CN212004122U

CN212004122U - Multifunctional electric tool gear box

Info

Publication number: CN212004122U
Application number: CN202020211787.7U
Authority: CN
Inventors: 王強; 汪麟
Original assignee: Best Select Industrial Suzhou Co ltd
Current assignee: Best Select Industrial Suzhou Co ltd
Priority date: 2020-02-26
Filing date: 2020-02-26
Publication date: 2020-11-24
Anticipated expiration: 2030-02-26

Abstract

The utility model discloses a multifunctional electric tool gear box, the gear box comprises a speed change component and a shell, the shell comprises an upper shell and a lower shell which are used for installing the speed change component and a speed regulation component which is arranged on the lower shell and is used for switching the working state of the speed change component, the speed change component comprises a first speed change component and a second speed change component, the first speed change component comprises a fixed seat which is arranged in the lower shell, a sun gear which is arranged in the middle of the fixed seat and is used as a power source, a speed change gear which is arranged on the sun gear, a first planet support which is arranged above the speed change gear and a speed change gear ring which is sleeved on the first planet support and the speed change gear, the peripheral surface of the speed change gear ring is provided with a chute, an integrated driving lever is utilized, the switching of the speed regulation component is realized by the swinging, and is easy to process and install.

Description

Multifunctional electric tool gear box

Technical Field

The utility model relates to a multi-functional electric tool gear box.

Background

Current drill-type power tools typically have several speed modes of operation, and therefore typically have a speed switching mechanism to achieve outputs at different rotational speeds. The speed switching mechanism of the existing electric tool mostly adopts a gear lever and a push switch structure, the gear lever and the push switch are connected with a speed switching ring, the push switch is connected on the surface of a gear box body in an axial sliding mode, and the speed is switched by pushing the push switch to push the speed switching ring to move axially forwards and backwards.

Disclosure of Invention

The utility model aims at providing a simple structure convenient operation's a multi-functional electric tool gear box.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a multi-functional electric tool gear box and casing, the gear box includes the speed change subassembly, the casing including the last casing that is used for installing the speed change subassembly and lower casing and install in be used for switching speed change subassembly operating condition's speed governing subassembly down on the casing, the speed change subassembly includes first speed change subassembly and second speed change subassembly, first speed change subassembly including install in the internal fixing base of inferior valve, locate the middle part of fixing base as the sun gear of power supply, locate change gear on the sun gear and be located first planet support and the cover of change gear top are located first planet support with last variable speed ring gear of change gear, the spout has been seted up on the global of variable speed ring gear, the casing includes that global UNICOM has been seted up on the global down the casing body of the inside and outside regulation hole of casing, the speed change subassembly is located including symmetrically the global of casing body is gone up and is located the erection column of regulation hole one side The main body is arc-shaped, the two end parts of the main body are provided with annular bent shifting rods, the annular bent sleeves at the two end parts of the shifting rod are arranged on the mounting columns, the two end parts of the shifting rod are provided with oppositely extending shifting columns used for driving the speed change assembly to move and further regulate the speed, and the shifting columns are inserted into the regulating holes and extend into the sliding grooves.

In another preferred mode, the lower shell further comprises a mounting frame arranged around the mounting column, a cover plate is arranged in the mounting frame, a semi-cylindrical protrusion for auxiliary positioning is arranged on the cover plate, and a semi-cylindrical groove matched with the protrusion for auxiliary positioning is formed in the mounting frame.

In another preferred mode, a plurality of mounting threaded holes are formed in the inner side wall of the mounting frame, and the cover plate is fixedly connected with the fixing screws which penetrate through the cover plate and are in threaded connection with the mounting threaded holes.

In another preferred mode, two mounting screw holes are formed in the mounting frame and are respectively arranged on opposite angles of the inner side wall of the mounting frame.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages: the utility model discloses utilize the driving lever of integral type, the switching of variable speed subassembly is realized in the swing of casing down, not only simple structure, and easily processing installation.

Drawings

The attached figures 1-2 are respectively the front view and the right view of the utility model

FIG. 3 is a schematic structural view of a governor assembly;

fig. 4 is a cross-sectional view of the present invention.

Detailed Description

The invention will be further described with reference to examples of embodiments shown in the drawings.

