CN217168317U

CN217168317U - Double-head screwdriver

Info

Publication number: CN217168317U
Application number: CN202120845142.3U
Authority: CN
Inventors: 张睿; 钟浩
Original assignee: Beijing Xinke Ruitong Electromechanical Technology Co ltd
Current assignee: Beijing Xinke Ruitong Electromechanical Technology Co ltd
Priority date: 2021-04-23
Filing date: 2021-04-23
Publication date: 2022-08-12
Anticipated expiration: 2031-04-23

Abstract

The utility model relates to a double-head screwdriver, which comprises a motor, a first driving mechanism, a second driving mechanism, a third driving mechanism, a bevel gear set and a rotating shaft; the output end of the motor is connected with the input end of the first driving mechanism to provide power for the first driving mechanism; the output end of the first driving mechanism is connected with the input end of the second driving mechanism, and power is transmitted to the second driving mechanism; the output end of the second driving mechanism is connected with the input end of the third driving mechanism, and power is transmitted to the third driving mechanism; the output end of the third driving mechanism is connected with the rotating shaft through the conical gear set, and the end part of the rotating shaft is provided with a screwdriver bit mounting port. The utility model discloses can realize two-way dismantlement simultaneously, improve work efficiency greatly, "hiring the arm", "moment of torsion undersize" scheduling problem that appear in the dismantlement process has been avoided simultaneously.

Description

Double-head screwdriver

Technical Field

The utility model relates to an assembly and disassembly tools especially relates to a double-end screwdriver that is used for bus production N/P series to connect.

Background

In the CAN bus manufacturing process, a large number of plugs such as P series and N series need to be disassembled and assembled, and the problems that the efficiency is too low, the torque is unstable, and the potential safety hazard of easy 'hiring' exists in the existing single-head electric screwdriver in the disassembling and assembling process are solved.

Disclosure of Invention

In view of the above problem, the utility model aims at providing a double-end screwdriver, it can realize two-way dismantlement simultaneously, has improved work efficiency greatly, has avoided simultaneously "hiring the hand", "moment of torsion undersize" scheduling problem appearing dismantling the in-process.

In order to achieve the purpose, the utility model adopts the following technical proposal: a double-head screwdriver comprises a motor, a first driving mechanism, a second driving mechanism, a third driving mechanism, a bevel gear set and a rotating shaft; the output end of the motor is connected with the input end of the first driving mechanism to provide power for the first driving mechanism; the output end of the first driving mechanism is connected with the input end of the second driving mechanism, and power is transmitted to the second driving mechanism; the output end of the second driving mechanism is connected with the input end of the third driving mechanism, and power is transmitted to the third driving mechanism; the output end of the third driving mechanism is connected with the rotating shaft through the conical gear set, and the end part of the rotating shaft is provided with a screwdriver bit mounting port.

Further, the first drive mechanism includes a first carrier, a first planetary gear set, and a first external gear; the first planetary gear set consists of a first central gear and three first planet gears; the output end of the motor penetrates through the first planet carrier to be coaxially connected with the first central wheel so as to drive the first central wheel to rotate; the three first planet gears are arranged on the first planet carrier and are respectively in meshing transmission connection with the first central wheel; the first external gear is arranged on the outer side of the first planetary gear set and is in transmission connection with the three first planetary gears.

Further, the inner side of the first external gear is provided with first inner teeth, and the outer side of the first external gear is provided with first outer teeth; the first internal teeth are in meshing transmission connection with the three first planetary gears, and the first external teeth are in meshing transmission connection with the second driving mechanism.

Further, the number of the second driving mechanisms is two; the two second driving mechanisms are respectively arranged on two sides of the first driving mechanism, and the two second driving mechanisms and the first driving mechanism are arranged on the same central line.

Further, each of the second drive mechanisms includes a support shaft, a second planetary gear set, and a second external gear; the second planetary gear set consists of a second central wheel and three second planet wheels; the second external meshing gear is in meshing transmission connection with the first driving mechanism, and the inner side of the second external meshing gear is in meshing transmission connection with the three second planet wheels; one end of the supporting shaft is arranged on the shell through a first bearing, and the other end of the supporting shaft is provided with a second planet carrier; the second central wheel is arranged on the second planet carrier, the second central wheel is in meshing transmission connection with the three second planet wheels, and the second planet wheels drive the second central wheel and the second planet carrier to rotate; the top of the second planet carrier is connected with the third driving mechanism.

