RU61772U1 - PORTABLE DRILLING MACHINE - Google Patents

Abstract

The machine for drilling holes contains a spacer column in the form of a telescopic stand with a middle outer and lower and upper inner parts, on which support heels are fixed. A screw thrust mechanism is installed between the lower inner and middle outer parts of the rack, and the chain of the slider feed mechanism with the rod rotation mechanism is fixed on the middle outer and upper inner parts of the rack. Replaceable segments are installed on the upper inner part of the rack in the shape of a section of the middle outer part of the rack. The machine allows you to drill holes from 1.2 m to 2.4 m in different workings with a size of the machine 1.8 ÷ 3 m. 1 sp f-ly; 1 s p. f-ly; 3 ill.

Description

The utility model relates to the mining industry and can be used for drilling in the development of holes for anchor support or for injecting hardening solutions into the rock mass.

A well-known machine for drilling holes with a spacer column of two telescopic parts that are not rotatable relative to each other, on which support heels, feed mechanisms and rotation of the drill rod are fixed. The lower part of the spacer column is equipped with a helm screw (see USSR author's certificate No. 140400, M. Cl. 7 E 21 C 11/10).

The disadvantages of this machine include the need to constantly hold a rotator (manual electric drill) in order to avoid twisting the feed mechanism around the axis of the column. In addition, such a machine can be used in workings of a certain height and for drilling holes of small depth ..

Known portable machine for drilling holes (see patent for utility model RU No. 31966, IPC 7 E 21 B 7/02), which eliminates the disadvantages of the analog in terms of the transfer of reactive torque from the rotator to the soil and the roof of the excavation, but there is a disadvantage in relation to constant length and drilling holes of a certain depth equal to the feed mechanism.

The purpose of the utility model is the ability to change the stroke length of the feeder and the drilling depth of the holes.

In the proposed utility model - a portable machine for drilling holes containing well-known features: mechanisms for rotation and feed of the drill rod mounted on a telescopic stand from the outer and lower inner parts not fixed relative to each other, support heels, screw thrust mechanism, the goal is achieved in that the upper supporting heel and the attachment point of the chain are fixed on the additional upper inner part of the rack, on which replaceable segments are installed in the shape of a cross section of the outer part of the rack.

In addition, the chain mount is made in the form of a sprocket placed between two plates, with a finger lock between its teeth.

Figure 1 and figure 2 shows a side projection of a portable machine, figure 3 is a cross section of a chain attachment.

A portable drill for drilling holes contains a telescopic strut box-shaped section, consisting of a middle outer part 1 located inside its lower inner part 2 with a supporting heel 3 and an additional upper inner part 4 with a supporting heel 5.

On the lower inner part 2 of the rack is installed a portable clamp 6 with a housing 7 of the thrust mechanism.

The rotation mechanism 8 (hydraulic motor) of the drill rod 9 and the chain feed mechanism 10 are fixed on the slider 11 on the middle outer part 1 of the rack.

One end of the chain 12 with the tension bolt 13 is fixed on the outer part 2 of the rack, and the other end with an inlet is mounted on the additional upper inner part 4 using the mount unit 14, which is made of plates 15 on the sides of the sprocket 16 with a finger lock 17 between its teeth.

Between the node 14 of the fastening of the chain 12 and the end of the middle part 1 of the rack on the additional upper inner part 4 are installed various lengths of replaceable segments 18 in the shape of the cross section of the outer part 1 of the rack.

Preparation for operation of a portable machine for drilling holes in the development is as follows.

Depending on the size of the excavation and the desired drilling depth of the holes, the length of the interchangeable section 18 is determined.

Then, the latch 17 of the sprocket 16 is removed and the upper inner part 4 with the chain attachment unit 14 of the chain 12 and the upper supporting fifth 5 are pulled from the outer part 1 of the rack.

Prepared the desired length of segment 17 in the form of part 1 of the rack is installed on part 4 of the rack at the node 14 of the chain attachment, and the end of the upper inner part 4 is pushed into the outer part 1 until it stops.

Then pull the chain 12, install the latch 17 between the teeth of the sprocket 16, produce the final working tension using the tension screw 13 and install the drill rod 9 of the appropriate length.

Supporting heels 3 and 5 are bursting, respectively, between the soil and the roof of the mine using a screw mechanism in the housing 7.

When drilling a hole, the slider 11 with the mechanisms 8 and 10 for rotating and feeding the drill rod 9 sequentially moves first along the outer part 1 of the rack and cut 18, And at the end of drilling, only along cut 18 until it stops in the chain attachment 14.

The design of the machine allows you to drill holes 1.2 to 2.4 m deep, respectively, with the dimensions of the portable machine 1.8 ÷ 3 m with a slight increase in the weight of the portable machine.

Claims (2)

1. A portable machine for drilling holes, including rotation mechanisms and chain feed of the drill rod mounted on a telescopic stand from the outer lower inner parts, which are not rotated relative to each other, support heels, a screw thrust mechanism, characterized in that the upper heel and the chain mount are fixed to additional upper inner part, on which removable segments are installed in the form of a cross section of the outer part of the rack. 2. The portable machine according to claim 1, characterized in that the chain mount is made in the form of a rotary sprocket located between two plates with a finger lock between the teeth.