SU1610033A1 - Unit of roadway support - Google Patents

Abstract

This invention relates to rock drip supports. The goal is to reduce the labor and time required for relocation of lining when moving lava. The drift section consists of a base 1, hydraulic legs (HS) 2, side support elements (BOE), top, hydraulic cylinders and a restoring device. The ball joint (W) 10 is supported by GS 2 on the ball bearing 9 and cylindrical W is connected to the BOE. The latter is made of a beam, a bracket (K), a two-armed lever and a shield. On the ball bearing 9 placed in the base 1, K 28, 29 are mounted. In the grooves K 28, the ends of the elastic rod are installed, and in the holes K 29, stoppers 33 are installed, made in the form of cylindrical rods. A stepped pin 34 is installed in the bore of the ball W 10 by the middle part, which with its ends enters the curvilinear holes 35 of the levers 36 placed horizontally and symmetrically relative to the axis of the ball 9. The levers 36 are rigidly fixed on the elastic rod through a square connection. Under the action of rock pressure, the upper side of the BOE and HS 2 can tilt in the longitudinal plane of the drift relative to the ball bearings 9. The stability of the support section is ensured in this case by the operation of the restoring device. For this, the ball W 10 rotates in the ball 9. At the same time, the levers 36 twist the elastic rod 31, whose forces will keep the support section from falling in the longitudinal plane of the drift and tend to restore it to the neutral position. 6 Il.

Description

The invention relates to the mining industry, in part to the lintel, installed in the zone of increased reference pressure of the mine while maintaining mine workings and remounted as it moves

and you.

The purpose of the invention is to reduce

labor intensity and time to relocate the lining section when moving the lava.

Fig. 1 shows a drip section; FIG. 2 is a section A-A in FIG. figure 3 - view B in Fig, 1; figure 4 - section bb In fig.Z; figure 5 - section GGD fig.Z; Fig. 6 shows a section in the folded position.

The drift support section consists of a base 1, hydraulic supports 2 and lateral support elements 3, a top 4, hydraulic cylinders 5 and a restoring device 6.

The base 1 has a guide longitudinal groove 7 on top for transporting the sections and along the edges of the recess 8 under the pillars when folded and positioning the ball bearings 9,

Hydraulics 2 ball joint 10 rests on the ball bearing 9 and the cylindrical hinge 11 is connected to the lateral support element 3, the lateral support element 3 consists of a beam 12, an additional bracket 13, a double arm 14 and a plate 15, the Element 3 by the hinge 16 is connected to the top 4. To the beam 12, by means of a hinge 17, is attached a tongue 15, which interacts with an end face 18 with a stop 19 of the beam 12 ,. and by means of axis 20 a double-arm lever 14 connected by a hinge 21 to a rod of hydraulic 0

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the cylinder 5 and the cylindrical pin 22 through the hole 23 with one of the holes 24 and 25 of the additional bracket 13 welded to the beam 12.

The hydraulic cylinder 5 by the hinge 26 is connected to the top 4, the end of the rod of the hydraulic cylinder 5 is rounded and interacts with the profile of the cam 27 of the additional bracket 1 3 when folded.

In the recess 8 of the base 1 there is a ball bearing 9, on which brackets 28 and 29. are mounted. In the slots 30 of the brackets 28, the ends of the elastic hinge 31 are installed, and in the holes 32 of the brackets 29 there are stoppers 33 made in the form of cylindrical rods.

The cylindrical stepped pin 34 is fitted with a central part in the opening of the ball joint 10 and with its ends enters the curvilinear openings 35 of the levers 36 placed horizontally and symmetrically with respect to the axis of the ball bearing 9 of the base 1. The transitional surface 37 of the cylindrical stepped pin 34 interacts with the stops 33 made in cylindrical rods arranged perpendicular to the cylindrical stepped 11-fingers 34. The levers 36 are rigidly fixed by means of a square connection 38 on an elastic rod 31. When assembling, the stoppers 33 are mounted through technological holes 39 of the base 1 and fixed from two sides with cotter pins.

The device works as follows.

