CN109746856A - One kind is electronic to determine torsional impact spanner - Google Patents
One kind is electronic to determine torsional impact spanner Download PDFInfo
- Publication number
- CN109746856A CN109746856A CN201711096030.7A CN201711096030A CN109746856A CN 109746856 A CN109746856 A CN 109746856A CN 201711096030 A CN201711096030 A CN 201711096030A CN 109746856 A CN109746856 A CN 109746856A
- Authority
- CN
- China
- Prior art keywords
- drive shaft
- shaft
- output shaft
- convex block
- electronic
- Prior art date
- 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
- 230000008878 coupling Effects 0.000 claims abstract description 25
- 238000010168 coupling process Methods 0.000 claims abstract description 25
- 238000005859 coupling reaction Methods 0.000 claims abstract description 25
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 230000007704 transition Effects 0.000 claims description 4
- 230000008901 benefit Effects 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The present invention relates to the elastic equipment technical fields of bolt, it discloses and a kind of electronic determines torsional impact spanner, including the power mechanism, shaft coupling and output precision set gradually, the power mechanism includes motor and by the motor-driven drive shaft, impact V-groove is provided in the drive shaft, ball is provided in the impact V-groove, the end of the one end of the drive shaft far from the motor is ratchet configuration, the tooth papillae of the ratchet configuration is obliquely installed towards forward rotation direction, is provided with roller between the adjacent tooth papillae of the ratchet configuration.It is provided by the invention electronic to determine torsional impact spanner, it, which is rotated in the forward direction, can determine the connection of torque fastening bolt, reverse rotation can impact fast unscrewing and remove bolt, not only meet screwing for the threaded fastener for thering is torque or axial tension to require, and working efficiency is higher when removing screw thread, can meet the growth requirement of bolt fastening technical field now.
Description
Technical field
Equipment technical field is used the present invention relates to bolt is elastic, more particularly to a kind of electronic determines torsional impact spanner.
Background technique
Existing bolt fastening or unscrew generallys use single electric impact wrench with electric wrench or electronic determine torque and pull
Hand.
There are following technological deficiencies for electric impact wrench: since it cannot accurately determine torque, it is impossible to be used in have torque or axis
It is screwed to the threaded fastener of pulling tension requirements.And existing electric fixed-torque spanner then there is: when it is used for the rotation of outmoded bolt
When demolition removes, due to get rusty or greasy filth factor influence, cause its working efficiency lower.Now, increasingly wide with the application of steel structure
The rapid development of general and national equipment manufacture, generally existing, the electronic punching of original simple function of application of high-strength bolt
Spanner or constant torque wrench are hit, has been difficult to meet the growth requirement of bolt fastening technical field.
Summary of the invention
(1) technical problems to be solved
The present invention provide it is a kind of it is electronic determine torsional impact spanner, to solve the electric impact wrench or calmly of original simple function
Torque wrench has been difficult to the technical issues of meeting the growth requirement of bolt fastening technical field.
(2) technical solution
Torsional impact spanner is determined in order to solve the above-mentioned technical problems, the present invention provides electronic, it is dynamic including what is set gradually
Force mechanisms, shaft coupling and output precision;
The power mechanism includes motor and by the motor-driven drive shaft, is provided with punching in the drive shaft
V-groove is hit, ball is provided in the impact V-groove, the end of the one end of the drive shaft far from the motor is ratchet structure
It makes, the tooth papillae of the ratchet configuration is obliquely installed towards forward rotation direction, is provided with rolling between the adjacent tooth papillae of the ratchet configuration
Column;
The output precision includes the output shaft of hollow structure, and convex block is arranged in one end of the output shaft;
The shaft coupling is hollow structure comprising drive shaft interconnecting piece and output shaft interconnecting piece, the output axis connection
Shifting block is provided on the internal perisporium in portion;
One end that the output shaft is provided with convex block is set in the periphery of the ratchet configuration of the drive shaft and forms interference
Be cooperatively connected, the drive shaft interconnecting piece of the shaft coupling be set in the drive shaft impact V-groove periphery and with the rolling
Pearl is cooperatively connected, and the output shaft interconnecting piece of the shaft coupling is set in the periphery of one end of the output shaft setting convex block, and institute
Clamping can be cooperated by stating convex block and the shifting block.
