JPH0540355U - Outriggers for turning tracked vehicles - Google Patents

Abstract

(57) [Summary] [Purpose] A work vehicle that does not tilt when transporting, installing, or removing long steel materials such as H-shaped steel. [Structure] In a swing type tracked vehicle in which a revolving structure is provided above a lower traveling structure, and a bending type working machine is provided above the revolving structure so as to undulate in the front-rear direction. An outrigger-2 is provided in the front-rear direction on the outer side, and the hydraulic cylinder 3 is attached to the side surface of the track frame 1 in the front-rear direction, and the rod 3a of the hydraulic cylinder 3 and the outrigger- are mounted.
2 is connected via ball joints 4 and 5 so that the outrigger-2 is rotatable in the vertical direction. [Effect] Even if an actuator having a long and thin shape such as a hydraulic cylinder is mounted in the front-rear direction of the vehicle body, the outrigger can be changed in the up-down direction, and the limited space for the undercarriage is limited. It can be installed inside. Also,
Stroke of hydraulic cylinder by adoption of ball joint
Since sufficient clearance can be taken, the vehicle width when the outrigger is stored can be made as small as possible.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a swivel work vehicle equipped with a gripping device used for transportation, installation and removal of long steel materials in a narrow construction site such as underground where there is not enough space in civil engineering and construction work. The present invention relates to an outrigger of a swing type tracked vehicle for the purpose of stabilizing a vehicle body.

[0002]

[Prior Art]

 Conventionally, when a crane car is used to transport, install, and remove long steel materials such as H-shaped steel in a small space such as underground construction, the space of the crane car is limited and the operation efficiency of the crane car is limited. Is significantly hindered and may cause harm to other workers. In particular, when installing long steel materials in high places, workers are required to go up to high places and perform lifting work with dangerous work. As a solution to such a problem, as shown in FIG. 5, there is a gripping device for a turning type tracked vehicle which the applicant previously applied for. According to this, the turning type tracked vehicle 21 holds the H steel material 25 with the gripping device 24 provided at the tip of the working machine including the boom 22 and the arm 23 facing downward (solid line). It shows a state in which the gripping device 24 is rotated sideways to grip the H steel material 25 and lifted vertically to a high position (two-dot chain line). However, the solid line 2 is used for the work of transporting and removing the H steel material 25. The state of the dashed line will be repeated all the time. In the figure, 26 is a revolving structure, 27 is a lower traveling structure, 28 is a crawler track, and 29 is a track frame.

[0003]

[Problems to be solved by the device]

 Therefore, in the case of the swing-type tracked vehicle as shown in Fig. 5, the problem in the case of the crane vehicle can be solved, but the swing-type work vehicle itself may lean to the left and right due to handling heavy steel material. There was a risk of trouble.

In view of the above, the present invention provides an outrigger for a swing-type tracked vehicle that enables a work vehicle to work without tilting when transporting, installing, or removing a long steel material such as an H-shaped steel. The purpose of the present invention is to eliminate the drawbacks of the prior art.

[0005]

[Means for Solving the Problems]

 As a means for solving the above-mentioned problems of the prior art, the present invention provides a swivel body provided on an upper part of a lower traveling body, and a bending type working machine provided on the upper part of the swivel body so as to undulate in the front-back direction. In a tracked vehicle, an outrigger is provided outside the truck frame of the undercarriage in the front-rear direction, a hydraulic cylinder is attached to the side surface of the track frame in the front-rear direction, and the rod of the hydraulic cylinder and the outrigger are attached. It is characterized in that the outrigger is rotatable in the up-down direction by connecting-and- via a ball joint.

[0006]

[Action]

 According to the above configuration, when the swing-type tracked vehicle is working, the hydraulic cylinder is extended and the outrigger is grounded, so that the grounding area of the vehicle is increased and the vehicle body is stabilized, so that the load of the working machine is lifted. It is possible to prevent the occurrence of troubles such as tilting the vehicle body with respect to the above. Further, when retracted, the outrigger can be folded toward the vehicle body by contracting the hydraulic cylinder.

[0007]

【Example】

 1 is a perspective view showing an embodiment of an outrigger of a swing type track-equipped vehicle according to the present invention, FIG. 2 is a rear view of FIG. 1, FIG. 3 is an operation state diagram of FIG. 1, and FIG. 4 is A of FIG. FIG.

Hereinafter, the present invention will be described with reference to an embodiment shown in FIGS. The present invention provides a swing-type tracked vehicle in which a revolving structure (not shown) is provided on the upper part of a lower traveling structure, and a bending type work machine is provided on the upper part of the revolving structure so as to undulate in the front-back direction. An outrigger-2 is provided outside the track frame 1 in the front-rear direction, a hydraulic cylinder 3 is attached to the side surface of the track frame 1 in the front-rear direction, and a rod 3a of the hydraulic cylinder 3 and the outrigger-2 are attached. The outrigger-2 is configured so as to be rotatable in the vertical direction by being connected through ball joints 4 and 5.

