CN209717602U - Percussion tool - Google Patents
Percussion tool Download PDFInfo
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- CN209717602U CN209717602U CN201920108864.3U CN201920108864U CN209717602U CN 209717602 U CN209717602 U CN 209717602U CN 201920108864 U CN201920108864 U CN 201920108864U CN 209717602 U CN209717602 U CN 209717602U
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Abstract
The utility model discloses a kind of percussion tools, comprising: shell；Motor is contained in shell, and motor includes the rotor rotated using pivot center as axis；Battery, for powering for motor, battery connects or is contained in shell；Output shaft is motor driven；Percussion tool further include: transmission mechanism, for being transferred to output shaft after the rotation of motor is slowed down；Beater mechanism, for applying impact force to output shaft, beater mechanism connects transmission mechanism and output shaft；Beater mechanism includes being transmitted the hammer of mechanism driving and merging the hammer anvil hit by it with hammer matching, and hammer anvil drives output shaft rotation；Beater mechanism further includes the elastic component being set between hammer and transmission mechanism, and elastic component can shorten between hammer and transmission mechanism or extend that hammer is driven to generate along the nyctitropic displacement of its shape.Work efficiency is high for the percussion tool of the utility model, stable, highly reliable.
Description
Technical field
The utility model relates to a kind of percussion tools.
Background technique
Percussion tool currently on the market, such as the unloaded output of impact screwdriver, impact wrench, impact drill percussion tool
Revolving speed and highest frequency of impact are lower, and highest zero load exports revolving speed and there was only about 3,000 revs/min, and highest frequency of impact can only achieve
About 4,000 beats/min, so that the working efficiency of percussion tool is not high.Even if having minority by improving motor speed to improve zero load
The percussion tool for exporting revolving speed and/or maximum impact frequency, there is also the revolving speeds of frequency of impact when load and beater mechanism not
The problems such as matching is so as to cause machine vibration, gear-box inner body fatigue damage or failure, although the work of short-term inner machine
Efficiency increases, but brings fluctuation of service, the problems such as machine reliability is low.
Utility model content
To solve the deficiencies in the prior art, the purpose of this utility model is to provide it is a kind of work efficiency is high, it is stable,
The percussion tool of high reliablity.
In order to achieve the above objectives, the utility model adopts the following technical solutions:
A kind of percussion tool, comprising: shell；Motor is contained in shell, and motor includes rotating by axis of pivot center
Rotor；Battery, for powering for motor, battery connects or is contained in shell；Output shaft is motor driven；Percussion tool also wraps
It includes: transmission mechanism, for being transferred to output shaft after the rotation of motor is slowed down；Beater mechanism, for applying to output shaft
Impact force, beater mechanism connect transmission mechanism and output shaft；The ratio of the reduction ratio of the revolving speed and transmission mechanism of motor be greater than etc.
In 4000 rpm and it is less than or equal to 7000 rpm, alternatively, the maximum impact frequency of percussion tool is more than or equal to 4350 ipm and small
In equal to 7000 ipm；Beater mechanism includes being transmitted the hammer of mechanism driving and merging the hammer anvil hit by it, hammer with hammer matching
Anvil drives output shaft rotation；Beater mechanism further includes the elastic component being set between hammer and transmission mechanism, and elastic component can hammered into shape
Shorten between transmission mechanism or extend that hammer is driven to generate along the nyctitropic displacement of its shape, the coefficient of elasticity K of elastic component is big
In equal to 35 N/mm and less than or equal to 70 N/mm.
Further, the coefficient of elasticity K of elastic component is more than or equal to 45 N/mm and is less than or equal to 60 N/mm.
Further, the ratio of the reduction ratio of the revolving speed and transmission mechanism of motor is more than or equal to 4200 rpm and is less than or equal to
The maximum impact frequency of 6500 rpm and/or percussion tool is more than or equal to 4500 ipm and is less than or equal to 6500 ipm.