As shown in fig. 1-4, the gearbox includes a housing, a shift assembly 16 mounted within the housing. The housing comprises an upper housing 9 and a lower housing 8 for mounting the speed change assembly and a speed regulating assembly 15 mounted on the lower housing 8 for switching the operation of the speed change assembly.

The speed change assembly 16 comprises a first speed change assembly 17 and a second speed change assembly 18, the first speed change assembly 17 comprises a fixed seat 19 installed in the lower shell 8, a sun gear 20 arranged in the middle of the fixed seat 19 as a power source, a speed change gear 21 arranged on the sun gear 20, a first planet carrier 22 positioned above the speed change gear 21, and a speed change gear ring 0 sleeved on the first planet carrier 22 and the speed change gear 21, and a sliding groove 14 is formed in the peripheral surface of the speed change gear ring 0.

Casing 8 includes that global the shell body 1 of seting up UNICOM symmetrically in the casing 8 inside and outside regulation hole 2 down, locate symmetrically on the shell body 1 global and be located erection column 3, the main part of regulation hole 2 one side are the arc and both ends have the driving lever 4 of annular bending 7 and locate erection column 3 mounting frame 5 all around, be equipped with apron 6 in the mounting frame 5, the annular bending 7 cover at the both ends of driving lever 4 is located on the erection column 3, just the both ends of driving lever 4 have the subtend extension be used for driving the shifting block action and then the post 10 of dialling of speed governing, it inserts and locates to dial in the regulation hole 2 post 10. The cover plate 6 is provided with a semi-cylindrical protrusion 11 for auxiliary positioning, and the mounting frame 5 is provided with a semi-cylindrical groove 12 which is matched with the protrusion 11 for auxiliary positioning. Be equipped with a plurality of installation screw hole posts 13 on the inside wall of installation frame 5, apron 6 is through wearing to locate on apron 6 and with installation screw hole post 13 looks threaded connection's set screw looks fixed connection. The two mounting screw hole columns 13 are respectively arranged on the opposite angles of the inner side wall of the mounting frame 5.

As shown in fig. 3, the shift rod 10 is inserted into a sliding groove 14 on the circumferential surface of the shift ring gear 0 of the governor assembly, and when the shift rod 4 swings, the shift ring gear 0 adjusts its position in the lower housing 8, thereby realizing output of different rotation speeds.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides a multi-functional electric tool gear box, the gear box includes speed change subassembly and casing, the casing including be used for installing speed change subassembly last casing and lower casing and install in be used for switching speed change subassembly operating condition's speed governing subassembly on the casing down, its characterized in that: the speed-changing assembly comprises a first speed-changing assembly and a second speed-changing assembly, the first speed-changing assembly comprises a fixed seat arranged in the lower shell, a sun gear arranged in the middle of the fixed seat and used as a power source, a speed-changing gear arranged on the sun gear, a first planet support arranged above the speed-changing gear, and a speed-changing gear ring sleeved on the first planet support and the speed-changing gear, the peripheral surface of the speed-changing gear ring is provided with a chute, the lower shell comprises a shell body symmetrically provided with adjusting holes communicated with the inside and the outside of the lower shell, the speed-adjusting assembly comprises mounting columns symmetrically arranged on the peripheral surface of the shell body and positioned on one side of the adjusting holes, a shifting rod with arc-shaped main bodies and annular bending parts at two end parts, the annular bending parts at two end parts of the shifting rod are sleeved on the mounting columns, and the two end parts of the shifting rod are provided with shifting columns which extend oppositely and are, the shifting column is inserted into the adjusting hole and extends into the sliding groove.

2. A multi-function power tool gearbox according to claim 1 wherein: the lower shell further comprises a mounting frame arranged on the periphery of the mounting column, a cover plate is arranged in the mounting frame, a semi-cylindrical protrusion for auxiliary positioning is arranged on the cover plate, and a semi-cylindrical groove matched with the protrusion for auxiliary positioning is formed in the mounting frame.

3. A multi-function power tool gearbox according to claim 2 wherein: the inner side wall of the mounting frame is provided with a plurality of mounting threaded hole columns, and the cover plate is fixedly connected with the fixing screws which are threaded on the cover plate and are in threaded connection with the mounting threaded hole columns.

4. A multi-function power tool gearbox according to claim 3 wherein: the mounting screw hole columns are two and are respectively arranged on opposite angles of the inner side wall of the mounting frame.