CN205968799U - Changeable electric spanner of function - Google Patents
Changeable electric spanner of function Download PDFInfo
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- CN205968799U CN205968799U CN201620902301.8U CN201620902301U CN205968799U CN 205968799 U CN205968799 U CN 205968799U CN 201620902301 U CN201620902301 U CN 201620902301U CN 205968799 U CN205968799 U CN 205968799U
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Abstract
The utility model relates to a changeable electric spanner of function, including casing, CD -ROM drive motor, gear reduction unit structure, output shaft, impact block, impact spring and working shaft, the utility model discloses still having set up the first adjusting collar of rearward movement under can drive at impact block at the impact block rear side, having set up with first adjusting collar mutual disposition and can limit the second adjusting collar of first adjusting collar rearward movement at first adjusting collar rear, when needs ballistic work ability, kept first adjusting collar and second adjusting collar interval arrangement, impact block is rearward movement and optional and the epaxial passive demeshing of impact portion of work normally, when not needing the ballistic work ability, make closely to offset between first adjusting collar and the second adjusting collar, limit first adjusting collar rearward movement, and then restriction impact block rearward movement, at this moment, the last initiative impact portion of impact block remains the engagement throughout with the epaxial passive impact portion of working for the electricity spanner only has the function of screwing and does not have ballistic work ability, convenient operation.
Description
Technical field
This utility model is related to electric impact wrench technical field, refers specifically to a kind of switchable electric wrench of function.
Background technology
Electric impact wrench by being applied to the installation as output shaft using produced for the hammer being driven in rotation impulsive force
Seat is thus tighten bolt or nut.Existing electric impact wrench generally comprises drive motor, gear reduction and impact dress
Put, this percussion mechanism includes being engaged with active impact block by the active impact block of the output shaft rotation driving of gear reduction
Passive impact block and be connected to passive impact block and the working shaft being rotated by passive impact block, active impact block is in work
Make the load suffered by axle and increase to selectively to be disengaged from passive impact block during particular value and disengage, thus in direction of rotation
On working shaft imposed with intermittent impact.
Application publication number is CN102458772A Chinese invention patent application《Impact wrench》(application number：
CN200980159697.4) disclose a kind of structure, it is provided with core maintaining body, this core maintaining body can make the rotation of secondary hammer
The shaft axis state consistent with the axis of main shaft keeps secondary hammer, prevents core oscillating motion, thus maintaining rotary impact power
While relax axis direction on vibration.But, due to existing similar impact wrench structural impact function and spinfunction
Exist simultaneously, though with during electric wrench all the time there is impact function, this spanner is only suitable for using as nutting, and
Cannot function as electric screwdriver to use, because when electric screwdriver uses, such as have impact function easily to twist screw all the time quick-fried.
Therefore it provides a kind of structure that the impact function presence or absence of electric wrench can be switched over seems particularly must
Will, and in prior art, disclose only the structure that the impulsive torque of electric wrench can be adjusted, and have no and can pull to electronic
The structure that the impact function presence or absence of handss switches over, that is, existing electric wrench cannot function as electric screwdriver use.
Utility model content
Technical problem to be solved in the utility model is the present situation for prior art, provides a kind of structure simply to close
Reason, the switchable electric wrench of easy to operate function, this electric wrench can achieve that the presence or absence to impact function switches over.
This utility model solves the technical scheme that adopted of above-mentioned technical problem：A kind of switchable electric wrench of function,
Including housing；Drive motor, in described housing；Output shaft, is rotated in described housing and by drive motor；Punching
Hit block, can move forward and backward on described output shaft and can rotate with the rotation of output shaft, on the front end face of this impact block
It is provided with active impact portion raised forward；Impact spring, on rear side of described impact block and make this impact block remain to
The trend of front movement；Working shaft, can rotate on front side of described housing, the rear end of this working shaft is provided with can be with described active
Impact portion matches the passive impact portion of shock；It is characterized in that：Also include the first adjusting set, constrain in housing and be only capable of edge
Housing axial slip, under the driving that this first adjusting set is located on rear side of described impact block and can move after impact block stress also backward
Mobile；And second adjusting set, can circumferentially rotate in housing, this second adjusting set is located at described first adjusting set rear
And coordinate with the first adjusting set, can decide whether that limiting the first adjusting set is moved rearwards by by the rotation of the second adjusting set.
