TW202015867A - Driving structure for electric/pneumatic tool being provided with a headpiece, a traction part and a rotary knob - Google Patents

Abstract

This invention provides a driving structure for an electric/pneumatic tool. The driving structure is mainly characterized in that the front of a machine body of the electric/pneumatic tool is provided with a connection base; the connection base is provided with a headpiece, a traction part and a rotary knob; the traction part is connected with a variable-speed gear ring of a variable-speed assembly placed into the connection base; in this way, the variable-speed gear ring may be driven by the traction part to forwards and backwards translate by operating the rotary knob outside the connection base, and therefore, the electric/pneumatic tool may be selected in two different modes including low rotating speed with high torque and high rotating speed with low torque by virtue of the change of a clamping state of the translated variable-speed gear ring; and the variable-speed assembly further includes a first planet carrier mounted in an inner ring part of the variable-speed gear ring as well as a second planet carrier and a fixed gear ring mounted inside the connection base and located at the rear of the variable-speed gear ring; the first planet carrier outputs power by continuously penetrating through the connection base and the headpiece and extending out of a central shaft at the front end of the headpiece; in addition, the variable-speed gear ring is provided with a first engaging part, and one of the connection base, the fixed gear ring and the headpiece is provided with a second engaging part.

Description

Transmission structure of electric and pneumatic tools

The invention relates to an "electric and pneumatic tool transmission structure", in particular to a simpler and easier electric and pneumatic tool transmission structure for variable speed switching.

According to press, currently known electric drills, pneumatic drills and other handheld electric and pneumatic tools mainly have two design forms, one is that it can be used at high speed and low torque when starting, and the other has high torque But the speed is low; however, it is difficult to achieve the same electric and pneumatic tools with the two different modes of high speed and high torque at the same time with the existing technology. Even if it is switched, it is quite complicated, so the existing implementation operation is still Two different forms of electric and pneumatic tools will be prepared at the same time, which will increase the cost of use, and will be more cumbersome and space-consuming to carry or store.

Therefore, if an electric and pneumatic tool with two different modes of high speed and high torque can be developed at the same time, the electric and pneumatic tools are quite simple, fast and convenient in switching the transmission speed, so that users only need The preparation of an electric and pneumatic tool can meet most of the work needs, which is the problem that the inventor wants to improve.

Therefore, in view of this, the inventor thought of the idea of creation, and then designed it with many years of experience. After many discussions and trial samples, and several revisions and improvements, this is the launch of the present invention. Bright.

