RU2299329C2 - Mechanized lining section - Google Patents

Abstract

FIELD: mining industry, namely, technology for controlling mechanized lining.

SUBSTANCE: in accordance to invention, frame of command block is made of two side pieces, beams and walls. At the top, on goaf side of section, a shield is jointly mounted on side pieces of frame. Mounted on the frame between side pieces are electro-hydraulic block, section control station and connector block. Control blocks with levers are mounted symmetrically relatively to frame on vertical panels, which are fastened to overhanging supports rigidly connected to frame. From below frame by means of axes is connected to overhanging support, which is held on base of lining section with possible turning towards face. Mounted in the middle of frame are levers, which are jointly connected to pins, located in eyes of base. Levers have longitudinal and transverse grooves. Also, at the top, on goaf side of section, frame side pieces and the shield have obliquities.

EFFECT: improved conditions of lining control operations, maintained location zones of frequently used control organs in accordance to common ergonomic requirements during execution of operations while standing, prevented mounting-dismounting operations due to symmetric construction of command block and possible transportation of sections of mechanized lining in folded state together with command block.

2 cl, 4 dwg

Description

The invention relates to the mining industry, and in particular to the management of powered roof supports.

Known section mechanized lining having a lever mechanism made of upper and lower levers connected by an axis. The upper lever is pivotally attached to the ceiling at one end, and the control unit is fixed at the other end of the lever. The lower lever is pivotally fixed via an axis to the eye (see Auth. Certificate No. 1366643, E21D 23/00, 1988).

Such fastening of the control unit is possible only for supports supporting and supporting the type with a rear arrangement of hydraulic racks and allows its normal maintenance only in one of some possible position.

In addition, as the height of the section decreases or increases due to the extension of the hydraulic stands, the overlap and the articulated four-link, and therefore the control unit, move, which ultimately leads to a significant deterioration in its maintenance. The use of such a fastening of the control unit on the mechanized supports of the supporting-protective type for a large removable power with the front location of the hydraulic stands is generally impossible due to a significant change in the position of the overlap and the articulated four-link, and therefore the control unit, from its lower position to the upper.

It is also impossible to place between the racks, the ceiling and the articulated four-link hydraulic control unit with a large number of commands needed for modern hydro-powered supports.

Known section mechanized lining, consisting of a base, floor and articulated four-link with front and rear levers. The section has two lever mechanisms installed between the ceiling and the front lever, each of which consists of upper and lower levers, while the upper levers are equipped with coaxial grooves to accommodate the hydraulic fittings. The gutters are located under the ceiling on the obstructive side relative to that installed between the ceiling and the base of the hydraulic stand. The lower levers are pivotally fixed at one end with the front linkage of the four linker, and the other with the upper lever of the linkage. A hydraulic unit is installed on one upper lever of the linkage mechanism, and on the other - a cutoff device (see ed. St. No. 1537829, E21D 23/00, 1990) - is taken as a prototype.

The known solution has the same disadvantages as the author. testimonial. No. 1366643, which worsen the conditions for managing the support, do not allow the transportation of the sections of the powered support in the folded position together with the control unit and carry out work on the extraction of coal in the lavas having disturbed coal seam.

The invention solves the problem of improving the conditions for managing the support in compliance with the area of location of frequently used controls according to the general ergonomic requirements when performing work while standing, eliminating installation and dismantling due to the symmetrical design of the command unit and the possibility of transporting sections of the powered support in the folded position together with the command unit , if possible, work on the extraction of coal in the lavas having violations of the coal seam.

To achieve the specified technical result, in the section of mechanized support, including a visor, overlap and base, interconnected by hydroracks and a four-link articulated arm, consisting of front and rear levers pivotally attached at one end to the ceiling, and the other to the base, the command unit includes a frame consisting from two sidewalls, jumpers and walls. At the top, on the obstructed side of the section, a shield is pivotally mounted on the side of the frame, an electro-hydraulic unit, a section control post and a terminal box are mounted on the frame between the sides, and control units with handles are installed symmetrically relative to the frame on vertical panels attached to brackets that are rigidly connected to frame, and at the bottom of the frame by means of axes connected to a bracket mounted on the base of the lining section with the possibility of rotation towards the bottom, and in the middle of the frame levers are mounted pivotally of the connections with pins disposed on the base lugs, wherein the levers have longitudinal and transverse grooves. At the top, on the obstruction side of the section, the sidewalls of the frame and the shield have bevels.

The causal relationship between the totality of the claimed essential features of the invention and the achieved technical result is as follows.

Signs "command unit includes a frame, which is made of two sidewalls, jumpers and walls, at the top, on the block side of the section, a flap is articulated on the sidewalls of the frame, an electro-hydraulic unit, a section control post and a terminal box are installed between the sidewalls, and control units with the handles are installed symmetrically relative to the frame on vertical panels that are attached to the brackets, the brackets are rigidly connected to the frame "allow to provide improved working conditions for the management of the lining in compliance with the zones s placement of frequently used controls according to general ergonomic requirements when performing work while standing, as well as compactly place a large number of hydraulic equipment on the command unit.

