CN203696861U - Electronic torque wrench and torque measuring device thereof - Google Patents
Electronic torque wrench and torque measuring device thereof Download PDFInfo
- Publication number
- CN203696861U CN203696861U CN201320883734.XU CN201320883734U CN203696861U CN 203696861 U CN203696861 U CN 203696861U CN 201320883734 U CN201320883734 U CN 201320883734U CN 203696861 U CN203696861 U CN 203696861U
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- connecting rod
- sensor
- wrench
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- 238000010586 diagram Methods 0.000 description 7
- 239000011888 foil Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The utility model relates to an electronic torque wrench and a torque measuring device thereof. The electronic torque wrench comprises a wrench body, a sensor, a holding sleeve and a computing device. The wrench body comprises a connection rod and a tool head. The connection rod comprises a front port and a rear port. The tool head is connected with the connection rod and stretches out of the front port of the connection rod. The sensor generates a sensing signal according to the stress degree, is connected with the connection rod of the wrench body, and stretches out of the rear port of the connection rod. The holding sleeve sleeves the connection rod of the wrench body and is connected with the sensor. The computing device is electrically connected with the sensor and is used for receiving the sensing signal and processing the signal into a torque value.
Description
Technical field
The utility model is relevant with torque spanner, refers to especially a kind of electronic type torsional force wrench and torsion force measuring device thereof.
Background technology
Along with electronic component development, there are at present the hand-held tools such as many spanners, screwdriver, ratchet spanner all to import gradually the electronic components that there is detecting torque values and show torque value, for example, the Patent Cases such as TaiWan, China I330575, M431047, M360114, M372771 and No. M394880, and No. 201204511 open case of TaiWan, China has the spanner of exposure energy detecting torque values.
Wherein, M394880 patent has disclosed a kind of multi-functional dynamic torque tool sensing apparatus, and this patent discloses the structure that can replace tool heads.So, equal power and be multiplied by the arm of force in torque value, but change after different tool heads, the arm of force also may change, and therefore, the multi-functional dynamic torque tool sensing apparatus of this patent measures the torque value arriving after the different tool heads of replacement also may distortion.
No. 201204511 open case of TaiWan, China disclosed a kind of method of digital torque wrench structure and balancing force on handle thereof, and it is that sensor and foil gauge etc. are located on pulling part, and this is also current existing way.But because Digital display is the rear that is positioned at digital torque wrench, so in assembling, the electric connection between sensor, foil gauge and Digital display is difficult.
Summary of the invention
Because above-mentioned disappearance, electronic type torsional force wrench of the present utility model can be reached a main purpose, and main purpose is that electronic type torsional force wrench can directly obtain the actual torque value being applied on workpiece in the time being subject to external force, and more easily assembling.
In order to reach above-mentioned main purpose, electronic type torsional force wrench of the present utility model comprise a wrench body, a sensor, hold cover and a calculation element.Wrench body has a connecting rod and a tool heads.Connecting rod has forward and backward two-port, and tool heads connects connecting rod, and stretches out from the front port of connecting rod.Sensor produces a sensing signal according to its stressed degree, and has a canned paragraph, a strain section and one stressed section.Canned paragraph connects the connecting rod of wrench body, and is positioned at the front end of strain section.The rear end of strain section protrudes out the rear port of connecting rod.Stressed section is positioned at the rear end of strain section.Holding cover is to be socketed on the connecting rod of wrench body, and connects stressed section of sensor.Calculation element electrical connection sensor, and receive sensing signal and be processed into a torque value.
By this, electronic type torsional force wrench of the present utility model can obtain the actual torsion being applied on workpiece by sensor and calculation element, and because sensor setting and tool heads are irrelevant, therefore, electric connection between sensor and calculation element is more simple compared with prior art, and better assembling.
Electronic type torsional force wrench of the present utility model also can be reached another object, another object is that the torsion force measuring device of power supply minor torque spanner can be replaced tool heads, and torsion force measuring device can be inputted the actual arm of force of electronic type torsional force wrench, so that electronic type torsional force wrench can obtain torque value accurately.
In order to reach another above-mentioned object, the torsion force measuring device of electronic type torsional force wrench of the present utility model comprise a connecting rod, a sensor, hold cover and a calculation element.Sensor produces a sensing signal according to its stressed degree, and has a canned paragraph, a strain section and one stressed section.Canned paragraph connects connecting rod, and is positioned at the front end of strain section.The rear end of strain section protrudes out connecting rod.Stressed section is positioned at the rear end of strain section.Hold and be socketed on connecting rod, and connect stressed section of sensor.Calculation element electrical connection sensor, and receive sensing signal and be processed into a torque value.