For folding the lining section, the double-arm lever 14 is removed, for which the cylindrical pin 22 J of the holes 23 of the hydraulic cylinder rod 5 and 24 of the additional 1: 3 bracket 1: 3 is removed and the hydraulic jacks of the lower elements of the 2 racks are unloaded, and at the same time hydraulic cylinders 5 are turned. All around the hinges 10, 11 and 16, the elements 3 of the hydraulic legs 2 of the support will move inwards. The double-arm lever | 14 will then rotate the BjoKpyr axis 20. When passing through the measure zone, when the axial line of the cylinder 0 of the cylinder 5 coincides with the axis 20, the two-arm lever 14 will be rotated due to the kinematic B {profile of the cam 27 with the rod end 5. After passing through the dead zone and ending the geometric locking, the cam profile 27 with the end of the hydraulic cylinder rod 5 turns the two-arm lever 14 and continues with the hydraulic cylinder 5 when it is contracted. In the folded position, the fixtures are fixed by the cylindrical pin 22 in the holes 25 dopso | arm bracket 13 and 23 twin arm 14.

 Preparing the section of the lining to the permutation, the section of the lining is raised, rotated 90 ° so that the base || those 1 fell into the longitudinal groove 7 of the unstressed sections installed in the drift in the area of the load-bearing reference pressure, and transported to the installation site as the lava moves "

 by the action of mountain dashmenia or gravitational forces up to 4c electro 3 and hydrorests 2 can tilt in the longitudinal plane of the shaft relative to the ball bearings 9 of the base 1 .. The support section is stable in this case by operating the country of the inflating device 6. Spherical {arnier 10 is rotated in the ball end 9 of the base 1 in the longitudinal plane of the drift, but in the hole of the ball joint of the hinge 10 by the middle part of the cylindrical stepped palei | 34, which will be interconnected by the ends with the curvilinear openings 35 of the levers 36 and turning them one up and the other down, with the square connection 38 levers 36 twisting the elastic rod 31 on both sides. Elastic forces of the twisted elastic 16

1610033

This rod 31 will hold the support section against falling in the longitudinal direction of the drift and will strive to restore it to the neutral position. The curvilinear holes 35 of the levers 36 are made with a decrease in the diameter of the holes to the middle, which ensures that at small gaps the normal cond contact of the cylindrical ends of the cylindrical stepped pin 34 when the hydraulic rails are tilted 2. At a maximum angle of ° C (figure 4), it is calculated or calculated

j through, the cylindrical stepped pin 34 with its transitional surface 37 interacts with one of the stops 33 and further prevents the upper part from turning

The Q sections are fixed to the base 1. The transition surface 37 of the cylindrical stepped pin 34 is made conical in shape for greater strength, and the limiting 33 for the purposes of greater compactness and reliability are made in the form of cylindrical rods arranged perpendicular to the cylindrical stepped finger 34 and installed

- in the brackets symmetrically with respect to the axis of the ball joint 9. Also, symmetrically and horizontally with respect to the axis of the ball bearing 9, the levers 36 are located, which in a compact form allows the elastic rod 31 to be twisted

5 with two doors counterclockwise or clockwise, providing resistance to the inclination of the upper part of the support section relative to the base 1 in both the left and right directions.

The sufficient stability of the lining section in the longitudinal plane of the drift due to the use of a restoring device also reduces the number of hydraulic rails from four to two and thereby simplifies the design, reduces the metal consumption and reduces the dimensions of the lining section along i width, which increases its maneuverability during mountain turns. working out.

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Claims (1)

Invention Formula The section of the liner, including the upper to, the lateral support beams hinged at its ends with the upper ends, the middle part of each, of which with the help of a bracket is 1 to the L-shaped lever and the hydraulic cylinder hinged to it 55 The upper ends and the lower ends are pivotally connected to the flap mounted with the ability to interact with the stop of the lateral support beam, and to the upper end of the hydraulic cylinder, the lower end of which is fixed on the base by a ball joint, so as to reduce labor intensity and time for relocation of the section when moving the clave, it is equipped with cylindrical stepped fingers, the middle parts of which are installed in the holes made in ball joints along the longitudinal axis of the section, elastic rods installed and between the ball bearings parallel to the cylindrical stepped fingers in the grooves, performed five base levers, horizontal levers located symmetrically with respect to the axes of the ball bearings perpendicular to the longitudinal axis of the section, limiting, rotated in the form of cylindrical rods arranged perpendicular to the cylindrical stepped fingers, with the possibility of interaction with their transition surfaces, and the ball-bearing brackets are made with holes in which the ends of cylindrical rods are mounted, with one ends of the levers made with curvilinear holes l accommodate the ends of the cylindrical fingers, while others are rigidly fixed on the elastic rods. 1627215 12 12 1 View 5 , - 7 Fig.Z FIG. five 36 30 16 22 5 26 "26 5 22 / J 7 / / , 111 75