JPH0412937Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a crusher used by being suspended from a crane or the like, with a rotating device attached thereto, so that the opening direction of the crusher can be freely changed.

Conventional technology When crushing buildings and other high-rise buildings, a crusher is attached to the tip of an ultra-long boom as shown in Figure 5, in the case of buildings that are not relatively high. In the case of taller buildings, a crusher is suspended from the wire rope of a crane to carry out the crushing work, as shown in Figure 6. The former method, in which the crusher is attached to the tip of an ultra-long boom, allows the boom to be bent midway, so the position of the crusher can be changed relatively freely; Moreover, the weight of the crusher itself is also limited, making it impossible to install a heavy crusher.
The latter method of hanging from the wire rope of a crane boom allows for the suspension of a fairly heavy crusher as long as the strength of the boom is sufficient, and if the length of the boom is increased, it is possible to work on high-rise buildings of 40 meters or more. Because of this, many high-rise buildings are suspended using wire ropes from cranes.

Problems to be solved by the invention Among the above methods, the method of suspending the crusher using wire ropes allows the condition of the crusher to be moved freely by operating the wire rope, and can be held at a desired height. In addition, for simple crushing work, the crusher itself does not need to be fixed to a fixed object; it is only necessary that the claws at the openings engage, so hanging the machine with wire ropes is sufficient. However, since the crusher is suspended by wire ropes, it is not possible to control the horizontal orientation of the crusher. Especially when it is suspended by a single wire rope, the crusher itself can rotate freely, but
It cannot change direction without applying an external force. For this reason, a flexible hose for supplying pressure oil to the crusher was inputted or pulled using other methods to change the direction in the desired direction. This flexible hose has considerable tensile strength,
Although it does not break when pulled manually or by other means, it is a high-pressure oil supply hose and is made of rubber, so it cannot be said to be as safe as wire rope. Additionally, if the crusher is located over 40m, the hose becomes long, making it difficult to handle, requiring time and manpower, and reducing work efficiency.

The present invention aims to solve the above problems.

Means for Solving the Problems The means of the present invention taken to solve the above problems are: (a) Two independent wire ropes that can be moved up and down the front and rear parts of the bracket fixed to the top of the upper support body. B) Brackets are provided at the top, side, and rear of the main body of the crusher, and the crusher is configured to be replaceable with respect to the required bracket.

Function Since the lower rotary body can freely rotate by power with respect to the upper support body, the direction of the opening of the crusher connected to the lower rotary body can be freely determined, making the work easier and eliminating the need for conventional crushers. This improves work efficiency without requiring time and manpower.

Further, since the crusher is provided with several brackets corresponding to its posture, and the opening changes depending on the mounting condition of each bracket, the position of the opening can be varied in a variety of directions other than horizontally.

Furthermore, since the crusher and the rotating device are configured separately, it is convenient because various types of crushers can be attached to one rotating device.

Embodiments Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

Reference numeral 1 denotes a crane boom, at its tip, the rear end of an auxiliary boom 2 is rotatably supported, and the lower end of a column 3 is fixed, and the upper end of the column 3 and the auxiliary boom are fixed. The auxiliary boom 2 is supported by a wire rope 4 stretched between the upper ends of the auxiliary boom 2. In addition, pulleys 5, 6, and 7 are pivotally attached to the upper ends of the boom 1, the auxiliary boom 2, and the support column 3, respectively, and a wire rope 8 is stretched through the pulleys 6 and 7, and the wire rope A crane hook 9 is attached to the tip of 8. Also, the wire rope 1 passes from the tip of the boom 1 through the pulley 11 of the crane hook 10 below, and then through the pulley 5 at the tip of the boom 1.
2 is hanging. The wire rope 12 and the other end of the wire rope 8 are wound around a crane drum (not shown), and by winding the drum, the crane hooks 9 and 10 move up and down at a constant speed. It is configured as possible.

Reference numeral 13 denotes a rotating device, which includes an upper support body 14, a lower rotary body 15, a swing bearing 16 that connects the two, and the like. A bracket 17 is fixed to the upper part of the upper support 14, and the bracket 1
The front and rear parts of 7 are suspended from crane hooks 9 and 10 via hanging rings 18, respectively. A hydraulic motor 19 and a swivel joint 20 are also installed on the upper surface of the upper support 14. The hydraulic motor 19 is for rotating the lower rotating body 15, and has a pinion 21 fixed to a drive shaft 42 extending downward, and a flexible hose 22 for supplying pressure oil runs along the boom 1. It extends downward. The swivel joint 20 is connected to the hydraulic cylinder 24 of the crusher 23 suspended from the swivel device 13.
A flexible hose 25 for supplying pressure oil is connected to the hydraulic motor 19 at a joint for supplying pressure oil to the hydraulic motor 19.
The flexible hose 26 extends downward alongside the flexible hose 22, and the flexible hose 26 also communicates with the hydraulic cylinder 24 to prevent the flexible hose 26 from twisting even when the crusher 23 rotates together with the lower rotating body 15. .

A slewing bearing 16 is provided on the underside of the upper support 14.
The upper part of the outer ring A of the swing bearing 16 is connected with a bolt 27, and the lower rotating body 15 is connected to the lower part of the inner ring B of the swivel bearing 16 with a bolt 28. It is designed to be able to rotate freely in the horizontal direction. Further, the inner ring of the slewing bearing 16 is formed with internal teeth on the inside, and the internal teeth mesh with the pinion 21.
By driving the hydraulic motor 19, the lower rotating body 15 can be freely rotated. A bracket 29 is provided protruding from the lower side of the lower rotating body 15, and the crusher 23 is pivotally attached to the bracket 29 by a pin 30.

