CN203605903U - Device for measuring steering angle and torque - Google Patents
Device for measuring steering angle and torque Download PDFInfo
- Publication number
- CN203605903U CN203605903U CN201320605750.2U CN201320605750U CN203605903U CN 203605903 U CN203605903 U CN 203605903U CN 201320605750 U CN201320605750 U CN 201320605750U CN 203605903 U CN203605903 U CN 203605903U
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- follower gear
- mesochite
- torsion
- moment
- steering angle
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Abstract
The utility model discloses a device for measuring a steering angle and a torque. The device comprises a middle housing. The device is characterized in that one side of the middle housing is provided with an input mechanism, the input mechanism is fixedly connected with the middle housing, the other side of the housing is provided with an output mechanism, the output mechanism is fixedly connected with the middle housing, the output mechanism comprises a steering angle measuring mechanism and a torque measuring mechanism, and the steering angle measuring mechanism and the torque measuring mechanism are fixedly connected with the middle housing. The input mechanism is connected with an input shaft, the output mechanism is connected with an output shaft, the steering angle of a vehicle is measured through the steering angle measuring mechanism, and the torque while measuring the steering is measured through the torque measuring mechanism. Compared with the prior art, the device is advantageous in that the device can be applied to an electric power steering system and detects the rotary angle of a steering wheel and the input torque, and the device has the advantages of not only simple structure and easy installation but also low cost and high reliability and precision.
Description
Technical field
The utility model relates to a kind of automobile production pick-up unit, and in particular, the utility model relates to a kind of measurement steering angle of automobile steering system and the device of moment of torsion.
Background technology
At present, electric boosting steering system is controlled assist motor output power-assisted according to the size of the signal of steering-wheel torque sensor output and vehicle speed signal.Contactless steering-wheel torque sensor is the advantage such as precision is high, reliability is high, long service life owing to having, and has become the trend of electric power-assisted steering torque development.
Non-contact torque sensor can be divided into again electromagnetic type, inductance type, photo-electric etc.Photo-electric steering-wheel torque Fundamentals of Sensors are simple, but it manufactures difficulty.Electromagnetic type steering-wheel torque sensor construction is simpler, highly sensitive, but needs special signal to occur and treatment circuit, and signal is easily disturbed.
Electric boosting steering system only has the angular transducer of increasing can realize the functions such as " initiatively just returning ", " aid parking ", is later unmanned laying the foundation.
The shortcoming difficult, cost is high, reliability is not high is produced in sensor construction complexity, the manufacture of existing angle and moment of torsion one.
Summary of the invention
The purpose of this utility model is to solve existing above-mentioned problem, and a kind of simple in structure, easily manufactured, measurement steering angle that cost is low and the device of moment of torsion are provided.
For realizing above object, technical scheme of the present invention is a kind of device of measuring steering angle and moment of torsion, comprise mesochite, it is characterized in that, described mesochite one side is provided with input mechanism, and described input mechanism is fixedly connected with mesochite, described mesochite opposite side is provided with output mechanism, described output mechanism is fixedly connected with mesochite, and described output mechanism comprises steering angle measuring mechanism and torque measuring mechanism, and described steering angle measuring mechanism is all fixedly connected with mesochite with torque measuring mechanism.Input mechanism is connected with input shaft, and output mechanism is connected with output shaft, by the steering angle of steering angle measuring mechanism measuring vehicle, and the moment of torsion while turning to by torque measuring mechanism measurement, simple in structure, easy for installation, cost is low, and precision is high, and reliability is high.
As preferably, described input mechanism comprises input lining, and described input lining is provided with magnet ring, and described magnet ring is fixedly connected with input lining.Input lining is connected with input shaft, measures moment of torsion by the interaction of magnet ring and miscellaneous part.
