CN203528739U - Center shaft system with sensor - Google Patents
Center shaft system with sensor Download PDFInfo
- Publication number
- CN203528739U CN203528739U CN201320490707.6U CN201320490707U CN203528739U CN 203528739 U CN203528739 U CN 203528739U CN 201320490707 U CN201320490707 U CN 201320490707U CN 203528739 U CN203528739 U CN 203528739U
- Authority
- CN
- China
- Prior art keywords
- axis
- bearings
- pair
- hall chip
- ring
- 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
Images
Landscapes
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
The utility model discloses a center shaft system with a sensor. A center shaft is provided with grooves, clamping rings are clamped in the grooves, the clamping rings replace shaft shoulders to limit inner rings of bearings axially, and as the shaft shoulders are omitted, the periphery grinding operation is not needed, and the center shaft can be machined easily. In the center shaft system with the sensor provided with a magnetic ring, the portions, on the two sides of a locating groove, on the center shaft and the portions where the bearings are installed are integrally formed and are the same in shaft diameter, and therefore the magnetic ring can be directly injected in the locating groove of the center shaft, plastic sleeves mentioned in the background technology are not required, and the intensity of signals output by a Hall chip can be enhanced as needed. In the center shaft system with the sensor provided with the Hall chip and a code disk, the height of the tooth end face, capable of being sensed by the Hall chip, on the code disk downwards increases by 0.8-1.3mm, and therefore the intensity of the signals output by the Hall chip is enhanced.
Description
Technical field
The utility model relates to the centre shaft of belt sensor, can be applied on Electrical Bicycle and Moped Scooter.
Background technology
The centre shaft of belt sensor, is applied on Electrical Bicycle and Moped Scooter, can detect rotative speed and the hand of rotation of axis by sensor.
Sensor can adopt Hall chip to match with magnet ring, shown in Figure 1, axis 1 ' all has collar 13 ' at two ends, shaft shoulder portion 11 ' and 12 ', the inner ring difference fixed cover of a pair of deep groove ball bearing 8 ' is on the collar 13 ' at axis 1 ' two ends, and inconsistent with shaft shoulder portion 11 ' and 12 ' respectively, axis 1 ' fixed cover on the position being positioned between shaft shoulder portion 11 ' and 12 ' is provided with plastic sleeve 5 ', magnet ring 4 ' is injection-moulded on plastic sleeve 5 ', the upper outstanding shoulder 51 ' of sleeve 5 ' carries out axial location to magnet ring 4 ', the housing 2 ' being fixed between the outer ring of pair of bearings 8 ' has Hall chip 3 ' in inside, left side, Hall chip 3 ' obtains rotative speed and the hand of rotation signal of axis 1 ' by reaction magnetic ring 4 '.In the existing centre shaft structure shown in Fig. 1, the processing more complicated of axis 1 ', by Vehicle Processing, going out after shaft blank, also need to grind and process collar 13 ' by outer rim, shaft shoulder portion 11 ' and 12 ', in addition, existence due to shaft shoulder portion 11 ' and 12 ', magnet ring 4 ' cannot be directly injection-moulded on axis 1 ', plastic sleeve 5 ' must be set and just can inject magnet ring 4 ', moreover, so also retrained the radial dimension of magnet ring 4 ', the signal strength of Hall chip 3 ' output is to be relevant to the radial dimension of the magnet ring 4 ' that can sense, so likely cause the signal strength of Hall chip 3 ' output strong not.
Sensor can also adopt Hall chip to match with code-disc, shown in Figure 2, the inner ring difference fixed cover of a pair of deep groove ball bearing 8 ' is on the collar 13 ' at axis 1 ' two ends, and inconsistent with shaft shoulder portion 11 ' and 12 ' respectively, code-disc 4 ' fixed cover is in shaft shoulder portion 11 ', code-disc 4 ' has along the spaced a plurality of teeth 41 ' of circumferential direction, the housing 2 ' being fixed between the outer ring of pair of bearings 8 ' has Hall chip 3 ' in inside, right side, Hall chip 3 ' obtains rotative speed and the hand of rotation signal of axis 1 ' by the end face of the tooth 41 ' of induction code-disc 4 '.In the existing centre shaft structure shown in Fig. 2, equally, need to process collar 13 ', shaft shoulder portion 11 ' and 12 ', cause the processing of axis 1 ' very complicated, and, due to the existence of shaft shoulder portion 11 ', cause increment face height-limited of code-disc 4 ', the signal strength of Hall chip 3 ' output is to be relevant to the height of the increment face of the code-disc 4 ' that can sense, a little less than causing like this signal strength that Hall chip 3 ' exports.
