CN202757949U - Hall effect type automobile wheel speed detecting device with buffer - Google Patents
Hall effect type automobile wheel speed detecting device with buffer Download PDFInfo
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- CN202757949U CN202757949U CN 201220270624 CN201220270624U CN202757949U CN 202757949 U CN202757949 U CN 202757949U CN 201220270624 CN201220270624 CN 201220270624 CN 201220270624 U CN201220270624 U CN 201220270624U CN 202757949 U CN202757949 U CN 202757949U
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Abstract
The utility model discloses a Hall effect type automobile wheel speed detecting device with a buffer. The Hall effect type automobile wheel speed detecting device mainly comprises an L-shaped connecting rod, a coded disc mechanism assembly, a wheel speed detecting mechanism assembly, the buffer and an upper fixing mechanism assembly. The coded disc mechanism assembly on the lower portion of the wheel speed detecting device is fixedly mounted on a hub of a detected automobile I by a connecting device III, so that a coded disc and a wheel rotate synchronously. A strong magnet in the upper fixing mechanism assembly is absorbed onto an automobile body, so that the upper portion of the wheel speed detecting device is fixed. A coded disc structure with mounting holes radially arranged at unequal angles can be quickly and conveniently mounted on the hub of the automobile and is applicable to different types of automobiles with different quantities of nuts. Pulse signal testing holes which are uniformly distributed are arranged on the edge of the coded disc, so that the wheel speed is directly measured. A vertical buffering mechanism in the device eliminates influences of vertical vibration to the wheel speed detecting device when the automobile runs. The Hall effect type automobile wheel speed detecting device is low in cost, convenient to install and high in test precision and universality.
Description
Technical field
The utility model relates to a kind of detection system that is applied to automotive field, and specifically, the utility model relates to a kind of hall effect type automobile wheel speed pick-up unit with impact damper.
Background technology
When vehicle carried out actual road test, wheel speed was one of important test parameter, and is significant for the evaluation of vehicle performance.Independently the wheel speed proving installation is had a try when testing carrying out the road at present, have that versatility is poor, be subjected to the shortcomings such as ectocine is large in the test, and overseas equipment is expensive, and these are all restricting the test of wheel speed parameter to a certain extent.
Through retrieval, (1) patent publication No.: CN101339199A; Denomination of invention: electromagnetic type automobile wheel speed sensor and installation method thereof; Open day: on January 7th, 2009; The applying date: on August 1st, 2008.This patent proposes a kind of electromagnetic type automobile wheel speed sensor, gear ring is fixed on the wheel hub with vehicle wheel rotation, use electromagnetic induction principle, utilization magnetic flux checker of gear ring tooth root, gear tip clearance in rotation process causes the variation of induction electromotive force, and then records vehicle wheel rotational speed.But these class methods change because of the amplitude of sensor output signal, can't test the vehicle wheel rotational speed under the low speed of a motor vehicle operating mode; And its when installing magnetic pole and gear ring remain a certain gap, be difficult to guarantee.
(2) patent publication No.: CN102211505A; Denomination of invention: tire rotational speed and near field noise measurement mechanism; Open day: on October 12nd, 2011; The applying date: on May 6th, 2011.This patent proposes a kind of method of testing of tire rotational speed, uses the tally function of optoelectronic switch, is equipped with the gear ring inductive disks and measures tire rotational speed.But the optoelectronic switch in the method is subject to the impact of external light source, and the result who causes rotating speed to measure is inaccurate.
(3) patent No.: CN202159070U; Denomination of invention: a kind of new automobile measurement mechanism; Open day: on March 7th, 2012; The applying date: on May 30th, 2011.This patent is put forward altogether a kind of method of testing of tire rotational speed, the rotor of wheel speed sensors is clamped in by the claw type chuck on the lateral surface of hub nut with vehicle wheel rotation, the wheel speed sensors shell connects with vehicle body, and the relative motion by rotor sensor and stator measures vehicle wheel rotational speed indirectly.But in the method, can't guarantee the pretightning force between claw type chuck and the hub nut, easily have an accident in the wheel driving process, and the size versatility of claw type chuck is poor, measurement mechanism can not be applicable to the installation of multiple wheel diameters.
Realistic problem for wheel speed detects the utility model discloses a kind of hall effect type automobile wheel speed pick-up unit with impact damper, has realized the fast detecting of wheel speed.In this device development and Design have the code-disc structure of non-equal angles radiation mounting hole, can be installed in quickly and easily on the wheel hub of vehicle, and be suitable for the vehicle of different nut quantity; The edge of code-disc is provided with equally distributed pulsed test signal hole, cooperates with Hall switch, has realized the direct measurement of wheel speed; Vertical buffer gear has eliminated that vertical vibration is on the impact of wheel speed test result in the vehicle operating process in the device, and cost is low, and is easy for installation, and measuring accuracy is high, has very strong versatility.
Summary of the invention
Technical problem to be solved in the utility model is to have overcome the problem that prior art exists, and a kind of hall effect type automobile wheel speed pick-up unit with impact damper is provided.
For solving the problems of the technologies described above, the utility model is to adopt following technical scheme to realize:
Described hall effect type automobile wheel speed pick-up unit with impact damper mainly is comprised of L shaped connecting link A, code-disc mechanism assembly B, the assembly C of wheel speed testing agency, impact damper D and top fixed mechanism assembly E.Described code-disc mechanism assembly (B) is comprised of code-disc coupling shaft (1) and code-disc (5), described code-disc (5) is connected with the lower end of L shaped connecting link (A) by code-disc coupling shaft (1), code-disc mechanism assembly (B) is fixedly mounted on the wheel hub of tested vehicle (I) by switching device assembly (III) and nut, described wheel speed testing agency's assembly (C) is comprised of Hall-type approach switch (14) and approach switch mount pad (15), described Hall-type approach switch (14) is threaded by the threaded rod lower end of approach switch mount pad (15) with L shaped connecting link (A), the pulse signal hole (c) of the alignment probe code-disc (5) of Hall-type approach switch (14), described impact damper (D) is contained in the threaded rod upper end of L shaped connecting link (A), and is fixedly mounted on the car body by top fixed mechanism assembly (E).
Described hall effect type automobile wheel speed pick-up unit bottom with impact damper is fixedly mounted on its code-disc mechanism assembly B on the wheel hub of tested vehicle I by switching device assembly III and nut, realizes the run-in synchronism of code-disc 5 and wheel; Strong magnet 13 among the described top fixed mechanism assembly E is adsorbed on the car body, realizes that the top of wheel speed detector is fixed.
Described switching device assembly III is comprised of the identical switching swivel nut a of rolling hitch structure, described switching swivel nut a is T shape structure, the large end of T shape structure is a hollow hexahedron structure with internal thread, be used for being fixedly connected with bolt on the wheel hub, the small end of T shape structure is one with externally threaded screw rod.This screw rod is fixedly connected with code-disc mechanism assembly (B) screw thread; The dimensions of described switching swivel nut (a) is decided according to the size of tested vehicle (I) boss bolt.
