JPS6031986B2 - Grasping device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a gripping device which is mainly used in dismantling structures, automobiles, etc., and which has a simple structure, can be manufactured extremely compactly, and can significantly improve the work efficiency. Regarding.

Recently, various crushing devices and gripping devices with less noise and vibration pollution have been developed.

Although it is considerably superior in terms of work efficiency compared to the playing power of subordinates, further improvements in workability are desired. In addition, the opening and closing mechanism of the claws of the crushing and gripping device is complicated, which tends to cause trouble, or increases the size of the device.
Therefore, in the present invention, the bases of the upper gripping claw and the lower gripping claw are supported in the outer lotus, the upper gear and the lower gear are fixed to the respective bases, and the gears are meshed with each other, and in this meshed state, the upper gripping claw is The claw and the lower gripping claw can be opened and closed freely, and a claw opening/closing link is provided protruding from the base of either the upper grasping claw or the lower grasping claw, and an internal hydraulic pressure is provided within the outer lotus at the end of the claw opening/closing link. Pivotally supported on the end of the piston rod of the cylinder, or in the above mechanism, a bracket is fixed to the outer surface of the outer ridge,
One end of the bracket is mounted on the tip of an arm that is bent and extended by a hydraulic mechanism, and the other end of the bracket is mounted on the piston rod end of a hydraulic cylinder installed in the middle of the arm. By meshing, both the upper gripping claw and the lower gripping claw can be opened and closed simultaneously and reliably, resulting in good workability, and the opening/closing mechanism for both gripping claws is a dual gear.
The mechanism is simple and can be manufactured compactly,
Furthermore, by driving the hydraulic cylinder that adjusts the angle of the main body, it can be quickly and reliably set to the desired angle for appropriate objects on the site, further improving work efficiency and eliminating the above-mentioned inconveniences. .

Next, the structure will be explained with reference to the drawings.

Reference numeral 1 denotes an outer bell of the gripping device, which is formed entirely in a hollow shape, and an enlarged portion la is formed at the bottom thereof.

An opening 2 is provided on the surface side (right side in FIG. 5) of the enlarged portion la. Reference numeral 3 designates upper gripping claws, in which a plurality of claws (three claws 3a, 3b, and 3c in the embodiment) are provided at equal intervals, and are fixed at a connecting village on the base side, and from this connecting village via a bracket or the like, the upper gripping claws are provided. A pair of bearings forming the base of the gripping claws 3 are supported by an upper claw shaft 4 provided within the enlarged portion la of the outer bonito 1.

5 is a lower gripping claw, which is also a plurality of claws (in the example, 5
a, 5b), and the claws 3a, 3 of the upper gripping claw 3.
b and 3c, and the base side thereof is fixed by a connecting hole, and from this connecting punch, via a bracket, etc., a pair of bearings, which will become the base of the lower gripping claw 5, are attached to the bulge of the outer crab 1. It is pivotally supported by a lower claw shaft 6 provided in part la.

7 is an upper gear, and 8 is a lower gear, both of which have a hole in the center and are formed with the same number of teeth and the same module; It is inserted between the bearings and fixed with pins, etc.

Further, the lower gear 8 is also fixed to the base of the lower gripping pawl 5 in the same manner as described above (see FIGS. 3 and 4). The upper gear 7 and the lower gear 8 are rotatably provided on the upper claw shaft 4 and the lower claw shaft 6, respectively, and are in mesh with each other. As a result, the upper gripping claw 3 and the lower gripping claw 5 are configured to be able to swing freely on a virtual vertical plane (the same plane as the plane of the paper in FIG. 5) around the upper claw shaft 4 and the lower claw shaft 6. Claw 3 of Claw 3, 3
b and 3c are alternately located with the claws 5a and 5b of the lower gripping claw 5, and when closed, the tips of the upper and lower claws intersect, and most of the upper gripping claw 3 and the lower gripping claw 5 are located in the closing part 2. more prominent. Reference numeral 9 denotes a claw opening/closing link, which is protruded from either the base of the upper gripping claw 3 or the lower gripping claw 5.

In the embodiment, it is provided at the base of the lower gripping claw 5 (the third
(see Figure 5). 10 is an internal hydraulic cylinder, and 1 is an external hydraulic cylinder.
The cylinder rod 11 is built in, and its intermediate portion is supported by a protrusion on the upper plate of the outer casing 1, and a piston rod 11 is provided on the lower side that moves up and down as appropriate by hydraulic pressure, and the tip (lower end) of the cylinder rod 11 is The upper gripping claw 3 and the lower gripping claw 5 are supported on the tip of the claw opening/closing link 9, and as the cylinder rod 11 moves up and down, the upper gripping claw 3 and the lower grasping claw 5 open and close as appropriate via the claw opening/closing link 9.

A tooth cover 12 covers the upper gear 7 and lower gear 8 exposed from the closed part 2, and is fixed to the enlarged part la of the outer cliff 1.

Reference numeral 13 denotes a bracket, with a first bearing portion 13a formed at one end (lower side in FIGS. 1 and 5) and a second bearing portion 13b formed at the other end (upper side in FIGS. 1 and 5). , whose bracket 13 is fixed to the outer surface of the outer shell 1.