The electric and pneumatic tool transmission structure of the present invention is mainly provided with a connecting seat in front of the fuselage of an electric and pneumatic tool. The connecting seat is provided with a machine head, a traction member and a knob. The transmission gear ring of the transmission component placed in the connection seat is connected, and the transmission gear ring can be driven by the operation of the knob outside the connection seat to drive the transmission gear ring forward and backward. Translation, in order to make use of the change of the state of the gear ring after translation, the electric and pneumatic tools can be selected from two different modes of low speed, high torque and high speed, and low torque, and the speed change assembly It also includes a first planet carrier installed in the inner ring portion of the transmission gear ring, a second planet carrier installed inside the connecting seat and behind the transmission gear ring, and a fixed gear ring, and the The first planet carrier carries out power output by continuously passing through the connecting base and the machine head and protruding from a central shaft at the front end of the machine head, and the speed change ring is provided with a first engaging part, The connecting seat or the fixed ring or the machine head is optionally provided with a second engaging part, wherein the connecting seat is a hollow shell inside, so that the front and rear of the connecting seat can become respectively A first opening and a second opening, and a first coupling section is provided in the first opening, so that the connecting base can be assembled with the head placed inside by the first coupling section The head is a hollow tube, and has a first end in the front and a second end in the rear, the outer periphery of the head is formed with an enlarged portion at the second end, so as to be provided on the enlarged portion The second joint segment and the The first joint section of the connecting seat is assembled, and the outer circumference of the enlarged portion is also provided with a number of grooves at equal intervals, and the inner wall of the head is provided with bearings for covering the outer circumference of the central shaft. A stepped edge, the traction member has a set of rings, and a number of buckles protruding from the rear end of the set ring are matched with the passing groove in number, the set ring and the knob are set in sequence It is provided on the outer periphery of the machine head that protrudes from the connection base, so that the claw can penetrate into the connection base from the through groove, and the follower portion on the outer circumference of the collar is formed, and the The active part of the inner wall of the knob fits together, so that the traction member can be driven forward or backward by the rotation of the knob, and the transmission gear ring is provided with a first engaging part and a ring groove. When the transmission gear ring is put into the sleeve inside the connecting seat, the ring groove is buckled by the claw, so that the transmission gear ring can be smoothly connected with the traction member, using the first A snap-fitting part provides a catch or disengagement, so that the shifting gear ring can achieve switching on shifting. A plurality of first planetary gears are pivotally arranged on the first planetary carrier, the first planetary carrier is sleeved into the shifting An inner ring portion of the ring gear, so that the central shaft can extend from the connecting seat through the machine head, and meshes with the first planetary gear on the inner ring teeth portion of the transmission ring gear, and the The outer periphery of the first planet carrier is provided with ring teeth that will bite with the inner ring tooth portion of the transmission ring in the mode of high speed and low torque, and the second planet carrier is pivotally provided with a plurality of second planet gears , A sun gear meshing between each first planetary gear is combined in front, a fixed ring gear is installed and fixed in the second opening of the connecting seat, so that the fixed ring gear and the first planetary carrier are pivotally sleeved on the The second planet carrier in the connecting seat is used as a limit, and the setting of the inner ring teeth of the fixed gear ring can also be used to mesh with the second planet gears of the second planet carrier provided by the inner ring teeth; By this, the person who can constitute the transmission structure of the electric and pneumatic tools.

The electric and pneumatic tool transmission structure of the present invention, the electric and pneumatic tools are equipped with two modes of low speed, high torque and high speed, low torque at the same time, only need to simply rotate the The knob is enough, so that users only need to prepare one of the electric and pneumatic tools to meet the needs of most of the work. The cost of use is low. It will be more convenient to carry or store and do not occupy space. Simpler and faster.

Part of the invention:

(10)‧‧‧Electric and pneumatic tools

(11)‧‧‧Body

(20)‧‧‧Connector

(201)‧‧‧First opening

(202)‧‧‧Second opening

(203)‧‧‧The first combined section

(21)‧‧‧Cover

(30)‧‧‧Head

(301)‧‧‧The first end

(302)‧‧‧Second end

(303)‧‧‧Enlargement Department

(304)‧‧‧The second joint

(305)‧‧‧Through the slot

(306) ‧‧‧ edge

(31)‧‧‧bearing

(40)‧‧‧traction

(41)‧‧‧Ring

(42)‧‧‧Claw

(43)‧‧‧ Follower

(50)‧‧‧ knob

(51)‧‧‧ Active Department

(60)‧‧‧speed component

(61)‧‧‧speed gear ring

(611)‧‧‧First Card Insertion Department

(612)‧‧‧Groove

(62)‧‧‧The first planet carrier

(621)‧‧‧Central axis

(622)‧‧‧The first planetary gear

(623)‧‧‧ring tooth

(63)‧‧‧Second planet carrier

(631)‧‧‧Second planetary gear

(632)‧‧‧Sun gear

(64)‧‧‧Fixed gear ring

(70)‧‧‧Second Card Insertion Department

The first figure is a perspective view of the electric and pneumatic tools of the present invention.

The second picture: is a three-dimensional assembly diagram of the present invention.

Figure 3 is a perspective exploded view of the first preferred embodiment of the present invention.

Fourth figure: It is the running state diagram of the first preferred embodiment of the present invention under the condition of low speed and high torque.

Fifth figure: It is the running state diagram of the first preferred embodiment of the present invention after switching in a high speed and low torque state.

