RU2380542C1 - Lever operation equipment of shaft loader with controlled dipper - Google Patents

Abstract

FIELD: mining.

SUBSTANCE: lever operation equipment of shaft loader with controlled dipper consists of mounting plate with mast erected thereon, of rack-and-gear hydro-jack mechanism of mast rotation, of seat for ball-and-socket hinge, of extended boom hinged on rotary mast, of telescopic extended handle hinged on boom, of controlled six-blade dipper mounted at lower end of telescopic extended part of handle by means of ball-and-socket hinge, of hydro-jacks for turn of extended boom and telescopic extended handle; of two controlling hydro-jacks for six-blade dipper, of two hydro-jacks for transfer of hinged brackets under hydro-jacks of boom and handle turn, of hydro-jack of telescopic extension of handle and of hydro-jack of boom extension. The extended boom of operation equipment is telescopic extended and consists of the main and telescopic parts made in form of rectangular prisms with mutually parallel facets entering one into another. The main and telescopic parts are interconnected with the hydro-jack of telescopic extension installed inside telescopic part and are designed for maximal extension of the main and telescopic parts. A guiding slot for displacement of hinged brackets and hydro-jacks of their transfer as well as guiding beams for directed displacement of the telescopic part are installed in the upper internal gap between the main and the telescopic parts of the extended boom on internal horizontal surface of the main part. The hydro-jack of the hinged bracket displacement for the hydro-jack of turn of extended telescopic handle is mounted on the telescopic part of the extended boom and performs mutual displacements with it. Also value of extension of the telescopic part of the boom is limited with length of run of movable hinged bracket from the utmost back position to an end contracting yoke of the main part of the extended telescopic boom.

EFFECT: improved design of lever mechanism of shaft loaders and increased efficiency.

4 dwg

Description

The invention relates to mining. Designed for mechanized loading of rock mass into vehicles, increasing labor productivity and expanding the scope of application for the diameter of shafts carried out by a blasting method.

The proposed lever working equipment of a barrel loading machine with a controlled grab allows you to mechanize the processes of unloading and cleaning of the rock mass in the last phase of loading, as well as expand the range of diameters of passable shafts.

Known lever working equipment boring machine KS-12 according to N.A. Malevich. “Machines and complexes of equipment for sinking vertical shafts. M .: Nedra, 1975, p. 75-79. Scope of the KS-12 boring machine: trunk depth up to 200 m, diameter 4.5-8.0 m.

The lever working equipment of the KS-12 stem boring machine consists of a rack mounted on a swing trolley moving along a circular monorail; boom pivotally connected to the stand, a rotary handle pivotally mounted on the end of the boom; hydraulic jacks for turns in the vertical plane of the boom and the handle, a pneumatic winch mounted on the upper end of the handle and a six-blade grab suspended on a rope from the pneumatic winch.

The advantages of the working equipment under consideration are a wide range of diameters of serviced shafts that can be drilled and blasted.

The disadvantages include: the lack of rotation of the working equipment in a horizontal plane - reduced maneuverability and productivity; small dimensions of the boom and the handle, which do not allow mounting the working body (six-blade grab) on the free end of the handle for direct capture of rock mass with subsequent unloading in the tunnel bucket; suspension on the rope of an uncontrolled grab leads to its unstable position at the bottom when scooping - a decrease in productivity.

The closest in structural design is the lever working equipment of the barrel loader "Loader", known by N. A. Malevich. Machines and complexes of equipment for sinking vertical trunks: M .: Nedra, 1975, p.57-59.

The lever working equipment of the “Loader” loader consists of a rotary mast with a rack and pinion mechanism with hydraulic rotation, pivotally mounted on the mast of the boom, connected to it by a pivotally rotated handle, a pneumatic winch mounted on the upper end of the handle suspended on a rope to an uncontrolled six-axle pneumatic winch grab and hydraulic jacks for turning the boom and handle in a vertical plane.

The advantages of the considered working equipment include: a wide range of diameters of the conducted shafts (4.5-8.0 m); hydraulic jacks for boom and stick turns, attached to the latter by means of two levers each, allow for large-angle rotations compared to rigid articulation.

