CN106392958B - The double end torque spanner and torque measuring method that can be used separately - Google Patents
The double end torque spanner and torque measuring method that can be used separately Download PDFInfo
- Publication number
- CN106392958B CN106392958B CN201611034998.2A CN201611034998A CN106392958B CN 106392958 B CN106392958 B CN 106392958B CN 201611034998 A CN201611034998 A CN 201611034998A CN 106392958 B CN106392958 B CN 106392958B
- Authority
- CN
- China
- Prior art keywords
- strain
- used separately
- wrench body
- measuring bridge
- double end
- 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.)
- Active
Links
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
- B25B13/00—Spanners; Wrenches
- B25B13/02—Spanners; Wrenches with rigid jaws
- B25B13/06—Spanners; Wrenches with rigid jaws of socket type
-
- 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
- B25B13/00—Spanners; Wrenches
- B25B13/56—Spanner sets
-
- 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
- B25B23/142—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers
- B25B23/1422—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters
- B25B23/1425—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters by electrical means
-
- 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
- B25B23/16—Handles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The invention discloses a kind of double end torque spanners that can be used separately, including wrench body and signal processing display device, further include the first driving end for being set to described wrench body one end, be set to the second driving end of the wrench body other end and be set on wrench body and be the first strain-measuring bridge and the second strain-measuring bridge being electrically connected with the signal processing display device, the first strain-measuring bridge and the second strain-measuring bridge are used for while detecting screw-down torque and each other compensator bridge.The double end torque spanner that the present invention can be used separately can be used with double end dynamometry, and it is convenient to operate, and integrate the convenience and torque spanner Torque Control function of existing common wrench, and common wrench and torque spanner can be replaced to use；And by the first, second strain-measuring bridge of setting, the short influence changed with operating side of the brachium that can not be stressed with intelligent recognition arm of force length and operating side, testing result, moment inspecting precision height.The invention also discloses a kind of torque measuring methods.
Description
Technical field
The invention belongs to torque spanner technical fields, specifically, the present invention relates to a kind of double end power that can be used separately
Square spanner and torque measuring method.
Background technique
Existing torque spanner length and outer diameter are larger, can not use in a smaller space, and can only single head measurement,
Accuracy of measurement is mostly influenced by torque arm length, compared with common non-torque spanner, there are larger gap in volume, convenience,
There are manifest function differentiations with common wrench in actual use, common wrench can not be replaced to carry out ongoing operations, be not easy to torque
Desired popularization is controlled, can not especially be used in the smaller space such as aircraft, automotive interior.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, the present invention one kind is provided can
Separate the double end torque spanner and torque measuring method used, it is therefore an objective to keep with the volume of common wrench, shape phase nearby
It putting, double end measuring moment uses, and the measurement result that double end uses neither is influenced by point of application variation, property easy to use is improved,
Instead of common wrench ongoing operations, meet the Torque Control of terminal operation in smaller space.
To achieve the goals above, the technical scheme adopted by the invention is as follows: the double end torque spanner that can be used separately, including
Wrench body and signal processing display device further include the first driving end for being set to described wrench body one end, are set to wrench body
It second driving end of the other end and is set on wrench body and is that first be electrically connected answers with the signal processing display device
Become measuring bridge and the second strain-measuring bridge, the first strain-measuring bridge and the second strain-measuring bridge are for exporting strain letter
Number and compensator bridge each other.
First strain-measuring bridge is between second strain-measuring bridge and first driving end, and second
Strain-measuring bridge is between the first strain-measuring bridge and second driving end.
First strain-measuring bridge includes the first resistor foil gauge being set on the wrench body and first resistor
Foil gauge is arranged two, and two first resistor foil gauges are connected by half-bridge.
The wrench body at least has the first mounting surface and the second mounting surface and the first mounting surface and the second mounting surface are phase
To setting, two first resistor foil gauges are respectively arranged on the first mounting surface and the second mounting surface.
Two first resistor foil gauges are positioned opposite on the wrench body.
Second strain-measuring bridge includes the second resistance foil gauge being set on the wrench body and second resistance
Foil gauge is arranged two, and two second resistance foil gauges are connected by half-bridge.
The wrench body at least has the first mounting surface and the second mounting surface and the first mounting surface and the second mounting surface are phase
To setting, two second resistance foil gauges are respectively arranged on the first mounting surface and the second mounting surface.
Two second resistance foil gauges are positioned opposite on the wrench body.
The double end torque spanner that can be used separately further includes connecting with the wrench body and for covering described the
The cover board or sheath of one strain-measuring bridge and second strain-measuring bridge.
The cover board is to be welded to connect or connect by fastener with the wrench body.
The signal processing display device and the wrench body are detachable connection.
The signal processing display device includes electronical display component and connect with electronical display component and by electronical display
Component is locked in the mounting assembly on the wrench body.
The mounting assembly includes the magnetic key operated lock mandrel connecting with the electronical display component and is sheathed on magnetic key operated lock mandrel
Above and for providing the magnet of coupling mechanism force, the wrench body has the location hole for allowing magnetic key operated lock mandrel to be embedded in.
The magnetic key operated lock mandrel is to be threadedly coupled with the electronical display component.
The magnetic key operated lock mandrel includes an elastically deformable and the tight lock part that locks the axial position of magnetic key operated lock mandrel.
The side wall of the tight lock part be equipped with multiple open slots and multiple open slots be it is circumferentially distributed so that tight lock part
Side wall is separated into multistage.
The tight lock part is openable and closable conical structure, and the largest outer diameter of tight lock part is greater than the straight of the location hole
Diameter.
The magnetic key operated lock mandrel further includes the interconnecting piece connecting with the electronical display component.
The interconnecting piece is to be threadedly coupled with the electronical display component.
The interconnecting piece and the tight lock part are connected, and the magnet is sheathed on interconnecting piece.
The mounting assembly setting is multiple.
The signal processing display device further include be set on the electronical display component and in electronical display component
Circuit board electrical connection the first connector, the first connector and first strain-measuring bridge and second strain measurement
Electric bridge is electrical connection.
First strain-measuring bridge and second strain-measuring bridge and be set on the wrench body and with institute
Stating the second connector that the first connector is sphere-contact is electrical connection.
The double end torque spanner that can be used separately further includes being sheathed on the wrench body and in the letter
Number processing display device and wrench body are dismantled separate after cover the protection cap of second connector.
If the output strain signal of first strain-measuring bridge is ε 1, if the output of second strain-measuring bridge
Strain signal be ε 2；When with the first driving end tightening fastener parts, ε 1 is greater than ε 2, screw-down torque M1=K11* ε 1-K12* ε 2,
K11=E*I* (L1+L0)/L0, K12=E*I*L1/L0；When with the second driving end tightening fastener parts, ε 2 is greater than ε 1, screwing force
Square M2=K21* ε 2-K22* ε 1, K21=E*I* (L2+L0)/L0, K22=E*I*L2/L0.
If first strain-measuring bridge is L1 at a distance from the centroidal axis of first driving end, if described second
Strain-measuring bridge is L2 at a distance from the centroidal axis of second driving end, as L1=L2, K11=K21, K12=
K22。
The structure of first driving end is different from second driving end.
The structure of first driving end is identical as second driving end.
The wrench body is staight shank or curved handle.
