CN205834307U

CN205834307U - A kind of breast drill for small space

Info

Publication number: CN205834307U
Application number: CN201620807403.1U
Authority: CN
Inventors: 李建辉; 方昱斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-07-29
Filing date: 2016-07-29
Publication date: 2016-12-28
Anticipated expiration: 2026-07-29

Abstract

This utility model relates to a kind of air drill, particularly relate to a kind of bore body can stretch, bit part small volume and can carry out, at narrow and small working space, the air drill constructed.Air drill is applied universal in mechanical manufacturing field and house ornamentation field, but owing to design needs, many times parts boring sites in curing narrow space, air drill is due to self moulding reason, constructing in the place being difficult to extend into required boring, thus have impact on operation quality and efficiency.Air drill described in the utility model, by power section is moved down, reduce the volume of bit part, simultaneously by the brill body that can stretch, make it easier to that air drill is extend into deeper and narrow position, space and carry out operation, significantly increase the suitability of air drill, improve operation quality and efficiency.

Description

A kind of breast drill for small space

Technical field

This utility model relates to a kind of air drill, particularly relate to a kind of bore body can stretch, bit part small volume and energy The air drill constructed is carried out at narrow and small working space.

Background technology

Air drill is applied universal in mechanical manufacturing field and house ornamentation field, but owing to design needs, many times parts bore Position, hole narrow space, air drill is due to self moulding reason, it is difficult to construct in the place extending into required boring, thus shadow Operation quality and efficiency are rung.

Summary of the invention

The purpose of this utility model is to provide a kind of air drill that can carry out job execution at narrow and small working space.

Technical solutions of the utility model are as follows:

A kind of breast drill for small space, including power source, power source output shaft be cross section be polygon Bar；Lower house: be used for wrapping up power source；Control switch: be arranged on lower house, and connect with power source, be used for controlling to move The action of power source；Clamping screw: be arranged on the upper end of lower house, for lower house and the location of upper shell and locking；Power transmission shaft: For polygonal hollow stem, power transmission shaft lower end is enclosed within power source output shaft, and power transmission shaft upper end is conical gear structure, for Drill-bit installing seat engages, and is provided with location bearing, is fixed on upper shell in the middle part of power transmission shaft；Drill-bit installing seat: for conical gear Structure, the rear end of drill-bit installing seat is provided with base bearing, and base bearing is fixed on upper shell, and there is rectangle at drill-bit installing seat center Hole, the bottom in hole is provided with Magnet；Upper shell: for the parts such as parcel fixed drill bit mounting seat, power transmission shaft, upper shell lower end It is inserted in lower house；Drill bit: chisel edge is identical with normal drill bit, back end design is square-section, and drill bit rear end is by upper Housing is inserted in the rectangular opening of drill-bit installing seat, and by the magnet adsorption bottom rectangular opening, thus fixing.

Described air drill, being characterized between upper shell and lower house can be along axis relative movement, by being arranged on after moving Clamping screw on lower house compresses upper shell, completes the location between upper-lower casing so that boring body main body can stretch and fix；

Described air drill, is characterized in power source output shaft and for arranging between fixed drill bit the drill-bit installing seat that rotates Having power transmission shaft, power transmission shaft is fixed on upper shell by location bearing, and lower end is enclosed within power source output shaft, and circular cone is passed through in upper end Gear and drill-bit installing seat engaged transmission；

Described air drill, is characterized between power transmission shaft and power source output shaft being polygon tube-in-tube structure, on pulling When lower house makes drill body stretch, between the power transmission shaft and the power source output shaft being fixed on lower house that are fixed on upper shell Also can stretch along axis, and stable transmission power.

Described air drill, is characterized in that air drill drill tip cross section is rectangle, and drill-bit installing seat has rectangular opening, and drill bit is installed Seat rectangular opening bottom is provided with Magnet, and drill bit is inserted in the rectangular opening of mounting seat and is fixed on mounting seat by the suction of Magnet On.

Described air drill, is characterized in that air drill upper shell is provided with circular hairbrush for the part inserting drill bit, and stop is executed The chip produced during work is entered into inside air drill by drill bit and upper shell peripheral clearance.

