CN206146575U - Torque sensor - Google Patents
Torque sensor Download PDFInfo
- Publication number
- CN206146575U CN206146575U CN201621093444.5U CN201621093444U CN206146575U CN 206146575 U CN206146575 U CN 206146575U CN 201621093444 U CN201621093444 U CN 201621093444U CN 206146575 U CN206146575 U CN 206146575U
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- shell
- torque sensor
- bearing
- rotating shaft
- ring
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Abstract
The utility model discloses a torque sensor aims at providing a torque sensor who has the advantage that the countershaft rotary jamming is few, and its technical scheme main points are, be equipped with the packing ring between bearing and the shell, the internal diameter of packing ring is greater than the internal diameter of bearing, it is the annular snap ring of circle to be provided with a plurality of on the shell, the snap ring towards pivot direction protrusion and the butt on the packing ring, the shell was to the interference of bearing and pivot when the packing ring can reduce bearing rotating, can also play sealed effect to the bearing, prevent the entering of lubricant discharge and dust, torque -increasing measuring accuracy, the snap ring has replaced the end cover simultaneously, with the packing ring, bearing and commentaries on classics the shaft position relatively fixed, the area of snap ring is less, can rotating of countershaft not produce the interference, can further promote torque sensor measuring accuracy.
Description
Technical field
This utility model is related to torque detecting apparatus field, more particularly to a kind of torque sensor.
Background technology
Torque sensor is the detection instrument to perceiving to torsional moment on various rotations or non-rotary mechanical part.Moment of torsion
The physical change of torsion can be converted into the accurate signal of telecommunication by sensor, and torque sensor can be applied in manufacture viscometer,
It is electronic（It is pneumatic, fluid power）Torque spanner, it has a high precision, and frequency response is fast, good reliability, the advantages of life-span length.
At present, torque sensor on the market generally comprises the elements such as shell, rotating shaft and foil gauge composition, will using bearing
Rotating shaft is fixed on inside the shell, and foil gauge and coil are arranged in rotating shaft, then drives rotating shaft rotation, strain by detected element
Piece rotates and detects change in torque with rotating shaft.
The two ends of this torque sensor rotating shaft are generally provided with end cap, for the bearing at rotating shaft two ends is fixed and
It is spacing, rotating shaft is prevented in the sliding of inside the shell, while can be sealed for shell, but sealed by end cap and limited
Position, end cap must be fitted close between bearing and shell, therefore sometimes end cap can interfere with the rotation of end cap, be foil gauge
Torque measurement brings error.
Utility model content
The purpose of this utility model is to provide a kind of torque sensor, and it has the advantages that countershaft rational disturbance is few.
Above-mentioned technical purpose of the present utility model technical scheme is that：
A kind of torque sensor, including shell, two ends be rotatably connected on the rotating shaft of inside the shell by bearing, the bearing with
Packing ring is provided between shell, the internal diameter of packing ring is provided with several in circular snap ring, card more than the internal diameter of bearing on shell
Ring protrudes and is connected on packing ring towards rotor shaft direction.
It is arranged such, rotating shaft is fixed on inside the shell by bearing, can be rotated in bearing, the setting of packing ring will be outer
Shell separates with bearing, and shell is to bearing and the interference of rotating shaft when preventing bearing rotary, moreover it is possible to plays sealing function to bearing, prevents
The entrance of outflow of lubrication oil and dust, the internal diameter of packing ring then will not be hindered during axis of rotation more than the internal diameter of bearing by packing ring
Hinder, make the rotation of rotating shaft more flexible, reduce extraneous interference, increase the accuracy of torque measurement, while snap ring instead of end
Lid, the position of packing ring, bearing and rotating shaft is relatively fixed, the area of snap ring is less, will not countershaft rotation produce interference, can
Further to lift the accuracy of torque sensor measurement.
Further arrange：The snap ring is 2, and 60 ° of angles are constituted between two snap rings.
It is arranged such, snap ring quantity can just fix on packing ring for 2, plays spacing effect, and structure between snap ring
Into 60 ° of angles angle between snap ring can be prevented too little and cause fixed shakiness, the quantity of snap ring can be reduced as far as, be dropped
The step of material needed for low production, save production cost.
Further arrange：The rotating shaft includes axostylus axostyle and the axle sleeve being set on axostylus axostyle, and the first wire casing is offered on axle sleeve
With the second wire casing, two wire casings are identical and are wound with some circle copper wires.
It is arranged such, axostylus axostyle drives axle sleeve to rotate together, and the effect of the first wire casing and the second wire casing is to facilitate copper wire in axle
The winding of set, the effect of two wire casings is the information to form induction coil and transmit change in torque received by foil gauge,
Again torque information is transferred to into the purpose that the external world reaches measurement moment of torsion.
Further arrange：The axle sleeve is provided with retainer ring, the diameter with diameter greater than axle sleeve of retainer ring, ring in retainer ring
Around being provided with several fixing tooths.