Reference numeral 14 denotes an arm, which is provided at the tip of a boom of a shovel loader or the like so as to be flexed and extended as appropriate by a hydraulic mechanism.

One end of the bracket 13 (first bearing portion 13a) is supported by the tip of an arm 14, and the tip of a piston rod 16 of a hydraulic cylinder 15 provided in the middle of the arm 14 is the other end of the bracket 13 (second bearing portion 13b). It is pivoted on.
The hydraulic cylinder 15 is previously installed in a shovel loader or the like. Also, although not shown, the placket 1 of the outer weight 1
3 may be used by being fixed to the tip of the arm 14. In this case, the hydraulic cylinder 5 is not driven. The above-mentioned concept of upper and lower parts is with respect to FIG. 1, and in reality, the upper and lower parts may not be the same. Furthermore, the aforementioned gears may not be circular, but may be fan-shaped within the meshing range. Next, the effects will be explained.

In the invention described in claim 1, the bases of the upper gripping pawl 3 and the lower gripping pawl 5 are pivotally supported within the outer weight 1, and the upper gear 7 and the lower gear 8 are fixed to the respective bases, The upper gripping claws 3 and the lower gripping claws 5 can be opened and closed freely in the meshed state. A claw opening/closing link 9 is provided protruding from the base of one of the upper gripping claws 3 and the lower grasping claws 5. An internal hydraulic cylinder 0 provided in the external genitalia 1 at the end of the claw opening/closing link 9
By supporting the piston rod 11 at the end of the piston rod 11, when the outer weight 1 is fixed to the end of the arm of a shovel loader, etc., the upper gear 7 and the lower gear 8 mesh with each other.
Both of the upper gripping claw 3 and the lower gripping claw 5 can be opened and closed at the same angle at the same time, and because of their meshing, both can be opened and closed reliably.
It is easy to carry out operations such as crushing, and the efficiency of the operations can be improved.

Furthermore, since the opening/closing device is a meshing gear mechanism, it is less complicated than a link mechanism, has an extremely simple configuration, is less prone to trouble, and can be manufactured compactly. It is. Furthermore, since the device of the present invention grasps, crushes, etc. by opening and closing,
Of course, vibrations, noise pollution, etc. do not occur. In addition, this device can not only dismantle structures and automobiles (mainly junk cars), but can also be used to transport wood and other materials. Next, in the invention set forth in claim 2, in addition to the structure of the invention set forth in claim 1, a bracket 13 is fixed to the outer surface of the outer weight 1, and one end of the bracket 13 is bent and extended by a hydraulic mechanism. The end of the bracket 13 is supported on the end of the piston rod 16 of the hydraulic cylinder 15 provided in the middle of the arm 14, so that the hydraulic cylinder 5 can be moved without changing the angle of the arm 15. The gripping device itself can be adjusted to an appropriate angle by driving the device, allowing structures and objects (such as automobiles) to be quickly set in the state that is most easily gripped. , the main body can be quickly set at the desired angle.

That is, the angle of the main body can be quickly adjusted without wasting the bending adjustment of the arm 14, and operations such as grasping, crushing, and transportation can be performed more efficiently. The other configurations are equivalent to the configuration of the first aspect of the invention, and produce similar effects.

[Brief explanation of the drawing]

The drawings show an embodiment of the invention, the first embodiment of which is shown in FIG.
The figure is a perspective view of the present invention, Figure 2 is a plan view of the present invention, Figure 3 is a perspective view of a lower gripping claw equipped with a link for opening and closing the claw and a lower gear, and Figure 4 is taken along the line W-W in Figure 3. FIG. 5 is a partially sectional side view of the present invention showing an operating state. 1... external oath, 3... upper gripping claw, 5.
...Lower gripping claw, 7...Upper gear, 8.
...Lower gear, 9...Claw opening/closing link,
10... Internal hydraulic cylinder, 11, 16... Piston rod, 13... Bracket, 14...
Arm, 15... Hydraulic cylinder. Figure 1 Figure 4 Figure 2 Figure 3 Figure Boat

Claims (1)

[Scope of Claims] 1. The bases of an upper gripping claw and a lower gripping claw are pivotally supported in an outer casing, an upper gear and a lower gear are fixed to the bases of each, and the gears are engaged with each other. The interior includes a gripping claw and a lower gripping claw that can be freely opened and closed, a claw opening/closing link protruding from the base of either the upper grasping claw or the lower grasping claw, and an end of the claw opening/closing link provided within the outer casing. A gripping device characterized by being pivotally supported on the piston rod end of a hydraulic cylinder. 2 The bases of the upper gripping claw and the lower gripping claw are pivotally supported within the outer casing, the upper gear and the lower gear are fixed to the respective bases, and the gears are meshed with each other, and in this meshed state, the upper gripping claw and the lower gripping claw are It can be opened and closed freely, and a claw opening/closing link is provided protruding from the base of either the upper grasping claw or the lower grasping claw, and the end of the claw opening/closing link is connected to the piston rod end of the internal hydraulic cylinder provided in the outer casing. A bracket is fixed to the outer surface of the outer casing, one end of the bracket is supported on the tip of an arm that is bent and extended by a hydraulic mechanism, and the other end of the bracket is attached to the piston rod end of a hydraulic cylinder provided in the middle of the arm. A gripping device characterized by being pivoted.