CN113814925B - Torque self-balancing electric wrench and remote screw disassembling and assembling method - Google Patents
Torque self-balancing electric wrench and remote screw disassembling and assembling method Download PDFInfo
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- CN113814925B CN113814925B CN202111210936.3A CN202111210936A CN113814925B CN 113814925 B CN113814925 B CN 113814925B CN 202111210936 A CN202111210936 A CN 202111210936A CN 113814925 B CN113814925 B CN 113814925B
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- 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
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- 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
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The invention discloses a torque self-balancing electric wrench, which comprises a wrench body, wherein the wrench body comprises a shell and a torque output shaft, and a power unit for applying a torque action on the torque output shaft is arranged in the shell; the torque output mechanism comprises a torque output shaft and a torque self-balancing mechanism, wherein the torque self-balancing mechanism comprises a torque balancing rod, the torque balancing rod is fixedly connected with the shell, and the end part of the torque output shaft is provided with a torque output head matched with a screw to be screwed; the torque balancing rod is provided with a torque balancing piece, and the torque balancing piece is used for transmitting the torque acting on the torque balancing piece to equipment where the screw hole matched with the screw to be screwed is located. The invention also discloses a method for disassembling and assembling the remote screw. The torque self-balancing electric wrench and the remote screw dismounting method can realize the torque effect during self-balancing dismounting or mounting of screws so as to meet the requirement of remote operation.
Description
Technical Field
The invention relates to a mechanical dismounting tool, in particular to a torque self-balancing electric wrench and a remote screw dismounting method.
Background
The screw is widely applied to various mechanical equipment, and can effectively connect two workpieces together to play a fastening role. The electric wrench is a tool for screwing the high-strength screw, is widely applied to initial screwing, final screwing and initial screwing of a torsional shear type high-strength screw in large hexagon head high-strength screw construction in dismounting scenes such as steel structure bridges, factory buildings, chemical engineering, power generation equipment and the like, and can also be applied to occasions with strict requirements on torque or axial force of screw fasteners.
The electric wrench is a hand tool, and the user holds the housing of the electric wrench to balance the reaction torque of tightening the screw. Since the electric wrench is a hand tool, the user needs to be in the field. However, for some special scenes, such as scenes that are not easily reached by human beings or scenes that are dangerous to human life and health, if a user is in person to operate the manual wrench, the life and health of the user may be damaged, and the use scenes of the manual wrench are limited. For example, as for the spent fuel post-processing equipment, the operation can only be performed in a long distance in consideration of the harm of radiation to human bodies, and therefore, the operation such as screwing or unscrewing the screw of the spent fuel post-processing equipment by using a manual wrench cannot be performed.
Disclosure of Invention
In view of the above, the present invention provides a torque self-balancing electric wrench and a remote screw assembling and disassembling method, which can perform a torque function during self-balancing disassembling or assembling a screw to meet a requirement of remote operation.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention firstly provides a torque self-balancing electric wrench, which comprises a wrench body, wherein the wrench body comprises a shell and a torque output shaft, and a power unit for applying a torque action on the torque output shaft is arranged in the shell;
the torque output mechanism comprises a torque output shaft and a torque balance mechanism, wherein the torque balance mechanism comprises a torque balance rod, the torque balance rod is fixedly connected with the shell, and the end part of the torque output shaft is provided with a torque output head matched with a screw to be screwed; the torque balancing rod is provided with a torque balancing piece, and the torque balancing piece is used for transmitting the torque acting on the torque balancing piece to equipment where the screw hole matched with the screw to be screwed is located.
Further, the torque output shaft comprises a first output shaft section and a second output shaft section, an outer sleeve is arranged between the first output shaft section and the second output shaft section, one end of the first output shaft section is in transmission connection with the power unit, and the other end of the first output shaft section is hinged with the outer sleeve; one end of the second output shaft section is in sliding fit with the outer sleeve and synchronously rotates with the outer sleeve, and the other end of the second output shaft section is hinged with the torque output head.
Further, the first output shaft section is hinged to the outer sleeve through a first split pin.
Further, the second output shaft section is hinged to the torque output head through a second cotter pin.
Furthermore, a square groove with a square radial section is formed in the outer sleeve, and the second output shaft section is a square shaft matched with the square groove.
Further, the outer sleeve towards the one end of second output shaft section is equipped with the big footpath section, be equipped with the suit in the big footpath section the inner skleeve on the second output shaft section, be equipped with in the big footpath section and be used for spacingly the jump ring of inner skleeve.
Further, the moment balance piece is located the below of moment of torsion output head, be equipped with the card hole on the moment balance piece, the card hole be used for with set up with wait to twist the boss cooperation on the equipment at screw complex screw place.
