JPS634774Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a crushing device for crushing buildings.

A crushing device is a device that is equipped with a crusher that crushes or cuts structures by opening and closing claws using a hydraulic cylinder, etc., at the end of a freely rotating arm, etc., and demolishes unnecessary structures. Used in cases etc. Conventionally, this type of crushing equipment, especially when used for work in high places, has been able to rotate the boom B, sub-arm C, main arm D, and crusher E from the tip of the hoist body A, as shown in Figure 1. It is constructed by connecting them sequentially. The crushing device with this configuration is
Although crusher E can be moved to a wide range of front and back,
On the other hand, if the crusher E is moved too much, there is a drawback that the entire device loses its balance in the front-back direction and falls over. Therefore, the operator must limit the range of movement of the crusher E and must constantly balance the entire apparatus while operating it, which is rather inconvenient.
Furthermore, if the ground below the hoist body A is inclined in the left-right direction, even if the crusher E is lifted straight upward, there is a possibility that the crusher E will lose its balance in the left-right direction and fall. On the other hand, in order to move the crusher E up and down, the boom B, the sub arm C, and the main arm D must be individually operated to make complicated movements, which makes the operation complicated. Furthermore, this configuration has a complex structure with a large number of links, and since a large bending load acts on each connection point, it must be manufactured robustly, resulting in a large weight. This has the disadvantage that the stability is further impaired because it is supported.

The present invention has been made in view of the above points, and aims to provide a crushing device that is stable even when working at high places, is easy to operate, and has good workability.

An example of the present invention will be described based on the drawings.
In Fig. 2, a cylindrical or prismatic pillar 1 whose lower end is grounded on the ground G is pivoted at the center by two backstays 2, 2, and is erected almost vertically with three-point support. . That is, both backstays 2, 2 are constructed by connecting two fluid pressure cylinders 2a, 2b, respectively, to one intermediate stay 2c in a straight line, and the upper cylinders 2a, 2a, respectively, are connected to the rear of the column 1. At point P in the center of the side,
The lower cylinders 2b and 2b are respectively pivotally supported at points Q and R of the rear wing portions of the hoist body 3. A bracket 1a is protruded from the side of the column 1 at a point S below the point P, and an adjustment cylinder 4 is provided between the bracket 1a and the tip of the hoist body 3 for adjusting and moving the column in the vertical direction.
is pivotably mounted at both ends. Therefore, the vertical position of the support column 1 is determined by the adjustment cylinder 4.
The lower end of the column 1 is adjusted by the back stays 2, 2, so that the lower end of the column 1 is grounded on the ground G.
Even when the support column 1 is inclined, the support column 1 is erected almost vertically.

On the other hand, as shown in FIGS. 2 and 3, the pillar 1
A well-known guide rail 5 is provided in the longitudinal direction of the front side of the
is attached, and an engaging arm 7 provided on the rear surface of the lifting platform 6 is engaged with this to hold the lifting platform 6 so as to be movable up and down along the guide rail 5. Further, as shown in FIG. 4, channel material may be used for the guide rails 5a, 5a, and in this case, an appropriate number of guide rollers 7a, 7b, 7c pivotally attached to the lifting platform 6.
may be constructed so as to be in rolling and sliding contact with the guide rails 5a, 5a. In either case, if the lifting platform 6 is designed to be removable from the support 1, it can be removed when not in use, making transportation and storage convenient. By the way, in the vertical direction of the lifting platform 6, there are pulleys 6b and 6c attached to the upper and lower surfaces of the lifting platform 6, respectively.
A lifting rope 8a and a pulling down rope 8b are hung through. Pulling rope 8a
One end is fixed to the upper end of the support column, the other end is wound around a winch (not shown) on the hoist body 3 via the top sheave 9a and pulley 9b, and one end of the lowering rope 8b is attached to the tip of the hoist body 3. The other end is wound around a winch (not shown) on the hoist main body 3 via a pulley 9c. Now, one end of an arm 10 of an appropriate length is attached to an arm shaft 10 at a position above both side plates 6a, 6a of the lifting platform 6.
a, and a position slightly closer to the center than the arm shaft 10a of the arm 10 and the side plates 6
a, 6a, the center and tip of the arm rotation cylinder 10b are rotatably connected to each other, and as the arm rotation cylinder 10b is extended and contracted, the arm 10 is rotated around the arm axis. It is configured to be rotationally driven around 10a. One end of a hydraulically driven crusher 11 is rotatably attached to the other end of the arm 10 via a shaft 11a, and a position above the shaft 11a of the crusher 11 is connected to the center of the arm. The crusher 11 is configured to be rotationally driven around a shaft 11a by a crusher rotation cylinder 11b which is rotatably connected between the two parts. Note that 12 is a hydraulic hose for supplying hydraulic pressure.

The crushing device configured as described above operates the operating lever (not shown) on the hoist body 3 to drive the lifting platform 6 up and down or rotationally drive the arm 10 and the crusher 11 to move the crusher toward the target. All you have to do is move it to the desired location and crush or cut the target. These operations can be performed freely within the range of movement of the crusher 11, and sufficient stability can be maintained even if the operator does not particularly limit the range of movement.
If it is necessary to pull the target object while it is being held by the crusher 11, the pulling rope 8a
Alternatively, the lifting platform 6 may be raised or lowered by operating the pulling down rope 8b. If the target object is outside the movement range of the crusher 11, the adjustment cylinder 4 is driven to extend to raise the lower end of the support column 1 above the ground G, move the hoist body 3 to an appropriate position, and then repeat the same process. It is only necessary to perform the operation, and if the movement distance is small, it is possible to adjust only by driving the backstays 2, 2 to extend and contract.

In this embodiment, there is only one arm 10, but it may have a plurality of arms and the shape may be arbitrary.
The crusher 11 can also be selected from various shapes and types.

Further, although the ropes 8a and 8b are used to drive the lifting platform 6 up and down, other mechanisms such as a rack and pinion or a chain and sprocket can also be used. In particular, when driving down the platform 6, the lowering rope 8b can be omitted. , the weight of the lifting platform 6, etc. may be used.

Furthermore, the support column 1 is erected vertically using the hoist body 3 for three-point support, but depending on the usage, the lower end of the column 1 may be supported only by the adjustment cylinder 4, and the lower end may be placed on the ground. It is also possible to work while floating from G, and it is also possible to equip the hoist body 3 with outriggers so that the lower end of the support column 1 does not always touch the ground. Furthermore, it is also possible to directly support and fix the column 1 on the ground using wire stays, etc., without using the hoist body 3. In this case, a rotary drive stand is installed at the lower end of the column, and the column 1 can be rotated around the vertical axis. When configured to rotate, the work range becomes wider.

As mentioned above, the present invention is equipped with a pull-down rope in addition to the pull-up rope, so the crusher can be forcibly raised and lowered via the lifting platform, and the crusher can be used to lift concrete walls of buildings. etc. can be reliably disassembled by peeling it off in the vertical direction. In addition, the adjustment cylinder installed between the hoist body and the bottom of the column allows the column to be brought into pressure contact with the ground, so when dismantling using a crusher, a strong vertical load is applied to the column, causing the column to float up. This prevents the pillar from falling. Furthermore, the adjustment cylinder allows the column to be lifted up and the dismantling work position to be quickly changed, thereby reducing loss time and improving the efficiency of the dismantling work.

[Brief explanation of the drawing]

Figure 1 is a side view showing an example of a conventional crushing device;
Fig. 2 is a side view showing one embodiment of the crushing device according to the present invention, Fig. 3 is a sectional view taken along the - line in Fig. 2, and Fig. 4
The figure is a sectional view similar to FIG. 3 of another embodiment. 1... Support column, 6... Lifting platform, 10... Arm,
11... Crusher, G... Ground.

Claims (1)

[Scope of utility model registration request] The support column is pivotally supported by a pair of backstays provided on the hoist body, and an adjustment cylinder for vertically moving the support column is provided between the hoist body and a location near the bottom end of the support column, and is erected approximately perpendicular to the ground. Equipped with an elevating platform that ascends and descends along a column, an arm that is pivotally connected at one end to the elevating platform and is rotationally driven, and a crusher that is pivotally attached to the other end of the arm and that is rotationally driven, A crushing device in which a lifting rope and a pulling rope are wound around pulleys attached to the upper and lower surfaces of a table.