Bearing arrangement structure of joint motor

Abstract

The utility model relates to a bearing arrangement structure of a joint motor, which comprises a motor shell, a bearing and a bearing pressing plate, a through hole is arranged on the end face of one end of the motor shell, a convex ring is arranged on the outer ring of the through hole, one side of the outer ring of the bearing is clamped in the convex ring, the bearing pressing plate is buckled on the other side of the outer ring of the bearing, and the bearing pressing plate is arranged on the end face of the other end of the motor shell. The bearing pressing plate is fixed to the inner end face of the motor shell through a bolt, and the bolt penetrates through the inner end face of the motor shell. The rotating shaft and the motor shell are connected through the bearing, the bearing is installed in a limited mode through the convex ring and the bearing pressing plate on the motor shell, overall installation is convenient, the bolt used for fixing the bearing pressing plate and the motor shell penetrates through the motor shell and can be directly used for fixing the harmonic reducer, and installation steps are further simplified.

Description

Technical Field

[0001] The utility model belongs to the technical field of joint motor structures, and in particular relates to a bearing arrangement structure of a joint motor. Background Art

[0002] The joint motor is a mechatronic device consisting of a motor and a reducer. Its working principle is based on the synergy of the motor and the reducer to achieve high-precision movement. The joint motor is mainly composed of the motor body, reducer, bearing, controller assembly, housing and other parts. The bearing between the motor shaft and the motor housing needs to be installed with interference fit. Improper operation can easily cause damage to the parts. In addition, due to the large number of parts contained in the existing joint motor, the motor and reducer need to be assembled separately and then connected together. The entire installation process is cumbersome, affecting assembly efficiency. Utility Model Content

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a bearing arrangement structure of a joint motor that is easy to install.

[0004] In order to achieve the above-mentioned utility model purpose, the utility model adopts the following technical solutions:

[0005] A bearing arrangement structure for a joint motor includes a motor housing, a bearing and a bearing pressure plate, wherein a through hole is provided on the end face of one end of the motor housing, and a convex ring is provided on the outer ring of the through hole. One side of the outer ring of the bearing is clamped in the convex ring, and the bearing pressure plate is buckled on the other side of the outer ring of the bearing. The bearing pressure plate is fixed to the inner end face of the motor housing by bolts, and the bolts penetrate the inner end face of the motor housing.

[0006] As a preferred solution: the inner ring of the bearing is fixedly sleeved on the rotating shaft, a mounting ring groove is provided on the rotating shaft, a retaining spring is further provided in the mounting ring groove, and one side of the bearing is against the retaining spring.

[0007] As a preferred solution: a shoulder is further provided at the end of the rotating shaft, and the other side of the inner ring of the bearing abuts against the shoulder of the rotating shaft.

[0008] As a preferred solution: the bearing pressure plate includes an integrally formed fixed plate edge, a clamping sleeve and a retaining ring, the fixed plate edge and the retaining ring are parallel to each other, and the clamping sleeve and the retaining ring are vertically arranged.

[0009] As a preferred solution: an annular notch (632) is also provided at the connection between the fixed plate edge of the bearing pressure plate and the clamping sleeve, and the annular notch is buckled on the convex ring.

[0010] As a preferred solution: a limiting rib is formed between the through hole and the convex ring for axially limiting the bearing.

[0011] The rotating shaft and the motor housing of the utility model are connected by a bearing, and the bearing is limitedly installed by a convex ring and a bearing pressure plate on the motor housing. The overall installation is convenient and parts are not easily damaged. The bolts used to fix the bearing pressure plate and the motor housing pass through the motor housing and can be directly used to fix the harmonic reducer, further simplifying the installation steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings in the specification, which constitute a part of the present application, are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute a limitation on the present application.

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0015] Figure 3 and Figure 4 It is a schematic diagram of the exploded structure of the utility model at two different angles;

[0016] Figure 5 It is a structural schematic diagram of the bearing pressure plate of the utility model;

[0017] Figure 6 It is a structural schematic diagram of the motor housing of the utility model;

[0018] Figure 7 It is a structural schematic diagram of the rotating shaft, bearing and retaining spring of the utility model.