Further, the ratio of the reduction ratio of the revolving speed and transmission mechanism of motor is more than or equal to 4000 rpm and is less than or equal to
7000 rpm, and the maximum impact frequency of percussion tool is more than or equal to 4350 ipm and is less than or equal to 7000 ipm.
Further, transmission mechanism includes transmission shaft and spin, and spin is set between transmission shaft and hammer, and transmission shaft passes through
Spin driving hammer rotation；The alley mobile for spin, alley about forming V-shape, and ball are provided between transmission shaft and the radial direction of hammer
The angle of the track in road is more than or equal to 100 degree and is less than or equal to 130 degree.
Further, percussion tool further includes that the torsion for manually adjusting the outputting torsion of percussion tool for user is adjusted
Mechanism, torque force adjusting mechanism are connected to motor and are provided with multiple regulation stalls；Alternatively, percussion tool further includes automatic adjusument
The torque force adjusting mechanism of the outputting torsion of percussion tool, torque force adjusting mechanism include the motor for constituting electrical connection or signal connection
Controller and sensor module, sensor module include current sensor or/and torque sensor, electric machine controller and motor structure
At electrical connection.
Further, the ratio of the outputting torsion of the rotary inertia and percussion tool of hammer is more than or equal to 1 × 10-4 kg·mm/
N and be less than or equal to 2 × 10-4 kg·mm/N。
Further, the ratio of the outputting torsion of the rotary inertia and percussion tool of hammer is equal to 1.2 × 10-4 kg·mm/N。
Further, the revolving speed of motor is more than or equal to 12000 rpm and is less than or equal to 28000 rpm；Transmission mechanism subtracts
Speed ratio is more than or equal to 3 and is less than or equal to 7.
Further, motor is inner rotor motor；Motor includes stator, and stator includes stack of laminations, and stack of laminations is formed with court
The multiple magnetic poles radially extended to pivot center；The ratio of the outputting torsion of the folded length and percussion tool of stack of laminations is more than or equal to 5
×10-5 N and be less than or equal to 2 × 10-4 N。
Further, the ratio of the outputting torsion of the folded length and percussion tool of stack of laminations is equal to 1 × 10-4 N。
Further, percussion tool is impact screwdriver, impact drill, impact wrench or electric hammer.
The utility model has the beneficial effect that the utility model by improving the unloaded output revolving speed or most of percussion tool
HI high impact frequency improves the working efficiency of machine, at the same the structure by optimizing beater mechanism improve machine stability and
Reliability.
Detailed description of the invention
Fig. 1 is the plan view of the percussion tool of the first embodiment of the utility model；
Fig. 2 is the plan view of the part-structure of the percussion tool in Fig. 1；
Fig. 3 is the cross-sectional view of the part-structure of the percussion tool in Fig. 1；
Fig. 4 is the perspective view of the part-structure of the percussion tool in Fig. 1；
Fig. 5 is the explosive view of the part-structure of the percussion tool in Fig. 1；
Fig. 6 is the cross-sectional view of the part-structure of the percussion tool in Fig. 1；
Fig. 7 is the plan view of the part-structure of the percussion tool in Fig. 1.
Specific embodiment
The schematic diagram of the percussion tool 100 of the first embodiment of Fig. 1 the utility model, wherein percussion tool 100 in Fig. 1
For impact screwdriver, in other embodiments, percussion tool 100 is also possible to the punching such as impact wrench, impact drill, electric hammer, electric pick
Tool is hit, is not limited thereto.In fact, as long as these tools include the essentiality content described below in the utility model
Belong to the range that the utility model is protected.For convenience of description, front-rear direction as shown in Figure 1 is set in the present embodiment.
As shown in Figure 1 to Figure 3, percussion tool 100 includes shell 11, motor 12, battery 13, wherein shell 11 surrounds shape
At the accommodation space having for accommodating motor 12, motor 12 includes stator and rotor, and rotor is axis rotation with pivot center 101,
Motor 12 is inner rotor motor 12 in the present embodiment, and rotor includes 12 axis of motor；Battery 13 is the power supply of motor 12, and is connected to shell
Body 11 is contained in shell 11.In the present embodiment, the installation of battery 13 to 11 lower part of shell, and constituted detachably with shell 11
Connection, is conveniently replaceable and repairs.Percussion tool 100 further includes the output shaft 15 and transmission mechanism 14 driven by motor 12, here
Driving can be by transmission mechanism 14 indirectly driving be also possible to directly drive, in the present embodiment, 12 rotor of motor turn
Dynamic that output shaft 15 is transferred to after the deceleration of transmission mechanism 14, motor 12 includes electric motor fan 121.
In the present embodiment, transmission mechanism 14 includes a gear-box, contains planetary gear reduction system in gear-box,
Planetary gear reduction system is a primary speed-down system, including single-row single-stage planetary gear, specifically by by sun gear, planet tooth
Wheel carrier 142, planetary gear 143 and gear ring 144 form.Gear ring is fixedly installed relative to gear-box, and planet carrier 142 includes cylindrical
Pedestal and the circumferential evenly spaced multiple planetary gear fulcrums (figure is not marked) being set on base end face, planetary gear fulcrum is from pedestal
Rear end extends, and a planetary gear 143 is installed on each planetary gear fulcrum, and 12 axis of motor of motor 12 extends in gear-box, with
It is contained in planetary gear 143 therein to engage, specifically, 12 axis of motor drives sun gear rotation.Certainly, the present embodiment middle gear passes
Dynamic specific structure is without being limited thereto, as long as can be realized preset transmission ratio.
Percussion tool 100 further includes beater mechanism 16, and beater mechanism 16 is set between transmission mechanism 14 and output shaft 15
And transmission mechanism 14 and output shaft 15 are connected, for applying impact force to output shaft 15.Specifically, beater mechanism 16 includes being passed
The hammer 161 and merge the hammer anvil 162 hit by it with the matching of hammer 161 that motivation structure 14 drives, hammer anvil 162 drives 15 turns of output shaft
It is dynamic.Radial symmetric is convexly equipped with a pair of first end tooth on the front end face of hammer 161, and the front end for hammering 161 into shape is additionally provided with hammer anvil 162, hammer anvil 162
The protrusion of radial symmetric on 161 opposite rear end faces of hammer is provided with a pair of second end tooth.Output shaft 15 stretches out gear-box front end,
It is connected to hammer anvil 162, it is to be understood that hammer anvil 162 and output shaft 15 can be independence that is integrally formed or being formed separately
Part.15 front end of output shaft is equipped with container, and corresponding work head, such as screwdriver, brill can be accommodated when realizing different function
Head, extension bar etc..Beater mechanism 16 further includes the elastic component 163 between hammer 161 and transmission mechanism 14, specifically, elastic component
163 are pressure spring and are set between hammer 161 and planet carrier.Beater mechanism 16 further includes being located at hammer 161 and 141 radial direction of transmission shaft
Between spin 164 and accommodate the alley 165 of spin 164, alley 165 is substantially v-shaped in the utility model.
The principle of the realization impact of percussion tool 100 in the utility model embodiment, the motor of motor 12 is explained in detail below
The rotation of 12 axis, 12 axis of motor drives sun gear around planetary gear fulcrum rotation, while planetary gear is along the cricoid internal tooth of ring gear
It creeps, the pivot center 101 around 12 axis of motor revolves.The revolution of planetary gear drives planet carrier rotation, and by rotation be transmitted to
Planet carrier constitute transmission connection or with the integrally formed transmission shaft 141 of planet carrier, hammer 161 be respectively set on transmission shaft 141
There is the V-shaped groove being recessed inwardly that alley 165 is collectively formed, spin 164 is set between hammer 161 and transmission shaft 141 and is embedded in ball
Road 165, so that 161 rotation of hammer can be driven by spin 164 in transmission shaft 141, hammer 161 drives hammer by the cooperation of hammer anvil 162
Further driving output shaft 15 rotates the rotation of anvil 162.When percussion tool 100 is unloaded, beater mechanism 16 does not impact, punching
It hits mechanism 16 and plays transmission effect, the rotation of motor 12 is transferred to output shaft 15.When percussion tool 100 is applied load,
The rotation of output shaft 15 is obstructed, of different sizes due to load, output shaft 15 may revolving speed reduction may also stop operating completely.
When output shaft 15 stops operating completely, hammer anvil 162 also stops operating, since the limit of 162 pairs of hammer anvil hammers 161 in the circumferential is made
It is also stopped operating with hammer 161, but transmission shaft 141 continues to rotate, this makes spin 164 be squeezed along the shifting of 165 track of alley
It is dynamic, thus drive hammer 161 generate squeeze elastic component 163 simultaneously along axial displacement until hammer anvil 162 and hammer into shape it is 161 completely disengaged,
The hammer 161 of the driving of transmission shaft 141 at this time with certain rotational speed, elastic component 163 along axial rebound, this hour hammer 161 and hammer anvil 162 it
Between relative rotation speed be hammer into shape 161 revolving speed, when hammer 161, which is turned to, to be contacted with hammer anvil 162, will to hammer anvil 162 apply one
A impact force, under the action of this impact force, output shaft 15 overcomes load to continue to rotate certain angle, rear output shaft 15 again
Stalling repeats above procedure, since frequency of impact is sufficiently large, will generate a relatively continuous impact force to output shaft 15,
So that operation element continues working.Specifically, 141 per revolution of transmission shaft is hammered 161 pairs of applications of output shaft 15 into shape and is rushed twice
It hits, and frequency of impact at this time is maximum impact frequency.
When underloading is enough big, output shaft 15 is not stalled and impact process and load when only it reports reduction are sufficiently large
When it is roughly the same, specific implementation principle is identical, unlike at this time output shaft 15 still carried out with given pace it is same with transmission shaft 141
To rotation, there is between hammer anvil 162 and hammer 161 smaller relative rotation speed, at this time transmission shaft when this springs back elastic component 163
141 per revolutions are hammered the mean drop number that 161 pairs of output shafts 15 apply into shape and are less than or equal to twice, and frequency of impact at this time is less than
Equal to maximum impact frequency.
Process described above is impact process when frequency of impact is matched with the revolving speed of beater mechanism 16.But to improve
The working efficiency of percussion tool 100, it would be desirable to improve maximum when exporting revolving speed and/or load when 100 zero load of percussion tool
Frequency of impact.Specifically, the revolving speed of motor 12 and the ratio of the reduction ratio of transmission mechanism 14 are more than or equal in the utility model
4000 rpm and the maximum impact frequency for being less than or equal to 7000 rpm and/or percussion tool 100 are more than or equal to 4350 ipm and small
In being equal to 7000 ipm, further, the ratio of the reduction ratio of the revolving speed and transmission mechanism 14 of motor 12 is more than or equal to 4200
Rpm and the maximum impact frequency for being less than or equal to 6500 rpm and/or percussion tool 100 are more than or equal to 4500 ipm and are less than etc.
In 6500 ipm.Specifically embodiment is as follows are as follows: the revolving speed of motor 12 is more than or equal to 12000 rpm and is less than or equal to 28000
rpm；The reduction ratio of transmission mechanism 14 is more than or equal to 3 and is less than or equal to 7.Specifically, in the present embodiment, using 12 revolving speed of motor
Reduction ratio for 2000 rpm and transmission mechanism 14 is the ratio etc. of the revolving speed of 5 realization motors 12 Yu the reduction ratio of transmission mechanism 14
In 4000 rpm, to improve the unloaded output revolving speed of percussion tool 100.
When the unloaded output revolving speed of percussion tool 100 improves, the revolving speed of beater mechanism 16 is also with raising, entire driver
If structure 14 and beater mechanism 16 still continue to use the structure when slow-speed of revolution, it is just likely to occur the revolving speed of frequency of impact Yu beater mechanism 16
The problems such as unmatched problem further results in shock point dystopy, and frequency of impact reduces.Specifically, shock point dystopy is possible
Hammer 161 cannot be completely attached to hammer anvil 162 in impact, and hammer 161 may be hit to part hammer anvil 162, will so cause to rush
16 fatigue damage of mechanism or failure are hit, while can also cause the vibration of machine, causes user's use feeling bad；Frequency of impact reduces
It is then since hammer 161 and the relative rotation speed reduction of hammer anvil 162 cause.
In view of the above problems, the structure of beater mechanism 16 is optimized in the utility model, so that frequency of impact and punching
The revolving speed for hitting mechanism 16 can be matched preferably, to avoid problem above.Specifically, by analysis with experiment, it has been found that
Influence coefficient of elasticity, the alley 165 of the main flexible part 163 of the matching degree between frequency of impact and the revolving speed of beater mechanism 16
The angle of track and hammer into shape 161 rotary inertia, can coefficient of elasticity, the angle of 165 track of alley by adjusting elastic component 163
And the rotary inertia of hammer 161 matches frequency of impact preferably with the revolving speed of beater mechanism 16.Specifically, in the present embodiment
The coefficient of elasticity K of adjustment elastic component 163 reduces elastic component 163 along the axial rebound time, so that the revolving speed with increase carries out
Matching, specifically, coefficient of elasticity K are more than or equal to 35 N/mm and are less than or equal to 70 N/mm, and further, coefficient of elasticity K is greater than
Equal to 45 N/mm and it is less than or equal to 60 N/mm, in the present embodiment, coefficient of elasticity K is 45 N/mm；As a kind of selectable
Embodiment is adjusted the angle [alpha] of alley 165, as shown in fig. 7, the angle [alpha] of the track of alley 165 is more than or equal to 100 degree
And it is less than or equal to 130 degree；As another selectable embodiment, the rotary inertia of hammer 161 is finely tuned, this field
Technical staff it is to be appreciated that percussion tool 100 for different outputting torsions, hammer into shape 161 size and mass difference it is larger, therefore
The rotary inertia range of hammer 161 is larger, here, we analyze by many experiments, will hammer 161 rotary inertia and percussion tool into shape
The ratio of 100 outputting torsion is more than or equal to 1 × 10-4 Kgmm/N and be less than or equal to 2 × 10-4 kg·mm/N.It needs to illustrate
, the embodiment that three of the above improves the matching degree between frequency of impact and the revolving speed of beater mechanism 16 can use simultaneously
Can also only with one or secondly.In the present embodiment, the output for hammering 161 rotary inertia and the percussion tool 100 into shape is turned round
The ratio of power is equal to 1.2 × 10-4 kg·mm/N。
It should be noted that the adjustment of the coefficient of elasticity K to elastic component 163, it not only can be when there are relatively large load
So that elastic component 163 reduces to be conducive to match frequency of impact and revolving speed along the axial rebound time, when there is smaller load,
Be conducive to improve the stability of percussion tool 100.Specifically, when one smaller load effect in output shaft 15, spin 164 by
Generate the trend moved along alley 165 to certain extruding force just can generate if the coefficient of elasticity K of elastic component 163 is larger at this time
Lesser axial displacement and hammer 161 is not disengaged with hammer anvil 162 and hammer is made 161 to generate lesser axis relative to hammer anvil 162
It is improved to displacement so that percussion tool 100 does not generate the output rotation impacted while can be stable under the load effect
The reliability of percussion tool 100.
The stator of motor 12 includes stack of laminations, and stack of laminations is formed with the multiple magnetic poles radially extended towards pivot center 101.
Since the frequency of impact of percussion tool 100 is higher, to further increase Stability and dependability when percussion tool 100 is run,
The structure of motor 12 is optimized in we, is presented as the folded length for lengthening stack of laminations in the present embodiment, but different outputs are turned round
12 stack of laminations of motor of the percussion tool 100 of power folds that long difference is larger, we are obtained by analysis for specific output torsion
The suitable of percussion tool 100 fold long range, specifically, the ratio of the outputting torsion of the folded length and percussion tool 100 of stack of laminations
Value is more than or equal to 5 × 10-5 N and be less than or equal to 2 × 10-4 N, in the present embodiment, the folded length of stack of laminations is defeated with percussion tool 100
The ratio of torsion is equal to 1 × 10 out-4 N。
Percussion tool 100 further includes that the torsion for manually adjusting the outputting torsion of percussion tool 100 for user adjusts machine
Structure, torque force adjusting mechanism are connected to motor 12 and are provided with multiple regulation stalls, and torque force adjusting mechanism includes for user's operation
Operating parts and the adjuster being electrically connected with the composition of motor 12, operating parts are connected to adjuster, user's operation operating parts and then touching
Send out prescription dosage regulating device movement；As a kind of selectable embodiment, percussion tool 100 further includes automatic adjusument percussion tool 100
Outputting torsion torque force adjusting mechanism, torque force adjusting mechanism includes 12 controller of motor and sensor module, and motor 12 controls
Device and sensor module constitute electrical connection or signal connects, and sensor module includes current sensor or/and torque sensor,
12 controller of motor is electrically connected with the composition of motor 12.
The basic principles and main features and advantage of the utility model have been shown and described above.The technical staff of the industry
It should be appreciated that above-described embodiment does not limit the utility model in any form, it is all by the way of equivalent substitution or equivalent transformation
Technical solution obtained, all falls in the protection scope of the utility model.
Claims (12)
1. a kind of percussion tool, comprising:
Shell；
Motor is contained in the shell, and the motor includes the rotor rotated using pivot center as axis；
Battery, for powering for the motor, the battery connects or is contained in the shell；
Output shaft, by the motor driven；
It is characterized by:
The percussion tool further include:
Transmission mechanism, for being transferred to the output shaft after the rotation of the motor is slowed down；
Beater mechanism, for applying impact force to the output shaft, the beater mechanism connects the transmission mechanism and described defeated
Shaft；The ratio of the reduction ratio of the revolving speed of the motor and the transmission mechanism is more than or equal to 4000 rpm and is less than or equal to 7000
Rpm, alternatively, the maximum impact frequency of the percussion tool is more than or equal to 4350 ipm and is less than or equal to 7000 ipm；
The beater mechanism includes matching the hammer anvil merged by its strike by hammer that the transmission mechanism drives and with the hammer, institute
It states hammer anvil and drives the output shaft rotation；The beater mechanism further includes the bullet being set between the hammer and the transmission mechanism
Property part, the elastic component can shorten between the hammer and the transmission mechanism or elongation is to drive hammer generation along it
The nyctitropic displacement of shape, the coefficient of elasticity K of the elastic component are more than or equal to 35 N/mm and are less than or equal to 70 N/mm.
2. percussion tool according to claim 1, it is characterised in that:
The coefficient of elasticity K of the elastic component is more than or equal to 45 N/mm and is less than or equal to 60 N/mm.
3. percussion tool according to claim 1, it is characterised in that:
The ratio of the reduction ratio of the revolving speed of the motor and the transmission mechanism is more than or equal to 4200 rpm and is less than or equal to 6500
The maximum impact frequency of rpm or the percussion tool is more than or equal to 4500 ipm and is less than or equal to 6500 ipm.
4. percussion tool according to claim 1, it is characterised in that:
The ratio of the reduction ratio of the revolving speed of the motor and the transmission mechanism is more than or equal to 4000 rpm and is less than or equal to 7000
Rpm, and the maximum impact frequency of the percussion tool is more than or equal to 4350 ipm and is less than or equal to 7000 ipm.
5. percussion tool according to claim 1, it is characterised in that:
The transmission mechanism includes transmission shaft and spin, and the spin is set between the transmission shaft and the hammer, the biography
Moving axis drives the hammer to rotate by the spin；It is provided between the transmission shaft and the radial direction of the hammer and is moved for the spin
Dynamic alley, the alley about forming V-shape, and the angle of the track of the alley are more than or equal to 100 degree and are less than or equal to 130
Degree.
6. percussion tool according to claim 1, it is characterised in that:
The percussion tool further includes the torque force adjusting mechanism for manually adjusting the outputting torsion of the percussion tool for user,
The torque force adjusting mechanism is connected to the motor and is provided with multiple regulation stalls；Alternatively, the percussion tool further includes certainly
Adapt to adjust the torque force adjusting mechanism of the outputting torsion of the percussion tool, the torque force adjusting mechanism include constitute electrical connection or
The electric machine controller and sensor module of person's signal connection, the sensor module includes current sensor or/and moment sensing
Device, the electric machine controller are electrically connected with motor composition.
7. percussion tool according to claim 1, it is characterised in that:
The ratio of the outputting torsion of the rotary inertia of the hammer and the percussion tool is more than or equal to 1 × 10-4 Kgmm/N and small
In equal to 2 × 10-4 kg·mm/N。
8. percussion tool according to claim 7, it is characterised in that:
The ratio of the outputting torsion of the rotary inertia of the hammer and the percussion tool is equal to 1.2 × 10-4 kg·mm/N。
9. percussion tool according to claim 1, it is characterised in that:
The revolving speed of the motor is more than or equal to 12000 rpm and is less than or equal to 28000 rpm；The reduction ratio of the transmission mechanism is big
In equal to 3 and less than or equal to 7.
10. percussion tool according to claim 1, it is characterised in that:
The motor is inner rotor motor；The motor includes stator, and the stator includes stack of laminations, and the stack of laminations is formed with
The multiple magnetic poles radially extended towards the pivot center；The outputting torsion of the folded length and percussion tool of the stack of laminations
Ratio is more than or equal to 5 × 10-5 N and be less than or equal to 2 × 10-4 N。
11. percussion tool according to claim 10, it is characterised in that:
The ratio of the outputting torsion of the folded length and percussion tool of the stack of laminations is equal to 1 × 10-4 N。
12. percussion tool according to claim 1, it is characterised in that:
The percussion tool is impact screwdriver, impact drill, impact wrench or electric hammer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920108864.3U CN209717602U (en) | 2019-01-22 | 2019-01-22 | Percussion tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920108864.3U CN209717602U (en) | 2019-01-22 | 2019-01-22 | Percussion tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209717602U true CN209717602U (en) | 2019-12-03 |
Family
ID=68680759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920108864.3U Active CN209717602U (en) | 2019-01-22 | 2019-01-22 | Percussion tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209717602U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113334070A (en) * | 2021-06-08 | 2021-09-03 | 浙江丰立智能科技股份有限公司 | Intelligent assembly line and assembly process of gearbox planetary system |
-
2019
- 2019-01-22 CN CN201920108864.3U patent/CN209717602U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113334070A (en) * | 2021-06-08 | 2021-09-03 | 浙江丰立智能科技股份有限公司 | Intelligent assembly line and assembly process of gearbox planetary system |
| CN113334070B (en) * | 2021-06-08 | 2022-12-09 | 浙江丰立智能科技股份有限公司 | Intelligent assembly line and assembly process of gearbox planetary system |
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Address after: 211106 No. 529, 159, Jiangjun Avenue, Jiangning District, Nanjing, Jiangsu Province Patentee after: Nanjing Quanfeng Technology Co.,Ltd. Address before: No. 529, Jiangjun Avenue, Jiangning Economic and Technological Development Zone, Nanjing, Jiangsu Province Patentee before: NANJING CHERVON INDUSTRY Co.,Ltd. |