CN205057971U - Electric tool gear box gear adjusting device - Google Patents
Electric tool gear box gear adjusting device Download PDFInfo
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- CN205057971U CN205057971U CN201520745139.9U CN201520745139U CN205057971U CN 205057971 U CN205057971 U CN 205057971U CN 201520745139 U CN201520745139 U CN 201520745139U CN 205057971 U CN205057971 U CN 205057971U
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Abstract
The utility model provides an electric tool gear box gear adjusting device, main shell before the gear box, a torsion lid and a jump shelves mechanism, jump shelves mechanism including an annular adjustable screw silk and a jump shelves gasket subassembly, be provided with compression spring between adjustable screw silk and the jump shelves gasket subassembly, torsion lid and adjustable screw silk screw drive connection, a jump shelves gasket subassembly is followed axial slidable ground and is connected shell before the gear box, be equipped with the locking between the shell before torsion lid and the gear box or remove the locking mechanism that the endwise slip of shelves gasket subassembly was jumped to the locking, in the time of need adjusting the electric drill function, only need the torsion lid rotatoryly along the second direction, to jump grade gasket subassembly locking with regard to accessible locking mechanism fixes, make it can not the axial float, thereby realize the electric drill function, this electric tool gear box gear adjusting device can quick adjustment to electric drill shelves or impact shelves, it is very little to adjust the stroke, the operation is simple and convenient, high efficiency.
Description
Technical field
The utility model relates to electric tool technical field, particularly a kind of electric tool gearbox gear adjusting device.
Background technology
The electric tool of current percussion drill class has several mode of operation usually, as electric drill, electric screwdriver, percussion drill etc.When using screw shelves, must by the adjustment of control gear at screw shelves; Now, percussion drill can determine when trip stop according to screw shelves torsion setting, and during trip stop, percussion drill rotation motor continues to rotate, but screwdriver keeps inactive state, and percussion drill cannot export acrotorque.When using electric drill shelves, rotation motor and front end drill bit keep same action always, export acrotorque, maintain not trip stop.When using impact shelves, except possessing original electric drill shelves function, provide percussion by starting beater mechanism simultaneously, efficiently can implement bore operation to cement wall or other hard object.In order to carry out operating according to different needs and adjust, usually can design impact switching device between rotation motor and front end accessory, to realize the needs mechanically operating adjustment, and provide user to set the control interface of percussion drill.
Existing percussion drill gear-box shift structure is all that the direction increased along torsion sets gradually screw shelves, electric drill shelves, impacts shelves, and screw shelves comprise by minimum torsion shelves to the multiple torsion shelves of acrotorque shelves, electric drill gear is in next gear of the acrotorque shelves of screw shelves, in regulation stall process, when being adjusted to electric drill or impact function, need to regulate torsion lid just can be switched to electric drill shelves or impact shelves after the minimum torsion shelves of screw shelves are transferred to acrotorque gear, adjustment stroke is very large, governing speed is slow, troublesome poeration, efficiency is low.
Summary of the invention
Based on this, be necessary for the problems referred to above, provide a kind of can quick adjustment to electric drill shelves or impact shelves, electric tool gearbox gear adjusting device simple to operation.
A kind of electric tool gearbox gear adjusting device, include gear-box fore shell, turning set is located at the torsion lid at described gear-box fore shell top, and trip-stop mechanism, described trip-stop mechanism includes the annular adjustment screw being sheathed on gear-box fore shell vertically slidably, and be arranged at the trip stop gasket assembly of adjustment screw lower, Compress Spring is provided with between adjustment screw and trip stop gasket assembly, the lateral surface of adjustment screw is provided with external screw thread, torsion lid medial surface is provided with internal thread, the internal thread of torsion lid is connected with the external screw thread screw-driven of adjustment screw, trip stop gasket assembly is connected to gear-box fore shell vertically slidably, be provided with locking between torsion lid and gear-box fore shell or remove locking trip stop gasket assembly lockable mechanism in axial sliding, when torsion lid is rotated along first direction by minimum torsion gear, torsion cover strip dynamic adjustment screw slide downward makes Compress Spring compress, when torsion lid is rotated along the second direction being in reverse to first direction by minimum torsion gear, trip stop gasket assembly is locked in gear-box fore shell by lockable mechanism by torsion lid.
Wherein in an embodiment, described trip stop gasket assembly comprises the first pad and the second pad, described first pad can slide axially and be sheathed on gear-box fore shell un-rotatably, described second pad can slide axially and be sheathed on described gear-box fore shell rotationally, be connected with torsion spring between described first pad and the second pad, described Compress Spring lower end presses on described first pad upper surface.
