Arrangement structure of bearing retainer ring

Abstract

The utility model relates to the technical field of vehicle engineering, and discloses an arrangement structure of a bearing retainer ring, which comprises a first-generation bearing, a steering knuckle, a wheel speed sensor and a bearing retainer ring, the wheel speed sensor is arranged in a sensor mounting hole of the steering knuckle in a penetrating manner, the bearing retainer ring is provided with a retainer ring opening, and the retainer ring opening of the bearing retainer ring faces the wheel speed sensor. The bottom end of the wheel speed sensor is located in the receding space of the opening of the check ring. According to the utility model, the bottom end of the wheel speed sensor is positioned in the avoiding space of the retainer ring opening by positioning the retainer ring opening of the bearing retainer ring, the bearing retainer ring does not influence the installation and induction of the wheel speed sensor, and a first generation of bearing can also integrate a magnetic encoder; moreover, for driving wheels and non-driving wheels, the wheel speed sensors can be universally used, the structural arrangements are the same, the design of two bearing assemblies, two knuckles and two sets of wire harnesses is avoided, and the cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle engineering, in particular to an arrangement structure of a bearing retaining ring. Background Art

[0002] Due to the layout environment and the relative position of the brake, the first-generation wheel hub bearing (first-generation bearing 1) of the car can only be pressed into the steering knuckle hole from the inside to the outside of the wheel. After the press is completed, the bearing retaining ring 2 must be installed on the inside to limit the position. See Figure 1 and Figure 2 .

[0003] Since the bearing retaining ring 2 occupies the space of the wheel speed sensor 7, the wheel speed sensor 7 cannot be assembled to the sensor installation point 4, so the solution of integrating the magnetic encoder (equivalent to the ABS gear ring) with the bearing seal ring cannot be realized. Therefore, for the driving wheel of the first generation bearing 1, the ABS gear ring 6 can only be integrated on the driving shaft 5. For non-driving wheels, since there is no driving shaft, the ABS gear ring can only be integrated into the bearing, and due to layout reasons, only the axis end face gear ring solution can be adopted, see Figure 3 The connection relationship between the steering knuckle 3, the bearing end cover 8 and the wheel speed sensor 7 is shown in Figure 4 .

[0004] Therefore, for the same vehicle model with two drive types, since it includes drive wheels and non-drive wheels, it is necessary to design and develop two bearing assemblies, two steering knuckles and two sets of wiring harnesses, which leads to increased costs. Utility Model Content

[0005] In view of this, the utility model provides a bearing retaining ring arrangement structure to solve the problem that a bearing sealing ring integrated magnetic encoder cannot be used due to arrangement reasons when a first-generation bearing is used.

[0006] In a first aspect, the utility model provides an arrangement structure of a bearing retaining ring, comprising:

[0007] First generation bearings;

[0008] A steering knuckle, provided with a bearing mounting cavity and a sensor mounting hole;

[0009] A wheel speed sensor is inserted into the sensor installation hole;

[0010] A bearing retaining ring having a retaining ring opening;

[0011] The retaining ring opening of the bearing retaining ring faces the wheel speed sensor, and the bottom end of the wheel speed sensor is located in the avoidance space of the retaining ring opening.

[0012] Beneficial effects: The utility model positions the opening of the bearing retaining ring so that the bottom end of the wheel speed sensor is located in the avoidance space of the retaining ring opening. The bearing retaining ring does not affect the installation and sensing of the wheel speed sensor, and the first-generation bearing can also integrate a magnetic encoder. Moreover, the wheel speed sensors can be used universally for drive wheels and non-drive wheels, and the structural arrangements are the same, avoiding the design of two bearing assemblies, two steering knuckles and two sets of wiring harnesses, thereby saving costs.

[0013] In an optional implementation, a symmetric centerline of the retaining ring opening coincides with an axis of the wheel speed sensor.

[0014] Beneficial effect: Due to the existence of axial avoidance space, the installation of the wheel speed sensor is not affected after the bearing retaining ring is installed, and no interference is generated; and the symmetrical center line of the retaining ring opening coincides with the axis of the wheel speed sensor, thereby preventing the bearing retaining ring from interfering with the wheel speed sensor to the greatest extent.

[0015] In an optional embodiment, the symmetry center line of the retaining ring opening coincides with the axis of the sensor mounting hole.

[0016] Beneficial effect: The symmetrical center line of the retaining ring opening coincides with the axis of the sensor mounting hole, so that the staff can easily locate the retaining ring opening position of the bearing retaining ring by visual identification or measurement.

