CN118348273A - Reluctance type rotating speed sensor with rub-impact judging function and judging method thereof - Google Patents
Reluctance type rotating speed sensor with rub-impact judging function and judging method thereof Download PDFInfo
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- CN118348273A CN118348273A CN202410532085.1A CN202410532085A CN118348273A CN 118348273 A CN118348273 A CN 118348273A CN 202410532085 A CN202410532085 A CN 202410532085A CN 118348273 A CN118348273 A CN 118348273A
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- 238000000034 method Methods 0.000 title claims abstract description 8
- 230000007246 mechanism Effects 0.000 claims abstract description 53
- 238000007789 sealing Methods 0.000 claims abstract description 33
- 230000005540 biological transmission Effects 0.000 claims abstract description 26
- 239000010687 lubricating oil Substances 0.000 claims abstract description 6
- 238000006073 displacement reaction Methods 0.000 claims description 42
- 238000012545 processing Methods 0.000 claims description 18
- 238000001514 detection method Methods 0.000 claims description 15
- 230000008859 change Effects 0.000 claims description 10
- 238000013211 curve analysis Methods 0.000 claims description 3
- 230000000712 assembly Effects 0.000 abstract description 7
- 238000000429 assembly Methods 0.000 abstract description 7
- 238000005299 abrasion Methods 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 3
- 230000001050 lubricating effect Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 5
- 230000006698 induction Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Abstract
The invention provides a reluctance type rotating speed sensor with a rub-impact judging function and a judging method thereof, and the sensor comprises a transmission mechanism, wherein a connecting mechanism is arranged at an input shaft at the front end of the transmission mechanism, a reluctance type rotating speed detecting mechanism is arranged at an output shaft at the rear end of the transmission mechanism, the transmission mechanism comprises a sealing shell, and the sealing shell comprises a frame and sealing covers fixedly connected to openings at the front side and the rear side of the frame. The invention is provided with a sealing mechanism, a rotating assembly of a rotating connection structure and a magnetic feedback rotating structure is arranged in the sealing mechanism, gears of the two rotating assemblies are arranged in the sealing mechanism in an up-down meshed mode, lubricating oil liquid is filled in the sealing mechanism, the lubricating oil liquid is used for lubricating and cooling when the two groups of rotating assemblies rotate, and the abrasion of the rotating assemblies is small.
Description
Technical Field
The invention belongs to the technical field of automobile components, and particularly relates to a reluctance type rotating speed sensor with a rub-impact judging function and a judging method thereof.
Background
Three basic types of magnetoresistive sensors, inductive sensors, transformer sensors and eddy current sensors can be produced as rotational speed sensors. Inductive speed sensors are widely used, which use magnetic flux variations to generate an induced potential, the magnitude of which depends on the rate of change of the magnetic flux, including magnetoresistive speed sensors.
The Chinese patent publication No. CN104977423B discloses a magneto-electric rotating speed sensor, the skeleton of which is a ladder-shaped sleeve consisting of a narrow tube and a wide tube, a ladder hole is also arranged in the skeleton, the armature is T-shaped, the narrower end of the armature penetrates through the narrow tube at the front end of the skeleton, so that the armature is tightly nested with the ladder hole in the skeleton, the front end of the magnetic steel is tightly attached to the rear end of the armature, the interference of high-frequency vibration and high-temperature environment can be resisted, and accurate rotating speed measurement data can be provided.
However, when the magnetic resistance type rotating speed sensor is in actual use, as the rotating connection structure and the detection structure are arranged on the same central axis, the rotating structure adopts a direct contact type transmission structure design and lacks a lubrication structure, and the rotating structure is worn greatly after rotating at a high speed for a long time, so that the connection assembly is easily damaged or falls off.
Disclosure of Invention
In order to solve the technical problems, the invention provides a reluctance type rotating speed sensor with a rub-impact judging function and a judging method thereof.
The invention is realized by adopting the following technical scheme:
the utility model provides a magnetic resistance type rotation speed sensor with bump grinding judging function, includes drive mechanism, drive mechanism front end input shaft department is provided with coupling mechanism, drive mechanism rear end output shaft department is provided with magnetic resistance rotation speed detection mechanism, drive mechanism includes sealed casing, and sealed casing includes a frame and fixed connection in the sealed lid of frame front and back both sides opening part, be the meshing form about in the frame and be provided with two drive gears, filling hole and inside packing have been seted up to the frame top, the shaft hole has been seted up to the sealed lower extreme of front end, below the shaft hole internal rotation is connected with the input shaft, the shaft hole has been seted up to the rear end sealed upper end, the top the shaft hole internal rotation is connected with the output shaft, input shaft rear end fixed connection below drive gear, output shaft front end fixed connection top drive gear.
Further, the magnetic resistance rotating speed detection mechanism comprises a mounting shell fixedly connected to the upper end of the rear side sealing cover, and two through holes are symmetrically formed in the top of the mounting shell.
Further, connectors are fixedly installed in the two through holes, the top ends of the two connectors are connected with the same data processing microcomputer, and the bottom ends of the two connectors are respectively connected with a magnetic resistance sensor.
Furthermore, the wireless data receiver is arranged in the data processing microcomputer, and a data line is fixedly connected to a data port at the rear end of the data processing microcomputer.
Further, the two magnetic resistance sensors are symmetrically arranged, two symmetrical magnetic blocks are arranged on the inner sides of the two magnetic resistance sensors in a matched mode, and the side walls of one sides of the two magnetic blocks, which are opposite, are fixedly connected with the output shaft.
Furthermore, the connecting mechanism comprises connecting bolts fixedly connected to two sides of the front end of the input shaft, and a connecting frame is fixedly arranged on the outer sides of the two connecting bolts respectively.
Furthermore, a strip-shaped adjusting groove is formed between the two side walls of the connecting frame and corresponds to the connecting bolts of the two side walls of the connecting frame, and the front ends of the two connecting frames are fixedly provided with the same displacement sensor.
Further, a connecting disc is fixedly connected to the front detection end of the displacement sensor, and a wireless data transmitter matched with the wireless data receiver is arranged in the displacement sensor.
Further, four grooves are formed in the outer side of the rear end of the connecting disc, and a matching hole is formed in the middle of the inner side wall of the front end of each groove.
Further, the rear end respectively fixedly connected with a supporting beam at two ends below the rear side wall of the sealing cover, two supporting beam top fixedly connected with installation shells, the rear end fixedly connected with mounting bracket at the middle part below the rear side wall of the sealing cover, the mounting bracket is an L-shaped bracket, two installation holes are symmetrically formed in the upper end of the mounting bracket, and a control valve is fixedly installed at the top wall of the frame and located at the filling hole.
Furthermore, the magnetic resistance induction structure can record the magnetic resistance change of the rotating permanent magnet assembly, and corresponding rotating speed data is obtained through analysis of the magnetic resistance change curve.
Further, the displacement sensing mechanism at the rotary connecting structure can detect the displacement data of the connecting end, and normally detect that the rotary displacement is in a set range, namely, in a non-collision state, if the rotary displacement is in large collision or friction contact, the displacement data of the rotary displacement sensing mechanism is in large fluctuation, and the rotary displacement sensing mechanism can be immediately fed back, namely, in a collision state.
Compared with the prior art, the invention has the following beneficial effects:
1. The invention is provided with the sealing mechanism, the rotating components of the rotating connection structure and the magnetic feedback rotating structure are arranged in the sealing mechanism, the gears of the two rotating components are arranged in the sealing mechanism in an up-down meshed mode, and lubricating oil liquid is filled in the sealing mechanism for lubricating and cooling when the two groups of rotating components rotate, so that the abrasion of the rotating components is small.
2. The invention is provided with a displacement sensor at the detection end, namely, the rear end of the connecting disc is fixedly provided with a displacement sensor, the sensor is internally provided with a wireless data transmitter, meanwhile, the sensor data processing microcomputer is provided with a corresponding wireless data receiver, the connecting disc is connected with a rotating speed detection part for vehicles, and then the displacement of the rotating speed detection part is normally detected to be in a set range, and if the rotating speed detection part is subjected to large collision or friction contact, the displacement data is greatly changed, and the feedback can be immediately obtained, namely, the invention has a rub-impact judging function.
Drawings
Fig. 1 is a perspective view of the whole of the present invention.
Fig. 2 is a perspective view of the whole of the present invention.
Fig. 3 is a perspective view of the overall removed housing structure of the present invention.
Fig. 4 is a perspective view of the overall removed housing structure of the present invention.
Fig. 5 is a perspective view of the transmission structure of the present invention.
