CN110919582A - Electric spanner - Google Patents
Electric spanner Download PDFInfo
- Publication number
- CN110919582A CN110919582A CN201911348470.6A CN201911348470A CN110919582A CN 110919582 A CN110919582 A CN 110919582A CN 201911348470 A CN201911348470 A CN 201911348470A CN 110919582 A CN110919582 A CN 110919582A
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- CN
- China
- Prior art keywords
- driving
- transmission
- fastening device
- electric wrench
- fastening
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 49
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 230000007246 mechanism Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The invention discloses an electric wrench, which comprises a shell, and a driving device, a transmission device and a fastening device which are arranged in the shell, wherein the transmission device is respectively meshed with the driving device and the fastening device and is used for amplifying the torque of the driving device and driving the fastening device to fasten a nut. According to the invention, the torque of the driving device is amplified through the transmission device, and the fastening device is driven to fasten the nut, so that the function that a small motor can provide large torque is realized, the size of the electric wrench is reduced, and the technical problems of large size, large operation space and low working efficiency of the electric wrench or the manual wrench in the prior art are solved.
Description
Technical Field
The invention relates to the technical field of wrenches, in particular to an electric wrench.
Background
The existing automatic wrenches are gun type tighteners, nuts or bolts are tightened or loosened by utilizing sleeves, power sources are pneumatic or electric, and the nuts of different specifications are adapted by replacing the sleeves.
The existing gun type automatic wrench has certain requirements on an operation space, particularly needs a larger operation space right above a bolt or a nut, and limits the application scene of the automatic wrench when the space above the nut or the bolt is narrow; the manual wrench needs to have a large operation space on the same plane of the nut, otherwise the work efficiency is greatly reduced, or the manual wrench cannot be operated directly, and when the manual wrench is matched with the sleeve to work, the manual wrench also needs to have a large operation space right above the nut.
Disclosure of Invention
The invention mainly aims to provide an electric wrench, which aims to reduce the volume of the electric wrench and solve the technical problems that the electric wrench or a manual wrench in the prior art is large in volume, needs a large operation space and is low in working efficiency.
In order to achieve the above object, the present invention provides an electric wrench, which includes a housing, and a driving device, a transmission device, and a fastening device installed in the housing, wherein the transmission device is engaged with the driving device and the fastening device, respectively, for amplifying a torque of the driving device and driving the fastening device to perform a fastening operation on a nut.
According to a further technical scheme, the driving device comprises a driving motor and a driving gear linked with the driving motor.
According to a further technical scheme, the transmission device comprises two groups of transmission mechanisms which are oppositely arranged, each group of transmission mechanism comprises a transmission gear, a transmission rod fixedly connected with the transmission gear and a worm arranged on the transmission rod, the transmission gear is meshed with the driving gear, the fastening device is positioned between the two worms, and the fastening device is meshed with the two worms.
According to a further technical scheme, a clamping groove matched with the nut is formed in the middle of the fastening device.
According to a further technical scheme, bolt fastening pieces are arranged on the periphery of the fastening device and are meshed with the two worms.
According to a further technical scheme, a bolt fastener fixing sliding groove is formed between the bolt fastener and the clamping groove of the fastening device.
The invention further adopts the technical scheme that the device also comprises a power supply and a driving circuit which are used for driving the motor to move.
The further technical scheme of the invention is that a speed regulating switch is arranged on the shell.
The invention has the beneficial effects that: the electric wrench has the beneficial effects that: according to the technical scheme, the device comprises a shell, and a driving device, a transmission device and a fastening device which are arranged in the shell; the transmission device is respectively meshed with the driving device and the fastening device and used for amplifying the torque of the driving device and driving the fastening device to fasten the nut, so that the function that the small motor can provide large torque is realized, the size of the electric wrench is reduced, and the technical problems that the electric wrench or the manual wrench in the prior art is large in size, large in operation space and low in working efficiency are solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a driving device, a transmission device and a fastening device of an electric wrench according to a preferred embodiment of the present invention;
FIG. 2 is a schematic view of the internal structure of the preferred embodiment of the electric wrench;
fig. 3 is a schematic structural diagram of a housing of the electric wrench according to the preferred embodiment of the present invention.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The technical scheme adopted by the invention is mainly to improve the structure of the traditional device, and simultaneously, a novel fastening device is designed, so that the feasibility of operation on the same plane of bolt rotation is realized, the condition that the fastening device loses power when rotating and meets a gap is solved through simultaneous transmission of the transmission rods on two sides, the torque is amplified through twice speed reduction of the transmission device, the function that a small motor can provide large torque is realized, and the miniaturization of the device is realized.
