SU1430544A1 - Device for attaching canopy to hydraulic prop - Google Patents

Abstract

The invention relates to the mining industry and is intended for the attachment of working faces. The objective of the invention is to increase the reliability and maintainability of the device and the mechanized roof support unit as a whole. On the ceiling 2 fixed bearing 1 with a hole. Head 9 hydrostatic 8 is made with a longitudinal through hole. In the holes of the support 1 and the head 9, there is an elastic element 3 with a sleeve 4 screwed on it. The head 9 is fixed in the lock of the hydroresis 8 lock. At the same time, the lock fixes the sleeve 4 on the elastic element 3. The lock consists of stepped fingers 6 and. locking ring 7. When unloading a section, the support head 9 is lowered, the fingers 6 of the lock. interact with the sleeve 4. In the elastic element 3 there are longitudinal forces that impact: comfort on the ceiling 2 and release it from pinching. 1 il. IO (L

Description

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The invention relates to the mechanization of ujHH treatment works in coal mines, namely, mechanized supports for cleansing faces during the development of flat seams of flat fall.

The purpose of the invention is to increase the reliability and maintainability of the device for fastening the ceiling to the hydraulic rack and to the mechanized support section as a whole.

The drawing shows the device.

The device for fastening the overlap to the hydraulic post contains a support 1 fixed on the overlap 2, an elastic element 3 made with a thread, a sleeve 4 with notches 5, the upper part of the aperture of which has a conical shape, and the lower part cylindrical with a thread, and a lock consisting of step fingers 6 and retaining ring 7.

The hydraulic post 8 supports the overlap 2 through an interchangeable spherical head 9, which is a continuation of the rod 10. The head 9 is made with a longitudinal through hole in which the resilient element 3 is placed with its sleeve 4 fixed to it. Hole 9 is fixed in the rod with a lock. In this case, the stepped fingers of the lock 6 are placed in the holes made in the head 9 and the rod 10, and are fixed with a retaining ring 7.

This lock simultaneously holds an elastic element 3 with a sleeve 4. Pa Jayet 6 with a step 11 of a smaller diameter goes into the notch 5 of sleeve 4 and does not allow it to be arbitrarily screwed from the | elastic part of the elastic element 3.: in this way.

The elastic element 3 is placed in the overlap 2 through the hole in the top sheet and the sleeve 4 is screwed onto it, providing the necessary clearance between the support and the replaceable head 9 of the hydraulic post 8. Then, the overlap 2 assembly is mounted on the hydraulic post 8, the elastic element 3 is inserted with the sleeve 4 into the longitudinal opening of the replaceable head 9 of the hydraulic column 8, and fixing the replaceable head 9 and sleeve 4, preliminarily aligning the holes in the rod 10, the replaceable head 9 of the hydraulic column 8 and the notches 5 on the conical part of the sleeve 4, after which install the fingers 6 and the stopper 7 th ring.

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The device for fastening the overlap to the hydraulic post works as follows.

At the time of the unloading of the lining section, the overlap 2 tends to overturn, tilt in the direction of the dip. The elastic element 3 maintains the overlap in the normal 8 position with respect to the hydraulic rigidity.

When unloading the support section, in case of a pinch, overlap 2 mezvdu with adjacent sections, the elastic element 3 experiences axial load, and the sleeve 4 interacts with the pins 6 of the lock. In this case, the head 9 of the hydrodio 8, together with the elastic element 3, is lowered, carrying the overlap 2 with it, freeing it from being pinched.

Making the opening of the sleeve 4 with the threaded cylindrical part facing the bottom sheet -12 of the overlap 2 allows the gap between the overlap 2 and the hydroresistant 8 to be adjusted by increasing or decreasing the length of the elastic element 3 from the top 13 of the overlap to the sleeve 4.

Making a part of the opening of the sleeve 4 facing the upper sheet 13 of the overlap 2 conical provides the necessary angle of tilt when bending the elastic element 3 at the time of overturning the overlap 2.

Execution of the lock in the form of stepped fingers 6 and a locking ring 7, covering the rod of the hydraulic post 8 and placed in the end grooves of the fingers 6, makes it possible to fix simultaneously; Three parts: a rod 10, a replaceable head 9 and a sleeve 4, screwed on the elastic element 3.

Claims (1)

Image Formula: e shadow A device for fastening the overlap to a hydraulic post, including a support fixed on the floor, an elastic element with a sleeve placed in its opening, which is fixed to the hydro post of the hydraulic post by a retaining ring, characterized in that, in order to increase reliability and maintainability, it is provided with stepped fingers with end grooves , the elastic element is threaded, the sleeve is cut-out, the upper part of the bore hole is conical, and the lower part is cylindrical 31430544 threaded, with steps in the bushings, and a retaining ring of fingers of smaller diameter are placed in the face grooves of the fingers.