[0017] In an optional embodiment, a retaining ring installation groove is formed on the inner wall of the steering knuckle near the bearing installation cavity, and the bearing retaining ring is press-fitted into the retaining ring installation groove.

[0018] Beneficial effect: The bearing retaining ring is installed in the retaining ring installation groove, which is convenient for fixing and limiting the bearing.

[0019] In an optional implementation, the bearing retaining ring is made of steel.

[0020] Beneficial effects: Made of steel, the annular bearing retaining ring is elastic and can be easily installed in the retaining ring installation groove.

[0021] In a second aspect, the utility model further provides a positioning tool for a bearing retaining ring, wherein the positioning tool comprises a positioning pin.

[0022] Beneficial effect: A special positioning tool is designed, which includes a positioning pin. Before the bearing retaining ring is pressed, the positioning pin is detachably installed in the sensor mounting hole. Compared with measuring the axis of the sensor mounting hole, measuring the axis of the physical positioning pin is more convenient for positioning the bearing retaining ring so that the bottom end of the wheel speed sensor is located in the avoidance space of the retaining ring opening.

[0023] In an optional embodiment, the locating pin is suitable for being detachably installed in the sensor mounting hole, and at least the portion of the locating pin extending from the bottom side of the sensor mounting hole is fully modeled with the bottom of the wheel speed sensor.

[0024] Beneficial effect: The function of the locating pin is to locate the opening position of the bearing retaining ring so as to leave avoidance space for the installation of the wheel speed sensor. Therefore, at least the part of the locating pin extending from the bottom side of the sensor mounting hole is set to be the same as the structure and size of the bottom of the wheel speed sensor. Only in this way can the position state of the wheel speed sensor extending from the bottom side after being installed in the sensor mounting hole be simulated for accurate positioning.

[0025] In an optional embodiment, a yield structure is provided at the bottom end of the positioning pin.

[0026] Beneficial effect: A yield structure is set at the bottom of the positioning pin to avoid interference with other components and achieve reliable positioning.

[0027] In an optional embodiment, the positioning pin includes a pin cap, a pin body and a positioning portion which are axially arranged in sequence, and the positioning portion is provided with a notch along the axial direction.

[0028] Beneficial effects: The pin cap is stuck on the outside of the sensor mounting hole, which can play a limiting role; the pin body passes through the sensor mounting hole, so that the positioning part radially penetrates into the inner cavity of the steering knuckle, simulating the installation state of the wheel speed sensor, and facilitating the positioning operation of the bearing retaining ring; the positioning part is provided with a notch along the axial direction to avoid interference with the bearing.

[0029] In an optional embodiment, the pin cap, the pin body and the positioning portion are integrally formed.

[0030] Beneficial effects: the pin cap, the pin body and the positioning portion are integrally formed, the process is simple, the mechanical properties are good, and the service life is long. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 A front view showing the positional relationship between a first generation bearing, a bearing retaining ring and a wheel speed sensor mounting point in the prior art;

[0033] Figure 2 for Figure 1 Middle longitudinal section structure diagram;

[0034] Figure 3 This is a schematic diagram of the installation structure when an ABS gear ring is arranged on a drive shaft in the prior art;

[0035] Figure 4 for Figure 3 A three-dimensional diagram of the connection relationship between the center steering knuckle, wheel speed sensor and bearing end cover;

[0036] Figure 5 A bearing retaining ring arrangement structure diagram of an embodiment of the utility model;

[0037] Figure 6 This is a structural schematic diagram of a bearing retaining ring according to an embodiment of the utility model;

[0038] Figure 7 A three-dimensional structural diagram of a bearing retaining ring arrangement structure from another perspective of an embodiment of the utility model;

[0039] Figure 8 This is a structural schematic diagram of a positioning tool according to an embodiment of the utility model;

[0040] Fig. 9 This is a schematic diagram of a state when a positioning tool is installed in a sensor installation hole according to an embodiment of the utility model;

[0041] Fig.10 It is a schematic diagram of the state of the bearing retaining ring of the utility model after the positioning tool is assembled;

[0042] Fig.11 This is a schematic diagram of the positional relationship between the positioning tool and the bearing retaining ring of the utility model;

[0043] Fig.12 The figure is a longitudinal cross-sectional schematic diagram of a bearing retaining ring arrangement structure according to an embodiment of the utility model.