Specifically, referring to fig. 1 to 3, the present invention provides an electric wrench, wherein fig. 1 is a schematic structural diagram of a driving device, a transmission device, and a fastening device of a preferred embodiment of the electric wrench, fig. 2 is a schematic structural diagram of an interior of the preferred embodiment of the electric wrench, and fig. 3 is a schematic structural diagram of a housing of the preferred embodiment of the electric wrench.
As shown in fig. 1 to 3, in the present embodiment, the electric wrench includes a housing 10, and a driving device, a transmission device, and a fastening device installed in the housing 10.
The transmission device is respectively engaged with the driving device and the fastening device and is used for amplifying the torque of the driving device and driving the fastening device to fasten the nut.
This embodiment is passed through transmission enlargies drive arrangement's moment of torsion, and the drive fastener fastens the operation to the nut, has realized that small motor can provide the function of big moment of torsion to reduced electric wrench's volume, solved among the prior art electric wrench or manual spanner bulky, need great operating space, technical problem that work efficiency is low.
Further, as an embodiment, in the present embodiment, the driving device includes a driving motor 20 and a driving gear 30 linked with the driving motor 20.
The transmission device comprises two groups of transmission mechanisms which are oppositely arranged, each group of transmission mechanism comprises a transmission gear 40, a transmission rod 50 fixedly connected with the transmission gear 40 and a worm 60 arranged on the transmission rod 50, the transmission gear 40 is meshed with the driving gear 30, the fastening device is positioned between the two worms 60, and the fastening device is meshed with the two worms 60.
And a clamping groove 70 matched with the nut is formed in the middle of the fastening device. The fastening device can be formed by modifying a worm wheel with a hollow middle part, the fastening devices with different grooves and different sizes can be replaced to operate nuts with different models, the periphery of the fastening device is provided with a bolt fastener 80, and the bolt fastener 80 is meshed with the two worms 60. The fastening device is provided with a bolt fastener fixing sliding groove 90 between the bolt fastener 80 and the clamping groove 70.
Further, the motor comprises a power supply and a driving circuit 100 for driving the motor to move, a speed regulating switch 110 connected with the power supply is arranged on the shell 10, and the rotating speed can be regulated by regulating the opening and closing size of the speed regulating switch 110. Wherein, the power supply can adopt a lithium battery.
The structure and the operation principle of the electric wrench of the present invention will be further explained in detail below.
The electric wrench comprises a lithium battery, a driving device, a transmission device and a fastening device. The driving device comprises a driving motor 20 and a driving gear 30, and the transmission device comprises a transmission gear 40, a transmission rod 50 and a worm 60. The fastening device can be formed by modifying a worm wheel with a hollow middle part, and the fastening device can be replaced according to nuts with different sizes. The lithium battery provides electric energy, the control circuit drives the motor 20 to provide power to drive the driving gear 30 to rotate, the driving gear 30 is meshed with the transmission gear 40 to transmit movement and amplify torque, the rotation movement and the torque are transmitted to the worm 60 through the transmission rod 50, the worm 60 and the bolt fastener 80 are meshed to amplify the rotation movement and the torque and transmit the amplified rotation and torque to the fastening device, and the fastening device is driven to rotate to perform fastening operation on the nut. The speed regulating switch 110 is controlled to control the rotating speed, the forward rotation, the reverse rotation and the start and stop of the motor through the driving circuit 100, so that the purposes of controlling the rotating speed, the forward rotation, the reverse rotation and the start and stop of the fastening device are achieved.
The electric wrench has the beneficial effects that: according to the technical scheme, the device comprises a shell, and a driving device, a transmission device and a fastening device which are arranged in the shell; the transmission device is respectively meshed with the driving device and the fastening device and used for amplifying the torque of the driving device and driving the fastening device to fasten the nut, so that the function that the small motor can provide large torque is realized, the size of the electric wrench is reduced, and the technical problems that the electric wrench or the manual wrench in the prior art is large in size, large in operation space and low in working efficiency are solved.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. An electric wrench, comprising a housing, and a driving device, a transmission device, and a fastening device installed in the housing,
the transmission device is respectively engaged with the driving device and the fastening device and is used for amplifying the torque of the driving device and driving the fastening device to fasten the nut.
2. The power wrench as claimed in claim 1, wherein the driving means includes a driving motor, a driving gear linked with the driving motor.
3. The electric wrench as claimed in claim 2, wherein the transmission device comprises two sets of transmission mechanisms disposed oppositely, each set of transmission mechanism comprises a transmission gear, a transmission rod fixedly connected with the transmission gear, and a worm mounted on the transmission rod, the transmission gear is engaged with the driving gear, the fastening device is located between the two worms, and the fastening device is engaged with the two worms.
4. The electric wrench as claimed in claim 3, wherein the fastening device has a slot formed in the middle thereof for engaging with the nut.
5. The electric wrench as claimed in claim 4, wherein the fastening means is provided at an outer periphery thereof with a bolt fastener which is engaged with the two worms.
6. The electric wrench as claimed in claim 5, wherein the fastening device has a bolt fastening sliding slot between the bolt fastening member and the engaging slot.
7. The power wrench of claim 2, further comprising a power source and drive circuitry for driving movement of the motor.
8. The electric wrench as claimed in any one of claims 1 to 7, wherein the housing is provided with a speed regulating switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911348470.6A CN110919582A (en) | 2019-12-24 | 2019-12-24 | Electric spanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911348470.6A CN110919582A (en) | 2019-12-24 | 2019-12-24 | Electric spanner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110919582A true CN110919582A (en) | 2020-03-27 |
Family
ID=69860829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911348470.6A Pending CN110919582A (en) | 2019-12-24 | 2019-12-24 | Electric spanner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110919582A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112086844A (en) * | 2020-09-14 | 2020-12-15 | 国网山东省电力公司商河县供电公司 | Safe auxiliary dismounting tool for electric power threaded connector |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090056508A1 (en) * | 2007-08-31 | 2009-03-05 | Ning Bo Great Wall Precision Industrial Co., Ltd. | Power Adjustable Wrench |
| US20090078091A1 (en) * | 2007-07-27 | 2009-03-26 | Vincent Martin Samudosky | Powered Wrench |
| CN201856212U (en) * | 2010-10-29 | 2011-06-08 | 青岛理工大学 | Electric-hand double-action multifunctional wrench |
| CN201872114U (en) * | 2010-11-09 | 2011-06-22 | 山东电力集团公司枣庄供电公司 | Power assisted wrench |
| CN103372829A (en) * | 2013-07-16 | 2013-10-30 | 傅岩 | Socket spanner |
| CN204431135U (en) * | 2015-01-23 | 2015-07-01 | 尤传琦 | Twin-screw drives open-end wrench |
| CN204819309U (en) * | 2015-07-17 | 2015-12-02 | 北汽福田汽车股份有限公司 | Wrench |
| US20160375563A1 (en) * | 2011-05-23 | 2016-12-29 | HYTORC Division Unex Corporation | Apparatus for tightening threaded fasteners |
| CN205889076U (en) * | 2016-08-12 | 2017-01-18 | 唐国强 | Electricity movable sleeve spanner |
| CN208961888U (en) * | 2018-07-18 | 2019-06-11 | 北汽福田汽车股份有限公司 | Spanner |
| CN209753308U (en) * | 2019-01-29 | 2019-12-10 | 重庆天旗实业有限公司 | Vertical adhesive press |
| CN211841746U (en) * | 2019-12-24 | 2020-11-03 | 深圳职业技术学院 | Electric spanner |
-
2019
- 2019-12-24 CN CN201911348470.6A patent/CN110919582A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090078091A1 (en) * | 2007-07-27 | 2009-03-26 | Vincent Martin Samudosky | Powered Wrench |
| US20090056508A1 (en) * | 2007-08-31 | 2009-03-05 | Ning Bo Great Wall Precision Industrial Co., Ltd. | Power Adjustable Wrench |
| CN201856212U (en) * | 2010-10-29 | 2011-06-08 | 青岛理工大学 | Electric-hand double-action multifunctional wrench |
| CN201872114U (en) * | 2010-11-09 | 2011-06-22 | 山东电力集团公司枣庄供电公司 | Power assisted wrench |
| US20160375563A1 (en) * | 2011-05-23 | 2016-12-29 | HYTORC Division Unex Corporation | Apparatus for tightening threaded fasteners |
| CN103372829A (en) * | 2013-07-16 | 2013-10-30 | 傅岩 | Socket spanner |
| CN204431135U (en) * | 2015-01-23 | 2015-07-01 | 尤传琦 | Twin-screw drives open-end wrench |
| CN204819309U (en) * | 2015-07-17 | 2015-12-02 | 北汽福田汽车股份有限公司 | Wrench |
| CN205889076U (en) * | 2016-08-12 | 2017-01-18 | 唐国强 | Electricity movable sleeve spanner |
| CN208961888U (en) * | 2018-07-18 | 2019-06-11 | 北汽福田汽车股份有限公司 | Spanner |
| CN209753308U (en) * | 2019-01-29 | 2019-12-10 | 重庆天旗实业有限公司 | Vertical adhesive press |
| CN211841746U (en) * | 2019-12-24 | 2020-11-03 | 深圳职业技术学院 | Electric spanner |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112086844A (en) * | 2020-09-14 | 2020-12-15 | 国网山东省电力公司商河县供电公司 | Safe auxiliary dismounting tool for electric power threaded connector |
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