It is arranged such, because the change of moment of torsion is caused by the change of rotating shaft, and is measured by foil gauge, therefore
Need to keep certain distance between rotating shaft and shell, prevent rotating shaft and shell from producing interference, affect certainty of measurement, retainer ring sets
Putting can separate rotating shaft and shell, and the setting of fixing tooth facilitates the measurement of rotating shaft and axle sleeve in the anglec of rotation of inside the shell,
The precision of rotation and torque measurement can be made higher.
Further arrange：The shell is in cuboid, and shell one side is provided with information transfer mouth, the both sides of information transfer mouth
Face is respectively the two ends of rotating shaft.
It is arranged such, because the position of two wire casings is located on axle sleeve, axle sleeve is located at the centre position of rotating shaft, information transfer
Mouth is located on the rotating shaft median surface of shell the connection that can facilitate the coil on axle sleeve and information transfer mouth, so as to facilitate moment of torsion to believe
The transmission of breath.
Further arrange：The axostylus axostyle is provided with size and foil gauge identical groove, and foil gauge is viscous by metal glue
Close in groove.
It is arranged such, foil gauge is directly sticked on axostylus axostyle, therefore it can rotate with the rotation of rotating shaft, so as to
More accurately measurement data is accessed, better measurement effect is reached.
Further arrange：Axle center is provided with four identical fan grooves on the axostylus axostyle, it is one of fan-shaped
Foil gauge is provided with groove.
It is arranged such, due to the setting of fan groove, axostylus axostyle herein is more weak, under same moment of torsion, axostylus axostyle rotation
Variable quantity it is more, then by foil gauge in the fan groove, foil gauge can be made to receive more complete and accurate moment of torsion and to be become
Change, further improve certainty of measurement.
Preferably, the foil gauge is connected to the first wire casing by lead, the second wire casing is connected to information by lead
Transmission mouth.
It is arranged such, the change in torque situation for receiving is delivered to foil gauge the copper wire in the first wire casing, then by
Change in torque situation is transported to information transfer mouth and is transferred to the external world by the coil in two wire casings, reach good measurement effect and
Accurate measurement result.
In sum, this utility model has the advantages that：
Shell is to bearing and the interference of rotating shaft when packing ring can reduce bearing rotary, moreover it is possible to play sealing function to bearing, prevents
The only entrance of outflow of lubrication oil and dust, increases the accuracy of torque measurement, while snap ring instead of end cap, by packing ring, bearing
Be relatively fixed with the position of rotating shaft, the area of snap ring is less, will not countershaft rotation produce interference, can further lift torsion
The accuracy of square sensor measurement.
Description of the drawings
Fig. 1 is the structural representation of embodiment 1；
Fig. 2 is the structural representation of rotating shaft in embodiment 1；
Fig. 3 is the structural representation of rotating shaft in embodiment 2.
In figure, 1, shell；2nd, rotating shaft；21st, axostylus axostyle；211st, keyway；22nd, axle sleeve；221st, the first wire casing；222nd, the second line
Groove；223rd, retainer ring；224th, fixing tooth；3rd, bearing；4th, packing ring；5th, snap ring；6th, information transfer mouth；7th, groove；8th, foil gauge；9、
Fan groove.
Specific embodiment
This utility model is described in further detail below in conjunction with accompanying drawing.
Embodiment 1：A kind of torque sensor, as shown in figure 1, outermost layer is shell 1, shell 1 is made of metal, and its
Top is rectangular, and in inverted trapezoidal, the top of shell 1 is the information transfer mouth 6 of torque sensor, information transfer mouth for lower section
6 are fixed by hex nut, can be transmitted the torque data for measuring to the external world by it and are analyzed.
Referring to Fig. 1, rotating shaft 2 is provided with the shell 1 of the bottom of information transfer mouth 6, rotating shaft 2 sets along the fore-and-aft direction of shell 1
Put, and penetrate shell 1 and arrange, shell 1 offers installing hole with the junction of rotating shaft 2, and bearing 3, axle are arranged with axostylus axostyle 21
Hold 3 outsides and be fixed with packing ring 4, the internal diameter of packing ring 4 more than bearing 3 internal diameter, i.e., packing ring 4 not with the directly contact of rotating shaft 2, so may be used
To reduce the interference of the countershaft 2 of packing ring 4, so as to reach more accurately torque measurement result, the shell 1 at installing hole is provided with two
Individual snap ring 5, snap ring 5 is shaped as annular shape, and raised towards the side of rotating shaft 2, and packing ring 4 is blocked into main and spacing, two snap rings 5
Between angle be 60 °.
As shown in Fig. 22 points of rotating shaft is two parts, one is axostylus axostyle 21, and it two is axle sleeve 22, and axostylus axostyle 21 is passed through in shaft-like
Whole shell 1 is worn, axle sleeve 22 is set on axostylus axostyle 21, and the position kept right in the middle of axostylus axostyle 21, the two ends point of axostylus axostyle 21
Keyway 211 is not provided with, the key that keyway 211 is used is flat key, therefore keyway 211 is elongate in shape, is rectangular in the middle of keyway 211
Shape, two ends are in semicircle shape.