[0044] Description of reference numerals:

[0045] 1. First generation bearings;

[0046] 2. Bearing retaining ring; 21. Retaining ring opening;

[0047] 3. Steering knuckle; 31. Sensor mounting hole;

[0048] 4. Sensor installation point;

[0049] 5. Drive shaft;

[0050] 6. ABS gear ring;

[0051] 7. Wheel speed sensor;

[0052] 8. Bearing end cover;

[0053] 9. Magnetic encoder;

[0054] 10. Positioning pin; 101. Pin cap; 102. Pin body; 103. Positioning portion; 1031. Yielding structure. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0056] In the description of the utility model, it should be noted that, unless otherwise specified, "multiple" means two or more; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0057] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0058] Combine the following Figures 5 to 11 , describing an embodiment of the utility model.

[0059] According to the embodiments of the present utility model, Figure 5 As shown, on the one hand, a bearing retaining ring arrangement structure is provided, comprising:

[0060] Generation 1 bearing;

[0061] The steering knuckle 3 is provided with a bearing mounting cavity and a sensor mounting hole 31;

[0062] The wheel speed sensor 7 is inserted into the sensor mounting hole 31;

[0063] The bearing retaining ring 2 has a retaining ring opening 21;

[0064] The retaining ring opening 21 of the bearing retaining ring 2 faces the wheel speed sensor 7 , and the bottom end of the wheel speed sensor 7 is located in the avoidance space of the retaining ring opening 21 . Figure 5 The angle α in the figure is the central angle of the retaining ring opening 21 , and the bottom of the wheel speed sensor 7 is located in the sector area corresponding to the central angle α of the retaining ring opening 21 .

[0065] The utility model positions the retaining ring opening 21 of the bearing retaining ring 2 so that the bottom end of the wheel speed sensor 7 is located in the avoidance space of the retaining ring opening 21. The bearing retaining ring 2 does not affect the installation and sensing of the wheel speed sensor 7, and the first-generation bearing 1 can also integrate the magnetic encoder 9; moreover, the wheel speed sensor 7 can be universal for the driving wheel and the non-driving wheel, and the structural arrangement is the same, so there is no need to design two bearing assemblies, two steering knuckles 3 and two sets of wiring harnesses, which greatly saves costs.

[0066] In some embodiments, the symmetry centerline of the retaining ring opening 21 coincides with the axis of the wheel speed sensor 7 .

[0067] Due to the existence of axial avoidance space, the installation of the wheel speed sensor 7 is not affected after the bearing retaining ring 2 is installed, and no interference will occur; and the symmetric center line of the retaining ring opening 21 coincides with the axis of the wheel speed sensor 7, thereby preventing the bearing retaining ring 2 from interfering with the wheel speed sensor 7 to the greatest extent.

[0068] In some embodiments, the symmetrical center line of the retaining ring opening 21 can also be coincident with the axis of the sensor mounting hole 31. In this way, when the wheel speed sensor 7 is not installed, the staff can also locate the position of the retaining ring opening 21 of the bearing retaining ring 2 by visual identification or measurement.

[0069] It should be noted that if Figure 7 and Fig.12 As shown, a retaining ring installation groove is provided on the inner wall of the steering knuckle 3 near the bearing installation cavity, and the bearing retaining ring 2 is press-fitted into the retaining ring installation groove.

[0070] The bearing retaining ring 2 is installed in the retaining ring installation groove to facilitate the fixing and limiting of the bearing.

[0071] Specifically, the bearing retaining ring 2 is made of steel. Made of steel, the annular sheet-shaped bearing retaining ring 2 is elastic and can be easily installed in the retaining ring installation groove. Figure 6 .

[0072] According to an embodiment of the present utility model, on the other hand, a positioning tool for a bearing retaining ring 2 is also provided, and the positioning tool comprises a positioning pin 10. The structure of the positioning tool is shown in FIG. Figure 8 .

[0073] Design a special positioning tool, the positioning tool includes a positioning pin 10, such as Fig. 9 As shown, before the bearing retaining ring 2 is pressed, the locating pin 10 is first detachably installed in the sensor mounting hole 31. Compared with measuring the axis of the sensor mounting hole 31, measuring the axis of the physical locating pin 10 is obviously more convenient for positioning and more convenient for positioning the bearing retaining ring 2, so that the bottom end of the wheel speed sensor 7 is located in the avoidance space of the retaining ring opening 21.

[0074] In some embodiments, the positioning pin 10 is adapted to be detachably mounted in the sensor mounting hole 31, and at least the portion of the positioning pin 10 extending from the bottom side of the sensor mounting hole 31 is fully modularly arranged with the bottom of the wheel speed sensor 7. Fig. 9 As shown, before installing the bearing retaining ring 2, first install the positioning pin 10 into the sensor installation hole 31, and then Fig.10 As shown, under the positioning of the positioning pin 10, the bearing retaining ring 2 is pressed into the retaining ring installation groove of the steering knuckle 3. The state after installation is shown in FIG. Fig.11 .