Figure 6: is an exploded perspective view of the second preferred embodiment of the present invention.

The seventh figure is a diagram of the running state of the second preferred embodiment of the present invention in a state of low speed and high torque.

The eighth figure is a diagram of the operating state of the second preferred embodiment of the present invention in a state of high speed and low torque after switching.

The ninth figure is a perspective exploded view of the third preferred embodiment of the present invention.

Figure 10: It is the running state diagram of the third preferred embodiment of the present invention under the condition of low speed and high torque.

The eleventh figure is a sectional view of the tenth figure of the present invention.

FIG. 12 is a diagram of the operating state of the third preferred embodiment of the present invention in a state of high speed and low torque after switching.

Figure 13: An exploded perspective view of the fourth preferred embodiment of the present invention.

Fig. 14 is a diagram of the operating state of the fourth preferred embodiment of the present invention in a state of low speed and high torque.

Figure 15: A cross-sectional view of Figure 14 of the present invention.

Figure 16 is a diagram of the operating state of the fourth preferred embodiment of the present invention after switching in a high speed and low torque state.

In order for your reviewing committee to have a better understanding and understanding of the purpose, features and effects of the present invention, please refer to the following [Schematic Brief Description] for details as follows:

Generally, according to the present invention, please see from the first to fourth figures, which is mainly provided with a connecting seat (20) in front of the fuselage (11) of an electric and pneumatic tool (10), the connecting seat (20) A machine head (30), a traction member (40) and a knob (50) are installed, and the traction member (40) and the speed change assembly (60) placed in the connecting seat (20) are used The gear ring (61) is connected, and the gear ring (61) can be driven by the traction member (40) through the operation of the knob (50) outside the connecting seat (20) Forward and backward translation, to use the change of the state of the gear ring (61) after translation, so that the electric and pneumatic tools (10) can have low speed, high torque and high speed, low torque Species Different modes are available for selection, and the transmission assembly (60) further includes a first planet carrier (62) installed in the inner ring portion of the transmission ring gear (61) and installed inside the connecting seat (20) And a second planet carrier (63) and a fixed ring gear (64) located behind the shift gear ring (61), and the first planet carrier (62) continuously pass through the connecting seat (20) A central shaft (621) extending out of the front end of the machine head (30) in parallel with the machine head (30) to output power, and a first engaging part (611) is provided on the gear ring (61) , A second engaging part (70) is optionally provided on the connecting seat (20) or the fixed ring gear (64) or the machine head (30), wherein the connecting seat (20) is a A hollow housing inside, so that the connecting seat (20) can become a first opening (201) and a second opening (202) before and after, respectively, and a first opening is provided in the first opening (201) A coupling section (203), so that the connecting base (20) can be assembled by the first coupling section (203) and the machine head (30) placed inside, and the machine head (30) is a hollow The tube has a first end (301) located at the front and a second end (302) located at the rear. The outer periphery of the head (30) is formed with an enlarged portion (303) at the second end (302) , So that the second coupling section (304) provided on the enlarged portion (303) is assembled with the first coupling section (203) of the connecting seat (20), and the periphery of the enlarged portion (303) is also The equidistant recess is provided with a number of passage grooves (305), and the inner wall of the machine head (30) is provided with a step edge for providing a bearing (31) sleeved on the outer periphery of the central shaft (621) for embedding ( 306), the traction member (40) has a set of rings (41), and a number of claws (42) protruding from the rear end of the sets of rings (41) in a number matching the passage groove (305) , The collar (41) and the knob (50) are sequentially sleeved on the outer periphery of the machine head (30) protruding from the connection seat (20), so that the clasp (42) can be removed from The through groove (305) penetrates into the connecting seat (20), is formed by the driven part (43) on the outer circumference of the collar (41), and is connected with the active part of the inner wall of the knob (50) (51) Make a fit, so that the traction member (40) can be driven forward or backward by the rotation of the knob (50) Translation, the transmission gear ring (61) is provided with a first engaging portion (611) and a ring groove (612), when the transmission gear ring (61) is put into the set inside the connecting seat (20) is The buckle (42) is used to buckle the ring groove (612), so that the transmission gear ring (61) can be smoothly connected with the traction member (40), and the first engaging portion (611) is used ) Provides snapping or disengagement, so that the shifting gear ring (61) can achieve switching on shifting speed, and a plurality of first planet gears (622) are pivotally provided on the first planet carrier (62), the first planet carrier (62) is an inner ring part which is sleeved into the transmission gear ring (61), so that the central shaft (621) can be extended from the connecting seat (20) through the machine head (30), and The first planetary gear (622) meshes with the inner ring tooth portion of the transmission ring gear (61), and the outer periphery of the first planetary carrier (62) is provided in the mode of high speed and low torque A plurality of second planet gears (631) are pivotally arranged on the second planet carrier (63) on the ring teeth (623) of the inner ring teeth part of the shift gear ring (61), and a meshing gear A sun gear (632) between a planetary gear (622), a fixed gear ring (64) is installed and fixed in the second opening (202) of the connecting seat (20), so that the fixed gear ring (64) and The first planetary carrier (62) limits the second planetary carrier (63) that is sleeved in the connecting seat (20). By using the arrangement of the inner ring teeth of the fixed ring gear (64), The second planet gear (631) which provides the second planet carrier (63) with the inner ring tooth portion can be used as a mesher.

