KR960000108B1 - Auger crane - Google Patents

Abstract

In the auger crane mounting a boom(30), a boom head(34), a hook(50), an auger(40) and a winch(100) on the vehicle booly, a high-post(20) equipped with a swivel gear(21) is installed at the center portion of the vehicle body. The 3-stepped boom(30) is installed on the high-post, and the auger(40) is installed at the tip of the boom.

Description

Dry liquor crane

1 is a side view of one embodiment of the present invention.

2 is a plan view of the same example.

3 is a rear view of the same embodiment.

4 is a schematic diagram of the auger fixing device on the three-stage boom employed in the embodiment.

5 is a drawing of a state of expansion and contraction of the three-stage boom of the embodiment;

(a) is stretched in one stage.

(b) is stretched in two stages.

(c) shows the state stretched in three steps.

6 is a schematic diagram of a hook parallelism moving device according to the embodiment;

(a) is a plan view.

(b) is a front view.

7 is a schematic view of the auger fixing device of the embodiment,

(a) is a plan view.

(b) is a front view.

(c) is a side view.

8 is an installation state of the boom fixing pin of the embodiment.

9 is a view showing the installation state of a conventional boom fixing pin in FIG.

* Explanation of symbols for main parts of the drawings

1: dry crane 10: vehicle body

11: operator's seat 12: operation lever

20: high post 30: boom

31: 1st stage boom 32: 2nd stage boom

33: 3-stage boom 34: Boom head

35: fixed pin 36: expansion cylinder

37: extension wire 37: sheave

39: shortening wire 40: auger

50: hook 60: dry

70: dry support 80: horizontal movable sheave

100: winch 110: jack cylinder

120: jack base 130: outrigger

The present invention relates to an improved crane (Auger Crane) to be carried out more quickly and safely, such as dry work and heavy weight traction work.

In general, dry cranes perform dry work or heavy weight towing work at construction sites, and the conventionally proposed ones have many obstacles to performing a wide range of tasks due to their narrow working radius. Since the gap between the boom head and the hook is not made automatically, there is a problem that the winch wire is broken. To prevent this, the expansion lever and the hook position adjustment lever There was an inconvenience to work at the same time.

In addition, in the conventional dry crane, there was a need to separately adjust the position of the hump when performing the auger, and in particular, the auger was not inadvertently shortened to fix the auger due to the lack of the auger's safety device. If not, there is a risk that the auger device may not fall tightly on the boom head side, and the auger may fall sharply during operation.As it is a low post, the excavation work cannot be carried out while the dry loader is loaded. There was a problem.

The present invention has been made in view of the above-mentioned conventional situation, the object is to have a wider work change, to maintain a constant distance between the hook and the boom head, as well as to be able to carry out excavation work during dry loading In addition, to prevent the fall of the auger to provide a dry crane that can further improve the safety of the work.

Hereinafter will be described in more detail through an embodiment shown in the accompanying drawings, the specific content of the present invention for achieving the above object.

That is, the dry crane (1) of the present invention is to increase the working radius significantly by allowing the auger device to be fixed on the three-stage boom 30 as shown in FIG. By doing so, you can work more conveniently.

In addition, the dry crane (1) of the present invention can secure the auger (40) more securely by remaining in the first stage boom (31), if the auger device is not securely fixed to the boom head 34 side as shown in the seventh degree By adopting the high post 20 as shown in FIG. 4, the excavation work is possible even when the dry column 60 is loaded on the dry base 70.

And the dry crane (1) of the present invention by installing a fixing pin 35 on the upper surface of the boom 30 to improve the up and down ability as shown in FIG. 8 so that the maximum up and down force can be exhibited in the boom angle around 30 ° And more balanced ups and downs.

1 to 3 show the outline of the invention.

In the present invention, the operation line 11 and the operation lever 12 for operating each equipment is provided in the upper front of the vehicle body 10 as shown in Figs. 1 and 2, the vehicle body 10 The central portion of the high post 20 is provided with a turning gear 21 is installed at the lower end, the high post 20, the three-stage boom 30, the auger 40, the hook 50, the ladder 90, etc. This is installed.

4 is a schematic view of the auger fastening device on the three-stage boom.

In the present invention, as shown in FIG. 4, the high post 20 supporting the three-stage boom 30 and the auger 40 is employed, whereby excavation work or crane work can be performed even in a dry loading state.

In addition, in the present invention, by fixing the auger 40 to the tip of the three-stage boom 30 through the fixing table 41, as shown in Table 1 below it can have a larger working radius and deeper drilling depth than in the prior art.

TABLE 1

5, there is shown a state of expansion and contraction of the three-stage boom of the present invention.

In the present invention, the first stage boom 31, the second stage boom 32, and the third stage boom 33 can be simultaneously expanded and contracted through one expansion cylinder 36 installed inside the boom 30 as shown in FIG. Bar, a sheave in which the two-stage boom 32 is extended as the expansion cylinder 36 is extended, and the extension wire 37 fixed to the rear upper surface of the first-stage boom 31 is located at the inner end of the two-stage boom 32. It is fixed to the inner and rear ends of the three-stage boom 33 through 38 to extend the three-stage boom 33 proportionally as the two-stage boom 32 is extended.

Conversely, when the boom 30 is simultaneously reduced, the two-stage boom is reduced as the expansion and contraction cylinder 36 is reduced, and the three-stage boom 33 is provided through a shortening wire 39 fixed to the lower and lower end surfaces of the first-stage boom 31. This is proportionally reduced at the same time.

