JP3148016U - Heavy machinery carrier - Google Patents

Abstract

There is provided a heavy equipment transport vehicle capable of loading and unloading heavy equipment even in a place where a large space cannot be secured at the rear of the vehicle, and capable of increasing the load weight while suppressing the weight of the entire vehicle. A load carrier 3 is supported so as to be tiltable with respect to a chassis 2 positioned on the rear side of a vehicle and can be loaded with heavy machinery, and a chassis 2 on the front side of the hinge mechanism 4 with respect to the chassis 2. A front side cylinder mechanism 6 capable of supporting the loading platform 3 and tilting the loading platform 3 using the first hydraulic cylinder 5, and supporting the loading platform 3 with respect to the chassis 2 on the vehicle rear side of the hinge mechanism 4, A heavy equipment transporter comprising a rear cylinder mechanism 8 capable of tilting the loading platform 3 using a hydraulic cylinder 7. [Selection] Figure 1

Description

  The present invention relates to a heavy machinery transport vehicle, and more particularly to a heavy machinery transport vehicle in which a loading platform is tiltable for loading and unloading heavy machinery.

  A conventional heavy-duty transport vehicle configured so that the loading platform can tilt is configured as shown in FIG. 7, for example. In FIG. 7, the heavy equipment transport vehicle 100 has a loading platform 101 on which heavy equipment such as a brozer and a power shovel can be loaded, and the loading platform 101 introduces the heavy equipment onto the loading platform 101 or leads the heavy equipment from the loading platform 101. In this case, the hydraulic cylinder 102 is tilted from the horizontal state shown in FIG. 7 (A) to the inclined state shown in FIG. 7 (B). Further, as shown in FIG. The entire loading platform 101 is slid along the swing arm 103 provided until the rear end of the platform 101 lands. At this time, the hydraulic cylinder 102 is also slid toward the rear of the vehicle along the rail mechanism 105 provided on the chassis 104. When the rear end portion of the loading platform 101 is landed on the ground 106, a guide plate 107 that eliminates a step between the rear end portion and the ground 106 and enables introduction and derivation of heavy machinery is attached.

  In such a conventional heavy equipment transport vehicle, since it is necessary to slide the loading platform 101 backward when introducing and deriving heavy machinery, it is necessary to secure a space behind the vehicle by the amount of movement of the loading platform 101, and a narrow place Then loading and unloading heavy machinery may be difficult. Further, in order to slide the loading platform 101 to the rear of the vehicle, a swing arm 103 equipped with rollers and the like, a rail mechanism 105 for sliding the hydraulic cylinder 102, and the like are required, and the loading platform 101 is inclined. In this state, since the chassis 104 must support the loading platform 101 on the rear side of the horizontal state, high rigidity and strength are required particularly on the rear side of the chassis 104, and the weight on the chassis 104 side increases. When the weight on the chassis 104 side is increased, the weight of the entire vehicle (heavy equipment transport vehicle 100) is also increased, so that the load weight of the heavy equipment transport vehicle 100 is reduced in terms of weight control of the entire vehicle.

  The present invention pays attention to such problems in the conventional heavy equipment transport vehicle, and enables loading and unloading of heavy equipment even in a place where a large space cannot be secured behind the vehicle, while keeping the weight of the entire vehicle relatively small. It is an object of the present invention to provide a heavy equipment transporter capable of increasing the load weight.

  In order to solve the above-described problems, a heavy-duty transport vehicle according to the present invention includes a loading platform that can be tilted with respect to a chassis located on the rear side of a vehicle and can be loaded with heavy machinery, and the hinge mechanism. Supporting the loading platform with respect to the chassis on the vehicle front side, supporting the loading platform with respect to the chassis on the vehicle rear side of the hinge mechanism, and a front cylinder mechanism capable of tilting the loading platform using the first hydraulic cylinder, And a rear cylinder mechanism capable of tilting the cargo bed using the second hydraulic cylinder.