Wherein in an embodiment, described gear-box fore shell upper periphery face offers the limit sliding chutes extended vertically, described first pad and the second pad medial surface are convexly equipped with the stopper protrusion with limit sliding chutes corresponding matching respectively to interior, and gear-box fore shell offers the locking draw-in groove with the stopper protrusion corresponding matching of the second pad along the circumference extension of the side of described second direction bottom limit sliding chutes; The lateral surface of the second pad is convexly equipped with stirs protuberance, and torsion lid inwall is convexly equipped with and drives block with described trip stop corresponding to protuberance of stirring; When torsion lid is rotated along second direction by minimum torsion gear, described trip stop drives described in block pushing tow and stirs protuberance, drives the second pad rotate along second direction and stopper protrusion is snapped in described locking draw-in groove.
Wherein in an embodiment, also include multiple ball, described ball is arranged at bottom described second pad and between the reducing gear internal gear of electric tool.
Wherein in an embodiment, the position of described gear-box fore shell bottom the described limit sliding chutes of correspondence offers connecting hole, and described ball is installed in described connecting hole respectively.
Wherein in an embodiment, output shaft is equipped with in described gear-box fore shell, the bottom of output shaft is connected with the reducing gear of electric tool, output sleeve is provided with beater mechanism and impacts conversion pad, impact conversion pad convex and be extended with impact conversion driving lever, the outer peripheral face in gear-box fore shell top portion offers step groove, impact the stepped locations that conversion driving lever is arranged in step groove, torsion lid inwall is convexly equipped with to be changed impact corresponding to driving lever and changes and drive block with impacting, when continuing again to rotate along second direction after torsion lid rotates appropriate angle by minimum torsion gear along second direction, the impact conversion of torsion lid drives described in block pushing tow impacts conversion driving lever, impact conversion pad is driven to rotate along second direction and make impact conversion driving lever turn to the bottom land position of step groove.
Wherein in an embodiment, be connected with between described impact conversion pad and gear-box fore shell and impact switch back torsion spring.
The utility model beneficial effect is: this electric tool gearbox gear adjusting device, and when torsion lid is rotated along first direction by minimum torsion gear, torsion lid drives adjustment screw to move axially downwards, and Compress Spring is compressed; When torsion lid is rotated along second direction by minimum torsion gear, trip stop gasket assembly is locked in gear-box fore shell by lockable mechanism by torsion lid.When needing to be adjusted to electric drill function, only torsion cover rim second direction need be rotated, just by lockable mechanism, trip stop gasket assembly locking is fixed, make it can not axial float, thus realize electric drill function, this electric tool gearbox gear adjusting device can quick adjustment to electric drill shelves or impact shelves, adjustment stroke is very little, simple to operation, efficiency is high.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the electric tool gearbox gear adjusting device of an embodiment;
Fig. 2 is the cross-sectional view of the electric tool gearbox gear adjusting device of an embodiment;
Fig. 3 is the decomposing schematic representation of the electric tool gearbox gear adjusting device of an embodiment;
Fig. 4 is the torsion lid structural representation of the electric tool gearbox gear adjusting device of an embodiment;
Fig. 5 is the impact conversion pad of the electric tool gearbox gear adjusting device of an embodiment and the assembling schematic diagram of gear-box fore shell.
Wherein: gear-box fore shell 1, limit sliding chutes 11, locking draw-in groove 12, step groove 13, step 131, bottom land 132, connecting hole 14, torsion lid 2, internal thread 21, trip stop drives block 22, impact conversion and drive block 23, reducing gear 3, internal gear 31, adjustment screw 4, external screw thread 41, Compress Spring 5, trip stop gasket assembly 6, first pad 61, second pad 62, stir protuberance 621, torsion spring 63, stopper protrusion 64, output shaft 7, beater mechanism 8, impact conversion pad 9, impact conversion driving lever 91, impact switch back torsion spring 92, ball 10.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage more clear, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to understand the technical solution of the utility model better, and be not used in restriction the utility model.
As shown in Figure 1, Figure 2 and Figure 3, a kind of electric tool gearbox gear adjusting device, includes gear-box fore shell 1, and turning set is located at the torsion lid 2 at described gear-box fore shell 1 top, and trip-stop mechanism.