Transfer when installing will taking turns speed detector and automotive hub, according to 3 principles of determining a plane, three the original hold-down nuts above the wheel hub of dismantling, the bolt of the internal thread of the large end of T shape structure and three nuts of dismantling tightened successively (namely the large end of T shape structure of this moment serves as the effect of wheel hub hold-down nut, and its hollow degree of depth be greater than in the axial direction the length protruded of the snapping bolt of wanting), the screw rod of T shape structure small end passes in the wheel speed detector suitable installation groove b on the code-disc 5, and by three cover nuts and pads code-disc is fastened on the automotive hub, realize that the bottom of wheel speed detector is fixed.The dimensions fibrous root of described switching swivel nut a is decided according to the size of tested vehicle I boss bolt.
Described L shaped connecting link A is a L shaped tubular structure, its long end is for being staircase structure with two kinds of different-diameters vertically, diameter near L shaped connecting rod A short end is larger, diameter away from L shaped connecting rod A short end is less, arrives the fixed position so that the clamp nut of the assembly C of wheel speed testing agency penetrates connecting rod.Top and axle journal change location in long end are provided with binding thread, screw top is connected with the internal thread of lower spring cup 16, so that L shaped connecting link A and impact damper D are connected to an integral body, the threaded engagement of axle journal change location is fixed the assembly C of wheel speed testing agency with the clamp nut of the assembly C of wheel speed testing agency; Short end is the link of L shaped connecting link A and code-disc mechanism assembly B, and the circumferencial direction in its hollow-core construction is provided with the positioning round orifice that three row are divided equally, and angle between any two is 120 °, the circular hole of opening evenly distributes, the quantity of opening as required every row positioning round orifice is 3～8, code-disc coupling shaft (1) in the described code-disc mechanism assembly (B) is provided with three locating slots corresponding with positioning round orifice on L shaped connecting link (A) short end, code-disc coupling shaft (1) and L shaped connecting link (A) short end suit, and pass locating slot tight joint on described positioning round orifice and the code-disc coupling shaft (1) by fastening bolt; The location and installation hole of circular hole for realizing connecting with code-disc coupling shaft 1 that described three row are divided equally, location and installation hole and bolt head that fastening bolt passes L shaped connecting link A small end hold out against in the locating slot of code-disc coupling shaft 1, realize the tight joint of L shaped connecting link A and code-disc coupling shaft 1, namely three row are in twos 120 ° fastening bolt and can guarantee that L shaped connecting link A connects with the firm of code-disc coupling shaft 1; The long end of L shaped connecting link A carries installation end and is provided with external thread for the top of wheel speed detector, is used for installing the wheel speed assembly C of testing agency and connects impact damper D.
Described code-disc mechanism assembly B mainly is comprised of code-disc coupling shaft 1, front bearing end cap 2, forward end seal circle 3, bearing 4, code-disc 5, back-end sealing circle 6 and rear bearing end cap 7.Code-disc coupling shaft (1) in the described code-disc mechanism assembly (B) is installed in the manhole at code-disc (5) center by front and back bearings end cap (2,7) and bearing (4), code-disc coupling shaft (1) is by locating slot axle head, the thrust shaft shoulder and be connected axle head and form, locating slot section on the described locating slot axle head is the rectangle elongated slot, described bearing (4) outer ring is connected with the central circular through hole interference fit of code-disc (5), round end as the wheel speed detector rotates with code-disc (5); Bearing (4) inner ring is connected with code-disc coupling shaft (1) interference fit, as the stiff end of wheel speed detector.
Code-disc 5 among the described code-disc mechanism assembly B passes through switching device assembly III indirect joint to automotive hub, with the automotive hub synchronous rotary; Code-disc coupling shaft 1 is installed with the shorter end coaxial line of L shaped connecting link A among the described code-disc mechanism assembly B, and an end of the fluting of code-disc coupling shaft 1 is sleeved in the L shaped connecting link A hollow tubular, and realizes code-disc coupling shaft 1 and L shaped connecting link tight joint by the uniform fastening bolt of three row.
Described code-disc coupling shaft 1 is comprised of long locating slot axle head, the thrust shaft shoulder and shorter connection axle head, the elongated slot that it is rectangle that the described location axle head of long fluting has three sections in a circumferential direction, and three elongated slots angle between any two is 120 °, this structure matches with the shorter end of L shaped connecting link A, and the fastening bolt that is in twos 120 ° by three row realizes that L shaped connecting link A connects with the firm of code-disc coupling shaft 1; The described thrust shaft shoulder can just withstand on the inner ring of bearing 4 the thrust shaft shoulder in the diameter of radially circumference and the equal diameters of bearing 4 inner ring outer rims, realizes bearing 4 inner rings location in the axial direction; Diameter and bearing 4 interference fit of described shorter connection axle head realize being connected of bearing 4 and code-disc coupling shaft 1.
Described front and back bearings end cap (2,7) is T shape through-hole structure, the centre is provided with the trapezoidal annular groove that front and back sealing rings (3,6) is installed, be evenly equipped with threaded hole on the large end face of front and back bearings end cap (2,7), be fixedly connected with code-disc (5) by bolt; The small end face of front and back bearings end cap (2,7) withstands on the side, outer ring, front and back of bearing (4), and to bearing (4) outer ring axial location, the large end face of rear bearing end cap (7) is enclosed construction.
Described front bearing end cap 2 is the hat through-hole structure, and inside has trapezoidal annular groove, cooperates installation with code-disc coupling shaft 1 coaxial line.The head of front bearing end cap 2 is evenly equipped with six threaded holes, realizes and being fixedly connected with of code-disc 5 by bolt; The tail end face of front bearing end cap 2 withstands on the cycle surface of bearing 4, realizes the axial location of bearing 4 outer rings.
Described forward end seal circle 3 is elastomeric material and is extruded in the trapezoidal annular groove that is installed in front bearing end cap 2, is sleeved on simultaneously on the axle head of code-disc coupling shaft 1, with code-disc coupling shaft 1 coaxial line, realizes the effect of bearing enclosure.
The axis hole interference fit of described bearing 4 outer rings and code-disc 5 makes bearing 4 and code-disc 5 close-coupled, and the inner ring of bearing 4 and code-disc coupling shaft 1 interference fit make bearing 4 and code-disc coupling shaft 1 close-coupled; This mounting means is so that the outer ring of bearing 4 and code-disc are in aggregates, as the rotating part of wheel speed detector, with vehicle wheel rotation simultaneously; The inner ring of bearing 4 and code-disc coupling shaft 1 are in aggregates, as the fixed part of wheel speed detector.
Described back-end sealing circle 6 is elastomeric material and is extruded in the trapezoidal annular groove that is installed in rear bearing end cap 7, is sleeved on simultaneously on the code-disc coupling shaft 1, with code-disc coupling shaft 1 coaxial line, realizes the effect of bearing enclosure.
