CN205651274U - Subassembly is played in hitting of electric spanner - Google Patents
Subassembly is played in hitting of electric spanner Download PDFInfo
- Publication number
- CN205651274U CN205651274U CN201620459267.1U CN201620459267U CN205651274U CN 205651274 U CN205651274 U CN 205651274U CN 201620459267 U CN201620459267 U CN 201620459267U CN 205651274 U CN205651274 U CN 205651274U
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- China
- Prior art keywords
- horizontal foot
- taping block
- output shaft
- block
- disk
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Abstract
The utility model provides a subassembly is played in hitting of electric spanner belongs to electric tool technical field. It has solved technical problem such as the easy damage of current subassembly is played in hitting of electric spanner. This electric spanner is including can pivoted center pin and output shaft, hits and plays the subassembly including strikeeing the piece, strikes the piece and goes up the interval and be equipped with two at least archs, strikes that still be equipped with the ring on the piece and the ring is connected with every arch, and the tip of output shaft has set firmly the disc, has two at least salients in the horizontal foot of disc quotation on the disc, and the side of horizontal foot and protruding one -to -one setting and every horizontal foot can contact to the side of protruding with corresponding. The utility model discloses in through the ring strengthen between each arch and protruding with strike the joint strength between the piece, strengthen between each horizontal foot and the joint strength between horizontal foot and the output shaft through the disc, increase the bearing capacity of arch and horizontal foot, thereby improve electric spanner and hit joint strength and the life who beats the subassembly structure.
Description
Technical field
This utility model belongs to electric tool technical field, relates to a kind of electric wrench, special
It it not the impact assembly of a kind of electric wrench.
Background technology
Electric wrench is exactly the spanner as power with power supply or battery, and it is high-strength to be that one is tightened
The instrument of degree bolt, is again high-strength bolt rifle.Be broadly divided into impact wrench, turn round cut spanner,
Constant torque wrench, corner spanner, angular spanner.Electric impact wrench is adopted mostly at present
Make to drive motor with micromachine, by the horizontal foot on taping block impact output shaft, it is achieved
The transmission of moment, thus the inertia force that the taping block flywheel of high speed rotating produces is converted into
Impulsive force reaches the purpose of assembling-disassembling bolt or nut.
China's patent (notification number: 202193320U；The day for announcing: 2015-01-28) public
Driven a kind of electric wrench, including casing, be arranged in the brush carrier of casing both sides, handle,
Be arranged in handle controls switch and the motor being located in casing, impact block, T-shaped defeated
Shaft, also includes Planetary Gear Transmission axle and gear, Planetary Gear Transmission axle is set with
Impact block, impact block is provided with T-shaped output shaft, the upper bottom of Planetary Gear Transmission axle
Putting and be symmetrically installed with gear, gear is meshed with Planetary Gear Transmission axle；The center of gear
Running through and have a straight pin, gear is connected with motor-driven, gear by straight pin respectively with
Planetary Gear Transmission axle and gear ring are connected；The rotor banding moving gear of motor, gear is by row
Star gearing shaft drives impact block to impact T-shaped output shaft.This utility model is whole after slowing down
Body structure is more stable, exports stronger.
Above-mentioned patent documentation has two projections, with two of T-shaped output shaft on impact block
Horizontal foot cooperates, and protruding impacts horizontal foot transmission torsion, due at work, protruding and
Horizontal foot is altofrequency contact and has the biggest impulsive force, and above-mentioned projection is with impact block originally
Body and horizontal foot are the most weak with the bonding strength of T-shaped output shaft the machine, thus easily cause
Protruding or horizontal foot ruptures, and makes whole electric wrench lose function.
Summary of the invention
This utility model is the problems referred to above existed for existing technology, it is provided that a kind of
The impact assembly of electric wrench.Technical problem to be solved in the utility model is: how
Improve bonding strength and the service life of electric wrench impact modular construction.
