RU1811999C - Hand-driven drilling machine - Google Patents

Abstract

Usage: the ability to drill holes at two spindle speeds. A drilling machine with a two-stage planetary gearbox comprises a gearshift mechanism made in the form of a sleeve mounted on the housing with the ability to rotate the sleeve and fingers with spherical heads mounted in the screw grooves of the machine body. The spherical heads of the fingers enter the longitudinal grooves formed in the sleeve. The fingers are rigidly fixed in a glass, which in turn is fixed on the carrier of the second gear stage. The carrier of the second gear stage and the spindle are equipped with teeth. The gearshift is carried out by turning the sleeve, the fingers move in the visible grooves of the housing and move with the satellites along the axis of the machine. Drove with its teeth either in contact with the teeth of the spindle, or at the same time in contact with the teeth of the spindle and the teeth of the first gear stage. 3 ill. SB with

Description

The invention relates to a manual mechanized tool for drilling, in particular to drills.

The aim of the invention is to expand the technological capabilities of the machine by providing two spindle speeds.

Figure 1 shows a manual machine, a General view; figure 2 - node I in figure 1; in Fig. 3 - view A in Fig. 2.

The device consists of a housing 1, in which an electric motor 2 with a shaft 3 is located, a gear wheel 4 which is connected to the satellites 5 of the first carrier 6, the gear 7, on the inner surface 8, the housing 9 of the gear 7 are cut a tooth 10. The first carrier 6 having an external tooth 11, in contact with the internal teeth 12 of the second carrier 13, equipped with satellites

14, interacting with the teeth 10 of the housing 9, in which the speed switching mechanism 15 is located, including a spindle 17 movable along the axis 16, having an external tooth 19 at the end 18, a cup 20, in which a groove 21 is made. Iodine is a bearing 22 in contact with a cylindrical surface 23 drove 13, and two holes 24. In the holes 24 of the glass 20 two fingers 25 are installed, having spherical heads 26 in contact with the side surfaces 27, screw grooves 28 made in the housing 9. Outside the fingers 25 on the housing 9 there is a sleeve 29 with two spherical E longitudinal grooves 30.pod spherical heads 26 of pins 25 .. On the sleeve 29 in the recess 31, a gasket 32. The spindle is fixed to two pins 33, in contact with the side

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the surface of the annular groove 34 thereof, and the sleeve 29 is fixed by a stopper 35. A tool holder is mounted on the spindle 17.

The operation of the device is as follows.

When the electric motor 2 is turned on, the torque from the shaft 3 of the engine 2 is transmitted via the teeth 11 of the first carrier 6 to the internal tooth 12 of the second carrier 13 and then through the external tooth 19 of the spindle 17 to the tool. To switch the manual machine to another speed, it is necessary to rotate the spherical heads 26 of the fingers 25, which slide along the grooves 28, move the sleeve 20 with the second carrier 13 until the teeth 12 engage with the outer teeth 11 of the first carrier b. The electric motor 2 is turned on. The torque from the shaft 3 of the electric motor 2 is transmitted through the outer tooth 11 and the inner tooth 12 of the second carrier 13 to the outer tooth 19 of the spindle 17 and further by means of a tool holder.

The implementation of the gear shifting mechanism, including a movable cup with a groove for the bearing in contact with the second carrier, and two holes for the fingers, the spherical heads of which are in contact with the side surfaces of the screw grooves of the housing, and a ring located on the housing above the fingers with two spherical grooves and a sealing gasket to prevent contamination from entering the switching mechanism, and performing on the end face of the spindle of the outer teeth in contact with the inner teeth of the second carrier,

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mounted with the possibility of moving along the axis of the body when the ring is rotated, which ensures the engagement of the internal teeth of the first carrier with the external teeth of the first carrier, as well as cutting on the inner surface of the housing of the teeth in contact with the satellites, will increase the technological capabilities of the machine.

Claims (1)

SUMMARY OF THE INVENTION A manual drilling machine comprising a housing, a drive, a two-stage planetary gear mounted in a housing on bearings, and a spindle, characterized in that in order to expand the technological capabilities of the machine, it is equipped with a gear shifting mechanism made in the form of at least two fingers with spherical heads, and mounted on the machine body with the possibility of turning the sleeve, on the inner surface of which there are longitudinal grooves designed to interact with the spheres with female heads of the corresponding fingers, the fingers being mounted for movement along screw grooves made in the machine body and connected through a cup inserted into the machine and intended for mounting the reducer bearing to the carrier of the second gear stage, on the inner surface of which a tooth is made for engaging with teeth made on the outer surface of the spindle, or at the same time interacting with the teeth of the spindle and the teeth, drove the first gear stage.