As preferably, described torque-measuring apparatus comprises output lining, and described output lining is provided with collection magnetosphere retainer, and described output lining is fixedly connected with collection magnetosphere retainer, described output lining center line with input lining center line and overlap.Output lining is connected with output shaft, and output lining is fixed on collection magnetosphere retainer, and the center line of output lining overlaps with the center line of input lining, can guarantee that the precision of measurement data reaches certain requirement.
As preferably, described magnet ring outer cover is provided with two interlaced collection magnetospheres, and described collection magnetosphere is fixedly connected with collection magnetosphere retainer, and two described collection magnetospheres outsides are equipped with detects circle.Two interlaced collection magnetospheres on collection magnetosphere retainer are enclosed within magnet ring outside, two collection magnetosphere outsides also have the circle of detection, mutual motion by magnet ring with collection magnetosphere, then enclose the magnetic field size that detects that magnet ring and collection magnetosphere move mutually by detection, thus measure the size of moment of torsion.
As preferably, described detection circle outside is provided with moment of torsion pcb board, between described detection circle, is provided with moment of torsion chip, and described moment of torsion chip is fixedly connected with moment of torsion pcb board.Moment of torsion chip receives the signal that detects circle, thereby draws torque value by signal-data processing.
As preferably, described steering angle measuring mechanism comprises main drive gear, described main drive gear is fixedly connected with collection magnetosphere retainer, described main drive gear is connected with the first follower gear, the first described follower gear engages with main drive gear, the first described follower gear is connected with the second follower gear, and the second described follower gear engages with the first follower gear.Main drive gear and the first follower gear are intermeshing, the first follower gear and the second follower gear are intermeshing, by measuring the rotational angle of the first follower gear and the second follower gear, again according to the first gear and the second gear mutual relationship, determine the rotational angle of driving wheel, thereby determine the anglec of rotation of vehicle.
As preferably, the first described follower gear and the second follower gear one side are flexibly connected with mesochite, and the first described follower gear and the opposite side of the second follower gear are provided with angle pcb board, and described angle PCB version is flexibly connected with mesochite.The first follower gear is connected by mesochite with the second follower gear one side, the first follower gear is connected by angle pcb board with the second follower gear opposite side, under the acting in conjunction of mesochite and angle pcb board, the stable rotation of the first follower gear and the second follower gear, has increased the precision of measuring.
As preferably, on the first described follower gear and the second follower gear, be equipped with detection magnetic sheet, described detection magnetic sheet is all coaxial with the first follower gear and the second follower gear, described detection magnetic sheet one end is all fixedly connected with the second follower gear with the first follower gear, and the described detection magnetic sheet other end is fixedly connected with angle pcb board.Detect the rotational angle that magnetic sheet detects the first follower gear and the second follower gear, can calculate the rotational angle of main drive gear according to the rotational angle of the first follower gear and the second follower gear, thereby draw the steering angle of vehicle.
As preferably, a side of described mesochite is provided with upper cover, and described upper cover is fixedly connected with mesochite, and the opposite side of described mesochite is provided with bottom, and described bottom is fixedly connected with mesochite.The bottom of middle cover both sides and upper cover all user are protected inner member, prevent that inner member from damaging, and guarantees the precision of measuring.
As preferably, described mesochite is provided with output interface, and described output interface is fixedly connected with mesochite.Output interface is connected with MCU chip and power supply, and power supply is used for providing electric energy, and MCU chip is for the treatment of the data of calculation element internal measurement.
The utlity model has following beneficial effect: its beneficial effect is to be applied to electric boosting steering system compared with prior art, detect the steering wheel anglec of rotation and input torque, not only simple in structure, easy for installation, and cost is lower, reliability, precision are all higher.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is a kind of right view of Fig. 1;
Fig. 3 is a kind of structural representation of steering angle measuring mechanism;
Fig. 4 is that the utility model uses a kind of structural representation of installing;
Fig. 5 is a kind of structural representation of torque measuring mechanism;
Fig. 6 is a kind of structural representation of input mechanism.