The signs "the bottom frame through the axes is connected to the bracket, which is mounted on the base of the lining section with the possibility of rotation towards the bottom, levers are installed in the middle of the frame, pivotally connected to the pins located on the base ears, while the levers have longitudinal and transverse grooves" installation and dismantling work due to the possibility of transporting a section of powered roof supports in a folded position together with a command unit, and also provide the ability to carry out coal mining lavas with violations of the coal seam.

The sign “at the top, from the obstructed side of the section, the sidewalls of the frame and the flap have bevels” makes it possible to ensure, at the optimum angle of inclination of the block, the command gap between the overlap and the command block with the fully folded section of the powered roof support, which makes it possible to transport them together.

The proposed section of powered roof supports is illustrated by drawings.

Figure 1 shows a section of a powered roof support with a command unit in the working position (side view); figure 2 shows a section of powered roof supports in the transport position (side view); figure 3 is a side view of the command block; figure 4 is a view of a block command in figure 3.

The mechanized roof support section includes a ceiling consisting of a top 1 with a visor 2, a guard 3, a base 4, a four-link articulated arm consisting of front levers 5 and rear 6, pivotally attached at one end to the fence 3, and the other to the base 4. Between the upper 1 and the base 4 is equipped with a hydraulic stand 7. On the dam side of the lining section under the guard 3, the command unit 8 (Fig. 1) is installed on the base 4, which includes a frame 9, consisting of two sidewalls 10, 11, jumpers 12 and walls 13. On the frame between sidewalls 10, 11 installed elek the hydraulic unit 14, the control station for the section 15 and the terminal box 16. The control units with handles 17 are mounted symmetrically relative to the frame 9 on vertical panels 18 attached to the brackets 19, which are rigidly connected by a bolt connection 20 to the frame 9. At the bottom of the frame 9 by means of axles 21 and bolted connections 22, 23 connected to the bracket 24, mounted on the base of the 4 sections of the lining. In the middle, on the frame 9, levers 25 are mounted pivotally connected with pins 26, 27 located on the eyes 28, 29 of the base 4. The levers 25 have longitudinal 30 and transverse 31 grooves.

At the top, from the obstruction side of the section, the sidewalls 10, 11 and the shield 32 mounted on them have a bevel 33.

Sleeves 34 are connected to the electro-hydraulic unit 14 and control units with handles 17, which are then connected to the hydraulic posts 7 and actuating hydraulic cylinders 35 ... 40 of the movable section. In the sidewalls 10, 11 of the frame 9 and in the longitudinal grooves 30 of the levers 25 bolted connections 41, 42 are installed.

The work of the lining section is as follows.

After mounting the lining sections, on the obstructive side, under the guard 3, a command unit 8 is installed on the base 4. Sleeves 34 are connected to the electro-hydraulic unit 14 and control units with handles 17, which in turn are connected to hydraulic stands 7 and actuating hydraulic cylinders 35 ... 40 movable section, i.e. It provides power to the working fluid of the movable section and its control from a neighboring, moved section.

When working in lavas having a violation of the coal seam, when it becomes necessary to significantly reduce any sections of the lining and to provide a gap between the fence 3 in the vicinity of the shield 32, command block 8, the latter is turned around the axes 21 towards the bottom to the transverse groove 31 and fixed it in this position with bolted connections 41, 42, having previously removed the bolted connections 22, 23, unlocking the frame 9 with the bracket 24. After passing the violation of the coal seam, the command unit is installed in its original working Assumption.

When transporting the section of the powered roof support in its folded position together with the command unit 8, the latter is rotated towards the bottom by an angle proportional to the length of the longitudinal groove 30 of the levers 25, and fixed rigidly by their bolted joints 41, 42 (Fig. 2).

The installation of the stationary command unit on the mechanized lining section provides improved conditions for managing the lining in compliance with the area of location of frequently used controls, thereby ensuring ergonomic requirements for standing work.

The symmetrical arrangement of the control units with handles relative to the frame 9 in the command unit 8 allows to minimize the amount of work when remounting from one face to another, which is very economically advantageous.

Claims (2)

1. Mechanized lining section, including a visor, overlap and base, interconnected by hydroracks and a four-link articulated arm, consisting of front and rear levers pivotally attached at one end to the ceiling and the other to the base, command unit, characterized in that the command unit includes a frame, which is made of two sidewalls, jumpers and walls, a shield is pivotally mounted on the sidewalls of the section at the top of the block side of the section, an electro-hydraulic unit is installed on the frame between the sidewalls, a control post section and the terminal box, and control units with handles are installed symmetrically relative to the frame on vertical panels that are attached to the brackets, the brackets are rigidly connected to the frame, and the frame below is connected via axles to the bracket, which is mounted on the base of the support section with the possibility of rotation to the side face, in the middle of the frame mounted levers pivotally connected to the pins located on the eyes of the base, while the levers have longitudinal and transverse grooves. 2. The section of powered roof supports according to claim 1, characterized in that the top side of the section of the sidewall of the frame and the flap have bevels.

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