CN105500296A - Electric screw driver with vibration reduction separating piece - Google Patents
Electric screw driver with vibration reduction separating piece Download PDFInfo
- Publication number
- CN105500296A CN105500296A CN201511035529.8A CN201511035529A CN105500296A CN 105500296 A CN105500296 A CN 105500296A CN 201511035529 A CN201511035529 A CN 201511035529A CN 105500296 A CN105500296 A CN 105500296A
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- CN
- China
- Prior art keywords
- housing
- motor
- vibration damping
- shell
- screw driver
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
- B25F5/006—Vibration damping means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention relates to an electric screw driver with a vibration reduction separating piece. The electric screw driver is provided with a shell and a handle, wherein a motor is arranged in the shell; an output shaft is arranged on the front end of the shell; a cavity is formed in an inserting hole in a screw driver head which is arranged on the front end of the output shaft. During work, vibration can be generated by the motor and the screw driver head of the output shaft, the vibration can be transmitted to the shell and the handle, and operation of an operator on the electric screw driver can be affected, so that the elastic vibration reduction separating piece is arranged in the shell in order to separate the vibration from the shell, and the vibration reduction separating piece is fixedly arranged on the shell of the motor.
Description
Technical field
The present invention relates to a kind of electric tool, particularly a kind of electric screw driver that there is vibration damping and cut off.
Background technology
Electric screw driver is a kind of hand tools, generally has shell and is arranged on the screwdriver on output shaft.Be widely used in industry and household field, be generally used for installing or removing threaded fastener, moment of torsion or rotation are applied to workpiece.
Existing electric screw driver comprises housing, arranges motor wherein, and housing as the position that operator grips, is equipped with screwdriver in the front end of housing, battery drive motors simultaneously, and motor drives screwdriver to rotate by drive disk assembly.But existing electric screw driver also exists many defects, as poor in battery endurance quality, often need maintaining, in the course of work, motor oscillating is violent, seriously expend the muscle power of operator, time fastening, motor screwdriver easily blocks, and makes motor there is the danger of transshipping and causing motor damage.
Summary of the invention
Based on above-mentioned deficiency, invention has been further investigation, develop a kind of have vibration damping cut off electric screw driver.
One aspect of the present invention provides a kind of electric screw driver, there is housing, handle, in described housing, motor is installed, the front end of described housing is provided with output shaft, described output shaft is connected by transmission mechanism with described motor, the front end of described output shaft is provided with driver bit jack, the driver bit of different model can be installed in described driver bit jack, in described housing, be provided with flexible vibration damping cut off, described vibration damping partition is fixed on the shell of described motor, described housing, vibration damping cuts off, the shell of motor is axially gone up, superimposedly successively to be nested together, described vibration damping cuts off and is roughly formed as and the tube that extends on described housing axial direction, and merge into tube by two half of parts, this tube closely surrounds the shell of described motor and fits with the peripheral outline of described housing, described vibration damping cuts off the fixed sleeving comprised on a shell being fixed on described motor, coaxial sleeve is located at buffer ferrule outside described fixed sleeving, fixed sleeving described in a coaxial surrounding with described buffer ferrule but the casing support be fixedly connected with described housing.
The present invention provides a kind of electric screw driver on the other hand, and described housing has on the shell being fixed on described motor in gap, and described vibration damping cuts off the described gap of at least part of filling.
The present invention on the other hand provides a kind of electric screw driver, and described fixed sleeving and described casing support and the described buffer ferrule between them are radially outwards stacked to coaxial configuration from inner; Described housing and described casing support are fixedly connected into an assembly, and this assembly is rigidity for the elasticity of the rubber of described buffer ferrule, the shell of described motor with the elasticity of the rubber of described fixed sleeving be compared be also rigidity.
The present invention provides a kind of electric screw driver on the other hand, described fixed sleeving, casing support, buffer ferrule are respectively according to the technique integrated injection molding of two component injection mo(u)lding, and the cross section of described buffer ferrule is roughly formed as S shape, make the sleeve portion of described casing support after assembling, surrounded by described buffer ferrule diametrically with the sleeve portion of described fixed sleeving.
