RU2418169C1 - Shaft loading machine - Google Patents

Abstract

FIELD: mining.

SUBSTANCE: shaft loading machine consists of radial telescopically extension-type frame of box construction, which consists of middle main part of inverted T-shaped construction and two telescopically extension-type side parts with extension hydraulic jacks arranged inside them. On flanges of middle main part there arranged is self-propelled truck to which telescopically extensible handle is attached with possibility of restricted angular turn by means of two control hydraulic jacks hinged to self-propelled truck and to telescopically extensible handle. Handle consists of main and telescopically extensible parts and connected to each other by hydraulic extension jack arranged inside telescopically extensible part. Controlled grab bucket is hinged on lower end of telescopically extensible part with possibility of angular turn. Self-propelled carriage of angular movement is located on annular monorail mounted on upper part of suspension downhole casing. Independent movement of machine in vertical plane separately from sinking platform is performed by means of two-drum small-size winch mounted on outer side of upper storey of sinking platform, and movable central axis.

EFFECT: increasing drilling rates of vertical shafts, and improving discharge efficiency of rock mass.

7 dwg

Description

The invention relates to mining and is designed to increase the rate of penetration of vertical shafts, carried out by a blasting method and achieved through the autonomy of the barrel loader with a central suspension relative to the tunnel shelf, as well as to reduce the size range of the radial frame.

The proposed barrel loader with a central suspension of the radial frame and a handle equipped with a controlled grab allows mechanizing the processes of loading and cleaning the bottom of the barrel in the last phase with the possibility of using one standard size of the radial frame for sinking shafts of different diameters, as well as changing the height distance between the shaft loading machine and a tunneling regiment in the process of performing a tunneling cycle.

Known loaders Blayer and "Victor" with a central suspension of the grab frame according to N. A. Malevich. Machines and complexes of equipment for sinking vertical shafts. M .: Nedra, 1975, p.73, 74. These machines have a frame made in the form of a lowering arrow, suspended on a hinge from the turret of the machine. This is their main advantage.

The disadvantages are that the frame is rigid in design and, therefore, the machine can be used when carrying out only one barrel diameter. The second disadvantage is that the six-blade grab is suspended on a rope. Such a kinematic connection with the frame (arrow) does not provide a stable position of the grab on the bottom when scooping up rock mass of various sizes (the grab overturns).

The closest in terms of design and operation principle are barrel loaders KS-2u / 40, 2KS-2u / 40, KS-1MA, 2KS-1MA, as well as KSM-2u, known by N.A. Malevich. Machines and complexes of equipment for sinking vertical shafts. M .: Nedra, 1975, p. 59-72. All of these machines, with the exception of KSM-2u, have a similar central suspension. They differ in the number of grabs and the hoist design. KSM-2u differs from other machines in that the hinged suspension of the radial frame is located on a support located on the periphery of the driving regiment. All of the above machines are included as main components in complexes for holding vertical shafts carried out by a blasting method. The principle of operation of all machines in the process of unloading the rock mass from the bottom of the barrel is the same.

The designs of these machines have common drawbacks, which are expressed in the fact that, firstly, when changing the diameter of the barrel (in addition to replacing the annular monorail), it is always necessary to replace the radial frame; secondly, with a delay in installation work carried out from the top floor of the driving regiment, the loaders are not able to follow the descending face of the destroyed explosive breaking of the rock mass. In this case, the process of controlling the grab is much more complicated both when capturing the rock mass and when unloading it in a tub.

The third disadvantage is that the rope suspension of the grab does not provide the necessary pressure on the dump of the rock mass while scooping, as well as its stability at the bottom. These disadvantages increase with increasing distance from the driver's cab to the grab. These shortcomings reduce labor productivity and, consequently, the rate of penetration of trunks.

Based on the foregoing, there is a need to develop a structural scheme for a shaft loading machine with a central suspension and included in the tunnel complex, but having the ability to autonomous vertical movement relative to the tunnel shelf, which is the basis of the tunnel complex. Such a barrel loader should provide the necessary efforts for the introduction of the rock mass into the dump and ensure its stability at the bottom. In addition, the design of the machine must be capable of unloading the rock mass into vehicles when sinking vertical shafts of different diameters in a certain range without additional installation and dismantling work.

The objective of the present invention is to develop the design of a barrel loading machine with a central suspension, which allows high-efficiency unloading of rock mass to the entire depth of the destroyed rock mass and stripping of the face in the last phase of loading with the possibility of autonomous vertical movement relative to the tunnel shelf, temporarily unfastened in the trunk, and the ability application without additional installation and dismantling work in vertical shafts of different diameters in a certain range without h replace the size of the radial frame.