As improving further, the rear end of described first adjusting set is formed with multiple circumferentially spaced apart first teeth
Portion, corresponding, the front end of the second adjusting set has the second teeth portion being meshed with the first teeth portion.Preferably, described first teeth portion
Top surface and the second teeth portion top surface to should be shaped to the plane that can abut, plane contact can make the second adjusting set more preferably push up
Live the first adjusting set, prevent both from relatively deflecting in this condition, be formed with for the second teeth portion card between adjacent two first teeth portion
The first teeth groove entering, is formed with the second teeth groove snapping in for the first teeth portion, the side of the first teeth groove between adjacent two second teeth portion
It is formed separately the inclined-plane being gradually extend out from bottom to respective planes with the side of the second teeth groove, this can more ease rotation second
Adjusting set.
Using said structure, make the first teeth portion plane in the first adjusting set and the second adjusting set when rotating the second adjusting set
On the second teeth portion plane when aligning, the first adjusting set cannot be moved rearwards by under second set of restriction overcome difficulties, and then limits
Impact block is moved rearwards by, and the passive impact portion on such working shaft just remained with the active impact portion on impact block and engage
And so that electric wrench is only had and screw function and there is no impact function；Make in the first adjusting set first when rotating the second adjusting set
During the second teeth portion mutual dislocation in teeth portion and the second adjusting set, that is, the first teeth portion corresponds to the gap between the second teeth portion, this
When load suffered by working shaft for the sample impact block increases to particular value, impact block compression shock spring is moved rearwards by so that impacting
Active impact portion on block is disengaged from state with the passive impact portion on working shaft, and impact block promotes the first adjusting set to be moved back by
Dynamic, when the first adjusting set is moved rearwards by, the first teeth portion is engaged with the second teeth portion, and impact block is protected under the elastic force of impact spring
Hold forward movement, so that the electric wrench under this state has impact function.
Preferably, the inner peripheral surface of described housing offers the axial arranged limit sliding chutes along output shaft, corresponding, described
The spacing block set corresponding with limit sliding chutes is had on the periphery wall of the first adjusting set, the length of this spacing block set is less than spacing cunning
The length of groove, above-mentioned spacing block set and limit sliding chutes collectively form permission first adjusting set and move forward and backward and limit the first adjusting set
The limiting section circumferentially rotating.Using said structure, because the length of spacing block set is less than the length of limit sliding chutes, such that it is able to permit
Permitted the first adjusting set to move forward and backward in enclosure interior and limit the first adjusting set and rotate in housing inner circumferential.
In above-mentioned each preferred version, described electric wrench also includes a shifting part, and the bottom setting of this shifting part is oriented
The inserting column of lower extension, corresponding, described second adjusting set has for this inserting column plant spacing hole therein.Using this group
Slider configuration, is easy to the turned position of the second stop collar is adjusted.
Preferably, described shifting part is shaped to the arc shape agreeing with the first adjusting set, the second adjusting set outer peripheral face phase, institute
The top stating shifting part has upwardly extending toggle, and the surface of described housing has the regulation elongated hole exposing for toggle, this tune
The length of section elongated hole is just identical with the length of the second teeth portion or the second teeth groove.Using such structure, if shifting part is located at
The first teeth portion adjusting in elongated hole one end and the first adjusting set can be in and can nibble with the second teeth portion in the second adjusting set just
When closing position, then when shifting part is dialed to the regulation elongated hole other end, the first teeth portion in the first adjusting set just can be with the
The second teeth portion in two adjusting sets offsets, thus preventing the first adjusting set to be moved rearwards by.
Improve further, described electric wrench also includes the second bullet that the first adjusting set can be made to remain forward movement trend
Spring.It is connected due to being provided without close-fitting between the first adjusting set in this utility model and impact block, use ballistic work in electric wrench
During energy, if the motive force that the first adjusting set does not reset forward after being moved rearwards by, then first in continuous impact process
Adjusting set can produce larger noise with the structure multiple impact of in front and back side, also can produce larger abrasion, and adopt above-mentioned knot
Structure, the first adjusting set follows the movement locus of impact block under the driving of second spring all the time closely, can avoid the first adjusting set and punching
Hit the generation of noise between block, reduce abrasion.