Beneficial effect of the present invention is: operationally, and the driver bit of motor and output shaft can produce vibration, and this vibration can pass to housing and handle, affects the operation of operator's electric screw driver.Therefore in order to vibration and housing be separated, the invention provides a kind of electric screw driver, arrange flexible vibration damping and cutting off in housing, vibration damping partition is fixed on the housing of motor.There is gap between housing 1 and motor housing and there are two aspect effects, on the one hand the Relative Vibration between motor and housing is cut off, on the other hand, avoiding wearing and tearing or damage when vibrating between the shell of motor and housing.
Accompanying drawing explanation
Accompanying drawing 1 is the overall system structure schematic diagram of electric screw driver of the present invention.
Accompanying drawing 2 is structural representations of the transmission mechanism of electric screw driver of the present invention.
Accompanying drawing 3 is structural representations of the output shaft of electric screw driver of the present invention.
Accompanying drawing 4 is structural representations that the vibrationproof of electric screw driver of the present invention cuts off.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further described, but does not limit the invention to these detailed description of the invention.One skilled in the art would recognize that all alternatives, improvement project and the equivalents that present invention encompasses and may comprise in Claims scope.
Embodiment 1
As shown in Figure 1, the invention provides a kind of electric screw driver, there is housing 1, handle 2, motor 3 is installed in housing 1, housing 1 front end is provided with output shaft 12, output shaft 12 is connected by transmission mechanism 4 with motor 3, and the front end of output shaft 12 is provided with driver bit jack, can install the driver bit 16 of different model in driver bit jack.
Control unit 19 is provided with in handle 2, for the transmission/reception 50 of signal sending/receiving, memory cell 51, charging socket 52, carries out the switch 17 that is connected, the charging socket 42 be connected with the batteries 18 below handle 2 with motor 3 by control unit 19, batteries 18 is provided with below handle 2, control motor 3 by switch 17 to start and stop, being connected with extraneous power supply by charging socket 12, can charge to batteries 18.
As shown in Figure 2, described transmission mechanism 4 comprises: the ring gear 6 being arranged on motor 3 front end, the teeth portion of ring gear 6 is arranged on the inner ring place of annular, the inside of ring gear 6 is provided with pinion frame 26 near one end, front of electric screw driver, by the transmission of some planetary gears 28 between ring gear 6 and pinion frame 26, output shaft 12 is connected with pinion frame 26, when motor 3 drives ring gear 6 to rotate, drive the rotation of planetary gear 28 and pinion frame 26, make output shaft 12 synchronous axial system.
The front end of housing 1 is provided with adjusting ring 11, threaded collar 22 is provided with in adjusting ring 11, the front end face of ring gear 6 is the torque adjustment face that height rises and falls, the spin 27 abutted with torque adjustment face is provided with in housing 1, spin and latch 25 abut against, the front end of latch 25 is provided with check plate 24, spiral support spring 21 is provided with between check plate 24 and threaded collar 22, by rotating adjusting ring 11 actuating thread ring 22, helical spring 21 is made to be compressed or extend, thus pressure increase between the torque adjustment face making spin 27 and ring gear 6 or reduction, spin 27 becomes the ladder being difficult to or easily crossing between torque adjustment face, thus reach mechanical adjustment driver bit and can adjust between different outputting torsion.When needing larger outputting torsion, regulating adjusting ring 11 that threaded collar is forwards moved, when needing less outputting torsion, regulating adjusting ring 11 that threaded collar 22 is rearward moved.
The rear end of output shaft 12 is also provided with stop pin 23, the sidewall of stop pin 23 arranges groove, pinion frame 26 is provided with the projection coordinated with stop pin 23 upper groove, has locking circle 8 outside stop pin, in the space between locking circle 8 and stop pin 23, self-locking block 7 is set, when motor 3 quits work, stop pin 23, pinion frame 26, automatically locks between self-locking block 7 three, thus output shaft cannot rotate, can use as normal screws cutter.
Operationally, motor 3 can produce vibration with the driver bit 6 of output shaft, and this vibration can pass to housing 1 and handle 2, affects the operation of operator's electric screw driver.Therefore in order to vibration and housing 1 be separated, the invention provides a kind of electric screw driver, arrange flexible vibration damping and cutting off 100 in housing 1, vibration damping cuts off 100 and is fixed on the housing 1 of motor 3.
