CN205311693U - Electric power steering system's noncontacting proximity sensor - Google Patents
Electric power steering system's noncontacting proximity sensor Download PDFInfo
- Publication number
- CN205311693U CN205311693U CN201521016455.9U CN201521016455U CN205311693U CN 205311693 U CN205311693 U CN 205311693U CN 201521016455 U CN201521016455 U CN 201521016455U CN 205311693 U CN205311693 U CN 205311693U
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- CN
- China
- Prior art keywords
- sensor
- axle assembly
- steering system
- electric boosting
- output shaft
- 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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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The utility model relates to an electric power steering system's noncontacting proximity sensor, a steering system include input shaft assembly and output shaft assembly, noncontacting proximity sensor include sensor rotor of being connected with the input shaft assembly and the sensor stator of being connected with the output shaft assembly, sensor rotor and sensor stator between leave clearance and relative the setting. Compared with the prior art, the utility model has the advantages of long service life, stable, the strong and anti electromagnetic interference of the frequency response signal ability dynamic height of signal voltage.
Description
Technical field
The utility model relates to the sensor of a kind of electric boosting steering system, especially relates to the non-contacting sensor of a kind of electric boosting steering system.
Background technology
At present, many employing contact torque transducers in electromobile power-assisted steering Controlling System (C-EPS). Being generally contact variable resistance potentiometer, be commonly called as slip resistance, it is made with carbon plated film resistance or ceramic membrane resistance. Its variable resistance principle, when torsion bar is by deformation under torsion, input shaft, output shaft produce angular travel relatively, and variable resistance slide plate is by contact arm contact pawl, and by interior external resistance superposition, stroke or angle are bigger, and the resistance value of input is bigger, and output voltage is higher.
In C-EPS, though the plated film resistance in this kind of sensor has certain antiwear characteristic, but the metal slide contact arm on its variable resistance slide plate is Elastic Contact pawl, because of continuous sliding friction, electric current burn, elasticity touches pawl pressure and diminishes, ducting capacity is caused to be deteriorated, export voltage signal time big time little, time sometimes without, cause output signal confusion, misalignment, inefficacy and report to the police. In addition, this kind of sensor generally directly assembling use, assembling needs locate by the keyway on input shaft and output shaft and spline, it is higher that this kind installs the requirement of relative angle when input shaft and output shaft are assembled by mode, and the medullary ray of two ends keyway needs unanimously to ensure that sensor is in mid-way after mounting.
Practical novel content
The purpose of this utility model is exactly the non-contacting sensor providing a kind of long service life, signal voltage are stable, frequency response signal strong and anti-electromagnetic wave interference performance is high electric boosting steering system in order to overcome defect that above-mentioned prior art exists.
The purpose of this utility model can be achieved through the following technical solutions:
The non-contacting sensor of a kind of electric boosting steering system, described steering comprises input axle assembly and exports axle assembly, it is characterized in that, described non-contacting sensor comprises the rotor sensor being connected with input axle assembly and the sensor stator being connected with output axle assembly, leaves gap and be oppositely arranged between described rotor sensor and sensor stator.
Described output axle assembly comprises output shaft, worm gear and torsion bar, and described sensor stator is arranged on output shaft.
Described sensor stator and output shaft are equipped with spacing card groove, are entered by the cylinder pin card of correspondence, it is achieved both connect.
Described sensor stator is connected by the mating surface of solidified glue and output shaft.
Described rotor sensor is connected by the mating surface of solidified glue with input axle assembly.
Described input axle assembly and output axle assembly are respectively equipped with the groove for riveting pressure.
Described rotor sensor riveting is pressed on input axle assembly.
Described sensor stator riveting is pressed on and exports on axle assembly.
Compared with prior art, the utility model is non-contact angle sensor, utilizes Hall effect principle to make, when working current is by Huo Er sheet, in normal direction by magnetic line of force, being then perpendicular to sense of current generation Hall voltage, its size direct ratio is in electric current and magneticstrength; Relative to contact-sensing device, the utility model has without friction member, it may also be useful to the life-span is long, signal voltage stable (not by the impact of rotating speed height), frequency response signal and anti-electromagnetic wave interference performance advantages of higher.
Accompanying drawing explanation
Fig. 1 is the utility model sectional view;
Fig. 2 is the utility model steering schematic diagram;
Fig. 3 is the utility model sensor pressure riveting schematic diagram.