The invention also provides a remote screw disassembling and assembling method, which comprises the following steps:
1) Hoisting the torque self-balancing electric wrench to the position right above the screw to be screwed by using a power hand;
2) Driving the torque self-balancing electric wrench to descend by using a power hand, connecting a torque balancing piece to equipment where a screw hole matched with the screw to be screwed is located under the auxiliary action of a manipulator, and connecting a torque output head to the screw to be screwed;
3) And connecting a power supply, enabling the torque output shaft to exert a torque effect on the screw to be screwed, realizing the screwing or unscrewing of the screw to be screwed, and simultaneously transmitting the reverse torque applied to the shell to equipment where the screw hole matched with the screw to be screwed is located by utilizing the torque balancing rod.
Furthermore, the torque balance piece is positioned below the torque output head, and is provided with a clamping hole which is used for being matched with a boss arranged on equipment where a screw hole matched with the screw to be screwed is positioned; and arranging a screw hole matched with the screw to be screwed in the boss.
Further, the boss is set to be a polygonal boss with a polygonal axial section, and the clamping hole is set to be a polygonal clamping hole matched with the polygonal boss.
The invention has the beneficial effects that:
the torque self-balancing electric wrench is provided with the torque self-balancing mechanism, when in use, the torque output value of the to-be-screwed screw is screwed and unscrewed by using the torque output shaft and the torque output head, and meanwhile, the reverse torque action on the shell is transmitted to equipment where the screw hole matched with the to-be-screwed screw is located through the torque balancing rod and the torque balancing piece, so that the torque self-balancing is realized, a user does not need to hold the shell to operate the torque self-balancing electric wrench, namely, an operator does not need to be in close contact with the site, the torque self-balancing electric wrench is particularly suitable for scenes where people are not easy to reach or scenes where people are risky for life health, namely, the torque action when the torque self-balancing electric wrench is used for self-balancing screw dismounting or mounting, and the requirement of remote operation is met.
Drawings
In order to make the purpose, technical scheme and beneficial effect of the invention more clear, the invention provides the following drawings for explanation:
FIG. 1 is a schematic structural view of an embodiment of a torque-balanced electric wrench of the present invention;
fig. 2 is a left side view of fig. 1 (omitting the moment self-balancing mechanism).
Description of reference numerals:
1-with screw; 2-a first cotter pin; 3-a second cotter pin; 4-screws; a boss 5;
10-a wrench body; 11-a housing; 12-a torque output shaft; 13-torque output head; 14-a first output shaft section; 15-a second output shaft section; 16-an outer sleeve; 16 a-a major diameter section; 17-an inner sleeve; 18-a clamp spring;
20-moment balance bar; 21-moment balance piece.
Detailed Description
The present invention is further described with reference to the following drawings and specific examples so that those skilled in the art can better understand the present invention and can practice the present invention, but the examples are not intended to limit the present invention.
Fig. 1 is a schematic structural view of an embodiment of a torque self-balancing electric wrench according to the present invention. The torque self-balancing electric wrench of the embodiment comprises a wrench body 10, wherein the wrench body 10 comprises a shell 11 and a torque output shaft 12, and a power unit for applying a torque action to the torque output shaft 12 is arranged in the shell 11. The torque self-balancing electric wrench of the embodiment further comprises a torque self-balancing mechanism, the torque self-balancing mechanism comprises a torque balancing rod 20, the torque balancing rod 20 is fixedly connected with the shell 11, and a torque output head 13 matched with the screw 1 to be screwed is arranged at the end part of the torque output shaft 12; the moment balance rod 20 is provided with a moment balance piece 21, and the moment balance piece 21 is used for transmitting the moment action received by the moment balance piece 21 to equipment on which a screw hole matched with the screw 1 to be screwed is located. Specifically, the moment balancer 21 may be provided integrally with the moment balancer rod 20 or may be provided separately. The moment balance 21 of the present embodiment is provided separately from the moment balance bar 20. The moment balance bar 20 of the present embodiment is fixedly mounted to the housing 11 by means of screws 4.
Further, the torque output shaft 12 comprises a first output shaft section 14 and a second output shaft section 15, an outer sleeve 16 is arranged between the first output shaft section 14 and the second output shaft section 15, one end of the first output shaft section 14 is in transmission connection with the power unit, and the other end of the first output shaft section is hinged with the outer sleeve 16; one end of the second output shaft section 15 is in sliding fit with the outer sleeve 16 and synchronously rotates with the outer sleeve 16, and the other end of the second output shaft section is hinged with the torque output head 13. Specifically, the first output shaft section 14 and the outer sleeve 16 of the present embodiment are hinged through the first split pin 2, the second output shaft section 15 and the torque output head 13 are hinged through the second split pin 3, and the torque output head 13 matched with the first output shaft section can be replaced according to the screwed screws 1 with different specifications. The torque output head 13 of the present embodiment uses a screw sleeve that engages with the head of the screwhead of the driving screw 1. In the embodiment, the outer sleeve 16 is provided with a square groove having a square radial cross section, and the second output shaft section 15 is provided with a square shaft matched with the square groove, so that the second output shaft section 15 can be in sliding fit with the outer sleeve 16 and synchronously rotate with the outer sleeve 16.