The vibration damping preferably with caoutchouc elasticity cuts off 100, and it allows motor 3 to make Relative Vibration relative to housing 1, and the quality of rubber materials of vibration damping housing 1 has the character of elastic deflection and buffering, and the vibrational energy making motor 3 be delivered to housing 1 reduces significantly.
Housing 1 is axially gone up, and the superimposed vibration damping that is enclosed within cuts off on 100, and housing 1 has on the shell being fixed on motor 3 in gap 101.There is gap 101 between housing 1 and motor 3 shell and there are two aspect effects, on the one hand the Relative Vibration between motor 3 and housing 1 is cut off, on the other hand, avoid and to wear and tear when vibrating between the shell of motor 3 and housing 1 or damage.
As shown in Figure 4, vibration damping cuts off 100 and is roughly formed as and the tube that extends on housing 1 axial direction, merge into tube by two half of parts, this tube closely surrounds the shell of motor 3 (not shown) and fits with the peripheral outline of housing 1.Vibration damping partition 100 fixed sleeving 200, coaxial sleeve comprised on a shell being fixed on motor 3 are located at the buffer ferrule 400 outside fixed sleeving, a coaxial surrounding fixed sleeving 200 and buffer ferrule 400, but the casing support 500 be fixedly connected with housing 1.Fixed sleeving 200 and casing support 500 and the buffer ferrule between them 400 are radially outwards stacked to coaxial configuration from inner.Housing 1 and casing support are fixedly connected into an assembly, and this assembly is rigidity for the elasticity of the rubber of buffer ferrule 400.The shell of same motor 3 is also rigidity with the elasticity of the rubber of fixed sleeving 200 compared with being.
Preferably, fixed sleeving 200, casing support 500, buffer ferrule 400 are respectively according to the technique integrated injection molding of two component injection mo(u)lding, and the cross section of buffer ferrule 400 is roughly formed as S shape, make the sleeve portion 501 assembling rear sleeve support 500, be buffered sleeve pipe 400 diametrically with the sleeve portion 201 of fixed sleeving 200 and surround.
Embodiment 2
As shown in Figure 3, the invention provides a kind of electric screw driver, in the driver bit jack of wherein output shaft 12 front end, there is cavity 121, the cross sectional shape of this cavity and the bar handle 161 of driver bit 16 complementary, as cavity formation rule six shapes, the bar handle 161 of driver bit forms hexahedron.Described cavity 121 is coaxially formed with output shaft 12, the sidewall of cavity 121 is offered two relative accommodation holes 122, and the length direction of accommodation hole is larger than the width of accommodation hole, is formed as the profile of strip.
In each accommodation hole, have a spheroid 123, this spheroid 123 stretch in cavity 121 partially, spheroid 123 degree of depth entered in cavity 121 be subject to the width of accommodation hole 122 profile restriction.Spheroid 123 can move in the accommodation hole 122 of strip along the axis direction of housing, and strip accommodation hole 122 front end face and rear end face limit the move distance of spheroid.
The adjustment collar 124 is arranged on the axially outside of accommodation hole 122, and surrounds two strip accommodation holes 122.By helical spring 125, the adjustment collar 124 is tightly squeezed on stop circle 126, stops that circle 126 is stuck in the draw-in groove outside output shaft.Helical spring 125 is clamped between the adjustment collar 124 and snap ring 163 on output shaft 12.Operator is by making the adjustment collar 124 move in the axial direction with the power overcoming helical spring 125.
The adjustment collar 124 has rotational symmetric profile within it on the surface.This profile has blocking surface 128, and blocking surface 128 is for stopping the radial motion of spheroid 123, and when spheroid 123 contacts blocking surface 128, a part for spheroid 123 stretches in cavity 121.Bar handle 161 herein corresponding formation shape adapts to but radius is greater than the arc groove 165 of spheroid.
Blocking surface 128 is less than the radial dimension of spheroid 123 at a distance of the radial spacing of cavity 121.When adjusting the collar 124 and making spheroid 123 abut against on the end face of accommodation hole 122 front end, blocking surface 128 tangentially leans against on spheroid.