The crusher 23 includes a main body 32 having a claw 31, and a main body 32 having a claw 31.
The rear part of the rotary arm 34 is rotatably supported on the main body 32 by a pin 35, and the hydraulic cylinder 24 is connected between the main body 32 and the rotary arm 34, respectively. The claws 31 and 3 are pivoted by pins 36 and 37, and actuate the hydraulic cylinder 24 to rotate the rotary arm 34.
Crushing work can be performed at 3. The crusher main body 32 is provided with three brackets for attaching the main body 32 to the rotating device 13. That is, a plurality of brackets 38, 39,
There are 40. Reference numeral 38 denotes a bracket protruding toward the rear, and the rotating device 13 is connected to the bracket 38 by the bracket 38.
If it is attached to the nails 31 and 3 as shown in
The opening where No. 3 exists faces downward. Reference numeral 39 denotes a bracket protruding upward, which in this case assumes a normal posture as shown in FIG.
33 is activated from above and below. Reference numeral 40 designates a bracket projecting laterally from either the left or right side of the main body 32, but as shown in FIG. 3, the main body 32 is horizontal and the claws 31 and 33 are horizontal. It will be activated. Note that 41 is a cutter for cutting reinforcing bars.

The present invention is constructed as described above, and when actually working, the wire ropes 8 and 12 are wound up and
Alternatively, the rotating device 13 and the crusher 23 are moved up and down to a desired height by unwinding. When the crusher 23 is connected to the bracket 29 of the lower rotating body 15 by the bracket 38 at the rear of the main body 32 as shown in FIG. 1, the opening thereof faces downward. Therefore, objects placed horizontally can be crushed or cut. If the orientations of the openings do not match, it will not be possible to engage, so in this case, the hydraulic motor 19 is activated. Pinion 21 fixed to drive shaft 42
This is because it drives the inner ring RO of the slewing bearing 16 that meshes with this. The lower rotating body 15 can rotate in a desired direction. When the direction of the claws 31, 33 is perpendicular to the target object, the wire ropes 8, 1
2 is slightly loosened to lower the rotating device 13 and the crusher 23 slightly, and then the hydraulic cylinder 24 is activated, the target object can be pinched between the claws 31 and 33 and crushed. If the target object is a reinforcing bar, steel frame, etc., if the entire object is lowered further, the cutter 41 will be in a position perpendicular to the target object, and the hydraulic cylinder 24 can be operated to cut the object.

The above method is for crushing a horizontal target object from above, but when crushing from the side, the crusher 23 is removed from the rotating device 13 and the main body 32 is crushed as shown in FIG. The upper bracket 39 is connected to the bracket 29 of the lower rotating body 15. Of course, the position of the bracket 39 is such that when it is hung from this part, the opening faces exactly in the lateral direction, so that it can bite a horizontally placed object from the lateral direction. Of course, in this case as well, it is necessary to ensure that the direction of the main body 32 is perpendicular to the target object, so the hydraulic motor 19 is driven to adjust the direction as in the case described above.

In Fig. 1, the auxiliary boom 2 is attached to the boom 1 of the crane, and the rotating device 13 is suspended by separate wire ropes 8 and 12 through separate pulleys 5 and 6, but this method is not necessarily necessary. Without,
As shown in FIG. 4, a double pulley 44 is attached to the tip of the boom 43 of the crane.
Two wire ropes 45 may be stretched through the wire rope 4, and the rotating device 13 may be suspended from the tips of the wire ropes 45. This method has the advantage that the two wire ropes 45 can be wound around drums having the same diameter.

Effects of the Invention As described above, the present invention provides a method for suspending a crusher, which consists of an upper support and a lower rotating body rotatably connected to this via a swing bearing, and a rotating device that can freely rotate using power. Since the crusher is suspended through the
The work is easy to do, and work efficiency is improved without requiring the time and manpower required in the past.

In addition, the crusher is equipped with several brackets that correspond to its orientation, and the direction of the opening changes depending on how each bracket is attached, so the direction of the opening can be changed horizontally, vertically, etc., making it easier to work. Adaptability increases.

Furthermore, since the crusher and the rotating device are constructed separately, it is convenient to be able to attach various types of crushers to one rotating device.

[Brief explanation of the drawing]

Figure 1 is a partially longitudinal front view of the present invention, Figures 2 and 3 are front views of the crusher shown in Figure 1 when the attachment state to the rotating device is changed, and Figure 4 is the rotating device. FIG. 5 is a front view showing another embodiment of the hanging method of
FIG. 6 is a front view of a conventional method. 8...Wire rope, 12...Wire rope,
13...Rotating device, 14...Upper support, 15...
...lower rotating body, 16...swivel bearing, 19...
...Swivel motor (hydraulic motor), 20...Swivel joint, 23...Crushing machine, 32...Main body, 3
8...Bracket, 39...Bracket, 40...
...Bracket.

Claims (1)

[Scope of utility model registration request] The upper support is suspended by a wire rope stretched through a pulley at the tip of the mobile crane's boom.
A rotating device in which a lower rotating body is rotatably connected to the lower part of the upper support via a swing bearing, and a crusher is suspended from the lower part of the lower rotating body, and is fixed to the upper part of the upper support. The front and rear parts of the shredded brackets are suspended from two independent wire ropes that can be moved up and down, and brackets are provided at the top, sides, and rear of the main body of the crusher, and the required brackets are A rotating device for a crusher, characterized in that the crusher is configured to be replaceable.