Described trip-stop mechanism includes the annular adjustment screw 4 being sheathed on gear-box fore shell 1 vertically slidably, and is arranged at the trip stop gasket assembly 6 below adjustment screw 4.Compress Spring 5 is provided with between adjustment screw 4 and trip stop gasket assembly 6.The lateral surface of adjustment screw 4 is provided with external screw thread 41, and torsion lid 2 medial surface is provided with internal thread 21, and the internal thread 21 of torsion lid 2 is connected with external screw thread 41 screw-driven of adjustment screw 4.Trip stop gasket assembly 6 is connected to gear-box fore shell 1 vertically slidably.Wherein, described axis refers to the Axis Extension direction along electric tool working shaft.
Be provided with locking between torsion lid 2 and gear-box fore shell 1 or remove locking trip stop gasket assembly 6 lockable mechanism in axial sliding.When torsion lid 2 is rotated along first direction by minimum torsion gear, torsion lid 2 drives adjustment screw 4 slide downward that Compress Spring 5 is compressed, when torsion lid 2 is rotated along the second direction being in reverse to first direction by minimum torsion gear, trip stop gasket assembly 6 is locked in gear-box fore shell 1 by lockable mechanism by torsion lid 2.Wherein, according to use habit, can be described first direction in a clockwise direction, so rotate along first direction and namely turn clockwise, now second direction be counterclockwise.Certainly, can according to actual needs, take also counter clockwise direction as first direction, then second direction be clockwise.
Be example as first direction in a clockwise direction, when torsion lid 2 is rotated clockwise by minimum torsion gear, torsion lid 2 drives adjustment screw 4 slide downward, and Compress Spring 5 is compressed, and during electric tool gearbox trip stop, trip stop gasket assembly 6 can along gear-box fore shell about 1 play.When torsion lid 2 is counterclockwise rotated by minimum torsion gear, then trip stop gasket assembly 6 is locked on gear-box fore shell 1 by lockable mechanism by torsion lid 2.When needing to be adjusted to electric drill function, only torsion lid 2 counterclockwise need be rotated, just by lockable mechanism, trip stop gasket assembly 6 locking be fixed, make it can not axial float, thus realize electric drill function.This electric tool gearbox gear adjusting device can quick adjustment to electric drill shelves or impact shelves, adjustment stroke is very little, simple to operation, and efficiency is high.
As shown in Figure 3, wherein in an embodiment, described trip stop gasket assembly 6 comprises the first pad 61 and the second pad 62.First pad 61 is stacked on the second pad 62.Described first pad 61 can slide axially and be sheathed on gear-box fore shell 1 un-rotatably, and described second pad 62 can slide axially and be sheathed on described gear-box fore shell 1 rotationally.Torsion spring 63 is connected with between described first pad 61 and the second pad 62.Described Compress Spring 5 lower end presses on described first pad 61 upper surface.Because the first pad 61 can not rotate relative to gear-box fore shell 1, second 62, pad can rotate relative to gear-box fore shell 1, simultaneously, first pad 61 and the second pad 62 all can slide axially relative to gear-box fore shell 1, so when the first pad 61 and the second pad 62 be all in can relative to gear-box fore shell 1 in axial sliding position time, trip stop gasket assembly 6 along gear-box fore shell 1 axial float, thus can realize the trip stop of electric tool gearbox.And when torsion lid 2 drives trip stop gasket assembly 6 to rotate to lock position by lockable mechanism, the second pad 62 is only driven to be rotated counterclockwise to lock position, and the first pad 61 does not rotate, then press between Compress Spring 5 end of the first pad 61 and the first pad 61 and sliding friction does not occur, avoid wearing and tearing.Simultaneously, because the first pad 61 does not rotate, the second pad 62 rotates, torsion spring 63 torsional deflection then between the first pad 61 and the second pad 62 and produce and make the pivotal reseting elasticity of the second pad 62, when the driving force of lockable mechanism disappears, second pad 62 automatic rotary under the driving of described reseting elasticity, so that gear next time regulates.The gasket assembly of trip stop described in the present embodiment 6 arranges by split the structure that the first pad 61 is connected with the second pad 62 and by torsion spring 63, decreases wearing and tearing, improves functional reliability and working life.
