Motor and planetary reducer integrated machine

Abstract

The utility model relates to the technical field of motor and planetary reducer integrated machines, in particular to a motor and planetary reducer integrated machine which comprises a motor, a planetary reducer and a connecting plate, and the motor is fixedly connected to one end of the connecting plate. The planetary reducer comprises an outer shell, a planet carrier and a planet wheel, one end of the outer shell is fixedly installed at the end, away from the motor, of the connecting plate, an inner gear ring is arranged in the outer shell, one end of the planet carrier is rotatably installed in the outer shell, and the other end of the planet carrier is rotatably installed between the connecting plate and the outer shell. The planetary gear of the planetary reducer is meshed with the output shaft of the motor through the connecting plate, the motor and the planetary reducer are integrated, on one hand, the overall occupied space is reduced, the structure is compact, the motor can be used in occasions with limited space, and applicability is improved, on the other hand, transmission parts between the motor and the planetary reducer are few, and cost is low. And convenience is brought to manufacturing and mounting, and maintenance efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor and planetary reducer integrated machine, in particular to a motor and planetary reducer integrated machine. Background Art

[0002] In high torque situations, a motor and a planetary reducer are usually used in combination. A transfer box is installed on the output end of the existing motor, and a transmission gear is installed in the transfer box. The output shaft of the transfer box is connected to the input shaft of the planetary reducer, resulting in a large space and a large weight for the overall structure. It cannot be used in some occasions with limited space, which reduces its applicability. Utility Model Content

[0003] The technical problem to be solved by the utility model is: in order to solve the problem that a transfer box is installed on the output end of the existing motor, a transmission gear is installed in the transfer box, and the output shaft of the transfer box is connected with the input shaft of the planetary reducer, resulting in the overall structure occupying a large space and a large weight, which cannot be applied to some occasions with limited space, reducing the applicability. Now a motor and planetary reducer integrated machine is provided.

[0004] The technical solution adopted by the utility model to solve the technical problem is: a motor and planetary reducer integrated machine, including a motor and a planetary reducer, and also including a connecting plate, wherein the motor is fixedly connected to one end of the connecting plate;

[0005] The planetary reducer includes an outer shell, a planet carrier and a planetary gear. One end of the outer shell is fixedly mounted on an end of a connecting plate away from the motor. An inner gear ring is arranged in the outer shell. One end of the planet carrier is rotatably mounted in the outer shell. The other end of the planet carrier is rotatably mounted between the connecting plate and the outer shell. The planetary gear is rotatably mounted on the planet carrier and meshes with the inner gear ring. The output shaft of the motor passes through the connecting plate and meshes with the planetary gear. The end of the planet carrier away from the connecting plate is the output end and extends out of the outer shell. Compared with the prior art, the present solution meshes the planetary gear of the planetary reducer and the output shaft of the motor with each other through the connecting plate, so that the motor and the planetary reducer form an integrated structure. On the one hand, the overall occupied space is reduced, the structure is compact, and it can be used in some occasions with limited space, which improves the applicability. On the other hand, there are fewer transmission components between the motor and the planetary reducer, which is convenient for manufacturing and installation, and improves the maintenance efficiency.

[0006] In order to realize the rotation support of the planet carrier between the connecting plate and the outer shell, some preferred embodiments further include a first bearing, which is installed between the connecting plate and the outer shell, and the other end of the planet carrier is rotationally supported between the connecting plate and the outer shell through the first bearing, and the planet carrier is provided with a limiting mechanism for limiting the displacement of the first bearing. The planet carrier is rotationally supported between the connecting plate and the outer shell through the first bearing, and the first bearing is limited to the outer shell through the limiting mechanism, so as to ensure that the first bearing support is stable and reliable.

[0007] In order to realize the limiting mechanism, some embodiments are preferred, wherein the limiting mechanism includes a limiting nut, the limiting nut is threadedly connected to the planet carrier, and the first bearing is located between the outer shell and the limiting nut. By threading the limiting nut on the planet carrier, the limiting nut limits the first bearing between the outer shell and the planet carrier.

[0008] In order to facilitate the screwing of the limit nut, preferably some embodiments, the limit nut is provided with a matching hole for use with a tool. The matching hole is provided on the limit nut, and the matching hole cooperates with an external tool to facilitate the screwing of the limit nut.

