JPH0735903Y2 - Anchor column car that can drive anchors on branch lines - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a digging column vehicle used for outside line work in telecommunications facility construction, and particularly for forming a vertical hole when an electric pole is erected. The present invention relates to a digging column vehicle which is an improved hydraulically driven digging column vehicle equipped with an earth auger and is capable of driving a branch line anchor.

[Prior Art] In the external line work of telecommunications facility construction, the work of erection of electric poles for overhead lines and the work of driving branch line anchors to support the electric poles occupy a large weight.

As shown in FIG. 3, conventionally, in the driving operation of the branch line anchor a, first, a resistance plate c of the branch line anchor a is driven into a previously drilled hole b, and a driving cylinder e is applied to the driving portion d of the branch line anchor a. By inserting a rod-shaped driving rod f into the driving cylinder e and striking the driving portion d of the branch line anchor a with the driving rod f, the branch line anchor a is grounded as shown in the figure. It was buried.

However, this driving rod f was made of iron with a weight of about 15 kg and was driven by several people by human power, so the work was heavy labor and the work efficiency was poor.

Therefore, as shown in FIG. 4, the present applicant has proposed a new branch line anchor driving device g in order to solve the above-mentioned drawbacks.

The branch line anchor driving device g generates the vibration by the hydraulic vibration device h and the vibration generated by the hydraulic vibration device h by the branch line anchor a.
Of the hydraulic vibration device and a driving cylinder e for supporting the driving rod i for the hydraulic vibration device, which has been conventionally used. Instead of the driving rod f, the branch anchors a are gradually buried in the ground by the vibration generated by the hydraulic vibration device h.

This hydraulic vibrating device h internally has a drive motor o driven by hydraulic pressure and a vibrating rod p for transmitting the vibration generated by the drive motor o, and the operating oil for driving the drive motor o is a hydraulic source (see FIG. (Not shown) is supplied via a hydraulic hose s. Further, a handle r for gripping by a worker is provided on the upper portion of the hydraulic vibration device h, which facilitates carrying and operation.

On the other hand, a digging column car is used for the upright work of the electric pole. As shown in FIG. 5, this digging column vehicle j is equipped with a boom 1 which is swingable and extendable on the rear chassis k of the driver's seat, and has a vertical hole at the tip of this boom 1 for vertically arranging a utility pole or the like. An earth auger m for excavation is attached detachably. The earth auger m is rotationally driven by hydraulic oil from a hydraulic device h provided on the chassis k.

[Problems to be solved by the invention] By the way, although the hydraulic vibration device h of the branch line anchor driving device g is used while being held by an operator, the vibration by the hydraulic vibration device h is also transmitted to the worker. Then, it has been found that this vibration gives an unpleasant feeling to the worker, and the vibration hinders the health of the worker. Further, the work of standing up the utility pole and the work of driving the anchor of the branch line are inevitably performed at substantially the same time, but there is almost no need for the digging column car j for the work of driving the anchor of the branch line.

Therefore, the present invention has been devised in order to effectively solve the above-mentioned drawbacks, and the purpose thereof is to utilize the function of a digging column vehicle which has not been particularly necessary for the anchorage driving operation of the branch line. By doing so, it is possible to provide a digging column vehicle that can reduce the labor of driving a branch line anchor and prevent the health of workers who perform the work from being hindered, and improve the work efficiency.

[Means for Solving the Problems] The present invention relates to a hydraulically driven hole excavating column vehicle in which an earth auger for forming a vertical hole is attached to an earth auger system removing portion at a boom tip. And a hydraulic vibrating device that is detachably attached to the hydraulic excavator that generates vibration by hydraulic oil from the hydraulic power source of the boring column, and that is attached to the hydraulic vibrating device to drive the branch line anchor into the ground by the vibration. And a branch line anchor driving means.