First driving end is opened wrench head, plum blossom closed-end spanner head, plum blossom opened wrench head, allen wrench
Head, socket head or the driving end with ratchet mechanism.
Second driving end is opened wrench head, plum blossom closed-end spanner head, plum blossom opened wrench head, allen wrench
Head, socket head or the driving end with ratchet mechanism.
The double end torque spanner that can be used separately further include for the signal processing display device with it is described
Wrench body disassembly separation after with the signal processing display device and first, second strain-measuring bridge be electrically connected it is remote
Away from attachment device.
The long distance attachment device includes the third connector connecting with first, second strain-measuring bridge and institute
The conducting wire stating the 4th connector of signal processing display device connection and being connect with third connector and the 4th connector.
The present invention also provides a kind of torque measuring methods, using above-mentioned double end torque spanner, are pulled when measurement by first
At hand or the second driving end tightening fastener parts, screwing force is detected by the first strain-measuring bridge and the second strain-measuring bridge simultaneously
Square simultaneously exports strain signal to signal processing display device, and shows screw-down torque by signal processing display device.
First strain-measuring bridge and second strain-measuring bridge compensator bridge each other, to correct force point
Measurement error caused by variation is set, if the output strain signal of first strain-measuring bridge is ε 1, if second strain
The strain signal of the output of measuring bridge is ε 2；In measurement process, when with the first driving end tightening fastener parts, ε 1 is greater than ε
2, screw-down torque M1=K11* ε 1-K12* ε 2, K11=E*I* (L1+L0)/L0, K12=E*I*L1/L0；When with the second driving end
When tightening fastener parts, ε 2 is greater than ε 1, screw-down torque M2=K21* ε 2-K22* ε 1, K21=E*I* (L2+L0)/L0, K22=E*I*
L2/L0。
If first strain-measuring bridge is L1 at a distance from the centroidal axis of first driving end, if described second
Strain-measuring bridge is L2 at a distance from the centroidal axis of second driving end, as L1=L2, K11=K21, K12=
K22。
The double end torque spanner that the present invention can be used separately, has the advantages that
(1) spanner is small in size, and appearance, size are close with common double (end) wrench, uses convenient for small space, improves use
Convenience；
(2) spanner double end measuring moment uses, and it is convenient to operate, and collects the convenience and torque spanner torque control of existing common wrench
Function and one processed can replace common wrench and torque spanner to use, the popularization required convenient for Torque Control；
(3) signal processing display device can be used separately with wrench body, and a signal processing display device can meet a full set
Wrench torque measurement needs, and reduces equipment cost, reduces operation field tool quantity；
It (4) can be with intelligent recognition force side and compensation through comparison operation by the first, second strain-measuring bridge of setting
Arm of force length influences, and testing result does not stress the influence that brachium is short and force side changes, and moment inspecting precision is high.
Detailed description of the invention
This specification includes the following drawings, and shown content is respectively:
Fig. 1 is the main view of double end torque spanner of the present invention；
Fig. 2 is the top view of double end torque spanner of the present invention；
Fig. 3 is the structural schematic diagram of wrench body；
Fig. 4 is the structural schematic diagram of signal processing display device；
Fig. 5 is the structural schematic diagram of the mounting assembly of signal processing display device；
Fig. 6 is the side view of protection cap；
Fig. 7 is status diagram when protection cap covers connector；
Fig. 8 is the structural schematic diagram of long distance attachment device；
Fig. 9 is the structural schematic diagram of third connector；
Figure 10 is the structural schematic diagram of the mounting assembly of third connector；
Figure 11 is the structural schematic diagram of the 4th connector；
Figure 12 is the structural schematic diagram of magnetic key operated lock mandrel；
Figure 13 is the enlarged drawing of signal processing display device and wrench body or third connector and wrench body junction；
Figure 14 is the schematic diagram of signal processing display device；
Figure 15 is the signal processing flow figure of signal processing display device；
In the figure, it is marked as the 1, first driving end；2, the second driving end；3, wrench body；31, location hole；32, the first accommodating
Hole；33, the second accommodating hole；34, third accommodating hole；4, signal processing display device；41, electronical display component；42, the first connection
Device；43, magnetic key operated lock mandrel；431, tight lock part；432, interconnecting piece；433, open slot；434, limiting section；435, major diameter section；436,
Path section；44, magnet；5, first resistor foil gauge；6, second resistance foil gauge；7, the second connector；8, protection cap；9, third
Connector；91, pedestal；92, magnetic key operated lock mandrel；921, tight lock part；922, interconnecting piece；923, open slot；924, limiting section；925,
Major diameter section；926, path section；93, magnet；10, cover board；11, the 4th connector；111, pedestal；112, conductive to play needle；113, pacify
Fill hole；12, conducting wire.
Specific embodiment
Below against attached drawing, by the description of the embodiment, making to a specific embodiment of the invention further details of
Explanation, it is therefore an objective to those skilled in the art be helped to have more complete, accurate and deep reason to design of the invention, technical solution
Solution, and facilitate its implementation.
As depicted in figs. 1 and 2, the present invention provides a kind of double end torque spanners that can be used separately, and main includes being used for
The wrench body of tightening fastener parts and signal processing display device for showing screw-down torque.Wrench body include wrench body 3,
It is set to first driving end 1 of 3 one end of wrench body, the second driving end 2 of 3 other end of wrench body is set to and is set to spanner
It is the first strain-measuring bridge and the second strain-measuring bridge being electrically connected on body 3 and with signal processing display device, first answers
Become measuring bridge and the second strain-measuring bridge is used for while detecting screw-down torque, the first strain-measuring bridge and the second strain are surveyed
Amount electric bridge simultaneously exports strain signal to signal processing display device simultaneously.First strain-measuring bridge and the second strain-measuring bridge
And compensator bridge each other, i.e., when being fastened with the first driving end 1 to fastener, the second strain-measuring bridge is strained to first
Measuring bridge compensates, and when being fastened with the second driving end 2 to fastener, the first strain-measuring bridge is strained to second
Measuring bridge compensates.
Specifically, as depicted in figs. 1 and 2, the first driving end 1 and the second driving end 2 are used to tightening fastener parts, first
Between the second strain-measuring bridge and the first driving end 1, the second strain-measuring bridge is in first and answers strain-measuring bridge
Become between measuring bridge and the second driving end 2.First strain-measuring bridge and the second strain-measuring bridge are to utilize stress change principle,
Carry out torgue measurement.
As shown in figure 3, the first strain-measuring bridge includes the first resistor foil gauge 5 and first being set on wrench body 3
Resistance strain gage 5 is preferably provided with two, and two first resistor foil gauges 5 are positioned opposite, two first resistors on wrench body 3
Foil gauge 5 is installed in 3 width direction of wrench body on two side planes and indulges plane phase with the center in 3 width plane direction of wrench body
It is connected to arrangement, two second resistance foil gauges 6 and by half-bridge.
As shown in figure 3, the second strain-measuring bridge includes the second resistance foil gauge 6 and second being set on wrench body 3
Resistance strain gage 6 is preferably provided with two, and two second resistance foil gauges 6 are positioned opposite, two second resistances on wrench body 3
Foil gauge 6 is installed in 3 width direction of wrench body on two side planes and indulges plane phase with the center in 3 width plane direction of wrench body
It is connected to arrangement, two second resistance foil gauges 6 and by half-bridge.