Further, one end of the outer sleeve 16 facing the second output shaft section 15 is provided with a large-diameter section 16a, an inner sleeve 17 sleeved on the second output shaft section 15 is arranged in the large-diameter section 16a, and a clamp spring 18 used for limiting the inner sleeve 17 is arranged in the large-diameter section 16 a.
Further, the moment balance piece 21 is located below the torque output head 13, and a clamping hole is formed in the moment balance piece 21 and used for being matched with the boss 5 arranged on the device where the screw hole matched with the screw 1 to be screwed is located. And a screw hole matched with the screw 1 to be screwed is arranged in the boss.
The moment self-balancing electric wrench of this embodiment, through setting up moment self-balancing mechanism, during the use, utilize torque output shaft and moment output head to wait to twist the screw with the moment output value, realize waiting to twist screwing up and unscrewing of screw, the reverse moment effect that the shell received simultaneously passes through moment balancing pole and moment balancing piece and transmits to and on the equipment that waits to twist screw complex screw place, realize moment self-balancing, no longer need the user to hand the shell and operate, also the operator does not need to be in person's scene, specially adapted human scene difficult for reaching or the scene that has danger to human health, also the moment effect when the moment self-balancing electric wrench of this embodiment can self-balancing dismantlement or mounting screw, in order to satisfy remote operation's requirement.
The following describes in detail a specific embodiment of the method for disassembling and assembling a remote screw using the torque self-balancing electric wrench of the present embodiment:
the method for disassembling and assembling the remote screw comprises the following steps:
1) Hoisting the torque self-balancing electric wrench of the embodiment to the position right above the screw 1 to be screwed by using a power hand;
2) The moment self-balancing electric wrench is descended by utilizing a power hand to drive the moment, the moment balancing piece 21 is connected to equipment where a screw hole matched with the screw 1 to be screwed is located under the auxiliary action of a manipulator, and meanwhile, the torque output head 13 is connected to the screw 1 to be screwed;
3) And connecting a power supply, enabling the torque output shaft 12 to apply a torque action to the screw 1 to be screwed, realizing the screwing or unscrewing of the screw 1 to be screwed, and simultaneously transmitting the reverse torque applied to the shell 11 to equipment on which a screw hole matched with the screw 1 to be screwed is located by utilizing the torque balancing rod 20.
Specifically, the torque balance piece 21 is positioned right below the torque output head 13, and a clamping hole is formed in the torque balance piece 21 and used for being matched with a boss arranged on equipment where a screw hole matched with the screw 1 to be screwed is located; the screw hole matched with the screw 1 to be screwed is arranged in the boss and is coaxial with the boss, and when the torque output head 13 is matched with the screw 1 to be screwed while the clamping hole is matched with the boss. Specifically, in the present embodiment, the boss is a polygonal boss with a polygonal axial cross section, and the fastening hole is a polygonal fastening hole matched with the polygonal boss.
Note: the term "detachable" as used herein means "detachable or attachable".
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitutions or changes made by the person skilled in the art on the basis of the present invention are all within the protection scope of the present invention. The protection scope of the invention is subject to the claims.
Claims (8)
1. A torque self-balancing electric wrench comprises a wrench body (10), wherein the wrench body (10) comprises a shell (11) and a torque output shaft (12), and a power unit for applying a torque action to the torque output shaft (12) is arranged in the shell (11); the method is characterized in that:
the torque output mechanism is characterized by further comprising a torque self-balancing mechanism, wherein the torque self-balancing mechanism comprises a torque balancing rod (20), the torque balancing rod (20) is fixedly connected with the shell (11), and a torque output head (13) matched with the screw (1) to be screwed is arranged at the end part of the torque output shaft (12); the moment balance rod (20) is provided with a moment balance piece (21), and the moment balance piece (21) is used for transmitting the moment action borne by the moment balance piece to equipment where a screw hole matched with the screw (1) to be screwed is located;
the torque balance piece (21) is positioned below the torque output head (13), a clamping hole is formed in the torque balance piece (21), the clamping hole is used for being matched with a boss arranged on equipment where a screw hole matched with the screw (1) to be screwed is located, and the torque output head is matched with the screw to be screwed while the clamping hole is matched with the boss;
the torque output shaft (12) comprises a first output shaft section (14) and a second output shaft section (15), an outer sleeve (16) is arranged between the first output shaft section (14) and the second output shaft section (15), one end of the first output shaft section (14) is in transmission connection with the power unit, and the other end of the first output shaft section (14) is hinged with the outer sleeve (16); one end of the second output shaft section (15) is matched with the outer sleeve (16) in a sliding mode and synchronously rotates with the outer sleeve (16), and the other end of the second output shaft section is hinged with the torque output head (13).