Further, a second internal tooth is arranged on the inner side of the second external gear, and a second external tooth is arranged on the outer side of the second external gear; the second internal teeth are in meshed transmission connection with the three second planet wheels.

Further, the number of the third driving mechanisms is two; the two third driving mechanisms are respectively arranged at the upper part of one second driving mechanism.

Further, each of the third drive mechanisms includes a third carrier, a third planetary gear set, and a ring gear; the third planetary gear set consists of a third central gear and three third planetary gears; the bottom of the third central wheel is connected with the second driving mechanism, the three third planet wheels are in meshing transmission connection with the third central wheel, and the outer sides of the three third planet wheels are in meshing transmission connection with the gear ring; the tops of the three third planet gears are arranged on the third planet carrier, the three third planet gears drive the third planet carrier to rotate, and the top of the third planet carrier is connected with the input end of the conical gear set to drive the conical gear set to rotate.

Further, the bevel gear set comprises two bevel gears; the two conical gears are in meshing transmission connection, the conical gear positioned at the horizontal position serves as an input end and is connected with the third driving mechanism, and the third driving mechanism drives the conical gear at the horizontal position to rotate; the bevel gear located at the vertical position serves as an output end and is connected with the rotating shaft to drive the rotating shaft to rotate.

Furthermore, the inner end part of the rotating shaft is connected to the output end of the conical gear set through a bearing, and the outer end part of the rotating shaft is provided with a screwdriver bit mounting port; a spring is arranged in the outer end part of the rotating shaft.

The utility model discloses owing to take above technical scheme, it has following advantage:

the utility model discloses a double-end screwdriver can realize two-way dismantlement simultaneously, has improved work efficiency greatly, has avoided simultaneously dismantling "hiring the hand", "moment of torsion undersize" scheduling problem that the in-process appears.

Drawings

Fig. 1 is a schematic view of the overall structure of the double-head screwdriver of the present invention;

FIG. 2 is a cross-sectional view E-E of FIG. 1;

FIG. 3 is a cross-sectional view C-C of FIG. 1;

fig. 4 is a sectional view taken along line H-H of fig. 1.

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be derived from the description of the embodiments of the present invention by a person skilled in the art, are within the scope of the present invention.

In the description of the present invention, it should be understood that the terms "upper", "lower", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

As shown in fig. 1-4, the utility model provides a double-end screwdriver can realize dismouting when two directions, and it includes motor 1, first actuating mechanism, second actuating mechanism, third actuating mechanism, conical gear group 2 and pivot 3.

The output end of the motor 1 is connected with the input end of the first driving mechanism and used for providing power for the first driving mechanism;

the output end of the first driving mechanism is connected with the input end of the second driving mechanism, and the power is transmitted to the second driving mechanism to drive the second driving mechanism to act;

the output end of the second driving mechanism is connected with the input end of the third driving mechanism, and the power is transmitted to the third driving mechanism to drive the third driving mechanism to act;

the output end of the third driving mechanism is connected with the rotating shaft 3 through the bevel gear set 2, and the end part of the rotating shaft 3 is provided with a screwdriver bit mounting port 4.

In a preferred embodiment, as shown in fig. 1, 2, the first drive mechanism comprises a first planet carrier, a first planetary gear set 5 and a first external gear 6; the first planetary gear set 5 is composed of one first sun gear 51 and three first planet gears 52. The output end of the motor 1 passes through the first planet carrier and is coaxially connected with the first central wheel 51 to drive the first central wheel 51 to rotate; the three first planetary gears 52 are arranged on the first planet carrier, are respectively in meshing transmission connection with the first central gear 51, and reduce the input rotating speed of the motor 1 through the first planetary gear set 5, output low rotating speed and simultaneously improve torque so as to achieve better transmission effect. The first external gear 6 is arranged outside the first planetary gear set 5, and the first external gear 6 is in driving connection with three first planet gears 52.

In the above embodiment, the first external gear 6 is provided with first internal teeth on the inside thereof and first external teeth on the outside thereof; the first internal teeth are in meshing transmission with the three first planetary gears 52, so that the first planetary gear set 5 drives the first external gear 6 to rotate. The first external teeth are in meshing transmission connection with the second driving mechanism, and the first external gear 6 drives the second driving mechanism to act.