As shown in figure 3, wrench body 3 has the first mounting surface and the second mounting surface, the first mounting surface and the second mounting surface are
It is oppositely arranged and symmetrical for two in the width direction of wrench body 3 for parallel plane, the first mounting surface and the second mounting surface
Side plane or two groups symmetrical, every group of two discontinuous side planes, be provided on the first mounting surface and the second mounting surface
One first resistor foil gauge 5 and a second resistance foil gauge 6.This design structure is simple, occupies little space, can be common
Plane machining is completed on double (end) wrench, arranges foil gauge.
As shown in figure 3, during first resistor foil gauge 5 and second resistance foil gauge 6 be set on 3 length direction of wrench body
At portion position, first resistor foil gauge 5 and second resistance foil gauge 6 are preferably bonding connection with wrench body 3.
As shown in figure 3, wrench body further includes connecting with wrench body 3 and for covering the first strain-measuring bridge and second
The cover board 10 of strain-measuring bridge.Cover board 10 is arranged two and two cover boards 10 connect in the side of wrench body 3 and wrench body 3 respectively
It connects, the cover board 10 positioned at each side of wrench body 3 is respectively used to the first resistor that will be set on the first mounting surface and the second mounting surface
Foil gauge 5 and second resistance foil gauge 6 cover in, so that foil gauge is protected.Preferably, cover board 10 and wrench body 3
To be welded to connect or being fixedly connected by screw.
As shown in Figures 2 and 3, the first driving end 1 and the second driving end 2 are respectively provided with a hole or opening or outer-hexagonal
Axis, to engage various fasteners, such as bolt.Double (end) wrench using when need to rotate, therefore the first driving end 1 and the second driving end
Hole on 2 all has centroidal axis.Wrench body 3 can have diversified forms, for example staight shank or curved handle.First driving end 1 and
The shape of two driving ends 2 may be the same or different.First driving end 1 and the second driving end 2 can have diversified forms,
For opened wrench head, plum blossom closed-end spanner head, plum blossom opened wrench head, internal hexagonal wrench head, socket head or can have
The driving end of ratchet mechanism, so as to by the first driving end 1 of any one shape and the second spanner of any one shape
First 2 are combined (such as openings at two ends, double end plum blossom, one end plum blossom open at one end, an end ratchet open at one end, one with wrench body 3
One end ratchet of plum blossom, double end ratchet are held, one end sleeve is open at one end, the combining forms such as hexagonal in double end), a variety of shapes can be formed
The wrench body of shape is suitable for the fastener of variety classes and specification.
Preferably, middle position of the signal processing display device on 3 length direction of wrench body and wrench body 3 connect
It connects, signal processing display device and wrench body 3 and be detachable connection.Due to passing through the first driving end 1 and the second driving end 2
Selection combination is carried out, the structure of wrench body can be made to can have diversified forms, and signal processing display device is arranged to
It is detachable connection with wrench body, signal processing display device can be separated with wrench body, can pass through the same letter
Number processing display device is adapted to various forms of wrench bodies, to only need a signal processing display device that can meet a full set
Wrench torque measurement needs, and reduces equipment cost, reduces operation field tool quantity, avoids live common wrench and power
The replacement operation of square spanner and torque spanner frequently replace the trouble of driving end.
As shown in figure 4, signal processing display device include electronical display component 41 and connect with electronical display component 41 and
Electronical display component 41 is locked in the mounting assembly on wrench body 3.Electronical display component 41 and the first strain-measuring bridge and
Second strain-measuring bridge is electrical connection, and electronical display component 41 is received by the first strain-measuring bridge and the second strain measurement electricity
The strain signal of bridge output is simultaneously handled signal, and screw-down torque is calculated, and electronical display component 41 has for showing
The display screen of screw-down torque.
As shown in Figure 4 and Figure 5, preferably, mounting assembly includes the magnetic locking connecting with electronical display component 41
It axis 43 and is sheathed on magnetic key operated lock mandrel 43 and for providing the magnet 44 of coupling mechanism force, wrench body 3, which has, allows magnetic key operated lock mandrel 43
The location hole 31 and location hole 31 of insertion are the circular hole being set on the side of wrench body 3.Magnetic key operated lock mandrel 43 is used for electronics
Display component 41 is locked on wrench body 3, and magnetic key operated lock mandrel 43 and wrench body 3 are plug connection, consequently facilitating electronical display group
Part 41 is separated with the assembly or disassembly of wrench body 3.
As depicted in figure 5 and figure 12, magnetic key operated lock mandrel 43 includes an elastically deformable and the axial direction for making magnetic key operated lock mandrel 43
The tight lock part 431 and an interconnecting piece 432 being fixedly connected with electronical display component 41, magnet 44 of position locking are sheathed on connection
In portion 432 and interconnecting piece 432 is fixedly connected with tight lock part 431.Interconnecting piece 432 and electronical display component 41 are preferably that screw thread connects
It connects, the threaded hole for allowing interconnecting piece 432 to be inserted into accordingly is equipped on electronical display component 41, interconnecting piece 432 is cylindrical structure, even
The outer surface of socket part 432 is equipped with external screw thread.Tight lock part 431 is preferably conical structure, tight lock part 431 have bigger diameter end and
One miner diameter end, the overall diameter of bigger diameter end are greater than the overall diameter of miner diameter end and pass through circular conical surface mistake between bigger diameter end and miner diameter end
It crosses, the overall diameter at the bigger diameter end of tight lock part 431 is greater than external screw thread on location hole 31 and interconnecting piece 432 set on wrench body 3
Diameter and interconnecting piece 432 on externally threaded diameter be less than the diameter of location hole 31 so that tight lock part 431 can be kept in fixed
State outside the hole 31 of position, tight lock part 431 are acted on by own resilient, and tight lock part 431 and the frictional force of hole inner wall determine lock shaft
Position is in the hole of wrench body 3, so as to play the role of axial limiting.
As depicted in figure 5 and figure 12, preferably, tight lock part 431 is structure open at one end and inner hollow, tight lock part
431 open end is miner diameter end, and tight lock part 431 has elastic deformability, can be selectively performed contraction radially
With loosen.The side wall of tight lock part 431 is equipped with multiple open slots 433 and multiple open slots 433 to be uniformly distributed circumferentially, so that
The side wall of tight lock part 431 is separated into multistage, and the tight lock part 431 of formation is in openable and closable structure radially.Open slot 433 is simultaneously
To start to extend on the side wall of limiting section 434 on the open end end face of tight lock part 431, multiple open slots 433 are in tight lock part
To be uniformly distributed circumferentially on 431 side wall, on the outside under extruding force effect, the various pieces of 431 side wall of tight lock part can court
It deflecting inwardly, tight lock part 431 is shunk, so that tight lock part 431 can pass through location hole 31 set on wrench body 3, into
And it can extract or be inserted into from location hole 31 easily and be installed.