So, in the time of assembling, between torsion force measuring device and tool heads, just need to, at the circuit of considering to be connected, not carry out ease of assembly.
Preferably, calculation element is located on connecting rod.Calculation element has a computing circuit, a display and an input block.Computing circuit connects display and input block, and sensing signal computing is become to torque value, and display shows torque value, and input block is for input one numerical value.So, the electronic type torsional force wrench after assembling just can be inputted actual arm of force value (being numerical value) by input block and reaches and obtain the object of torque value accurately.
About detailed structure, feature, assembling or the occupation mode of light-emitting device provided by the utility model, will in describing in detail, be described follow-up embodiment.But, in the utility model field, having and conventionally know that the knowledgeable should be able to understand, these detailed descriptions and the cited specific embodiment of enforcement the utility model, only for the utility model is described, not in order to limit patent claim of the present utility model.
Brief description of the drawings
Fig. 1 is the schematic diagram of the first preferred embodiment of the utility model electronic type torsional force wrench.
Fig. 2 is the partial schematic sectional view of electronic type torsional force wrench in Fig. 1.
Fig. 3 is the schematic diagram that electronic type torsional force wrench is employed.
Fig. 4 is the partial schematic sectional view of electronic type torsional force wrench.
Fig. 5 is the partial schematic sectional view of electronic type torsional force wrench.
Fig. 6 is the sensor of electronic type torsional force wrench and the block schematic diagram of calculation element.
Fig. 7 and 8 is respectively the schematic diagram of torsion force measuring device second preferred embodiment of electronic type torsional force wrench of the present utility model.
Fig. 9 is the sensor of electronic type torsional force wrench and the block schematic diagram of calculation element.
Detailed description of the invention
Below, hereby coordinating each accompanying drawing to enumerate the composition member of corresponding preferred embodiment to electronic type torsional force wrench of the present utility model and reach effect explains.In right each accompanying drawing, member, size and the outward appearance of electronic type torsional force wrench are only used for technical characterictic of the present utility model is described, but not the utility model is construed as limiting.
Fig. 1 to 6 is schematic diagrames of the first preferred embodiment of the utility model electronic type torsional force wrench.As shown in Fig. 1 and 2, electronic type torsional force wrench 10 of the present utility model comprises a wrench body 11, a sensor 13, holds cover 15 and a calculation element 17.
Wrench body 11 has a connecting rod 111 and a tool heads 113.Connecting rod 111 has forward and backward two-port 115,117, and tool heads 113 connects connecting rod 111, and stretches out from the front port 115 of connecting rod 111.In this embodiment, connecting rod 111 is long straight metal tubes.Tool heads 113 explains as example to open spanner, but in fact, tool heads 113 can be also ratchet spanner, double offset ring spanner and box spanner etc.
Sensor 13 produces a sensing signal according to its stressed degree, and sensor 13 produces the mode of sensing signal and please state by Rong Hou.In this embodiment, sensor 13 explains as an example of pressure sensor example, but in fact, sensor 13 also can be responded to stressed degree with gravity sensor etc.Sensor 13 has a canned paragraph 131, a strain section 133 and one stressed section 135, canned paragraph 131 and stressed section 135 lay respectively at the forward and backward two ends 137,139 of strain section 133, in figure, dotted line is only used for indicating the forward and backward two ends 137,139 of strain section 133, and in fact, dotted line is non-existent.Canned paragraph 131 connects the connecting rod 111 of wrench body 11.The rear end 139 of strain section 133 protrudes out the rear port 117 of connecting rod 111.
Hold cover 15 and be socketed on the connecting rod 111 of wrench body 11, and connect stressed section 135 of sensor 13.Holding cover 15 preferably selects the anti-slip materials such as rubber, plastic cement or composite to make.
Calculation element 17 is electrically connected sensor 13, and receives the sensing signal that produces of sensor 13 and sensing signal is processed into a torque value.In this embodiment, calculation element 17 is located on the connecting rod 111 of wrench body 11.But in fact, the position of calculation element 17 can be adjusted, therefore not to be limited on connecting rod 111.
Moreover, between calculation element 17 and sensor 13, be for example, to be connected by electric wire (enamel-covered wire), the position of electric wire can be inner or outside in wrench body 11.