In figure, 1 is input shaft, and 2 is torsion bar, and 3 is rotor sensor, and 4 is sensor stator, and 5 is needle bearing, and 6 is output shaft, and 7 is cylinder pin, and 8 is worm gear, and 9 for exporting axle assembly, and 10 is input axle assembly, and 11 is the groove for riveting pressure.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Embodiment
The non-contacting sensor of a kind of electric boosting steering system shown in Fig. 1, steering comprises the output axle assembly 9 shown in Fig. 2 and input axle assembly 10, wherein exports axle assembly and comprises output shaft 6, worm gear 8 and torsion bar 2; Non-contacting sensor rotor sensor 3 and sensor stator 4. Concrete installation mode is as follows: worm gear 8 and output shaft 6 press-fit after well, press-fit needle bearing 5, torsion bar 2 and cylinder pin 7, then are press-fited by input shaft 1. Sensor stator 4 is installed on output shaft 6 prior to rotor sensor 3, and sensor stator and output shaft are equipped with spacing card groove, by cylinder pin 7 block into, work to limit its radial rotating and apply certain preliminary tension preventing from axially deviating from.
In Fig. 2, output axle assembly 9 is installed sensor location place with input axle assembly 10 and is respectively equipped with the pressure riveting demand of 2 place's grooves for sensor.
In Fig. 3, input axle assembly 9 and rotor sensor 3 riveting press-fit join before need to smear glue special on input axle assembly 9 mating surface, rotor sensor 3 is installed again and carries out the calibration of sensor, after calibration, keep relative position to be connected by the mating surface of solidified glue with input axle assembly 9 by rotor sensor 3. Finally by being used for groove 11 riveting of riveting pressure, rotor sensor 3 being pressed on input axle assembly 9, sensor stator 4 exports axle assembly 10 by being pressed on for groove 11 riveting of riveting pressure.
Claims (8)
1. the non-contacting sensor of an electric boosting steering system, described steering comprises input axle assembly and exports axle assembly, it is characterized in that, described non-contacting sensor comprises the rotor sensor being connected with input axle assembly and the sensor stator being connected with output axle assembly, leaves gap and be oppositely arranged between described rotor sensor and sensor stator.
2. the non-contacting sensor of a kind of electric boosting steering system according to claim 1, it is characterised in that, described output axle assembly comprises output shaft, worm gear and torsion bar, and described sensor stator is arranged on output shaft.
3. the non-contacting sensor of a kind of electric boosting steering system according to claim 2, it is characterised in that, described sensor stator and output shaft are equipped with spacing card groove, are entered by the cylinder pin card of correspondence, it is achieved both connect.
4. the non-contacting sensor of a kind of electric boosting steering system according to claim 2, it is characterised in that, described sensor stator is connected by the mating surface of solidified glue and output shaft.
5. the non-contacting sensor of a kind of electric boosting steering system according to claim 1, it is characterised in that, described rotor sensor is connected by the mating surface of solidified glue with input axle assembly.
6. the non-contacting sensor of a kind of electric boosting steering system according to claim 1, it is characterised in that, described input axle assembly and output axle assembly are respectively equipped with the groove for riveting pressure.
7. the non-contacting sensor of a kind of electric boosting steering system according to claim 6, it is characterised in that, described rotor sensor riveting is pressed on input axle assembly.
8. the non-contacting sensor of a kind of electric boosting steering system according to claim 6, it is characterised in that, described sensor stator riveting is pressed on and exports on axle assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521016455.9U CN205311693U (en) | 2015-12-09 | 2015-12-09 | Electric power steering system's noncontacting proximity sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521016455.9U CN205311693U (en) | 2015-12-09 | 2015-12-09 | Electric power steering system's noncontacting proximity sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205311693U true CN205311693U (en) | 2016-06-15 |
Family
ID=56315165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521016455.9U Expired - Fee Related CN205311693U (en) | 2015-12-09 | 2015-12-09 | Electric power steering system's noncontacting proximity sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205311693U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021005078A1 (en) * | 2019-07-10 | 2021-01-14 | Thyssenkrupp Presta Ag | Steering shaft for an electromechanical motor vehicle steering system with a bearing arrangement having a prestressing element |
-
2015
- 2015-12-09 CN CN201521016455.9U patent/CN205311693U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021005078A1 (en) * | 2019-07-10 | 2021-01-14 | Thyssenkrupp Presta Ag | Steering shaft for an electromechanical motor vehicle steering system with a bearing arrangement having a prestressing element |
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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: 20160615 Termination date: 20161209 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |