CN203376341U - Centre shaft speed and direction sensing device - Google Patents
Centre shaft speed and direction sensing device Download PDFInfo
- Publication number
- CN203376341U CN203376341U CN201320477593.1U CN201320477593U CN203376341U CN 203376341 U CN203376341 U CN 203376341U CN 201320477593 U CN201320477593 U CN 201320477593U CN 203376341 U CN203376341 U CN 203376341U
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- axis
- sensing device
- magnetic poles
- outer sleeve
- magnet ring
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Abstract
The utility model discloses a centre shaft speed and direction sensing device. The device comprises a centre shaft, a left bearing, a right bearing, a corresponding left bearing bowl, a corresponding right bearing bowl, a multi-pole magnetic ring fixed on the centre shaft and a support outer sleeve which is fixed on the centre shaft through the bearings and the bearing bowl and wraps the multi-pole magnetic ring. The multi-pole magnetic ring is individually fixed on the centre shaft. A position on the support outer sleeve, which corresponds to the multi-pole magnetic ring, is provided with a Hall sensing circuit. The multi-pole magnetic ring and the Hall sensing circuit are arranged on the centre shaft so that reliability is good and durability is high. The multi-pole magnetic ring is individually fixed on the centre shaft and other elements are not needed to be used to position the multi-pole magnetic ring so that the structure is simple and an occupation space is small.
Description
[technical field]
The utility model, about a kind of axis velocity reversal sensing device, relates in particular to a kind of being arranged in electric motor car and is used for measuring foot-operated rotating speed and the device of direction.
[background technology]
Moped Scooter electric-control system in riding the process of sailing needs foot-operated direction and the rotating speed of detecting in time, controls in time torque and the speed of motor according to foot-operated direction and revolution speed control system, to reach the comfort level of riding of better people's car one.Traditional electric motor car speed sensing device is all on comprising the magnet that is arranged on hull and being fixed on vehicle frame and the sensor corresponding with magnet, in use be arranged on thus magnet on hull and can produce signal according to the foot-operated speed rotated, then by sensor by the signal that obtains by control system by the Speed display of electric motor car on instrument.
Under common situation, its existing problem is that magnet is arranged on disk, produces the variation in magnetic field according to the foot-operated speed rotated, and dynamic process easily makes the magnet positioning cause to depart from thus, and then makes inductive head can't detect signal, poor reliability; And the magnet of traditional electric motor car and sensor all are exposed to vehicle frame outside, very easily damage, accumulate dust, and can be all that sensor very easily damages through the generation weathering such as wind, rainwater immersion and oxidation.
Therefore, be necessary aforementioned axis speed sensing device is improved to overcome the defect of prior art.
[utility model content]
The purpose of this utility model is to provide a kind of good reliability, permanance is high and installation and maintenance electric vehicle axis velocity reversal sensing device easily.
Axis velocity reversal sensing device of the present utility model can be achieved through the following technical solutions: a kind of axis velocity reversal sensing device, and it comprises axis, left and right bearing and corresponding left and right cup, be fixed on many magnetic poles magnet ring on axis and be fixed on axis and coat the support outer sleeve of many magnetic poles magnet ring by bearing and cup; It is characterized in that: many magnetic poles magnet ring is to be fixed on separately on axis, and position corresponding with many magnetic poles magnet ring on the support outer sleeve is provided with the hall sensing circuit.
Further, between described many magnetic poles magnet ring and axle be logical clearance fit spacing fixing with stage portion or plane on axis.
Further, the stage portion on axis for many magnetic poles magnet ring axis axially on provide spacing, described many magnetic poles magnet ring further cements on the stage portion of axis by glue.
Further, described many magnetic poles magnet ring protrudes from the setting of axis circumferential surface.
Further, on described support outer sleeve, with the corresponding position of many magnetic poles magnet ring, be provided with protuberance, this protuberance is provided with groove to hold described hall sensing circuit.
Further, described hall sensing circuit is to sink in described groove and by the waterproof fixing glue poured in groove to seal.
Further, also being provided with the wire hole be connected with groove on the protuberance of described support outer sleeve passes for the wire rod with the electric connection of hall sensing circuit.
Further, described support outer sleeve is the little shape in large centre, both sides, and described protuberance is arranged on middle little part.
Further, described left and right bearing is directly to be fixed on axis, described support outer sleeve is arranged on this between bearing, and left and right cup is set in support outer sleeve and this to bearing outside surface and for the support outer sleeve and bearing provides axially and radially spacing.
Further, when the axis forward, the hall sensing circuit has pulse signal; When axis reverses, the hall sensing circuit does not have pulse signal.
Compared to prior art, many magnetic poles magnet ring and the hall sensing circuit of the utility model axis velocity reversal sensing device all are arranged on axis, and its good reliability permanance is high; And many magnetic poles magnet ring is fixed on separately on axis, without by other elements, many magnetic poles magnet ring being positioned, it is simple in structure and take up room little.
[accompanying drawing explanation]
Fig. 1 is the three-dimensional combination figure of the utility model axis velocity reversal sensing device.
Fig. 2 is the three-dimensional exploded view of the utility model axis velocity reversal sensing device.
Fig. 3 is the cut-open view of the utility model axis velocity reversal sensing device.
[embodiment]
Refer to shown in Fig. 1 to Fig. 3, the utility model axis velocity reversal sensing device is mainly used in electric motor car, be used for measuring speed and direction that axis rotates, it comprises axis 1, be fixed on the many magnetic poles magnet ring 2 on axis 1 and be set on axis 1 and coat the support outer sleeve 3 of many magnetic poles magnet ring 2.
Axis 1 is provided with the stage portion 10 of corresponding fixing many magnetic poles magnet ring 2, for many magnetic poles magnet ring 2 axis 1 axially on provide spacing.More firm for making to coordinate between the two, many magnetic poles magnet ring 2 further cements on the stage portion 10 of axis 1 by glue, thereby makes between the two without locating by other elements, and in Fig. 3, many magnetic poles magnet ring 2 protrudes from the circumferential surface setting of axis 1.On the support outer sleeve, 3 positions corresponding with many magnetic poles magnet ring 2 are provided with hall sensing circuit 4.
Support outer sleeve 3 is fixed on axis 1 by pair of bearings 5,6 and the pair of bearings bowl 7,8 that is located at its two ends.Its centre bearer 5,6 directly is fixed on axis 1, support outer sleeve 3 two ends are by bearing 5,6 clamping, and each cup 7,8 is set in respectively on the outside surface of an end of a bearing 5,6 and support outer sleeve 3 and for support outer sleeve 3 and bearing 5,6 provides axially and radially spacing simultaneously.The outside surface of described cup 7,8 is provided with external thread and is used for coordinating with the axis sleeve (not shown) of the vehicle frame of electric motor car.
Support outer sleeve 3 is the little shape in large centre, both sides, on support outer sleeve 3, with many magnetic poles magnet ring 2 opposite positions, is provided with protuberance 31 in middle little position, and this protuberance 31 is provided with groove 310 to hold hall sensing circuit 4.Hall sensing circuit 4 is to sink in described groove 310 and by the waterproof fixing glue 11 poured in groove 310 to seal.Also being provided with the wire hole 311 be connected with groove 310 on the protuberance 31 of support outer sleeve 3 passes for the wire rod 9 with 4 electric connections of hall sensing circuit.
First hall sensing circuit 4 is had to the face brush marine glue of Hall IC during installation, then wire rod 9 is penetrated in wire hole 311 and is welded on hall sensing circuit 4 again, then Hall is packed sensor circuit 4 in groove 310 into.The right bearing 6 is contained on axis 1, then support outer sleeve 3 is packed on axis 1, and then left bearing 5 is contained on axis 1.Finally assemble pair of bearings bowl 7,8, one of them cup and support outer sleeve 3 are to adopt interference fit and pour into waterproof fixing glue 11 to guarantee sealing in groove 310 again.
When axis 1 forward, hall sensing circuit 4 has pulse signal; When axis 1 reversion, hall sensing circuit 4 does not have pulse signal.
While packing car load vehicle frame axis sleeve into, first outlet 9 is passed from vehicle frame axis sleeve the inside, then will wherein with the cup of support outer sleeve 3 close-fittings, lock vehicle frame axis sleeve, finally will assemble many magnetic poles magnet ring 2, support outer sleeve 3, left and right bearing 5,6 another cup that locks again after firmly filling in its cup.
In other embodiments, also can coordinate and directly interfix with the plane formed on many magnetic poles magnet ring by axis, forming a plane on axis and many magnetic poles magnet ring.
When the electric motor car driving process, axis 1 will be with rotation therewith, and because many magnetic poles magnet ring 2 is arranged on axis 1, hall sensing circuit 4 is arranged on support outer sleeve 3, thereby can respond to it is forward or reversion, the speed of judgement rotation is simultaneously also exported corresponding pulse signal number.Many magnetic poles magnet ring 2 and hall sensing circuit 4 all are arranged on axis 1, and its good reliability and permanance are high; Many magnetic poles magnet ring 2 directly is fixed on axis 1, and without positioning by other elements, it is simple in structure and take up room little; Hall sensing circuit 4 is housed in the groove 310 of support outer sleeve 3 and is fixing by bearing 5,6 and cup 7,8, not only good sealing effect and be easy to dismounting and maintenance.In addition, electronic induction element 4 and wire rod 9 all are fixed in support outer sleeve 3, and this spline structure is simpler.Axis velocity reversal sensing device is to be assembled in the axis sleeve of car load vehicle frame simultaneously, can make the velocity reversal sensing device safer, reliable, avoids damaging, accumulates dust and wind, rainwater immersion etc. and produce weathering and oxidation.Owing to being contained in vehicle frame axis sleeve, also make the car load outward appearance more attractive in appearance.