2. The torque self-balancing electric wrench of claim 1, wherein: the first output shaft section (14) is hinged with the outer sleeve (16) through a first split pin (2).
3. The torque self-balancing power wrench of claim 1, wherein: the second output shaft section (15) is hinged with the torque output head (13) through a second split pin (3).
4. The torque self-balancing electric wrench of claim 1, wherein: a square groove with a square radial section is formed in the outer sleeve (16), and the second output shaft section (15) is a square shaft matched with the square groove.
5. The torque self-balancing electric wrench of claim 4, wherein: the outer sleeve (16) face the one end of second output shaft section (15) is equipped with big footpath section (16 a), be equipped with the suit in big footpath section (16 a) inner skleeve (17) on second output shaft section (15), be equipped with in big footpath section (16 a) and be used for spacingly jump ring (18) of inner skleeve (17).
6. A remote screw disassembling and assembling method is characterized in that: the method comprises the following steps:
1) Hoisting the torque self-balancing electric wrench as claimed in any one of claims 1 to 5 to the position right above the screw (1) to be screwed by using a power hand;
2) The torque self-balancing electric wrench is driven to descend by a power hand, a torque balancing piece (21) is connected to equipment where a screw hole matched with the screw (1) to be screwed is located under the auxiliary action of a manipulator, and meanwhile, a torque output head (13) is connected to the screw (1) to be screwed;
3) And connecting a power supply, enabling the torque output shaft (12) to apply a torque action to the screw (1) to be screwed, realizing the screwing or unscrewing of the screw (1) to be screwed, and simultaneously transmitting the reverse torque applied to the shell (11) to equipment where the screw hole matched with the screw (1) to be screwed by utilizing the torque balancing rod (20).
7. The remote screw assembling and disassembling method according to claim 6, wherein: the torque balance piece (21) is positioned below the torque output head (13), and a clamping hole is formed in the torque balance piece (21) and used for being matched with a boss arranged on equipment where a screw hole matched with the screw (1) to be screwed is located; and arranging a screw hole matched with the screw (1) to be screwed in the boss.
8. A remote screw attaching and detaching method as set forth in claim 7, wherein: the boss is a polygonal boss with a polygonal axial section, and the clamping hole is a polygonal clamping hole matched with the polygonal boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111210936.3A CN113814925B (en) | 2021-10-18 | 2021-10-18 | Torque self-balancing electric wrench and remote screw disassembling and assembling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111210936.3A CN113814925B (en) | 2021-10-18 | 2021-10-18 | Torque self-balancing electric wrench and remote screw disassembling and assembling method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113814925A CN113814925A (en) | 2021-12-21 |
| CN113814925B true CN113814925B (en) | 2022-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111210936.3A Active CN113814925B (en) | 2021-10-18 | 2021-10-18 | Torque self-balancing electric wrench and remote screw disassembling and assembling method |
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Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4079639A (en) * | 1975-10-08 | 1978-03-21 | Repco Limited | Torque wrench |
| CN202528114U (en) * | 2012-03-29 | 2012-11-14 | 中联重科股份有限公司 | Screwing wrench and screw mounting structure |
| CN203993688U (en) * | 2014-07-31 | 2014-12-10 | 采埃孚富奥底盘技术(长春)有限公司 | A kind of electric wrench with countertorque |
| JP2016036887A (en) * | 2014-08-08 | 2016-03-22 | 株式会社日立ビルシステム | Ratchet wrench |
| CN206717746U (en) * | 2016-12-23 | 2017-12-08 | 华北电力大学（保定） | A kind of electronic straight type screwdriver that can control screw-down torque |
| CN209364501U (en) * | 2018-11-21 | 2019-09-10 | 一汽解放汽车有限公司 | A kind of convenient pneumatic flange nut tightening device |
| CN109551413B (en) * | 2018-12-14 | 2024-04-16 | 台州创茂电动工具有限公司 | Electric torque wrench |
| CN109396817B (en) * | 2018-12-27 | 2024-08-13 | 武汉联航机电有限公司 | Screwing device |
| CN214292863U (en) * | 2021-01-28 | 2021-09-28 | 大连康展机电工程有限公司 | Hand-held electric tightening wrench |
| CN113183071B (en) * | 2021-05-11 | 2024-04-09 | 广西玉柴机器股份有限公司 | Anti-rotation clamp |
-
2021
- 2021-10-18 CN CN202111210936.3A patent/CN113814925B/en active Active
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| CN113814925A (en) | 2021-12-21 |
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