  In such a heavy-duty transporter vehicle, when the carrier is tilted, the carrier does not need to be slid toward the rear of the vehicle. That is, the loading platform can be tilted by simply tilting around the hinge mechanism arranged at a predetermined position of the chassis without being slid toward the rear of the vehicle. This is performed using a first hydraulic cylinder and a second hydraulic cylinder arranged in the front-rear direction. These first and second hydraulic cylinders are not slid in the vehicle front-rear direction with respect to the chassis, although they perform predetermined expansion and contraction operations. Therefore, the sliding movement of the loading platform toward the rear of the vehicle becomes unnecessary, and it becomes possible to easily load and unload heavy machinery even in a place where a large space cannot be secured at the rear of the vehicle. In addition, the hinge mechanism that is the center of rotation of the loading platform should be set at an appropriate position in the chassis so that it can properly support the load from the loading platform side and does not increase the weight of the chassis significantly. Well, since the swing arm and rail mechanism for sliding the loading platform and hydraulic cylinder are not required, it is possible to keep the weight on the chassis side small, and the weight of the entire vehicle is reduced accordingly. It is possible to increase the load weight of the heavy equipment transporter.

  In the heavy machinery transport vehicle according to the present invention, it is preferable that the first hydraulic cylinder and the second hydraulic cylinder are simultaneously operated by hydraulic pressure from the same hydraulic circuit. That is, the path of the hydraulic pressure supplied from the hydraulic circuit may simply be branched to the first hydraulic cylinder and the second hydraulic cylinder side. In this way, the entire hydraulic circuit can be simplified.

  In addition, a heavy machine is introduced to the rear end of the cargo bed with the load bed tilted and one end engaged with the rear end and the other end landed on the ground, and the heavy machine is introduced from above the load bed. It can be set as the structure by which the engaging part which can attach or detach the said one end of the conducting plate which can derive | lead out is provided. In conventional heavy machinery transport vehicles, such a guide plate has been attached and removed, but in the present invention, the rear end of the carrier is simply tilted without sliding it toward the rear of the vehicle. Since the landing is made, it is possible to easily install the guide plate in a predetermined posture and a predetermined place only by providing a simple engaging portion with the guide plate at the rear end of the loading platform.

  Moreover, it can be set as the structure by which the lock mechanism which latches operation | movement of a cylinder mechanism is provided with respect to the said rear side cylinder mechanism in the cylinder mechanism operation position where the loading platform was rotated in the horizontal state. If such a lock mechanism is provided, the horizontal state of the loading platform can be maintained by the locking mechanism, and the cylinder mechanism can be placed in a no-load state when the vehicle is traveling normally except when the loading platform is tilted. This can contribute to improving the durability of the entire cylinder mechanism. In addition, if the lock mechanism can maintain the horizontal state of the loading platform, it is possible to lock the hydraulic circuit that supplies hydraulic pressure to the cylinder mechanism, thereby improving the durability of the hydraulic circuit and the life of each component of the hydraulic circuit. Is also possible.

  Moreover, it is preferable that the lower end of the rear end portion of the loading platform is formed so as to be able to land on the ground when the loading platform is tilted. With this configuration, when tilting the loading platform, it becomes possible to automatically reach the desired tilting posture by landing at the rear end of the loading platform, improving the ease and accuracy of the loading platform tilting operation. It becomes possible to do.

  In addition, a configuration in which a bumper member for preventing entry of a following vehicle is provided at the rear end of the loading platform so as to be rotatable in a direction that does not hinder the loading platform tilting operation using the third hydraulic cylinder when the loading platform tilts is performed. It can be. Such a rush prevention bumper member has been conventionally equipped. However, in the present invention, when such a rush prevention bumper member is provided when the loading platform is tilted, the rush prevention bumper member is provided. In order to avoid this, the intrusion prevention bumper member is rotated in a direction that does not become an obstacle by using the third hydraulic cylinder.

  Further, it is preferable that two first hydraulic cylinders and two second hydraulic cylinders are provided on the left and right sides in the width direction of the vehicle. The pair of left and right hydraulic cylinders can equally share the output from the cylinder side and the load from the loading platform side, and each hydraulic cylinder can be downsized compared to the operation of a single hydraulic cylinder. Smooth operation can be ensured.

  As for the front side cylinder mechanism, the first hydraulic cylinder is a trunnion type hydraulic cylinder capable of rotatably supporting the cylinder body, and the rod tip side of the first hydraulic cylinder is on the loading platform side. A connected configuration can be adopted. Alternatively, as the front side cylinder mechanism, a configuration in which the first hydraulic cylinder is configured to tilt the loading platform via an arm that is swingably coupled between the chassis and the loading platform. You can also. In the latter configuration, the vertical dimension required for operation can be reduced.