Claims (10)
1. an axis velocity reversal sensing device, it comprises axis, left and right bearing and corresponding left and right cup, be fixed on many magnetic poles magnet ring on axis and be fixed on axis and coat the support outer sleeve of many magnetic poles magnet ring by bearing and cup; It is characterized in that: many magnetic poles magnet ring is to be fixed on separately on axis, and position corresponding with many magnetic poles magnet ring on the support outer sleeve is provided with the hall sensing circuit.
2. axis velocity reversal sensing device as claimed in claim 1, is characterized in that: between described many magnetic poles magnet ring and axle, be logical clearance fit spacing fixing with stage portion or plane on axis.
3. axis velocity reversal sensing device as claimed in claim 2 is characterized in that: the stage portion on axis for many magnetic poles magnet ring axis axially on provide spacing, described many magnetic poles magnet ring further cements on the stage portion of axis by glue.
4. axis velocity reversal sensing device as claimed in claim 2, it is characterized in that: described many magnetic poles magnet ring protrudes from the setting of axis circumferential surface.
5. axis velocity reversal sensing device as claimed in claim 1, it is characterized in that: be provided with protuberance with the corresponding position of many magnetic poles magnet ring on described support outer sleeve, this protuberance is provided with groove to hold described hall sensing circuit.
6. axis velocity reversal sensing device as claimed in claim 5 is characterized in that: described hall sensing circuit is to sink in described groove and by pouring into the waterproof fixing glue sealing in groove.
7. axis velocity reversal sensing device as claimed in claim 5, is characterized in that: also be provided with the wire hole be connected with groove on the protuberance of described support outer sleeve and pass for the wire rod with the electric connection of hall sensing circuit.
8. axis velocity reversal sensing device as claimed in claim 5, it is characterized in that: described support outer sleeve is the little shape in large centre, both sides, in the middle of described protuberance is arranged on little part.
9. axis velocity reversal sensing device as claimed in claim 1, it is characterized in that: left and right bearing is directly to be fixed on axis, described support outer sleeve is arranged on this between bearing, and left and right cup is set in support outer sleeve and this to bearing outside surface and for the support outer sleeve and bearing provides axially and radially spacing.
10. axis velocity reversal sensing device as claimed in claim 1, it is characterized in that: when the axis forward, the hall sensing circuit has pulse signal; When axis reverses, the hall sensing circuit does not have pulse signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320477593.1U CN203376341U (en) | 2013-08-01 | 2013-08-01 | Centre shaft speed and direction sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320477593.1U CN203376341U (en) | 2013-08-01 | 2013-08-01 | Centre shaft speed and direction sensing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203376341U true CN203376341U (en) | 2014-01-01 |
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ID=49838864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320477593.1U Expired - Fee Related CN203376341U (en) | 2013-08-01 | 2013-08-01 | Centre shaft speed and direction sensing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203376341U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015149626A1 (en) * | 2014-04-03 | 2015-10-08 | 昆山攀登变频电子科技有限公司 | Apparatus for sensing electric vehicle mechanics |
| CN107054555A (en) * | 2017-06-08 | 2017-08-18 | 杭州欣硬科技有限公司 | Multi-speed bicycle and its gear changing mechanism and device |
| CN107554674A (en) * | 2017-09-29 | 2018-01-09 | 昆山攀登电子科技有限公司 | One kind is remotely located multifunctional integrated axis |
| CN108327842A (en) * | 2018-04-23 | 2018-07-27 | 查发华 | A kind of concealed moped hall sensing device |
| CN108627294A (en) * | 2018-05-07 | 2018-10-09 | 重庆三叶花科技有限公司 | Low-resistance formula axis torque measuring method |
-
2013
- 2013-08-01 CN CN201320477593.1U patent/CN203376341U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015149626A1 (en) * | 2014-04-03 | 2015-10-08 | 昆山攀登变频电子科技有限公司 | Apparatus for sensing electric vehicle mechanics |
| CN107054555A (en) * | 2017-06-08 | 2017-08-18 | 杭州欣硬科技有限公司 | Multi-speed bicycle and its gear changing mechanism and device |
| CN107554674A (en) * | 2017-09-29 | 2018-01-09 | 昆山攀登电子科技有限公司 | One kind is remotely located multifunctional integrated axis |
| CN108327842A (en) * | 2018-04-23 | 2018-07-27 | 查发华 | A kind of concealed moped hall sensing device |
| CN108627294A (en) * | 2018-05-07 | 2018-10-09 | 重庆三叶花科技有限公司 | Low-resistance formula axis torque measuring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Kang Xianbing Document name: Notification to Pay the Fees |
|
| 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: 20140101 Termination date: 20180801 |