In FIG. 1, brackets 6 and 7 are fixed to the outer surface of the track frame 1 (of the undercarriage of the swing-type tracked vehicle as shown in FIG. 5) so as to be spaced apart from each other and fixed to the bracket 6. Is a base on the bottom side of the hydraulic cylinder 3 that is swingable in the front-back direction with respect to the track frame 1 by a pin 8 and is bent at a substantially right angle on the bracket 7 and is opposed at a constant interval. The right-angled intersections of the lever members 9 are attached by the pins 10 so that the lever members 9 can be rotated with respect to the track frame 1. The tip of the rod 3a of the hydraulic cylinder 3 is sandwiched by one side of the lever member 9 and is joined by a pin 11. The outrigger-2 is formed in a substantially flat plate shape having a desired length, and a pair of brackets 12 and 12 are fixed to a surface which is an upper side when grounded from the center in the longitudinal direction at regular intervals and penetrate the both brackets 12 and 12. The pins 13 are provided so that their ends project outward from the bracket 12. Links 14 and 14 each having a hole at the center and at the end are fitted on the outside of the pin 13, and the holes at the ends on the other side are fitted to the track frame 1 side. The pair of brackets 15 and 15 are connected by pins 16 respectively. Further, the links 14 are connected to each other by a shaft 17 having both ends fitted in a central hole, and a spherical portion is provided at the center of the shaft 17 to form a ball joint 5. One end of a rod 18 is externally fitted to the ball joint 5 so that the rod 18 has a left-right degree of freedom. The other end of the rod 18 is externally fitted to the ball joint 4 (see FIG. 4) that connects the other sides of the pair of lever members 9 to each other so that the same degree of freedom in the horizontal direction can be obtained. .. In the figure, 19 is a crawler track.

Next, the operation will be described. When the outrigger-2 is grounded, when the rod 3a of the hydraulic cylinder 3 is extended, one end of the lever 9 is pushed and the lever 9 rotates about the pin 10. Therefore, the other end of the lever 9 also rotates in the same direction, but the ball joints 4 and 5 are engaged with the rod 18, whereby the direction of force application is changed and the rod 18 is pushed down. Works. Therefore, the shaft 17 is pushed down, the link 14 rotates about the pin 16, and the outrigger-2 is grounded. If the outrigger-2 is not needed and the hydraulic cylinder 3 is operated to retract, the above movement is reversed and the outrigger-2 moves up and retracts so that the ground contact surface is on the outside at the position shown in FIG. To be done. In addition, this storage does not hinder the running or working of the vehicle and can be stored compactly.

[0011]

[Effect of the device]

 INDUSTRIAL APPLICABILITY As described above, the present invention provides a swing-type tracked vehicle in which a swing structure is provided above a lower traveling structure, and a bending type work machine is provided above the swing structure so as to undulate in the front-back direction. An outrigger is provided outside the track frame of the lower traveling body in the front-rear direction, a hydraulic cylinder is attached to the side surface of the track frame in the front-rear direction, and a rod of the hydraulic cylinder and the outrigger are mounted on the bottom frame. Since the outrigger can be rotated in the vertical direction by connecting it through a vertical joint, the outrigger can be moved up and down even if an actuator with a long and thin shape such as a hydraulic cylinder is mounted in the vehicle longitudinal direction. The direction can be changed, and it can be installed in a limited space as the undercarriage. Further, since the ball joint is adopted, the stroke of the hydraulic cylinder can be sufficiently taken, so that there is an advantage that the vehicle width when the outrigger is stored can be made as small as possible.

[Brief description of drawings]

FIG. 1 is a perspective explanatory view showing an embodiment of an outrigger of a tracked vehicle according to the present invention.

FIG. 2 is an explanatory view showing the back surface of FIG.

FIG. 3 is an explanatory diagram showing an operating state of FIG. 1.

FIG. 4 is an explanatory view showing a cross section taken along the line AA of FIG.

FIG. 5 is an explanatory diagram showing an example of a working state in the swivel work vehicle of the prior application.

[Explanation of symbols]

 1 Track frame 2 Outrigger 3 Hydraulic cylinder 4,5 ball joint

Claims (1)

[Scope of utility model registration request] 1. A revolving tracked vehicle in which a revolving structure is provided above a lower traveling structure, and a bending type working machine is provided on the upper part of the revolving structure so as to undulate in the front-rear direction. An outrigger is provided outside the frame in the front-rear direction, a hydraulic cylinder is attached to the side surface of the track frame in the front-rear direction, and a rod of the hydraulic cylinder and the outrigger are connected via a ball joint. The outrigger of the turning type tracked vehicle is characterized in that the outrigger is rotatable in the vertical direction.