Bearing speed compiler and bearing assemblies

Abstract

The application provides a bearing rotating speed compiler and a bearing assembly. The bearing rotating speed compiler is annular and is used for being mounted to a rotating ring of a bearing. The compiler comprises a connecting frame (10) and a compiling element. The connecting frame (10) comprises an insertion part (11) and a suspended part (12s). The insertion part (11) is cylindrical and extends along an axial direction (A) of the bearing. The insertion part (11) is used for being nested with the rotating ring of the bearing in an interference fit. The suspended part (12s) is connected with the insertion part (11). The compiling element is mounted to the suspended part (12s). The suspended part (12s) forms a cavity (C) which surrounds along a circumferential direction of the bearing. The bearing rotating speed compiler according to the application has a simple structure and is not easy to be deformed or to fall off from the bearing.

Description

Technical Field

[0001] The present invention relates to the field of bearings, and in particular to a bearing speed compiler for measuring the speed of a bearing, and a bearing assembly comprising the compiler. Background Art

[0002] For example, the rotational speed of a wheel hub bearing of a vehicle usually needs to be measured to reflect the rotational speed of the wheel and further provide a basis for controlling the slip rate of, for example, automobile braking. Figure 1 and Figure 2 A possible bearing speed encoder for measuring the speed of a wheel hub bearing is shown, wherein Figure 1 The figure shows the state where the compiler is mounted on the bearing. Figure 2 The figure shows the initial position of the compiler during the installation process with the bearing (at this time, the compiler is not fully installed in the axial direction A of the bearing).

[0003] for Figure 1 In the wheel hub bearing shown, the inner ring B of the bearing is the rotating ring. Inner ring B is connected to the wheel hub H in a non-rotatable manner. The translator is also connected to the inner ring B in a non-rotatable manner, that is, the translator can rotate with the inner ring B. A sensor (not shown) fixed to the vehicle frame is provided near the translator (for example, on its axially opposite side). The sensor can detect the rotational motion of the translator and thus measure the rotational speed of the wheel hub bearing.

[0004] The bearing speed compiler comprises a connecting frame 10, a mounting platform 20 and a compiler element (not shown).

[0005] like Figure 1 and Figure 2 As shown, the connecting frame 10 is annular and includes an insert portion 11 and an overhang portion 12. The insert portion 11 is cylindrical and extends along the axial direction A of the inner ring B, while the overhang portion 12 is annular and extends along the radial direction R of the inner ring B. In other words, the entire connecting frame 10 is equivalent to a cylindrical component with one end bent 90° radially inward. The bent portion forms the overhang portion 12, and the unbent portion forms the insert portion 11.

[0006] The end portion of the insertion portion 11 away from the overhang portion 12 is used to be inserted between the inner ring and the outer ring of the bearing and assembled with the inner ring B in an interference fit.

[0007] The overhang portion 12 is used to connect to the annular mounting platform 20 . The compilation component is mounted on the mounting platform 20 .

[0008] Since the inserting portion 11 is sleeved on the outer periphery of the inner ring B with interference fit, the connecting frame 10 will be slightly deformed. This deformation is manifested as the inserting portion 11 moving along the inner ring B. Figure 2The yoke 11 deflects in the direction T indicated by the middle arrow, and the overhang 12 also deflects accordingly. This deformation can cause the compiler to deviate from its designed position, affecting sensor recognition. It can also reduce the assembly force between the insert 11 and the inner ring B, making it more likely for the compiler to fall off the inner ring B and reducing its reliability.

[0009] Therefore, how to provide a bearing speed compiler with high precision and high reliability is an urgent problem to be solved in this field. Summary of the Invention

[0010] The purpose of the present invention is to overcome or at least alleviate the deficiencies of the above-mentioned prior art and to provide a bearing speed compiler and a bearing assembly.

[0011] According to a first aspect of the present invention, a bearing speed compiler is provided. The compiler is annular and is used to be installed on the rotating ring of the bearing. The compiler includes a connecting frame and a compiler element. The connecting frame includes an insert portion and a cantilever portion. The insert portion is cylindrical and extends along the axial direction of the bearing. The insert portion is used to be nested with the rotating ring of the bearing in an interference fit. The cantilever portion is connected to the insert portion. The compiler element is installed on the cantilever portion, wherein:

[0012] The overhanging portion forms a cavity surrounding the bearing in a circumferential direction.

[0013] In at least one embodiment, the overhanging portion includes a planar section having a surface perpendicular to the axial direction, and the planar section is used to provide a mounting reference for the compilation element.

[0014] In at least one embodiment, the overhang further includes an inner segment and an outer segment located on the inner and outer circumferential sides of the insert, respectively, so that the insert is located between the inner and outer circumferential edges of the planar segment in the radial direction of the bearing.

[0015] In at least one embodiment, the compiler is used to be sleeved on the outer circumference of the inner ring of the bearing, the inner ring of the bearing is a rotating ring, and the outer ring of the bearing is a stationary ring.

[0016] The inner section connects the inserting portion and the planar section, and a distal end of the outer section abuts against an outer peripheral surface of the inserting portion.

[0017] In at least one embodiment, the compiler is used to be sleeved on the inner circumference of the outer ring of the bearing, the outer ring of the bearing is a rotating ring, and the inner ring of the bearing is a stationary ring.

[0018] The outer section connects the inserting portion and the planar section, and a distal end of the inner section abuts against an inner circumferential surface of the inserting portion.

[0019] In at least one embodiment, a cross section of the cavity along the axial direction is wedge-shaped.

[0020] In at least one embodiment, the connecting frame is a metal member.

[0021] In at least one embodiment, the compiler further includes a mounting platform, which is provided on a surface of the planar segment facing away from the inserting portion, and the compiler element is fixed to the mounting platform.

[0022] In at least one embodiment, the mounting platform is connected to the planar segment by a vulcanization process.

[0023] According to a second aspect of the present invention, there is provided a bearing assembly comprising a bearing and a sensor, wherein the rotating ring of the bearing can rotate relative to the stationary ring of the bearing, and the sensor is fixedly arranged relative to the stationary ring. The bearing assembly is characterized in that the bearing assembly also comprises a bearing speed compiler according to the present invention, wherein the bearing speed compiler is connected to the rotating ring in a non-rotatable manner relative to each other, and the sensor is used to detect and identify the signal provided by the bearing speed compiler.

[0024] The bearing speed compiler according to the present invention has a simple structure and is not easily deformed or falls off from the bearing.

[0025] The bearing assembly according to the present invention has high reliability and high precision in measuring the bearing rotation speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of a possible bearing speed compiler for a vehicle wheel bearing is shown.

[0027] Figure 2 yes Figure 1 A schematic diagram of a partial enlargement.

[0028] Figure 3 FIG. 1 is a schematic diagram of a half structure of a bearing speed compiler according to an embodiment of the present invention, which is cut away along the axial direction.

[0029] Figure 4 yes Figure 3 A schematic diagram of a partial enlargement.

[0030] Figure 5 and Figure 6 Schematic diagrams of two variations of the connecting frame of the bearing speed compiler according to the present invention.

[0031] Description of reference numerals:

[0032] H wheel hub; B inner ring;

[0033] 10 connecting frame; 11 inserting portion;

[0034] 12, 12s overhang; 121 initial section; 122 flat section; 123 final section; 123e end;

[0035] 20: mounting platform; T: deflection direction; C: cavity;

[0036] R is radial; A is axial. DETAILED DESCRIPTION

[0037] The following describes exemplary embodiments of the present invention with reference to the accompanying drawings. It should be understood that these specific descriptions are only used to teach those skilled in the art how to implement the present invention, and are not intended to exhaust all possible embodiments of the present invention, nor to limit the scope of the present invention.

[0038] Unless otherwise specified, refer to Figure 3 , A represents the axial direction of the bearing speed compiler, which is consistent with the axial direction of the inner ring B of the bearing; R represents the radial direction of the bearing speed compiler, which is consistent with the radial direction of the inner ring B of the bearing.

[0039] Reference Figure 3 and Figure 4 , a bearing speed compiler according to a first embodiment of the present invention is introduced.

[0040] The bearing speed encoder according to the present invention is annular and includes a connecting frame 10, a mounting platform 20, and an encoder element (not shown). The connecting frame 10 is designed to fit over the outer circumference of the inner ring B of the bearing and is non-rotatably connected to the inner ring B. The mounting platform 20 is used to mount the encoder element.

[0041] It is worth mentioning that Figure 3 The shown translator is not fully seated in the bearing axial direction A. Figure 3 The illustrated translator has an allowance for installation further towards the bearing in the axial direction A.

[0042] The connecting frame 10 includes an inserting portion 11 and a hanging portion 12s connected in the axial direction A. The inserting portion 11 is cylindrical and extends in the axial direction A. The hanging portion 12s has a cavity C arranged along the circumference of the inner ring B.