1, input lining; 2, magnet ring; 3, collection magnetosphere; 4, detect circle; 5, output lining; 6, collection magnetosphere retainer; 7, moment of torsion chip; 8, mesochite; 9, upper cover; 10, bottom; 11, main drive gear; 12, the first follower gear; 13, the second follower gear; 14, detect magnetic sheet; 15, angle pcb board; 16, output shaft; 17, torsion bar; 18, pin; 19, input shaft; 20, moment of torsion pcb board; 21, output interface.
Embodiment
Below in conjunction with specific embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is further described:
Embodiment: the device (seeing accompanying drawing 1-6) of measuring steering angle and moment of torsion, comprise mesochite 8, mesochite 8 right sides are provided with input mechanism, input mechanism is connected with mesochite 8 bolts, mesochite 8 left sides are provided with output mechanism, output mechanism is connected with mesochite 8 bolts, output mechanism comprises steering angle measuring mechanism and torque measuring mechanism, steering angle measuring mechanism is all connected with mesochite 8 bolts with torque measuring mechanism, input mechanism comprises input lining 1, input lining 1 is provided with magnet ring 2, magnet ring 2 is fixedly connected with input lining 1, torque-measuring apparatus comprises output lining 5, output lining 5 is provided with collection magnetosphere retainer 6, output lining 5 is fixedly connected with collection magnetosphere retainer 6, output lining 5 center lines overlap with input lining 1 center line, magnet ring 2 outer cover are provided with two interlaced collection magnetospheres 3, collection magnetosphere 3 is fixedly connected with collection magnetosphere retainer 6, two collection magnetosphere 3 outsides are equipped with detects circle 4, detect circle 4 outsides and be provided with moment of torsion pcb board 20, detect between circle 4 and be provided with moment of torsion chip 7, moment of torsion chip 7 is fixedly connected with moment of torsion pcb board 20, steering angle measuring mechanism comprises main drive gear 11, main drive gear 11 is fixedly connected with collection magnetosphere retainer 6, main drive gear 11 is connected with the first follower gear 12, the first follower gear 12 engages with main drive gear 11, the first follower gear 12 is connected with the second follower gear 13, the second follower gear 13 engages with the first follower gear 12, the first follower gear 12 and the second follower gear 13 1 sides are flexibly connected with mesochite, the opposite side of the first follower gear 12 and the second follower gear 13 is provided with angle pcb board 15, angle pcb board 15 is flexibly connected with mesochite 8, on the first follower gear 12 and the second follower gear 13, be equipped with and detect magnetic sheet 14, detect magnetic sheet 14 all coaxial with the first follower gear 12 and the second follower gear 13, detecting magnetic sheet 14 one end is all fixedly connected with the second follower gear 13 with the first follower gear 12, detecting magnetic sheet 14 other ends is fixedly connected with angle pcb board 15, one side of mesochite 8 is provided with upper cover 9, upper cover 9 is connected with mesochite 8 bolts, the opposite side of mesochite 8 is provided with bottom 10, bottom 10 is connected with mesochite 8 bolts, mesochite 8 is provided with output interface 21, output interface 21 is connected with mesochite 8 bolts.
The steering angle computing formula the present invention relates to is: M/M1-M/M2=1/N
Wherein M, M1, M2 are respectively the number of teeth of main drive gear, the first follower gear, the second follower gear three gears, and N is the measurable number of total coils of angular transducer.
Ring-type interlock equally distributed N, S magnetic pole magnet ring 2 by Shooting Technique be fixed on input lining 1 on, two collection magnetospheres 3 staggered with output lining 5 as inserts together injection moulding be fixed on collection magnetosphere retainer 6, mesochite 8 is between collection magnetosphere retainer 6 and main drive gear 11, main drive gear 11 is fixed on collection magnetosphere retainer 6, concentric with output lining 5, main drive gear 11 engages with the first follower gear 12, the first follower gear 12 engages with the second follower gear 13, in the first follower gear 12 and the second follower gear 13, be respectively embedded with the detection magnetic sheet 14 of one piece of concentric rotation, detect on magnetic sheet 14 symmetrical a pair of N S magnetic pole, the first follower gear 12 and the second follower gear 13 are all between mesochite 8 and pcb board 15, all around its gear centre line engagement rotation, two detect magnetic sheet 14 is fixed on pcb board 15 by labeling technique, on pcb board 15, also there is the MCU chip and the power management module that calculate absolute angle value according to above-mentioned formula simultaneously, the effect of power management module is carry out filtering and prevent power supply short circuit to the supply voltage of this device power supply, wrong etc.
The top of two collection magnetospheres 3 has respectively one to detect circle 4, and there is certain interval between collection magnetosphere and detection circle, two are detected circle 4 and are separately fixed on upper cover 9 and drain pan 10, moment of torsion chip 7 is between two detection circles, moment of torsion chip 7 is fixed on moment of torsion pcb board 20 by labeling technique, pcb board 15 is between drain pan 10 and main drive gear 11, the first follower gear 12, the second follower gear 13 3 gears, and upper cover 9 and drain pan 10 are fixed together by screw and mesochite 8.
When the stationary vehicle of lift-launch apparatus of the present invention or straight-line travelling, on input shaft 19, not applying moment of torsion, there is not elastic deformation in torsion bar 17.Magnet ring 2 does not relatively rotate with collection magnetosphere 3, and the magnetic field intensity that two collection magnetospheres 3 are collected is zero, and two are detected circle 4 and do not conduct magnetic field so, and moment of torsion chip 7 can output two-way equal and opposite in directions, the electric signal that numerical value is constant.
Carry the vehicle left steering of apparatus of the present invention, be that input shaft 19 is to anticlockwise, torsion bar 17 produces the elastic deformation of left-hand rotation, magnet ring 2 and collection magnetosphere 3 occur relative to rotating left, two collection magnetospheres 3 can be collected equal and opposite in direction, magnetic field (the magnetic field intensity on the size in magnetic field and magnet ring that magnetic pole is contrary, torsion bar rigidity, torsion bar deflections etc. are relevant), circle 4 conduction are detected to moment of torsion chip 7 in two, this magnetic field, moment of torsion chip 7 is according to the size and Orientation output two path signal of magnetic field intensity, the type and size of this two path signal can meet to 7 programmings of moment of torsion chip user's demand.
Carry the vehicle right turn of apparatus of the present invention, be that input shaft 19 is to right rotation, torsion bar 17 produces the elastic deformation of turning right, magnet ring 2 and collection magnetosphere 3 occur relative to rotating to the right, two collection magnetospheres 3 can be collected equal and opposite in direction, magnetic field that magnetic pole is contrary, and the direction in magnetic field is contrary with the magnetic direction in case 2.Same through detecting circle 4 conduction to moment of torsion chip 7, moment of torsion chip 7 is exported two path signal, contrary with case 2 of its direction, its size also with magnet ring on magnetic field intensity, torsion bar rigidity, torsion bar deflection etc. relevant, also can meet request for utilization according to the programmable feature of moment of torsion chip 7.
Above-mentioned embodiment is used for the utility model of explaining; rather than the utility model is limited; in the protection domain of spirit of the present utility model and claim, any modification and change that the utility model is made, all fall into protection domain of the present utility model.
Claims (10)
1. measure the device of steering angle and moment of torsion for one kind, comprise mesochite, it is characterized in that, described mesochite one side is provided with input mechanism, described input mechanism is fixedly connected with mesochite, and described mesochite opposite side is provided with output mechanism, and described output mechanism is fixedly connected with mesochite, described output mechanism comprises steering angle measuring mechanism and torque measuring mechanism, and described steering angle measuring mechanism is all fixedly connected with mesochite with torque measuring mechanism.
