SU757682A1 - Holder for drilling rods - Google Patents

Description

The invention relates to the mining and oil and gas industry, in particular to devices for storing and feeding drill rods on the axis of drilling, i.e. cassettes for drilling 5 rods.

Known cassette for drill rods, which is a cylindrical body with lids, in which is mounted a rotary shaft with a turning mechanism, rod-driven sprockets with disks, freely mounted on a rotary shaft, a manipulator with a movable cross-bar and grippers of rods, associated with a rotary shaft. 1ί scrap [ί]. '

Since the cassette and drilling machine have independent drives, while working in automatic mode, the cas-2ί set continues to feed the rods when the engine of the drilling machine is turned off, which leads to breakdowns and reduced reliability of the device.

Also known is a cassette for drill rods2ί, comprising a housing and a rod feed drive, including a rotary shaft and a pin drive mechanism, made in the form of sprockets, connected by chains with toolholders and · ES

2

This device can operate in a mode that depends on the operation mode of the remaining units of the drilling rig, i.e. when the drill machine motor is off, the cassette continues to operate, causing equipment failure.

The purpose of the invention is to improve the reliability of the device by providing the possibility of blocking the drive of the cartridge from the reducer of the drilling machine.

This goal is achieved by the fact that the cassette is equipped with an additional rotary shaft connected to the main rod-driving chain, with one of the rotary shafts kinematically connected with the gearbox of the drilling machine.

FIG. 1 shows a cassette, a general view; in fig. 2 is the same, top view in FIG. 3 is the same, front view, in FIG. 4 is a kinematic diagram of the connection of the cassette with the gearbox; FIG. 5 scheme of inclusion (disconnection) of the rotary shaft of the cassette from the gearbox of the drilling machine.

The boom cassette has a rectangular body 1, at opposite ends of which in brackets 2

3

757682

four

installed rotary shafts, respectively driven 3 and leading 4.

The sprockets 5 are fixed on the shafts, which are connected by a chain 6. The chain is equipped with holders 7 for the rods 8 and the support lamps 9 ·. for supplying the rods 8 to the drilling axis ”0" and then installing them in the chuck 10 of the drilling machine, the pillars 11 of the cassette are equipped with manipulators 12 having movable traverse 13 and grippers 14 for the rods 8. Rotation of the manipulator 12 is performed by a hydraulic cylinder 15. The rotary shaft 4 is kinematically connected through gear 16 with the gearbox 17 of the drilling machine. ·

The gear 16 on the splines mounted cam shaft 18, which is also the core of the electric, magnet 19. Springs 20, leaning on the ring 21, are used to disengage the camshaft 1.8 with the rotary shaft 4. The cover 22 is mounted on the hinges 23 and has a spring-loaded pad 24, pressing the rod and lights to the holder 7. Reversing the rotation of the rotary shaft 4 when disassembling the drill rod is a hydraulic motor 25. The device works as follows.

To fill the cassette, the cover 22 rotates at the hinges 23, and the rods 8 with the lantern 9 fit into the holders 7. Then the lid '22 closes and the spring-loaded platform 24 presses the rods and the lantern to the holders 7. The electromagnet 19 turns on and the cam shaft 18 enters gearing with the rotary shaft 4. Thus, the rotation is transmitted from the gearbox 17 through the gear 16, the splines and the camshaft 18 to the drive shaft 4 and sprockets 5. The chain 6 receives translational motion and delivers the rod 8 to the manipulator 12. The movable traverse 13 carries grips 14 serving A gripping and holding rods.

To issue the rod on the axis of drilling "0" by the power cylinder 15, the manipulator 12 is rotated to the right in the direction of the arrow "a". When this rod 8 is clamped by the grippers 14.

Next, there is a turn to the left, and the rod is fed to the drilling axis "0". After the rod is accepted by the drilling machine, the cylinder 15 moves backward in the direction of the arrow "a" and the manipulator 12 with the grippers 14 moves to its original position. Chain 6 delivers the next bar. Next. The cycle repeats.

When dismounting a drill rod, the cassette works in the reverse order.

The kinematic connection of the rotary shaft of the cassette with the gearbox of the drilling machine increases the reliability of the device, since when the engine of the machine is turned off, the cassette stops working. The rectangular shape of the cassette increases compactness, and its location along the production does not clutter the cross-section of the drift, which favorably affects the conditions of ventilation and transportation of equipment. Also increases without the danger of working. The ability to use the support lamps, they are time consuming to install them

Claims (1)

Claim A cassette for drill rods, comprising a housing and a drive for feeding rods, including a rotary shaft and a stem mechanism, made in the form of sprockets connected with chains with holders, in order to increase the reliability of the device by ensuring that the cassette drive is blocked from reducer of the drilling machine, it is equipped with an additional rotary shaft connected to the main rod-driving chain, with one of the rotary shafts kinematically connected with the reducer of the drilling machine.