[0075] The function of the locating pin 10 is to locate the position of the retaining ring opening 21 of the bearing retaining ring 2 so as to leave an avoidance space for the installation of the wheel speed sensor 7. Therefore, at least the part of the locating pin 10 extending from the bottom side of the sensor mounting hole 31 is set to be the same as the structure and size of the bottom of the wheel speed sensor 7, so as to simulate the position state of the wheel speed sensor 7 extending from the bottom side after being installed in the sensor mounting hole 31, and perform accurate positioning.

[0076] It should be noted that if the bearing retaining ring 2 is misplaced during installation, the bearing retaining ring 2 cannot be installed under the obstruction of the positioning pin 10. In addition, the positioning pin 10 is only used when the bearing retaining ring 2 is pressed. After the bearing retaining ring 2 is installed, the positioning pin 10 needs to be taken out from the sensor installation hole 31 and the wheel speed sensor 7 is installed in the sensor installation hole 31.

[0077] In some embodiments, a yield structure 1031 is disposed at the bottom end of the positioning pin 10 .

[0078] A clearance structure 1031 is provided at the bottom of the positioning pin 10 to avoid interference with other components and achieve reliable positioning. Generally, the clearance structure 1031 is only required when the positioning pin 10 may interfere with the first-generation bearing 1 or other components. Therefore, whether to provide the clearance structure 1031 can be selected according to actual conditions.

[0079] In some embodiments, Figure 8 As shown, the positioning pin 10 includes a pin cap 101, a pin body 102 and a positioning portion 103 which are sequentially arranged axially, and the positioning portion 103 is provided with a notch as a yielding structure 1031 along the axial direction.

[0080] The pin cap 101 is stuck on the outside of the sensor mounting hole 31, which can play a limiting role; the pin body 102 passes through the sensor mounting hole 31, so that the positioning part 103 radially penetrates into the inner cavity of the steering knuckle 3, simulating the installation state of the wheel speed sensor 7, and facilitating the positioning operation of the bearing retaining ring 2; the positioning part 103 is provided with a notch along the axial direction to avoid interference with the bearing.

[0081] Specifically, the pin cap 101, the pin body 102 and the positioning portion 103 are integrally formed. The integrally formed structure has simple process, good mechanical properties and long service life.

[0082] The bearing retaining ring 2 of the utility model can use a special tooling locating pin 10 when assembling the assembly. The locating pin 10 is first inserted into the sensor mounting hole 31. When the retaining ring is installed, the opening direction can only be assembled toward the sensor mounting hole 31 (other directions will not be installed due to interference with the tooling locating pin 10). As a result, the wheel speed sensor 7 has enough radial installation space, and the sealing ring of the first-generation bearing 1 can be integrated with the magnetic encoder 9 (ABS ring gear 6), which can be uniformly applied to both drive wheels and non-drive wheels, without the need to redesign and arrange the wheel speed sensor 7 and the ABS ring gear 6, thus achieving the commonality of parts and reducing the cost of vehicle development.

[0083] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A bearing retaining ring arrangement structure, characterized in that: include: First generation bearings (1); The steering knuckle (3) is provided with a bearing mounting cavity and a sensor mounting hole (31); A wheel speed sensor (7) is inserted into the sensor mounting hole (31); A bearing retaining ring (2) having a retaining ring opening (21); The retaining ring opening (21) of the bearing retaining ring (2) faces the wheel speed sensor (7), and the bottom end of the wheel speed sensor (7) is located in the avoidance space of the retaining ring opening (21).

2. The arrangement structure of the bearing retaining ring according to claim 1 is characterized in that: The symmetric center line of the retaining ring opening (21) coincides with the axis of the wheel speed sensor (7).

3. The arrangement structure of the bearing retaining ring according to claim 1, characterized in that: The symmetry center line of the retaining ring opening (21) coincides with the axis of the sensor mounting hole (31).

4. The arrangement structure of the bearing retaining ring according to claim 1, characterized in that: A retaining ring installation groove is provided on the inner wall of the steering knuckle (3) near the bearing installation cavity, and the bearing retaining ring (2) is pressed into the retaining ring installation groove.

5. The arrangement structure of the bearing retaining ring according to claim 1, characterized in that: The bearing retaining ring (2) is made of steel.

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