[Operation] With the present invention configured as described above, after the branch line anchor is engaged with the branch line anchor driving means, the boom is tilted and the branch line anchor is set on the desired ground. It is possible to drive the hydraulic vibration device to apply vertical vibration force to the branch line anchor and drive it into the ground. Therefore, by installing the hydraulic vibration device and the branch line anchor driving means in place of the earth auger for digging in the boom of the digging column truck, the operation of driving the branch line anchor can be easily performed.

[Embodiment] An embodiment of the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 shows a digging column vehicle 1 which is an embodiment of the present invention.

As shown in the figure, the digging column vehicle 1 includes a chassis 2 provided with an outrigger 11 and an operating portion 12, a boom 3 tiltably and telescopically provided on the chassis 2, and a boom 3 at a lower end thereof. The earth auger engagement / disengagement portion 4 provided to face, the hydraulic power source 5 for driving the earth auger (not shown), and the hydraulic vibration device 6 detachably attached to the earth auger engagement / disengagement portion 4.
And a branch line anchor driving means 9 attached to the lower part of the hydraulic vibration device 6.

As shown in FIG. 2, the earth auger engaging / disengaging portion 4 is formed by a swinging member 13 which swings forward and backward of the boom 3 by a wire 15 which is connected to the tip of the boom 3 by a pin and faces downward. A pin hole 16 for inserting a connecting pin 14 for engaging and disengaging an earth auger (not shown) or the like is formed in the lower portion thereof.

Further, the hydraulic vibrating device 6 detachably attached to the earth auger engaging / disengaging portion 4 is obtained by slightly changing the shape of the hydraulic vibrating device h described in the conventional example, and has the same function. More specifically, the casing of the hydraulic vibration device 6 mainly houses a hydraulic drive motor 17 that generates vibration and a piston 23 that transmits the vibration generated by the hydraulic drive motor 17. In addition, a connecting member 18 for fitting into the swinging member 13 for pin connection is formed at the upper end of the casing, and a flange 19 is formed at the lower end thereof. A hydraulic hose 20 for supplying hydraulic oil from a hydraulic power source 5 provided in the chassis 2 is connected to the hydraulic swing device 6.

Further, the branch line anchor driving means 9 attached to the lower end of the hydraulic vibration device 6 is inserted into the driving cylinder 21 and the driving cylinder 21, and a piston which constitutes an output end of the hydraulic vibration device 6. It is mainly composed of a rod-shaped driving rod 22 which is connected to 23 and transmits the vibration from the piston 23 to the branch line anchor 7. This driving cylinder 21 includes a hydraulic vibration device 6 and a branch line anchor 7.
Is for guiding the vertical movement of the driving rod 22, and a flange 24 for holding one end of the coil spring 10 is formed at the upper end thereof, and a female member is provided at the inner periphery of the lower end thereof. A screw is formed so that it can be screwed into the driving head 8 of the branch line anchor 7 having a male screw. The driving cylinder 21 has a flange 24 provided at an upper end thereof and a flange 19 provided at a lower end of the hydraulic vibration device 6 as a coil spring as a universal joint.
Connected by 10. Further, a grip handle 25 for rotating the driving cylinder 21 on the side surface of the driving cylinder 21 in the radial direction thereof and screwing it into the driving head 8 of the branch line anchor 7 or unwinding the grip handle 25 is provided. Has been formed.

Next, the operation of this embodiment will be described.

In order to drive the branch line anchors 7 with this digging tower car 1, first remove the earth auger (not shown) from the earth auger engagement / disengagement portion 4 provided at the tip of the boom 3.
The rocking member 13 of the earth auger engaging / disengaging portion 4 is fitted with the connecting member 18 of the hydraulic vibration device 6, the connecting pin 14 is inserted into the pin hole 16, and the hydraulic vibrating device 6 is engaged with the earth auger engaging / disengaging part 4. To combine. Then, the driving rod 22 of the branch line anchor driving means 9 is inserted into the lower end of the hydraulic vibration device 6, and the flange 19 of the hydraulic oscillating vibration 6 and the flange 24 of the driving cylinder 21 are connected by the coil spring 10. , The hydraulic vibration device 6 and the branch line anchor driving means 9 are connected. Further, branch line anchor driving means 9
The driving head 8 of the branch line anchor 7 is screwed onto the lower end of the driving cylinder 21 to connect the driving cylinder 21 and the branch line anchor 7.

