JPH07292721A - Body construction of hydraulic working vehicle - Google Patents

Abstract

PURPOSE:To transport a hydraulic working vehicle by a trailer by setting the distance between the vertical cylinders of a front part and a rear part longer than the width of the load carrying platform of a trailer, and setting the stroke quantity of the vertical cylinder to be nearly the height up to the upper face part of the load carrying platform. CONSTITUTION:A plurality of vertical cylinders 26,... are detachably fitted respectively to the front part and the rear part of a vehicle body frame 23. In this case, the distance between the vertical cylinders 26 on the front side and the vertical cylinders 26 on the rear side is set longer than the width of the load carrying platform 34 of a trailer 33 for transporting vehicle. The stroke quantity of the vertical cylinder 26 is set to be nearly the height (hmax) from the ground GL up to the upper face part of the load carrying platform 34 of the trailer 33. Hereby, the side part of an upper turning body 10 or the outer circumferential part of the vehicle body frame 23 can be prevented from projecting outside the load carrying platform 34, and trailer transportation of a hydraulic working vehicle even mounting superlong attachment is made possible.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle body structure for a hydraulic work vehicle in which a super-long type work attachment is mounted on the front portion of the vehicle body.

[0002]

2. Description of the Related Art FIG. 7 is a partial cross-sectional plan view showing a traveling body of a self-propelled vehicle described in Japanese Utility Model Laid-Open No. 5-28705. In the self-propelled vehicle shown in FIG. 7, fixed frames 2 are provided at the front and rear of the body frame 1 of the traveling body, and the movable frame 5 fixed to the support 4 for the traveling drive member 3 is fixed to the fixed frame 2. The vehicle-width size of the traveling body can be adjusted by telescopically fitting and expanding and contracting the elongated hydraulic cylinder 6. Reference numeral 7 is a crawler wound around the traveling drive member 3.

[0003]

In a hydraulic work vehicle in which an upper revolving structure is connected to the upper part of a crawler type lower traveling structure and an ultra-long attachment is attached to the front part of the upper revolving structure, a high-altitude structure such as a building is constructed. In order to carry out the dismantling work of, it has to be moved to a fairly remote site. In this case, the ultra-long attachment is removed to transport the trailer, but the lateral width of the crawler-type lower traveling body is considerably longer than the width of the trailer bed, which makes transportation difficult. An object of the present invention is to solve a vehicle body structure of a hydraulic work vehicle that can solve the above problems.

[0004]

A hydraulic work vehicle according to the present invention has a plurality of upper swing bodies connected to an upper portion of a crawler-type lower traveling body, and a plurality of long booms provided at a front portion of the upper swing body. Booms are sequentially connected, an arm is connected to the tip of the boom on the tip side, and an ultra-long attachment with a work tool device connected to the tip of its arm is attached. Left and right beam-like frames are provided on the front and rear of the car body frame so as to extend outward, and the beam-like frames are inserted into the guide holes formed in the left and right crawler frames, respectively, and the crawler is inserted. The frame can be slid to the left and right with hydraulic cylinders, and it can be attached and detached. Furthermore, a vertical cylinder is attached to the car body frame in the vertical direction and the vertical cylinder is extended. Therefore as lifted from the ground lower traveling body, attached detachably to each plurality of vertical cylinders on the front and rear of the car body frame,
The distance between the front vertical cylinder and the rear vertical cylinder is set so that the width of the bed of the trailer for vehicle transportation is longer, and the stroke amount of the vertical cylinder from the ground to the upper surface of the bed of the trailer is approximately Configured by setting the height.

[0005]