In order that each part cooperation closely, the trailing flank of described first adjusting set offers one circumferentially disposed in electric wrench
The first groove, the front end of described second spring is placed in this first groove and is offseted with bottom land, after described second spring
End is offseted with the front end face of gear reduction.Have second recessed around through hole periphery arrangement on the rear end face of described impact block
Groove, the front end of described impact spring is placed in this second groove and is offseted with bottom land, and the rear portion of described output shaft had along week
To the boss of arrangement, the rear end of described impact spring is offseted with the front end face of this boss.
In above-mentioned each scheme, the middle part of described impact block has the through hole of before and after's insertion, and the front end of described output shaft is certainly
Advance through the front end that this through hole is exposed to impact block afterwards, corresponding, the rear end of described working shaft has the front end for output shaft
The jack of insertion.
Compared with prior art, the utility model has the advantage of：This utility model passes through to arrange the knot of an advantages of simple
Structure and make electric wrench that the presence or absence of impact function can be switched over, specifically, this utility model is arranged on rear side of impact block
The first adjusting set being moved rearwards by under the driving of impact block, is provided with and the first regulation at the first adjusting set rear simultaneously
Set is positioned opposite and can limit the second adjusting set that the first adjusting set is moved rearwards by, when electric wrench needs using impact function,
When using as electric wrench nutting, keep the first adjusting set and the second adjusting set arranged for interval, impact block can normally backward
Move thus selectable and on working shaft passive impact portion is disengaged from；When not needing using impact function, i.e. conduct
When electric screwdriver the turn of the screw uses, adjust the position between the first adjusting set and the second adjusting set, so that the two is closely offseted, limit
Make the first adjusting set to be moved rearwards by, and then limit impact block and be moved rearwards by, now, the active impact portion on impact block and working shaft
On passive impact portion remain contact condition and cannot depart from so that electric wrench only has and screws function and do not have impact
Function, the so end in working shaft plug knife work head of tightening up a screw and just can use as electric screwdriver, and this utility model is grasped
Facilitate, be that user provides great convenience, serve the effect of one-object-many-purposes.
Brief description
Fig. 1 is the structural representation of this utility model embodiment；
Fig. 2 does not possess the status architecture schematic diagram of impact function (hiding housing) for this utility model embodiment；
Fig. 3 possesses the status architecture schematic diagram of impact function (hiding housing) for this utility model embodiment；
Fig. 4 is the sectional view of Fig. 1；
Fig. 5 is the first adjusting set, the second adjusting set, shifting part fit structure schematic diagram in this utility model embodiment；
Fig. 6 is the structural representation of the first adjusting set in Fig. 5；
Fig. 7 is the structural representation of the second adjusting set in Fig. 5.
Specific embodiment
Below in conjunction with accompanying drawing embodiment, this utility model is described in further detail.
As shown in Fig. 1～7, the switchable electric wrench of the present embodiment function includes housing 1, drive motor 2, gear reduction unit
Structure 3, output shaft 4, impact block 5, impact spring 6, working shaft 7, the first adjusting set 8, the second adjusting set 9, shifting part 10 and second
Spring 11.
The drive motor 2 of the present embodiment, gear reduction 3, output shaft 4, impact block 5, impact spring 6 are all located at housing
In 1, the drive motor 2 of the present embodiment is a motor, and the input of this motor is connected with power supply, the outfan of this motor and gear
The input of reducing gear 3 connects, and the outfan of gear reduction 3 is connected with the input of output shaft 4.Before impact block 5 energy
Move afterwards on output shaft 4 and can rotate with the rotation of output shaft 4, the front end face of this impact block 5 is provided with forward
Raised active impact portion 51；Working shaft 7 can rotate on front side of housing 1, the rear end of this working shaft 7 is provided with can be with impact
Active impact portion 51 on block 5 matches the passive impact portion 71 of shock；Specifically, the middle part of impact block 5 has before and after's insertion
Through hole 52, the front end of output shaft 4 is exposed to the front end of impact block 5, corresponding, working shaft 7 from back to front through this through hole 52
Rear end have for output shaft 4 front end insertion jack 72.Impact spring 6 located at impact block 5 rear side and makes this impact block 5 begin
Keep the trend moving forward eventually, the rear end face of impact block 5 has the second groove 53 around through hole 52 periphery arrangement, impact
The front end of spring 6 is placed in this second groove 53 and is offseted with bottom land, and the rear portion of output shaft 4 has boss circumferentially
41, the rear end of impact spring 6 is offseted with the front end face of this boss 41.