[0009] In order to realize the rotation of the planet carrier on the outer shell, in some preferred embodiments, the planet carrier and one end of the outer shell rotate via a second bearing.

[0010] In order to prevent the second bearing from axially moving, in some preferred embodiments, a limiting shoulder is provided at one end of the planet carrier located at the output end, and the limiting shoulder is arranged against the second bearing. By providing a limiting shoulder on the planet carrier, the limiting shoulder limits the second bearing between the planet carrier and the outer shell, effectively preventing the second bearing from axially moving.

[0011] In order to prevent the oil in the planetary reducer from overflowing, in some preferred embodiments, an oil seal is provided between the limit shoulder and the outer shell, and the second bearing is located between the oil seal and the outer shell. By providing an oil seal between the limit shoulder and the outer shell, the oil in the planetary reducer is sealed to prevent the oil in the planetary reducer from overflowing.

[0012] In order to facilitate the installation of the motor and the connecting plate, in some preferred embodiments, a positioning groove is provided at one end of the connecting plate, and a positioning block matching the positioning groove is provided at one end of the motor close to its output shaft, and the positioning block is arranged in the positioning groove.

[0013] In some preferred embodiments, the connection plate and the motor, as well as the connection plate and the outer shell are fixedly connected by screws.

[0014] The beneficial effects of the utility model are as follows: when the integrated motor and planetary reducer of the utility model is in use, the planetary gear of the planetary reducer and the output shaft of the motor are meshed with each other through the connecting plate, so that the motor and the planetary reducer form an integrated structure. On the one hand, the overall occupied space is reduced, the structure is compact, and it meets the needs of use in some occasions with limited space, which improves applicability. On the other hand, there are fewer transmission parts between the motor and the planetary reducer, which is convenient for manufacturing and installation, improves maintenance efficiency, and avoids the problem that a transfer box is installed on the output end of the motor in the existing method, a transmission gear is installed in the transfer box, and the output shaft of the transfer box is connected to the input shaft of the planetary reducer, resulting in a large occupied space and a large weight of the overall structure, which cannot be applied to some occasions with limited space, reducing the applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 It is a schematic diagram of the internal structure of the utility model;

[0017] Figure 2 yes Figure 1 A partial enlarged view of middle A;

[0018] Figure 3 yes Figure 1 A partial enlarged view of B.

[0019] In the figure: 1. motor, 2. planetary reducer, 3. outer shell, 4. planetary carrier, 5. planetary gear, 6. inner ring gear, 7. output end, 8. first bearing, 9. limit nut, 10. matching hole, 11. second bearing, 12. limit shoulder, 13. oil seal, 14. positioning groove, 15. positioning block, 16. screw, 17. connecting plate, 18. output shaft. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below in conjunction with the embodiments:

[0021] The present invention is not limited to the following specific implementations. A person skilled in the art can implement the present invention in a variety of other specific implementations according to the content disclosed in the present invention, or any design structure and idea of ​​the present invention with simple changes or modifications shall fall within the protection scope of the present invention. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0022] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0023] In the description of the present invention, it should be noted 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 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 by specific circumstances.

[0024] like Figure 1-3 As shown, a motor and planetary reducer integrated machine includes a motor 1, a planetary reducer 2 and a connecting plate 17, one end of the connecting plate 17 is provided with a positioning groove 14, one end of the motor 1 close to its output shaft 18 is provided with a positioning block 15 matching the positioning groove 14, the positioning block 15 is arranged in the positioning groove 14, and the motor 1 is fixedly connected to one end of the connecting plate 17 by a screw 16;

[0025] The planetary reducer 2 includes an outer shell 3, a planet carrier 4, a planetary gear 5 and a first bearing 8. One end of the outer shell 3 is fixedly mounted on the end of the connecting plate 17 away from the motor 1 by a screw 16. An inner ring gear 6 is arranged in the outer shell 3. One end of the planet carrier 4 is rotatably mounted in the outer shell 3. The first bearing 8 is installed between the connecting plate 17 and the outer shell 3. The other end of the planet carrier 4 is rotatably supported between the connecting plate 17 and the outer shell 3 by the first bearing 8. The planetary gear 5 is rotatably mounted on the planet carrier 4 and meshes with the inner ring gear 6. The output shaft 18 of the motor 1 passes through the connecting plate 17 and meshes with the planetary gear 5. The end of the planet carrier 4 away from the connecting plate 17 is the output end 7 and extends out of the outer shell 3.