The inclined-plane 129 that the rear of blocking surface 128 has tilted rearward to connect, inclined-plane 129 increases the spacing between inclined-plane and axis.At beveled ends, the size of radial spacing at least make spheroid diametrically can completely from cavity 121 out.Stage clip 168 press against two spheroids in the axial direction.Spheroid 123 is remained on by bayonet lock 169 compressing of stage clip 168 end and abuts against accommodation hole 122 front end face.
Thus, when inserting or remove driver bit 16, bar handle 161 oppresses spheroid 123, stage clip 168 is out of shape, and spheroid 123 is extruded from cavity, then snaps in the arc groove 165 on bar handle 161, without the need to other nuisance operation, facilitate and change different driver bits.
Operationally, motor 3 can produce vibration with the driver bit 6 of output shaft, and this vibration can pass to housing 1 and handle 2, affects the operation of operator's electric screw driver.Therefore in order to vibration and housing 1 be separated, the invention provides a kind of electric screw driver, arrange flexible vibration damping and cutting off 100 in housing 1, vibration damping cuts off 100 and is fixed on the housing 1 of motor 3.
The vibration damping preferably with caoutchouc elasticity cuts off 100, and it allows motor 3 to make Relative Vibration relative to housing 1, and the quality of rubber materials of vibration damping housing 1 has the character of elastic deflection and buffering, and the vibrational energy making motor 3 be delivered to housing 1 reduces significantly.
Housing 1 is axially gone up, and the superimposed vibration damping that is enclosed within cuts off on 100, and housing 1 has on the shell being fixed on motor 3 in gap 101.There is gap 101 between housing 1 and motor 3 shell and there are two aspect effects, on the one hand the Relative Vibration between motor 3 and housing 1 is cut off, on the other hand, avoid and to wear and tear when vibrating between the shell of motor 3 and housing 1 or damage.
As shown in Figure 4, vibration damping cuts off 100 and is roughly formed as and the tube that extends on housing 1 axial direction, merge into tube by two half of parts, this tube closely surrounds the shell of motor 3 (not shown) and fits with the peripheral outline of housing 1.Vibration damping partition 100 fixed sleeving 200, coaxial sleeve comprised on a shell being fixed on motor 3 are located at the buffer ferrule 400 outside fixed sleeving, a coaxial surrounding fixed sleeving 200 and buffer ferrule 400, but the casing support 500 be fixedly connected with housing 1.Fixed sleeving 200 and casing support 500 and the buffer ferrule between them 400 are radially outwards stacked to coaxial configuration from inner.Be fixedly connected into an assembly between housing 1 and sleeve pipe, and this assembly is rigidity for the elasticity of the rubber of buffer ferrule 400.The shell of same motor 3 is also rigidity with the elasticity of the rubber of fixed sleeving 200 compared with being.
Preferably, fixed sleeving 200, casing support 500, buffer ferrule 400 are respectively according to the technique integrated injection molding of two component injection mo(u)lding, and the cross section of buffer ferrule 400 is roughly formed as S shape, make the sleeve portion 501 assembling rear sleeve support 500, be buffered sleeve pipe 400 diametrically with the sleeve portion 201 of fixed sleeving 200 and surround.
Above-mentioned specific embodiment is schematically illustrating content of the present invention just, do not represent the restriction to content of the present invention.It may occur to persons skilled in the art that, in the present invention, electric screw driver concrete structure can have a lot of versions, but the technical characteristics of the used technical solution and the present invention same or similar, all should be covered by scope.
Claims (4)
1. the electric screw driver that there is vibration damping and cut off, there is housing, handle, in described housing, motor is installed, the front end of described housing is provided with output shaft, described output shaft is connected by transmission mechanism with described motor, the front end of described output shaft is provided with driver bit jack, can install the driver bit of different model, it is characterized in that in described driver bit jack:
In described housing, be provided with flexible vibration damping cut off, described vibration damping cuts off and is fixed on the shell of described motor, and described housing, vibration damping cut off, the shell of motor is axially gone up, and is superimposedly successively nested together;
Described vibration damping cuts off and is roughly formed as and the tube that extends on described housing axial direction, and merge into tube by two half of parts, this tube closely surrounds the shell of described motor and fits with the peripheral outline of described housing;
Described vibration damping cuts off the fixed sleeving comprised on a shell being fixed on described motor, coaxial sleeve is located at buffer ferrule outside described fixed sleeving, fixed sleeving described in a coaxial surrounding with described buffer ferrule but the casing support be fixedly connected with described housing.