The invention provides an electric and pneumatic tool transmission structure, wherein the first clamping part (611) is a limiting clamping tooth provided on the outer periphery of the shift gear ring (61), and the second clamping part (70) ) Is a fixed clamping tooth arranged behind the inner wall of the connecting seat (20), and the fixed clamping tooth clamps the limit position when the electric and pneumatic tools (10) are in a low-speed and high-torque mode The teeth are locked, so that the speed change gear ring (61) cannot be driven and rotated by the first planet carrier (62) in the low speed and high torque mode (please also refer to the third figure and the fourth figure at the same time) View), through the ring teeth (623) is set The design of the outer periphery in front of the first planet carrier (62) enables the electric and pneumatic tools (10) to drive the speed change gear ring (61) through the traction member (40) with the knob (50) ) Those who have reached the smooth switch in the use mode (please also observe from the third picture and the fifth picture).

The invention provides an electric and pneumatic tool transmission structure, wherein the first clamping part (611) is a limiting clamping tooth provided on the outer periphery of the shift gear ring (61), and the second clamping part (70) ) Is a fixed clamping tooth provided in front of the inner wall of the connecting seat (20), and the fixed clamping tooth clamps the limit position when the electric and pneumatic tools (10) are in a low speed and high torque mode The teeth are locked so that the gear ring (61) cannot be driven and rotated by the first planet carrier (62) in the low speed and high torque mode (please also refer to the sixth figure with the seventh figure) View), through the ring gear (623) is provided on the outer periphery of the first planet carrier (62) design, so that the electric and pneumatic tools (10) can use the knob (50) The traction member (40) drives the shifting gear ring (61) to reach the smooth switching of the use mode (please also observe from the sixth figure and the eighth figure).

The invention provides an electric and pneumatic tool transmission structure, wherein the first clamping part (611) is a limiting clamping block protruding from the rear end of the shift gear ring (61), and the second clamping part (70) ) Is a fixed clamping block protruding from the front end of the fixed ring gear (64), and the fixed clamping block is used to clamp the limit card when the electric and pneumatic tools (10) are in a low speed and high torque mode Block, so that the gear ring (61) cannot be driven and rotated by the first planet carrier (62) in the low speed and high torque mode (please also use the ninth picture with the tenth picture and the tenth (A view shown in the figure), through the design of the ring teeth (623) is provided on the outer periphery of the front of the first planet carrier (62), so that the electric and pneumatic tools (10) can use the knob ( 50) Drive the shift gear ring (61) forward through the traction member (40) to reach the use mode The smooth switch in the formula (please also observe from the ninth picture with the twelfth picture).