Further, the ratchet configuration includes three tooth papillaes of circumferentially spaced set.
Further, the tooth papillae includes towards the inclined inclined surface of forward rotation direction, the opposite and face with the inclined surface
To plane face inclined surface curved cambered surface face and be arranged between inclined surface and the cambered surface face, the plane face with it is described
The transition face that tilt angle is less than the inclined surface is additionally provided between inclined surface.
Further, the ratchet configuration is provided with diameter no more than the ratchet configuration away from one end of the drive shaft
Wheel shaft guiding axis.
Further, top one end of the V-groove is obliquely installed towards the drive shaft away from one end of the motor.
Further, the convex block includes circumferentially uniformly distributed two piece along the output shaft, and every piece of convex block is
Lug type;
Corresponding two convex blocks, the inner wall circumferential direction spacing of the output shaft interconnecting piece of the shaft coupling are provided with two shifting blocks, and two
The convex block is top surface internally raised substantially V-type flange, and two sides of the V-type flange are arc close to each other
Shape, two sides of the V-type flange and the convex block sideline of output shaft can mutually coincide.
Further, the output shaft is provided with bolt collar far from one end of the shaft coupling.
Further, the shaft coupling is provided with pressure spring between one end and the drive shaft of the motor.
(3) beneficial effect
Above-mentioned technical proposal of the invention have the advantages that it is provided by the invention it is electronic determine torsional impact spanner, just
The connection of torque fastening bolt can be determined to rotation, and reverse rotation can impact fast unscrewing and remove bolt, and not only meeting has torque or axis
Working efficiency is higher when screwing to the threaded fastener of pulling tension requirements, and removing screw thread, can meet bolt fastening skill now
The growth requirement in art field.
In addition to it is described above present invention solves the technical problem that, constitute technical solution technical characteristic and have this
Except advantage brought by the technical characteristic of a little technical solutions, other technical characteristics of the invention and these technical characteristic brings
Advantage will be further illustrated in conjunction with attached drawing.
Detailed description of the invention
Fig. 1 is the electronic schematic diagram for determining torsional impact spanner of the embodiment of the present invention;
Fig. 2 is the perspective view of the electronic power mechanism for determining torsional impact spanner of the embodiment of the present invention;
Fig. 3 is the perspective view of the electronic output precision for determining torsional impact spanner of the embodiment of the present invention;
Fig. 4 is the perspective view of the electronic shaft coupling for determining torsional impact spanner of the embodiment of the present invention;
Fig. 5 is the perspective view of the electronic ratchet configuration for determining torsional impact spanner of the embodiment of the present invention.
In figure: 1: power mechanism;2: shaft coupling;3: output precision;4: drive shaft;5: impact V-groove;6: ratchet configuration,
6a: inclined-plane face, 6b: plane face, 6c: transition face;7: roller;8: output shaft interconnecting piece;9: shifting block;10: drive shaft interconnecting piece,
10a: drive shaft interconnecting piece axis hole;11: output shaft, 11a: convex block, 11b: output shaft axis hole;12: sleeve;13: guiding axis.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected;It can
To be mechanical connection, it is also possible to be electrically connected;It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
In addition, in the description of the present invention, unless otherwise indicated, " multiple ", " more ", " multiple groups " be meant that two or
Two or more, " several ", " several ", " several groups " are meant that one or more.
As shown in Figure 1, it is provided in an embodiment of the present invention it is electronic determine torsional impact spanner, including the power mechanism set gradually
1, shaft coupling 2 and output precision 3.
