CN204422120U - Solid of revolution torsion-testing sensor - Google Patents
Solid of revolution torsion-testing sensor Download PDFInfo
- Publication number
- CN204422120U CN204422120U CN201520106747.5U CN201520106747U CN204422120U CN 204422120 U CN204422120 U CN 204422120U CN 201520106747 U CN201520106747 U CN 201520106747U CN 204422120 U CN204422120 U CN 204422120U
- Authority
- CN
- China
- Prior art keywords
- solid
- revolution
- rotating shaft
- axle sleeve
- dynamometry
- 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
Links
- 239000007787 solid Substances 0.000 title claims abstract description 45
- 238000012360 testing method Methods 0.000 title claims abstract description 14
- 230000000903 blocking effect Effects 0.000 claims abstract description 9
- 238000006073 displacement reaction Methods 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 abstract description 2
- 239000011888 foil Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model discloses a kind of solid of revolution torsion-testing sensor, in this device, solid of revolution and dynamometry axle sleeve all with rotating shaft clearance fit, dynamometry axle sleeve is connected by key with rotating shaft, and dynamometry axle sleeve is fixedly connected with solid of revolution; Axle head screw to be pressed on pad and to be fixedly connected with rotating shaft; Solid of revolution axial location blocking pin is arranged in rotating shaft, the axial displacement of restriction solid of revolution; Two 180 °, resistance strain gage interval symmetries are pasted onto the both sides of the external cylindrical surface of dynamometry axle sleeve, are connected into full-bridge circuit, and are connected with wireless torque node by wire; Measure solid of revolution transmit moment of torsion time, do not need solid of revolution rotating shaft to block, and by torque sensor two block axle couple together measurement solid of revolution moment of torsion, when measuring torque, to rotator shaft not damaged, installing space is little, cost of manufacture is low, and measuring accuracy is high.
Description
Technical field
The utility model relates to torsion-testing sensor, especially relates to a kind of solid of revolution torsion-testing sensor.
Background technology
Solid of revolution common in machine has gear, belt wheel, sprocket wheel and wheel etc., when planing machine, needs the moment of torsion knowing that machine solid of revolution transmits.Traditional method is blocked installing back the rotating shaft of turning, by a torque sensor, the rotating shaft that two are blocked is linked together again, measure solid of revolution by this torque sensor and be delivered to Shaft Torque, or measure the moment of torsion that rotating shaft is delivered to solid of revolution, this method is measured reliable, but, in working site, the position of this torque sensor is not often installed, does not allow rotating shaft to block yet; Moment of torsion wireless test apparatus can measure the Shaft Torque that appearance does not have protective device when not blocking rotating shaft, but the rotating shaft of machine is usually covered by some structural members, or does not have space mounting wireless test apparatus; Someone passes through to paste foil gauge on belt wheel, measures the moment of torsion that belt wheel transmits, but this method demarcates difficulty, little belt wheel is pasted foil gauge very difficult, or impossible; Someone have devised the torque sensor of special test wheel, and this sensor can also measure the acting force that wheel is subject at different directions simultaneously, but this sensor construction is very complicated, and price is very high, and general unit can not afford at all.So, need a kind of structure simple in industry, solid of revolution torque sensor easy for installation.
Summary of the invention
The purpose of this utility model is complicated for existing torsion-testing sensor construction, can not to adapt to some occasion real-time testing dynamic torques deficiency, provides a kind of solid of revolution torsion-testing sensor.
In order to achieve the above object, the technical solution adopted in the utility model is: a kind of solid of revolution torsion-testing sensor, and it comprises rotating shaft, axle head screw, pad, key, wireless torque node, resistance strain gage, dynamometry axle sleeve, solid of revolution, solid of revolution axial location blocking pin; Wherein, described solid of revolution and dynamometry axle sleeve all with rotating shaft clearance fit, dynamometry axle sleeve is connected by key with rotating shaft, and dynamometry axle sleeve is fixedly connected with by flange screw with solid of revolution; Axle head screw is pressed on pad, and is fixedly connected with rotating shaft; Solid of revolution axial location blocking pin is arranged in rotating shaft, the axial displacement of restriction solid of revolution; Two 180 °, resistance strain gage interval symmetries are pasted onto the both sides of the external cylindrical surface of dynamometry axle sleeve, and are connected into full-bridge circuit, and the axial location of resistance strain gage is between the flange and key of dynamometry axle sleeve; Wireless torque node is pasted or is bundled on the external cylindrical surface of dynamometry axle sleeve; Two resistance strain gages are connected with wireless torque node by wire.
Compared with prior art, the beneficial effect had is the utility model:
1, measure solid of revolution transmit moment of torsion time, do not need solid of revolution rotating shaft to block, and by torque sensor two block axle couple together measurement solid of revolution moment of torsion.When measuring torque, to rotator shaft not damaged.
2, owing to adopting stickup foil gauge to measure moment of torsion, measuring principle is simple, and jig Design is convenient, thus makes this torque sensor easy to make, and cost of manufacture is low, and measuring accuracy is high.