Described rear bearing end cap 7 is a hat-shaped structure, and inside has trapezoidal annular groove, cooperates installation with code-disc coupling shaft 1 coaxial line.Its head is enclosed construction, is evenly equipped with six threaded holes on the periphery, realizes and being fixedly connected with of code-disc 5 by bolt; The tail end face of rear bearing end cap 7 withstands on the other end of bearing 4 outer rings, realizes the axial location of bearing.
Be disposed radially the through hole of two ring recess shapes on the described code-disc (5), inner ring is location and installation hole (b), the outer ring is pulse signal hole (c), the central circular through hole place of described code-disc (5) leading flank arranges an annular boss, raised head face is provided with uniform threaded hole, threaded hole on the large end face of this threaded hole and front bearing end cap (2) is corresponding, and is connected with front bearing end cap (2) by bolt; Code-disc (5) trailing flank and boss corresponding section also are provided with threaded hole, and are connected with rear bearing end cap (7) by bolt.
Be provided with a manhole (axis hole) centered by the described code-disc 5, and radially be provided with the steel construction of the through hole (being location and installation slotted eye b and pulsed test signal hole c) of two ring recess shapes.Described code-disc 5 central shaft hole places vertically, near the one side of front bearing end cap 2 annular boss is set has six uniform threaded holes, and are connected with front bearing end cap 2 by bolt on the circumferentia of boss; Simultaneously, the another side that code-disc 5 boss are relative has six uniform threaded holes, and is connected with rear front bearing end cap 7 by bolt.
Location and installation hole (b) on the described code-disc (5) radially is uneven distribution by code-disc (5), by No. 1 location and installation hole (8), No. 2 location and installation holes (9), No. 3 location and installation holes (10), No. 4 location and installation holes (11), No. 5 location and installation holes (12) and No. 6 location and installation holes (13) form, in twos distribution at an angle of described location and installation hole (b): No. 1 location and installation hole (8) is 60 ° with No. 2 location and installation holes (9), No. 2 location and installation holes (9) are 30 ° with No. 3 location and installation holes (10), No. 3 location and installation holes (10) are 90 ° with No. 4 location and installation holes (11), No. 4 location and installation holes (11) are 36 ° with No. 5 location and installation holes (12), No. 5 location and installation holes (12) are 72 ° with No. 6 location and installation holes (13), and No. 6 location and installation holes (13) are 72 ° with No. 1 location and installation hole (8); The end face in described location and installation hole (b) is circular-arc, and each location and installation hole (b) structure and measure-alike, the radius at the end face center of arc of mounting-positioning holes (b) to code-disc (5) center is at the radius R=50mm of proximal part, a deep end radius R=150mm, and the spacing that satisfies wheel hub nuts distributes.
Described code-disc 5 location and installation hole b, by radially to extraradial 6 non-equal angular No. 1 location and installation holes 8, No. 2 location and installation holes 9, No. 3 location and installation holes 10, No. 4 location and installation holes 11, No. 5 location and installation holes 12 and No. 6 location and installation holes 13 form.Because dissimilar automobile, the quantity of its lug nut is not quite similar, the common types such as 4,5,6,8,10 or 12 are arranged, and the design of this structure can be satisfied the requirement of code-disc 5 and dissimilar automotive hub location and installation, and handled easily, versatility are good.According to above requirement, described code-disc 5 location and installation hole b are when design, No. 1 location and installation hole 8 and No. 2 location and installation holes 9 are 60 °, No. 2 location and installation holes 9 and No. 3 location and installation holes 10 are 30 °, No. 3 location and installation holes 10 and No. 4 location and installation holes 11 are 90 °, No. 4 location and installation holes 11 and No. 5 location and installation holes 12 are 36 °, and No. 5 location and installation holes 12 and No. 6 location and installation holes 13 are 72 °, and No. 6 location and installation holes 13 and No. 1 location and installation hole 8 are 72 °; Simultaneously, described location and installation hole b is six measure-alike groove shape through holes, the radius at two terminal circle arc distance code-disc 5 centers of mounting-positioning holes b, and in the radius R of proximal part=50, deep end radius R=150, the spacing that satisfies wheel hub nuts distributes.Determine the principle on a plane according to three points, when code-disc 5 and wheel hub are connected and fixed, have at least 3 location and installation holes to be fixedly connected with wheel hub, to guarantee the stability of code-disc in motion process.When the wheel hub hold-down nut is 4,8 or 12 (i.e. 4 multiple), can use No. 1 location and installation hole 8 being in twos 90 °, No. 3 location and installation holes 10 and No. 4 location and installation holes 11 to realize being fixedly connected with of code-discs 5 and wheel hub; When the wheel hub hold-down nut is 5 or 10 (i.e. 5 multiple), can use No. 1 location and installation hole 8 being in twos 72 °, No. 5 location and installation holes 12 and No. 6 location and installation holes 13 to realize being fixedly connected with of code-discs 5 and wheel hub; When the wheel hub hold-down nut is 6 (i.e. 6 multiple), can use No. 1 location and installation hole 8, No. 2 location and installation holes 9 and No. 4 location and installation holes 11 to realize be fixedly connected with (No. 1 location and installation hole 8 and No. 2 location and installation holes 9 are 60 °, and No. 2 location and installation holes 9 and No. 4 location and installation holes 11 are 120 °) of code-discs 5 and wheel hub.
Pulse signal hole (c) on the described code-disc (5) radially is evenly distributed by code-disc (5), when code-disc (5) during with vehicle wheel rotation, the Hall-type approach switch (14) that is installed on the approach switch mount pad (15) just produces pulse signal, the pulse signal that produces according to Hall-type approach switch (14) calculates the rotating speed of code-disc, be the rotating speed of wheel, according to the radius of tested vehicle tire and then try to achieve the linear velocity of wheel;
Described approach switch mount pad (15) is a L shaped bent plate, and the long end of bent plate and short end arrange respectively a threaded hole, and the long end threaded hole is connected with the screw flight of L shaped connecting link (A), and fixes by two nuts up and down; Described Hall-type approach switch (14) is threaded with the threaded hole of bent plate short end, and fixes by nut and the locking plate of both sides.
Groove shape through hole on described code-disc 5 outer rims (being pulsed test signal hole c) is evenly distributed, and the quantity of pulsed test signal hole c is set to 24～48 according to the requirement of measuring accuracy, is the primary structure part that code-disc produces pulse.The pulse signal hole c of the alignment probe code-disc 5 of Hall-type approach switch 14, when code-disc 5 during with vehicle wheel rotation, Hall-type approach switch 14 just produces pulse signal, the pulse signal that produces according to Hall-type approach switch 14 can calculate the rotating speed (being the rotating speed of wheel) of code-disc, according to the radius of tested vehicle tire and then can try to achieve the linear velocity of wheel.