As shown in Fig. 2, the power mechanism 1 is including motor and by the motor-driven drive shaft 4.The drive shaft
It is provided with impact V-groove 5 on 4, is provided with ball in the impact V-groove 5, the one end of the drive shaft far from the motor
End is ratchet configuration 6, and the tooth papillae of the ratchet configuration 6 is obliquely installed towards forward rotation direction, the adjacent teeth of the ratchet configuration
Roller 7 is provided between spine.As shown in figure 3, the output precision 3 includes the output shaft 11 for being provided with axis hole, the output shaft
Convex block 11a is set on the periphery wall of 11 one end, and the axis hole for defining output shaft 11 is output shaft axis hole 11b.As shown in figure 4, institute
State shaft coupling 2 be hollow structure comprising drive shaft interconnecting piece 10 and output shaft interconnecting piece 8, the output shaft interconnecting piece 8 it is interior
Shifting block 9 is provided on peripheral wall.Specific connection is as shown in Figure 1, drive shaft 4, shaft coupling 2 and output shaft 11 are coaxially disposed.Institute
State output shaft 11 be provided with convex block 11a one end be set in the drive shaft 4 ratchet configuration 6 periphery and cooperate clamping, institute
State shaft coupling 2 drive shaft interconnecting piece 10 be set in the drive shaft 4 impact V-groove 5 periphery and with the ball engagement,
And pressure spring is provided between the drive shaft on one end end face of the drive shaft interconnecting piece 10 close to motor;It is described
The output shaft interconnecting piece 8 of axis device 2 is set in the periphery that one end of convex block 11a is arranged in the output shaft 11, and the convex block 11a with
The shifting block 9 can cooperate driving.
It should be noted that roller refers to that shape is cylindrical roller.
It is appreciated that shaft coupling 2 is structure as a whole, being divided into drive shaft interconnecting piece 10 and output shaft interconnecting piece 8 is only to be
The definition for facilitating description to carry out.The convex block 11a can cooperate driving to mean with the shifting block 9, convex block 11a and shifting block
9 when can mutually limit to form driving structure namely convex block 11a and 9 clamping of shifting block, and output shaft 11 can be done together with shaft coupling 2
Step movement.
As a preferred embodiment, the convex block 11a includes circumferentially uniformly distributed two piece along the output shaft, and every piece
The convex block 11a is lug type;The inner wall of corresponding two convex blocks, the output shaft interconnecting piece 8 of the output shaft 4 is (namely defeated
In the convex block accommodating connecting cavity of shaft interconnecting piece) circumferential spacing is provided with two shifting blocks 9, and two shifting block 9 is that top is inward-facing
The substantially V-type flange of portion (inside refer to towards the axial location for being axis hole) protrusion, two sides of the V-type flange are mutually to lean on
Close arc, and two sides of the V-type flange and the convex block sideline of output shaft can mutually coincide.
It is understood that the convex block 11a of such structure can be very good to be bonded and be not easy stuck with shifting block 9, avoid
The generation for the problem of shaft coupling 2 and output shaft 11 cannot be detached from and lose percussion.
Above, the tooth papillae of the ratchet configuration 6 be obliquely installed towards forward rotation direction refer to each tooth papillae rotate forward when with
The side between roller contacted in its forward rotation direction is that ratchet can be promoted reverse away from the inclined shape of forward rotation direction
When rotation, the gap between roller and tooth papillae is larger, thus will not transmission effect power.
For the convenience of description, defining the tooth papillae towards the inclined face of forward rotation direction is inclined surface 6a, as shown in figure 5, institute
Stating tooth papillae further includes opposite with the inclined surface 6a and towards the curved cambered surface face inclined surface 6a and setting in inclined surface 6a
Plane face 6b between the cambered surface face, is additionally provided with tilt angle between the plane face 6b and the inclined surface 6a and is less than
The transition face 6c of the inclined surface.
It is appreciated that the cambered surface face of tooth papillae is bent towards inclined surface 6a namely the cambered surface face of tooth papillae is located at the arc of roller 7
The structure to match, which form the structures for being more difficult to cross over than vertical plane, to preferably limit the roller 7 in counter-rotating
Movement between adjacent tooth papillae.
It should be noted that the impact V-groove 5 is one of top one end towards the drive shaft 4 away from the motor
End is obliquely installed, as shown in Fig. 2, it can be two of the circumferential spacing setting along the drive shaft;Accordingly in order to
Preferably realize the interference fit between output shaft 11 and the ratchet configuration 6 of drive shaft 4.
The present invention is electronic to determine torsional impact spanner when drive shaft rotates in the forward direction, by the ratchet configuration 6 and roller of drive shaft 4
7 directly drive 11 output torque of output shaft, and ratchet configuration 6 can only be born by roller 7 and output shaft axis hole 11b interference fit joint
Certain torque, to achieve the purpose that determine torque.Impact V-groove 5 and rolling when 4 counter-rotating of drive shaft, by output shaft 11
Pearl drives shaft joint 2 to rotate, and under elastic force and the centrifugal force effect of pressure spring, shaft joint 2 generates axis along output shaft 11 outward
To sliding, shifting block 9 and convex block 11a in the convex block cavity of shaft joint 2 cooperate, and drive 11 output torque of output shaft;With output
The increase of torque, for shaft joint 2 under impact V-groove 5 and ball action, shaft joint 2 generates axial sliding, shifting block to motor drive direction
9 are detached from output shaft 11, while pressure spring agglomeration elasticity potential energy again.
As shown in Fig. 2, the ratchet configuration 6 includes three of circumferentially spaced set as a specific embodiment
Tooth papillae.The ratchet configuration 6 is provided with diameter away from one end of the drive shaft 4 and leads no more than the wheel shaft of the ratchet configuration
To axis 13, and guiding axis 13 is structure as a whole with ratchet shaft namely guiding axis 13 can be and be extended out by ratchet shaft.
It is understood that the number of tooth papillae can be selected according to actual needs, it is not limited to provide in embodiment
Three, other greater than three or more multiple tooth papillaes also this hair invent protection scope in.
In practical applications, the output shaft 11 connects bolt collar 12 far from one end of the shaft coupling 2.
In conclusion the electronic drive shaft 4 for determining torsional impact spanner of the present embodiment is provided with ratchet configuration 6 and impact V-type
5 two kinds of structures of slot, the tooth inside (between tooth papillae) of ratchet configuration 6 are provided with roller 7, and ratchet configuration 6 passes through roller 7 and output shaft
Axis hole 11b is interference fitted together, when the drive shaft 4 of power mechanism 1 rotates in the forward direction, can bear certain torque, that is, adjustment
Ratchet configuration 6 and roller 7 couple cooperation with output shaft axis hole 11b, can adjust output in a certain range and determine torque, it is seen then that spine
Torque is determined in output when wheel construction 6 can be used for rotating in the forward direction, for there is screwing for accurate torque requirement bolt fastener.And impact V
5 structure of type groove is used to export impulsive torque when counter-rotating, is mainly used for fast unscrewing bolt-connection, efficiently solves original electricity
Dynamic impact wrench cannot be used for screwing for the threaded fastener of torque or axial tension requirement;Meanwhile it improving existing electronic
Constant torque wrench for outmoded bolt unscrew dismounting when, due to get rusty or greasy filth factor influence cause its working efficiency is lower to ask
The electric impact wrench or constant torque wrench of topic and original simple function, have been difficult to meet the development of bolt fastening technical field
The technical issues of demand.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations;Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features;
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (8)
1. one kind is electronic to determine torsional impact spanner, it is characterised in that: including the power mechanism, shaft coupling and output set gradually
Component;
The power mechanism includes motor and by the motor-driven drive shaft, and impact V is provided in the drive shaft
Type groove is provided with ball in the impact V-groove, and the end of the one end of the drive shaft far from the motor is ratchet configuration,
The tooth papillae of the ratchet configuration is obliquely installed towards forward rotation direction, is provided with roller between the adjacent tooth papillae of the ratchet configuration;
The output precision includes the output shaft of hollow structure, and convex block is arranged in one end of the output shaft;
The shaft coupling is hollow structure comprising drive shaft interconnecting piece and output shaft interconnecting piece, the output shaft interconnecting piece
Shifting block is provided on internal perisporium;
One end that the output shaft is provided with convex block is set in the periphery of the ratchet configuration of the drive shaft and forms interference fit
Connection, the drive shaft interconnecting piece of the shaft coupling are set in the periphery of the impact V-groove of the drive shaft and match with the ball
Connection is closed, the output shaft interconnecting piece of the shaft coupling is set in the periphery of one end of the output shaft setting convex block, and described convex
Block and the shifting block can cooperate clamping.
2. electronic torsional impact spanner is determined according to claim 1, it is characterised in that: the ratchet configuration includes circumferentially
Three tooth papillaes of spaced set.
3. electronic torsional impact spanner is determined according to claim 1 or 2, it is characterised in that: the tooth papillae includes towards just
Turn the inclined inclined surface in direction, it is opposite with the inclined surface and towards the curved cambered surface face in inclined surface and be arranged in inclined surface
With the plane face between the cambered surface face, it is additionally provided with tilt angle between the plane face and the inclined surface and inclines less than described
The transition face on inclined-plane.