3, due to foil gauge and wireless torque node volume little, so required installing space is little.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure: rotating shaft 1, axle head screw 2, pad 3, key 4, wireless torque node 5, resistance strain gage 6, dynamometry axle sleeve 7, flange screw 8, solid of revolution 9, solid of revolution axial location blocking pin 10, radio network gateway 11.
Embodiment
As shown in Figure 1, the utility model comprises rotating shaft 1, axle head screw 2, pad 3, key 4, wireless torque node 5, resistance strain gage 6, dynamometry axle sleeve 7, flange screw 8, solid of revolution 9, solid of revolution axial location blocking pin 10, radio network gateway 11.
Solid of revolution 9 and dynamometry axle sleeve 7 and rotating shaft 1 clearance fit, dynamometry axle sleeve 7 is connected with rotating shaft 1 by key 4, and flange screw 8 is fixedly connected with dynamometry axle sleeve 7 with solid of revolution 9; Axle head screw 2 is pressed on pad 3, is fixedly connected with rotating shaft 1, and to prevent dynamometry axle sleeve 7 from slippage to the right rotating shaft 1, solid of revolution axial location blocking pin 10 limits the axial displacement of solid of revolution 9.Resistance strain gage 6 is halved and is pasted onto on the external cylindrical surface of dynamometry axle sleeve 7, and its axial location is between the flange and key 4 of dynamometry axle sleeve 7; Two resistance strain gages 6 are connected into full-bridge circuit, for testing the load torque of dynamometry axle sleeve 7, wireless torque node 5 is pasted or is bundled on the external cylindrical surface of dynamometry axle sleeve 7, and launch resistance-strain signal for gathering, resistance strain gage 6 is connected with wireless torque node 5 by wire; Radio network gateway 11 is connected with computing machine, for the resistance-strain signal that real-time reception wireless torque node 5 emits.
Because solid of revolution 9 and dynamometry axle sleeve 7 are clearance fit with rotating shaft 1, the power in rotating shaft 1 only has and just can be delivered on solid of revolution 9 through key 4, dynamometry axle sleeve 7 and flange screw 8.Dynamometry axle sleeve 7 is in the process transmitting moment of torsion in rotating shaft 1, its external cylindrical surface produces torsional deflection, the resistance strain gage 6 be pasted onto on the external cylindrical surface of dynamometry axle sleeve 7 also produces distortion, cause the change of foil gauge resistance, thus change the change of whole full-bridge circuit voltage, wireless strain signal is changed into, the strain signal that computing machine is emitted by radio network gateway 11 real-time reception wireless torque node 5 by wireless torque node 5, and by formula
calculate the moment of torsion between rotating shaft 1 and solid of revolution 9; Wherein,
for moment of torsion,
for the diameter of dynamometry axle sleeve 7 external cylindrical surface,
for the diameter of bore of dynamometry axle sleeve 7,
for the elastic modulus of dynamometry axle sleeve 7 material,
for the Poisson ratio of dynamometry axle sleeve 7 material,
for shear strain.
Claims (1)
1. a solid of revolution torsion-testing sensor, it is characterized in that, it comprises rotating shaft (1), axle head screw (2), pad (3), key (4), wireless torque node (5), resistance strain gage (6), dynamometry axle sleeve (7), solid of revolution (9), solid of revolution axial location blocking pin (10); Wherein, described solid of revolution (9) and dynamometry axle sleeve (7) all with rotating shaft (1) clearance fit, dynamometry axle sleeve (7) is connected by key (4) with rotating shaft (1), and dynamometry axle sleeve (7) is fixedly connected with by flange screw (8) with solid of revolution (9); Axle head screw (2) is pressed on pad (3), and is fixedly connected with rotating shaft (1); Solid of revolution axial location blocking pin (10) is arranged in rotating shaft (1), the axial displacement of restriction solid of revolution (9); Two resistance strain gage (6) 180 °, interval symmetries are pasted onto the both sides of the external cylindrical surface of dynamometry axle sleeve (7), and are connected into full-bridge circuit, and the axial location of resistance strain gage (6) is between the flange and key (4) of dynamometry axle sleeve (7); Wireless torque node (5) is pasted or is bundled on the external cylindrical surface of dynamometry axle sleeve (7); Two resistance strain gages (6) are connected with wireless torque node (5) by wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520106747.5U CN204422120U (en) | 2015-02-15 | 2015-02-15 | Solid of revolution torsion-testing sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520106747.5U CN204422120U (en) | 2015-02-15 | 2015-02-15 | Solid of revolution torsion-testing sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204422120U true CN204422120U (en) | 2015-06-24 |
Family
ID=53472477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520106747.5U Expired - Fee Related CN204422120U (en) | 2015-02-15 | 2015-02-15 | Solid of revolution torsion-testing sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204422120U (en) |
-
2015
- 2015-02-15 CN CN201520106747.5U patent/CN204422120U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20150624 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |