JPS624610Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an earth removal device for removing earth and sand adhering to an auger screw during excavation work using an earth auger.

Conventionally, soil clods attached to the auger crew were removed directly using a shovel, etc., but this required an extremely large amount of labor for the worker, so we developed an earth removal device that completely relieves the burden on the worker. Various proposals have been made. To do this, it is necessary to utilize the rotation of the auger screw and raise and lower the earth removal device in conjunction with this rotation. Naturally, guide means and suspension means for raising and lowering the earth removal apparatus are required. Therefore, the device is complicated and is not suitable for practical use.Moreover, the clods of soil on the surface of the auger screw adhere to the surface of the auger screw in random sizes, strengths and weaknesses, and it is difficult to simply remove them with a scraper installed at the required position. The practical disadvantage is that it is not possible to reliably remove soil from the screw surface, and that the scraper can be damaged and dangerous if it is overloaded.

In contrast, with the present invention, rather than completely relieving the burden on the worker, the burden on some workers is reduced by delicately operating the soil on the ground to remove the clods of soil that adhere to the screw surface. This is what you want to make sure to remove.

An embodiment of the present invention will be described below based on the drawings. FIG. 1 shows an earth auger, in which 1 is a traveling body, 2 is a rotating body placed on the traveling body 1, and 3 is a rotating body placed on the traveling body 1. is the support arm 4 at the front of the rotating body 2
5 is a back stay that supports the leader 3; 6 is a guide rail fixed to the leader 3 along the leader 3; 7 is an auger machine that is slidably mounted on the guide rail 6; 8 is a backstay that supports the leader 3; A lifting means for suspending the auger machine 7, an auger screw 9 hangingly connected to the auger machine, and 1
0 is an earth removal device according to the present invention, which is installed at a location where it can be easily operated on the ground and does not interfere with the operation of the auger, especially at the tip 20 of the support arm 4 on the revolving structure 2. has been done.

As shown in FIGS. 2 and 3, this earth removal device 10 has a pair of rope guiding brackets 21, 21 attached to both sides of the tip 20 of the support arm 4 so as to be openable and closable. One end of the mounting frame 11 is mounted and fixed, and a cylindrical support rod 12 having a required length is vertically disposed near the other end of the frame 11. A short cylindrical guide sleeve 13 is fitted so as to be rotatable and slidable in the vertical direction, and both ends of the support rod 12 are fixed to the mounting frame 11 via connecting pieces 14, 14. A rectangular cylindrical member 16 for attaching a soil scraping rod is fixed to one side of the guide sleeve 13, and a square cylindrical member 16 for attaching the soil scraping rod is fixed to one side of the guide sleeve 13, and a cylindrical member 16 with a bottom is fixed to the other side of the sleeve 13. A cylindrical member 17 for attaching an operating rod is fixed, and one end portion of each of a square bar-shaped soil scraping rod 18 and a cylindrical operating rod 19 that can be engaged with the auger screw 9 is attached to these members 16 and 17. It is made by fitting and fixing with screws etc.

When operating the soil removing device 10 having the above-mentioned configuration, when pulling up the auger screw 9 after underground excavation, the operating rod 19 is operated to move the soil scraping rod 18 to the screw 9a. By applying it to the tooth surface, the earth and sand adhering to the screw 9a as the auger shaft 9b rotates is scraped off and removed by the earth scraping rod 18. The guide sleeve 13, soil scraping rod 18, and operating rod 19 of this earth removal device 10 are in the position shown by the dashed-dotted line in FIG. It is set in the position shown.
In the operation of this soil removal device 10, if the auger screw 9 is pulled up at the same speed as the pitch speed of the screw 9a (the feed speed of the screw 9a accompanying the rotation of the auger shaft 9b), the soil removal device 10 The rod 18 is stationary at a fixed position (for example, the position shown by the dashed line in FIG. 2), but if it is pulled up at a speed faster than this pitch speed,
The soil scraping rod 18 is pushed up while performing the scraping operation, so that the guide sleeve 13 to which the soil scraping rod 18 is attached slides upward along the support rod 12. In this case, this guide sleeve 13
is pulled up to the upper end of the support rod 12, operate the operating rod 19 to move the soil scraping rod 18 to the screw 9.
Remove the guide sleeve 13 from the support rod 1 again.
2. All you have to do is lower it to the lower end.

In addition, the soil scraping rod 18 is connected to the screw 9.
If it gets caught in the a, the reaction may cause a serious danger, so it is desirable to use a material that breaks easily, such as wood.

As explained above, the earth removal device of the present invention holds the support rod vertically near the ground contact part of the auger screw, and the guide sleeve is fitted to the support rod so as to be rotatable and slidable in the vertical direction. A soil scraping rod that can be engaged with the auger screw is attached to one side of this sleeve, and an operating rod is attached to the other side, so that the soil scraping rod can freely move up and down via the guide sleeve. Therefore, even if the pulling speed of the auger crew is faster than the pitching speed, the soil scraping rod can follow the rise of the auger crew, ensuring safety in soil removal work and preventing damage to the equipment. be able to.

In addition, the soil scraping rod and the operation rod that move integrally with it are attached using the tip of the leader support arm, so the structure is simple and firmly supported, and the operation rod can be moved to the leader. The guide sleeve attached to the tip of the support arm is used as a fulcrum, and the soil removal rod is operated by the action of a lever, making it possible to easily remove soil without requiring much force. Moreover, since the work is carried out near the ground contact part of the auger screw, there is no danger of the removed soil falling and injuring the worker.

In particular, in the case of the present invention, since the soil scraping rod is directly operated by the operator using the operating rod to remove the clods of soil that have adhered to the auger screw, the soil clods adhere to the screw surface randomly and in a weak and strong manner. This has the practical effect of being able to reliably remove contaminated soil with little force while delicately manipulating it.

Furthermore, in the case of the present invention, the soil scraping rod is detachably attached to the guide sleeve, so if the soil scraping rod becomes deformed, broken, or damaged and becomes unusable. Since the soil scraping rod can be easily removed and only the soil scraping rod needs to be replaced, it is extremely advantageous economically.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is a general schematic diagram of an earth auger, FIG. 2 is a side view of an earth removal device, and FIG. 3 is a plan view of the same. 3... Leader, 4... Support arm, 9... Auger screw, 10... Earth removal device, 11... Mounting frame, 12... Support rod, 13... Guide sleeve, 15... Holder, 18 ...Earth scraping rod,
19...Operation rod.

Claims (1)

[Scope of utility model registration request] In an earth auger in which a leader 3 is upright supported by a support arm 4 on a revolving body 2 such as a crawler crane, and an auger screw 9 is connected to an auger machine 7 hanging down to an auger machine 7 which is installed to be able to move up and down along the leader, the above-mentioned A support rod 12 of a required length is fixed vertically to the tip of the support arm 4 near the grounding part of the auger screw, and a guide sleeve 13 is rotatably attached to this support rod and slidable in the vertical direction. The earth auger is equipped with a soil scraping rod 18 which is movably fitted in the guide sleeve, and a soil scraping rod 18 that can be engaged with the auger screw is detachably attached to one side of the guide sleeve, and an operating rod 19 is attached to the other side. Soil equipment.