Summary of the invention
The problem that the utility model solves is to simplify the processing of axis, simultaneously in adopting the sensor centre shaft of magnet ring, without using plastic sleeve, and can strengthen as required the signal strength that Hall chip is exported, in adopting the sensor centre shaft of code-disc, strengthen the signal strength of Hall chip output.
For addressing the above problem, the utility model provides the centre shaft of two kinds of belt sensors,
A kind of centre shaft of belt sensor wherein, comprise the axis that can rotate, inner ring is the pair of bearings of fixed cover on the both ends of described axis respectively, be fixed on the housing between the outer ring of described pair of bearings, described sensor comprises the magnet ring being fixed on described axis, be fixed in described housing and can sense that thereby described magnet ring obtains the rotative speed of described axis and the Hall chip of hand of rotation signal, described axis all offers the groove extending along circumferential direction being positioned on the inside line of described pair of bearings, described in each, in groove, all snapped in snap ring, described in each, snap ring is all conflicted on the inner ring of the described bearing of correspondence, on described axis, also offer along circumferential direction and extend the positioning groove connecting, described magnet ring injection moulding enters in described positioning groove, the position that is positioned at described positioning groove both sides on described axis is one-body molded with the position that described pair of bearings is installed, and same diameter of axle setting.
The centre shaft of another belt sensor, comprise the axis that can rotate, inner ring is the pair of bearings of fixed cover on the both ends of described axis respectively, be fixed on the housing between the outer ring of described pair of bearings, described sensor comprises and is fixed on described axis and has along the code-disc of the spaced a plurality of teeth of circumferential direction, thereby be fixed on, in described housing, can sense that the increment face of described code-disc obtains the rotative speed of described axis and the Hall chip of hand of rotation signal, described axis all offers the groove extending along circumferential direction being positioned on the inside line of described pair of bearings, described in each, in groove, all snapped in snap ring, described in each, snap ring is all conflicted on the inner ring of the described bearing of correspondence, the position that described code-disc is installed on described axis is one-body molded with the position that described pair of bearings is installed, and same diameter of axle setting, the height of the increment face that can be sensed by described Hall chip on described code-disc increases 0.8-1.3mm downwards.
During concrete enforcement, described groove is along the circumferential perforation setting of described axis, thus convenient processing.
During concrete enforcement, described bearing adopts deep groove ball bearing.
Compared with prior art, the utlity model has following advantage: in the centre shaft of above-mentioned two kinds of belt sensors, all on axis, offer groove, in groove, snap in snap ring, snap ring replaces the shaft shoulder portion in background technology, and bearing inner ring is carried out to axial limiting, owing to cancelling the shaft shoulder portion that uses,, without adopting outer rim mill process operation, make the processing of axis simple.In the centre shaft of sensor that adopts Hall chip and magnet ring, the position that is positioned at positioning groove both sides on axis is one-body molded with the position that pair of bearings is installed, and same diameter of axle setting, like this when injection moulding magnet ring, can well magnetic particle be remained in injection machine, thereby guarantee that the direct injection moulding of magnet ring enters in the positioning groove of axis, without using the plastic sleeve of mentioning in background technology, in addition, when the corresponding site in bearings mounted position of the present utility model and background technology adopts same size, because the direct injection moulding of magnet ring of the present utility model enters in the positioning groove of axis, the radial dimension of magnet ring can injection moulding obtain larger, thereby can improve the signal strength of Hall chip output.In the centre shaft of sensor that adopts Hall chip and code-disc, the position that code-disc is installed on axis is one-body molded with the position that pair of bearings is installed, and same diameter of axle setting, with respect to code-disc being arranged in shaft shoulder portion in background technology, the radial dimension of the code-disc of the utility model setting can increase, specifically, the height of the increment face that can be sensed by Hall chip on code-disc increases 0.8-1.3mm downwards, thereby strengthens the signal strength of Hall chip output.
