RU1779887C - Drill - Google Patents

Abstract

Use in industrial fishing for ice fishing for hole drilling. The inventive drill contains a cylindrical body, the working body is fixed i 1 g) for v siobium .i with a rotation drive. The reverse shaft feed mechanism contains three gear racks mounted on the inner surface of the housing and mounted on the shaft with a flexible plate. The shaft feed of the working body carries out due to the movement of two movable rails in opposite directions and the fixation of the third rail Va, acting on this plate they cause it to deform with the formation of a single-coil worm which It is carried in the grooves between the teeth of racks 2 yl

Description

The invention relates to commercial fishing and can be used in underwater fishing for hole drilling.

Known drill containing a cylindrical body, a working body mounted on a shaft and communicated with a rotation drive, a reversing mechanism for feeding the shaft of the working body

A disadvantage of this drill is that an additional gearbox with a reverse is required to feed the working member. A reverse gear complicates the design of the drill and increases its mass.

The aim of the invention is to simplify the design.

In FIG. 1 drill, longitudinal section; in Fig.2 - the same cross-section

A drill containing a cylindrical housing 1. a working body 2, mounted on a shaft 3 and communicated with a rotary drive 4, a reversing mechanism for feeding the shaft 3 of the working body 2. The feeding mechanism of the shaft 3 contains three toothed racks 5, 6 and 7,

located on the inner surface of the housing 1, the length of which corresponds to the feed rate of the shaft 3, a flexible plate 8 mounted on the shaft 3 with a radio-groove 9, the peripheral sections of which are smoothed in the grooves between the teeth of the rails 5 6 and 7 and the control handle 10, and one at the same time. 1 rail 5 is fixed motionless and two others 6 and 7 are movable in a vertical plane, and on both sides of these rails there are guide plates 11 movably mounted on the housing 1 with vertical slots 12 The rails 6 and 7 are connected to the handles systematic way 10 by axles 13 rkpo decomposition in said breakthrough h 12 i and the latter corresponds clays LII

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with three positions nests

Drill works as follows

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peripheral sections of the plate 8 match.

When the spindle 3 rotates, the working member 2 does not move. The control handle 10 in this case is mounted in the middle part of the plate 14.

To drill the hole, one of the control knobs 10 is lowered and the other raised, moving the rails 6 and 7 in the guide plates, respectively. that together with the fixed rail 5 they form threads. At the same time, the plate 8, which enters the slot between the teeth of the rails 5, b and 7, is bent, the edge of its edge is cut at the slot 9 so that the plate 8 takes the form of a single-turn worm.

When the drive 4 is rotated by the spindle 3, the plate 8 lowers the working body 2 downward, thereby feeding. To raise the working element 2, the position of the rails 6 and 7 is reversed by moving the control handle 10. The thread formed by the teeth of rails b and 7 is reversed and the plate 8 is bent, respectively. As a result, when the drive 4 is rotated in the same direction, the working body 2 is lifted. Thus, the lowering and raising of the working body 2 is carried out by moving the rails 6 and 7, which act on the plate 8, causing its deformation beyond

Claims (1)

due to the presence of a slot in it 9. The deformation of the plate 9 corresponds to the tooth pitch of the racks 5. 6 and 7 and the length of the slot 12. The use of a flexible plate with a slot as a reverse mechanism provides simplification of the design. SUMMARY OF THE INVENTION A drill comprising a cylindrical housing, a working body mounted on a shaft and communicated with a rotary drive, a reversible working shaft feed mechanism, characterized in that, in order to simplify the construction, the shaft feeding mechanism comprises three gear racks located on the inner surface of the housing , the length of which corresponds to the value of the shaft feed, a flexible plate mounted on the shaft with a radial slot, the peripheral sections of which are placed in the grooves between the teeth of the rails, and the control handle, one rail is fixed motionless, and the other two can be moved in a vertical plane, and on both sides of these rails there are guide plates with vertical slots fixedly mounted on the housing, the rails are connected to the control handles by means of axes located in said slots, and the length of the latter corresponds to the pitch of the teeth of the rails. 12 # Figure 1 figure 2