4. electronic torsional impact spanner is determined according to claim 1 or 2, it is characterised in that: the ratchet configuration deviates from institute
The one end for stating drive shaft is provided with guiding axis of the diameter no more than the wheel shaft of the ratchet configuration.
5. electronic torsional impact spanner is determined according to claim 1, it is characterised in that: one end face of top of the V-groove
It is obliquely installed to the drive shaft away from one end of the motor.
6. electronic torsional impact spanner is determined according to claim 1, it is characterised in that: the convex block includes along the output
Circumferentially uniformly distributed two piece of axis, and every piece of convex block is lug type;
Corresponding two convex blocks, the inner wall circumferential direction spacing of the output shaft interconnecting piece of the shaft coupling is provided with two shifting blocks, described in two
Convex block is top surface internally raised substantially V-type flange, and two sides of the V-type flange are arc close to each other, institute
The convex block sideline on two sides and output shaft of stating V-type flange can mutually coincide.
7. electronic torsional impact spanner is determined according to claim 1, it is characterised in that: the output shaft is far from the shaft coupling
One end of device is provided with bolt collar.
8. electronic torsional impact spanner is determined according to claim 1, it is characterised in that: the shaft coupling is close to the motor
One end and the drive shaft between be provided with pressure spring.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711096030.7A CN109746856A (en) | 2017-11-06 | 2017-11-06 | One kind is electronic to determine torsional impact spanner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711096030.7A CN109746856A (en) | 2017-11-06 | 2017-11-06 | One kind is electronic to determine torsional impact spanner |
Publications (1)
Publication Number | Publication Date |
---|---|
CN109746856A true CN109746856A (en) | 2019-05-14 |
Family
ID=66401610
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201711096030.7A Pending CN109746856A (en) | 2017-11-06 | 2017-11-06 | One kind is electronic to determine torsional impact spanner |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN109746856A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113090807A (en) * | 2021-04-07 | 2021-07-09 | 国网新源水电有限公司富春江水力发电厂 | Hydropower station valve pneumatic operation device and operation method thereof |
CN113246071A (en) * | 2021-05-26 | 2021-08-13 | 兰州交通大学 | Impact assembly suitable for forward static torsion reverse impact screwing operation |
Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4838134A (en) * | 1988-06-09 | 1989-06-13 | Ruland Manufacturing Company, Inc. | Torque wrench |
JPH0439450A (en) * | 1990-06-01 | 1992-02-10 | Koyo Seiko Co Ltd | Planet roller type power transmitting device |
US5782570A (en) * | 1995-10-23 | 1998-07-21 | Chicago Pneumatic Tool Company | Alignment of attachment(s) mounted on a power tool |
JP2008284687A (en) * | 2008-07-17 | 2008-11-27 | Katsuyuki Totsu | Fixed-torque type screwdriver |
CN201419373Y (en) * | 2009-05-14 | 2010-03-10 | 沈阳飞机工业(集团)有限公司 | Fixed torque screwing device |
JP2010082751A (en) * | 2008-09-30 | 2010-04-15 | Hitachi Koki Co Ltd | Fastening tool with torque detection device |
CN101797735A (en) * | 2010-03-16 | 2010-08-11 | 王平飞 | Power torque wrench |
US20120111592A1 (en) * | 2010-11-04 | 2012-05-10 | Limberg Kurt P | Impact tool with adjustable clutch |
GB201406093D0 (en) * | 2014-04-04 | 2014-05-21 | Hire Torque Ltd | Torque wrench with reaction arm |
US20140157961A1 (en) * | 2012-07-02 | 2014-06-12 | Chervon (Hk) Limited | Impact ratchet wrench |
CN207373059U (en) * | 2017-11-06 | 2018-05-18 | 北京安沃科技有限公司 | One kind is electronic to determine torsional impact spanner |
US20190003513A1 (en) * | 2016-03-02 | 2019-01-03 | HYTORC Division Unex Corporation | Apparatus for tightening threaded fasteners |