As depicted in figure 5 and figure 12, preferably, magnetic key operated lock mandrel 43 includes one and interconnecting piece 432 and tight lock part 431
The limiting section 434 and limiting section 434 being fixedly connected are presented axially between interconnecting piece 432 and tight lock part 431, limiting section 434
For matching magnet 44 of the gripping sleeve on interconnecting piece 432 with electronical display component 41.Limiting section 434 is cylindrical knot
One end of structure, limiting section 434 is connect with one end of interconnecting piece 432, and the other end connect with the bigger diameter end of tight lock part 431 and passes through circle
Conical surface transition, i.e. interconnecting piece 432, limiting section 434 and tight lock part 431 are coaxially to be sequentially connected and form overall structure.Limiting section
434 form the step surface limited to magnet 44 with interconnecting piece 432, and the diameter of limiting section 434 is set no more than on wrench body 3 to be determined
The diameter in position hole 31, limiting section 434 may be in location hole 31, so that magnet 44 and tight lock part 431 are located at location hole
31 side.
As depicted in figure 5 and figure 12, preferably, limiting section 434 includes the major diameter section 435 and path section 436 being connected,
Major diameter section 435 and path section 436 are cylindrical structure, and major diameter section 435 is between path section 436 and interconnecting piece 432 and major diameter
Section 435 is to be fixedly and coaxially connected with path section 436 and interconnecting piece 432, and path section 436 is between bigger diameter end and tight lock part 431
And it is connect with tight lock part 431.The diameter of major diameter section 435 be greater than interconnecting piece 432 and path section 436 diameter, path section 436 it is straight
Diameter is less than the diameter of the bigger diameter end of tight lock part 431, and the diameter of path section 436 is no more than location hole 31 set on wrench body 3
Diameter, path section 436 may be in location hole 31.Path section 436 is structure open at one end and inner hollow, tight lock part
Open slot 433 on 431 extends on the side wall of path section 436 of limiting section 434, equally separates the side wall of path section 436
At multistage.
As shown in figure 5, magnet 44 is sheathed on interconnecting piece 432 and for adsorbing wrench body 3, magnet 44 is preferably circular ring shape
There is at the center of magnet 44 structure the diameter of the centre bore and the centre bore that allow interconnecting piece 432 to pass through to be less than limiting section 434
Diameter, the diameter of centre bore are simultaneously greater than the externally threaded diameter of interconnecting piece 432 and are less than the straight of the major diameter section 435 of limiting section 434
Diameter, the overall diameter of magnet 44 are greater than the diameter of location hole 31 set on wrench body 3.In magnetic key operated lock mandrel 43 and electronical display group
After part 41 is fixedly connected, 44 sets of magnet on the interconnecting piece 432 of magnetic key operated lock mandrel 43 and by the major diameter section 435 of limiting section 434 with
The shell of electronical display component 41 clamps.
Preferably, mounting assembly setting is multiple, multiple mounting assemblies are arranged along the length direction of wrench body 3,
The equal location hole 31 of mounting assembly quantity is accordingly set on wrench body 3, each mounting assembly is inserted into a positioning respectively
In hole 31.
When being assembled electronical display component 41 and wrench body, electronical display component 41 is first placed on wrench body
It 3 side and is aligned the threaded hole on electronical display component 41 with the location hole 31 on wrench body 3, then will firmly be arranged with
From the other side of wrench body 3 insertion location hole 31, the tight lock part 431 of magnetic key operated lock mandrel is passing through the magnetic key operated lock mandrel of magnet 44
It can be shunk because bearing extruding force during location hole 31, until after tight lock part 431 is pierced by location hole 31 completely, locking
Portion 431 can revert to open configuration by own resilient, while the magnet 44 being sheathed on magnetic key operated lock mandrel can be inhaled by magnetic force
It is attached on wrench body 3, magnet 44 and then offer coupling mechanism force, so as to which electronical display component 41 is locked on wrench body 3, and
Anti-loosing effect can be played, reliable lock is improved.
As shown in figure 13, the location hole 31 for allowing magnetic key operated lock mandrel to be inserted into, the first accommodating hole 32 and second are equipped in wrench body 3
Accommodating hole 33 and the third accommodating hole 34 for allowing magnet 44 to be inserted into, the first accommodating hole 32, location hole 31, the second accommodating hole 33 and the
Three accommodating holes 34 set gradually for the thickness direction along wrench body 3, and third accommodating hole 34 is formed on the side of wrench body 3 and opened
Mouthful.First accommodating hole 32, location hole 31, the second accommodating hole 33 and third accommodating hole 34 are circular hole and four circular holes are coaxially to set
It sets, the first accommodating hole 32 is used to accommodate the path section 436 of limiting section 434 for accommodating tight lock part 431, location hole 31, and second holds
It sets hole 33 and is used to accommodate magnet 44 for accommodating the major diameter section 435 of limiting section 434, third accommodating hole 34, the first accommodating hole 32
Diameter is not less than the largest outer diameter of tight lock part 431, and the diameter of the second accommodating hole 33 is not less than the diameter of major diameter section 435, third
The diameter of accommodating hole 34 is not less than the overall diameter of magnet 44.
As shown in figure 4, signal processing display device further includes being fixedly installed on electronical display component 41 and and electronic display
Show that the circuit board in component 41 is the first connector 42 of electrical connection, the first strain-measuring bridge and the second strain-measuring bridge with
It is fixedly installed on wrench body 3 and is to be electrically connected with the second connector 7 that the first connector 42 is sphere-contact, the second connector
7 between first resistor foil gauge 5 and second resistance foil gauge 6.First connector 42 and the second connector 7 match, the
A connector 42 is located between two mounting assemblies, and the second connector 7 is located between two location holes on wrench body 3, and first
Connector 42 is preferably conductive bullet needle male seat, and the second connector 7 is preferably that conduction plays needle base, and the first connector 42 passes through conducting wire
It is connect with the circuit board in electronical display component 41, the second connector 7 passes through conducting wire and first resistor foil gauge 5 and second resistance
Foil gauge 6 connects.First connector 42 is electrically connected with the second connector 7 by sphere-contact formation, correspondingly, the first connector
Bulb, the spherical female that the conductive end setting for playing needle of the second connector 7 allows bulb to be embedded in is arranged in the 42 conductive end for playing needle
Slot, alternatively, bulb, the conductive end setting for playing needle of the first connector 42 is arranged in the conductive end for playing needle of the second connector 7
The spherical groove for allowing bulb to be embedded in.
As shown in Fig. 1, Fig. 6 and Fig. 7, wrench body further includes being sheathed on wrench body 3 and for showing in signal processing
Device covers the protection cap 8 of the second connector 7 after separating with the disassembly of wrench body 3, made with playing soiling protective to the second connector 7
With.Protection cap 8 is preferably trench structure, and lower surface is pasted with dust-proof cushion, and 8 top of protection cap is formed with 2 spherical arc shape protrusions inside,
By the elasticity of protection cap 8 itself, spherical arc shape protrusion is stuck in hole set on the side wall of wrench body 3, plays axial direction to protection cap 8
Positioning action.