[Action] Before transporting the trailer of the hydraulic work vehicle, first remove the ultra-long attachment attached to the front part of the upper swing body, and then remove the counterweight attached to the rear end of the upper swing body. Keep it. Next, the front and rear vertical cylinders attached to the car body frame in the center of the lower traveling body are extended to perform ground cutting of the lower surface of the crawler wound around the lower traveling body. . In this state, the crawler frames around which the crawlers are wound are removed on the left and right sides of the lower traveling body. Next, further extend the vertical cylinder to set the height position of the car body frame so that the height of the bottom of the car body frame from the ground is slightly higher than the maximum height of the upper surface of the loading platform of the trailer. . In the present invention, the distance between the front vertical cylinder and the rear vertical cylinder is set to be longer than the width of the trailer bed. Therefore, the trailer is moved backward so that the trailer bed can be inserted in the space. Then, when the loading position of the loading platform enters the lower side of the car body frame, the trailing of the trailer is stopped, and then the vertical cylinder is retracted to lower the vehicle body to the loading platform. Then, the front-rear direction of the upper swing body is made the same as the front-rear direction of the trailer. Since the lateral width dimension of the upper swing body is smaller than the bed width dimension, the side surface portion of the upper swing body does not project outward from the outer end surface of the luggage bed. After making the above state, the vertical cylinder is reduced and all the vertical cylinders are removed and stored separately on the trailer's bed. The length of the car body frame with all vertical cylinders removed in the front-rear direction (which means the length of the car body frame itself in the front-rear direction) is smaller than the width of the bed, so the outer periphery of the car body frame is It does not project outward from the outer end face. As described above, the hydraulic work vehicle can be loaded on the trailer without any trouble.

[0006]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a side view of a hydraulic working vehicle 8 having a vehicle body structure according to the present invention. In the figure, 9 is a lower traveling body of the hydraulic work vehicle 10, 10 is an upper swing body, 11 is a counterweight attached to the rear end of the upper swing body 10, and 12 is a counterweight.
Is a super long attachment mounted on the front part of the upper swing body 10, 13, 14 and 15 are first, second and third booms of the super long attachment 12, respectively, and 16 is connected to the tip of the third boom 15. The arm 17 is a crusher which is a work tool device connected to the tip of the arm 16. FIG. 2 is a side view of the lower traveling body 9 in the A section of FIG. In the figure, 18L and 18R are lower traveling bodies 9
The left and right traveling drive members (the traveling drive member 18R is not shown in the figure), 19 is the traveling drive member 18L (the traveling drive members 18L and 18R are constructed in a pair of symmetrical shapes, and therefore the same components are designated by the same reference numerals. , Left-hand drive member 1
8 will be described as a representative) crawler frame,
Reference numeral 20 'denotes front and rear guide holes formed in the crawler frame 19 in the left-right direction, and 21 denotes the traveling drive member 18
A crawler wound around L and a traveling motor 22 for driving the crawler 21 to rotate.

FIG. 3 is a plan view of a partly cutaway main part viewed from FIG. 2B. In the figure, 23 is a car body frame in the center of the lower traveling body 9, 24 and 24 'are beam-shaped frames fixed in the front and rear and rear portions of the car body frame 23, respectively, and 25 is a crawler frame 19 in the left and right direction. A hydraulic cylinder, which is a so-called spanner cylinder, for slidingly moving to the inside, 26 is a plurality of vertical cylinders mounted so that their axes are in the vertical direction, and 27 is a support arm supporting the vertical cylinder 26. , 28 are pins for attaching / detaching the vertical cylinder 26 and the support arm 27 to / from the car body frame 19, and 29 is a crawler frame 1.
A rod body for locking 9 to the car body frame 19, an arrow F is a forward direction of the lower traveling body 9, an arrow R is a reverse direction, and a dimension I is a front vertical cylinder 26 attached to the car body frame 23. The distance J between the rear vertical cylinder 26 and the rear vertical cylinder 26 is the length of the car body frame 23 in the front-rear direction. FIG. 4 is a view seen from CC in FIG. In the figure, 30 is a mounting bracket for the vertical cylinder 26, 3
1 is a float attached to the lower end of the rod of the vertical cylinder 26, dimension S is the maximum stroke amount of the vertical cylinder 26, and dimension H is from the ground to the bottom surface 3 of the car body frame 23.
The height is up to 2. FIG. 5 shows a trailer 3 for transporting a vehicle.
3 is a diagram showing a state in which 3 is moved backward to the lower side of the car body frame 23. FIG. In the figure, 34 is the bed of the trailer 33, and the dimension hmax. Is the maximum height of the rear upper surface of the loading platform 34,
The dimension ho is the ground (GL) on the loading position upper surface 35 of the loading platform 34.
The height and the dimension w are the width dimension of the upper swing body 10.

