JPH0194189A - Rotary drive for boring machine - Google Patents

Abstract

PURPOSE: To enhance drilling efficiency by fully pivoting and pushing a casing tube into the ground, then passing a drilling rod into the fully pivoting carriage via a yoke, and fully pivoting the fully pivoting carriage. CONSTITUTION: A casing tube 10 is passed into a guide hole in a fully pivoting carriage 5 and is fully pivoted by the fully pivoting motor 6 of a rotary drive via full pivoting speed reduction mechanisms 7a, 7b so as to be pushed into the ground. Once the pushing-in of the tube 10 has reached the desired stroke length, the tube 10 is released and the rotary drive is raised. A yoke 11 is fitted into the guide hole and the rotating rod 15 of a drilling machine 16 is passed into a rod drive hole in the yoke 11. When the motor 6 is further driven to fully pivot the fully pivoting carriage 5, the rod 15 and the drilling machine 16 are driven for rotation via the yoke 11 to drill soil in the tube 10.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a rotary drive device for a boring machine characterized in that the rotary drive device for a casing tube of the boring machine can also be used as a rotary drive for an excavator. It is something.

(Prior Art) A conventional example of a rotary drive device for a boring machine is explained with reference to Fig. 5.6.
b) The driving device main body (3) is attached to the front chassis (IC) of the boring machine (1) equipped with etc. via a lifting device (2) such as a push jack, and the driving device main body (3) is rotated. The full swing table (5) is arranged so as to be fully swingable via the bearing (4), and the full swing speed reduction mechanism (binion 7a, external tooth The full swivel base (5) is fully rotated via the gear 7b), and the casing cheese α is inserted and clamped by the clamp mechanism (8) disposed on the lower side of the full swivel base (5). It has a rotary drive device that rotates and pushes the casing tube Ql into the ground Φ, and prevents the collapse of the hole wall by rotating and pushing the casing tube Ql into the ground, and removes the earth and sand inside the casing tube.・The structure is such that excavation is carried out using a magnetic grab (not shown) and polling is used to remove soil.

(Problems to be Solved by the Invention) The rotary drive device of the conventional boring machine is a mechanism exclusively for rotating and pushing the casing tube, and the drive mechanism of the excavator for excavating and discharging earth inside the casing tube is The rotary drive mechanism is extremely complicated, and there is a limit to the driving force of the excavator, resulting in problems such as insufficient excavation driving force and low excavation efficiency.

(Means for Solving Problems) The present invention is a rotary drive device for a boring machine developed to solve the above-mentioned problems. A full swivel base having a tube guide hole, a rotational drive mechanism for the full swivel base disposed in the driving device main body, and a clamp mechanism attached to the full swivel base and having a clamp hole for the casing tube. A rotary drive device for a boring machine, which is configured to have a yoke that is removably fitted into the guide hole of the full rotation base and has a rod drive hole through which a rotary rod of an excavator is inserted and rotationally driven, so that the yoke can also be used as an excavator. By inserting the rotating rod of the excavator into the casing tube guide hole of the full swivel table or the casing tube ramp hole of the clamp mechanism, and removably fitting the rotation drive yoke, the casing tube The powerful rotational driving force can be used to drive the rotation of the excavator, thereby significantly simplifying the rotational drive mechanism and improving excavation efficiency, thereby solving the above-mentioned problems.

(Function) The casing tube is inserted into the guide hole of the full swivel base and guided, and the casing tube is also inserted into the clamp mechanism of the clamp mechanism and clamped. The casing tube is rotated and pushed into the ground by the full rotation drive of the swivel base and clamp mechanism, and a yoke is fitted into the guide hole of the swivel base, and the rotating rod of the excavator is inserted into the rod drive hole of the yoke. By inserting the casing tube into the casing tube, the full rotation driving force of the full rotation table is transmitted to the rotating rod and the excavator through the yoke 7, and the excavator is driven by the strong rotational driving force for rotating the casing tube. The earth and sand inside the casing chisel are efficiently excavated by the smooth rotation drive.
It is also used to drive the rotation of the casing cheep and excavator.

Further, even if the yoke is fitted into the clamp receptacle of the clamp mechanism attached to the full swivel base, the rotary rod of the excavator is driven to rotate in the same way, and the same effect can be obtained.

(Embodiment) An embodiment of the present invention is shown in FIGS. 1 to 4, and shows a front chassis of a boring machine (1) (see FIG. 4) equipped with a crawler (1a), a power unit (1b), etc. (IC)
A drive device main body (3) that is raised and lowered via a lifting device (2) such as a push jack is attached to the drive device main body (3), and a full swivel base (5 )
The main body of the drive device (3) is arranged so that it can be rotated completely.
The full rotation deceleration mechanism (
pinion 7a, external gear 7b, etc.)
) is fully rotated, the casing tube αQ is penetrated and clamped by the clamping mechanism (8) provided under the full rotation table (5), and the casing tube αQ is pushed into the ground while rotating. In the rotary drive device of a boring machine equipped with a rotary drive device, the rotary rod α9 of the excavator ←e is removably fitted into the guide hole (5a) of the casing tube provided on the full swivel table (5). It is a rotary drive device for a boring machine that also serves as an excavator, and is equipped with a yoke aυ having a rod drive hole (ll&) that is inserted and rotated.

To explain the yoke←D in more detail, especially the second,
As shown in Figure 3, the large diameter head (llb) and the cylindrical part (110
) is provided with a polygonal (square in the illustrated example) rod drive hole (ll&) in the center, and a plurality of protrusions (llcl) (lid) protruding from the circumferential surface of the cylindrical part (1ie) are fully rotated. The notch hole (5b) provided in the guide hole (5a) of the stand (5)
) (5b), and when the yoke σD is fitted from above into the guide hole (5a) of the full swivel base (5) as shown in the figure, each protrusion (11d) fits into each notch hole. (5b
) to prevent relative rotation, and the rod drive hole (lla) has a polygonal cross section (square in the illustrated example).
Rotating rod a! 19 is inserted so that it can only slide and is driven to rotate.