Accompanying drawing explanation
Fig. 1 is the longitudinal sectional view of the centre shaft of belt sensor in prior art, and wherein sensor adopts Hall chip and magnet ring to match;
Fig. 2 is the longitudinal sectional view of the centre shaft of belt sensor in prior art, and wherein sensor adopts Hall chip and code-disc to match;
Fig. 3 is the longitudinal sectional view of the centre shaft of belt sensor of the present utility model, and wherein sensor adopts Hall chip and magnet ring to match;
Fig. 4 is the longitudinal sectional view of the centre shaft of belt sensor of the present utility model, and wherein sensor adopts Hall chip and code-disc to match.
The specific embodiment
Shown in Figure 3, a kind of centre shaft of belt sensor, comprise axis 1, pair of bearings 8, pair of bearings end cap 6 and 7, a pair of snap ring 5, housing 2, pair of bolts 9, sensor comprises Hall chip 3, magnet ring 4, sensor wire harness 10, axis 1 has collar 13 at two ends, between the collar 13 at two ends, also there is collar 15, axis 1 all offers the groove 11 extending along circumferential direction on the inside line of collar 13, for convenient processing, each groove 11 all connects setting in circumferential direction, is a circle setting.Pair of bearings 8 all adopts deep groove ball bearing, the inner ring difference fixed cover of a pair of deep groove ball bearing 8 is on the collar 13 at axis 1 two ends, in each groove 11 of axis 1, all snapped in snap ring 5, each snap ring 5 is all conflicted in the inner side of the inner ring of corresponding bearing 8, realizes the axial limiting to bearing 8 inner rings.The one machine-shaping on centerless grinder of collar 13 on axis 1, collar 15 goes out, and guarantee same diameter of axle setting, on axis 1, cancel the axle shoulder structure of mentioning in background technology, without adopting the processing of outer rim mill, made the processing of axis simple like this.On the collar 15 of axis 1, offer along circumferential direction and extend the positioning groove 12 connecting, same diameter of axle setting due to collar 13, collar 15, can well magnetic particle be remained in injection machine, thereby guarantee that the direct injection moulding of magnet ring 4 enters in positioning groove 12, without using the plastic sleeve of mentioning in background technology.Between the outer ring of pair of bearings 8, be fixed with housing 2, in housing 2, in left-hand portion, be fixed with Hall chip 3, Hall chip 3 is positioned at the top of magnet ring 4, Hall chip 3 senses magnet ring 4 by contactless mode, thereby can obtain rotative speed and the hand of rotation signal of axis 1, and output to electronic system by sensor wire harness 10, here adopt the structure of sensor of Hall chip 3 and magnet ring 4 and the prior art that measuring principle belongs to dawn known to a person skilled in the art, here do not repeat.When the collar 13 ' of mentioning in collar 13 of the present utility model and background technology adopts same size, because the direct injection moulding of magnet ring 4 of the present utility model enters in the positioning groove 12 of collar 15, the radial dimension of magnet ring 4 can injection moulding obtain larger, thereby can improve the signal strength of Hall chip 3 outputs.
When the centre shaft of the belt sensor shown in assembly drowing 3, first obtain axis 1, the good collar 13 of this axis 1 one machine-shaping on centerless grinder, collar 15, and offered groove 11, positioning groove 12, while injection formed magnet ring 4 in positioning groove 12, then snap ring 5 is snapped in groove 11, then by pair of bearings 8 on interference fit fixed cover, and make to be clipped between the outer ring of pair of bearings 8 with the housing 2 of Hall chip 3, after the roller bearing end cap on the right 6 being fixed on to Electrical Bicycle or electric boosted vehicle carriage sleeve pipe, then make roller bearing end cap 6 by the outer ring of interference fit fixed cover bearing 8 on the right and on housing 2, and guarantee that the circle projection 21 on housing 2 snaps in a circle groove 61 of roller bearing end cap 6, realize like this stable position of housing 2 between pair of bearings 8 outer rings, the outside of the outer ring of the bearing 8 on the right of while roller bearing end cap 6 is resisted against, realize the axial location of outside race, next put the roller bearing end cap 7 on the left side, this roller bearing end cap 7 passes through interference fit fixed cover in housing 2, but with the outer ring of the bearing 8 on the left side be free-running fit, certain floating can be carried out in the outer ring of left side bearing 8 like this.In vehicle frame sleeve pipe, install after centre shaft, finally by pair of bolts 9, pedal crankshaft is installed on axis 1.