The invention provides an electric and pneumatic tool transmission structure, wherein the first clamping part (611) is a limiting clamping block protruding from the front end of the shift gear ring (61), and the second clamping part (70) ) Is a fixed block protruding from the second end (302) (rear end) of the machine head (30), and the fixed block is in the normal state of the low speed and high torque mode of the electric and pneumatic tools (10) The lower limit block is blocked, so that the transmission ring gear (61) cannot be driven and rotated by the first planet carrier (62) together in this low speed and high torque mode (please also (The three figures are combined with the views shown in the fourteenth and fifteenth figures.) The design of the ring gear (623) is provided on the outer periphery of the rear of the first planet carrier (62), so that the electric and pneumatic The tool (10) can use the knob (50) to drive the shift gear ring (61) through the traction member (40) to achieve a smooth switch in the use mode (please also refer to the thirteenth picture with the tenth) Viewed in Figure 6).

The invention provides an electric and pneumatic tool transmission structure, wherein a disc-shaped cover (21) is further incorporated in the second opening (202) of the connecting seat (20), so that the cover (21) It is combined to stop the fixed gear ring (64) from coming out of the second opening (202), and the cover (21) has a through hole in the center.

The invention provides an electric and pneumatic tool transmission structure, wherein the first combining section (203) and the second combining section (304) are provided with inner and outer threads.

The invention provides an electric and pneumatic tool transmission structure, wherein the driven part (43) is a plurality of convex buttons arranged on the outer periphery of the collar (41), and the active part (51) can provide all The convex button is a spiral groove to follow during operation.

With the above-mentioned structure, since the second embedding portion (70) normally holds the The transmission gear ring (61), so when the transmission assembly (60) receives the power generated by the motor of the electric and pneumatic tool (10) together with the second planet gears (631) of the second planet carrier (63) At this time, the transmission ring gear (61) cannot be driven by the first planet carrier (62) to rotate, so that the transmission assembly (60) can only be fixed by the ring gear (64), the second planetary gear (631), the sun The sequential connection of the gear (632) and the first planetary gear (622), in accordance with the appropriate reduction ratio set by the first planetary gear (622) (that is, the first planetary gear 622 rotates one revolution around the sun gear 632 The central shaft 621 can only rotate about one third of a turn, or the central shaft 621 makes one rotation, and the first planetary gear 622 needs to make three rotations), outputting power in a mode of low speed and high torque, so that Use this mode to provide a need for use (please observe from the fourth picture, seventh picture, tenth picture and fourteenth picture at the same time).

If high rotation speed and low torque are required during use, turn the knob (50) in one direction to drive the speed change by the knob (50) through the claw (42) of the traction member (40) The gear ring (61) translates forward or backward, so that the shifting gear ring (61) can be disengaged from the second clamping part (70) after translation, and the shifting gear ring (61) The teeth of the inner ring simultaneously bite the first planetary gear (622) and the ring teeth (623), so that the first planetary gear (622), the first The planet carrier (62) and the central axis (621) are connected into one body, at this time, the first planet gear (622) can no longer freely rotate, so that the first planet carrier (62) and the central axis (621) The gear ring (61) can mesh with the first planet gear (622) and the sun gear (632), and directly drive the first planet carrier (62) and the central shaft (621) with the sun gear (632) , The gear ring (61) rotates, and the transmission without deceleration enables the electric and pneumatic tools (10) to be used with high speed and low torque output (please also refer to the fifth and eighth figures) (Figure, twelfth and sixteenth figures).

The above electric and pneumatic tool transmission structure has the following advantages: its electric and pneumatic tools (10) are equipped with two modes of low speed, high torque and high speed, and low torque, and the variable speed switching of the mode Simply turn the knob (50), so that the user only needs to prepare one of the electric and pneumatic tools (10) to meet most of the work needs. The cost of use is low. Storage will be more convenient and do not take up space, and operation is simpler and faster.