[0043] In this embodiment, the connecting frame 10 is formed by bending or stamping an annular metal piece.

[0044] Next, Figure 4 The cross-sectional shape of half of the connecting frame 10 cut along the axial direction is shown to illustrate the specific structure of the overhang portion 12s.

[0045] Starting from the portion where the overhang portion 12s connects to the insert portion 11, the substantial portion of the overhang portion 12s includes, in order, an inner section 121, a planar section 122, and an outer section 123. The inner section 121 is located on the inner circumference of the insert portion 11, and the outer section 123 is located on the outer circumference of the insert portion 11. Thus, the insert portion 11 is located between the inner and outer circumferential edges of the planar section 122 in the radial direction R.

[0046] In this embodiment, the inner section 121 extends away from the insertion portion 11 along the axial direction A while being tilted inward in the radial direction R. The outer section 123 extends toward the insertion portion 11 along the axial direction A while being tilted outward in the radial direction R. The planar section 122 is perpendicular to the axial direction A, thereby forming the overhang 12s with a wedge-shaped half-section. The perpendicularity of the planar section 122 to the axial direction A provides a reference for the installation of the compilation element.

[0047] The mounting platform 20 is connected to the outer surface of the planar section 122 facing away from the insertion portion 11 .

[0048] Preferably, the mounting platform 20 is made of rubber. Preferably, the rubber mounting platform 20 is formed on the plane section 122 through a vulcanization process. The mounting platform 20 is used to mount a compiling element for sensor recognition.

[0049] Since the inner section 121 and the outer section 123 are inclined toward opposite sides in the radial direction R, the plane section 122 according to the present invention has a greater Figure 2 The overhang 12 bent toward one side in the radial direction R has a larger surface area, thereby leaving a larger installation space for the installation platform 20 .

[0050] Preferably, the distal end 123e of the outer segment 123 abuts the outer circumferential surface of the insert portion 11; more preferably, the distal end 123e abuts the central region of the insert portion 11 in the axial direction A. This not only provides a stable structure for the overhang 12s, but also prevents the insert portion 11 from tilting and deforming radially outward when the insert portion 11 is installed in the inner ring B with an interference fit.

[0051] The overhang portion 12s, which forms the cavity C, has a high structural strength. Even if the insertion portion 11 is slightly deformed, the overhang portion 12s can still substantially maintain its original shape. This allows the planar section 122 to maintain a good posture perpendicular to the axial direction A, thereby allowing the mounting platform 20 connected to the planar section 122 to maintain a stable working position.

[0052] It should be understood that the axial half-section of the cavity C formed by the overhang 12s does not necessarily have to be wedge-shaped. Figure 5 and Figure 6 Two different embodiments of the overhang 12s are shown.

[0053] exist Figure 5 In the illustrated embodiment, the cross-sections of the inner section 121 and the outer section 123 of the overhang portion 12s along the axial direction may be in the shape of a broken line.

[0054] exist Figure 6 In the illustrated embodiment, the cross-sections of the inner section 121 and the outer section 123 of the overhang portion 12s along the axial direction may be arc-shaped.

[0055] Table 1 compares three sets of parameters for a bearing speed encoder according to one embodiment of the present invention (this embodiment) and a bearing speed encoder described in the background technology section above (comparative embodiment) after installation on a bearing. The fit area refers to the surface area of ​​the mounting platform 20 facing away from the insert 11 in the axial direction A. A larger fit area provides a larger installation area for the encoder. The tilt angle refers to the angle of deviation of the planar segment 122 from the radial direction (vertical direction). A smaller angle reduces the encoder's deviation from the predetermined operating position. The retention force refers to the force acting between the connecting frame 10 and the bearing after assembly. A greater retention force results in a more secure encoder installation.

[0056] Table 1

[0057] <![CDATA[Adapted area / mm 2 > Tilt angle / ° Holding force / N Comparative Implementation Methods 525 1.15 3900 This embodiment 820 0.85 6000

[0058] Table 1 illustrates some of the advantages of the present invention:

[0059] (i) The hollow structure of the overhang 12s provides greater structural strength. Even if the insertion portion 11 deforms due to the interference fit, the overhang 12s is less likely to deform. The angle of inclination of the planar section 122 of the overhang 12s from the radial direction is small. This allows the compiling component mounted on the overhang 12s to be more precisely positioned during operation.

[0060] (ii) The end 123e of the outer section 123 of the overhanging portion 12s abuts against or is fixed (for example, by welding) to the outer peripheral surface of the inserting portion 11, so that when the inserting portion 11 is subjected to a force directed radially outward and is tilted and deformed, the end 123e of the outer section 123 can apply a reverse force to the inserting portion 11 to prevent the inserting portion 11 from deforming, thereby making the holding force between the connecting frame 10 and the bearing larger and the connection firmer.

[0061] (iii) The inner section 121 and the outer section 123 are respectively located on both sides of the insert portion 11 in the radial direction, so that the plane section 122 between the inner section 121 and the outer section 123 has a larger adaptation area, providing a larger installation space for the compilation element.

[0062] Of course, the present invention is not limited to the above embodiments. Those skilled in the art can make various modifications to the above embodiments under the guidance of the present invention without departing from the scope of the present invention. For example:

[0063] The bearing speed comparator according to the present invention is not limited to use in automotive wheel hub bearings. When used in other bearings, the bearing can also have a stationary inner ring and a rotating outer ring. In this case, the comparator is nested within the inner circumference of the bearing's outer ring, and the comparator's insert is subjected to a radially inward force exerted by the outer ring. Preferably, the outer segment connects the insert and the planar segment, while the inner segment's distal end abuts the inner circumference of the insert.

Claims

1. A bearing speed compiler, the compiler is annular and is used to be installed on the rotating ring of the bearing, the compiler includes a connecting frame (10) and a compiler element, the connecting frame (10) includes an inserting portion (11) and a hanging portion (12s), the inserting portion (11) is cylindrical and extends along the axial direction (A) of the bearing, the inserting portion (11) is used to be nested with the rotating ring of the bearing in an interference fit, the hanging portion (12s) is connected to the inserting portion (11), and the compiler element is installed on the hanging portion (12s), wherein, The overhang (12s) includes a plane segment (122), an inner segment (121) and an outer segment (123), and the overhang (12s) has a cavity (C) formed by the plane segment (122), the inner segment (121) and the outer segment (123) and surrounding the bearing along the circumference.

2. The bearing speed compiler according to claim 1, characterized in that: The plane section (122) has a surface perpendicular to the axial direction (A), and the plane section (122) is used to provide a mounting reference for the compilation element.

3. The bearing speed compiler according to claim 2, characterized in that: The inner section (121) and the outer section (123) are respectively located on the inner circumferential side and the outer circumferential side of the insert (11), so that the insert (11) is located between the inner circumferential edge and the outer circumferential edge of the plane section (122) in the radial direction (R) of the bearing.

4. The bearing speed compiler according to claim 3, characterized in that: The compiler is used to be sleeved on the outer circumference of the inner ring of the bearing, the inner ring of the bearing is a rotating ring, and the outer ring of the bearing is a stationary ring. The inner section (121) connects the inserting portion (11) and the plane section (122), and the end (123e) of the outer section (123) abuts against the outer peripheral surface of the inserting portion (11).

5. The bearing speed compiler according to claim 3, characterized in that: The compiler is used to be sleeved on the inner circumference of the outer ring of the bearing, the outer ring of the bearing is a rotating ring, and the inner ring of the bearing is a stationary ring. The outer section (123) connects the inserting portion (11) and the plane section (122), and the end of the inner section (121) abuts against the inner circumferential surface of the inserting portion (11).

6. The bearing speed compiler according to any one of claims 1 to 5, characterized in that: The cross section of the cavity (C) along the axial direction (A) is wedge-shaped.

7. The bearing speed compiler according to any one of claims 1 to 5, characterized in that: The connecting frame (10) is a metal part.

8. The bearing speed compiler according to any one of claims 2 to 5, characterized in that: The compiler further comprises a mounting platform (20), wherein the mounting platform (20) is arranged on a surface of the plane section (122) facing away from the insertion portion (11), and the compiler element is fixed to the mounting platform (20).

9. The bearing speed compiler according to claim 8, characterized in that: The mounting platform (20) is connected to the planar section (122) by a vulcanization process.

10. A bearing assembly comprising a bearing and a sensor, wherein the rotating ring of the bearing can rotate relative to the stationary ring of the bearing, and the sensor is fixedly arranged relative to the stationary ring, characterized in that: The bearing assembly further comprises a bearing speed translator according to any one of claims 1 to 9, wherein the bearing speed translator is non-rotatably connected to the rotating ring, and the sensor is used to detect and identify a signal provided by the bearing speed translator.

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