US20190283222A1 (en) * | 2015-04-28 | 2019-09-19 | Milwaukee Electric Tool Corporation | Precision torque screwdriver |
-
2017
- 2017-11-06 CN CN201711096030.7A patent/CN109746856A/en active Pending
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4838134A (en) * | 1988-06-09 | 1989-06-13 | Ruland Manufacturing Company, Inc. | Torque wrench |
JPH0439450A (en) * | 1990-06-01 | 1992-02-10 | Koyo Seiko Co Ltd | Planet roller type power transmitting device |
US5782570A (en) * | 1995-10-23 | 1998-07-21 | Chicago Pneumatic Tool Company | Alignment of attachment(s) mounted on a power tool |
JP2008284687A (en) * | 2008-07-17 | 2008-11-27 | Katsuyuki Totsu | Fixed-torque type screwdriver |
JP2010082751A (en) * | 2008-09-30 | 2010-04-15 | Hitachi Koki Co Ltd | Fastening tool with torque detection device |
CN201419373Y (en) * | 2009-05-14 | 2010-03-10 | 沈阳飞机工业(集团)有限公司 | Fixed torque screwing device |
CN101797735A (en) * | 2010-03-16 | 2010-08-11 | 王平飞 | Power torque wrench |
US20120111592A1 (en) * | 2010-11-04 | 2012-05-10 | Limberg Kurt P | Impact tool with adjustable clutch |
US20140157961A1 (en) * | 2012-07-02 | 2014-06-12 | Chervon (Hk) Limited | Impact ratchet wrench |
GB201406093D0 (en) * | 2014-04-04 | 2014-05-21 | Hire Torque Ltd | Torque wrench with reaction arm |
US20190283222A1 (en) * | 2015-04-28 | 2019-09-19 | Milwaukee Electric Tool Corporation | Precision torque screwdriver |
US20190003513A1 (en) * | 2016-03-02 | 2019-01-03 | HYTORC Division Unex Corporation | Apparatus for tightening threaded fasteners |
CN207373059U (en) * | 2017-11-06 | 2018-05-18 | 北京安沃科技有限公司 | One kind is electronic to determine torsional impact spanner |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113090807A (en) * | 2021-04-07 | 2021-07-09 | 国网新源水电有限公司富春江水力发电厂 | Hydropower station valve pneumatic operation device and operation method thereof |
CN113246071A (en) * | 2021-05-26 | 2021-08-13 | 兰州交通大学 | Impact assembly suitable for forward static torsion reverse impact screwing operation |
CN113246071B (en) * | 2021-05-26 | 2022-09-06 | 兰州交通大学 | Impact assembly suitable for forward static torsion reverse impact screwing operation |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8360701B2 (en) | Threaded fastener | |
CN109551427B (en) | Dismounting device for threaded connection end cover | |
CN109746856A (en) | One kind is electronic to determine torsional impact spanner | |
CN108980179A (en) | One kind is only loosened the screw a little | |
CN111577744A (en) | Never-loosening self-tightening bolt and nut sleeve system | |
CN210178729U (en) | Bolt and nut assembly capable of preventing loosening | |
CN207373059U (en) | One kind is electronic to determine torsional impact spanner | |
CN114310790B (en) | Assembling and disassembling device and method for interference thread anti-loosening screw sleeve | |
CN205852678U (en) | Engine flywheel assembling auxiliary device | |
CN212838902U (en) | Self-tightening bolt and nut sleeve system | |
CN103161814A (en) | Pre-tightening-force-adjustable anti-loosening rotating shaft mechanism | |
CN110170948B (en) | Vibration type universal connector for socket wrench | |
CN213235766U (en) | Locking fastening assembly that moves with bearing structure | |
CN108591221B (en) | Anti-loosening threaded fastening assembly and threaded fastener locking ring | |
CN212838893U (en) | Design type positive and negative screw opposite-jacking nut self-locking system based on dimension of fastened piece | |
CN209923703U (en) | Novel torque wrench | |
CN210414331U (en) | Torsion screwdriver | |
CN208503416U (en) | A kind of belt sheave structure realized blind-mate and wearing clearance can be made up | |
CN211820309U (en) | Anti-loosening bolt | |
CN109236195B (en) | Screw head | |
CN112709767A (en) | Torque adjusting mechanism and electric screwdriver | |
CN112780657A (en) | Double-thread anti-loose bolt | |
CN203665451U (en) | Threaded insert installation device | |
CN213331958U (en) | Hexagonal knob external thread screw | |
CN214367160U (en) | Bolt |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190514 |
|
WD01 | Invention patent application deemed withdrawn after publication |