The described wheel speed assembly C of testing agency mainly is comprised of Hall-type approach switch 14 and approach switch mount pad 15.Described approach switch mount pad 15 is L shaped, and two supporting surfaces of L shaped mount pad all have mounting hole, and the long support face of mount pad is by mounting hole, and lower nut is packed on the screw rod of L shaped connecting link A in the employing; Be processed with the threaded hole that matches with the Hall-type approach switch on the short supporting surface of mount pad, described Hall-type approach switch 14 is threaded connection on the short supporting surface that is packed in mount pad, and by nut and locking plate it is pinned.
Described impact damper (D) is comprised of two cover 1, No. 2 spring contiguous block (16,18) and buffer spring (17), described 1, No. 2 spring contiguous block (16,18) is circular ring structure, its outside surface is provided with the helicla flute that is connected with buffer spring (17) two ends respectively, 1, the inside of No. 2 spring contiguous blocks (16,18) is threaded hole, is threaded with the threaded rod of the oscillating bearing (23) of the threaded rod of L shaped connecting link (A) and top fixed mechanism assembly (E) respectively.
Described impact damper D mainly is comprised of lower spring cup 16, buffer spring 17 and upper spring seat 18.Described lower spring cup 16 is threaded connection with L shaped connecting link A; Described upper spring seat 18 is fixed together by screw thread with car body fixed mechanism assembly E; The two ends of described buffer spring 17 are packed in the seam of lower spring cup 16 and upper spring seat 18; this structure reduced vehicle in operational process because of the vertical vibration impact to the wheel speed detector; play the effect of protection wheel speed detector, and improved accuracy of detection.
Described lower spring cup 16 is " ten " word structure at front elevation, has fixing structure on disc structure one side end face of mid diameter larger 3, in order to be fixedly mounted with buffer spring 17; Long end passes buffer spring 17 vertically until the guide pole effect of buffer spring 17 is played in the position, middle and lower part of upper spring seat 18 simultaneously; A shorter end has internal thread, is fastenedly connected with the external thread on L shaped connecting link A top.
Described upper spring seat 18 is " ⊥ " shape structure, processes internal thread on its top, and is fastenedly connected with the external thread of top fixed mechanism assembly E and becomes one; Upper spring seat 18 provides the effect of lower spring cup 16 than the long end guide pipe simultaneously.
Described top fixed mechanism assembly E mainly is comprised of strong magnet backplate 19, strong magnet 20, connection pivot pin 21, movable bearing support 22 and oscillating bearing 23.Have the rectangular slot that strong magnet (20) is installed on described movable bearing support (22) outer face, strong magnet (20) is fixed by bolts in the movable bearing support (22) by strong magnet backplate (19), strong magnet (20) is adsorbed on the car body by strong magnet backplate (19), the other end of movable bearing support (22) is hinged with oscillating bearing (23) by connecting pivot pin (21), described oscillating bearing (23) swings according to the difference of different tilting of car body angles, so that strong magnet backplate (19) reliably contacts with car body.Strong magnet 20 among the described fixed mechanism assembly E is adsorbed on the car body, realizes that the top of wheel speed detector is fixed.
Described strong magnet backplate 19 is with the channel-section steel structure, arranges respectively on the both ends of the surface by two threaded holes, is bolted on the movable bearing support 22, and protection strong magnet 20 prevents coming off of the strong magnet 20 that causes because of the vehicle high vibration;
Described movable bearing support 22 is steel construction, opens by rectangular slot on the rectangular parallelepiped part outer face of movable bearing support 22, is used for installing strong magnet 20, and the other end is hinged with oscillating bearing 23 by connecting pivot pin 21.Described oscillating bearing 23 can swing according to the difference of different tilting of car body angles, so that strong magnet backplate 19 has large as far as possible contact area with car body, realizes being fastenedly connected of top fixed mechanism assembly E and car body.
Compared with prior art the beneficial effects of the utility model are:
1. the hall effect type automobile wheel speed pick-up unit with impact damper described in the utility model has been developed a kind of highly versatile, reliable code disc device has been installed, relative angle between the location and installation hole on the code-disc and the radiation length of code-disc mounting hole have taken into full account present all types of automobile different kinds of tyre nut quantity and distribution characteristics, calculate through science, can be installed on easily on the wheel hub of all kinds of different automobile types, versatility is good.
2. the hall effect type automobile wheel speed pick-up unit with impact damper described in the utility model, designed a kind of with three code-disc coupling shafts that are in twos 120 ° and equally distributed locating slot and be in twos the L shaped connecting link of 120 ° and equally distributed positioning round orifice with three row, both pilot holes and locating slot connect together by 120 ° the fastening bolt of being in twos of three row circle distribution, realize firm connection the (namely connecting with the firm of proximity Hall switch) of code-disc and L shaped connecting link, simultaneously, the code-disc coupling shaft can be axially flexible in L shaped connecting link, to adapt to the variation of distance between wheel hub center, vertical outer face and the car body vertical outer face, highly versatile.
3. the hall effect type automobile wheel speed pick-up unit with impact damper described in the utility model has designed a kind of snubber assembly; reduced vehicle in operational process because of the vertical vibration impact to the wheel speed detector; play the effect of protection wheel speed detector, and improved accuracy of detection.