The centre shaft of the belt sensor shown in Fig. 4 is similar to Fig. 3, and unique difference is, the sensor shown in Fig. 4 adopts Hall chip to coordinate with code-disc.In Fig. 4, the centre shaft of belt sensor, comprise equally axis 1, pair of bearings 8, pair of bearings end cap 6 and 7, a pair of snap ring 5, housing 2, pair of bolts 9, on axis 1, offer equally groove 11, snap ring 5 snaps in groove 11, and the inner ring of the bearing 8 to inner ring fixed cover on the collar 13 of axis 1 carries out axial location, equally, on axis 1, cancel the axle shoulder structure of mentioning in background technology, without adopting the processing of outer rim mill, made the processing of axis simple.Housing 2, pair of bearings end cap 6 and 7 the connection mode that structure and pair of bolts 9 are set be same Fig. 3 all, therefore be not repeated in this description at this.In Fig. 4, sensor comprises Hall chip 3, code-disc 4, sensor wire harness 10, Hall chip 3 is fixed in the position, right side of housing 2, near code-disc 4, arrange, code-disc 4 is fixed on the collar 14 of axis 1, code-disc 4 has along the spaced a plurality of teeth 41 of circumferential direction, Hall chip 3 senses the end face of the tooth 41 of code-disc 4 by contactless mode, thereby obtain rotative speed and the hand of rotation signal of axis 1, and output to electronic system by sensor wire harness 10, here adopting structure and the measuring principle of the sensor of Hall chip 3 and code-disc 4 is also the prior art that belongs to dawn known to a person skilled in the art, therefore here do not repeat yet.The collar 14 that code-disc 4 is installed goes out with collar 13 one machine-shaping on centerless grinder that bearing 8 is installed, and guarantees same diameter of axle setting.With respect in background technology, code-disc 4 ' being arranged in shaft shoulder portion 11 ', the utility model is arranged on code-disc 4 on collar 14, the radial dimension of code-disc 4 increases, specifically, the height of the increment face that can be sensed by Hall chip 3 on code-disc 4 increases 0.8-1.3mm downwards, thereby strengthens the signal strength of Hall chip 3 outputs.
The centre shaft that Fig. 3 and Fig. 4 show, the size of collar 13 that bearing 8 is installed on axis 1 is identical with the collar 13 ' in background technology, and when the size of housing 2 is identical with housing 2 ' in background technology, between housing 2 of the present utility model and axis 1, there is more space, thus convenient for assembly.
Although the utility model is only described with regard to some exemplary embodiment, these descriptions should only not be construed as limiting as example.In the scope of recording at appended claims, do not departing from the utility model spirit and scope situation, various variations are all possible.
Claims (4)
1. the centre shaft of a belt sensor, comprise the axis that can rotate, inner ring is the pair of bearings of fixed cover on the both ends of described axis respectively, be fixed on the housing between the outer ring of described pair of bearings, described sensor comprises the magnet ring being fixed on described axis, be fixed in described housing and can sense that thereby described magnet ring obtains the rotative speed of described axis and the Hall chip of hand of rotation signal, it is characterized in that: described axis all offers the groove extending along circumferential direction being positioned on the inside line of described pair of bearings, described in each, in groove, all snapped in snap ring, described in each, snap ring is all conflicted on the inner ring of the described bearing of correspondence, on described axis, also offer along circumferential direction and extend the positioning groove connecting, described magnet ring injection moulding enters in described positioning groove, the position that is positioned at described positioning groove both sides on described axis is one-body molded with the position that described pair of bearings is installed, and same diameter of axle setting.
2. the centre shaft of a belt sensor, comprise the axis that can rotate, inner ring is the pair of bearings of fixed cover on the both ends of described axis respectively, be fixed on the housing between the outer ring of described pair of bearings, described sensor comprises and is fixed on described axis and has along the code-disc of the spaced a plurality of teeth of circumferential direction, thereby be fixed on, in described housing, can sense that the increment face of described code-disc obtains the rotative speed of described axis and the Hall chip of hand of rotation signal, it is characterized in that: described axis all offers the groove extending along circumferential direction being positioned on the inside line of described pair of bearings, described in each, in groove, all snapped in snap ring, described in each, snap ring is all conflicted on the inner ring of the described bearing of correspondence, the position that described code-disc is installed on described axis is one-body molded with the position that described pair of bearings is installed, and same diameter of axle setting, the height of the increment face that can be sensed by described Hall chip on described code-disc increases 0.8-1.3mm downwards.
