SU403622A1 - DRIVE GRAYFER1 The invention relates to devices for gripping and lifting large sunken objects or submerged to a great depth. Objects are known as a gripping grapple containing a flooring frame, on which the jaws are articulated with two power cylinders. the capture of objects sunken or immersed to a greater depth. The purpose of the invention is to capture objects sunken or immersed to a greater depth. The above objective is achieved by the fact that the power cylinders are located above the They are connected by hinges with the jaws and are equipped with a common hollow rod, which communicates between the cavity of the power cylinders. In addition, in order to prevent the spontaneous opening of the jaws on one of them, the latch is made in the form of two bars rigidly connected between themselves and having curly cuts interacting with the corresponding finger of the hinge of the other jaw. To reduce the scooping efforts and prevent the formation of an earth cushion when gripping, the jaws are provided with soil-clearing nozzles connected to the water section of the collection-1015202530torae located in the body of each jaw. In order to transfer information about the jaw closure, the bar has latches in each jaw. figure cutouts are fitted with contact sensors for remote signaling. In FIG. Figure 1 shows the proposed grapple (In the closed CONDITION; in Fig. 2 — the same in the opened state;, in Fig. 3 • - the power drive in the section; in Fig. 4 - section A — A in Fig. 1. Drive The grab consists of frame 1, left 2 and right 3 crescent rotary jaws, two power pneumatic or hydraulic cylinders 4 \\ 5, and a common for both cylinders of rod 6. There is a nozzle 7 for supplying the working medium to cylinder 5 (FIG 3) has an internal through channel for the passage of the working medium into the second crank'Indr 4. The rotary jaws 5! 2 and 3 are hinged on the axes S and P of the frame / The upper ends of the jaws are hingedly connected to the power cylinders 4 and 5. On the fingers 10 of the hinges of the jaw 3, there is a folding catch 11, made in the form of two bars rigidly interconnected. The free ends of the bars have figured cuts interacting with the fingers 12 of the hinges of the jaw 2. Over fi- - Google Patents

Description

Gureny cuts - remote contact alarm sensors 13 are remotely located.

The rotary jaws are oval ovular metal structures of box section with internal partitions.

The lower part of each jaw is provided with knives 14 and soil-washing nozzle nozzles 15 connected by supply lines to a distribution manifold 16. The collector and supply lines are located inside the internal cavities of the jaws.

When the grapple is immersed in water under pressure of its own weight and hydrostatic pressure of water, jaws 2 and 3 open (because the latch 11 is removed from the 12 gauge 12, and the internal cavity is force0; the cylinders are connected to the atmosphere (in the case of a pneumatic drive) or to the drain (, in the case of a hydraulic drive), the pressure supply from the pump unit is stopped in a known manner and the cylinder bodies 4 Vi 5 slide along the rod 6, approach each other.

After hoisting and landing the drive grapple on the object, the soil-washing system is activated and working pressure is applied to cylinders 4 and 5, which are moved apart by turning the jaws 2 and 3 around the axes 8 to 9.

At the same time, the lower ends of the jaws 2 and 3, overcoming the resistance of the soil, which was reduced due to the knives 14 and at the same time we were eroding, converge, grasping the object. If one of the jaws is earlier than the other, it is pressed against the object, then the second one will complete the gripping of the object due to the fact that cylinders 4 and 5 lie are connected to the frame / and are swiveled 10 and 12 only with the upper ends of the jaws 2 and 3.

After closing the jaws, the free end of the latch 11 falls into the groove on the fingers 12, preventing spontaneous opening of the jaws. At the same time, the contact sensor 13 provides a force for closing the jaws. After

This grapple can be lifted along with the captured object. To release the raised object, the latch 11 is raised and, under the action of its own weight, the grapple jaws open.

Claims (4)

1.Privodnuyu grab containing a carrier frame, which is hinged jaws controlled by two power cylinders, characterized in that the power cylinders are located above the frame, are connected by joints to the jaws and are equipped with a common hollow rod, which communicates the cavities of the power cylinders between them to capture sunken or immersed deeper into the object. 2. The drive grapple according to claim 1, characterized in that, in order to prevent spontaneous opening of the jaws, on one of them there is a hinged latch, made in the form of two bars rigidly connected between themselves and having figured notches interacting with the corresponding hinge of the other jaw. 3. The drive grapple according to claim 1, in connection with the fact that, in order to reduce the scooping forces and prevent the formation of an earth cushion during the seizure, the jaws are equipped with grunt-washing nozzles connected to the water distribution collectors. in the body of each jaw. 4. Drive grapple on PP. 1 and 2, about tl and cussed by the fact that, in order to transfer information about the closing of the jaws, contact sensors of the remote signaling system are installed on the bars of the latch in the area of its figured cuts. Sources of information: matsie taken into account during the examination: 1. Auth. swith № 303275, M. Kl. B 66 C 1/60, 1967 4 13 f2 I .. 1I | I - -G -..., -f.l | -. - // / It Fig 3 A- A It