Next, the body structure of the hydraulic working vehicle 8 of the present invention will be described with reference to FIGS. According to the present invention, two (four in total) vertical cylinders 26 are detachably attached to the front and rear of the car body frame 23, and the space I between the front vertical cylinder 26 and the rear vertical cylinder 26 (Fig. Three
Is set to be longer than the width dimension (not shown) of the bed 34 of the trailer 33 for transporting the vehicle, and the stroke amount S (shown in FIG. 4) of the vertical cylinder 26 from the ground to the trailer 33 is set. Rear upper surface B of the loading platform 34 (shown in FIG. 5)
It is configured by setting the height to about.

Next, the operation of the vehicle body structure of the hydraulic work vehicle 8 of the present invention will be described. Before carrying out the trailer transportation of the hydraulic work vehicle, the super long attachment 12 mounted on the front part of the upper swing body 10 is first removed, and then the counterweight 11 (( (Shown in FIG. 1) is removed. Next, a total of four front side and rear side vertical cylinders 26 attached to the car body frame 23 at the center of the lower traveling body 9 are extended,
Ground cutting of the lower surface of the crawler 21 wound around the lower traveling body 9 is performed. In this state, the crawler frames 19 around which the crawlers 21 are wound on the left and right sides of the lower traveling body 9.
Remove. Next, the vertical cylinder 26 is further extended so that the height H (shown in FIG. 4) of the bottom surface 32 of the car body frame 23 from the ground is slightly smaller than the maximum height hmax of the rear upper surface a of the load carrier 34 of the trailer 33. The height position of the car body frame 23 is set to be higher. In the present invention, the interval dimension I between the front side vertical cylinder 26 and the rear side vertical cylinder 26 is set to be longer than the width dimension of the load carrier 34 of the trailer 33, so that the load carrier 34 of the trailer 33 is inserted between the above intervals. The trailer 33 is moved backward as it goes.

When the loading position upper surface 35 of the loading platform 34 of the trailer 33 being moved backward enters the lower side of the car body frame 23, the backward movement of the trailer 33 is stopped, and then the vertical cylinder 26 is contracted back to operate the vehicle body. The loading platform 34
Grate. Then, the front-rear direction of the upper swing body 10 is made the same as the front-rear direction of the trailer 33. Figure 6
FIG. 6 is a diagram showing a state in which the vehicle body for transporting a trailer of the hydraulic work vehicle 8 is mounted on the loading platform 34 of the trailer 33. Figure 6
In the state shown in (1), the lateral width W (shown in FIG. 5) of the upper swing body 10 is smaller than the width dimension of the cargo bed 34, so that the side surface portion of the upper swing body 10 projects outward from the outer end surface of the cargo bed 34. There is no. Vertical cylinder 2 after the above condition
6 is reduced, all the reduction cylinders 26 are removed (that is, the support arms 27 and the vertical cylinders 26 are removed by removing the pins 28 shown in FIG. 4), and they are separately stored in the bed 34 of the trailer 33. Since the length in the front-rear direction of the car body frame 23 with all the vertical cylinders 26 removed (which means the length in the front-rear direction of the car body frame 23 itself) is smaller than the width of the bed, the outer periphery of the car body frame 23 The part does not project outward from the outer end surface of the loading platform 34. As described above, the hydraulic work vehicle 8
Can be loaded on the trailer 33 without any trouble. In this embodiment, when loading the vehicle body on the trailer 33, the loading platform 3
Although the pillow member is not shown on the upper surface 35 (shown in FIG. 5) of the stacking position of No. 4, it is omitted for simplification of description.