As shown in figure 8, the double end torque spanner that can be used separately of the invention further includes filling for showing in signal processing
Set that separate afterwards be the long distance being electrically connected with signal processing display device and the first, second strain-measuring bridge with the disassembly of wrench body 3
Attachment device, long distance attachment device receive the strain signal exported by the first strain-measuring bridge and the second strain-measuring bridge simultaneously
Signal processing display device is transmitted signals to, so as to realize closely display screw-down torque.The long distance attachment device packet
Include the third connector 9 for connecting with the first strain-measuring bridge and the second strain-measuring bridge, for showing with signal processing
4th connector 11 of showing device connection and the conducting wire being connect with third connector 9 and the 4th connector 11.Third connector 9
It being electrically connected for matching to be formed with the second connector 7, the second connector 7 is to play needle base with the conductive conduction for playing needle, the
Three connectors 9 are then for the conductive conductive bullet needle male seat for playing needle.4th connector 11 with the first connector 42 for matching
Electrical connection is formed, the first connector 42 is to play the conductive of needle with conduction to play needle male seat, and the 4th connector 11 is with conductive bullet
The conductive of needle plays needle base.Third connector 9 is electrically connected with the second connector 7 by sphere-contact formation, correspondingly, third connects
Connect the conductive end setting bulb for playing needle of device 9, the spherical shape that the conductive end setting for playing needle of the second connector 7 allows bulb to be embedded in
Groove, alternatively, bulb, the conductive end setting for playing needle of third connector 9 is arranged in the conductive end for playing needle of the second connector 7
The spherical groove for allowing bulb to be embedded in.Likewise, the first connector 42 and the 4th connector 11 are also to form electricity by sphere-contact
Connection, correspondingly, bulb, the conductive end for playing needle of the 4th connector 11 is arranged in the conductive end for playing needle of the first connector 42
The spherical groove for allowing bulb to be embedded in is set, alternatively, bulb, the first connector is arranged in the conductive end for playing needle of the 4th connector 11
The spherical groove that the 42 conductive end setting for playing needle allows bulb to be embedded in.
When using long distance attachment device connection signal processing display device and wrench body, signal processing display device is logical
It crosses mounting assembly set thereon to be fixedly connected with the 4th connector 11, third connector 9 passes through mounting assembly set thereon
It is fixedly connected with wrench body 3, is loosened to avoid long distance attachment device and signal processing display device and wrench body, avoid connecting
It interrupts.
As shown in Figure 8 and Figure 9, third connector 9 includes pedestal 91 and connect with pedestal 91 and be locked in pedestal 91 and pull
Mounting assembly on hand body 3, pedestal 91 are used to be electrically connected with the second connector 7 by sphere-contact formation with the conductive needle that plays.
The mounting assembly of third connector 9 is identical as the structure of mounting assembly set in signal processing display device, as shown in Figure 10,
The mounting assembly of third connector 9 includes the magnetic key operated lock mandrel 92 connecting with pedestal 91 and is sheathed on magnetic key operated lock mandrel 92 and uses
In providing the magnet 93 of coupling mechanism force, magnetic key operated lock mandrel 92 may pass through location hole set on wrench body 3.Magnetic key operated lock mandrel 92 is used for
Pedestal 91 is locked on wrench body 3, magnetic key operated lock mandrel 92 and wrench body 3 are plug connection, consequently facilitating third connector 9 with
The assembly or disassembly of wrench body 3 separates.Multiple and mounting assembly quantity and wrench body is arranged in the mounting assembly of third connector 9
The quantity of set location hole is equal on 3, and multiple mounting assemblies are arranged along the length direction of pedestal 91, each mounting assembly
It is inserted into a location hole respectively.
As shown in fig. 10 and fig. 12, magnetic key operated lock mandrel 92 includes an elastically deformable and the axial direction for making magnetic key operated lock mandrel 92
The tight lock part 921 and an interconnecting piece 922 connecting with pedestal 91 of position locking, magnet 93 are sheathed on interconnecting piece 922 and connect
Socket part 922 is to be fixedly connected with tight lock part 921.Interconnecting piece 922 is preferably threadedly coupled with pedestal 91, is accordingly set on pedestal 91
There is the threaded hole for allowing interconnecting piece 922 to be inserted into, interconnecting piece 922 is cylindrical structure, and the outer surface of interconnecting piece 922 is equipped with external screw thread.
Tight lock part 921 is preferably conical structure, and tight lock part 921 has a bigger diameter end and a miner diameter end, the overall diameter of bigger diameter end
Greater than the overall diameter of miner diameter end, the overall diameter at the bigger diameter end of tight lock part 921 is greater than location hole and connection set on wrench body 3
Externally threaded diameter is less than the diameter of location hole on externally threaded diameter and interconnecting piece 922 in portion 922, so that tight lock part 921 can
To keep the state outside location hole, tight lock part 921 is acted on by own resilient, the frictional force of tight lock part 921 and hole inner wall
It is located in lock shaft in the hole of wrench body 3, so as to play the role of axial limiting.
As shown in fig. 10 and fig. 12, preferably, tight lock part 921 is structure open at one end and inner hollow, locking
The open end in portion 921 is miner diameter end, and tight lock part 921 has elastic deformability, can be selectively performed receipts radially
It contracts and loosens.The side wall of tight lock part 921 is equipped with multiple open slots 923 and multiple open slots 923 are to be uniformly distributed circumferentially, with
The side wall of tight lock part 921 is set to be separated into multistage, the tight lock part 921 of formation is in openable and closable structure radially.Open slot 923
And to start to extend on the side wall of limiting section 924 on the open end end face of tight lock part 921, multiple open slots 923 are being locked
To be uniformly distributed circumferentially on the side wall in portion 921, on the outside under extruding force effect, the various pieces of 921 side wall of tight lock part can be with
It being deflected towards inside, tight lock part 921 is shunk, so that tight lock part 921 can pass through location hole set on wrench body 3, into
And it can extract or be inserted into from location hole easily and be installed.
As shown in fig. 10 and fig. 12, preferably, magnetic key operated lock mandrel 92 further includes one and interconnecting piece 922 and tight lock part
921 limiting sections 924 being fixedly connected and limiting section 924 is presented axially between interconnecting piece 922 and tight lock part 921, limiting section
924 for matching magnet 93 of the gripping sleeve on interconnecting piece 922 with pedestal 91.Limiting section 924 is cylindrical structure, limit
The diameter in portion 924 be less than tight lock part 921 bigger diameter end diameter and be greater than interconnecting piece 922 diameter, one end of limiting section 924 with
One end of interconnecting piece 922 connects, and the other end connect with the bigger diameter end of tight lock part 921 and by circular conical surface transition, i.e. interconnecting piece
922, limiting section 921 and tight lock part 924 are coaxially to be sequentially connected and form overall structure.Limiting section 924 and the formation of interconnecting piece 922
To the step surface that magnet 93 limits, diameter of the diameter no more than location hole set on wrench body 3 of limiting section 924, limiting section
924 may be in location hole, so that magnet 93 and tight lock part 921 are located at the side of location hole.
As shown in fig. 10 and fig. 12, preferably, limiting section 924 includes the major diameter section 925 and path section being connected
926, major diameter section 925 and path section 926 are cylindrical structure, major diameter section 925 between path section 926 and interconnecting piece 922 and
Major diameter section 925 is to be fixedly and coaxially connected with path section 926 and interconnecting piece 922, and path section 926 is located at bigger diameter end 925 and tight lock part
It is connect between 921 and with tight lock part 921.The diameter of major diameter section 925 is greater than the diameter of interconnecting piece 922 and path section 926, path section
926 diameter is less than the diameter of the bigger diameter end of tight lock part 921, and the diameter of path section 926 is no more than positioning set on wrench body 3
The diameter in hole, path section 926 may be in location hole.Path section 926 is structure open at one end and inner hollow, tight lock part
Open slot 923 on 921 extends on the side wall of path section 926 of limiting section, is equally separated into the side wall of path section 926 more
Section.
