the tunnel where the underground facilities 106 as shown in FIG. 6A with the same reference numerals are arranged, even when the tunnel invar is curved along the shape of the lining body H, stable traveling performance is ensured. It can be done. However, the conveyance vehicle 1 and the trailer 30 do not need to be limited to a three-wheel structure, and may have a structure of four or more wheels. The trailer 30 may have a two-wheel structure.

Further, a telescopic connecting member 60 that connects the vehicle main body 2 and the trailer 30 may be provided. In this case, the connecting member 60 is installed between a lever block (registered trademark) 61 attached to the load carrier 5 side of the backrest 7 of the vehicle body 2 and a fixed block 52 attached to the lever block 61 and the trailer 30. And a wire 62 to be configured. Then, by operating the lever block 61, the wire 62 is wound up, and the length of the connecting member 60 is adjusted (that is, the wire 62 is shortened), so that the trailer 30 can be lifted (loaded) on the loading platform 5. ing.
According to this, the trailer 30 fluctuates when the transport vehicle 1 is moved backward, so that it is possible to prevent the backward travel from becoming unstable due to the traveling direction of the transport vehicle 1 being flown to the left and right. Stability can be secured. In other words, it is possible to improve maneuverability when the transport vehicle 1 returns to the wellhead by reverse travel.

  Furthermore, although embodiment mentioned above describes the case where the front wheel 10 and the rear wheel 11 are provided with a tire, this invention is not limited to this. That is, as a conveyance vehicle, if it is a non-track type vehicle, for example, it may run with a caterpillar, and other various forms can be widely applied.

DESCRIPTION OF SYMBOLS 1 ... Conveyance vehicle, 2 ... Vehicle main body, 3 ... Front frame, 4 ... Equipment storage room (drive operation part), 5 ... Cargo bed, 6 ... Driver's cab, 7 ... Backrest, 8 ... Front rest, 10 ... Front wheel, 11 ... rear wheels, 12, 13 ... battery, 14 ... steering wheel (steering part), 15 ... accelerator (speed adjusting part), 16 ... brake, 17 ... side brake, 18 ... driver's seat (driver's seat on the rear side in the traveling direction) , 19 ... driver's seat (the driver's seat in the travel direction of the front side), 21 ... connecting portion, 30 ... trailer (towed vehicle), 31 ... joint (pulling member), T ... shield tunnel, H ... lining body, S ... Segment, B ... Belt conveyor, M ... Process soil

Claims (4)

A non-orbit type transport vehicle provided with a vehicle body having a cab arranged on the front side and a cargo bed arranged on the rear side, and provided with a drive operation unit for driving the vehicle on the cab,
The driver's cab is provided with a driver's seat on each of the front side and the rear side across the drive operation unit ,
The cab is provided with an upward slope toward the front . A non-orbit type transport vehicle provided with a vehicle body having a cab arranged on the front side and a cargo bed arranged on the rear side, and provided with a drive operation unit for driving the vehicle on the cab,
The driver's cab is provided with a driver's seat on each of the front side and the rear side across the drive operation unit ,
A connecting portion for connecting a tow member for towing a towed vehicle is provided at the rear end of the vehicle body,
Between the vehicle body and the towed vehicle, a telescopic connecting member that connects them is installed,
The guided vehicle can be loaded on the loading platform by adjusting the length of the connecting member . The transport vehicle according to claim 2 , wherein the driver's cab is provided with an upward slope toward the front. In the vehicle body,
A battery comprising a lithium ion battery for supplying power to the drive operation unit;
A charger for charging the battery is mounted. The transport vehicle according to any one of claims 1 to 3 .

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