SU610936A1 - Vibration grapple - Google Patents

Description

one

This invention relates to the field of construction. The vibratory grapple is designed for sinking narrow and deep trenches at. construction of underground structures.

A vibrating grab is known, which includes a ground-intake device with jaws, a traction spring suspension with a plate, and a directional vibrator with a lid Yil,

The disadvantage of the vibrator is the need to use auxiliary; mechanisms for unloading the extracted soil, which reduces the efficiency of the use of grab equipment.

The aim of the invention is to increase the efficiency in the operation of grab equipment.

This is achieved by the fact that the plate is equipped with an arc stand with a bark and stops, articulated hooks and dogs that are installed with the ability to interact respectively with spring-loaded pushers and ratchet stops that the vibrator cover is equipped with.

The arc with the bark and the stops is connected to the plate through a spring suspension

with the possibility of mutual movement and fixation.

The drawing shows a schematic diagram of the vibrator grab.

The vibro-grab contains a soil collector 1 of rectangular shape in plan with jaws 2 located in its lower part and connected with an automatic control mechanism by means of t g 3. A vibrator 4 with a cover is installed in the soil collector, made in a common housing with an electric motor 5. On the vibrator cover spring-loaded pushers 6 are mounted, ratchet stops 7 and rods 8 are fixed.

Claims (2)

The control mechanism of the jaw 2 is mounted above the vibrator and consists of two suspensions — a bend and a shock-absorbing one. The 9 g plate of the hanger suspension has holes, through which three are missed. Three springs 10 and adjusting nuts 11 are seated on the bar. On the plate 9 are fixed a strut 12 with hinged hooks 13 and a pawl 14, pressed against the ratchets 7 by springs 1 are not shown in the drawing ). On the rods 8, the springs 15 are pressed, pressing the arc 16 of the shock-absorbing suspension to the slab 9. On the side racks of the arc, protrusions 17 are made that interact with the pawls 14. In the upper part of the arc I have eyelets 18. With the help of which the vibrator is hung on the lifting mechanism with slings 19, and see measles 2O fixed, fixed by nut 21. The vibropripper works as follows. When mounted on the groove, the jaws 2 occupy the original, open, position due to the springs 15, which transmit the force through the arc 16 to the plate 9 and then through the nuts 11 to the ti gi 3 jaws. At the same time, as the arc 16 moves downwards, the measles 20, overcome by the resistance of the spring-loaded pushers 6, to the left, pushes the gripper 13 and occupies. position corresponding to that shown in the drawing. When you turn on the vibrator 4 is a forced immersion trap 1 and its filling with soil. After the end - immersion, the vibrator turns on and the vibration grab starts to be removed. In this case, using a lifting mechanism, the sling 19 is pulled and the extraction force through the arc 16 and the bark 20 is transmitted by means of the grippers 13 to the rack 12 and the plate 9, and then through the springs 10 tons of gum 3 jaws 2 of the ground collector. As the extraction force increases, the plate 9, the compression of the spring 1O, rises, and the dogs 14 begin to interact with the ratchet stops 7, In case the jaws 2 cannot close (there is great ground resistance, hard / breath inclusions, boulders and .), the entire extraction force is accumulated in the springs 10 of the pull suspension and is fixed by the dogs 14 on the ratchet stops 7. When the necessary force is reached, the further spreading of the vibrator grader is made when the vibrator is turned on, which allows removing a significant part of the sides friction forces and thereby reduce the extraction force. Thus, it is useful to use the force damping of the vibrator to close the jaws. The extracted vibrating grab with the ground is transferred to the unloading point, where it descends from until it touches the base of the unloading platform and rises again. When this occurs, a certain lowering of the core 2O occurs, and the grippers 13 rotate relative to their hinges under the force of gravity, freeing the path for the bark, which rises with the arc 16 and rises relative to the plate 9, compressing the spring 15 and pressing the projections 17 on the rear sides of the dogs 14. The plate 9 under the action of the springs 10 goes down until it comes into contact with the nuts 11, and then moves further together with. rods 8 opening jaws 2. In this case, the pushers 6 return the grippers 13 to the initial position. Raising the grab, again turn on the VibroTrr, which is used to force the unloading of the soil. The springs .15 in this case bear the function of a shock absorber, which protects the load-carrying mechanism from dynamic effects. After the soil collector is emptied, the vibrating grab is re-installed on the face and the described operations are repeated until the well is drilled to the design depth of the trench. Then, a special guide is lowered into the well, which during further trenching serves as a limiter separating the finished part of the trench from the one being passed. Having made a successive penetration of rectangular grippers to the design depth, they form a trench of the required length. Sealing the main components of the vibration mechanism allows trenching to be carried out using the described vibrating grab under a layer of water or mud. Claim 1. Vibro-grab, including a soil collecting device with jaws, a traction spring suspension with a plate and a vibrator of directional action with a lid, characterized in that in order to increase the efficiency of the vibrator grab in operation, the plate is equipped with an arc bar with a bark and stops, with hinged grips to dogs installed with the ability to interact, respectively, with spring-loaded pushers and ratchet stops, which the vibrator cover is equipped with. 2, The vibration grab according to the item tl and h and ush and the fact that the arc stand with the bark and the stops are connected to the plate through the spring suspension with the possibility of mutual movement and fixation. Sources of information taken into account in the examination; 1, Copyright certificate № 404.923, class, E 02 F 5720, nineteen J8 sixteen Their-