Referring to Fig. 2, the axostylus axostyle 21 in the left side of axle sleeve 22 is provided with groove 7, groove 7 and sets foil gauge 8 by the way that metal glue is viscous,
Foil gauge 8 is square setting, and the leftmost side of axle sleeve 22 is provided with retainer ring 223, retainer ring 223 it is any with diameter greater than in rotating shaft 2
At one, wrapping around for retainer ring 223 is provided with several fixing tooths 224, makes retainer ring 223 in gear-like, and fixing tooth 224 can
With the angular quantification for rotating rotating shaft 2, the angle for turning over can be converted into through fixing tooth 224 number, facilitate operator
Member is counted.
As shown in Fig. 2 the axle sleeve 22 on the right side of retainer ring 223 is provided with the first wire casing 221 and the second wire casing 222, two lines
Groove is identical, and volume is provided with some circle copper wires, and foil gauge 8 is connected on the copper wire in the first wire casing 221 by lead,
Again by the second wire casing 222 copper wire by transmit information conveyance to information transfer mouth 6, so as to complete the measurement of moment of torsion.
Embodiment 2：A kind of torque sensor, be with the difference of embodiment 1, as shown in figure 3, the right side of axostylus axostyle 21
Four fan grooves 9 are provided with, fan groove 9 hollows out axostylus axostyle 21, axostylus axostyle 21 is distributed in " ten " font, in one of fan groove 9
Groove 7 is provided with, is glued in groove 7 and is set foil gauge 8, can so increase variable quantity of the axostylus axostyle 21 under moment of torsion effect, increase moment of torsion
The degree of accuracy of measurement.
The above embodiments are only that it is not to restriction of the present utility model, ability to explanation of the present utility model
Field technique personnel can make as needed the modification without creative contribution after this specification is read to the present embodiment, but
As long as all being protected by Patent Law in right of the present utility model.
Claims (8)
1. a kind of torque sensor, including shell（1）, two ends pass through bearing（3）It is rotatably connected on shell（1）Interior rotating shaft（2）,
It is characterized in that：The bearing（3）With shell（1）Between be provided with packing ring（4）, packing ring（4）Internal diameter be more than bearing（3）It is interior
Footpath, shell（1）On be provided with several in circular snap ring（5）, snap ring（5）Towards rotating shaft（2）Protrude and abut in direction
In packing ring（4）On.
2. torque sensor according to claim 1, it is characterised in that：The snap ring（5）For 2, two snap rings（5）It
Between constitute 60 ° of angles.
3. torque sensor according to claim 1, it is characterised in that：The rotating shaft（2）Including axostylus axostyle（21）Be arranged
In axostylus axostyle（21）On axle sleeve（22）, axle sleeve（22）On offer the first wire casing（221）With the second wire casing（222）, two wire casings
It is identical and be wound with some circle copper wires.
4. torque sensor according to claim 3, it is characterised in that：The axle sleeve（22）It is provided with retainer ring（223）,
Retainer ring（223）With diameter greater than axle sleeve（22）Diameter, retainer ring（223）On be surrounded with several fixing tooths（224）.
5. torque sensor according to claim 4, it is characterised in that：The shell（1）In cuboid, shell（1）One
Face is provided with information transfer mouth（6）, information transfer mouth（6）Two sides be respectively rotating shaft（2）Two ends.
6. torque sensor according to claim 5, it is characterised in that：The axostylus axostyle（21）It is provided with size and foil gauge
（8）Identical groove（7）, foil gauge（8）Groove is bonded in by metal glue（7）It is interior.
7. torque sensor according to claim 6, it is characterised in that：The axostylus axostyle（21）It is upper to surround axostylus axostyle（21）Center
It is provided with four identical fan grooves（9）, one of fan groove（9）Inside it is provided with foil gauge（8）.
8. the torque sensor according to claim 6 or 7, it is characterised in that：The foil gauge（8）It is connected to by lead
First wire casing（221）, the second wire casing（222）Information transfer mouth is connected to by lead（6）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621093444.5U CN206146575U (en) | 2016-09-29 | 2016-09-29 | Torque sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621093444.5U CN206146575U (en) | 2016-09-29 | 2016-09-29 | Torque sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206146575U true CN206146575U (en) | 2017-05-03 |
Family
ID=58620231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621093444.5U Active CN206146575U (en) | 2016-09-29 | 2016-09-29 | Torque sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206146575U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111426415A (en) * | 2020-04-10 | 2020-07-17 | 蚌埠高灵传感系统工程有限公司 | Sleeve pipe torque sensor monitoring data processing device |
-
2016
- 2016-09-29 CN CN201621093444.5U patent/CN206146575U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111426415A (en) * | 2020-04-10 | 2020-07-17 | 蚌埠高灵传感系统工程有限公司 | Sleeve pipe torque sensor monitoring data processing device |
| CN111426415B (en) * | 2020-04-10 | 2020-11-24 | 蚌埠高灵传感系统工程有限公司 | Sleeve pipe torque sensor monitoring data processing device |
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