[0011]

EFFECTS OF THE INVENTION In a hydraulic work vehicle in which an upper revolving structure is connected to the upper part of a crawler-type lower traveling structure, and a super-long attachment is attached to the front part of the upper revolving structure, the dismantling work of high-altitude structures such as buildings can be performed. To do that, you have to move to a fairly remote site. In this case, the ultra-long attachment is removed for transporting the trailer. However, since the lateral width of the crawler type lower traveling body is considerably longer than the width of the trailer bed, it is difficult to transport. However, in the vehicle body structure of the hydraulic work vehicle of the present invention, a plurality of vertical cylinders are detachably attached to the front and rear portions of the car body frame, and the distance between the front vertical cylinder and the rear vertical cylinder is set to The length of the trailer is set to be longer than the width of the trailer, and the stroke amount of the vertical cylinder is set to approximately the height from the ground to the upper surface of the trailer. Therefore, before transporting the trailer of the hydraulic work vehicle, first remove the ultra-long attachment attached to the front part of the upper swing body, and then remove the counterweight attached to the rear end of the upper swing body. . Next, the front and rear vertical cylinders attached to the car body frame in the center of the lower traveling body are extended to perform ground cutting of the lower surface of the crawler wound around the lower traveling body. . In this state, the crawler frames around which the crawlers are wound are removed on the left and right sides of the lower traveling body. Next, further extend the vertical cylinder to set the height position of the car body frame so that the height of the bottom of the car body frame from the ground is slightly higher than the maximum height of the upper surface of the loading platform of the trailer. . Then, the trailer is moved backward so that the trailer's carrier is inserted between the front vertical cylinder and the rear vertical cylinder. Then, when the loading position of the loading platform enters the lower side of the car body frame, the trailing of the trailer is stopped, and then the vertical cylinder is retracted to lower the vehicle body to the loading platform. Then, the front-rear direction of the upper swing body is made the same as the front-rear direction of the trailer. Since the lateral width dimension of the upper swing body is smaller than the bed width dimension, the side surface portion of the upper swing body does not project outward from the outer end surface of the luggage bed. After making the above state, the vertical cylinder is reduced and all the vertical cylinders are removed and stored separately on the trailer's bed. Since the length of the car body frame in the front-rear direction with all the vertical cylinders removed is smaller than the width of the luggage carrier, the outer peripheral portion of the car body frame does not project outward from the outer end surface of the luggage carrier. As described above, the hydraulic working vehicle can be easily and easily loaded on the trailer for trailer transportation.

[Brief description of drawings]

FIG. 1 is a side view of a hydraulic working vehicle having a vehicle body structure according to the present invention.

FIG. 2 is a side view of a lower traveling body in a portion A of FIG.

FIG. 3 is a plan view of a partly cutaway main part viewed from B of FIG. 2;

4 is a diagram viewed from CC in FIG. 3. FIG.

FIG. 5 is a diagram showing a state in which the vehicle for transporting a trailer according to the present invention is mounted on a luggage carrier of the trailer.

FIG. 6 is a diagram showing a state in which the state in FIG. 5 is advanced.

FIG. 7 is a partial cross-sectional plan view of a traveling body of a conventional self-propelled vehicle.

[Explanation of symbols]

 6,25 Hydraulic Cylinder 7,21 Crawler 8 Hydraulic Work Vehicle 9 Lower Traveling Body 10 Upper Revolving Body 11 Counterweight 12 Extra Long Attachment 19 Crawler Frame 23 Car Body Frame 24, 24 'Beam Frame 26 Vertical Cylinder 33 Trailer 34 Loading Platform

Claims (1)

[Claims] 1. An upper revolving structure is connected to an upper part of a lower traveling structure, and a plurality of booms each having an elongated boom are sequentially connected to a front portion of the upper revolving structure, and a boom tip part on a tip side thereof. The arm is connected to the arm, and a super long attachment with the work tool device connected to the tip of the arm is attached.Besides, a beam-like frame in the left and right direction is attached to the front and rear of the car body frame in the center of the lower traveling body. The beam-shaped frames are respectively provided to extend outward, and the beam-shaped frames are fitted and inserted into the guide holes formed in the left and right crawler frames, and the crawler frames are slidably moved in the left and right directions by a hydraulic cylinder.
In addition, a vertical cylinder is attached to the car body frame in a vertical direction and the vertical cylinder is extended to lift the lower traveling body from the ground, and the front and rear parts of the car body frame are respectively lifted. A plurality of vertical cylinders are detachably attached, and the distance between the front side vertical cylinder and the rear side vertical cylinder is set longer than the bed width of the trailer for vehicle transportation, and the stroke amount of the vertical cylinder is A vehicle body structure for a hydraulic work vehicle, which is set to a substantially height from the ground to the upper surface of the loading platform of the trailer.