  Further, with respect to the rear side cylinder mechanism, it is possible to adopt a configuration in which the second hydraulic cylinder is configured to tilt the loading platform via an arm that is swingably connected between the chassis and the loading platform. .

  According to the heavy equipment transport vehicle of the present invention, the front and rear cylinder mechanisms located on both sides of the hinge mechanism as the center of rotation do not slide and move the loading platform rearward. Since it is rotated to the posture, it is not necessary to secure a large space behind the vehicle when loading and unloading heavy machinery, and it is possible to load and unload heavy machinery even in a narrow place. In addition, compared to the chassis-side structure when the conventional loading platform is slid backward, the chassis-side weight can be reduced, and the weight of the entire vehicle is kept relatively small, increasing the load weight. Can be provided.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
1 to 4 show a heavy-duty transporter according to one embodiment of the present invention. In FIG. 1, a heavy equipment transport vehicle 1 includes a chassis 2 located on the rear side of the vehicle, and a loading platform 3 that is supported to be tiltable with respect to the chassis 2 and can be loaded with heavy equipment. The loading platform 3 is supported so as to be tiltable with respect to the chassis 2 with a hinge mechanism 4 as a rotation center (4 indicates the rotation center). On the vehicle front side of the hinge mechanism 4 is provided a front side cylinder mechanism 6 that supports the loading platform 3 with respect to the chassis 2 and can tilt the loading platform 3 using a first hydraulic cylinder 5. On the vehicle rear side of the hinge mechanism 4, a rear cylinder mechanism 8 is provided that supports the loading platform with respect to the chassis 2 and can tilt the loading platform 3 using the second hydraulic cylinder 7. Each of the first hydraulic cylinder 5 and the second hydraulic cylinder 7 is provided for each of the left and right objects in the width direction of the vehicle (direction perpendicular to the paper surface in FIG. 1). By using a pair of left and right hydraulic cylinders 5 and 7, the output from the cylinder side and the load from the loading platform 3 side can be equally shared, and each hydraulic cylinder can be downsized and the entire cylinder mechanism can be operated smoothly. Is peeled off.

  In the present embodiment, the front side cylinder mechanism 6 is configured as shown in FIG. The first hydraulic cylinder 5 is a trunnion-type hydraulic cylinder capable of rotatably supporting the cylinder body, and the cylinder body is rotatably supported on the chassis 2 side. The rod tip side is connected to the loading platform 3 side. By the expansion / contraction operation of the first hydraulic cylinder 5, the loading platform 3 is tilted and the returning operation from the tilted posture to the horizontal posture is performed.

  In the present embodiment, the rear cylinder mechanism 8 is configured as shown in FIG. A bracket 10 is fixed to the chassis 2 portion in the vicinity of the rear wheel 9, and an arm 11 is connected between the chassis 2 side and the loading platform 3 so as to be swingable around the lower end portion of the bracket 10. The rod tip of the second hydraulic cylinder 7 is connected to the tip (upper end) of the swing arm 11. The rear end portion side (the opposite rod side) of the second hydraulic cylinder 7 is connected to the loading platform 3. A roller 12 is rotatably provided at the tip of the swing arm 11, and the roller 12 is rolled along a guide groove (not shown) formed in the loading platform 3. . The swing arm 11 is swung by the expansion and contraction operation of the second hydraulic cylinder 7, and accordingly, the loading platform 3 tilts and returns from the tilted posture to the horizontal posture. As the swing arm 11 swings, the roller 12 rolls along a guide groove formed in the loading platform 3.

  The hydraulic pressure from the same hydraulic circuit (not shown) is sent to the first hydraulic cylinder 5 in the front side cylinder mechanism 6 and the second hydraulic cylinder 7 in the rear side cylinder mechanism 8 by a branch circuit. The mechanisms 6 and 8 are substantially simultaneously subjected to the tilting of the loading platform 3 and the returning operation from the tilted posture to the horizontal posture.

