CN102601419A - Electric impact drill with 360-degree rotary working head - Google Patents

Abstract

The invention relates to an electric tool. The impact electric drill with a 360-degree rotating working head is mainly composed of a stable handle, a working head handle and a transmission system. The transmission system is mainly composed of a motor rotor spindle, a driving conical spur gear, a driven conical spur gear, Transmission shaft I, shock absorbing spring I, driving angle spur gear, driven angle spur gear, driving conical helical gear, driven bevel helical gear, transmission shaft II, six rules and cam, needle roller, shock absorbing spring II and output shaft composition. The motor rotor spindle and the transmission shaft I are perpendicular to each other, the driving conical spur gear is mounted on one end of the motor rotor spindle, and the driven conical spur gear is mounted on the lower end of the transmission shaft I; The driving conical helical gear and the driving angle spur gear are installed on the upper end of the transmission shaft I in sequence; The shaft II and the transmission shaft I are parallel to each other; the driven conical helical gear is installed on the output shaft, and the output shaft and the transmission shaft II are perpendicular to each other; the needle roller is located at one end of the output shaft and The six are in sliding contact with the cam.

Description

Impact drill with 360 degree rotating working head

technical field

The invention relates to an electric tool, in particular to an impact electric drill with a 360-degree rotating working head, which has a reasonable structure and can adapt to drilling holes in narrow spaces and special environments.

Background technique

The motor, working head and drill bit of ordinary impact drills are on the same straight line, that is, in the length direction of the impact drill. When working, there must be at least a space that can accommodate the length of the impact drill itself, otherwise it cannot be drilled. In the decoration of houses in the construction industry, it is necessary to drill holes in some special positions, such as drilling an oblique hole at the top corner of a wall, which cannot be achieved by ordinary electric drills. Will destroy the wall surface that has been decorated or damage other objects in the room, the impact electric drill with the 360-degree rotating working head can easily solve this problem.

Contents of the invention

In order to solve the above problems, the present invention provides an impact electric drill with a 360-degree rotating working head, which uses two pairs of bevel gears and a pair of spur gears for transmission, so that the working head can rotate, and the drilling angle can be precisely offset, and the working head rotates It can be folded in the middle to make it easy to carry; at the same time, it adopts cam impact instead of the impact teeth used in ordinary impact electric drills, so the movement range remains unchanged and the structure is more reasonable.

The scheme adopted in the present invention is:

The impact electric drill with a 360-degree rotating working head is mainly composed of a rear cover, a stable handle, a switch, a working head handle, a working head cover, a transmission system cover, a front cover and a transmission system. Conical spur gear, driven conical spur gear, transmission shaft I, shock absorbing spring I, driving angle spur gear, driven angle spur gear, driving conical helical gear, driven bevel helical gear, transmission shaft II, six rules and cam, Composed of needle roller, shock absorbing spring II and output shaft, the motor rotor spindle and the transmission shaft I are perpendicular to each other, the driving conical spur gear is installed on one end of the motor rotor spindle, and the driven conical spur gear Installed on the lower end of the transmission shaft I, the active conical spur gear meshes with the driven conical spur gear; the active conical helical gear and the active angular spur gear are installed on the upper end of the transmission shaft I in sequence; The driven angle spur gear and the six rules and the cam are installed at both ends of the transmission shaft II, the transmission shaft II and the transmission shaft I are parallel to each other, the driving angle spur gear and the driven Angle of spur gear meshing; the driven conical helical gear is installed on the output shaft, the output shaft and the transmission shaft II are perpendicular to each other, the driven conical helical gear meshes with the driving conical helical gear; the The needle roller is located at one end of the output shaft and is in sliding contact with the six wheels and the cam.

The beneficial effects of the present invention are:

The percussion electric drill with a 360-degree rotating working head has a reasonable structure, and the working head can be rotated to drill holes within a 360-degree range, that is, it can drill holes in all directions, and makes the drilling angle more accurate; the impact body adopts a cam to be more impact-resistant, The working head can be folded for easy portability.

Description of drawings

Below in conjunction with figure of the present invention further illustrate:

1 is a schematic diagram of the appearance of the impact electric drill with a 360-degree rotating working head, which is mainly composed of a rear cover, a stable handle, a switch, a working head handle, a working head cover, a transmission system cover, a front cover and a transmission system.

Fig. 2 is an enlarged schematic diagram of the transmission system.