The disadvantages include: small dimensions along the length of the boom and handle, which do not allow the installation of a six-blade grab directly to the lower end of the handle for directly scooping up the rock mass and loading it into vehicles; the relatively small angle of rotation of the boom does not allow to obtain a large amplitude of movement of its end together with the handle and to load the rock mass with a grab mounted on the end of the handle to the entire height of the layer of destroyed rock mass from one installation of the loading machine; suspension of a six-bladed grab on the rope leads to its unstable position on the face when scooping heterogeneous crushed rock mass - reduced productivity and the inability to clean the face in the last phase of loading - reduced productivity.

Based on the foregoing, there is a need to develop a structural diagram of the lever working equipment of a barrel loading machine with a controlled grab, which allows grabbing, loading and cleaning of rock mass with a controlled grab to the entire depth of the destruction layer and a wide range of diameters of vertical shafts that can be drilled and blasted.

The objective of the present invention is to develop a more advanced design of the lever working equipment of a barrel loading machine with a controlled grab, which allows loading to the entire depth (thickness) of the layer of destroyed rock mass with stripping of the bottom in the last phase of loading and to be able to use vertical shafts with a wide range of diameters when sinking as well as increased productivity.

According to the invention, the tasks are achieved in that the lever operating equipment of the barrel loading machine with a controlled grab, including a mounting plate with a rotatable mast mounted on it, a rack and pinion hydroshift mechanism for its rotation and a socket under the ball joint, an elongated boom mounted on the rotary mast mounted pivotally connected to it articulated telescopically extendable handle, controlled by a six-blade grab, by means of a ball joint to the lower end, telescopically extendable parts of the elongated handle, hydraulic jacks for turns in the vertical plane of the elongated boom and handle, two control hydraulic jacks with a six-blade grab, two hydraulic jacks of movable hinged brackets, a telescopic hydraulic jack of the extended arm and a hydraulic jack for sliding the extended boom, characterized in that it is extended and telescoping from the main and telescopically sliding parts made in the form of rectangular hollow prisms with mutually parallel g wounds and entering one into another. They are interconnected by a telescopic slide hydraulic jack mounted inside a telescopically extendable part with the possibility of maximum expansion of the main and telescopically extendable parts of the elongated boom. In the upper internal gap between the main and telescopically extendable parts of the boom, there is a guide groove for moving the hinged brackets and placing hydraulic jacks for their movement and guide rails for the directed movement of the telescopically extendable part. In this case, the hydraulic jack for moving the hinged bracket of the hydraulic jack for turning the elongated telescopically sliding handle is mounted on the telescopically sliding part of the elongated boom and, together with it, makes telescopic movements. The magnitude of the extension of the telescopic part of the elongated boom is limited by the stroke length of the movable articulated arm from the extreme rear position to the end tightening clamp (stiffening belt) of the main part of the elongated telescopically extending boom.

Significant differences are:

1. Lever working equipment of a barrel loading machine with a controlled grab, including a mounting plate with a swivel mast mounted on it, a rack and pinion hydraulic jack and a socket under the ball joint, articulated mounted on a swivel mast, an elongated boom connected to it by a telescoping telescopic sliding hinge mounted on the lower end of the telescopically extendable part of the handle by means of a ball joint controlled six-blade grapple, hydraulic jacks for turns at Linen boom and telescopically extendable handle, two control hydraulic jack shestilopastny clamshell, two hydraulic jacks movable hinge brackets, telescopic hydraulic jack razdvizhki elongated handle and hydraulic jack razdvizhki long boom, has an elongate telescopically extendable boom allows the loading of the rock mass in the vertical shafts of different diameters.

2. The lever working equipment has a telescopically elongated boom, consisting of the main and telescopically retractable parts made in the form of rectangular hollow structures (prisms with mutually parallel faces) that enter one another. They are interconnected by a telescopic slide hydraulic jack mounted inside a telescopically extendable part with the possibility of maximum expansion of the main and telescopically extendable boom parts.

3. In the internal gap between the main and telescopically sliding parts of the elongated boom, a guide groove is mounted on the horizontal inner surface of the main part to move the hinged brackets and place hydraulic jacks for their movement and guide rails for the directed movement of the sliding part. The hydraulic jack for moving the articulated arm of the hydraulic jack for turning the elongated telescopically sliding handle is mounted on the telescopically sliding part of the boom and, together with it, makes telescopic movements. Moreover, the extension of the telescopic part of the boom is limited by the stroke length of the movable articulated arm from the extreme rear position to the end tightening collar (stiffening belt) of the main part of the elongated telescopically extending boom.