2. the device of measurement steering angle according to claim 1 and moment of torsion, is characterized in that, described input mechanism comprises input lining, and described input lining is provided with magnet ring, and described magnet ring is fixedly connected with input lining.
3. the device of measurement steering angle according to claim 2 and moment of torsion, it is characterized in that, described torque-measuring apparatus comprises output lining, described output lining is provided with collection magnetosphere retainer, described output lining is fixedly connected with collection magnetosphere retainer, and described output lining center line overlaps with input lining center line.
4. the device of measurement steering angle according to claim 3 and moment of torsion, it is characterized in that, described magnet ring outer cover is provided with two interlaced collection magnetospheres, and described collection magnetosphere is fixedly connected with collection magnetosphere retainer, and two described collection magnetosphere outsides are equipped with detects circle.
5. the device of measurement steering angle according to claim 4 and moment of torsion, is characterized in that, described detection circle outside is provided with moment of torsion pcb board, between described detection circle, is provided with moment of torsion chip, and described moment of torsion chip is fixedly connected with moment of torsion pcb board.
6. the device of measurement steering angle according to claim 3 and moment of torsion, it is characterized in that, described steering angle measuring mechanism comprises main drive gear, described main drive gear is fixedly connected with collection magnetosphere retainer, described main drive gear is connected with the first follower gear, the first described follower gear engages with main drive gear, and the first described follower gear is connected with the second follower gear, and the second described follower gear engages with the first follower gear.
7. the device of measurement steering angle according to claim 6 and moment of torsion, it is characterized in that, the first described follower gear and the second follower gear one side are flexibly connected with mesochite, the first described follower gear and the opposite side of the second follower gear are provided with angle pcb board, and described angle PCB version is flexibly connected with mesochite.
8. according to the measurement steering angle described in claim 6 or 7 and the device of moment of torsion, it is characterized in that, on the first described follower gear and the second follower gear, be equipped with detection magnetic sheet, described detection magnetic sheet is all coaxial with the first follower gear and the second follower gear, described detection magnetic sheet one end is all fixedly connected with the second follower gear with the first follower gear, and the described detection magnetic sheet other end is fixedly connected with angle pcb board.
9. according to the measurement steering angle described in claim 1 to 7 any one and the device of moment of torsion, it is characterized in that, a side of described mesochite is provided with upper cover, and described upper cover is fixedly connected with mesochite, the opposite side of described mesochite is provided with bottom, and described bottom is fixedly connected with mesochite.
10. according to the measurement steering angle described in claim 1 to 7 any one and the device of moment of torsion, it is characterized in that, described mesochite is provided with output interface, and described output interface is fixedly connected with mesochite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320605750.2U CN203605903U (en) | 2013-09-29 | 2013-09-29 | Device for measuring steering angle and torque |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320605750.2U CN203605903U (en) | 2013-09-29 | 2013-09-29 | Device for measuring steering angle and torque |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203605903U true CN203605903U (en) | 2014-05-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320605750.2U Expired - Fee Related CN203605903U (en) | 2013-09-29 | 2013-09-29 | Device for measuring steering angle and torque |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203605903U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486965A (en) * | 2013-09-29 | 2014-01-01 | 杭州飞越汽车零部件有限公司 | Device for measuring steering angle and torque |
| CN106979836A (en) * | 2016-01-19 | 2017-07-25 | 旭春股份有限公司 | Magnetic torque sensing device for steering |
-
2013
- 2013-09-29 CN CN201320605750.2U patent/CN203605903U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486965A (en) * | 2013-09-29 | 2014-01-01 | 杭州飞越汽车零部件有限公司 | Device for measuring steering angle and torque |
| CN106979836A (en) * | 2016-01-19 | 2017-07-25 | 旭春股份有限公司 | Magnetic torque sensing device for steering |
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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: 20140521 Termination date: 20160929 |