The beneficial effects of the utility model:

This utility model bores body and can stretch, bit part small volume, and drill bit installs convenience more more flexible than common air drill, Thus adapt to the job execution environment of small space, improve efficiency of construction.

Accompanying drawing explanation

Fig. 1 is for the schematic diagram of the breast drill of small space.

Fig. 2 is for the schematic diagram of the breast drill running part of small space.

Fig. 3 is generalized section after the breast drill of small space assembles.

Fig. 4 drill-bit installing seat schematic diagram.

Fig. 5 drill headstock schematic diagram.

Fig. 6 is for the breast drill upper shell schematic diagram of small space.

Fig. 7 circular hairbrush installation site and schematic shapes.

Fig. 8 stretches schematic diagram for the breast drill of small space.

Fig. 9 is internal structure change schematic diagram when the breast drill of small space stretches.

Figure 10 uses schematic diagram in the breast drill construction of small space.

In figure: 1, lower house 2, control switch 3, clamping screw 4, upper shell 5, drill bit 6, port 7, drill bit peace Dress seat 8, base bearing 9, power source output shaft 10, power transmission shaft 11, transmission axle head conical gear 12, location bearing 13, power Source 14, circular hairbrush 15, Magnet 16, it is difficult to form parts or the parts of narrow and small construction location constructed.

Detailed description of the invention

In order to further appreciate that content of the present utility model, feature and effect, hereby enumerate following example and combine accompanying drawing, Describe in detail as follows:

As it is shown in figure 1, according to the breast drill of this utility model embodiment, from appearance can be seen that lower house 1, Control knob 2, clamping screw 3, upper shell 4, drill bit 5, port 6.

Referring to the drawings 3, being provided with power source 13 in lower house 1, power source 13 is connected with controlling switch 2, controls switch 2 and stretches Going out lower house, operator controls power source action by pressing control switch 2, and the upper end of lower house 1 is provided with clamping screw 3, the screw-internal thread fit on the external screw thread on clamping screw and lower house 1, by turning clamping screw 3 so that clamping screw with Lower house relative movement, thus compress or release upper shell 4.

Referring to the drawings 2, accompanying drawing 3, power source 13 upper end has output shaft 9, power source 13 lower end to have a port 6, port 6 with Thering is provided the hose connection of gas in construction site, gas is kept forging ahead power source 13 from port 6, under the effect controlling switch 2 Output shaft 9 is rotated.

Referring to the drawings 2, accompanying drawing 3, power source output shaft 9 is polygonal bar for cross section, and power source output shaft 9 inserts biography In moving axis 10, accordingly, power transmission shaft 10 is hollow thin walled bar, and the hollow shape of its inner chamber should be with power source output shaft shape contract Close, so that power transmission shaft 10 can be enclosed within power source output shaft 9, and can slide up and down along axis direction, power transmission shaft inner chamber Surface and power source output shaft outer surface should scribble lubricant grease.

Referring to the drawings 2, accompanying drawing 3, power transmission shaft 10 upper end is conical gear 11, is provided with location bearing in the middle part of power transmission shaft 10 12, location bearing 12 inner ring coordinates with power transmission shaft 10, and outer ring is fixed on upper shell 4, drives transmission at power source output shaft 13 When axle rotates, location bearing 12 can guarantee that power transmission shaft rotates relative to upper shell 4, without producing deflection, vibration, also limits simultaneously Determine the relative position of power transmission shaft 10 and upper shell 4.

Referring to the drawings 2, accompanying drawing 3, drill-bit installing seat 7 is conical gear structure, nibbles with the conical gear 11 of power transmission shaft upper end Closing, drill-bit installing seat axis and drive shaft axis angle are 90 degree, the boss that the rear end of drill-bit installing seat 7 is cylindrically shaped, Boss is interference fit with the inner ring of base bearing 8, and the outer ring of base bearing is arranged on upper shell 4, power transmission shaft 10 and transmission axle head Conical gear 11 when rotating, drive drill-bit installing seat 7 to rotate, base bearing 8 plays the effect of constraint drill-bit installing seat 7.