In the present embodiment, the first adjusting set 8 constrains in housing 1 and is only capable of along housing axial slip, this first regulation
Also it is moved rearwards by under the driving that set 8 is located on rear side of impact block 5 and can move after impact block 5 stress；Second adjusting set 9 can circumference turn
Dynamic in housing 1, this second adjusting set 9 is located at the first adjusting set 8 rear and is coordinated, by second with the first adjusting set 8
The rotation of adjusting set 9 can decide whether that limiting the first adjusting set 8 is moved rearwards by.Specifically, the rear end of the first adjusting set 8 is formed with
Spaced apart first teeth portion 81, corresponding, the front end of the second adjusting set 9 has the second tooth being meshed with the first teeth portion 81
Portion 91.The top surface 911 of the top surface 811 of the first teeth portion 81 and the second teeth portion 91 is to should be shaped to the plane that can abut, adjacent
It is formed with the first teeth groove 812 snapping in for the second teeth portion 91 between two first teeth portion 81, formed between adjacent two second teeth portion 91
There are the second teeth groove 912 snapping in for the first teeth portion 81,913 points of the side of the side 813 of the first teeth groove 812 and the second teeth groove 912
It is not configured to the inclined-plane gradually extending out from bottom to corresponding top surface 811,911.
Permission the first adjusting set 8 is provided with housing 1 inwall move forward and backward and limit the limit that the first adjusting set 8 circumferentially rotates
Position portion, to prevent electric wrench working condition under non-artificial mode of operation from changing.Specifically, the inner peripheral surface of housing 1 opens up
There are the axial arranged limit sliding chutes 12 along output shaft 4, corresponding, the periphery wall of the first adjusting set 8 has and limit sliding chutes
12 corresponding spacing block sets 82, the length of this spacing block set 82 is less than the length of limit sliding chutes 12, above-mentioned spacing block set 82 with
Limit sliding chutes 12 collectively form limiting section, because the length of spacing block set 82 is less than the length of limit sliding chutes 12, such that it is able to permit
Permitted the first adjusting set 8 to move forward and backward inside housing 1 and limit the first adjusting set 8 and rotate in housing 1 inner circumferential.
The shifting part 10 of the present embodiment is shaped to the arc agreeing with the first adjusting set 8, the second adjusting set 9 outer peripheral face phase
Shape, the bottom of shifting part 10 is provided with the inserting column 101 extending downwardly, corresponding, and the second adjusting set 9 has for this inserting column
101 plant spacing holes 92 therein；The top of shifting part 10 has upwardly extending toggle 102, and the surface of housing 1 has for dialling
The regulation elongated hole 13 that button exposes, the length of this regulation elongated hole 13 is just identical with the length of the second teeth portion 91 or the second teeth groove 912,
Just can be with the second adjusting set if shifting part 10 is located at the first teeth portion 81 adjusting in elongated hole 13 one end and the first adjusting set 8
When the second teeth portion 91 on 9 is in the energy position of engagement, then when shifting part 10 is dialed to regulation elongated hole 13 other end, the first tune
On section set 8, the top surface 811 of the first teeth portion 81 just can be offseted with the top surface 911 of the second teeth portion 91 in the second adjusting set 9, thus anti-
Only the first adjusting set 8 is moved rearwards by.