[0019] The reference numerals in the drawings are: 5, motor housing; 54, convex ring; 55, limiting rib; 6, rotating shaft; 63, bearing pressure plate; 631, retaining ring; 632, annular notch; 64, bearing; 65, retaining ring; 67, mounting ring groove. DETAILED DESCRIPTION

[0020] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0021] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0022] In addition, in the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more, unless otherwise clearly defined.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0026] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0027] like Figures 1 to 7The bearing arrangement structure of a joint motor shown in the figure includes a motor housing 5, a bearing 64 and a bearing pressure plate 63. A through hole is provided on the end surface of one end of the motor housing 5. A convex ring 54 is provided on the outer ring of the through hole. A limiting rib 55 for axially limiting the bearing 64 is formed between the through hole and the convex ring 54. One side of the outer ring of the bearing 64 is clamped in the convex ring 54, and the bearing pressure plate 63 is buckled on the other side of the outer ring of the bearing 64. The bearing pressure plate 63 is fixed to the inner end surface of the motor housing 5 by bolts, and the bolts penetrate the inner end surface of the motor housing 5.

[0028] The inner ring of the bearing 64 is fixedly sleeved on the rotating shaft 6. The rotating shaft 6 is provided with a mounting ring groove 67. A retaining spring 65 is also provided in the mounting ring groove 67. One side of the bearing 64 abuts against the retaining spring 65. A shoulder is also provided at the end of the rotating shaft 6. The other side of the inner ring of the bearing 64 abuts against the shoulder of the rotating shaft 6. The inner and outer rings of the bearing are designed with corresponding limiting structures, which can ensure the firm connection between the bearing and the rotating shaft and the motor housing, and ensure the stable operation of the joint motor.

[0029] The bearing pressure plate 63 includes an integrally formed fixed plate edge, a clamping sleeve and a retaining ring 631. The fixed plate edge and the retaining ring 631 are parallel to each other, and the clamping sleeve and the retaining ring 631 are arranged vertically. An annular notch 632 is also provided at the connection between the fixed plate edge and the clamping sleeve of the bearing pressure plate 63, and the annular notch 632 is buckled on the convex ring 54. The convex ring on the housing can not only limit the bearing, but also position the bearing cover plate when installing the bearing cover plate, which is convenient for operation.

[0030] The rotating shaft and the motor housing of the utility model are connected by a bearing, and the bearing is limitedly installed by a convex ring and a bearing pressure plate on the motor housing. The overall installation is convenient and parts are not easily damaged. The bolts used to fix the bearing pressure plate and the motor housing pass through the motor housing and can be directly used to fix the harmonic reducer, further simplifying the installation steps.

[0031] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0032] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A bearing arrangement structure of a joint motor, characterized in that: The motor housing (5) comprises a motor housing (5), a bearing (64) and a bearing pressure plate (63); a through hole is provided on an end surface of one end of the motor housing (5); a convex ring (54) is provided on an outer ring of the through hole; one side of the outer ring of the bearing (64) is clamped in the convex ring (54); the bearing pressure plate (63) is buckled on the other side of the outer ring of the bearing (64); the bearing pressure plate (63) is fixed to the inner end surface of the motor housing (5) by bolts, and the bolts penetrate the inner end surface of the motor housing (5).

2. The bearing arrangement structure of the joint motor according to claim 1, characterized in that: The inner ring of the bearing (64) is fixedly sleeved on the rotating shaft (6), the rotating shaft (6) is provided with a mounting ring groove (67), a retaining spring (65) is further provided in the mounting ring groove (67), and one side of the bearing (64) abuts against the retaining spring (65).

3. The bearing arrangement structure of the joint motor according to claim 2, characterized in that: The end of the rotating shaft (6) is also provided with a shaft shoulder, and the other side of the inner ring of the bearing (64) abuts against the shaft shoulder of the rotating shaft (6).

4. The bearing arrangement structure of the joint motor according to claim 1, characterized in that: The bearing pressure plate (63) comprises an integrally formed fixed plate edge, a clamping sleeve and a retaining ring (631); the fixed plate edge and the retaining ring (631) are parallel to each other, and the clamping sleeve and the retaining ring (631) are arranged vertically.

5. The bearing arrangement structure of the joint motor according to claim 4, characterized in that: An annular notch (632) is also provided at the connection between the fixed plate edge of the bearing pressure plate (63) and the clamping sleeve, and the annular notch (632) is buckled on the convex ring (54).

6. The bearing arrangement structure of the joint motor according to claim 1, characterized in that: A limiting rib (55) for axially limiting the bearing (64) is formed between the through hole and the convex ring (54).

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