SU720148A2 - Feeding mechanism of drilling rig - Google Patents

Description

The invention relates to the mining industry, in particular to the feeding mechanisms of drilling machines for underground work.

According to the main author. St. No. 696154 is known a feeding machine of a drilling machine, comprising a spiral-screwed spindle fastened to a drive, placed on a typing plate, cooperating with an elastic element, a nut including a body and a working part, which is made in the form of a sleeve with spiral slots under body rolling. The sleeve is connected to the nut body by means of a push-button connection and is installed with the possibility of interaction with the other element.

However, in such a mechanism on theta rolling, there are significant loads from the vibration of the base plate, which reduces the durability of the mechanism.

The aim of the invention is to increase the durability of the feeder by reducing the loads acting on the rolling bodies.

This is achieved by the fact that the proposed mechanism of SShbjo by additional bodies, and the Kopiiyc nuts are made with rings ;; grooves ;; and longitudinal grooves, rachel. Oiokne: et & that rolling placed on

 iiapv-zke screws, sleeve sockets to ko.) b; Euv case grooves, and additional - on the spiral cutting of the screw, sleeve sockets and the longitudinal grooves of the housing nut.

ria FIG. 1 shows the feeder mechanism of the BB machine, side view; in fig. 2 - the same, top view; in fig. 3 - section А-А on ф1; г. 2: in FIG. 4 - section BB on; and, 1d. 3; in fig. 5 shows section B - B in FIG. 3. The feed mechanism of the drilling machine contains guides 1 (Figs. 1, 2) on which plate 2 is placed, lunette 3 for maintaining the drill rod, feed drive, including motor 4, for example, pneumatic, spindle screw 5 with helical

cutting (figs. 2, 3), the nut body 6, and the working part of the nut, made in the form of a sleeve 7 with sockets arranged along a spiral line, a rolling body; main (shchara) 8 and additional 9, an elastic element 10, placed between the plate 2 and the nut housing 6. Screw 5 is installed on bearings 11 in the front support 12 and the rear support 13. For receiving axial loads in support 12 there are two resistant subtypes 14 The supports 12 and 13 are fastened to the guides 1. In the case of the nut 6, there are annular grooves 15 and longitudinal grooves 6. Cuffs 17 and a sludge pitcher 18 are used to protect the bearing assembly of the blade. A perforator is installed on the plate 2.

Through the hole 19 in the plate 2, compressed air is supplied to blow out the screw from the sludge and simultaneously lubricate the rubbing surfaces.

The elastic element 10 is located on the sleeve 20.

The mechanism works as follows.

Air motor 4, mounted on the support 13, rotates the screw 5, having a spiral thread. The screw 5 rotates in the bearings 11 and through the main rolling bodies (balls) 8, located in the housings of the bushings 7 and in contact with the spiral threading of the screw 5 and with the walls of the annular grooves 15 of the nut body 6 transfers the axial load to the nut body, which in turn through the sleeve 20 and the elastic element 10 on the plate 2. Additional rolling bodies (balls) 9, also located in the sockets of the sleeve 7 and in contact with the spiral cutting of the screw 5 and the walls of the longitudinal grooves 16 of the nut body, transfer the radial load to the nut body and through it to the plate 2 .

The body of the nut is placed in the slot 21 of the plate 2 with a gap, thereby preventing the transfer of forces from the plate to the body of the nut and through it to the screw in the radial direction when the guides 1 are worn.

During drilling, the perforator strikes the thong, high-frequency oscillations of the plate 2 occur. In this case, the nut body 6, interacting with the plate 2 through the sleeve 20 and the elastic element 10, will also oscillate. As a result, the load on the rolling bodies from the maximum value to the minimum is possible. G1) and L1max. Loads the balls I press-C) to the walls of the annular grooves 15 and 16 longitudinal, which leads to their braking. At minimum loads, the rolling elements are moving away from the above-mentioned surfaces with simultaneous rotation. Due to this, there is no one-sided wear of the balls, which leads to an increase in the size of the Forearm.

At the same time, thanks to the gaps between these surfaces and the result of supplying the space, the nut body b and cutting the compressed air from 1, a rotary hammer, npoi-ichod sludge blowing; :: ou; oiipeMCuiiOH; x: (jc: efh

Described); i, aK) Hj, HH) and makes it possible to reduce the load of the load, Terie Roller, since) h :. A wall of the buttons with walls gaikm, transmit the axis - N) 1 stvuyuschie with sten.k to them memory, -) adial) L1e maruzk:;, igu.;:;; Forces unloaded that iioBbin ;;;; eternity polishing mechanism

Feed mechanism; b- ria-ik-. on auth. ev № 69615 h. about vvrw; l / o::;.:, "/;,; so that, with nejibio liOBbiJiseiiHjj D ((pech :: s; n the feeder, google able; o1; ui loads acting on tons; y | a cannin. ci: provided with additional ty; am cane: i. and gaykk performed the collar; grooves and longitudinal naziich,: oichs ;, the main rolling bodies of the mi, sh),; a and en; -h; oval cutting of the screw, ij-v, ix, and xx grooves nut NSSS; n: t; G1pyee - on the insideRoot :: HI-- ;: P1, .HCv dah sleeves and longitudinal, aazah kooauaea gakki.

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Claims (1)

Claim The giving mechanism: drilling "machine on a bus. St. No. 696'54, characterized in that, in order to increase the durability of the feeding mechanism by increasing the loads acting on the heat of the incandescence, it is equipped with additional rolling basins, and the nut housing is made with annular grooves and longitudinal grooves, and the main rolling bodies are placed on a spiral thread screw, sockets vzu.zhe and annular grooves of the body of the nut go; behind. tears dah bushings and longitudinal grooves of the nut housing. 77 14 74