As shown in Fig. 3, Fig. 4 and Fig. 5, wherein in an embodiment, described gear-box fore shell 1 upper periphery face offers the limit sliding chutes 11 extended vertically, described first pad 61 and the second pad 62 medial surface are convexly equipped with the stopper protrusion 64 with limit sliding chutes 11 corresponding matching respectively to interior, and gear-box fore shell 1 offers the locking draw-in groove 12 with stopper protrusion 64 corresponding matching of the second pad 62 along the circumference extension of the side of described second direction bottom limit sliding chutes 11.The lateral surface of the second pad 62 is convexly equipped with stirs protuberance 621, and torsion lid 2 inwall is convexly equipped with and drives block 22 with described trip stop corresponding to protuberance 621 of stirring.When torsion lid 2 is rotated counterclockwise by minimum torsion gear, described trip stop drives described in block 22 pushing tow and stirs protuberance 621, drives the second pad 62 be rotated counterclockwise and stopper protrusion 64 is snapped in described locking draw-in groove 12.In the present embodiment, described stopper protrusion 64, limit sliding chutes 11, stir protuberance 621 and trip stop and drive block 22 namely to constitute above-mentioned lockable mechanism, its structure is simple, and reliable operation is easy to operate.
Wherein in an embodiment, also include multiple ball 10, described ball 10 is arranged at bottom described second pad 62 and between reducing gear 3 internal gear 31 of electric tool.So, torsion lid 2 regulates the decrement of Compress Spring 5 to regulate the pressure of the internal gear 31 of ball 10 pairs of reducing gears 3 by adjustment screw 4, and during trip stop, ball 10 with trip stop gasket assembly 6 play vertically, thus realizes trip stop.Certainly, in other embodiments, described reducing gear 3 is also connected to trip stop gasket assembly 6 by other syndeton and realizes trip stop adjustment.
As shown in Figure 5, in a specific embodiment, the position of described gear-box fore shell 1 bottom the described limit sliding chutes 11 of correspondence offers connecting hole 14, and described ball 10 is installed in described connecting hole 14 respectively.So, when the stopper protrusion 64 of the second pad 62 is in described limit sliding chutes 11, ball 10 can with described trip stop gasket assembly 6 along limit sliding chutes 11 axial float.And when the second pad 62 rotates and makes stopper protrusion 64 snap in locking draw-in groove 12, the second pad 62 move axially by locking, thus be plugged in connecting hole 14 by ball 10, ball 10 cannot push trip stop gasket assembly 6 and move.
As shown in Figures 2 and 3, wherein in an embodiment, output shaft 7 is equipped with in described gear-box fore shell 1, the bottom of output shaft 7 is connected with the reducing gear 3 of electric tool, output shaft 7 is arranged with beater mechanism 8 and impacts conversion pad 9, impact conversion pad 9 convex and be extended with impact conversion driving lever 91, the outer peripheral face in gear-box fore shell 1 top portion offers step groove 13, impact step 131 position that conversion driving lever 91 is arranged in step groove 13, torsion lid 2 inwall is convexly equipped with to be changed impact corresponding to driving lever 91 and changes and drive block 23 with impacting, when continuing again to rotate along second direction after torsion lid 2 rotates appropriate angle by minimum torsion gear along second direction, the impact conversion of torsion lid 2 drives described in block 23 pushing tow impacts conversion driving lever 91, impact conversion pad 9 is driven to rotate along second direction and make impact conversion driving lever 91 turn to bottom land 132 position of step groove 13.
Wherein in an embodiment, be connected with between described impact conversion pad 9 and gear-box fore shell 1 and impact switch back torsion spring 92.
Impact conversion driving lever 91 and there is space movable up and down, make beater mechanism 8 that output shaft about 7 play can be driven to realize impact function, when being namely adjusted to impact shelves, torsion lid 2 drives the rotation of impact conversion pad 9 to realize impact function while driving trip stop gasket assembly 6 to rotate.Impact conversion pad 9 and the impact switch back torsion spring 92 be connected between gear-box fore shell 1, when being adjusted to electric drill shelves or screw shelves, impacting conversion pad 9 can automatically reset under the effect impacting switch back torsion spring 92.
The above embodiment is only preferred embodiment of the present utility model; it should be noted that; for those skilled in the art; under the prerequisite not departing from the utility model principle; can also make some improvement and distortion, these improve and distortion also should be considered as not departing from protection domain of the present utility model.