Fig. 6 is a disassembled perspective view of the housing structure of the present invention.
In the figure, the correspondence between the component names and the drawing numbers is:
1. A transmission mechanism; 11. a frame; 12. sealing cover; 13. a shaft hole; 14. filling the hole; 15. a transmission gear; 16. a control valve; 17. an input shaft; 18. an output shaft; 19. a magnetic block;
2. A reluctance rotation speed detection mechanism; 21. a mounting shell; 22. a through hole; 23. a magnetoresistive sensor; 24. a connector; 25. a data processing microcomputer; 26. a data line;
3. a support beam;
4. a mounting frame;
5. A connecting mechanism; 51. a connecting frame; 52. a connecting bolt; 53. a displacement sensor; 54. and a connecting disc.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the invention but are not intended to limit the scope of the invention.
In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Examples:
as shown in fig. 1 to 6:
The invention provides a reluctance type rotating speed sensor with a rub-impact judging function and a judging method thereof, and the reluctance type rotating speed sensor comprises a transmission mechanism 1, wherein a connecting mechanism 5 is arranged at an input shaft 17 at the front end of the transmission mechanism 1, a reluctance type rotating speed detecting mechanism 2 is arranged at an output shaft 18 at the rear end of the transmission mechanism 1, the transmission mechanism 1 comprises a sealing shell, the sealing shell comprises a frame 11 and sealing covers 12 fixedly connected to openings at the front side and the rear side of the frame 11, two transmission gears 15 are arranged in the frame 11 in a vertically meshed mode, a filling hole 14 is formed in the top of the frame 11, lubricating oil is filled in the frame 11, a control valve 16 is fixedly arranged at the top wall of the frame 11 and the filling hole 14, rotating assemblies of a rotary connecting structure and a magnetic feedback rotating structure are arranged in the sealing mechanism, gears of the two rotating assemblies are arranged in the sealing mechanism in a vertically meshed mode, lubricating oil filling is arranged in the sealing mechanism, lubrication and cooling are used for the two groups of rotating assemblies during rotation, and abrasion of the rotating assemblies is small.
The lower end of the front end sealing cover 12 is provided with a shaft hole 13, the lower shaft hole 13 is rotationally connected with an input shaft 17, the upper end of the rear end sealing cover 12 is provided with a shaft hole 13, the upper shaft hole 13 is rotationally connected with an output shaft 18, the rear end of the input shaft 17 is fixedly connected with a lower transmission gear 15, the front end of the output shaft 18 is fixedly connected with the upper transmission gear 15, the lower transmission gear 15 can be driven to rotate through the rotation of the input shaft 17, and the upper transmission gear 15 is driven to rotate to drive the output shaft 18.
The magneto-resistance rotating speed detecting mechanism 2 comprises a mounting shell 21 fixedly connected to the upper end of the rear sealing cover 12, two through holes 22 are symmetrically formed in the top of the mounting shell 21, connectors 24 are fixedly installed in the two through holes 22, the tops of the two connectors 24 are connected with a same data processing microcomputer 25, magneto-resistance sensors 23 are respectively connected to the bottom ends of the two connectors 24, the two magneto-resistance sensors 23 are symmetrically arranged and matched with two symmetrical magnetic blocks 19 on the inner sides of the two magneto-resistance sensors, the two magnetic blocks 19 are fixedly connected with an output shaft 18 on the side wall on the opposite side, the rotation of the output shaft 18 can drive the magnetic blocks 19 on the outer side of the output shaft to rotate, the magneto-resistance sensors 23 can conduct magneto-resistance change recording on the rotating magnetic blocks 19, and the magneto-resistance change recording is transmitted to the data processing microcomputer 25 through the connectors 24 for data processing, and corresponding rotating speed data is obtained through magneto-resistance change curve analysis.
The data processing microcomputer 25 is internally provided with a wireless data receiver, the data port at the rear end of the data processing microcomputer 25 is fixedly connected with a data wire 26, the front ends of the two connecting frames 51 are fixedly provided with the same displacement sensor 53, the front detection end of the displacement sensor 53 is fixedly connected with a connecting disc 54, the displacement sensor 53 is internally provided with a wireless data transmitter matched with the wireless data receiver, namely, the rear end of the connecting disc 54 is fixedly provided with the displacement sensor 53, the wireless data transmitter is arranged in the sensor, meanwhile, the sensor data processing microcomputer 25 is provided with a corresponding wireless data receiver, after the connecting disc 54 is connected with a rotating speed detection part for a vehicle, the displacement of normal detection rotation is in a set range, if the displacement data of the displacement sensor is greatly changed when the displacement sensor is subjected to large collision or friction contact, the data processing microcomputer 25 can be fed back immediately, and the collision and abrasion judgment function is realized.
The connecting mechanism 5 comprises connecting bolts 52 fixedly connected to two sides of the front end of the input shaft 17, one connecting frame 51 is fixedly arranged on the outer sides of the two connecting bolts 52 respectively, a strip-shaped adjusting groove is formed between two side walls of the connecting frame 51 and corresponds to the connecting bolts 52, station adjustment of the two connecting frames 51 can be achieved by loosening the fastening nuts of the connecting bolts 52, and fastening installation of the two connecting frames 51 after adjustment can be achieved by fastening the fastening nuts of the connecting bolts 52.
Four grooves are formed in the outer side of the rear end of the connecting disc 54, a matching hole is formed in the middle of the inner side wall of the front end of each groove, and the connecting disc 54 is connected with a to-be-detected rotating speed part of a vehicle through the matching hole and a bolt.
Wherein, a supporting beam 3 is fixedly connected at two ends below the rear side wall of the rear end sealing cover 12, the top ends of the two supporting beams 3 are fixedly connected with the installation shell 21, and the two supporting beams 3 play a role in further supporting and reinforcing the installation shell 21.
Wherein, rear end sealed lid 12 rear side wall below middle part fixedly connected with mounting bracket 4, mounting bracket 4 are L shape frame and two mounting holes have been seted up to the upper end in the symmetry form, and the fixed mounting of whole magnetic resistance formula rotational speed transducer on corresponding station is carried out to the accessible mounting bracket 4 rear side mounting hole cooperation bolt.
The magnetic resistance induction structure can record magnetic resistance change of the rotating permanent magnet assembly, and corresponding rotating speed data is obtained through analysis of a magnetic resistance change curve of the magnetic resistance induction structure;
the displacement sensing mechanism at the rotary connecting structure can detect the displacement data of the connecting end, and normally detects that the rotary displacement is in a set range, namely, in a non-collision state, if the rotary displacement is in large collision or friction contact, the displacement data of the rotary displacement sensing mechanism is greatly changed, and the rotary displacement sensing mechanism can be immediately fed back, namely, in a collision state.
The working principle of the embodiment is as follows: the connection disc 54 can be connected with a vehicle to-be-detected rotating member through the connection disc 54 matched with a bolt, the connection disc 54 drives to rotate through the to-be-detected rotating member, then the displacement sensor 53 drives the input shaft 17 to rotate through the connection frame 51, the lower end transmission gear 15 is driven to rotate through the rotation of the input shaft 17, the upper end transmission gear 15 is driven to rotate to drive the output shaft 18 to rotate, the output shaft 18 rotates to drive the outer magnetic block 19 to rotate, the two magnetic resistance sensors 23 can record magnetic resistance changes of the rotating magnetic block 19, the magnetic resistance changes are transmitted to the data processing microcomputer 25 through the connector 24 to conduct data processing, corresponding rotating speed data is obtained through magnetic resistance change curve analysis, in addition, after the connection disc 54 is connected with the vehicle to-be-detected rotating member, the displacement of the normal detection rotation is in a set range, if the displacement data of the vehicle to-be-detected rotating member is greatly changed when the vehicle to-be-detected rotating member is subjected to large collision or friction contact, and the data processing microcomputer 25 can immediately feedback, namely the vehicle to have a bump judging function.
The embodiments of the invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (10)
1. The reluctance type rotating speed sensor with the collision and grinding judging function is characterized by comprising a transmission mechanism (1), wherein a connecting mechanism (5) is arranged at an input shaft (17) at the front end of the transmission mechanism (1), a reluctance type rotating speed detecting mechanism (2) is arranged at an output shaft (18) at the rear end of the transmission mechanism (1), the transmission mechanism (1) comprises a sealing shell, and the sealing shell comprises a frame (11) and sealing covers (12) fixedly connected to openings at the front side and the rear side of the frame (11);
Two transmission gears (15) are arranged in the frame (11) in an up-down meshing mode, a filling hole (14) is formed in the top of the frame (11), and lubricating oil is filled in the frame;
The lower end of the front end sealing cover (12) is provided with a shaft hole (13), the lower part of the shaft hole (13) is rotationally connected with an input shaft (17), the upper end of the rear end sealing cover (12) is provided with the shaft hole (13), and the upper part of the shaft hole (13) is rotationally connected with an output shaft (18);
the rear end of the input shaft (17) is fixedly connected with the lower transmission gear (15), and the front end of the output shaft (18) is fixedly connected with the upper transmission gear (15).
