Adjusting structure of hub electric driving device

Abstract

The utility model belongs to the technical field of automobile hubs, and particularly relates to an adjusting structure of a hub electric driving device, which comprises an electric driving mechanism for providing power for a hub, and further comprises a load connecting body, a load output shaft; the bearing position with a through hole is arranged at the front end of the load connecting body, and the load bearing is mounted in the bearing position; the check ring is located at the front end of the load bearing; a locking member; wherein the check ring and the load bearing are sequentially connected to the rear end of the load output shaft in a sleeving mode, a step face is arranged on the radial outer side of the load output shaft in the circumferential direction, one end of the check ring abuts against the first step face, and the other end of the check ring abuts against the front end of the load bearing. The load output shaft has the advantages that the rear end of the load output shaft is flexible and adjustable through the arrangement of the locking piece, the locking piece can extrude the check ring through the step after being locked, then the check ring extrudes the load bearing to enable the load bearing to be fixed in the bearing position in an abutting mode, and the stability of loads and the smoothness of rotation are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel hubs, in particular to an adjusting structure of a wheel hub electric drive device. Background Art

[0002] In the prior art, the wheel hub electric drive device usually supports the load through its front end, and the rear end is usually set as a motor to output power to the wheel hub. After the wheel hub electric drive mechanism and the vehicle body chassis are installed, it is found that the power output is not smooth. After the front end adjustment is completed, the rear end needs to be adjusted accordingly. When adjusting the rear end, the motor needs to be disassembled, which is more troublesome. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide an adjustment structure for a wheel hub electric drive device.

[0004] The technical solution of the utility model is implemented as follows: an adjustment structure of a wheel hub electric drive device, the electric drive device includes an electric drive mechanism that provides power to the wheel hub, and also includes:

[0005] A load connector is connected to the rear end of the electric drive mechanism and is used to connect the vehicle body chassis as a support system of the wheel hub electric drive device;

[0006] A load output shaft is provided between the electric drive mechanism and the wheel hub for transmitting the power generated by the electric drive mechanism to the wheel hub. One end of the load output shaft passes through the electric drive mechanism and is mounted on the load connector through a load bearing.

[0007] A bearing seat, wherein the front end of the load connector is provided with a bearing seat with a through hole, the load bearing is installed in the bearing seat, and the rear end of the load bearing is in contact with the bearing seat;

[0008] The retaining ring is located at the front end of the load bearing;

[0009] Locking piece: the rear end of the load output shaft passes through the bearing position and is connected with a locking piece, which is used to axially lock the rear end of the load output shaft.

[0010] Among them, the retaining ring and the load bearing are sequentially sleeved on the rear end of the load output shaft, and a step surface is circumferentially arranged on the radial outer side of the load output shaft. One end of the retaining ring abuts against the first step surface, and the other end abuts against the front end of the load bearing.

[0011] Furthermore, the electric drive mechanism includes a motor housing and a rear end cover installed at the rear end of the motor housing, the rear end of the rear end cover is provided with a connection mating surface for adapting to a load connector, and the load connector is connected to the connection mating surface by bolts.

[0012] Furthermore, the locking piece is a nut.

[0013] Furthermore, a sealing cover is provided at the rear end of the load connector to seal the locking member.

[0014] The beneficial effects of the utility model are:

[0015] The rear end of the load output shaft is flexibly adjustable through the setting of the locking piece. After the locking piece is locked, it can squeeze the retaining ring through the step, and then squeeze the load bearing through the retaining ring to make it abutted and fixed in the bearing position, thereby improving the stability of the load and the smoothness of rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a cross-sectional view of a wheel hub electric drive device according to a specific implementation method of the utility model. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] In the description of the present application, it should be noted that the terms used here are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0020] Embodiment 1:

[0021] like Figure 1As shown, the utility model discloses an adjustment structure of a wheel hub electric drive device, the electric drive device includes an electric drive mechanism for providing power to the wheel hub 1, and also includes:

[0022] The load connector 2 is connected to the rear end of the electric drive mechanism and is used to connect the vehicle body chassis as a support system of the wheel hub electric drive device;

[0023] A load output shaft 3 is provided between the electric drive mechanism and the wheel hub for transmitting the power generated by the electric drive mechanism to the wheel hub. One end of the load output shaft 3 passes through the electric drive mechanism, and the other end passes through the electric drive mechanism, and is installed on the load connector 2 through a load bearing;

[0024] Bearing position 4: the front end of the load connector 2 is provided with a bearing position 4 with a through hole, the load bearing is installed in the bearing position 4, and the rear end of the load bearing is in contact with the bearing position 4;

[0025] Retaining ring 5, located at the front end of the load bearing;

[0026] The rear end of the load output shaft 3 passes through the bearing position 4 and is connected with the locking member 6, which is used to axially lock the rear end of the load output shaft 3.

