CN2638930Y - Improved electronic wrench - Google Patents
Improved electronic wrench Download PDFInfo
- Publication number
- CN2638930Y CN2638930Y CN 03264688 CN03264688U CN2638930Y CN 2638930 Y CN2638930 Y CN 2638930Y CN 03264688 CN03264688 CN 03264688 CN 03264688 U CN03264688 U CN 03264688U CN 2638930 Y CN2638930 Y CN 2638930Y
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- CN
- China
- Prior art keywords
- drive division
- spanner
- building brick
- electronic building
- sensing
- 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.)
- Expired - Fee Related
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model relates to an improved electronic spanner. The utility model includes a body, a drive part, and a torsion detection electronic component; wherein the body is at least provided with a drive part at one end and a torsion detection electronic component as well; and at least one distortion rod is arranged in the inner part between the electronic component and the drive part; wherein the distortion prod is made of materials with the rigidness lower than the materials of the body; while a plurality of communicated induction sheets are arranged at one end of the electronic component closing to the drive part; and the electronic component and distortion rod are arranged in the spanner; the volume of the spanner and outer form can not be impacted or changed, thus facilitating the operation of the user.
Description
Technical field
The utility model relates to a kind of hand-operated tools, relates in particular to a kind of deflection of sensing unlike material, and improves the improved Electronic spanners of the sensitivity of sensing torsion.
Background technology
General common spanner is used for group more and unloads spiro connecting pieces such as screw, nut, it must impose certain strength to screw or to unscrew spiro connecting pieces such as screw, nut to spanner, if the application of force is excessive when surpassing the torsion that spiro connecting piece can bear, can cause spiro connecting piece to collapse the situation of tooth, especially accurate mechanically, each spiro connecting piece all has certain torque value, and the torque value that just must be screw-coupled to just can not damage parts.But general spanner does not all have the structure of piece capable of sensing twisting force value, therefore, and in operation accurate application of force during spanner.
For this reason, the dealer develops a kind of spanner of piece capable of sensing twisting force value, as shown in Figure 6, it is the pressure sensor 6 that is provided with an electronic type in spanner 5 stage casings, when between the drive end 51 of spanner 5 and force side 52, having relative pressure, pressure sensor 6 can record force value, and shows the numerical value of torsion.Yet, the pressure sensor 6 of this electronic type bulky, go up can be influential in operation to spanner 5 itself, and can't use in narrow and small working space.
For improving the bulky shortcoming of aforementioned spanner because of the pressure sensor of electronic type, and the spanner of another kind of piece capable of sensing twisting force value is arranged, as shown in Figure 7, it is to be provided with an integrated assembly 8 on the lever 7 of spanner, be provided with the assembly of whiston bridge circuit, amplifier, logger, data processor and display etc. in this integrated assembly 8, and this integrated assembly 8 is communicated with a tension gauge 81 respectively at the two ends of spanner bandle 7.When to the spanner application of force, the resistance change that this tension gauge 81 predicts can be by converting resistance change to output voltage by whiston bridge circuit, via amplifier, logger, data processor etc., numerical value is shown on this display, and learns torque value.
Because the deflection that this tension gauge 81 is sensing spanners changes resistance value, and learns that what torsion spanner impose to spiro connecting piece.Yet this spanner is many to be material with cast iron, and its hardness is higher, and the deflection that produces during the application of force is more not obvious relatively, causes the sensitivity of spanner sensing torsion to reduce, and can't be applicable to and must more precisely learn on the workpiece of torsion.
Moreover above-mentioned spanner is to be provided with integrated assembly 8 on lever 7, though the volume of the electronic pressure sensor of the more aforementioned spanner of volume of this integrated assembly 8 is little, but still can protrude fixing volume on the lever 7 of spanner, and the operation that makes spanner is not still not smoothly.
Dying, how to improve the shortcoming of the spanner of existing piece capable of sensing twisting force value, then is the improved emphasis of the utility model.
The utility model content
In order to overcome the above-mentioned shortcoming of the spanner existence that has the piece capable of sensing twisting force value now, the utility model provides a kind of improved Electronic spanners, the utility model improves the sensitivity of sensing torsion, its deformed rod and electronic building brick are to be located in this wrench body, volume and profile for spanner can not exert an influence or change, and allow the user operation during spanner very smoothly.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of improved Electronic spanners comprises the electronic building brick of body, drive division, piece capable of sensing twisting force; It is characterized in that, at least one end of described body has a drive division, this body is provided with the electronic building brick of described piece capable of sensing twisting force, this body interior is provided with at least one deformed rod between this electronic building brick and this drive division, this deformed rod is made with the material that hardness is lower than this body hardness, and this electronic building brick is provided with the sensing chip that several are connected in this deformed rod near an end of this drive division.
The beneficial effects of the utility model are, its deformed rod and electronic building brick are to be located in this wrench body, can not exert an influence or change for the volume and the profile of spanner, and allow the user when the operation spanner very smoothly.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a stereoscopic schematic diagram of the present utility model
Fig. 2 is a vertical view of the present utility model
Fig. 3 is a sectional view of the present utility model
Schematic diagram when Fig. 4 is the utility model operation
Fig. 5 is the schematic diagram of the utility model second embodiment
Fig. 6 is the existing schematic diagram that can show the torque value spanner
Fig. 7 is the schematic diagram that existing another kind can show the torque value spanner
The specific embodiment
Seeing also Fig. 1 to Fig. 4, is the first selected embodiment of the utility model shown in the figure.