Therefore, according to the present invention, the first stage boom and the second stage boom do not operate at the same time during the expansion and contraction of the boom, and thus, many inconveniences of the conventional use, as well as the use of the telescope cylinder (Telescope Cylinder), the weight of the boom It is possible to eliminate the conventional problems that caused the increase and qualification rise.

6 shows a schematic diagram of the hook balancer of the present invention.

In the present invention as shown in FIG. 6, the horizontal movable sheave 80 is installed on the two-stage boom 32, and the horizontal movable sheave 80 is connected to the wire 101 of the winch 100.

Accordingly, when the boom 30 is expanded and contracted, the horizontal movable sheave 80 may horizontally move the two-stage boom 32 in the front-rear direction while maintaining a constant distance between the hook 50 and the boom head 34. Thereby, the position of the hook 50 can be used without adjusting separately.

According to the hook balancer of the present invention, the gap between the hook 50 and the boom head 34 may not be automatically adjusted, thereby solving the conventional problem that the winch wire is cut or broken.

7 is a schematic view of the auger device of the present invention.

In the conventional crane, if the auger 40 is inadvertently fixed when fixing the auger 40, there is a high possibility that a safety accident may occur due to the auger 40 falling rapidly. In the present invention, the boom 30 is fixed when the auger 40 is fixed. This is not completely shortened, as well as the auger device to remain in the first stage boom 31 if it is not securely fixed to the boom head 34 side it is possible to prevent the conventional risk in advance.

That is, in the present invention, as shown in FIG. 7, the boom head 34 is completely shortened, pushing the end of the rod assembly 90, and the fixing state of the fixing hook 91 attached to the rod assembly 90 is released. Auger 40 is lowered.

And when the excavation work is to be carried out through the auger 40, the operation lever 12 located in front of the operator seat 11 may be used.

In addition, when the auger 40 is fixed on the boom 30, the fixed hook 91 is fixed to the boom head fixing pin 92 after the work in the order described above, and when the boom 30 is extended, the boom 30 The auger 40 is fixed on) so that a wider range of excavation work can be performed.

8 is a diagram showing the installation state of the boom fixing pin of the present invention.

In general, the crane requires the maximum undulation force when the boom angle is 30 ° to 80 ° in relation to the strength and safety of the boom 30.

However, most existing cranes, as shown in FIG. 9, have a boom fixing pin 35 'installed on the lower surface of or around the boom 30', so that the maximum undulation force is applied when the boom angle is negative. There was a problem that the lift (Lift) is generated to damage the structure, such as boom (30 ').

Therefore, the present invention has been provided with a fixing pin 35 on the upper surface of the boom 30 to solve the conventional problem.

In the drawing, reference numeral 110 is a jack cylinder, 120 is a jack support, 130 is an outrigger, 140 is a tool box, 150 is a work lamp.

Referring to the method of performing various operations through the dry crane (1) of the present invention configured as described above are as follows.

That is, in order for the driver to operate the dry crane 1 of the present invention, the operator first moves the vehicle body 10 to a place to be worked on, and then operates the operation lever 12 without being in the operator seat 11.

Of course, for safer operation in the above operation by operating the outrigger 130 and the jack cylinder 110 through the operating lever 12 to maintain the vehicle horizontally of course it must be firmly fixed to the ground.

When the vehicle is firmly supported on the ground, excavation work by the auger 40 and heavy load traction work by the boom 30 and the hook 50 can be performed through the operation lever 12 of the operator seat 11. do.

Looking at the example of the heavy weight towing operation, first, the outrigger 130 and the jack cylinder 110 is extended by using the equipment operation lever 12 to maintain the horizontal state of the vehicle using the operation lever 12 As the equipment driver intends to operate, the boom 30 and the hook 50 are moved, and the towing operation can effectively tow or move the transformer and facilities and other heavy objects.

Next, referring to an example of operating the auger 40, first, in order to operate the auger 40, the boom 30 should be expanded and contracted as much as possible using the operation lever 12. When the auger 40 is slowly rolled up, the fixing device moves downward, and when the operation lever 12 is turned "right", the auger 40 is raised while being turned right.

After the auger is lowered, if the auger 40 continues to turn right, the auger 40 is automatically removed from a stopper (not shown) with a containment wire, and the end of the auger 40 is moved to a position to be excavated. Lowering the boom 30 and lowering the boom 30 while turning the auger 40 right until it touches the ground is able to sell holes in the ground.

When the boom 30 is lowered in the above, it is of course preferable to adjust the excavation speed with an accelerator (not shown) located in the operator's seat 11 in consideration of the soil conditions.

As described above, the dry crane 1 of the present invention can smoothly perform the long distance excavation work and the towing and moving work of the heavy dry crane, which can not be performed by the conventional dry crane, and perform the dry work more safely and effectively. While being able to do so, the manpower required for the work can be greatly reduced, and the workability and productivity of the construction site can be greatly improved through safety, economical efficiency, and shortening of working time.

Claims (4)

In the case where the boom 30, the boom head 34, the hook 50, the auger 40, the original 100, and the like are mounted on the vehicle body 10, the high turning gear 21 is installed at the lower end thereof. The post 20 is installed at the center of the vehicle body 10, the high post 20 is provided with a three-stage boom 30, and the auger 40 is installed at the tip of the boom 30. A dry crane characterized by the above. The horizontal sheave 80 is installed on the two-stage boom 32 of the boom 30, and the horizontal sheave 80 is connected to the wire 101 of the winch 100. Gunju crane to do. The dry crane according to claim 1, wherein a rod assembly (90) having a fixed hook (91) is provided on the boom (30). The dry crane according to claim 1, wherein a fixing pin (35) is provided on an upper surface of the boom (30).