The invention is illustrated by drawings.

Figure 1. General structural diagram of the lever working equipment of a barrel loading machine with a controlled grab.

Figure 2. Cross section of an elongated telescopically extendable handle (section AA of FIG. 1).

Figure 3. Cross section of an elongated telescopically extending boom (section BB of FIG. 1).

Figure 4. Hydrokinematic diagram of the lever working equipment of a barrel loading machine with a controlled grab.

Figure 1 presents the General structural diagram of the lever working equipment of a barrel loading machine with a controlled grab. It consists of a mounting plate 1 with mounted on it: a swivel mast 2, a rack and pinion hydraulic mechanism 3 for turning the mast 2 and a socket 4 under the ball joint. An elongated telescopically extending boom 5 is pivotally attached to a rotary mast 2, to which an elongated telescopically extending arm 6 is pivotally attached, a controlled grapple 7 is pivotally attached to it. A telescopically extending elongated boom 5 is rotated in a vertical plane by means of a hydraulic jack 8, and the elongated telescopically extending rotation is rotated. handles in the same plane with hydraulic jack 9. The six-blade grab 7 is controlled using two hydraulic jacks 10, its turns in horizontal and vertical planes with fixation of a given position.

The elongated telescopically extending boom 5 consists of a main 11 and telescopically extendable 12 parts. The elongated telescopically extendable handle 6 consists of a main 13 and telescopically extendable 14 parts.

A hydraulic jack 8, which serves to rotate the boom 5, is connected by a ball joint 15 to the mounting plate 1, and the second end to the movable hinge bracket 16. A hydraulic jack 9 to rotate the handle 6 is connected at one end to the movable hinge bracket 17, and the other to the upper end by a single hinge handles 6.

The elongated telescopically extendable handle 6 consists of a main 13 and telescopically extendable 14 parts. Two racks 18 are rigidly attached to the telescopically sliding part 14, to which control hydraulic jacks 10 are connected by means of ball joints 19. The latter are connected with a single hinge with their lower ends to the yoke 20 of the six-blade controlled grab 7. The grab is connected to the lower end of the telescopically sliding part by a ball joint 21 14 of an elongated telescopically extendable handle 6.

In the process of loading the rock mass and with telescopic extension of the handle, the possibility of turning the telescopic part of the handle is eliminated by a through slot 22, rigidly mounted on the telescopic extension part 14 of the handle and moving along the through groove of the main part 13 of the handle 6.

The restriction of the movement of the hinge bracket 17 is carried out by the end coupling clamp 23 mounted on the end of the main part 11 of the boom 5.

Figure 1 shows three different positions of the lever working equipment: I - neutral position - the telescopically sliding boom in the shifted state occupies a horizontal position, and the telescopically sliding arm is vertical; II - telescopically extendable handle in an extended state before scooping up the rock mass; III - telescopic telescoping boom in the extended state for loading rock mass in the trunks of larger diameter.

Figure 2 presents a cross section of a telescopically sliding elongated handle (section AA of figure 1). The handle 6 consists of a main 13 and telescopically telescoping 14 parts, made in the form of tubular structures that enter one another. They are interconnected by means of a hydraulic jack 24 of the telescopic extension of the elongated handle 6, as well as by means of a slot 22, rigidly mounted on the telescopically sliding part 14 and a longitudinal through groove 25, made on the main part 13 of the handle 6.

Figure 3 presents a cross section of an elongated telescopically extending boom 5 (section bb In figure 1). Boom 5 consists of a main 11 and telescopically extendable 12 parts. The main 11 and telescopically sliding 12 parts are made in the form of rectangular hollow prisms with mutually parallel faces and entering one another. The telescopic extension of the boom 5 is carried out by means of a hydraulic jack of the telescopic extension 26. A longitudinal guide groove 27 for the movable hinged brackets 16 and 17 of the hydraulic jacks 8 and 9 of the rotation of the boom and the handle and the guide rails 28, restricting vertical movement, is located in the upper gap between the main 11 and the telescopically sliding 12 parts. (skew) of the telescopically sliding part 12 inside the main part 11. The guide groove 27 is formed by guide longitudinal curly bars 29 and through longitudinal m groove 30 in the upper face of the main part 11 of the elongated boom 5. The movement of the hinge bracket 16 in the guide groove 27 is carried out using a hydraulic jack 31.

Figure 4 presents the hydrokinematic diagram of the lever working equipment of a barrel loading machine with a controlled grab.

The hydraulic jacks of the turns 8 and 9 of the elongated telescopically extending boom 5 and the handle 6 with their lower ends are connected to the movable hinge brackets 16 and 17, respectively. The use of mobile hinge brackets significantly increases the angles of the boom 5 and the handle 6. The hinge bracket 16 is moved in the guide groove 27 a hydraulic jack 31 mounted on the inner surface of the upper horizontal face of the main part 11 of the boom. The hinge bracket 17 is moved in the same guide groove 27 by means of a hydraulic jack 32 mounted on the telescopically extendable part 12 of the elongated boom 5. The maximum telescopic extension of the boom 5 is limited by the stroke length of the movable hinge arm 17 (from the extreme rear position to the end (front) stiffening belt (coupling clamp) 23 (figure 1).

The telescopic extension of the elongated boom 5, which consists of the main 11 and the telescopically extendable 12 parts, is carried out using the hydraulic extension of the extension 26 mounted inside the telescopically extendable part 12. The hydraulic extension of the extension 26 with single hinges is connected at one end to the inner rear surface of the main part 11 and the other to the inner front surface of the telescopically extendable part 12 with the possibility of maximum telescopic extension.

The extension of the elongated telescopically extendable handle 6 is carried out by a hydraulic jack of the extension 24 mounted inside the telescopically extendable part 14 with the possibility of maximum telescopic extension of the main 13 and the telescopically extendable 14 parts of the handle 6.

The principle of operation of the lever working equipment of a barrel loading machine with a controlled grab.

At the initial stage of loading, the lever working equipment, occupying the extreme upper position of the telescopically closed telescopic boom and the vertical position of the telescopic telescopic telescopic handle, is located above the face at a distance slightly higher than the height of the tunnel bucket or other vehicle. Lowering the grab to the bottom, capturing the rock mass and lifting is carried out due to the telescopic extension of the handle and rotation of all working equipment to the location of the tunnel bucket.

Further unloading of the rock mass from the bottom of the barrel is carried out both due to the telescopic extension of the handle, and due to a change in the angle of the boom inclination.

When carrying trunks of large diameters in the process of loading the rock mass, the telescopic extension of the elongated telescopically extending boom is turned on.

Claims (1)

Lever working equipment of a barrel loading machine with a controlled grab, including a mounting plate with a swivel mast mounted on it, a rack and pinion hydraulic jack and a socket under the ball joint, an elongated boom mounted pivotally on a swivel mast, telescopically extended to extend it controlled six-blade grab attached via a ball joint to the lower end of the telescopically extendable part of the elongated arm and, hydraulic jacks for rotations in the vertical plane of the boom and the handle, two six-blade hydraulic jack control grabs, two mobile hinged hydraulic jacks for the hydraulic boom and stick hydraulic jacks, a telescopic hydraulic lifting jack and an extended telescoping sliding hydraulic jack, which has an extended telescopic extension and it consists of a main and telescopically extendable parts made in the form of rectangular prisms with mutually parallel gr and entering one another, and they are interconnected by a telescopic sliding jack mounted inside the telescopically sliding part with the possibility of maximal sliding of the main and telescopically sliding parts, and a guide rail is mounted on the inner horizontal surface of the main part between the main and telescopically sliding parts a groove for moving the hinge brackets and placing hydraulic jacks for their movement and guide rails for directional movement telescopically extendable part, while the hydraulic jack of the hinge bracket of the hydraulic jack of rotation of the elongated telescopically sliding handle is mounted on the telescopically extendable part of the elongated boom and together with it makes telescopic movements, and the magnitude of the extension of the telescopic part of the boom is limited by the travel length of the movable hinge bracket from the extreme rear position to the end tie a clamp of the main part of an elongated telescopically extending boom.

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