As shown in Figure 10, magnet 93 is sheathed on interconnecting piece 922 and for adsorbing wrench body 3, and magnet 93 is preferably annulus
There is at the center of magnet 93 shape structure the diameter of the centre bore and the centre bore that allow interconnecting piece 922 to pass through to be less than limiting section 924
Diameter, the diameter of the centre bore and externally threaded diameter for being greater than interconnecting piece 922, the overall diameter of magnet 93 are greater than on wrench body 3
The diameter of set location hole.After magnetic key operated lock mandrel 92 is fixedly connected with pedestal 91,93 sets of magnet in magnetic key operated lock mandrel 92
It is clamped on interconnecting piece 922 and by limiting section 924 and pedestal 91.
When being assembled long distance attachment device and wrench body, first the pedestal 91 of third connector 9 is placed on and is pulled
It the side of hand body 3 and is aligned the threaded hole on pedestal 91 with the location hole on wrench body 3, then will firmly be arranged with magnet 93
Magnetic key operated lock mandrel 92 from the other side of wrench body 3 insertion location hole, the tight lock part 921 of magnetic key operated lock mandrel 92 is passing through positioning
It can be shunk because bearing extruding force during hole, until after tight lock part 921 is pierced by location hole completely, 921 meeting of tight lock part
The magnet 93 for reverting to open configuration by own resilient, while being sheathed on magnetic key operated lock mandrel 92 can pulled by magnetic-adsorption
On hand body 3, magnet provides coupling mechanism force in turn, so as to which third connector 9 to be locked on wrench body 3, and can play anti-
Loose effect improves reliable lock.
As shown in figure 13, the location hole for allowing magnetic key operated lock mandrel 92 to be inserted into, the first accommodating hole 32 and second are equipped in wrench body 3
Accommodating hole 33 and the third accommodating hole 34 for allowing magnet 93 to be inserted into, the first accommodating hole 32, location hole, the second accommodating hole 33 and third
Accommodating hole 34 sets gradually for the thickness direction along wrench body 3, and third accommodating hole 34 forms opening on the side of wrench body 3.
First accommodating hole 32, location hole, the second accommodating hole 33 and third accommodating hole 34 are circular hole and four circular holes are coaxial arrangement, the
One accommodating hole 32 is used to accommodate the path section 926 of limiting section 924 for accommodating tight lock part 921, location hole, and the second accommodating hole 33 is used
In the major diameter section 925 for accommodating limiting section 924, for third accommodating hole 34 for accommodating magnet 93, the diameter of the first accommodating hole 32 is not small
In the largest outer diameter of tight lock part 921, the diameter of the second accommodating hole 33 is not less than the diameter of major diameter section 925, third accommodating hole 34
Diameter be not less than magnet 93 overall diameter.
It, need to be by signal processing display device when being assembled long distance attachment device and signal processing display device
Mounting assembly the 4th connector 11 is fixed together with signal processing display device.As shown in figure 11, the 4th connection
Device 11 includes pedestal 111 and the conduction being set on pedestal 111 plays needle 112, and conduction plays needle 112 and is used to fill with signal processing display
42 grafting of the first connector set.Pedestal 111 has the mounting hole 113 for allowing the magnetic key operated lock mandrel 43 of mounting assembly to pass through and should
Mounting hole 113 is the mounting assembly on pedestal 111 on the through-hole of setting, mounting hole 113 and signal processing display device
Quantity it is equal, each mounting assembly is inserted into respectively in a mounting hole 113.
When needing measuring moment, protection cap 8 is slided into one end, signal processing display device is then mounted on wrench body
On, electric connector is connected to the circuit of the first, second resistance strain gage 6 and signal processing display device.Then double (end) wrench is used
Strain corresponding with torque size can be generated when tightening fastener parts, on wrench body 3, if the output of the first strain-measuring bridge is answered
Varying signal is ε 1, if the strain signal of the output of the second strain-measuring bridge is ε 2.
When with the first 1 tightening fastener parts of driving end, ε 1 is greater than ε 2, and what signal processing display device was calculated at this time twists
Tight moment values are M1, M1=K11* ε 1-K12* ε 2, and the K11 and K12 in formula are directly proportional to the section composite bending modulus of wrench body, K11
=E*I* (L1+L0)/L0, K12=E*I*L1/L0, E are wrench body elasticity modulus of materials, and I is the section bending resistance mould of wrench body
Amount, L1 are the vertical range at the center of first resistor foil gauge 5 and the centroidal axis of the first driving end 1, and L0 is the first foil gauge
Center and the second foil gauge center between vertical range.
When with the second 2 tightening fastener parts of driving end, ε 2 is greater than ε 1, and what signal processing display device was calculated at this time twists
Tight moment values are M2, screw-down torque M2=K21* ε 2-K22* ε 1, the section composite bending modulus of K21 and K22 and wrench body in formula at
Direct ratio, K21=E*I* (L2+L0)/L0, K22=E*I*L2/L0, E are wrench body elasticity modulus of materials, and I is the section of wrench body
Composite bending modulus, L2 are the vertical range at the center of second resistance foil gauge 6 and the centroidal axis of the second driving end 2, L0 first
Vertical range between the center of foil gauge and the center of the second foil gauge.
As shown in figure 3, set the vertical range of the center of first resistor foil gauge 5 and the centroidal axis of the first driving end 1 as
L1, if the vertical range of the centroidal axis of the center of second resistance foil gauge 6 and the second driving end 2 is L2.It is preferred that working as L1=L2
When, K11=K21=K1, K12=K22=K2 can be made.
When being not required to measurement torque, signal processing display device is extracted, wrench body equally makes just as common double (end) wrench
With protection cap 8 being slided into connector position, and be located in arc convex on wrench body in set circular hole, on wrench body
Connector shield.When wrench body is separated with signal processing display device needs in use, long distance attachment device one
End is connected with wrench body, and the other end is connected with signal processing display device, and torgue measurement and control are completed in certain distance
Function.
Preferably, as shown in Figure 14 and Figure 15, electronical display component 41 mainly includes shell, single-chip microcontroller, filtering mould
Block, double channel A/D converter, display module, battery module, accurate Voltage stabilizing module and buzzer, single-chip microcontroller are set in shell
Portion, filter module are electrically connected with the first strain-measuring bridge and the second strain-measuring bridge, double channel A/D converter and filtering mould
Block electrical connection, single-chip microcontroller are electrically connected with double channel A/D converter, display module, battery module and buzzer, accurate Voltage stabilizing module
It is electrically connected with battery module and double channel A/D converter, battery module is electrically connected with buzzer.
The present invention also provides a kind of torque measuring methods, double end torque spanner using the above structure, and when measurement passes through
2 tightening fastener parts of first driving end 1 or the second driving end detect power by the first strain-measuring bridge and the second strain-measuring bridge
Square simultaneously exports strain signal to signal processing display device, and shows screw-down torque by signal processing display device.