Referring to the drawings 2, accompanying drawing 3, accompanying drawing 4, there is the hole of rectangle at the center of drill-bit installing seat 7 front end face, and the bottom in hole is installed There is one block of Magnet 15；Referring to the drawings 5, the chisel edge of drill bit 5 is identical with normal drill bit, and back end design is square-section；Drill bit 5 Rear end is inserted in the rectangular opening of drill-bit installing seat 7 by upper shell, and after insertion, drill bit 5 is adsorbed by Magnet 15, makes drill bit 5 jail Solid be fixed on drill-bit installing seat 7, and drill-bit installing seat 7 rotates when, drive drill bit 5 to rotate.

Referring to the drawings 3, accompanying drawing 6, there are the groove of rectangle, the bottom surface of clamping screw 3 compressed grooves in upper shell 4 bottom, work as rotation Pine clamping screw 3, when pulling upper shell 4, locking nut 3 slides in groove, when upper shell to upper (lower) be drawn to the limit time, Clamping screw 3 touches the upper (lower) end face of groove, defines that upper shell 4 pulls stroke to upper (lower), it is ensured that upper shell 4 is not Can deviate from from lower house 1 under the effect of pulling force.

Referring to the drawings 7, upper shell 4 is provided with circular hairbrush 14 for the part inserting drill bit, when drill bit 5 rotates, Hairbrush 14 and drill bit 5 outer surface friction, stop that the chip produced in work progress is entered with upper shell peripheral clearance by drill bit Inside air drill.

In work progress, as relatively deep in run into the position needing boring, and when allowing the gap relatively narrower that drill body enters, permissible Unclamp clamping screw 3, pull upper shell 4, when brill body is adjusted to the length needed, screws clamping screw 3, extend into parts The shakiness that need to hole carries out construction operation, and Fig. 8 is the schematic diagram before and after drill body stretches.

When unclamp into bolt 3, when pulling upper shell 4, the location bearing that is fixed on upper shell 4 12 and be fixed on location Power transmission shaft 9 on bearing 12 inner ring together moves with upper shell 4, upper shell 4 outer surface at lower house 1 inner surface along centrage side To slip, the inner surface of power transmission shaft 10 slides in the axial direction at the outer surface of power output shaft 9, and accompanying drawing 9 stretches for drill body Time, the change signal of internal drive structure.

Such as Figure 10, when running into the parts 16 of the form parts being difficult to construct or narrow and small construction location, can basis Bore position, pulls air drill, changes and bores body length, extend into the position construction needing boring.

Above example is only for illustrating technology of the present utility model design and feature, it is therefore intended that allows and is familiar with technique Personage will appreciate that content of the present utility model and is carried out, and can not limit protection domain of the present utility model with this, all The equivalence change done according to this utility model spirit or modification, all should contain in protection domain of the present utility model.

Claims

1. for a breast drill for small space, including: power source, lower house, control switch, clamping screw, transmission Axle, drill-bit installing seat, upper shell and drill bit, being characterized between upper shell and lower house can be along axis relative movement, after moving Compress upper shell by the clamping screw being arranged on lower house, complete the location between upper-lower casing so that bore body main body permissible Stretch and fix.

Air drill the most according to claim 1, be characterized in power source output shaft with for fixed drill bit the drill bit that rotates Being provided with power transmission shaft between mounting seat, power transmission shaft is fixed on upper shell by location bearing, and lower end is enclosed within power source output shaft On, upper end is by conical gear and drill-bit installing seat engaged transmission.

Air drill the most according to claim 1, is characterized between power transmission shaft and power source output shaft tying for polygon sleeve Structure, during by pulling upper-lower casing to make drill body stretch, the power transmission shaft being fixed on upper shell is dynamic be fixed on lower house Also can stretch along axis between the output shaft of power source, and stable transmission power.

Air drill the most according to claim 1, is characterized in that air drill drill tip cross section is rectangle, and drill-bit installing seat has square Shape hole, drill-bit installing seat rectangular opening bottom is provided with Magnet, and drill bit is inserted in the rectangular opening of mounting seat and by the suction of Magnet Power is fixed in mounting seat.

Air drill the most according to claim 1, is characterized in that air drill upper shell is provided with annulus for the part inserting drill bit Shape hairbrush, stops that the chip produced in work progress is entered into inside air drill by drill bit and upper shell peripheral clearance.