The above is only one of the preferred embodiments of the present invention, and it should not be used to limit the scope of implementation of the present invention; that is, all equal changes and modifications made in accordance with the scope of the patent application of the present invention should still belong to this creation Within the scope of the patent.

(20)‧‧‧Connector

(201)‧‧‧First opening

(202)‧‧‧Second opening

(203)‧‧‧The first combined section

(21)‧‧‧Cover

(30)‧‧‧Head

(301)‧‧‧The first end

(302)‧‧‧Second end

(303)‧‧‧Enlargement Department

(304)‧‧‧The second joint

(305)‧‧‧Through the slot

(306) ‧‧‧ edge

(31)‧‧‧bearing

(40)‧‧‧traction

(41)‧‧‧Ring

(42)‧‧‧Claw

(43)‧‧‧ Follower

(50)‧‧‧ knob

(51)‧‧‧ Active Department

(60)‧‧‧speed component

(61)‧‧‧speed gear ring

(611)‧‧‧The first card insertion department

(612)‧‧‧Groove

(62)‧‧‧The first planet carrier

(621)‧‧‧Central axis

(622)‧‧‧The first planetary gear

(623)‧‧‧ring tooth

(63)‧‧‧Second planet carrier

(631)‧‧‧Second planetary gear

(632)‧‧‧Sun gear

(64)‧‧‧Fixed gear ring

(70)‧‧‧Second embedding department

Claims (8)

An electric and pneumatic tool transmission structure, which is mainly provided with a connecting seat in front of the fuselage of an electric and pneumatic tool. The connecting seat is provided with a machine head, a traction member and a knob. By connecting the gear ring of the gear shift assembly in the connecting seat, the gear ring can be driven to move forward and backward by the operation of the knob outside the connecting seat through the traction member. In order to make use of the change of the locking state of the speed change gear ring after translation, the electric and pneumatic tools can be provided with two different modes of low speed, high torque and high speed, and low torque to provide a choice, and the speed change component also includes There is a first planet carrier installed in the inner ring portion of the transmission gear ring, a second planet carrier and a fixed gear ring installed inside the connecting seat and behind the transmission gear ring, and the first The planet carrier carries out power output by continuously passing through the connecting base and the machine head and protruding a central shaft at the front end of the machine head, and the speed change gear ring is provided with a first engaging part, The connection seat or the fixed ring or the machine head is optionally provided with a second clamping part, wherein: the connection seat is a hollow inner shell, so that the front and rear of the connection seat can become a first An opening and a second opening, and a first coupling section is provided in the first opening, so that the connection seat can be assembled with the machine head placed inside by the first coupling section; A hollow tube with a first end in the front and a second end in the rear, an outer periphery of the head is formed with an enlarged portion at the second end, so that the first portion provided on the enlarged portion The second coupling section is assembled with the first coupling section of the connecting seat, and the outer circumference of the enlarged portion is also provided with a number of through grooves at equal intervals, and the inner wall of the machine head is provided with a sleeve for providing The bearing on the outer periphery of the central shaft is fitted with a step edge; the traction member has a set of rings, and a number of claws matching the passing groove are projected from the rear end of the set of rings The ring and the knob are sequentially sleeved on the outer periphery of the handpiece that protrudes from the connection seat, so that the claw can penetrate into the interior of the connection seat from the through groove, and the outer circumference of the sleeve is used The formation of the follower and the fit with the active part of the inner wall of the knob, so that the traction member can be controlled by the rotation of the knob to be moved forward or backward; translation gear ring is provided with a The first engaging part and a ring groove, when the transmission gear ring is put into the sleeve inside the connecting seat, the ring groove is locked by the clasp, so that the transmission gear ring can smoothly communicate with the The traction member is connected, and the first engaging part is used to provide a catch or a disengagement, so that the transmission ring gear can achieve switching on the transmission. A plurality of first planet gears are pivotally provided on the first planet carrier. A planet carrier is sleeved into the inner ring portion of the transmission gear ring, so that the central shaft can extend from the connecting seat through the machine head, and meshes with the transmission gear ring with the first planetary gear On the inner ring tooth part, and the outer periphery of the first planet carrier is provided with ring teeth that will bite with the inner ring tooth part of the transmission ring in the mode of high speed and low torque, on the second planet carrier A plurality of second planetary gears are pivotally provided, and a sun gear meshing between each first planetary gears is combined in front. The fixed ring gear is installed and fixed in the second opening of the connecting seat. A planet carrier limits the second planet carrier that is pivotally sleeved in the connecting seat. With the arrangement of the inner ring teeth of the fixed gear ring, the second planet can also be provided with the inner ring teeth The second planetary gear of the carrier is the mesher. The electric and pneumatic tool transmission structure according to claim 1, wherein the first engaging portion It is a limit latch provided on the outer periphery of the shift gear ring, and the second engaging portion is a fixed latch provided behind the inner wall of the connection seat. The fixed latch is located on the electric and pneumatic tools. In the normal state of the low-speed, high-torque mode, the limit gear is stuck, so that the transmission ring gear cannot be driven and rotated by the first planetary carrier in the low-speed, high-torque mode. The ring gear is designed to be placed on the front outer periphery of the first planet carrier, so that the electric and pneumatic tools can use the knob to drive the transmission gear ring forward through the traction member to achieve a smooth switch in the use mode . The electric and pneumatic tool transmission structure according to claim 1, wherein the first clamping part is a limiting clamping tooth provided on the outer periphery of the shift gear ring, and the second clamping part is provided on the The fixed clamping teeth in front of the inner wall of the connecting seat are used to clamp the limit clamping teeth when the electric and pneumatic tools are in a low-speed and high-torque mode, so that the transmission gear ring cannot The low-speed, high-torque mode is driven by the first planet carrier to rotate together. The design of the ring teeth is provided on the outer periphery of the rear of the first planet carrier, so that the electric and pneumatic tools can use all The knob drives the shifting gear ring through the traction member to reach a smooth switch in the use mode. The electric and pneumatic tool transmission structure according to claim 1, wherein the first engaging portion is a limit clamping block protruding from the rear end of the shift gear ring, and the second engaging portion protrudes from the The fixed clamping block at the front end of the fixed gear ring is used to clamp the limit clamping block when the electric and pneumatic tools are in a low speed and high torque mode, so that the transmission gear ring cannot In the mode of low speed and high torque, the first planetary carrier rotates together, through The ring gear is arranged on the front outer periphery of the first planet carrier, so that the electric and pneumatic tools can drive the speed change gear ring forward through the traction member with the knob to achieve a smooth use mode Switcher. The electric and pneumatic tool transmission structure according to claim 1, wherein the first clamping portion is a limit clamping block protruding from the front end of the shift gear ring, and the second clamping portion is protruding from the The fixed block at the second end of the machine head is used to block the limit block when the electric and pneumatic tools are in a low-speed and high-torque mode, so that the transmission gear ring cannot In the mode of low speed and high torque, the first planet carrier drives the rotation together. The design of the ring teeth is provided on the outer periphery of the rear of the first planet carrier, so that the electric and pneumatic tools can use the The knob drives the shifting gear ring through the traction member to reach a smooth switch in the use mode. The electric and pneumatic tool transmission structure according to claim 1, wherein a disc-shaped cover is also incorporated in the second opening of the connecting seat, so as to stop the fixed ring gear by the combination of the cover It comes out from the second opening, and a central hole penetrates through the center of the cover. The electric and pneumatic tool transmission structure according to claim 1, wherein the first coupling section and the second coupling section are provided with inner and outer threads. The electric and pneumatic tool transmission structure according to claim 1, wherein the driven part is a plurality of convex buttons provided on the outer periphery of the collar, and the active part is capable of providing the convex button during operation Make a spiral groove to follow.

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