First strain-measuring bridge and the second strain-measuring bridge compensator bridge each other, are drawn with correcting point of application change in location
The measurement error risen, if the output strain signal of the first strain-measuring bridge is ε 1, if the output of the second strain-measuring bridge
Strain signal is ε 2；In measurement process, when with the first 1 tightening fastener parts of driving end, ε 1 is greater than ε 2, screw-down torque M1=
K11*ε1-K12*ε2；When with the second 2 tightening fastener parts of driving end, ε 2 is greater than ε 1, screw-down torque M2=K21* ε 2-K22* ε 1.
The present invention is exemplarily described in conjunction with attached drawing above.Obviously, present invention specific implementation is not by above-mentioned side
The limitation of formula.As long as using the improvement for the various unsubstantialities that the inventive concept and technical scheme of the present invention carry out；Or not
It is improved, above-mentioned conception and technical scheme of the invention are directly applied into other occasions, in protection scope of the present invention
Within.
Claims (36)
1. the double end torque spanner that can be used separately, including wrench body and signal processing display device, which is characterized in that further include
It is set to first driving end of described wrench body one end, the second driving end of the wrench body other end is set to and is set to spanner
It is the first strain-measuring bridge and the second strain-measuring bridge being electrically connected on body and with the signal processing display device, first
Strain-measuring bridge and the second strain-measuring bridge are for exporting strain signal and each other compensator bridge, if first strain is surveyed
The output strain signal for measuring electric bridge is ε 1, if the strain signal of the output of second strain-measuring bridge is ε 2；When with first
When driving end tightening fastener parts, ε 1 is greater than ε 2, screw-down torque M1=K11* ε 1- K12* ε 2, K11=E*I*(L1+L0)/L0, K12=
E*I*L1/L0；When with the second driving end tightening fastener parts, ε 2 be greater than ε 1, screw-down torque M2=K21* ε 2- K22* ε 1, K21=
E*I*(L2+L0)/L0, K22=E*I*L2/L0；
E be wrench body elasticity modulus of materials, I be wrench body section composite bending modulus, L1 be first resistor foil gauge center with
The vertical range of the centroidal axis of first driving end, L2 are the center of second resistance foil gauge and the centroidal axis of the second driving end
Vertical range, L0 be the first foil gauge center and the second foil gauge center between vertical range.
2. the double end torque spanner according to claim 1 that can be used separately, which is characterized in that first strain measurement
For electric bridge between second strain-measuring bridge and first driving end, the second strain-measuring bridge is in the first strain
Between measuring bridge and second driving end.
3. the double end torque spanner according to claim 2 that can be used separately, which is characterized in that the wrench body at least has
There are the first mounting surface and the second mounting surface and the first mounting surface and the second mounting surface are to be oppositely arranged, two first resistor foil gauges
It is respectively arranged on the first mounting surface and the second mounting surface.
4. the double end torque spanner according to claim 3 that can be used separately, which is characterized in that two first resistors
Foil gauge is positioned opposite on the wrench body.
5. the double end torque spanner according to claim 3 or 4 that can be used separately, which is characterized in that the first resistor
Foil gauge is set at the medium position on wrench body length direction, and first resistor foil gauge and wrench body are bonding connection.
6. the double end torque spanner according to claim 1 that can be used separately, which is characterized in that second strain measurement
Electric bridge includes the second resistance foil gauge being set on the wrench body and second resistance foil gauge is arranged two, two second electricity
Foil gauge is hindered to connect by half-bridge.
7. the double end torque spanner according to claim 6 that can be used separately, which is characterized in that the wrench body at least has
There are the first mounting surface and the second mounting surface and the first mounting surface and the second mounting surface are to be oppositely arranged, two second resistances are answered
Become piece to be respectively arranged on the first mounting surface and the second mounting surface.
8. the double end torque spanner according to claim 6 or 7 that can be used separately, which is characterized in that two described second
Resistance strain gage is positioned opposite on the wrench body.
9. the double end torque spanner according to claim 1 that can be used separately, which is characterized in that further include and the spanner
Body connection and cover board or sheath for covering first strain-measuring bridge and second strain-measuring bridge.
10. the double end torque spanner according to claim 9 that can be used separately, which is characterized in that the cover board with it is described
Wrench body is to be welded to connect or connected by fastener.
11. the double end torque spanner according to claim 1 that can be used separately, which is characterized in that the signal processing is aobvious
Showing device and the wrench body are detachable connection.
12. the double end torque spanner according to claim 11 that can be used separately, which is characterized in that the signal processing is aobvious
Showing device includes electronical display component and connect with electronical display component and electronical display component is locked on the wrench body
Mounting assembly.
13. the double end torque spanner according to claim 12 that can be used separately, which is characterized in that the mounting assembly packet
It includes the magnetic key operated lock mandrel connecting with the electronical display component and is sheathed on magnetic key operated lock mandrel and is used to provide the magnetic of coupling mechanism force
Iron, the wrench body have the location hole for allowing magnetic key operated lock mandrel to be embedded in.
14. the double end torque spanner according to claim 13 that can be used separately, which is characterized in that the magnetic key operated lock mandrel
It is to be threadedly coupled with the electronical display component.
15. the double end torque spanner according to claim 13 that can be used separately, which is characterized in that the magnetic key operated lock mandrel
Including an elastically deformable and the tight lock part that locks the axial position of magnetic key operated lock mandrel.
16. the double end torque spanner according to claim 15 that can be used separately, which is characterized in that the side of the tight lock part
Wall be equipped with multiple open slots and multiple open slots be it is circumferentially distributed so that the side wall of tight lock part is separated into multistage.
17. the double end torque spanner according to claim 16 that can be used separately, which is characterized in that the tight lock part is can
The conical structure of folding, and the largest outer diameter of tight lock part is greater than the diameter of the location hole.
18. the double end torque spanner according to claim 15 that can be used separately, which is characterized in that the magnetic key operated lock mandrel
It further include the interconnecting piece being connect with the electronical display component.
19. the double end torque spanner according to claim 18 that can be used separately, which is characterized in that the interconnecting piece and institute
Electronical display component is stated to be threadedly coupled.
20. the double end torque spanner according to claim 18 that can be used separately, which is characterized in that the interconnecting piece and institute
Tight lock part connection is stated, the magnet is sheathed on interconnecting piece.
21. 2 to 20 any double end torque spanner that can be used separately according to claim 1, which is characterized in that the peace
Arrangement setting is multiple.
22. 2 to 20 any double end torque spanner that can be used separately according to claim 1, which is characterized in that the letter
Number processing display device further include be set on the electronical display component and with the circuit board electrical connection in electronical display component
The first connector, the first connector and first strain-measuring bridge and second strain-measuring bridge are to be electrically connected.
23. the double end torque spanner according to claim 22 that can be used separately, which is characterized in that first strain is surveyed
It measures electric bridge and second strain-measuring bridge and is set on the wrench body and is sphere-contact with first connector
The second connector be electrical connection.
24. the double end torque spanner according to claim 23 that can be used separately, which is characterized in that further include being sheathed on institute
It states on wrench body and for covering second connector after the signal processing display device is separated with wrench body disassembly
Protection cap.
25. the double end torque spanner according to claim 1 that can be used separately, which is characterized in that set first strain
Measuring bridge is L1 at a distance from the centroidal axis of first driving end, if second strain-measuring bridge and described second
The distance of the centroidal axis of driving end is L2, as L1=L2, K11=K21, K12=K22.
