CN209021964U - Miniature electric screwdriver - Google Patents
Miniature electric screwdriver Download PDFInfo
- Publication number
- CN209021964U CN209021964U CN201821749928.XU CN201821749928U CN209021964U CN 209021964 U CN209021964 U CN 209021964U CN 201821749928 U CN201821749928 U CN 201821749928U CN 209021964 U CN209021964 U CN 209021964U
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- Prior art keywords
- shell
- bearing block
- miniature electric
- output bearing
- reduction box
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- RVCKCEDKBVEEHL-UHFFFAOYSA-N 2,3,4,5,6-pentachlorobenzyl alcohol Chemical compound OCC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl RVCKCEDKBVEEHL-UHFFFAOYSA-N 0.000 claims abstract description 19
- 210000002421 cell wall Anatomy 0.000 claims description 22
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 10
- 229910052744 lithium Inorganic materials 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 abstract description 14
- 238000010168 coupling process Methods 0.000 abstract description 14
- 238000005859 coupling reaction Methods 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 10
- 238000009434 installation Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 7
- 230000003993 interaction Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
A kind of miniature electric screwdriver comprising the front end of shell is arranged in shell and screwdriver bit, the screwdriver bit；Cavity is provided in the shell, PCBA board, motor, planetary reduction box, output bearing block are provided in the cavity, the motor is electrically connected with PCBA board, and the motor, planetary reduction box, output bearing block are successively drivingly connected, the screwdriver bit and output bearing block detachable connection；It is provided with cylinder rack barrel on the planetary reduction box, ring gear compatible with the cylinder rack barrel is provided on the output bearing block.The utility model realizes the effect of shaft coupling using the combination of rack barrel and ring gear, to eliminate coaxiality error, transmits torque, reduces drive noise and resonance, and using effect is good, and its structure is simple, small in size, installation and removal are very convenient.
Description
Technical field
The utility model relates to screwdriver field more particularly to a kind of miniature electric screwdrivers.
Background technique
Screwdriver is a kind of tool for twisting screw to force its in place, usually has a thin sphenocephaly, can insert
Enter in the line of rabbet joint or recess of screw cap, also known as " screwdriver ".Screwdriver mainly has two kinds of a word (negative sign) and cross (positive sign).Often
The also hexagonal screwdriver, including interior hexagonal and two kinds of outer-hexagonal seen.
Prior art discloses a kind of aspirated-air type electric screwdriver, (application number: 201520377806.2), which includes:
Fixed bracket, is fixed at the servo motor on the fixed bracket by attachment base, is arranged by first bearing described
Shaft coupling in attachment base, the screwdriver being connected by the shaft coupling with the output shaft of the servo motor are set in described
Thrust bearing on servo motor output shaft, connected cavity, is arranged set in the cavity with the lower part of the attachment base
Cylinder, the piston matched with the inner ring of the sleeve are sequentially sleeved at second bearing on the screwdriver, fixation from top to bottom
Set, spring, spring base, suction pipe；It is provided in the circumferential wall of the cavity for the cavity to be connected to vacuum generator
Venthole, at least provided with a stomata on the spring base, the thrust bearing is located at the servo motor and the shaft coupling
Between device.
But the electric screwdriver of the patent is to utilize traditional shaft coupling, and the technics comparing of traditional shaft coupling is multiple
It is miscellaneous, volume is big, be unfavorable for electric screwdriver to miniaturization, and shaft coupling transmission it is flexible it is poor, precision is inadequate, be driven
Noise and resonate it is also bigger than normal.
Summary of the invention
Shortcoming present in view of the above technology, the purpose of the utility model is to provide a kind of miniature electric screws
Batch, which realizes the effect of shaft coupling by the combination using rack barrel and ring gear, and using effect is good, and its structure
Simply, small in size, installation and removal are conveniently.