As shown in Figure 3, when the tool heads 113 of electronic type torsional force wrench 10 of the present utility model is socketed on a workpiece 20, and when user's hand grips cover 15 and rotates towards a locking direction (as the direction of arrow in figure), the locking direction of the present embodiment is clockwise, but be not limited in a clockwise direction, workpiece 20 explains as an example of nut example, but in fact, workpiece 20 can be also the elements such as bolt.Because user applies cover 15 the strength (as arrow in figure) of being in one's hands, also can pass to sensor 13 stressed section 135, make the strain section 133 of sensor 13 produce deformation, so, sensor 13 will produce sensing signal according to the deflection of strain section 133.Wherein, the large expression sensor 13 of strain section 133 deflection is stressed large, and the little expression sensor 13 of strain section 133 deflection is stressed little.Then, calculation element 17 will receive sensing signal and be processed into torque value.The torque value that calculation element 17 obtains is exactly user is applied to workpiece 20 actual torsion by electronic type torsional force wrench 10.
As shown in Figure 4, connecting rod 111 has a through hole 119, and through hole 119 is communicated with the rear port 117 of connecting rod 111.The canned paragraph 131 of sensor 13 is positioned at the through hole 119 of connecting rod 111.In this embodiment, between canned paragraph 131 and connecting rod 111, be to be screwed together with screw, but not being connected between canned paragraph 131 and connecting rod 111 is limited with screw screw-in version.
The strain section 133 of sensor 13 has a perforation 141, and the pattern of perforation 141 is not with the limit that is depicted as in scheming.Size and the size of perforation 141 are to control the deformable amount of strain section 133.
Hold cover 15 and have two bolts 153, two bolts 153 are spirally connected and hold stressed section 135 of cover 15 and sensor 13, so, inner ring surface 151 and stressed section 135 electronic type torsional force wrench 10 of the present utility model that just can positively link together, and make of holding cover 15 can reflect the torque value being applied on workpiece really.
As shown in Figure 5, utilize two bolts 153 to make to hold cover 15 and stressed section 135 to link together the holding cover and 15 also can have a projection 155 and an inner ring surface 151 of electronic type torsional force wrench 10 of the present utility model except aforementioned.Projection 155 protrudes out inner ring surface 151, and stressed section 135 of butt sensor 13.So, when holding cover 15 while being subject to external force, the projection 155 that can guarantee to hold cover 15 is that single-point is stressed to stressed section 135 of sensor 13, so that electronic type torsional force wrench of the present utility model 10 obtains torque value accurately.
The explanation of complex chart 4 and 5 is known, and holding cover 15 has much with the connected mode of stressed section 135, therefore do not illustrate and be limited with this two figure.
As shown in Figure 6, calculation element 17 has a display 173 of a computing circuit 171 and concatenation operation circuit 171.The sensing signal computing that computing circuit 171 produces sensor 13 becomes torque value.Display 173 shows torque value.So, user, in the time of operation electronic type torsional force wrench of the present utility model, just can see from display 173 torque value being applied to up till now workpiece at any time.
Fig. 7 to 9 is schematic diagrames of the second preferred embodiment of electronic type torsional force wrench of the present utility model, and the difference with the first preferred embodiment of this preferred embodiment is, electronic type torsional force wrench 30 does not comprise the tool heads of electronic type torsional force wrench 10.As shown in Fig. 7 and 8, the torsion force measuring device 31 of electronic type torsional force wrench 30 of the present utility model comprises that a connecting rod 33, a sensor 35, hold cover 37 and a calculation element 39.
Connecting rod 33, sensor 35 and to hold cover 37 structure, connection, running and object be with connecting rod, the sensor of the first preferred embodiment and to hold cover identical, repeat no more in this.
Especially, as shown in Fig. 8 and 9, calculation element 39 also has an input block 395.Input block 395 concatenation operation circuit 391, and for input one numerical value, numerical value is that sensor 35 is to the distance B between the pivot of tool heads 50.Computing circuit 391 is to become torque value according to numerical value and sensing signal computing.
Physically, the operational formula of torque value is that power is multiplied by the arm of force, and the arm of force is exactly the distance of the point of application to pivot, correspond to the present embodiment, above-mentioned power is exactly that sensor 35 senses the sensing signal that external force produces, and the arm of force is exactly the distance B (be numerical value) of sensor 35 to tool heads 50 pivots.Operational formula by torque value is known, due to length and the specification difference of tool heads, namely the pivot position of tool heads is also different, therefore, when replacing after tool heads, the arm of force (being numerical value) also can change, so, the utility model provides input block 395 to input more accurate arm of force value, to obtain more realistic torque value.If but tool heads 111 is not replaceable, input block 395 can be omitted need not.
Wherein, touch control screen or other input units that input block 395 can be numeric keypad, combine with display 393, therefore input block 395 is not with the above-mentioned limit that is exemplified as.
Referring again to Fig. 7, because connecting rod 33 has the setting of front port 331, therefore, user can certainly be about to Wrench (being tool heads 50) and insert from front port 331, and forms electronic type torsional force wrench 30, as shown in Figure 8.