The utlity model has a body 1, the two ends of this body 1 have one first drive division 11 and one second drive division 12 respectively, in the present embodiment, first drive division 11 is an ostiolate fixedly blade of a sword, second drive division 12 is a quincunx sealing end, the central authorities of body 1 establish the electronic building brick 2 of a piece capable of sensing twisting force, and this body 1 inside is extended a deformed rod 3 at the two ends of this electronic building brick 2 respectively to first drive division 11 and second drive division 12.Each deformed rod 3 is extended first drive division 11 and second drive division 12 that approaches to this body 1 respectively, each deformed rod 3 is to make with the material that hardness is lower than this body 1 hardness, in the present embodiment, this body 1 is to make with iron material matter, and this deformed rod 3 is to make with aluminium material.
Above-mentioned electronic building brick 2 includes whiston bridge circuit, amplifier, logger, data processor and display, and this electronic building brick 2 is respectively equipped with the sensing chip 21 of several known resistances in each deformed rod 3 near an end of first drive division 11 and second drive division 12, and each sensing chip 21 is connected with this electronic building brick 2 with lead 22 respectively.This sensing chip 21 is the commercially available prod, and its adopted name is a strain gauge.
Whereby, when spanner is spirally connected workpiece with first drive division 11 or second drive division 12, it is near the deformed rod of first drive division 11 or second drive division 12, can be out of shape because of the application of force, each sensing chip 21 then can be responded to strength and the distortion that this deformed rod 3 is subjected in first drive division 11 or second drive division, 12 places, because of resistance is directly proportional with unit length, and the variable quantity that is inversely proportional to unit are, again because different materials has different resistance coefficients, convert resistance change to output voltage via whiston bridge circuit, through amplifier signal is amplified, through logger, data processor converts analog signal to digital signal, again numerical value is shown on the display, and can learns torque value.
Because the material of this deformed rod 3 is low than the hardness of the material of this body 1, therefore to the spanner application of force time, this deformed rod 3 can be out of shape prior to body 1, makes this sensing sheet 21 can sense the resistance change that produces because of deformed rod 3 distortion as early as possible, and the sensitivity that improves sensing torsion.
Moreover, the sensing chip 21 of this electronic building brick 2 is first drive division 11 and second drive divisions 12 that approach body 1, and first drive division 11 of this body 1 and second drive division 12 are the most direct stressed places, so the resistance change that this sensing chip 21 is responded to is stronger, and can accurate sensing torque value.
In addition, deformed rod 3 is to be located in this wrench body 1 with electronic building brick 2, can not exert an influence or change for volume and the profile of spanner, and allow the user when operating spanner very smoothly.
In the present embodiment, this deformed rod 3 is to make with aluminium material, can also the lower material of hardness make certainly, makes this sensing sheet 21 can more early sense the resistance change that produces because of deformed rod 3 distortion, the sensitivity that further improves sensing torsion.
In addition, deformed rod of the present utility model also can apply to box spanner, as shown in Figure 5, be second embodiment of the present utility model, wherein this box spanner has a lever 4, and these lever 4 one ends have the drive division 41 of a tool ratchet, and is provided with above-mentioned electronic building brick 2 in the middle of this lever 4, and this lever is provided with deformed rod 3 in the inside of 41 of this electronic building brick 2 and drive divisions, and this electronic building brick 2 is provided with the sensing chip 21 of several known resistances near these drive division 41 places in this deformed rod 3.Borrow the sensing sheet 21 of this electronic building brick 2 again, the resistance change that sensing produces because of the distortion of this deformed rod 3, the torque value when learning the box spanner operation.
Claims (3)
1. improved Electronic spanners comprises the electronic building brick of body, drive division, piece capable of sensing twisting force; It is characterized in that, at least one end of described body has a drive division, this body is provided with the electronic building brick of described piece capable of sensing twisting force, this body interior is provided with at least one deformed rod between this electronic building brick and this drive division, this deformed rod is made with the material that hardness is lower than this body hardness, and this electronic building brick is provided with the sensing chip that several are connected in this deformed rod near an end of this drive division.
2. improved Electronic spanners according to claim 1, the two ends that it is characterized in that described body have one first drive division and one second drive division respectively, the central authorities of this body are provided with the electronic building brick of described piece capable of sensing twisting force, and this body interior is extended described deformed rod at the two ends of this electronic building brick respectively to this first drive division and this second drive division, each deformed rod is extended respectively and is approached to described first drive division and second drive division, this electronic building brick is respectively equipped with several described sensing chips in each deformed rod near an end of first drive division and second drive division, and each sensing chip is connected with electronic building brick with lead respectively.
3. improved Electronic spanners according to claim 1 is characterized in that described body is to make with iron material matter, and described deformed rod is made with aluminium material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03264688 CN2638930Y (en) | 2003-06-23 | 2003-06-23 | Improved electronic wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03264688 CN2638930Y (en) | 2003-06-23 | 2003-06-23 | Improved electronic wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2638930Y true CN2638930Y (en) | 2004-09-08 |
Family
ID=34297440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03264688 Expired - Fee Related CN2638930Y (en) | 2003-06-23 | 2003-06-23 | Improved electronic wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2638930Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100432644C (en) * | 2005-12-19 | 2008-11-12 | 谢智庆 | Torque sensor of torque wrench |
-
2003
- 2003-06-23 CN CN 03264688 patent/CN2638930Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100432644C (en) * | 2005-12-19 | 2008-11-12 | 谢智庆 | Torque sensor of torque wrench |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040908 Termination date: 20110623 |