SU968317A1 - Drill rod lift - Google Patents

Description

(54) DRILLING ROD LIFT

. . t

The invention relates to the mining industry, in particular, to devices for lifting and re-drilling drill rods from the game site: storage to the drilling rig and back.

A well-known drill rod for drill rods containing a telescopic manipulator mounted on machine tools for drilling wells from the surface l.

This device cannot be used in the cramped conditions of underground mines due to the adopted layout and large dimensions.

The closest solution to the technical essence and the achieved result to the invention is a lift rod D1LYa of drill rods, including a strut with a swivel bracket, boom with bypass rollers, expansion and lifting hydraulic, cylinders with rods and flexible traction body 2.

The disadvantages of the elevator are the small footprint and height change with changing boom range, which reduces labor productivity.

The aim of the invention is to increase productivity

by improving maneuverability and increasing service area.

To achieve this goal, the drill rod lift, including a strut with swivel arm, boom with bypass rollers, expansion and lifting hydraulic cylinders with rods and a flexible traction body, is equipped with an extension hydraulic cylinder and a cross piece, which is installed with the possibility of translational and rotary movement on the stand and in which the boom is fixed by means of the extension hydraulic cylinder, while inside the indicated boom there is a branch of the flexible traction body with an end fixed with Strongly adjustment in length by a rotary arm, and the rod

20 lifting hydraulic cylinder connected to the crosspiece ..

FIG. 1 shows a lift for drill rods, a general view; in fig. 2

25 view A in FIG. 1.

Lift for drill rods consists of a rack 1 with a spacer hydro- cylinder 2, the bottom 3 and the top 4 supports and intermediate spacers

Claims (2)

30 connected to the upper end of the rack 1 and between each other using threaded connections. On the rack 1 with the possibility of raising and lowering the hydraulic cylinder b, a crosspiece 7 is installed, having two crossing bores: vertical for the passage of rack 1 and horizontal for moving the boom 8. It has crossheads 9 at which the axle 10 is attached to the hydraulic cylinder b lifting and opi cant crosspieces. The hydrocylin housing is 6 pivots 11 pivotally connected to the pivoting bracket 12, freely mounted on the rack 1. The bracket 12, through the intermediate sleeves 13, rests on the collar 14 fixed on the rack 1 with the finger 15. The collar 14 is connected to the axle 16 of the hydraulic cylinder 2, On the boom 8 with the help of a finger 17. secured the collar 18, connected by an axis 19 to the hydraulic cylinder 20 of the extension of the boom, connected by an axis 21 to the cross piece 7. At both ends of the arrow by 8 fingers 22 and 23 are fastened with push-rods 26 and 27 on the axis x 28 and 29. Flexible traction body 30 ogiba m two roller arrows and passes through apertures in lugs 24 and 25 through the boom. At one end of the traction body there is a fixed hook 31 with a device for gripping the rods (for example, a chain 32), and the other end of the traction body is fixed with the possibility of adjusting its length on the swivel bracket 12. The length adjustment of the flexible traction body 30 is due to its crossings in the wedge clamp 33. The housing of the hydraulic cylinder 20 is connected by an axis 21 with an eye 34 of the crosspiece 7. The elevator operates as follows. The installation location of the elevator in the subterranean excavation is chosen so that the distance from the pillar 1 to the nearest wall of the excavation is not less than the minimum rig height, and the distance from the pillar to the drilling axis is no more than the maximum reach of the boom. Depending on the height of production, the required number of spacers 5 is connected to the rack 1. Adjusting the height of the lifting rods is done by selecting the number of intermediate sleeves 13 and changing the length of the flexible rod 30 in the clamp 33. Turn on the hydraulic cylinder 2 of the thrust and release the lift between the ground and roofing workings. Lower the crosspiece 7 with the boom 8 by the hydraulic cylinder b in the lower position. Hook 31 or chain 32 seize the bu, level barbell. The hydraulic cylinder b is turned on for boom lift and, if necessary, hydraulic cylinder 20, the boom length is shortened. Manually, by the drill rod, the boom with the crosspiece is turned by the hydraulic cylinder 6 and the swivel bracket 12 to the position above the drilling cartridge (or towards it). The hydraulic cylinder 20 makes an extension of the boom, and the hydraulic cylinder b - lowering the drill rod into the chuck of the machine. In the same sequence, the operations for installing the following rods are performed. When dismantling the drill bits, the operations are performed in reverse order. The adopted layout of the flexible cable body eliminates the need to use a separate polyspatch, since in this case the lifting height of the hooks 31 is twice the stroke of the hydraulic cylinder b lifting. The proposed construction of a lift for drill rods allows its use in the cramped conditions of mine workings through the use of a cross, moving along a vertical stand, and a variable departure of a moving boom. The location of the horizontal branch of the flexible rod body inside the boom prevents it from being damaged by accidental impact from falling pieces of rock. Claims, Drill Rod Elevator, including a strut with swivel arm, boom with bypass rollers, expansion and lift hydraulic cylinders with rods and flexible traction body, characterized in that in order to increase labor productivity by improving maneuverability and increasing the service area The elevator is equipped with an extension hydraulic cylinder and a crosspiece, which is installed with the possibility of translational and rotary movement on the rack, and in which, by means of the hydraulic cylinder, pulling out The replen is an arrow, while inside the indicated boom there is a branch of a flexible rod with an end fixed with the possibility of adjustment along the length on the swivel bracket, and the stem of the lifting cylinder is connected to the crosspiece. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 188411, cl. Е 21 В 3/02, 1964. 2. Burov installation N 68. Assembly; g, ny drawing. Dongipromuglemash, 1978 (prototype). .