According to the invention, the tasks are achieved in that the barrel loader with a central suspension, including a radial box-shaped structure, at the opposite ends of which are mounted a self-propelled carriage of circular movement along the annular monorail and a hinge for fixing on the central axis; the handle with a pivotally mounted grab mounted on its lower end and provided with two control jacks is characterized in that the radial box-section frame is telescopically extendable and consists of a middle main and two telescoping end parts located on both sides of the main part. Inside the telescopically sliding parts mounted sliding jacks with the possibility of maximum expansion. The main part is made in the form of an inverted letter T, on the shelves of which there is a self-propelled cart. The handle is pivotally attached to the self-propelled carriage with the possibility of limited rotation in the radial direction using two control hydraulic jacks located in the same plane on both sides of the handle. The handle is made telescopically sliding and consists of the main and telescopically sliding parts. The telescopic extension of the handle is carried out by means of a hydraulic jack located inside the telescopically sliding part. A grapple controlled by two hydraulic jacks is pivotally mounted at the lower end of the telescopically sliding part with the possibility of circular rotation relative to the suspension axis by placing the control hydraulic jacks at spatial angles to each other. The self-propelled carriage for circular movement of the stem loader is located on the annular monorail mounted on the upper part of the suspended bottom-hole formwork, and the autonomous vertical movement of the stem loader separately from the tunnel shelf is carried out by means of a small double-drum winch mounted on the outer side of the upper floor of the tunnel shelf and the central the axis on which the hinge of the radial telescopically sliding frame is placed, and the central axis has zmozhnost reciprocating motion in the vertical direction within the central support shelf tunnel formed hollow.

Significant differences are:

1. A barrel loader with a central suspension, including a box-shaped radial frame, at the opposite ends of which are mounted a self-propelled carriage of circular movement along the annular monorail and a hinge for fixing on the central axis, characterized in that the radial frame is made telescopically sliding. It consists of a main middle and two telescopically sliding parts located on both sides of the main part. In this case, telescopic sliding is carried out by hydraulic jacks located inside the telescopically sliding parts with the possibility of maximum sliding.

A radial telescopically sliding frame with telescoping telescoping retractable parts is used when driving vertical shafts of the smallest diameter in the allotted range. The maximum barrel diameter for a certain size of the radial telescopically sliding frame is achieved when one of the two telescopically extendable parts is fully extended.

The inverted T-shaped design of the main part allows the installation of a self-propelled cart on it.

2. A telescopically sliding handle mounted pivotally on a self-propelled truck with a telescopic mounted pivot mounted on the lower end of the controlled grab creates the necessary pressure forces on the grab when scooping and provides a wide range of sliding due to the placement of the hydraulic jack inside the telescopically sliding part, and the upper control hydraulic jacks allow limited angular rotations in the plane of the radial frame.

3. A grab controlled by two hydraulic jacks can select the most rational place for scooping up the rock mass, with the possibility of circular rotation.

4. A double-drum small-sized winch mounted on the outer side of the upper floor of the shelf, and a central movable axis for hinging a radially telescopic sliding frame to it allow vertical movement of the barrel loader relative to the tunnel shelf together with the bottom-hole formwork, which descends after the dump of rock mass, as well as rise to the tunneling regiment before blasting.

The invention is illustrated by drawings.

Figure 1 is a General structural diagram of a barrel loading machine with a central suspension in conjunction with a tunneling shelf and hanging bottom-hole formwork.

Figure 2 is a General view of a radial telescopically sliding frame.

Figure 3 - hydrokinematic structural diagram of a telescopically sliding handle.

Figure 4 - hydrokinematic structural diagram of a telescopically sliding frame.

5 is a General view of the design of the moving Central axis.

Figure 1 presents a General structural diagram of a barrel loading machine with a central suspension in conjunction with a tunneling shelf and hanging bottom-hole formwork. It consists of a radial telescopically sliding frame 1, which is attached to the hinge 2 on the movable central axis 3 on the inside and the outer to a self-propelled carriage of circular movement 4. A self-propelled carriage 5 moves along the middle part of the radially telescopically sliding frame, to which a telescopically sliding hinge is attached handle 6. At the lower end of the handle 6, a controlled grab 7 is mounted pivotally with two control hydraulic jacks spaced apart at a spatial angle 8. Telescopically sliding ukoyat 6 by means of two jacks 9 has the possibility of a limited angular rotation in the radial plane of telescopically sliding the frame 1.

A small two-drum winch 11 is mounted on the outer side of the upper floor of the driving shelf 10. The winch 11 is used to autonomously move the stem loader vertically (lowering and lifting) separately from the driving shelf 10. The double-drum winch 11 is periodically connected through its ropes 12 and 13 through the block 14 with a self-propelled carriage of circular movement 4, and through the rack 15 and the block 16 is constantly connected with the Central movable axis 3.

The movable axis 3 passes through the hollow central support 17 of the driving shelf 10, at the bottom ends with a stop 18 serving as a limiter (fuse) for the hinge 2 of the radial telescopically sliding frame 1 with the movable axis 3. On the main part of the radial telescopically sliding frame 1, the driver’s cab 19 is mounted .