To achieve the above object, the utility model is realized in this way:
A kind of miniature electric screwdriver comprising the front end of shell is arranged in shell and screwdriver bit, the screwdriver bit；
It is provided with cavity in the shell, PCBA board, motor, planetary reduction box, output bearing block, the electricity are provided in the cavity
Machine is electrically connected with PCBA board, the motor, planetary reduction box, output bearing block be successively drivingly connected, the screwdriver bit with it is defeated
Bearing block detachable connection out；It is provided with cylinder rack barrel on the planetary reduction box, is arranged on the output bearing block
There is ring gear compatible with the cylinder rack barrel.In this application, motor receives the signal of PCBA board, and motor passes through drive
The rotation of dynamic planetary reduction box and fed bearings seat, and then drive the rotation of screwdriver bit；And during this driving, pass through
The interaction between ring gear on cylinder rack barrel on planetary reduction box and output bearing block, realizes the function of shaft coupling
Can, reach and eliminate coaxiality error, transmitting torque, reduces the purpose of drive noise and resonance, light-weight, the body of planetary reducer
Product is small, gear range is big, high-efficient, smooth running, noise are low adaptable, and screwdriver bit with to export bearing block detachable
Formula connection, different screwdriver bits is replaced convenient for operator.
Further, the shell is hollow cylinder, at least one is provided on the shell and is opened for controlling the present apparatus
Close the key used with positive and negative rotation, the key and PCBA board electrical connection.The shell is hollow cylinder, is convenient for the present apparatus
Driving structure be accommodated in cavity, conducive to reduce the present apparatus small product size；The setting of the key is also convenient for user behaviour
Make, use the present apparatus.
Further, one end that the planetary reduction box is connected with output bearing block is provided with cell wall, the diameter of the cell wall
Smaller than the diameter of planetary reduction box, the cylinder rack barrel is arranged in cell wall, and the cell wall is adapted with output bearing block,
And the cell wall is socketed in output bearing block.The cell wall is socketed in output bearing block, so that planetary reduction box and output
Connection between bearing block is more stable, and the coupling part setting of cylinder rack barrel and the ring gear on output bearing block exists
In the cavity that cell wall is enclosed, it is further ensured that it connects transmission portion, reduces the error of concentricity rotation, guarantee transmission
Accuracy.
Further, it is provided with a plurality of first positioning holes on the cell wall, is provided on the output bearing block a plurality of
Second location hole compatible with first positioning hole.The setting of the first positioning hole and second location hole has positioning and consolidates
Fixed effect, so that the connection between planetary reduction box and output bearing block is more stable.
Further, the front end of the shell is provided with a plurality of fixation holes, a plurality of fixation holes and first positioning hole,
Second location hole is adapted.By the way that fixation hole is arranged on the shell, so that energy between shell, planetary reduction box and output bearing block
It is enough fixedly connected, reduces the resonance generated when transmission and noise, the application is avoided to will appear driving error when used for a long time.
Further, lithium battery is additionally provided in the shell, the lithium battery is electrically connected with PCBA board.The lithium battery
Setting, convenient for the use of the present apparatus, removes from and connects the limitation that power supply line just can be used.
Further, the DC interface for charging is additionally provided on the shell, the DC interface is electrically connected with PCBA board.It is logical
Crossing DC interface can charge to lithium battery, avoid frequently replacing battery waste of resource, while being conducive to the protection of environment.
Further, a plurality of non-slip grooves are provided on the shell.The setting of the non-slip groove, can be improved case surface
Anti-slide performance, convenient for operator hold the present apparatus, improve the safety used.
Further, the shell further includes the rear cover that top is arranged in, the rear cover and shell detachable connection.Institute
Rear cover and shell detachable connection are stated, convenient for battery is repaired or replaced to the present apparatus.
The advantage of the utility model is that the utility model realizes shaft coupling using the combination of rack barrel and ring gear
Effect transmit torque to eliminate coaxiality error, reduce drive noise and resonance, using effect is good, and its structure is simple,
It is small in size, installation and removal it is very convenient.
Detailed description of the invention
Fig. 1 is this implementation Structure explosion diagram.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Embodiment: referring to Fig.1.