In the above embodiment, the double-head screwdriver of the present invention further comprises a casing; all the parts are arranged in the shell. The motor 1 is fixedly arranged on the inner wall surface of the shell.

In a preferred embodiment, the second drive mechanism is provided in two; the two second driving mechanisms are respectively arranged at two sides of the first driving mechanism, and the two second driving mechanisms and the first driving mechanism are arranged on the same central line. The structure of each second driving mechanism and the connection mode of the second driving mechanism and the first driving mechanism are the same, and each second driving mechanism comprises a supporting shaft 7, a second planetary gear set 8 and a second external meshing gear 9; the second planetary gear set 8 is composed of a second sun gear 81 and three second planetary gears 82, as shown in fig. 2. The second external meshing gear 9 is in meshing transmission connection with the first external meshing gear 6, and the inner side of the second external meshing gear 9 is in meshing transmission connection with the three second planet gears 82. One end of the supporting shaft 7 is arranged on the shell through a first bearing 10, and the other end of the supporting shaft 7 is provided with a second planet carrier; the second central wheel 81 is arranged on the second planet carrier, the second central wheel 81 is in meshing transmission connection with the three second planet wheels 82, the second planet wheels 82 drive the second central wheel 81 and the second planet carrier to rotate, and then the first driving mechanism drives the second driving mechanism to rotate. The top of the second planet carrier is connected with a third driving mechanism.

In the above embodiment, the second external gear 9 is provided with the second internal teeth on the inner side and with the second external teeth on the outer side; the second internal teeth are in meshing transmission connection with the three second planet gears 82, and the second external meshing gear 9 drives the second planetary gear set 8 to rotate.

In a preferred embodiment, the third drive mechanism is provided in two. The two third driving mechanisms are respectively arranged at the upper part of one second driving mechanism. As shown in fig. 1 to 3, each of the third drive mechanisms, each of which includes a third carrier 11, a third planetary gear set 12 and a ring gear, has the same structure and the same connection manner with the second drive mechanism; the third planetary gear set 12 is composed of a third sun gear and three third planetary gears. The bottom of the third central wheel is connected with the second planet carrier, and the second planet carrier drives the third central wheel to rotate; the three third planetary gears are in meshing transmission connection with the third central gear, and the outer sides of the three third planetary gears are in meshing transmission connection with the gear ring. The tops of the three third planetary gears are arranged on the third planetary carrier 11, and the third planetary carrier 11 is driven by the three third planetary gears to rotate. The top of the third planet carrier 11 is connected with the input end of the bevel gear set 2, so as to drive the bevel gear set 2 to rotate.

In a preferred embodiment, the bevel gear set 2 comprises two

bevel gears

21, 22; the two

conical gears

21 and 22 are in meshing transmission connection, so that the transmission direction is changed, and the output end of the conical gear set 2 is in vertical 90-degree transmission. As shown in fig. 2, the bevel gear 21 at the horizontal position is used as an input end and is fixedly connected with the top of the third planet carrier, so that the third planet carrier drives the bevel gear at the horizontal position to rotate; the bevel gear 22 located at the vertical position serves as an output end and is connected with the rotating shaft 3, so as to drive the rotating shaft 3 to rotate.

In a preferred embodiment, as shown in fig. 4, the inner end of the rotating shaft 3 is connected to the output end of the bevel gear set 2 (i.e., the bevel gear 22 in the vertical position) via a bearing 31, and the outer end of the rotating shaft 3 is provided as the screwdriver bit mounting port 4. A spring 32 is arranged in the outer end part of the rotating shaft 3, a screw is ejected outwards in the dismounting process, and a reserved space is provided by the spring 32.

To sum up, the utility model discloses when using, adopted five planetary gear sets to carry out the transmission, can bear radial load, also can bear the axial load of arbitrary direction simultaneously. Has higher radial load capacity, and is particularly suitable for working under heavy load or vibration load.

Above-mentioned each embodiment only is used for explaining the utility model discloses, the structure, size, the setting position and the shape of each part all can change to some extent on the basis of the technical scheme of the utility model discloses on the basis of technical scheme, all according to the utility model discloses the principle is to the improvement and the equivalence transform that individual part goes on, all should not exclude the utility model discloses a protection scope is outside.