Self-propelled carriage of circular movement 4 moves along the annular monorail 20 mounted in the upper part of the suspension formwork 21.

Figure 2 presents the General structural diagram of a radial telescopically sliding frame 1. It consists of a main part 22 and two opposite telescopically extendable parts 23 and 24. At the outer ends of the latter are flanges 25 and 26, used for mounting a self-propelled carriage of circular movement 4 and hinge 2 (figure 1). On the main part 22, made in the form of an inverted T-shaped structure, shelves 27 are located on the sides for moving self-propelled carts 5.

Figure 3 presents a constructive hydrokinematic diagram of a telescopically sliding handle 6. The handle 6 consists of a main 28 and telescopically sliding 29 parts interconnected by a hydraulic jack of the telescopic sliding 30. The sliding hydraulic jack 30 is placed inside the telescopic part 29, which ensures maximum telescopic extension. The grab 7 (Fig. 1) is connected to the telescopically sliding part 29 by means of a ball or double (cardan) hinge 31. The same type of joint is used to connect the control hydraulic jacks 8 with racks 32, rigidly mounted on the telescopically sliding part 29 of the handle 6.

Figure 4 presents a constructive hydrokinematic diagram of a radial telescopically sliding frame 1. It consists of a middle main part 22 and two telescopically sliding parts 23 and 24 with the opposite direction of extension. The telescopic sliding of the radial frame is carried out using two oppositely acting hydraulic jacks 33 and 34, placed inside their telescopically sliding parts.

Figure 5 presents a General view of the movable Central axis 3, on which there is a longitudinal slot 35. In the hollow central support 17 inside there is a corresponding form of a protrusion (short slot), which prevents the rotation of the axis during its longitudinal movement. An eye 36 is rigidly mounted on the upper part for connection with the rope 13.

The principle of operation of the barrel loader with a central suspension

1. Carrying out the smallest vertical shaft for a given size of the radial telescopically sliding frame 1. The barrel loading machine unloads the rock mass with telescopically extendable parts 23 and 24 fully retracted.

2. Holding a barrel of a larger diameter (usually the diameters of the trunks vary by 0.5 m), the radial telescopically sliding frame 1 is first placed in the barrel with the telescopic part 23 fully coupled inward, coupled to the movable central axis 3 by the hinge 2, and the second telescopically extending part 24 extends and, associated with it, a self-propelled carriage of circular displacement 4 by its rollers is mounted on the annular monorail 20 of the suspended bottom-hole formwork 21 (Fig. 1).

As the rock mass is unloaded in the central zone of the barrel, the middle main part 22 of the radial telescopically sliding frame 1 moves toward the self-propelled carriage 4 due to the multidirectional movement of the telescopic sliding jacks 23 and 24 (Fig. 4). After moving the main part 22, the unloading of the rock mass is carried out in the peripheral zone of the barrel.

3. After unloading (harvesting) the rock mass along the entire cross-section of the barrel to a depth equal to the magnitude of the telescopic extension of the handle 6, the central loading axle of the barrel loader moves to such a position that the radial telescopically sliding frame 1 with its self-propelled carriage of circular movement 4 takes place under the tow hitch rope 12 (position I). The simultaneous lowering of the bottom-hole formwork 21 by means of its sinking winches mounted on the surface and a small-sized double-drum winch 11 is performed (Fig. 1). At the end of these operations, the rope 12 is disconnected from the self-propelled carriage of circular movement 4 (position II), and the process of unloading the rock mass resumes.

Before blasting, a barrel loader with a central suspension takes a certain place and, after connecting with a rope 12, rises to the shelf 10.

Claims (1)

A barrel loader with a central suspension, including a radial frame, at the opposite ends of which are mounted a self-propelled carriage of circular movement along the annular monorail and a hinge for fixing on the central axis; a handle and a grab pivotally mounted on its lower end, characterized in that the radial box-shaped frame is telescopically extendable and consists of the middle main part of an inverted T-shaped structure and two telescopically extendable lateral parts with sliding sliding jacks inside and on the shelves of the middle main part a self-propelled cart is placed, to which the handle is pivotally attached with the possibility of limited angular rotation in the radial direction by means of two control hydro jacks, and the handle itself is made telescopically sliding and consists of the main and telescopically sliding parts, while the telescopic sliding is carried out by means of a hydraulic jack located inside the telescopically sliding part, and a grab controlled by two spatially separated hydraulic jacks is pivotally mounted with the possibility of circular rotation relative to the suspension axis, while the self-propelled carriage of circular movement is located on the annular monorail, mounted mounted on the upper part of the suspended bottom-hole formwork, and the autonomous movement of the barrel loader vertically separately from the tunnel shelf is carried out using a two-drum small-sized winch mounted on the outer side of the upper floor of the tunnel shelf, and a central movable axis on which the hinge of the radial telescopically sliding frame is located, while the central movable axis in this case has the possibility of reciprocating motion in the vertical direction inside the central support ohodcheskogo shelf formed hollow.

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