4. the hall effect type automobile wheel speed pick-up unit with impact damper described in the utility model has designed top fixed mechanism assembly, and the suction by strong magnet makes the top of wheel speed detector firmly connect with car body.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described:
Fig. 1 is that the hall effect type automobile wheel speed pick-up unit with impact damper described in the utility model is installed in the axonometric projection graph on the wheel hub;
Fig. 2 is the axonometric projection graph with the installation of the switching device assembly in the hall effect type automobile wheel speed pick-up unit of impact damper described in the utility model;
Fig. 3 is the axonometric projection graph of switching swivel nut in the switching device assembly described in the utility model;
Fig. 4 is the axonometric projection graph of the hall effect type automobile wheel speed pick-up unit with impact damper described in the utility model;
Fig. 5 is the axonometric projection graph with the L shaped connecting link in the hall effect type automobile wheel speed pick-up unit of impact damper described in the utility model;
Fig. 6 (a) is that the M-M of L shaped connecting link described in the utility model is to cut-open view;
Fig. 6 (b) is the distribution plan of the shorter end positioning round orifice of L shaped connecting link described in the utility model;
Fig. 7 is the axonometric projection graph with the code-disc mechanism assembly in the hall effect type automobile wheel speed pick-up unit of impact damper described in the utility model;
Fig. 8 is the explosive view with the code-disc mechanism assembly in the hall effect type automobile wheel speed pick-up unit of impact damper described in the utility model;
Fig. 9 (a) is the forward view of code-disc mechanism assembly described in the utility model;
Fig. 9 (b) is that the N-N of code-disc mechanism assembly described in the utility model is to view;
Figure 10 is the partial view that Y goes out among Fig. 9 (b);
Figure 11 is the axonometric projection graph with the code-disc coupling shaft in the hall effect type automobile wheel speed pick-up unit of impact damper described in the utility model;
Figure 12 (a) is that the K-K of code-disc coupling shaft described in the utility model is to cut-open view;
Figure 12 (b) is the distribution plan of the locating slot of code-disc coupling shaft described in the utility model;
Figure 13 (a) is the axonometric projection graph with the front bearing end cap in the hall effect type automobile wheel speed pick-up unit of impact damper described in the utility model;
Figure 13 (b) is that the H-H with the front bearing end cap in the hall effect type automobile wheel speed pick-up unit of impact damper described in the utility model is to view;
Figure 14 (a) is the axonometric projection graph with the rear bearing end cap in the hall effect type automobile wheel speed pick-up unit of impact damper described in the utility model;
Figure 14 (b) is that the L-L with the rear bearing end cap in the hall effect type automobile wheel speed pick-up unit of impact damper described in the utility model is to view;
Figure 15 is the axonometric projection graph with the code-disc in the hall effect type automobile wheel speed pick-up unit of impact damper described in the utility model;
Figure 16 is the distribution plan in the location and installation hole with the code-disc in the hall effect type automobile wheel speed pick-up unit of impact damper described in the utility model;
Figure 17 is the axonometric projection graph with the wheel speed testing agency assembly in the hall effect type automobile wheel speed pick-up unit of impact damper described in the utility model;
Figure 18 is the axonometric projection graph with the buffer spring in the hall effect type automobile wheel speed pick-up unit of impact damper described in the utility model;
Figure 19 is the explosive view of the impact damper of the hall effect type automobile wheel speed pick-up unit with impact damper described in the utility model;
Figure 20 be described in the utility model with the impact damper in the hall effect type automobile wheel speed pick-up unit of impact damper along J-J to cut-open view;
Figure 21 (a) is the axonometric projection graph with the lower springs seat in the hall effect type automobile wheel speed pick-up unit of impact damper described in the utility model;
Figure 21 (b) is described in the utility model with the lower springs seat cut-open view vertically in the hall effect type automobile wheel speed pick-up unit of impact damper;
Figure 22 (a) is the axonometric projection graph with the upper springs seat in the hall effect type automobile wheel speed pick-up unit of impact damper described in the utility model;
Figure 22 (b) is described in the utility model with the upper springs seat cut-open view vertically in the hall effect type automobile wheel speed pick-up unit of impact damper;
Figure 23 is the axonometric projection graph with the car body fixed mechanism assembly in the hall effect type automobile wheel speed pick-up unit of impact damper described in the utility model;
Figure 24 is the explosive view with the car body fixed mechanism assembly in the hall effect type automobile wheel speed pick-up unit of impact damper described in the utility model;
Among the figure: I. tested vehicle, II. is with the hall effect type automobile wheel speed pick-up unit of impact damper, III. switching device assembly;
A.L shape connecting link, B. code-disc mechanism assembly, C. wheel speed testing agency assembly, D. impact damper, E. top fixed mechanism assembly;
A. the swivel nut of transferring, b. location and installation hole, c. pulse signal hole;
1. code-disc coupling shaft, 2. front bearing end cap, 3. forward end seal circle, 4 bearings, 5. code-disc, 6. back-end sealing circle, 7. rear bearing end cap, No. 8.1 location and installation holes, No. 9.2 location and installation holes, 10.3 number location and installation hole, 11.4 number location and installation hole, No. 12.5 location and installation holes, No. 13.6 location and installation holes, 14. Hall-type approach switch, 15 approach switch mount pads, 16. lower spring cups, 17. buffer springs, 18. upper spring seat, 19. the strong magnet backplate, 20. strong magnets, 21. connect pivot pin, 22. movable bearing support, 23. oscillating bearings.
Embodiment
Below in conjunction with accompanying drawing the utility model is explained in detail:
Consult Fig. 1-4, described hall effect type automobile wheel speed pick-up unit with impact damper mainly is comprised of L shaped connecting link A, code-disc mechanism assembly B, the assembly C of wheel speed testing agency, impact damper D and top fixed mechanism assembly E.Described hall effect type automobile wheel speed pick-up unit bottom with impact damper is fixedly mounted on its code-disc mechanism assembly B on the wheel hub of tested vehicle I by switching device assembly III and nut, realizes the run-in synchronism of code-disc 5 and wheel; Strong magnet 13 among the described top fixed mechanism assembly E is adsorbed on the car body, realizes that the top of wheel speed detector is fixed.
Consult Fig. 1-3, described switching device assembly III is comprised of the identical switching swivel nut a of rolling hitch structure, described switching swivel nut a is hat-shaped structure, and the head of hat-shaped structure is a hollow hexahedron structure with internal thread, and the afterbody of hat-shaped structure is one with externally threaded screw rod.Transfer when installing will taking turns speed detector and automotive hub, according to 3 principles of determining a plane, three the original hold-down nuts above the wheel hub of dismantling, the bolt of the internal thread of hat-shaped structure head and three nuts of dismantling tightened successively (namely the hat-shaped structure head of this moment serves as the effect of wheel hub hold-down nut, and its hollow degree of depth be greater than in the axial direction the length protruded of the snapping bolt of wanting), the afterbody screw rod of hat-shaped structure passes the installation axle hole b on the code-disc 5 in the wheel speed detector, and by three cover nuts and pads code-disc is fastened on the automotive hub, realize that the bottom of wheel speed detector is fixed.The dimensions fibrous root of described switching swivel nut a is decided according to the size of tested vehicle I boss bolt.
Consult Fig. 5-6 (b), described L shaped connecting link A is a L shaped tubular structure, its long end is for being staircase structure with two kinds of different-diameters vertically, diameter near L shaped connecting rod A short end is larger, diameter away from L shaped connecting rod A short end is less, arrives the fixed position so that the clamp nut of the assembly C of wheel speed testing agency penetrates connecting rod.Top and axle journal change location in long end are provided with binding thread, screw top is connected with the internal thread of lower spring cup 16, so that L shaped connecting link A and impact damper D are connected to an integral body, the threaded engagement of axle journal change location is fixed the assembly C of wheel speed testing agency with the clamp nut of the assembly C of wheel speed testing agency; Short end is the link of L shaped connecting link A and code-disc mechanism assembly B, and the circumferencial direction in its hollow-core construction is provided with the positioning round orifice that three row are divided equally, and angle between any two is 120 °, the circular hole of opening evenly distributes, the quantity of the circular hole of opening is 3～8 as required, the location and installation hole of circular hole for realizing connecting with code-disc coupling shaft 1 that described three row are divided equally, location and installation hole and bolt head that fastening bolt passes L shaped connecting link A small end hold out against in the locating slot of code-disc coupling shaft 1, realize the tight joint of L shaped connecting link A and code-disc coupling shaft 1, namely three row are in twos 120 ° fastening bolt and can guarantee that L shaped connecting link A connects with the firm of code-disc coupling shaft 1; The long end of L shaped connecting link A is carried installation end and is provided with external thread for the top of wheel speed detector, is used for installing the wheel speed assembly C of testing agency and connects impact damper D.