Claims

1. A double-head screwdriver is characterized by comprising a motor, a first driving mechanism, a second driving mechanism, a third driving mechanism, a conical gear set and a rotating shaft;

the output end of the motor is connected with the input end of the first driving mechanism to provide power for the first driving mechanism;

the output end of the first driving mechanism is connected with the input end of the second driving mechanism, and power is transmitted to the second driving mechanism;

the output end of the second driving mechanism is connected with the input end of the third driving mechanism, and power is transmitted to the third driving mechanism;

the output end of the third driving mechanism is connected with the rotating shaft through the conical gear set, and the end part of the rotating shaft is provided with a screwdriver bit mounting port.

2. The double-ended screwdriver of claim 1, wherein said first drive mechanism comprises a first planet carrier, a first planetary gear set, and a first external gear; the first planetary gear set consists of a first central gear and three first planet gears; the output end of the motor penetrates through the first planet carrier to be coaxially connected with the first central wheel so as to drive the first central wheel to rotate; the three first planet gears are arranged on the first planet carrier and are respectively in meshing transmission connection with the first central wheel; the first external gear is arranged on the outer side of the first planetary gear set and is in transmission connection with the three first planetary gears.

3. The double-headed screwdriver according to claim 2, wherein the first external gear is provided with first internal teeth on an inner side thereof and first external teeth on an outer side thereof; the first internal teeth are in meshing transmission connection with the three first planetary gears, and the first external teeth are in meshing transmission connection with the second driving mechanism.

4. The double-headed screwdriver of claim 1 wherein said second drive mechanism is provided in two; the two second driving mechanisms are respectively arranged on two sides of the first driving mechanism, and the two second driving mechanisms and the first driving mechanism are arranged on the same central line.

5. The double-headed screwdriver of claim 4 wherein each of said second drive mechanisms comprises a support shaft, a second planetary gear set and a second external meshing gear; the second planetary gear set consists of a second central wheel and three second planet wheels; the second external meshing gear is in meshing transmission connection with the first driving mechanism, and the inner side of the second external meshing gear is in meshing transmission connection with the three second planet wheels; one end of the supporting shaft is arranged on the shell through a first bearing, and the other end of the supporting shaft is provided with a second planet carrier; the second central wheel is arranged on the second planet carrier, the second central wheel is in meshing transmission connection with the three second planet wheels, and the second planet wheels drive the second central wheel and the second planet carrier to rotate; the top of the second planet carrier is connected with the third driving mechanism.

6. The double-headed screwdriver as recited in claim 5, wherein said second externally meshing gear is provided with second inner teeth on an inner side thereof and second outer teeth on an outer side thereof; the second internal teeth are in meshed transmission connection with the three second planet gears.

7. The double-headed screwdriver of claim 1 wherein said third drive mechanism is provided in two; the two third driving mechanisms are respectively arranged at the upper part of one second driving mechanism.

8. The double-ended screwdriver of claim 7, wherein each said third drive mechanism comprises a third planet carrier, a third planetary gear set, and a ring gear; the third planetary gear set consists of a third central gear and three third planetary gears; the bottom of the third central wheel is connected with the second driving mechanism, the three third planet wheels are in meshing transmission connection with the third central wheel, and the outer sides of the three third planet wheels are in meshing transmission connection with the gear ring; the tops of the three third planet gears are arranged on the third planet carrier, the three third planet gears drive the third planet carrier to rotate, and the top of the third planet carrier is connected with the input end of the conical gear set to drive the conical gear set to rotate.

9. The double-headed screwdriver of claim 1 wherein the set of bevel gears comprises two bevel gears; the two conical gears are in meshing transmission connection, the conical gear positioned at the horizontal position serves as an input end and is connected with the third driving mechanism, and the third driving mechanism drives the conical gear at the horizontal position to rotate; the bevel gear located at the vertical position serves as an output end and is connected with the rotating shaft to drive the rotating shaft to rotate.

10. The double-headed screwdriver as recited in claim 1, wherein an inner end portion of said rotary shaft is connected to an output end of said bevel gear set through a bearing, and an outer end portion of said rotary shaft is provided as said screwdriver bit mounting port; a spring is arranged in the outer end part of the rotating shaft.