26. the double end torque spanner according to claim 1 that can be used separately, which is characterized in that first driving end
Structure different from second driving end.
27. the double end torque spanner according to claim 1 that can be used separately, which is characterized in that first driving end
Structure it is identical as second driving end.
28. the double end torque spanner according to claim 1 that can be used separately, which is characterized in that the wrench body is straight
Handle or curved handle.
29. the double end torque spanner according to claim 1 that can be used separately, which is characterized in that first driving end
For opened wrench head, plum blossom closed-end spanner head, plum blossom opened wrench head, internal hexagonal wrench head, socket head or there is ratchet
The driving end of mechanism.
30. the double end torque spanner according to claim 1 that can be used separately, which is characterized in that second driving end
For opened wrench head, plum blossom closed-end spanner head, plum blossom opened wrench head, internal hexagonal wrench head, socket head or there is ratchet
The driving end of mechanism.
31. the double end torque spanner according to claim 11 that can be used separately, which is characterized in that further include in institute
It states signal processing display device and separates rear and the signal processing display device and described first, second with wrench body disassembly
Strain-measuring bridge is the long distance attachment device of electrical connection.
32. the double end torque spanner according to claim 31 that can be used separately, which is characterized in that the long distance connection dress
Set including connect with first, second strain-measuring bridge third connector, connect with the signal processing display device
The 4th connector and the conducting wire that is connect with third connector and the 4th connector.
33. the double end torque spanner according to claim 32 that can be used separately, which is characterized in that the third connector
It being electrically connected for matching to be formed with the second connector, the 4th connector is electrically connected for matching to be formed with the first connector,
Second connector is with the conductive conductive bullet needle base for playing needle, and third connector is public with the conductive conductive bullet needle for playing needle
Seat.
34. torque measuring method, which is characterized in that using any double end torque spanner of claims 1 to 33, when measurement
By the first driving end or the second driving end tightening fastener parts, simultaneously by the first strain-measuring bridge and the second strain-measuring bridge
Detection screw-down torque simultaneously exports strain signal to signal processing display device, and shows screwing force by signal processing display device
Square.
35. torque measuring method according to claim 34, which is characterized in that first strain-measuring bridge and described
Second strain-measuring bridge compensator bridge each other, to correct measurement error caused by point of application change in location, if described first answers
Become the output strain signal of measuring bridge as ε 1, if the strain signal of the output of second strain-measuring bridge is ε 2；It is surveying
During amount, when with the first driving end tightening fastener parts, ε 1 is greater than ε 2, screw-down torque M1=K11* ε 1- K12* ε 2, K11=E*
I*(L1+L0)/L0, K12=E*I*L1/L0；When with the second driving end tightening fastener parts, ε 2 be greater than ε 1, screw-down torque M2=
K21* ε 2- K22* ε 1, K21=E*I*(L2+L0)/L0, K22=E*I*L2/L0.
36. torque measuring method according to claim 35, which is characterized in that set first strain-measuring bridge and institute
The distance for stating the centroidal axis of the first driving end is L1, if the centroid of second strain-measuring bridge and second driving end
The distance of axis is L2, as L1=L2, K11=K21, K12=K22.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611034998.2A CN106392958B (en) | 2016-11-23 | 2016-11-23 | The double end torque spanner and torque measuring method that can be used separately |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611034998.2A CN106392958B (en) | 2016-11-23 | 2016-11-23 | The double end torque spanner and torque measuring method that can be used separately |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106392958A CN106392958A (en) | 2017-02-15 |
| CN106392958B true CN106392958B (en) | 2019-08-09 |
Family
ID=58082456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611034998.2A Active CN106392958B (en) | 2016-11-23 | 2016-11-23 | The double end torque spanner and torque measuring method that can be used separately |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106392958B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112223186B (en) * | 2020-10-15 | 2021-11-19 | 南京工业职业技术大学 | Hand-pressing type socket wrench |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0362696A1 (en) * | 1988-10-03 | 1990-04-11 | Snap-On Tools Corporation | Torque wrench with measurements independent of hand-hold position |
| CN2510241Y (en) * | 2001-11-29 | 2002-09-11 | 国营东方仪器厂 | Digital-display torque wrench |
| CN2590724Y (en) * | 2002-10-10 | 2003-12-10 | 薛宗群 | Torque wrench utilizing resistance strain guage torsion compensation technique |
| CN1463831A (en) * | 2002-06-03 | 2003-12-31 | 谢世揆 | Process and apparatus for wrench capable of displaying torque value |
| CN2700053Y (en) * | 2004-04-27 | 2005-05-18 | 谢智庆 | Electronic wrench with enhanced structure |
-
2016
- 2016-11-23 CN CN201611034998.2A patent/CN106392958B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0362696A1 (en) * | 1988-10-03 | 1990-04-11 | Snap-On Tools Corporation | Torque wrench with measurements independent of hand-hold position |
| CN2510241Y (en) * | 2001-11-29 | 2002-09-11 | 国营东方仪器厂 | Digital-display torque wrench |
| CN1463831A (en) * | 2002-06-03 | 2003-12-31 | 谢世揆 | Process and apparatus for wrench capable of displaying torque value |
| CN2590724Y (en) * | 2002-10-10 | 2003-12-10 | 薛宗群 | Torque wrench utilizing resistance strain guage torsion compensation technique |
| CN2700053Y (en) * | 2004-04-27 | 2005-05-18 | 谢智庆 | Electronic wrench with enhanced structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106392958A (en) | 2017-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106392958B (en) | The double end torque spanner and torque measuring method that can be used separately | |
| CN106025649B (en) | A kind of round electric connector | |
| CN110068418A (en) | A kind of pressure that can be worked in vibration environment and acceleration Multifunction Sensor | |
| US10821580B2 (en) | Electronic torque wrench with sensing structure | |
| CN206952842U (en) | The separable double end torque spanner used | |
| AU2009315415B2 (en) | Flow sensors | |
| CN109489728A (en) | A kind of sensor | |
| CN106525331B (en) | Pen type free field pressure sensor calibration device | |
| CN108225622A (en) | A kind of three-dimensional force sensor | |
| CN107414708A (en) | For small space clamping and accurate positioning device | |
| CN211785847U (en) | Pull-out nut sensor for aviation teaching model | |
| CN109632471A (en) | A kind of novel pulling force experiment machine fixture | |
| CN206952840U (en) | Head-exchangeable double end torque spanner | |
| CN207814149U (en) | A kind of dynamometry bolt and the rotor magnetic pole connection structure using the bolt | |
| CN210196233U (en) | Sensor convenient to connect | |
| CN217542197U (en) | Large-output pulling pressure sensor | |
| CN109142068B (en) | Deposited metal mechanical property tester | |
| EP1764605B1 (en) | Cone penetrometer | |
| CN202522177U (en) | Testing finger | |
| CN206952841U (en) | Double end torque spanner | |
| CN111624362A (en) | Piezoelectric acceleration sensor for integrated instrument | |
| CN206048259U (en) | A kind of two dimension clamping force checking device | |
| CN206568067U (en) | A kind of moment of torsion perceives instrument | |
| CN205940840U (en) | Garter -type spring dynamometry frock | |
| CN217716727U (en) | Centre shaft torsion detection sensing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |