SU573583A2 - Drilling boom - Google Patents

Description

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This invention relates to mountain sourness.

Basically auth.St. 539142 described a drilling arrow for drilling boreholes when driving and cleaning works, including a telescopic handle pivotally connected with a guide and a support, a distributor consisting of a housing, a spool and a rod, hydraulic cylinders with rod and piston cavities of sliding, turning with a guide handle ti, control hydraulic cylinder and a slide, interacting with guides placed on the boom support, the rod cavities of the control and sliding cylinders are interconnected, the distributor rod is rigidly connected It is connected with the hand, the body of the control hydraulic cylinder is connected to the slide and its rod is connected to the distributor case.

The aim of the invention is to provide the possibility of separately controlling the change in the length of the handle and its rotation while drilling an uneven bottom.

This is achieved by the fact that stops are made on the valve stem, and between them there is a spool, the ends of which interact by means of elastic elements with stops.

FIG. 1 schematically shows a boom arrow; in fig. 2- distributor, cut.

The drill arrow contains a telescopic arm 1, one end of which is pivotally connected to the guide 2, and the other with the support 3, which has a vertical groove 4. Guide 2 can be rotated relative to the telescopic handle by means of a hydraulic cylinder 5, the body and stem of which are pivotally connected with the hand and guide, respectively.

The telescopic handle can be rotated relative to the support by means of a hydraulic cylinder 6, the body of which is pivotally connected to the support, and the rod with the handle. A hydraulic cylinder “7 forwards” is placed inside the handle, the body of which is connected to the telescope sliding part, and the rod is connected to the body of the telescopic handle f

Claims (1)

On the body of the handle, with the help of brackets 8 and 9, the rod Yu of the distributor 11, controlling the telescope movement, is fixed. In the vertical grooves 4 a slider 12 is hinged, which is pivotally connected to the body of the control cylinder 13. The control cylinder can slider 7, 7 from: to an axis parallel to the telescopic arm. The stem 14 of the control cylinder is connected to the distributor case I, and the stem 10 of the divider 11 has stops, between which is located the valve 15, which interacts with the stem of the spring 16. The rod 17 of the hydraulic cylinder 17 moves the telescope and the rod 18 of the control cylinder They are connected between each other by hydraulic actuator 19 and their volumes are equal. The piston cavity 20 of the hydraulic cylinder extending the telescope and the piston cavity 21 of the control cylinder through the distributor; 11 and the distributor 22 or the distributor 23 are connected to the highway. The piston cavity 24 and the rod end cavity 25 of the cylinder 6 through the distributor 26 are also connected to the main. In the automatic mode, the oil through the distributor 26 is supplied to the hydraulic cylinder 6 and through the distributor 2 to the distributor 11, which controls the hydraulic cylinder 7, changes the length of the telescopic handle depending on the angle of its rotation. In the split mode, the oil is fed through the distributor 26 into the hydraulic cylinder b or through the distributor 23 and the control cylinder 13 into the hydraulic cylinder 7. When the oil is fed into the piston cavity 24 of the hydraulic cylinder b, the stem extends and rotates the telescopic handle 1 relative to the support 3 counterclockwise. In this case, the slider 12, moving upwards along the grooves 4, displaces the control cylinder 13 together with the distributor case 11 towards the bracket 9, compressing the right spring. When the oil is fed into the rod end 25 of the hydraulic cylinder b, the telescopic handle 1 is rotated clockwise, and the distributor case 11 is displaced towards the bracket 8, compressing the left spring. When the oil is supplied to the porous cavity 20 of the hydraulic cylinder, the lindra 7 body is extended, increasing the length of the telescopic handle. The oil displaced from the rod end 17 by hydraulic actuator 19 falls into the rod end 18 of the control cylinder 13 and displaces its rod 14 together with the distributor case 11 towards the bracket 8, compressing the left spring. In this case, the cavity 21 of the control cylinder is connected to the drain via a distributor 23. When oil is supplied to the piston cavity 21 of the control hydraulic cylinder 13, its rod 14 together with the distributor case 11 is displaced towards the bracket 9, compressing the right spring. The oil displaced from the rod end 18 through the hydraulic actuator 19 gets into the piston cavity 17 of the hydraulic cylinder 7. Its body is retracted f reducing the length of the telescopic handle 1. When switching from separate control to automatic oil through the distributor 22 and the distributor .11 it is fed into the cylinder 7 , setting the spring to its original position, while the length of the handle will correspond to its angle of rotation. Thus, such a constructive implementation of the drill boom allows operation in both automatic and separate; modes. The invention of Burov boom according to autor.St. No. 539142, characterized in that, in order to provide the possibility of separate control of the change in the length of the arm and its rotation while drilling the uneven slab, stops are placed on the distributor rod, and a spool is placed between them, the ends which interact through elastic elements with stops.