3. the centre shaft of belt sensor as claimed in claim 1 or 2, is characterized in that: described groove is along the circumferential perforation setting of described axis.
4. the centre shaft of belt sensor as claimed in claim 1 or 2, is characterized in that: described bearing adopts deep groove ball bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320490707.6U CN203528739U (en) | 2013-08-12 | 2013-08-12 | Center shaft system with sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320490707.6U CN203528739U (en) | 2013-08-12 | 2013-08-12 | Center shaft system with sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203528739U true CN203528739U (en) | 2014-04-09 |
Family
ID=50414983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320490707.6U Expired - Fee Related CN203528739U (en) | 2013-08-12 | 2013-08-12 | Center shaft system with sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203528739U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108458053A (en) * | 2017-02-21 | 2018-08-28 | 斯凯孚公司 | The axis being instrumented for condition monitoring |
| CN110832754A (en) * | 2017-06-02 | 2020-02-21 | 法雷奥系统公司 | Gear motor for a motor vehicle scraping system |
-
2013
- 2013-08-12 CN CN201320490707.6U patent/CN203528739U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108458053A (en) * | 2017-02-21 | 2018-08-28 | 斯凯孚公司 | The axis being instrumented for condition monitoring |
| CN108458053B (en) * | 2017-02-21 | 2022-08-12 | 斯凯孚公司 | Instrumented shafts for condition monitoring |
| CN110832754A (en) * | 2017-06-02 | 2020-02-21 | 法雷奥系统公司 | Gear motor for a motor vehicle scraping system |
| CN110832754B (en) * | 2017-06-02 | 2021-10-26 | 法雷奥系统公司 | Gear motor for a motor vehicle scraping system |
| US11548475B2 (en) | 2017-06-02 | 2023-01-10 | Valeo Systèmes d'Essuyage | Gear motor for motor vehicle wiping system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5615829B2 (en) | Rotating bearing device with measuring equipment for motorcycles in particular | |
| CN203612162U (en) | Torque sensor, drive unit and electric assisted bicycle | |
| EP2634069A3 (en) | Torque detection device, method of manufacturing torque detection device, and electric power steering system including torque detection device | |
| CN103973002B (en) | Rotor Assembly and motor | |
| EP3190029A1 (en) | Torque sensor device | |
| CN203528739U (en) | Center shaft system with sensor | |
| CN103423322A (en) | Sensor bracket cover for hub bearing | |
| CN107017736A (en) | Motor measurement apparatus | |
| KR20040058052A (en) | Rolling bearing apparatus | |
| CN204037829U (en) | Battery-driven car axletree mechanics sensing device | |
| CN203376341U (en) | Centre shaft speed and direction sensing device | |
| CN102589772A (en) | Novel electric power steering system torque sensor | |
| WO2015010736A1 (en) | A sensor-bearing unit, a mechanical system comprising at least one such unit and implementing methods | |
| CN203606051U (en) | Electromagnetic torque sensor in electric power steering system | |
| CN203180724U (en) | Magnetic encoders used in hub motors of electric bicycles | |
| CN202732652U (en) | An induction shaft of a torque sensor | |
| CN203214597U (en) | Double-row conical wheel hub bearing unit | |
| CN207117455U (en) | Insertion motor based on ball screw | |
| CN203883568U (en) | Motor rotor assembly and motor | |
| CN210898832U (en) | Magnetic ring encoder structure of permanent magnet synchronous traction machine | |
| CN203024728U (en) | 360-degree angle transducer | |
| US20100060271A1 (en) | Sensor device for measuring rotational movements of a wheel bearing | |
| CN101860160B (en) | DC brushless motor with encoder | |
| CN106863129B (en) | Symmetric support rotary tool head | |
| CN202002610U (en) | Crankshaft angle signal picking device for engine |
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: 20140409 Termination date: 20200812 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |