Boring rig

FIELD: mining, particularly boring rigs adapted to drill blast-holes during mine boring and lining.

SUBSTANCE: boring rig comprises rotator movably installed on guiding frame and provided with feed drive including friction pulley and flexible member passing over the pulley. The flexible member is connected to tightening device and is made as working and idle threads enclosing friction pulley. The friction pulley includes parts having different diameters. Working thread passes over pulley part having smaller diameter in one winding direction. Idle thread encloses pulley part having greater diameter in opposite winding direction. Some ends of working and idle threads are fastened to frame, other ones are connected to tightening device and may be alternately tightened.

EFFECT: increased efficiency of drilling operations due to provision of forced rotator movement in initial position after backward drilling operation.

3 cl, 1 dwg

 

The invention relates to the mining industry, in particular to the structures of devices designed for drilling when drilling and fastening mining.

Known drilling machine containing the guide column mounted on it is movable in the longitudinal direction of the rotator with the feed drive, including leading a drum on which is wound a rope, the end of which is connected to the housing of the column, and the tripping mechanism kinematic connection of the rope with the feed drive [1].

The disadvantages of the known device are as follows:

1. Due to the fact that the operating handle mechanism for tripping the feeder is located on the rotator (mining drill ETA D-2M)to return the last after drilling down, you must get a hand to the handle, which is not always easy due to the large height of the output.

2. In the drilling process when the rope winding on the drum "pie" arbitrarily changing the radius of the winding, and therefore arbitrarily changes the feed rate, which leads to violations of drilling and breakage of the drilling tool.

The closest technical solution is a drilling machine that contains movably mounted on the guide frame rotator with the feed drive including a friction disk and covering his flexible element connected with the tensioning device [2].

Money Boo is to be placed, made on the principle that technical solutions are of small weight and dimensions, easy to manage and provide high speed return stroke rotator down under its own weight.

Along with the above-noted advantages, a significant drawback of these tools drilling is the lack of a mechanized force stroke rotator ago (in initial position), making it difficult, for example, removing the drill stem from the hole when its random jamming or return rotator ago when drilling horizontal and top-down holes. This greatly reduces the efficiency of drilling operations.

The aim of the invention is to improve the efficiency of drilling operations by providing forced departure of the rotator after drilling back to its original position.

This objective is achieved in that the flexible element is made in the form of covering the friction disk of the working and idle threads, a friction disk made from portions of different diameters, with the working thread around the area of the friction disk with a small diameter in the same direction of winding, and the idle thread around the area of the friction disk with a larger diameter in the opposite direction, one ends of the working and idle threads are fastened to the frame and the other connected to the tensioning device with alternating tension is Oia, moreover, the tensioning device may be made in the form of an articulated set of levers, the free ends of the filaments thus secured in spaced on opposite sides of the axis of rotation of the nodes of the lever, and the machine can be equipped with activator reverse.

Unlike well-known in the recommended design of the drilling machine the return of the rotator in the original position is not under their own weight (when drilling up), and is forced by the feed mechanism. This ensures efficient drilling holes in any direction and facilitates removing the drill stem from the hole when it is jamming.

The invention is illustrated in the drawing, which shows a schematic diagram of a drilling machine.

The drilling machine includes a guide frame 1, movably installed on the rotator 2 with the feed drive. In the spindle rotator 2 set the drill rod 3, supported by a steady rest 4. The feed drive includes a friction disk 6 and covering it in opposite directions working 7 blank 8 strands (cable), the left ends of which (according to the drawing) fixed to the frame 1, while the right is connected with the tensioning device. As one of the possible different options adjustable tensioning device presents the most obvious option with the control lever 5 pivotally mounted on the axis O. is located on opposite sides of the axis of rotation of the nodes P and X fixed the loose ends 7 working and idle 8 threads. Moreover, the working thread around 7 plot of the friction disk 6 with a small diameter d in the same direction of winding, and the idle thread 8 around the plot with a large diameter D, but in the opposite direction. To speed up the idle speed of the rotator on the frame 1 can be installed spring-loaded battery 9, working in compression, and in the case of rotator incoming installed in contact with the stock battery the stop 10. Through their contact compression spring battery and there is a force tending to move the rotator ago (to the right according to the drawing). This is one of the possible options activator reverse rotator.