In the figure, 1. Rear cover, 2. Steady handle, 3. Switch, 4. Working head handle, 5. Working head cover, 6. Transmission system cover, 7. Front cover, 8. Motor rotor spindle, 9. Fan , 10. driving conical spur gear, 11. driven conical spur gear, 12. transmission shaft I, 13. damping spring I, 14. driving angle spur gear, 15. driven angle spur gear, 16. driving conical helical gear , 17. driven conical helical gear, 18. drive shaft II, 19. six and cam, 20. needle roller, 21. damping spring II, 22. output shaft.

Detailed ways

Figure 1 is a schematic diagram of the appearance of the impact electric drill with a 360-degree rotating working head. It has two handles, a stable handle (2) and a working head handle (4), which make the grip more convenient and stable. When it is necessary to change an angle for impact action At this time, grasp the working head handle (4) and turn it to the required angle to make the driven angle spur gear (15) rotate. Through the transmission relationship with it, the working head can be rotated accordingly to achieve the adjustment angle the goal of.

Figure 2 is an enlarged schematic diagram of the transmission system, mainly composed of motor rotor mandrel (8), driving conical spur gear (10), driven conical spur gear (11), transmission shaft 1 (12), damping spring 1 ( 13), driving angle spur gear (14), driven angle spur gear (15), driving conical helical gear (16), driven conical helical gear (17), transmission shaft II (18), six rules and cam (19 ), needle roller (20), damping spring II (21) and output shaft (22). The motor rotor mandrel (8) and the transmission shaft I (12) are perpendicular to each other, the driving conical spur gear (10) is mounted on one end of the motor rotor mandrel, and the driven conical spur gear (11) Installed on the lower end of the transmission shaft I, the driving conical spur gear (10) meshes with the driven conical spur gear (11); the driving conical helical gear (16) and the driving angle spur gear (14) ) are installed on the upper end of the transmission shaft I in turn; the driven angle spur gear (15) and the six cams (19) are installed on the two ends of the transmission shaft II (18), and the transmission shaft II and the transmission shaft I are parallel to each other, and the driving angle spur gear (14) meshes with the driven angle spur gear (15); the driven conical helical gear (17) is installed on the output shaft (22 ), the output shaft and the transmission shaft II are perpendicular to each other, the driven conical helical gear (17) meshes with the driving conical helical gear (16); the needle roller (20) is located at one end of the output shaft And with said six rules and cam (19) sliding contact.

When the switch (3) is turned on, the driving spur gear (10) drives the driven spur gear (11) to rotate, so that the driving spur gear (14) and the driving helical gear ( 16) Turn. Thus, the driving conical helical gear (16) drives the driven conical helical gear (17) and the output shaft (22) to rotate, and at the same time, the driving angular spur gear (14) drives the driven angular spur gear (14) to rotate The gear (15) and the six gears and the cam (19) rotate, and the six gears and the cam (19) drive the needle (20) to produce intermittent reciprocating motion, so that the output shaft (22) generates Impact action, the effect of described damping spring II (21) is impact recovery damping, described damping spring I (13) carries out damping to complete machine, all adopts keyway to connect between described gear and corresponding shaft.

Claims (1)

1. An impact electric drill with a 360-degree rotating working head, mainly composed of a back cover, a stable handle, a switch, a working head handle, a working head cover, a transmission system outer cover, a front cover and a transmission system, and the transmission system is mainly composed of a motor Rotor spindle (8), driving spur gear (10), driven spur gear (11), transmission shaft I (12), damping spring I (13), driving angle spur gear (14), driven angle Spur gear (15), driving bevel helical gear (16), driven bevel helical gear (17), transmission shaft II (18), six rules and cam (19), needle roller (20), shock absorbing spring II (21 ) and an output shaft (22), characterized in that: the motor rotor shaft (8) and the transmission shaft I (12) are perpendicular to each other, and the active conical spur gear (10) is installed on the motor rotor core One end of the shaft, the driven conical spur gear (11) is installed on the lower end of the transmission shaft I, and the driving conical spur gear (10) meshes with the driven conical spur gear (11); The gear (16) and the driving angle spur gear (14) are installed on the upper end of the transmission shaft I in sequence; The two ends of shaft II (18), the transmission shaft II and the transmission shaft I are parallel to each other, the driving angle spur gear (14) meshes with the driven angle spur gear (15); the driven cone The helical gear (17) is installed on the output shaft (22), the output shaft and the transmission shaft II are perpendicular to each other, and the driven conical helical gear (17) meshes with the driving conical helical gear (16); The needle roller (20) is located at one end of the output shaft and is in sliding contact with the six wheels and the cam (19).

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