The purpose of this utility model can be realized by following technical proposal:
The impact assembly of a kind of electric wrench, electric wrench includes the central shaft that can rotate
And output shaft, described impact assembly includes taping block, described taping block and described central shaft
It is connected and central shaft can drive described taping block to rotate, it is characterised in that described beat
Hit that to be interval with at least two on block protruding, described taping block is additionally provided with annulus and described
Annulus is connected with each described projection, and the end of described output shaft is installed with disk and institute
State the diameter diameter more than described output shaft of disk, described disk has at least two
Protruding from the horizontal foot of disk card, described horizontal foot is arranged and every with described protruding one_to_one corresponding
The side of individual horizontal foot can contact with corresponding protruding side.
Its principle is as follows: electric wrench is driven by motor, driven by motor central axis,
Being provided with centrifugal mechanism between central shaft and taping block, the bulge clearance on taping block hits defeated
Horizontal foot on shaft, thus pass to output shaft torsion；By the motional inertia of taping block
Produce instant impact and strengthen torsion strength, and stablize motor speed, alleviate transmission fluctuation,
Ensure the related accessory in electric wrench, the most rapidly the securing member such as screw or bolt
Open or tighten.The technical program arranges on taping block annulus, is strengthened by annulus each
Bonding strength between individual projection and between projection and taping block, by output shaft
Fixed disk, is strengthened between each horizontal foot and between horizontal foot and output shaft by disk
Bonding strength, increases the bearing capacity of protruding and horizontal foot；Thus improve electric wrench impact
The bonding strength of modular construction and service life.
In the impact assembly of above-mentioned electric wrench, described taping block is cylindrical and beats
Hitting and be further opened with along the axial installing hole of taping block in the middle part of block, described annulus is positioned at described beating
Hit the end face of block and be coaxially disposed with described taping block.Installing hole is used for installing connection center
Axle；Annulus is co-axially located at the end face of taping block, so strengthen between each projection and
While bonding strength between projection and taping block, it is to avoid protruding and horizontal foot is connect by annulus
Produce when touching and interfere.
In the impact assembly of above-mentioned electric wrench, the quantity of described projection be two and
Being symmetrically distributed on the end face of described taping block, the quantity of described horizontal foot is also two and right
Claiming to be distributed on the end face of described output shaft, described horizontal foot is radially arranged along described disk,
Two described horizontal feet are connected as a single entity and horizontal foot outer face is equal with the outer peripheral face of described disk
Together.Said structure further enhances the bonding strength of horizontal foot, and ensures that moment is transmitted
Stability.
In the impact assembly of above-mentioned electric wrench, described projection is along described taping block week
To distribution, described projection is gradually reduced along the radial direction ecto-entad width of taping block, described
Protruding connected away from the side of described taping block axis and the medial surface of described annulus.Protruding
In triangle column type, it is considered to ensure stability while production cost.
In the impact assembly of above-mentioned electric wrench, described annulus, protruding and described
Taping block is the most one-body molded, and described horizontal foot, disk are the most one-body molded with described output shaft.
Above-mentioned integrated structure simplifies production technology, and is further ensured that bonding strength.
Compared with prior art, this utility model arranges annulus, by circle on taping block
Ring is strengthened between each projection and bonding strength between protruding and taping block, by
Fixed disk on output shaft, strengthens between each horizontal foot by disk and horizontal foot and output
Bonding strength between axle, increases the bearing capacity of protruding and horizontal foot；Thus improve electronic
The bonding strength of spanner impact modular construction and service life.
Accompanying drawing explanation
Fig. 1 is the part-structure exploded perspective view of this electric wrench.
Fig. 2 is the perspective view of taping block in this electric wrench.
Fig. 3 is the stereoscopic mechanism schematic diagram of output shaft in this electric wrench.
In figure, 1, central shaft；2, output shaft；21, horizontal foot；22, disk；3, beat
Hit block；31, protruding；32, annulus；33, installing hole；4, spring；5, groove；6、
Steel ball.
Detailed description of the invention
The following is specific embodiment of the utility model and combine accompanying drawing, to this utility model
Technical scheme be further described, but this utility model is not limited to these embodiments.