Principle and procedure are as follows. The machine is oriented to the axis of the proposed borehole. The handle 5 is in the neutral position, in which the stretch of both strands 7 and 8 missing. The inclusion of the rotator 2 is driven spindle drilling rod 3 and the friction disk 6. Due to the fact that threads are loosened, rotation of the friction disk 6 is empty, without rewinding threads. The rotator is in place and drilling does not occur. To enable filing the operator presses the lever 5 downward (along arrow according to the drawing), which makes it swinging around the axis O, pull the working thread 7 and simultaneously weakens the idle thread 8. The friction disk 6 starts rewinding working thread 7 is via myself than delivery of the rotator with the drill rod is in the process of drilling. After drilling the hole, when the rotator reaches the leftmost position, the operator moves the lever 5 upward, turning around the axis O, weakens the working thread 7 and simultaneously pulls the idle thread 8. The friction disk 6 starts to rewind idle thread 8 through itself, and the rotator 2 drilling rod 3 moves to the right, in its original position. The ratio of the working and idle feed speeds in proportion to the ratio of the diameters d and d of the winding of the working and idle threads. Actuation of the activator reverse occurs as follows. When moving the rotator in the drilling process (to the left according to the drawing) by pressing the stop 10 on the stock battery 9 is the spring compression, i.e. charging the battery. In the process of turning the handle 5, the tension on the working yarn 7 is attenuated. During the period of both strands remain weak - they do not hold the rotator. At this point the force of the compressed spring of the battery through the rod and the stop 10 rotator pushes back (to the right according to the drawing). The speed and distance traveled while the rotator, depend on the parameters of the battery. At the end of the movement of the rotator from the effects of the battery further rotation of the handle 5 NAT is givesa idle thread 8, which comes in contact with the friction disk 6. The remaining period to full speed ADF rotator passes through the rotation of the friction disk 6.

Comparison of the recommended drilling rig with a base object, namely, with the currently used drilling machines type BU-1 screw feed, shows that the application of the recommended and the concept greatly simplifies the design, reduces the complexity of manufacture and provides the ability to establish effective drilling machines of the new generation.

Sources of information

1. Karetnikov, VN, Kleimenov V.B. have been, Nordichi A.G.

The fastening of the capital and preparatory workings. Handbook - M.: Nedra, 1989 - s-481.

2. EN 2256761, CL EV 3/00, E21B 19/084, 20.07.2005, bull. No. 20.

1. Drilling rig containing movably mounted on the guide frame rotator with the feed drive including a friction disk and covering his flexible element connected with the tensioning device, characterized in that the flexible element is made in the form of covering the friction disk of the working and idle threads and the friction disk made from portions of different diameters, with the working thread around the area of the friction disk with a small diameter in the same direction of winding, and the idle thread around the area of the friction disk with a larger diameter in protivopoltavlenie, and one of the ends of the working and idle threads are fastened to the frame and the other connected to the tensioning device with alternating tension.

2. Drilling machine according to claim 1, characterized in that the tensioning device is designed in the form of an articulated set of lever, with the free ends of the threads are secured in spaced on opposite sides of the axis of rotation of the nodes of the lever.

3. Drilling machine according to claim 1, characterized in that it is equipped with activator reverse.



 

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FIELD: mining industry.

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FIELD: mining industry.

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3 cl, 3 dwg

The invention relates to the field of operation and servicing of oil wells using a continuous steel pipes and rods

The invention relates to the field of operation and servicing of oil wells, and is intended for lowering and lifting a continuous steel pipe

Drilling device // 2245982

FIELD: mining industry.

SUBSTANCE: device has slanting frame with lower rotation drive and localizer, clamps of drilling pipes, stacks for storing drilling pipes. Conveyor is mounted on slanted frame, having adjustable drive, while clamps of drilling pipes having elevator links are fixed to conveyor branches, as well as open localizers and upper drive-swivel, and stacks for storing drilling pipes are placed along movement of conveyor in its upper portion. Upper end of drilling column is placed in well pipeline. At the end of stacks for storing drilling pipes a vehicle is placed with clamps for pipes to provide additional traction force and performing hoisting operations for drilling stalks consisting of several drilling pipes.

EFFECT: higher efficiency.

3 cl, 3 dwg

Drilling plant // 2247213

FIELD: mining industry.

SUBSTANCE: drilling device includes a rotator and hoisting gear, consisting of two force hydraulic cylinder with separator ring between them, through which rod passes, provided with pistons mounted in cylinders. Hoisting mechanism also includes fixed and moveable rollers and flexible links. Moveable rollers are placed inside the hollow of force cylinders and are fixed on outer surfaces of pistons, and fixed ones - on outer surfaces of end covers of cylinders. Force cylinders are made of different diameters, while cylinder for hoisting drilling columns greatest diameter. Plant is provided with two bars, fixed on upper and lower end covers and made in form of guides for rotator, separator ring and end covers are provided with fixing assemblies on front and back supports of post and hydraulic cylinder for raising the post to working position.

EFFECT: higher efficiency, simplified construction.

3 dwg

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FIELD: mining industry.

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EFFECT: higher reliability.

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FIELD: mining industry, particularly devices specially adapted for blasthole drilling during sinking and supporting mine tunnels.

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EFFECT: increased efficiency of blasthole drilling.

1 dwg

Boring rig // 2300616

FIELD: mining, particularly boring rigs adapted to drill blast-holes during mine boring and lining.

SUBSTANCE: boring rig comprises rotator movably installed on guiding frame and provided with feed drive including friction pulley and flexible member passing over the pulley. The flexible member is connected to tightening device and is made as working and idle threads enclosing friction pulley. The friction pulley includes parts having different diameters. Working thread passes over pulley part having smaller diameter in one winding direction. Idle thread encloses pulley part having greater diameter in opposite winding direction. Some ends of working and idle threads are fastened to frame, other ones are connected to tightening device and may be alternately tightened.

EFFECT: increased efficiency of drilling operations due to provision of forced rotator movement in initial position after backward drilling operation.

3 cl, 1 dwg

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