2. The magnetoresistive rotating speed sensor with the rub-impact judging function according to claim 1, wherein the magnetoresistive rotating speed detecting mechanism (2) comprises a mounting shell (21) fixedly connected to the upper end of the rear sealing cover (12), and two through holes (22) are symmetrically formed in the top of the mounting shell (21).
3. A magneto-resistive rotation speed sensor with a rub-impact judging function as claimed in claim 2, characterized in that connectors (24) are fixedly arranged in the two through holes (22), the top ends of the two connectors (24) are connected with the same data processing microcomputer (25), and the bottom ends of the two connectors (24) are respectively connected with a magneto-resistive sensor (23).
4. A magnetoresistive rotation speed sensor with a rub-impact judging function according to claim 3, characterized in that the data processing microcomputer (25) is internally provided with a wireless data receiver, and a data line (26) is fixedly connected to a rear end data port of the data processing microcomputer (25).
5. A magneto-resistive rotation speed sensor with a rub-impact judging function according to claim 3, wherein the magneto-resistive sensors (23) are symmetrically arranged and two symmetrical magnetic blocks (19) are cooperatively arranged on the inner sides of the magneto-resistive sensors, and the side walls of the two magnetic blocks (19) on the opposite sides are fixedly connected with an output shaft (18).
6. A magnetoresistive rotating speed sensor with a rub-impact judging function according to claim 1, characterized in that the connecting mechanism (5) comprises connecting bolts (52) fixedly connected to both sides of the front end of the input shaft (17), and a connecting frame (51) is fixedly arranged outside each connecting bolt (52).
7. The magnetoresistive rotating speed sensor with the rub-impact judging function according to claim 6, wherein a strip-shaped adjusting groove is arranged between two side walls of the connecting frame (51) corresponding to the connecting bolts (52), and the same displacement sensor (53) is fixedly arranged at the front ends of the two connecting frames (51).
8. The reluctance type rotating speed sensor with the rub-impact judging function according to claim 7, wherein a connecting disc (54) is fixedly connected to a detection end of the front side of the displacement sensor (53), a wireless data transmitter matched with a wireless data receiver is arranged in the displacement sensor (53), four grooves are formed in the outer side of the rear end of the connecting disc (54), and a matching hole is formed in the middle of the inner side wall of the front end of each groove.
9. The magnetoresistive rotating speed sensor with the rub-impact judging function according to claim 1, wherein two ends of the lower side wall of the rear side of the sealing cover (12) are fixedly connected with a supporting beam (3), the top ends of the two supporting beams (3) are fixedly connected with a mounting shell (21), the middle of the lower side of the rear side wall of the sealing cover (12) is fixedly connected with a mounting frame (4), the mounting frame (4) is an L-shaped frame, two mounting holes are symmetrically formed in the upper end of the mounting frame (4), and a control valve (16) is fixedly mounted on the top wall of the frame (11) and located at the filling hole (14).
10. A method for judging a magneto-resistive rotation speed sensor with a rub-impact judging function, characterized in that the method is based on the magneto-resistive rotation speed sensor with rub-impact judging function according to any one of claims 1 to 9, the magneto-resistive rotation speed sensor can record magneto-resistive changes of a rotating permanent magnet assembly, and corresponding rotation speed data is obtained through magneto-resistive change curve analysis;
The displacement sensing mechanism at the rotary connecting structure can detect displacement data of the connecting end, normal detection of rotary displacement is in a set range, namely, the non-collision state, and if the displacement sensing mechanism is subjected to large collision or friction contact, the displacement data of the displacement sensing mechanism is subjected to large variation, and then feedback is immediately obtained, namely, the collision state.
Publications (1)
| Publication Number | Publication Date |
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| CN118348273A true CN118348273A (en) | 2024-07-16 |
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