Consult Fig. 7-10, described code-disc mechanism assembly B mainly is comprised of code-disc coupling shaft 1, front bearing end cap 2, forward end seal circle 3, bearing 4, code-disc 5, back-end sealing circle 6 and rear bearing end cap 7.Code-disc 5 among the described code-disc mechanism assembly B is connected on the automotive hub by switching device assembly III, with the automotive hub synchronous rotary; Code-disc coupling shaft 1 is installed with L shaped connecting link A short end coaxial line among the described code-disc mechanism assembly B, and an end of the fluting of code-disc coupling shaft 1 is sleeved in the L shaped connecting link A hollow tubular, and realizes code-disc coupling shaft 1 and L shaped connecting link tight joint by the uniform fastening bolt of three row.
Consult Fig. 8-10, described forward end seal circle 3 is elastomeric material and is extruded in the trapezoidal annular groove that is installed in front bearing end cap 2, is sleeved on simultaneously on the axle head of code-disc coupling shaft 1, with code-disc coupling shaft 1 coaxial line, realizes the effect of bearing enclosure.The axis hole interference fit of described bearing 4 outer rings and code-disc 5 makes bearing 4 and code-disc 5 close-coupled, and the inner ring of bearing 4 and code-disc coupling shaft 1 interference fit make bearing 4 and code-disc coupling shaft 1 close-coupled; This mounting means is so that the outer ring of bearing 4 and code-disc are in aggregates, as the rotating part of wheel speed detector, with vehicle wheel rotation simultaneously; The inner ring of bearing 4 and code-disc coupling shaft 1 are in aggregates, as the fixed part of wheel speed detector.Described back-end sealing circle 6 is elastomeric material and is extruded in the trapezoidal annular groove that is installed in rear bearing end cap 7, is sleeved on simultaneously on the code-disc coupling shaft 1, with code-disc coupling shaft 1 coaxial line, realizes the effect of bearing enclosure.
Consult Figure 11-12 (b), described code-disc coupling shaft 1 is comprised of long locating slot axle head, the thrust shaft shoulder and shorter connection axle head, the elongated slot that it is rectangle that the described location axle head of long fluting has three sections in a circumferential direction, and three elongated slots angle between any two is 120 °, this structure matches with L shaped connecting link A short end, and the fastening bolt that is in twos 120 ° by three row realizes that L shaped connecting link A connects with the firm of code-disc coupling shaft 1; The described thrust shaft shoulder can just withstand on the inner ring of bearing 4 the thrust shaft shoulder in the diameter of radially circumference and the equal diameters of bearing 4 inner ring outer rims, realizes bearing 4 inner rings location in the axial direction; Diameter and bearing 4 interference fit of described shorter connection axle head realize being connected of bearing 4 and code-disc coupling shaft 1.
Consult Figure 13 (a), Figure 13 (b), described front bearing end cap 2 is the hat through-hole structure, and inside has trapezoidal annular groove, cooperates installation with code-disc coupling shaft 1 coaxial line.The head of front bearing end cap 2 is evenly equipped with six threaded holes, realizes and being fixedly connected with of code-disc 5 by bolt; The tail end face of front bearing end cap 2 withstands on the cycle surface of bearing 4, realizes the axial location of bearing 4 outer rings.
Consult Figure 14 (a), Figure 14 (b), described rear bearing end cap 7 is a hat-shaped structure, and inside has trapezoidal annular groove, cooperates installation with code-disc coupling shaft 1 coaxial line.Its head is enclosed construction, is evenly equipped with six threaded holes on the periphery, realizes and being fixedly connected with of code-disc 5 by bolt; The tail end face of rear bearing end cap 7 withstands on the other end of bearing 4 outer rings, realizes the axial location of bearing.
Consult Figure 15, be provided with a manhole (axis hole) centered by the described code-disc 5, and radially be provided with the steel construction of the through hole (being location and installation slotted eye b and pulsed test signal hole c) of two ring recess shapes.Described code-disc 5 central shaft hole places vertically, near the one side of front bearing end cap 2 annular boss is set has six uniform threaded holes, and are connected with front bearing end cap 2 by bolt on the circumferentia of boss; Simultaneously, the another side that code-disc 5 boss are relative has six uniform threaded holes, and is connected with rear front bearing end cap 7 by bolt.
Consult Figure 16, described code-disc 5 location and installation hole b are by radially forming to extraradial 6 non-equal angular location and installation holes 8,9,10,11,12,13.Because dissimilar automobile, the quantity of its lug nut is not quite similar, the common types such as 4,5,6,8,10 or 12 are arranged, and the design of this structure can be satisfied the requirement of code-disc 5 and dissimilar automotive hub location and installation, and handled easily, versatility are good.According to above requirement, described code-disc 5 location and installation hole b, by radially to extraradial 6 non-equal angular No. 1 location and installation holes 8, No. 2 location and installation holes 9, No. 3 location and installation holes 10, No. 4 location and installation holes 11, No. 5 location and installation holes 12 and No. 6 location and installation holes 13 form.Because dissimilar automobile, the quantity of its lug nut is not quite similar, the common types such as 4,5,6,8,10 or 12 are arranged, and the design of this structure can be satisfied the requirement of code-disc 5 and dissimilar automotive hub location and installation, and handled easily, versatility are good.According to above requirement, described code-disc 5 location and installation hole b are when design, No. 1 location and installation hole 8 and No. 2 location and installation holes 9 are 60 °, No. 2 location and installation holes 9 and No. 3 location and installation holes 10 are 30 °, No. 3 location and installation holes 10 and No. 4 location and installation holes 11 are 90 °, No. 4 location and installation holes 11 and No. 5 location and installation holes 12 are 36 °, and No. 5 location and installation holes 12 and No. 6 location and installation holes 13 are 72 °, and No. 6 location and installation holes 13 and No. 1 location and installation hole 8 are 72 °; Simultaneously, described location and installation hole b is six measure-alike groove shape through holes, and the radius at two terminal circle arc distance code-disc 5 centers of mounting-positioning holes b is in the radius R of proximal part=50, deep end radius R=150, the spacing that satisfies wheel hub nuts distributes.Determine the principle on a plane according to three points, when code-disc 5 and wheel hub are connected and fixed, have at least 3 location and installation holes to be fixedly connected with wheel hub, to guarantee the stability of code-disc in motion process.When the wheel hub hold-down nut is 4,8 or 12 (i.e. 4 multiple), can use No. 1 location and installation hole 8 being in twos 90 °, No. 3 location and installation holes 10 and No. 4 location and installation holes 11 to realize being fixedly connected with of code-discs 5 and wheel hub; When the wheel hub hold-down nut is 5 or 10 (i.e. 5 multiple), can use No. 1 location and installation hole 8 being in twos 72 °, No. 5 location and installation holes 12 and No. 6 location and installation holes 13 to realize being fixedly connected with of code-discs 5 and wheel hub; When the wheel hub hold-down nut is 6 (i.e. 6 multiple), can use No. 1 location and installation hole 8, No. 2 location and installation holes 9 and No. 4 location and installation holes 11 to realize be fixedly connected with (No. 1 location and installation hole 8 and No. 2 location and installation holes 9 are 60 °, and No. 2 location and installation holes 9 and No. 4 location and installation holes 11 are 120 °) of code-discs 5 and wheel hub.