As shown in figure 4, second spring 11 can make the first adjusting set 8 remain the trend of forward movement.Specifically, first
One the first circumferentially disposed groove 83 offered on the trailing flank of adjusting set 8, it is first recessed that the front end of second spring 11 is placed in this
Offset in groove 83 and with bottom land, the rear end of second spring 11 is offseted with the front end face of gear reduction 3.Due to the present embodiment
It is provided without close-fitting between first adjusting set 8 and impact block 5 to be connected, when electric wrench uses impact function, if the first adjusting set 8
The motive force not resetted forward after being moved rearwards by, then the first adjusting set 8 can be with front and back side in continuous impact process
Structure multiple impact produces larger noise, also can produce larger abrasion, and adopt said structure, and the first adjusting set 8 is the
All the time follow the movement locus of impact block 5 under the driving of two springs 11 closely, noise between the first adjusting set 8 and impact block 5 can be avoided
Generation, reduce abrasion.
Using the electric wrench of the present embodiment, when electric wrench does not need using impact function, twist as electric screwdriver
When screw uses, promote shifting part 10 so that the second adjusting set 9 is rotated, make the top of the first teeth portion 81 in the first adjusting set 8
The top surface 911 of the second teeth portion 91 in face 811 and the second adjusting set 9 aligns, and now, the first adjusting set 8 overcomes difficulties 9 at second set
Restriction under cannot be moved rearwards by, and then limit impact block 5 and be moved rearwards by, the passive impact portion 71 on such working shaft 7 is just
Remain with the active impact portion 51 on impact block 5 and contact and so that electric wrench is only had and screw function and there is no ballistic work
Can, so the end in working shaft plugs knife work head of tightening up a screw and just can use as electric screwdriver；When electric wrench needs to adopt
When using impact function, when using as electric wrench nutting, shifting part 10 is promoted to make the first teeth portion 81 in the first adjusting set 8
During with the second teeth portion 91 mutual dislocation in the second adjusting set 9, that is, the first teeth portion 81 corresponds to the gap between the second teeth portion 91,
When so load suffered by working shaft 7 for the impact block 5 increases to particular value, impact block 5 compression shock spring 6 be moved rearwards by thus
Make passive impact portion 71 separating contacting state on active impact portion 51 on impact block 5 and working shaft 7, impact block 5 promotes the
One adjusting set 8 is moved rearwards by, and when the first adjusting set 8 is moved rearwards by, the first teeth portion 82 is engaged with the second teeth portion 91, and in impact bullet
Under the elastic force of spring 6, impact block 5 keeps moving forward, so that the electric wrench under this state has impact function again.
Claims (10)
1. the switchable electric wrench of a kind of function, including
Housing (1)；
Drive motor (2), in described housing (1)；
Output shaft (4), is rotated in described housing (1) and by drive motor (2)；
Impact block (5), can move forward and backward above and can rotate, this punching with the rotation of output shaft (4) located at described output shaft (4)
Active impact portion (51) raised forward is provided with the front end face hitting block (5)；
Impact spring (6), on rear side of described impact block (5) and make this impact block (5) remain the trend of forward movement；
Working shaft (7), can rotate on front side of described housing (1), the rear end of this working shaft (7) is provided with can be with described active
Impact portion (51) matches the passive impact portion (71) of shock；
It is characterized in that：Also include
First adjusting set (8), constrains in housing (1) and is only capable of along housing axial slip, and this first adjusting set (8) is located at described
Also it is moved rearwards by rear side of impact block (5) and under the driving that can move after impact block (5) stress；And
Second adjusting set (9), can circumferentially rotate in housing (1), this second adjusting set (9) be located at described first adjusting set
(8) rear and with the first adjusting set (8) cooperation, can decide whether to limit the first adjusting set by the rotation of the second adjusting set (9)
(8) it is moved rearwards by.
2. the switchable electric wrench of function according to claim 1 it is characterised in that：After described first adjusting set (8)
End is formed with multiple circumferentially spaced apart first teeth portion (81), and corresponding, the front end of described second adjusting set (9) has energy
The second teeth portion (91) being meshed with the first teeth portion (81).
3. the switchable electric wrench of function according to claim 2 it is characterised in that：The top surface of described first teeth portion (81)
(811) and the second teeth portion (91) top surface (911) to should be shaped to the plane that can abut, adjacent two first teeth portion (81) it
Between be formed with the first teeth groove (812) snapping in for the second teeth portion (91), be formed between adjacent two second teeth portion (91) and supply first
The second teeth groove (912) that teeth portion (81) snaps in, the side (813) of described first teeth groove (812) and the side of the second teeth groove (912)
(913) it is formed separately the inclined-plane being gradually extend out from bottom to corresponding top surface.
4. the switchable electric wrench of function according to claim 1 it is characterised in that：The inner peripheral surface of described housing (1) is opened
It is provided with the axial arranged limit sliding chutes (12) along output shaft (4), corresponding, the periphery wall of described first adjusting set (8) has
There is the spacing block set (82) corresponding with limit sliding chutes (12), the length of this spacing block set (82) is less than the length of limit sliding chutes (12)
Degree, above-mentioned spacing block set (82) and limit sliding chutes (12) collectively form permission the first adjusting set (8) and move forward and backward and limit first
The limiting section that adjusting set circumferentially rotates.
5. the switchable electric wrench of function according to claim 1 it is characterised in that：Also include a shifting part (10), should
The bottom of shifting part (10) is provided with the inserting column (101) extending downwardly, corresponding, and described second adjusting set (9) has confession
This inserting column (101) plant spacing hole therein (92).
6. the switchable electric wrench of function according to claim 5 it is characterised in that：Described shifting part (10) be shaped to
The arc shape that first adjusting set (8), the second adjusting set (9) outer peripheral face phase are agreed with, the top of described shifting part (10) has upwards
The toggle (102) extending, the surface of described housing (1) has the regulation elongated hole (13) exposing for toggle (102), this regulation elongated hole
(13) length is just identical with the length of the second teeth portion (91) or the second teeth groove (912).
7. the switchable electric wrench of function according to claim 1 it is characterised in that：Also include making the first adjusting set
(8) remain the support spring (11) of forward movement trend.
8. the switchable electric wrench of function according to claim 7 it is characterised in that：After described first adjusting set (8)
One circumferentially disposed the first groove (83) is offered on side, the front end of described support spring (11) is placed in this first groove
(83) offset in and with bottom land, the rear end of described support spring (11) and the front end face of gear reduction (3) offset.
9. the switchable electric wrench of the function according to any claim in claim 1～8 it is characterised in that：Described
The middle part of impact block (5) has the through hole (52) of before and after's insertion, and the front end of described output shaft (4) passes through this through hole from back to front
(52) it is exposed to the front end of impact block (5), corresponding, the rear end of described working shaft (7) has the front end insertion for output shaft (4)
Jack (72).
10. the switchable electric wrench of function according to claim 9 it is characterised in that：The rear end face of described impact block (5)
On have the second groove (53) around through hole (52) periphery arrangement, it is second recessed that the front end of described impact spring (6) is placed in this
Offset in groove (53) and with bottom land, the rear portion of described output shaft (4) has boss (41) circumferentially, described impact spring
(6) rear end is offseted with the front end face of this boss (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620902301.8U CN205968799U (en) | 2016-08-17 | 2016-08-17 | Changeable electric spanner of function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620902301.8U CN205968799U (en) | 2016-08-17 | 2016-08-17 | Changeable electric spanner of function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205968799U true CN205968799U (en) | 2017-02-22 |
Family
ID=58031626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620902301.8U Active CN205968799U (en) | 2016-08-17 | 2016-08-17 | Changeable electric spanner of function |
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| Country | Link |
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| CN (1) | CN205968799U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106166723A (en) * | 2016-08-17 | 2016-11-30 | 宁波良业电器有限公司 | The switchable electric wrench of function |
| CN111000624A (en) * | 2019-12-21 | 2020-04-14 | 杨盈 | Can switch electronic pedicure ware of bistrique |
-
2016
- 2016-08-17 CN CN201620902301.8U patent/CN205968799U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106166723A (en) * | 2016-08-17 | 2016-11-30 | 宁波良业电器有限公司 | The switchable electric wrench of function |
| CN111000624A (en) * | 2019-12-21 | 2020-04-14 | 杨盈 | Can switch electronic pedicure ware of bistrique |
| CN111000624B (en) * | 2019-12-21 | 2020-12-25 | 兴化市鑫翔机械有限公司 | Can switch electronic pedicure ware of bistrique |
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| GR01 | Patent grant |