As it is shown in figure 1, during in the present embodiment, electric wrench includes motor, can rotate
Mandrel 1 and output shaft 2, impact assembly includes taping block 3, taping block 3 and central shaft 1
It is connected and central shaft 1 can drive taping block 3 to rotate, central shaft 1 and taping block 3
Between be provided with centrifugal mechanism, taping block 3 is interval with at least two projection 31, hit
It is additionally provided with annulus 32 and annulus 32 on block 3 to be connected with each protruding 31, output shaft 2
End be installed with the diameter of disk 22 and disk 22 diameter more than output shaft 2, circle
There is on dish 22 at least two and protrude from the horizontal foot 21 of disk 22 card, horizontal foot 21 with
Protruding 31 one_to_one corresponding are arranged and the side of each horizontal foot 21 can be with corresponding projection
31 sides contact；During use, driven by motor central shaft 1 rotates, convex on taping block 3
Play 31 intervals and hit the horizontal foot 21 on output shaft 2, thus pass to output shaft 2 torsion；
Produce instant impact by the motional inertia of taping block 3 and strengthen torsion strength, and stable
Motor speed, alleviates transmission fluctuation, it is ensured that the related accessory in electric wrench, the soonest
Speed ground is opened the securing member such as screw or bolt or tighten；By annulus 32 in the present embodiment
Strengthen the bonding strength between each projection 31 and between protruding 31 and taping block 3,
By disk 22 fixed on output shaft 2, by disk 22 strengthen each horizontal foot 21 it
Between and horizontal foot 21 and output shaft 2 between bonding strength, increase protruding 31 and horizontal foot
The bearing capacity of 21；Thus improve the bonding strength of electric wrench impact modular construction and make
Use the life-span.
As in figure 2 it is shown, taping block 3 is cylindrical and is further opened with edge in the middle part of taping block 3
The installing hole 33 that taping block 3 is axial, annulus 32 be positioned at taping block 3 end face and with beat
Hitting block 3 to be coaxially disposed, installing hole 33 is used for installing connection central shaft 1；Annulus 32 is same
Axle is arranged on the end face of taping block 3, and projection 31 is circumferentially distributed along taping block 3, protruding
31 are gradually reduced along the radial direction ecto-entad width of taping block 3, and protruding 31 away from strike
The side of block 3 axis is connected with the medial surface of annulus 32；So strengthen each projection 31
Between and protruding 31 and taping block 3 between bonding strength while, it is to avoid annulus
Produce when 32 pairs of projections 31 contact with horizontal foot 21 and interfere.
As shown in Figures 2 and 3, the quantity of protruding 31 is two and is symmetrically distributed in strike
On the end face of block 3, the quantity of horizontal foot 21 is also two and is symmetrically distributed in output shaft 2
End face on, horizontal foot 21 is radially arranged along disk 22, two horizontal feet 21 be connected as a single entity and
Horizontal foot 21 outer face and the outer peripheral face flush of disk 22, further enhance horizontal foot 21
Bonding strength, and ensure the stability that moment is transmitted.
In the present embodiment, annulus 32, protruding 31 and taping block 3 are the most one-body molded, horizontal
Foot 21, disk 22 are the most one-body molded with output shaft 2, simplify production technology, go forward side by side
One step ensures bonding strength.
The centrifugal mechanism between central shaft 1 and taping block 3 in the present embodiment includes sheathed
The groove 5 offered on spring 4 on central shaft 1, central shaft 1 and be arranged on recessed
Some steel balls 6 in groove 5, on the sidewall of the centrally disposed axle of groove 51, when pressing
On and off switch, when making the state that switch is in Guan Bi, motor forward or reverse starts, logical
Crossing drive mechanism drives central shaft 1 to start to rotate, and when rotating speed reaches certain value, hits
Centrifugal moment suffered by block 3 is more than steel ball 6 screens moment so that protruding on taping block 3
Foot 21 side horizontal with on output shaft 2,31 sides contacts, horizontal foot on impact output shaft 2
21 sides, make output shaft 2 rotate or export certain torsion, reaching elasticity bolt nut
Effect.