Groove shape through hole on described code-disc 5 outer rims (being pulsed test signal hole c) is evenly distributed, and the quantity of pulsed test signal hole c is set to 48～72 according to the requirement of measuring accuracy, is the primary structure part that code-disc produces pulse.The pulse signal hole c of the alignment probe code-disc 5 of Hall-type approach switch 14, when code-disc 5 during with vehicle wheel rotation, Hall-type approach switch 14 just produces pulse signal, the pulse signal that produces according to Hall-type approach switch 14 can calculate the rotating speed (being the rotating speed of wheel) of code-disc, according to the radius of tested vehicle tire and then can try to achieve the linear velocity of wheel.
Consult Figure 17, the described wheel speed assembly C of testing agency mainly is comprised of Hall-type approach switch 14 and approach switch mount pad 15.Described approach switch mount pad 15 is L shaped, and two supporting surfaces of L shaped mount pad all have mounting hole, and the long support face of mount pad is by mounting hole, and lower nut is packed on the screw rod of connecting link A in the employing; Be processed with the threaded hole that matches with the Hall-type approach switch on the short supporting surface of mount pad, described Hall-type approach switch 14 is threaded connection on the short supporting surface that is packed in mount pad, and by nut and locking plate it is pinned.
Consult Figure 18-22 (b), described impact damper D mainly is comprised of lower spring cup 16, buffer spring 17 and upper spring seat 18.Described lower spring cup 16 is threaded connection with L shaped connecting link A; Described upper spring seat 18 is fixed together by screw thread with car body fixed mechanism assembly E; The two ends of described buffer spring 17 are packed in the seam of lower spring cup 16 and upper spring seat 18; this structure reduced vehicle in operational process because of the vertical vibration impact to the wheel speed detector; play the effect of protection wheel speed detector, and improved accuracy of detection.
Described lower spring cup 16 is " ten " word structure at front elevation, and mid diameter has seam on larger disk one side end face, is used for being fixedly mounted with buffer spring 17; Simultaneously long end passes buffer spring 17 vertically until the position, middle and lower part of upper spring seat 18, play buffer spring 17 the guide pole effect; A shorter end has internal thread, is fastenedly connected with the external thread on L shaped connecting link A top.Described upper spring seat 18 is " ⊥ " shape structure, has internal thread on its top, and is fastenedly connected with the external thread of top fixed mechanism assembly E and becomes one; Upper spring seat 18 provides the effect of lower spring cup 16 than the long end guide pipe simultaneously.
Consult Figure 23,24, described top fixed mechanism assembly E mainly is comprised of strong magnet backplate 19, strong magnet 20, connection pivot pin 21, movable bearing support 22 and oscillating bearing 23.Strong magnet 20 among the described fixed mechanism assembly E is adsorbed on the car body, realizes that the top of wheel speed detector is fixed.Described strong magnet backplate 19 is with the channel-section steel structure, arranges respectively on the both ends of the surface by two threaded holes, is bolted on the movable bearing support 22, and protection strong magnet 20 prevents coming off of the strong magnet 20 that causes because of the vehicle high vibration; Described movable bearing support 22 is steel construction, opens by rectangular slot on the rectangular parallelepiped part outer face of movable bearing support 22, is used for installing strong magnet 20, and the other end is hinged with oscillating bearing 23 by connecting pivot pin 21.Described oscillating bearing 23 can swing according to the difference of different tilting of car body angles, so that strong magnet backplate 19 has large as far as possible contact area with car body, realizes being fastenedly connected of top fixed mechanism assembly E and car body.
Claims (10)
1. hall effect type automobile wheel speed pick-up unit with impact damper, comprise L shaped connecting link (A), code-disc mechanism assembly (B), wheel speed testing agency assembly (C), impact damper (D) and top fixed mechanism assembly (E), it is characterized in that, described L shaped connecting link (A) is a L shaped tubular structure, its long end is for being staircase structure with two kinds of different-diameters vertically, diameter near L shaped connecting rod (A) short end is larger, diameter away from L shaped connecting rod (A) short end is less, described code-disc mechanism assembly (B) is comprised of code-disc coupling shaft (1) and code-disc (5), described code-disc (5) is connected with the lower end of L shaped connecting link (A) by code-disc coupling shaft (1), code-disc mechanism assembly (B) is fixedly mounted on the wheel hub of tested vehicle (I) by switching device assembly (III) and nut, described wheel speed testing agency's assembly (C) is comprised of Hall-type approach switch (14) and approach switch mount pad (15), described Hall-type approach switch (14) is threaded by the threaded rod lower end of approach switch mount pad (15) with L shaped connecting link (A), the pulse signal hole (c) of the alignment probe code-disc (5) of Hall-type approach switch (14), described impact damper (D) is contained in the threaded rod upper end of L shaped connecting link (A), and is fixedly mounted on the car body by top fixed mechanism assembly (E).
2. the hall effect type automobile wheel speed pick-up unit with impact damper according to claim 1, it is characterized in that, described switching device assembly (III) is comprised of the identical switching swivel nut (a) of rolling hitch structure, described switching swivel nut (a) is T shape structure, large end is a hollow hexahedron structure with internal thread, be used for being fixedly connected with bolt on the wheel hub, small end is one with externally threaded screw rod, and this screw rod is fixedly connected with code-disc mechanism assembly (B) screw thread; The dimensions of described switching swivel nut (a) is decided according to the size of tested vehicle (I) boss bolt.
3. the hall effect type automobile wheel speed pick-up unit with impact damper according to claim 1, it is characterized in that, short end in the described L shaped connecting link (A) is the link of L shaped connecting link (A) and code-disc mechanism assembly (B), its circumferencial direction is provided with the positioning round orifice that three row are divided equally, and the angle between the two row positioning round orifice is 120 °, every row positioning round orifice quantity is 3～8, code-disc coupling shaft (1) in the described code-disc mechanism assembly (B) is provided with three locating slots corresponding with positioning round orifice on L shaped connecting link (A) short end, code-disc coupling shaft (1) and L shaped connecting link (A) short end suit, and pass locating slot tight joint on described positioning round orifice and the code-disc coupling shaft (1) by fastening bolt; The long end of described L shaped connecting link (A) is for the carrying installation end and be provided with external thread, is used for wheel speed testing agency's assembly (C) being installed and being connected impact damper (D).
4. the hall effect type automobile wheel speed pick-up unit with impact damper according to claim 1, it is characterized in that, code-disc coupling shaft (1) in the described code-disc mechanism assembly (B) is by front and back bearings end cap (2,7) and bearing (4) be installed in the manhole at code-disc (5) center, code-disc coupling shaft (1) is by the locating slot axle head, the thrust shaft shoulder be connected axle head and form, locating slot section on the described locating slot axle head is the rectangle elongated slot, described bearing (4) outer ring is connected with the central circular through hole interference fit of code-disc (5), round end as the wheel speed detector rotates with code-disc (5); Bearing (4) inner ring is connected with code-disc coupling shaft (1) interference fit, as the stiff end of wheel speed detector.