A kind of miniature electric screwdriver comprising the front end of shell 1 is arranged in shell 1 and screwdriver bit 2, screwdriver bit 2；
Cavity is provided in shell 1, be provided in cavity PCBA board 3, motor 4, planetary reduction box 5, output bearing block 6, motor 4 with
PCBA board 3 is electrically connected, and motor 4, planetary reduction box 5, output bearing block 6 are successively drivingly connected, screwdriver bit 2 and output bearing block
6 detachable connections；It is provided with cylinder rack barrel 51 on planetary reduction box 5, exports and is provided with and cylinder cydariform on bearing block 6
The compatible ring gear (not shown) of gear 51.In this application, motor 4 receives the signal of PCBA board 3, and motor 4 passes through driving
The rotation of planetary reduction box 5 and fed bearings seat 6, and then drive the rotation of screwdriver bit 2；And during this driving, lead to
It crosses the cylinder rack barrel 51 on planetary reduction box 5 and exports the interaction between the ring gear (not shown) on bearing block 6,
The function of realizing shaft coupling reaches and eliminates coaxiality error, transmitting torque, reduces the purpose of drive noise and resonance, planet subtracts
Fast the light-weight, small in size of machine 5, gear range be big, high-efficient, smooth running, noise are low adaptable, and screwdriver bit 2
With output 6 detachable connection of bearing block, different screwdriver bits 2 is replaced convenient for operator.
In the present embodiment, shell 1 is hollow cylinder, at least one is provided on shell 1 and is opened for controlling the present apparatus
The key 7 used with positive and negative rotation is closed, key 7 and PCBA board 3 are electrically connected.Shell 1 is hollow cylinder, convenient for by the drive of the present apparatus
Dynamic structure is accommodated in cavity, conducive to the small product size for reducing the present apparatus；The setting of key 7 is also convenient for user's operation, uses
The present apparatus.
In the present embodiment, one end that planetary reduction box 5 is connected with output bearing block 6 is provided with cell wall 52, cell wall 52
Diameter is smaller than the diameter of planetary reduction box 5, and cylinder rack barrel 51 is arranged in cell wall 52, cell wall 52 and output 6 phase of bearing block
Adaptation, and cell wall 52 is socketed in output bearing block 6.Cell wall 52 be socketed in output bearing block 6 in so that planetary reduction box 5 with
The connection exported between bearing block 6 is more stable, and cylinder rack barrel 51 and the ring gear (not shown) for exporting on bearing block 6
Coupling part be arranged in the cavity that cell wall 52 is enclosed, be further ensured that its connect transmission portion, reduce concentricity
The error of rotation guarantees transmission accuracy.
In the present embodiment, it is provided with a plurality of first positioning holes 53 on cell wall 52, exports and is provided with plural number on bearing block 6
A second location hole 61 compatible with first positioning hole 53.The setting of first positioning hole 53 and second location hole 61, it is fixed to have
Position and fixed effect, so that the connection between planetary reduction box 5 and output bearing block 6 is more stable.
In the present embodiment, the front end of shell 1 is provided with a plurality of fixation holes 11, a plurality of fixation holes 11 and the first positioning
Hole 53, second location hole 61 are adapted.By the way that fixation hole 11 is arranged on shell 1, so that shell 1, planetary reduction box 5 and output
It is capable of fixing connection between bearing block 6, reduces the resonance generated when transmission and noise, avoids the application that from going out when used for a long time
Existing driving error.
In the present embodiment, lithium battery 8 is additionally provided in shell 1, lithium battery 8 is electrically connected with PCBA board 3.Lithium battery 8
Setting, convenient for the use of the present apparatus, removes from and connects the limitation that power supply line just can be used.
In the present embodiment, the DC interface (not shown) for charging, DC interface and PCBA board 3 are additionally provided on shell 1
Electrical connection.It can be charged to lithium battery 8 by DC interface, avoid frequently replacing battery waste of resource, while being conducive to ring
The protection in border.
In the present embodiment, a plurality of non-slip grooves 12 are provided on shell 1.Shell 1 can be improved in the setting of non-slip groove 12
The anti-slide performance on surface holds the present apparatus convenient for operator, improves the safety used.