  In this embodiment, as shown in FIG. 4, the lock mechanism 13 that locks the operation of the cylinder mechanism 8 at the cylinder mechanism operation position where the loading platform 3 is rotated in the horizontal state with respect to the rear cylinder mechanism 8 is provided. Is provided. In this embodiment, the locking mechanism 13 is configured by providing a stopper 14 on the loading platform 3 side that can lock the upper end of the arm 11 when the arm 11 has been swung. By providing such a locking mechanism 13, it is possible to maintain the loading platform 3 in a horizontal state only by the locking mechanism 13, and when maintaining the horizontal state, the hydraulic circuit is locked or a load is applied to the roller 12. Thus, the cylinder mechanism 8 can be brought into a no-load state, and the durability of the entire portion can be improved.

  Further, in this embodiment, as shown in FIG. 3, an intrusion prevention bumper member 15 of the following vehicle is rotatably provided at the rear end portion of the cargo bed 3. When the lower end 17 of the rear end portion of the loading platform 3 is landed on the ground 18, the third hydraulic cylinder 16 is used to rotate the loading platform 3 in a direction that does not hinder the loading platform tilting operation. It has become. It can be set as the structure provided. Therefore, even when the inrush prevention bumper member 15 is provided, it is prevented that it becomes an obstacle to the tilting operation of the loading platform 3.

  Moreover, in this embodiment, as shown in FIG. 3, the engaging part 19 is provided in the rear-end part of the loading platform 3, and a heavy machine is introduced into this engaging section 19 on the loading platform 3 tilted. One end of a guide plate 20 from which heavy machinery can be led out from the loading platform 3 is engaged and the guide plate 20 is mounted. The other end of the guide plate 20 is landed on the ground 18, and the guide plate 20 forms a slope that serves as a guide surface from the ground 18 to the end on the loading platform 3, and is used for introducing and removing heavy machinery.

  In the heavy machinery transport vehicle 1 according to the present embodiment configured as described above, the loading platform 3 rotates the hinge mechanism 4 at the same position without being slid backward as in the conventional structure. It can be tilted to a predetermined posture simply by being tilted as the center. This tilting operation is performed by using the first hydraulic cylinder 5 and the second hydraulic cylinder 7 arranged before and after the hinge mechanism 4. Since the slide movement of the loading platform 3 toward the rear of the vehicle is not necessary, it is possible to easily load and unload heavy machinery even in a place where a large space cannot be secured at the rear of the vehicle. Further, since the sliding operation of the loading platform 3 and the tilting cylinders 5 and 7 is not required at all, the conventional structure (swing arm or hydraulic pressure for sliding the loading platform is required) that requires the sliding motion of the loading platform and the tilting cylinder. Compared to the conventional structure that required a rail mechanism to slide the cylinder), the chassis side strength and rigidity can be reduced, and the chassis side mechanism can be simplified. The weight can be reduced. As a result, the weight of the entire vehicle can be reduced, and the load weight of the heavy equipment transporter can be increased accordingly.

  About the front side cylinder mechanism 6, it is possible to employ | adopt the following modifications. In the above embodiment, in the front side cylinder mechanism 6, the loading platform 3 is moved up and down (tilted) directly by the first hydraulic cylinder 5, but for example, swings toward the chassis 21 as shown in FIG. 5. One end of the possible arm 22 is pivotally connected, the other end is coupled to the loading platform 23 side, and the first rear end of the swing arm 22 is pivotally coupled to the chassis 21 side. It is also possible to connect the tip of the rod side of the hydraulic cylinder 24 in a freely rotatable manner so that the loading platform 3 can be raised and lowered (tilted) through the expansion and contraction of the hydraulic cylinder 24 and the swing of the arm 22 associated therewith. is there. Such a mechanism is particularly effective when a large operating dimension cannot be obtained in the vertical direction. In this case, as shown in the drawing, the connecting structure between the swing arm 22 and the loading platform 23 is provided with a roller 25 rotatably at the front end of the swing arm 22 and the roller 25 is provided on the loading platform 23 side. A structure that rolls along the rail 26 can be employed.

  Further, the following modifications can be adopted for the rear side cylinder mechanism 8 as well. For example, as shown in FIG. 6, a trunnion type second hydraulic cylinder 31 is attached to the bracket 10 fixed to the chassis 2, and the rod tip is rotatably connected to an intermediate portion of the swing arm 8. The loading platform 3 can be moved up and down (tilted) through the expansion and contraction of the second hydraulic cylinder 31 and the swing of the swing arm 8.

  The structure of the heavy equipment transporter according to the present invention can be applied to any heavy transporter equipped with a tilting platform.

1 is a schematic side view of a heavy machinery transporter according to an embodiment of the present invention. FIG. 2 is an enlarged partial side view of the front side of the loading platform of the heavy machinery transport vehicle of FIG. 1. FIG. 2 is an enlarged partial side view of the rear side of the loading platform of the heavy machinery transport vehicle of FIG. 1. FIG. 4 is a side view of a lock mechanism portion in the rear side cylinder mechanism of FIG. 3. It is a schematic side view which shows the modification of a front part side cylinder mechanism. It is a schematic side view which shows the modification of a rear part side cylinder mechanism. It is a schematic side view which shows the conventional heavy machinery transporter and its tilting operation.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Heavy machine carrier 2 Chassis 3 Loading platform 4 Hinge mechanism 5 First hydraulic cylinder 6 Front side cylinder mechanism 7 Second hydraulic cylinder 8 Rear side cylinder mechanism 9 Rear wheel 10 Bracket 11 Arm 12 Roller 13 Lock mechanism 14 Stopper 15 Entry Prevention bumper member 16 Third hydraulic cylinder 17 Lower end 18 of rear end of loading platform 19 Ground 19 Engaging portion 20 Guide plate 21 Chassis 22 Swing arm 23 Loading platform 24 First hydraulic cylinder 25 Roller 26 Guide rail 31 Second hydraulic cylinder

Claims (10)

  A loading platform that is supported to be tiltable with respect to a chassis located on the rear side of the vehicle and that can be loaded with heavy machinery, and that supports the loading platform with respect to the chassis on the front side of the hinge mechanism. A front cylinder mechanism capable of tilting the cargo bed using a hydraulic cylinder, and a rear cylinder mechanism capable of supporting the cargo bed with respect to the chassis on the vehicle rear side of the hinge mechanism and tilting the cargo bed using a second hydraulic cylinder A heavy machinery transporter characterized by comprising:   The heavy machinery transport vehicle according to claim 1, wherein the first hydraulic cylinder and the second hydraulic cylinder are simultaneously operated by hydraulic pressure from the same hydraulic circuit.   At the rear end of the loading platform, with the loading platform tilted, a heavy machine is introduced onto the tilted loading platform with one end engaged with the rear end and the other end landed on the ground, and the heavy machine is derived from the loading platform. The heavy machinery transport vehicle according to claim 1, wherein an engaging portion is provided to which the one end of the possible guide plate is detachable.   4. The lock mechanism according to claim 1, further comprising: a lock mechanism that locks an operation of the cylinder mechanism at a cylinder mechanism operation position in which a loading platform is rotated in a horizontal state with respect to the rear side cylinder mechanism. Heavy equipment transporter.   The heavy machinery transport vehicle according to any one of claims 1 to 4, wherein a lower end of a rear end portion of the loading platform is formed to be able to land on the ground when the loading platform is tilted.   The intrusion prevention bumper member of the following vehicle is provided at the rear end portion of the loading platform so as to be rotatable in a direction that does not become an obstacle to the loading platform tilting operation using the third hydraulic cylinder when the loading platform tilts. The heavy machinery transport vehicle according to any one of 1 to 5.   The heavy machinery transport vehicle according to any one of claims 1 to 6, wherein two first hydraulic cylinders and two second hydraulic cylinders are provided on each of left and right objects in a width direction of the vehicle.   The first hydraulic cylinder in the front side cylinder mechanism is a trunnion type hydraulic cylinder capable of rotatably supporting a cylinder body, and a rod tip side of the first hydraulic cylinder is connected to the loading platform side. The heavy machinery transport vehicle according to any one of claims 1 to 7.   2. The front cylinder mechanism is configured such that the first hydraulic cylinder tilts the loading platform via an arm that is swingably coupled between the chassis and the loading platform. The heavy machinery transport vehicle according to any one of?   The said rear side cylinder mechanism is comprised so that a 2nd hydraulic cylinder may tilt a loading platform via the arm connected so that rocking | fluctuation between the said chassis and the said loading platform was carried out. The heavy machinery transport vehicle according to any one of 9 above.

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