5. the hall effect type automobile wheel speed pick-up unit with impact damper according to claim 4, it is characterized in that, described front and back bearings end cap (2,7) is T shape through-hole structure, the centre is provided with the trapezoidal annular groove that front and back sealing rings (3,6) is installed, be evenly equipped with threaded hole on the large end face of front and back bearings end cap (2,7), be fixedly connected with code-disc (5) by bolt; The small end face of front and back bearings end cap (2,7) withstands on the side, outer ring, front and back of bearing (4), and to bearing (4) outer ring axial location, the large end face of rear bearing end cap (7) is enclosed construction.
6. according to claim 1 to 4 each described hall effect type automobile wheel speed pick-up units with impact damper, it is characterized in that, be disposed radially the through hole of two ring recess shapes on the described code-disc (5), inner ring is location and installation hole (b), the outer ring is pulse signal hole (c), the central circular through hole place of described code-disc (5) leading flank arranges an annular boss, raised head face is provided with uniform threaded hole, threaded hole on the large end face of this threaded hole and front bearing end cap (2) is corresponding, and is connected with front bearing end cap (2) by bolt; Code-disc (5) trailing flank and boss corresponding section also are provided with threaded hole, and are connected with rear bearing end cap (7) by bolt.
7. the hall effect type automobile wheel speed pick-up unit with impact damper according to claim 6, it is characterized in that, location and installation hole (b) on the described code-disc (5) radially is uneven distribution by code-disc (5), by No. 1 location and installation hole (8), No. 2 location and installation holes (9), No. 3 location and installation holes (10), No. 4 location and installation holes (11), No. 5 location and installation holes (12) and No. 6 location and installation holes (13) form, in twos distribution at an angle of described location and installation hole (b): No. 1 location and installation hole (8) is 60 ° with No. 2 location and installation holes (9), No. 2 location and installation holes (9) are 30 ° with No. 3 location and installation holes (10), No. 3 location and installation holes (10) are 90 ° with No. 4 location and installation holes (11), No. 4 location and installation holes (11) are 36 ° with No. 5 location and installation holes (12), No. 5 location and installation holes (12) are 72 ° with No. 6 location and installation holes (13), and No. 6 location and installation holes (13) are 72 ° with No. 1 location and installation hole (8); The end face in described location and installation hole (b) is circular-arc, and each location and installation hole (b) structure and measure-alike, the radius at the end face center of arc of mounting-positioning holes (b) to code-disc (5) center is at the radius R=50mm of proximal part, a deep end radius R=150mm, and the spacing that satisfies wheel hub nuts distributes.
8. the hall effect type automobile wheel speed pick-up unit with impact damper according to claim 6, it is characterized in that, pulse signal hole (c) on the described code-disc (5) radially is evenly distributed by code-disc (5), when code-disc (5) during with vehicle wheel rotation, the Hall-type approach switch (14) that is installed on the approach switch mount pad (15) just produces pulse signal, the pulse signal that produces according to Hall-type approach switch (14) calculates the rotating speed of code-disc, be the rotating speed of wheel, according to the radius of tested vehicle tire and then try to achieve the linear velocity of wheel;
Described approach switch mount pad (15) is a L shaped bent plate, and the long end of bent plate and short end arrange respectively a threaded hole, and the long end threaded hole is connected with the screw flight of L shaped connecting link (A), and fixes by two nuts up and down; Described Hall-type approach switch (14) is threaded with the threaded hole of bent plate short end, and fixes by nut and the locking plate of both sides.
9. the hall effect type automobile wheel speed pick-up unit with impact damper according to claim 1, it is characterized in that, described impact damper (D) is by two covers 1, No. 2 spring contiguous blocks (16,18) and buffer spring (17) form, described 1, No. 2 spring contiguous blocks (16,18) be circular ring structure, its outside surface is provided with the helicla flute that is connected with buffer spring (17) two ends respectively, 1, No. 2 spring contiguous blocks (16,18) inside is threaded hole, is threaded with the threaded rod of the oscillating bearing (23) of the threaded rod of L shaped connecting link (A) and top fixed mechanism assembly (E) respectively.
10. the hall effect type automobile wheel speed pick-up unit with impact damper according to claim 1, it is characterized in that, described top fixed mechanism assembly (E) is by strong magnet backplate (19), strong magnet (20), connect pivot pin (21), movable bearing support (22) and oscillating bearing (23) form, have the rectangular slot that strong magnet (20) is installed on described movable bearing support (22) outer face, strong magnet (20) is fixed by bolts in the movable bearing support (22) by strong magnet backplate (19), strong magnet (20) is adsorbed on the car body by strong magnet backplate (19), the other end of movable bearing support (22) is hinged with oscillating bearing (23) by connecting pivot pin (21), described oscillating bearing (23) swings according to the difference of different tilting of car body angles, so that strong magnet backplate (19) reliably contacts with car body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220270624 CN202757949U (en) | 2012-06-10 | 2012-06-10 | Hall effect type automobile wheel speed detecting device with buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220270624 CN202757949U (en) | 2012-06-10 | 2012-06-10 | Hall effect type automobile wheel speed detecting device with buffer |
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| Publication Number | Publication Date |
|---|---|
| CN202757949U true CN202757949U (en) | 2013-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220270624 Withdrawn - After Issue CN202757949U (en) | 2012-06-10 | 2012-06-10 | Hall effect type automobile wheel speed detecting device with buffer |
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| Country | Link |
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| CN (1) | CN202757949U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721825A (en) * | 2012-06-10 | 2012-10-10 | 吉林大学 | Hall effect type automobile wheel speed detecting device with buffer |
| CN105181113A (en) * | 2015-08-19 | 2015-12-23 | 交通运输部科学研究院 | Portable vehicle-mounted site test device for road and tyre noise |
| CN109050579A (en) * | 2018-10-09 | 2018-12-21 | 常州瑞豪轨道交通科技有限公司 | A kind of axle counting system of rail traffic |
-
2012
- 2012-06-10 CN CN 201220270624 patent/CN202757949U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721825A (en) * | 2012-06-10 | 2012-10-10 | 吉林大学 | Hall effect type automobile wheel speed detecting device with buffer |
| CN102721825B (en) * | 2012-06-10 | 2014-01-01 | 吉林大学 | Hall effect type automobile wheel speed detecting device with buffer |
| CN105181113A (en) * | 2015-08-19 | 2015-12-23 | 交通运输部科学研究院 | Portable vehicle-mounted site test device for road and tyre noise |
| CN109050579A (en) * | 2018-10-09 | 2018-12-21 | 常州瑞豪轨道交通科技有限公司 | A kind of axle counting system of rail traffic |
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| C14 | Grant of patent or utility model | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20130227 Effective date of abandoning: 20140101 |
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| RGAV | Abandon patent right to avoid regrant |