Next, if the hydraulic hose 20 of the hydraulic vibration device 6 is connected to the hydraulic power source 5, the operator operates the boom 3 from the operation unit 12 to set the branch line anchor 7 at a position to be embedded, and then the hydraulic vibration is applied. The hydraulic oil is supplied to the device 6 to drive the hydraulic vibration device 6. Then, the vibration generated by the hydraulic drive motor 17 in the hydraulic vibration device 6 is transmitted from the piston 23 to the driving head 8 of the branch anchor 7 through the driving rod 22 of the branch anchor driving means 9, and by this vibration. The branch line anchor 7 will be gradually buried in the ground. At this time, the operator of the operation unit 12 operates so that the boom 3 is expanded and contracted so that the branch line anchor 7 is buried at a desired position, and is tilted at a predetermined angle.

As described above, in this embodiment, since the hydraulic vibration device 6 is supported by the mechanical force, the working labor is reduced and the vibration generated by the hydraulic vibration device 6 is prevented from being directly transmitted to the worker. Therefore, there is no danger of deteriorating the health of workers.

Next, when the branch line anchor 7 is buried at a predetermined depth, the worker rotates the driving cylinder 21 by the grip handle 25 provided on the driving cylinder 21 and screw it into the driving head 8 of the branch line anchor 7. The driving cylinder 21 that is being used is removed, and the work for driving the branch line anchor 7 is completed. Since the grip handle 25 is provided on the driving cylinder 21, the screwing of the driving head 8 of the branch line anchor 7 and the driving cylinder 21 can be easily released. At this time, since the driving cylinder 21 and the connecting spring 10 are slidably connected, the rotational force for removing the driving cylinder 21 from the driving head 8 of the branch line anchor 7 is equal to the connecting spring 10 and the hydraulic pressure. It does not reach the vibration device 6. Therefore, its removal is easy without applying unnecessary stress during its rotation.

In addition, in the present embodiment, the driving cylinder 21 and the branch line anchor 7 are connected by screwing, but the driving head 8 of the branch line anchor 7 is simply a washing pin at the lower end of the driving cylinder 21. As described above, when the branch line anchor 7 is driven by the driving rod 22, the driving cylinder 21 is lightly clamped by the spring force.
The engagement between the branch line anchor 7 and the driving head 8 is released,
After driving, the driving cylinder 21 may be easily separated from the branch line anchor 7.

[Effects of the Invention] As described above in detail, according to the present invention, the labor for driving the anchor of the branch line is greatly reduced, and the vibration of the hydraulic vibration device for driving is not directly transmitted to the worker. As a result, there is no risk of deteriorating the health of workers. Further, since the existing device is used, the manufacturing cost is low, which is an excellent effect.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the present invention, FIG. 2 is an enlarged view showing in detail a connecting structure from a boom tip of a digger / column to a branch line anchor, and FIG. 3 is a conventional branch line anchor. FIG. 4 is a side view showing a driven state, FIG. 4 is a side view showing a conventional hydraulic vibration device, and FIG. 5 is a side view showing a state in which an earth auger is attached to a digging / construction column vehicle. In the figure, 1 is a digging column, 3 is a boom, 4 is an earth auger engagement / disengagement part, 5 is a hydraulic power source, 6 is a hydraulic vibration device, 7 is a branch line anchor, and 9 is a branch line anchor driving means.

Claims (1)

[Scope of utility model registration request] 1. A hydraulically driven digging column, wherein an earth auger for forming a vertical hole is attached to the earth auger system removal portion at the boom tip, which is detachably attached to the boom auger system removal portion. A hydraulic vibration device for generating vibration by hydraulic oil from a hydraulic power source of the excavation column vehicle, and a branch line anchor driving means for driving the branch line anchor into the ground by the vibration. A branch excavation column car that can be driven into a branch line anchor.