[0027] Among them, the retaining ring 5 and the load bearing are sequentially sleeved on the rear end of the load output shaft 3, and a step surface is circumferentially arranged on the radial outer side of the load output shaft 3. One end of the retaining ring 5 abuts against the first step surface, and the other end abuts against the front end of the load bearing.

[0028] In this solution, the retaining ring 11 is a metal part with a long service life.

[0029] By adopting the above technical solution, the rear end of the load output shaft is flexibly adjustable through the setting of the locking piece. After the locking piece is locked, it can squeeze the retaining ring through the step, and then squeeze the load bearing through the retaining ring so that it is abutted and fixed in the bearing position, thereby improving the stability of the load and the smoothness of rotation.

[0030] Embodiment 2:

[0031] This embodiment provides an adjustment structure of a wheel hub electric drive device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0032] Furthermore, the electric drive mechanism includes a motor housing 7 and a rear end cover 8 installed at the rear end of the motor housing 7. The rear end of the rear end cover 8 is provided with a connecting mating surface for adapting to the load connector 2. The load connector 2 is connected to the connecting mating surface by bolts.

[0033] By adopting the above technical solution, the connection is firm and the disassembly is convenient.

[0034] Embodiment 3:

[0035] This embodiment provides an adjustment structure of a wheel hub electric drive device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0036] Furthermore, the locking member 6 is a nut.

[0037] By adopting the above technical solution, the tightness can be flexibly adjusted through the setting of the nut, and the load output shaft can rotate stably and smoothly.

[0038] Embodiment 4:

[0039] This embodiment provides an adjustment structure of a wheel hub electric drive device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0040] Furthermore, a sealing cover 13 is provided at the rear end of the load connector 2 for sealing the locking member 6 .

[0041] By adopting the above technical solution, the setting of the sealing cover can prevent impurities from invading the interior, effectively improving the service life, and the sealing cover is connected and fixed to the load connector by screws.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An adjustment structure of a wheel hub electric drive device, the electric drive device comprising an electric drive mechanism for providing power to the wheel hub (1), characterized in that: Also includes: A load connector (2) is connected to the rear end of the electric drive mechanism and is used as a support system for the wheel hub electric drive device to connect to the vehicle chassis; A load output shaft (3) is provided between the electric drive mechanism and the wheel hub for transmitting power generated by the electric drive mechanism to the wheel hub, one end of the load output shaft (3) passes through the electric drive mechanism, and is mounted on the load connecting body (2) via a load bearing; A bearing seat (4), wherein the front end of the load connector (2) is provided with a bearing seat (4) having a through hole, the load bearing is installed in the bearing seat (4), and the rear end of the load bearing is in contact with the bearing seat (4); A retaining ring (5) is located at the front end of the load bearing; A locking member (6) is provided, wherein the rear end of the load output shaft (3) passes through the bearing position (4) and is connected to the locking member (6), and is used to axially lock the rear end of the load output shaft (3). The retaining ring (5) and the load bearing are sleeved on the rear end of the load output shaft (3) in sequence, a step surface is provided in the radial outer circumferential direction of the load output shaft (3), one end of the retaining ring (5) abuts against the first step surface, and the other end abuts against the front end of the load bearing.

2. The adjustment structure of the wheel hub electric drive device according to claim 1, characterized in that: The electric drive mechanism comprises a motor housing (7) and a rear end cover (8) mounted on the rear end of the motor housing (7); a connection mating surface for adapting to a load connector (2) is provided at the rear end of the rear end cover (8); and the load connector (2) is connected to the connection mating surface by means of bolts.

3. The adjustment structure of the wheel hub electric drive device according to claim 1, characterized in that: The locking member (6) is a nut.

4. The adjustment structure of the wheel hub electric drive device according to claim 1, characterized in that: A sealing cover (13) is provided at the rear end of the load connector (2) for sealing the locking member (6).

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