Really can reach the purpose of this utility model by the known electronic type torsional force wrench of the present utility model of above-mentioned explanation.
Finally, again emphasize, the utility model is taken off disclosed composed component in embodiment in front, only for illustrating, is not used for limiting the protection domain of this case, the alternative or variation of other equivalence elements, and the claim that also should be this case contains.
Claims (10)
1. an electronic type torsional force wrench, is characterized in that, comprising:
One wrench body, has a connecting rod and a tool heads, and this connecting rod has forward and backward two-port, and this tool heads connects this connecting rod, and the front port of this connecting rod stretches out certainly;
One sensor, produce a sensing signal according to its stressed degree, and there is a canned paragraph, a strain section and one stressed section, this canned paragraph connects the connecting rod of this wrench body, and be positioned at the front end of this strain section, the rear end of this strain section protrudes out the rear port of this connecting rod, and this stressed section is positioned at the rear end of this strain section;
One holds cover, is socketed on the connecting rod of this wrench body, and connects stressed section of this sensor; And
One calculation element, is electrically connected this sensor, and receives this sensing signal and be processed into a torque value.
2. electronic type torsional force wrench according to claim 1, it is characterized in that, this connecting rod has a through hole, and this through hole is communicated with front port and the rear port of this connecting rod, the canned paragraph of this sensor is fixed in the through hole of this connecting rod, and the strain section of this sensor has a perforation.
3. electronic type torsional force wrench according to claim 1 and 2, is characterized in that, this holds cover a projection and an inner ring surface, and this projection protrudes out this inner ring surface, and stressed section of this sensor of butt.
4. electronic type torsional force wrench according to claim 1 and 2, is characterized in that, this hold cover have at least one bolt, this bolt to be spirally connected this holds cover and stressed section of this sensor.
5. electronic type torsional force wrench according to claim 1, it is characterized in that, this calculation element is located at the connecting rod of this wrench body, this calculation element has a computing circuit and connects a display of this computing circuit, this sensing signal computing is become this torque value by this computing circuit, and this display shows this torque value.
6. a torsion force measuring device for electronic type torsional force wrench, is characterized in that, comprising:
One connecting rod;
One sensor, produces a sensing signal according to its stressed degree, and has a canned paragraph, a strain section and one stressed section, this canned paragraph connects this connecting rod, and be positioned at the front end of this strain section, the rear end of this strain section protrudes out this connecting rod, this stressed section is positioned at the rear end of this strain section;
One holds cover, is socketed on this connecting rod, and connects stressed section of this sensor; And
One calculation element, is electrically connected this sensor, and receives this sensing signal and be processed into a torque value.
7. the torsion force measuring device of electronic type torsional force wrench according to claim 6, it is characterized in that, this connecting rod has a front port, a rear port and a through hole, front port and the rear port of this this connecting rod of through hole UNICOM, the canned paragraph of this sensor is positioned at the through hole of this connecting rod, and stressed section of this sensor is positioned at outside the rear port of this connecting rod.
8. according to the torsion force measuring device of the electronic type torsional force wrench described in claim 6 or 7, it is characterized in that, this holds cover a projection and an inner ring surface, and this projection protrudes out this inner ring surface, and against stressed section of this sensor.
9. according to the torsion force measuring device of the electronic type torsional force wrench described in claim 6 or 7, it is characterized in that, this hold cover have at least one bolt, this bolt to be spirally connected this holds cover and stressed section of this sensor.
10. the torsion force measuring device of electronic type torsional force wrench according to claim 6, it is characterized in that, this calculation element is located on this connecting rod, this calculation element has a computing circuit, a display and an input block, this computing circuit connects this display and this input block, and this sensing signal computing is become to this torque value, and this display shows this torque value, this input block is for input one numerical value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320883734.XU CN203696861U (en) | 2013-12-30 | 2013-12-30 | Electronic torque wrench and torque measuring device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320883734.XU CN203696861U (en) | 2013-12-30 | 2013-12-30 | Electronic torque wrench and torque measuring device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203696861U true CN203696861U (en) | 2014-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320883734.XU Expired - Fee Related CN203696861U (en) | 2013-12-30 | 2013-12-30 | Electronic torque wrench and torque measuring device thereof |
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| Country | Link |
|---|---|
| CN (1) | CN203696861U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104742053A (en) * | 2013-12-30 | 2015-07-01 | 杨先民 | Electronic torque wrench and torque measuring device thereof |
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2013
- 2013-12-30 CN CN201320883734.XU patent/CN203696861U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104742053A (en) * | 2013-12-30 | 2015-07-01 | 杨先民 | Electronic torque wrench and torque measuring device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 |