Specific embodiment described in literary composition is only to this utility model spirit theory for example
Bright.This utility model person of ordinary skill in the field can be to described concrete reality
Execute example make various amendment or supplement or use similar mode to substitute, but can't
Deviate spirit of the present utility model or surmount scope defined in appended claims.
Claims (5)
1. an impact assembly for electric wrench, electric wrench includes the center that can rotate
Axle (1) and output shaft (2), described impact assembly includes taping block (3), described strike
Block (3) is connected with described central shaft (1) and central shaft (1) can drive described beating
Hit block (3) to rotate, it is characterised in that described taping block is interval with at least on (3)
Two projections (31), described taping block (3) is additionally provided with annulus (32) and described circle
Ring (32) is connected with each described projection (31), the end of described output shaft (2)
It is installed with the diameter of disk (22) and described disk (22) more than described output shaft (2)
Diameter, described disk (22) has at least two and protrudes from disk (22) card
Horizontal foot (21), described horizontal foot (21) and described projection (31) one_to_one corresponding arrange and
The side of each horizontal foot (21) can contact with corresponding projection (31) side.
The impact assembly of electric wrench the most according to claim 1, it is characterised in that
Described taping block (3) is cylindrical and taping block (3) middle part is further opened with along taping block
(3) axial installing hole (33), described annulus (32) is positioned at described taping block (3)
End face and be coaxially disposed with described taping block (3).
The impact assembly of electric wrench the most according to claim 2, it is characterised in that
The quantity of described projection (31) is two and is symmetrically distributed in the end of described taping block (3)
On face, the quantity of described horizontal foot (21) is also two and is symmetrically distributed in described output shaft
(2), on end face, described horizontal foot (21) is radially arranged along described disk (22), and two
Individual described horizontal foot (21) is connected as a single entity and horizontal foot (21) outer face and described disk (22)
Outer peripheral face flush.
The impact assembly of electric wrench the most according to claim 3, it is characterised in that
Described projection (31) in column type, described projection (31) along taping block (3) radial direction by
Width is gradually reduced outside to inside, and described projection (31) is away from described taping block (3) axis
The medial surface of side and described annulus (32) be connected.
5. according to the impact assembly of the electric wrench described in claim 1 or 2 or 3 or 4,
It is characterized in that, described annulus (32), protruding (31) and described taping block (3)
The most one-body molded, described horizontal foot (21), disk (22) are with described output shaft (2) all
One-body molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620459267.1U CN205651274U (en) | 2016-05-18 | 2016-05-18 | Subassembly is played in hitting of electric spanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620459267.1U CN205651274U (en) | 2016-05-18 | 2016-05-18 | Subassembly is played in hitting of electric spanner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205651274U true CN205651274U (en) | 2016-10-19 |
Family
ID=57403908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620459267.1U Active CN205651274U (en) | 2016-05-18 | 2016-05-18 | Subassembly is played in hitting of electric spanner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205651274U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102023114735A1 (en) | 2022-06-13 | 2023-12-14 | Makita Corporation | IMPACT TOOL |
| DE102023114732A1 (en) | 2022-06-13 | 2023-12-14 | Makita Corporation | IMPACT TOOL |
-
2016
- 2016-05-18 CN CN201620459267.1U patent/CN205651274U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102023114735A1 (en) | 2022-06-13 | 2023-12-14 | Makita Corporation | IMPACT TOOL |
| DE102023114732A1 (en) | 2022-06-13 | 2023-12-14 | Makita Corporation | IMPACT TOOL |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 318014 No. 991, east section of Donghai Avenue, Jiaojiang District, Taizhou City, Zhejiang Province Patentee after: Zhejiang Chaoli mechanical tools Co., Ltd Address before: 318000, No. 991 East China Sea Road, Jiaojiang District, Zhejiang, Taizhou Patentee before: ZHEJIANG CHAOLI MECHANICAL TOOLS Co.,Ltd. |
|
| CP03 | Change of name, title or address |