In the present embodiment, shell 1 further includes the rear cover 13 that top is arranged in, 1 detachable connection of rear cover 13 and shell.
1 detachable connection of rear cover 13 and shell, convenient for battery is repaired or replaced to the present apparatus.
The advantage of the utility model is that the utility model realizes shaft coupling using the combination of rack barrel and ring gear
Effect transmit torque to eliminate coaxiality error, reduce drive noise and resonance, using effect is good, and its structure is simple,
It is small in size, installation and removal it is very convenient.
It is above the utility model preferred embodiment, but the utility model is not limited to this, any this field
Technical staff can think variation should all fall into the protection scope of the utility model.
Claims (9)
1. a kind of miniature electric screwdriver comprising the front end of shell is arranged in shell and screwdriver bit, the screwdriver bit；Its
It is characterized in that, cavity is provided in the shell, PCBA board, motor, planetary reduction box, output bearing are provided in the cavity
Seat, the motor are electrically connected with PCBA board, and the motor, planetary reduction box, output bearing block are successively drivingly connected, the screw
Screwdriver bit and output bearing block detachable connection；Cylinder rack barrel, the output bearing are provided on the planetary reduction box
Ring gear compatible with the cylinder rack barrel is provided on seat.
2. a kind of miniature electric screwdriver according to claim 1, it is characterised in that the shell is hollow cylinder, institute
It states and is provided at least one key used for controlling present apparatus switch with positive and negative rotation, the key and PCBA board electricity on shell
Connection.
3. a kind of miniature electric screwdriver according to claim 1, it is characterised in that the planetary reduction box and output shaft
It holds the connected one end of seat and is provided with cell wall, the diameter of the cell wall is smaller than the diameter of planetary reduction box, the cylinder rack barrel
It is arranged in cell wall, the cell wall is adapted with output bearing block, and the cell wall is socketed in output bearing block.
4. a kind of miniature electric screwdriver according to claim 3, it is characterised in that be provided on the cell wall a plurality of
First positioning hole is provided with a plurality of second location holes compatible with first positioning hole on the output bearing block.
5. a kind of miniature electric screwdriver according to claim 4, it is characterised in that the front end of the shell is provided with multiple
Several fixation holes, a plurality of fixation holes are adapted with first positioning hole, second location hole.
6. a kind of miniature electric screwdriver according to claim 1, it is characterised in that be additionally provided with lithium electricity in the shell
Pond, the lithium battery are electrically connected with PCBA board.
7. a kind of miniature electric screwdriver according to claim 1, it is characterised in that be additionally provided with and be used on the shell
The DC interface of charging, the DC interface are electrically connected with PCBA board.
8. a kind of miniature electric screwdriver according to claim 1, it is characterised in that be provided on the shell a plurality of
Non-slip groove.
9. a kind of miniature electric screwdriver according to claim 1, it is characterised in that the shell further includes that setting is being pushed up
The rear cover at end, the rear cover and shell detachable connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821749928.XU CN209021964U (en) | 2018-10-26 | 2018-10-26 | Miniature electric screwdriver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821749928.XU CN209021964U (en) | 2018-10-26 | 2018-10-26 | Miniature electric screwdriver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209021964U true CN209021964U (en) | 2019-06-25 |
Family
ID=66907336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821749928.XU Active CN209021964U (en) | 2018-10-26 | 2018-10-26 | Miniature electric screwdriver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209021964U (en) |
-
2018
- 2018-10-26 CN CN201821749928.XU patent/CN209021964U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231007 Address after: Room 201, Building 2, No. 86 Qingxi Dongfeng Road, Qingxi Town, Dongguan City, Guangdong Province, 523000 Patentee after: Guangdong Xiyu Technology Co.,Ltd. Address before: 523000 Xinlide Industrial Park A1, Dongfeng Road, Dali Village, Qingxi Town, Dongguan City, Guangdong Province Patentee before: Hu Wei |
|
| TR01 | Transfer of patent right |