Claims (7)
1. electric tool gearbox gear adjusting device, include gear-box fore shell, turning set is located at the torsion lid at described gear-box fore shell top, and trip-stop mechanism, it is characterized in that: described trip-stop mechanism includes the annular adjustment screw being sheathed on gear-box fore shell vertically slidably, and be arranged at the trip stop gasket assembly of adjustment screw lower, Compress Spring is provided with between adjustment screw and trip stop gasket assembly, the lateral surface of adjustment screw is provided with external screw thread, torsion lid medial surface is provided with internal thread, the internal thread of torsion lid is connected with the external screw thread screw-driven of adjustment screw, trip stop gasket assembly is connected to gear-box fore shell vertically slidably, be provided with locking between torsion lid and gear-box fore shell or remove locking trip stop gasket assembly lockable mechanism in axial sliding, when torsion lid is rotated along first direction by minimum torsion gear, torsion cover strip dynamic adjustment screw slide downward makes Compress Spring compress, when torsion lid is rotated along the second direction being in reverse to first direction by minimum torsion gear, trip stop gasket assembly is locked in gear-box fore shell by lockable mechanism by torsion lid.
2. electric tool gearbox gear adjusting device according to claim 1, it is characterized in that: described trip stop gasket assembly comprises the first pad and the second pad, described first pad can slide axially and be sheathed on gear-box fore shell un-rotatably, described second pad can slide axially and be sheathed on described gear-box fore shell rotationally, be connected with torsion spring between described first pad and the second pad, described Compress Spring lower end presses on described first pad upper surface.
3. electric tool gearbox gear adjusting device according to claim 2, it is characterized in that: described gear-box fore shell upper periphery face offers the limit sliding chutes extended vertically, described first pad and the second pad medial surface are convexly equipped with the stopper protrusion with limit sliding chutes corresponding matching respectively to interior, and gear-box fore shell offers the locking draw-in groove with the stopper protrusion corresponding matching of the second pad along the circumference extension of the side of described second direction bottom limit sliding chutes; The lateral surface of the second pad is convexly equipped with stirs protuberance, and torsion lid inwall is convexly equipped with and drives block with described trip stop corresponding to protuberance of stirring; When torsion lid is rotated along second direction by minimum torsion gear, described trip stop drives described in block pushing tow and stirs protuberance, drives the second pad rotate along second direction and stopper protrusion is snapped in described locking draw-in groove.
4. electric tool gearbox gear adjusting device according to claim 3, is characterized in that: also include multiple ball, described ball is arranged at bottom described second pad and between the reducing gear internal gear of electric tool.
5. electric tool gearbox gear adjusting device according to claim 4, is characterized in that: the position of described gear-box fore shell bottom the described limit sliding chutes of correspondence offers connecting hole, and described ball is installed in described connecting hole respectively.
6. the electric tool gearbox gear adjusting device according to claim 1 ~ 5 any one, it is characterized in that: in described gear-box fore shell, be equipped with output shaft, the bottom of output shaft is connected with the reducing gear of electric tool, output sleeve is provided with beater mechanism and impacts conversion pad, impact conversion pad convex and be extended with impact conversion driving lever, the outer peripheral face in gear-box fore shell top portion offers step groove, impact the stepped locations that conversion driving lever is arranged in step groove, torsion lid inwall is convexly equipped with to be changed impact corresponding to driving lever and changes and drive block with impacting, when continuing again to rotate along second direction after torsion lid rotates appropriate angle by minimum torsion gear along second direction, the impact conversion of torsion lid drives described in block pushing tow impacts conversion driving lever, impact conversion pad is driven to rotate along second direction and make impact conversion driving lever turn to the bottom land position of step groove.
7. electric tool gearbox gear adjusting device according to claim 6, is characterized in that: be connected with between described impact conversion pad and gear-box fore shell and impact switch back torsion spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520745139.9U CN205057971U (en) | 2015-09-24 | 2015-09-24 | Electric tool gear box gear adjusting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520745139.9U CN205057971U (en) | 2015-09-24 | 2015-09-24 | Electric tool gear box gear adjusting device |
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| CN205057971U true CN205057971U (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520745139.9U Active CN205057971U (en) | 2015-09-24 | 2015-09-24 | Electric tool gear box gear adjusting device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106239433A (en) * | 2016-09-14 | 2016-12-21 | 群胜科技（苏州）有限公司 | A kind of electric impact drill gear adjusting device |
| US11964376B2 (en) | 2020-09-24 | 2024-04-23 | Techtronic Cordless Gp | Multi-function handheld electric tool |
-
2015
- 2015-09-24 CN CN201520745139.9U patent/CN205057971U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106239433A (en) * | 2016-09-14 | 2016-12-21 | 群胜科技（苏州）有限公司 | A kind of electric impact drill gear adjusting device |
| US11964376B2 (en) | 2020-09-24 | 2024-04-23 | Techtronic Cordless Gp | Multi-function handheld electric tool |
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