[0026] A limiting mechanism is provided on the planet carrier 4, which is used to limit the displacement of the first bearing 8. The limiting mechanism includes a limiting nut 9, which is threadedly connected to the planet carrier 4. The first bearing 8 is located between the outer shell 3 and the limiting nut 9. The limiting nut 9 is provided with a matching hole 10 for use with a tool.

[0027] The planet carrier 4 rotates with one end of the outer shell 3 through the second bearing 11. A limiting shoulder 12 is provided at one end of the planet carrier 4 located at the output end 7. The limiting shoulder 12 is abutted against the second bearing 11. An oil seal 13 is provided between the limiting shoulder 12 and the outer shell 3. The second bearing 11 is located between the oil seal 13 and the outer shell 3.

[0028] When the above-mentioned integrated motor and planetary reducer is in use, the output shaft 18 of the motor 1 rotates with the planetary gear 5, and the planetary gear 5 rotates on the planetary carrier 4. At the same time, the planetary gear 5 rotates on the inner gear ring 6 in the outer shell 3, and the planetary carrier 4 rotates on the outer shell 3.

[0029] The solution has a simple and compact structure, is easy to manufacture and maintain, occupies a small space, is suitable for occasions with limited space, and has improved applicability.

[0030] The above-mentioned ideal embodiments of the utility model are inspirations. Through the above-mentioned description, relevant staff can make various changes and modifications without deviating from the technical concept of the utility model. The technical scope of the utility model is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A motor and planetary reducer integrated machine, comprising a motor (1) and a planetary reducer (2), characterized in that: It also includes a connecting plate (17), and the motor (1) is fixedly connected to one end of the connecting plate (17); The planetary reducer (2) comprises an outer shell (3), a planet carrier (4) and a planetary gear (5); one end of the outer shell (3) is fixedly mounted on an end of a connecting plate (17) away from the motor (1); an inner gear ring (6) is provided in the outer shell (3); one end of the planet carrier (4) is rotatably mounted in the outer shell (3); the other end of the planet carrier (4) is rotatably mounted between the connecting plate (17) and the outer shell (3); the planetary gear (5) is rotatably mounted on the planet carrier (4) and meshes with the inner gear ring (6); the output shaft (18) of the motor (1) passes through the connecting plate (17) and meshes with the planetary gear (5); the end of the planet carrier (4) away from the connecting plate (17) is an output end (7) and extends out of the outer shell (3).

2. The integrated motor and planetary reducer according to claim 1, characterized in that: The invention also includes a first bearing (8), which is installed between the connecting plate (17) and the outer shell (3); the other end of the planet carrier (4) is rotatably supported between the connecting plate (17) and the outer shell (3) through the first bearing (8); and a limiting mechanism for limiting the displacement of the first bearing (8) is provided on the planet carrier (4).

3. The integrated motor and planetary reducer according to claim 2, characterized in that: The limiting mechanism comprises a limiting nut (9), the limiting nut (9) is threadedly connected to the planet carrier (4), and the first bearing (8) is located between the outer shell (3) and the limiting nut (9).

4. The integrated motor and planetary reducer according to claim 3, characterized in that: The limiting nut (9) is provided with a matching hole (10) for use with a tool.

5. The integrated motor and planetary reducer according to claim 1, characterized in that: The planet carrier (4) and one end of the outer shell (3) rotate via a second bearing (11).

6. The integrated motor and planetary reducer according to claim 5, characterized in that: A limiting shoulder (12) is provided at one end of the planet carrier (4) located at the output end (7), and the limiting shoulder (12) is abutted against the second bearing (11).

7. The integrated motor and planetary reducer according to claim 6, characterized in that: An oil seal (13) is provided between the limiting shaft shoulder (12) and the outer shell (3), and the second bearing (11) is located between the oil seal (13) and the outer shell (3).

8. The integrated motor and planetary reducer according to claim 1, characterized in that: A positioning groove (14) is provided at one end of the connecting plate (17), and a positioning block (15) matching the positioning groove (14) is provided at one end of the motor (1) close to its output shaft (18), and the positioning block (15) is arranged in the positioning groove (14).

9. The integrated motor and planetary reducer according to claim 1, characterized in that: The connecting plate (17) and the motor (1), as well as the connecting plate (17) and the outer shell (3) are fixedly connected by screws (16).

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