The embodiment of the present invention has the above-mentioned structure, and its operation will be explained in detail.As shown in FIG.
) into the guide 5'C (5a) of the casing tube α [
The casing tube←Q is inserted into the clamp hole (8a) of the clamp mechanism (8) and clamped, and as the entire rotary drive device is lowered by the lifting device (2), it is rotated. The motor (6) rotates the full swivel table (
When the casing tube a (I) is decelerated and fully rotated, the casing tube a (I is fully rotated, that is, rotated) through the clamp mechanism (8) attached to the full swivel base (5), and the casing tube a ( 1■ is pushed into the ground while rotating.

When the pushing of the casing tube 0 reaches a desired stroke length, the casing tube 1 is released by the clamp mechanism (8) and the rotary drive device is raised.
-1 Fit the yoke (11) into the guide hole (5a) of the full swivel base (5) of the raised rotary drive device. The yoke α
υ is the protrusion (1
14) is fitted and rotated, that is, rotationally driven, together with the swivel base (5), and the rotating rod a of the excavator is inserted into the polygonal rod drive hole (lla) provided in the yoke αυ.
Average.

(same shape) is penetrated, and when the full swivel base (5) is decelerated by the swing motor (6) via the full swing deceleration mechanism (7a17b) and rotated, that is, rotated, the full swivel base (5) is
) rotates the rotating rod (L!9) and the excavator σe through the yoke (11) with a strong rotational driving force as in the case of the casing tube holder, and the excavator αQ removes the earth and sand in the casing tube holder. Excavated efficiently.

As shown in Fig. 4, the rotating rod α is suspended by a wire rope @ which is operated by being paid out from above the leader C11) of the crane, and is lowered by its own weight as the wire rope (2) is paid out. While the digging force is applied, the excavator (16)' rises through the rotating rod (16) by winding up the wire rope (2 ropes) and excavated soil is removed.

In the above embodiment, the yoke αυ is fitted into the guide hole (5a) of the full swivel base (5), but as shown in FIG. It is also possible to have a configuration in which the yoke Gυ is removably fitted to the clamp mechanism (8), and in the case of the yoke Gυ, the full swivel base (
The entire turning or rotational driving force of 5) is transmitted to the yoke C31+ via the clamp mechanism (8), and other effects are the same as in the previous embodiment.

In addition, when the yoke αυ is used, a spacer (not shown) is provided in the clamp hole (8a) of the clamp mechanism (8) to guide the rotary rod (slidingly and rotatably). When using the yoke C31), the yoke αυ is not necessarily required (it is also possible to provide a spacer (not shown) having a guide hole for the rotating rod). It is.

Furthermore, although the excavator (1e) in the illustrated embodiment is a rotary/thicket type, the present invention can be applied to excavators with various mechanisms such as a screw auger.

In addition, the rotary drive device can be excavated with only an excavator without using a casing tube, or the rotary rod can have a polygonal cross section by attaching an appropriate clamp to the rod drive hole of the yoke. Not necessarily necessary.

(Effects of the Invention) The present invention has the above-mentioned configuration, and the casing tube is inserted into the guide hole of the full swivel base, and the casing tube is inserted into the clamp hole of the clamp mechanism and clamped to make the full swivel. In other words, in addition to the rotational drive that rotates and pushes into the ground, the yoke is fitted into the guide hole of the swivel base, and the rotating rod of the excavator is inserted and placed into the rod drive hole of the yoke. The strong rotational driving force increases the rotational driving force of the rotating rod and excavator, and the performance and efficiency of excavating earth and sand inside the casing tube are significantly improved.

Furthermore, by adding a simple mechanism, the rotation drive device of the casing chisub can be used as the rotation drive device of the excavator.
The rotary drive is greatly simplified, resulting in significant cost savings.

Although the present invention has been described above with reference to embodiments, it goes without saying that the present invention is not limited to such embodiments, and that various design modifications can be made without departing from the spirit of the present invention. .

[Brief explanation of the drawing]

Fig. 1 is a longitudinal mechanical diagram showing an embodiment of the present invention, Fig. 2 is a plan view of the 11th part in Fig. 1, Fig. 3 is a lower perspective view of the yoke in Fig. 1, and Fig. 4 is a main view of the main body. FIG. 5 is a side view of the entire structure showing the state of excavation according to the invention. Drive unit body 5: Full swivel base 5a guide hole 5, 7a, b: Rotation drive mechanism 8
: Clamp mechanism 8a: Clamp hole 10: Casing tube 11, 31: Yoke 11a: Rod drive manipulator 5: Rotating rod 16: Excavator Fig. 1

Claims (2)

[Claims] (1) A full swivel base that is fully rotatably disposed in a drive unit body that is raised and lowered and has a guide hole for a casing tube, a rotational drive mechanism for the full swivel base that is disposed in the drive unit body, and In a rotary drive device for a boring machine, which is attached to a swivel table and is equipped with a clamp mechanism that has a clamp hole in the casing tube, the rotary rod of the excavator is inserted into the guide hole of the full swivel table, and is removably fitted into the guide hole of the swivel table. A rotary drive device for a boring machine, characterized in that it is equipped with a yoke having a rotatably driven rod drive hole and can also be used as an excavator. (2) The first aspect of the present invention is characterized in that the yoke having a rod drive hole through which a rotating rod of an excavator is inserted and rotationally driven is removably fitted into the clamp hole of the clamp mechanism. Rotary drive device for the boring machine described in .