2. as claimed in claim 1 a kind of have vibration damping cut off electric screw driver, it is characterized in that: described housing has on the shell being fixed on described motor in gap, described vibration damping cuts off the described gap of at least part of filling.
3. a kind of electric screw driver having vibration damping and cut off as claimed in claim 1, is characterized in that: described fixed sleeving and described casing support and the described buffer ferrule between them are radially outwards stacked to coaxial configuration from inner; Described housing and described casing support are fixedly connected into an assembly, and this assembly is rigidity for the elasticity of the rubber of described buffer ferrule, the shell of described motor with the elasticity of the rubber of described fixed sleeving be compared be also rigidity.
4. as claimed in claim 1 a kind of have vibration damping cut off electric screw driver, it is characterized in that: described fixed sleeving, casing support, buffer ferrule are respectively according to the technique integrated injection molding of two component injection mo(u)lding, and the cross section of described buffer ferrule is roughly formed as S shape, make the sleeve portion of described casing support after assembling, surrounded by described buffer ferrule diametrically with the sleeve portion of described fixed sleeving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511035529.8A CN105500296A (en) | 2015-12-31 | 2015-12-31 | Electric screw driver with vibration reduction separating piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511035529.8A CN105500296A (en) | 2015-12-31 | 2015-12-31 | Electric screw driver with vibration reduction separating piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105500296A true CN105500296A (en) | 2016-04-20 |
Family
ID=55708790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511035529.8A Pending CN105500296A (en) | 2015-12-31 | 2015-12-31 | Electric screw driver with vibration reduction separating piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105500296A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12021437B2 (en) | 2019-06-12 | 2024-06-25 | Milwaukee Electric Tool Corporation | Rotary power tool |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101175610A (en) * | 2005-05-14 | 2008-05-07 | 麦太保有限公司 | Motor driving tool machine with principal shaft braking/releasing device |
| CN101282822A (en) * | 2005-10-29 | 2008-10-08 | Aeg电动工具有限公司 | Hand machine tool |
| CN102029600A (en) * | 2009-09-25 | 2011-04-27 | 松下电工电动工具株式会社 | Electric power tool |
| CN102729225A (en) * | 2012-07-12 | 2012-10-17 | 南京德朔实业有限公司 | Quick clamping mechanism |
| CN103269834A (en) * | 2010-12-28 | 2013-08-28 | 日立工机株式会社 | Power tool |
| DE102012213067A1 (en) * | 2012-07-25 | 2014-01-30 | Robert Bosch Gmbh | Hand-held power tool for eccentric cam grinding machine, has coupling portions that are provided with vibration-damping elastomer formed with polyurethane foam |
| CN203438140U (en) * | 2013-09-05 | 2014-02-19 | 宁波中旺工具有限公司 | Self-cooled electric screwdriver |
-
2015
- 2015-12-31 CN CN201511035529.8A patent/CN105500296A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101175610A (en) * | 2005-05-14 | 2008-05-07 | 麦太保有限公司 | Motor driving tool machine with principal shaft braking/releasing device |
| CN101282822A (en) * | 2005-10-29 | 2008-10-08 | Aeg电动工具有限公司 | Hand machine tool |
| CN102029600A (en) * | 2009-09-25 | 2011-04-27 | 松下电工电动工具株式会社 | Electric power tool |
| CN103269834A (en) * | 2010-12-28 | 2013-08-28 | 日立工机株式会社 | Power tool |
| CN102729225A (en) * | 2012-07-12 | 2012-10-17 | 南京德朔实业有限公司 | Quick clamping mechanism |
| DE102012213067A1 (en) * | 2012-07-25 | 2014-01-30 | Robert Bosch Gmbh | Hand-held power tool for eccentric cam grinding machine, has coupling portions that are provided with vibration-damping elastomer formed with polyurethane foam |
| CN203438140U (en) * | 2013-09-05 | 2014-02-19 | 宁波中旺工具有限公司 | Self-cooled electric screwdriver |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12021437B2 (en) | 2019-06-12 | 2024-06-25 | Milwaukee Electric Tool Corporation | Rotary power tool |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160420 |
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| RJ01 | Rejection of invention patent application after publication |