A semi-direct drive transmission system

Abstract

The embodiment of the application discloses a kind of semi-direct drive transmission systems, including reducer and motor, reducer includes first connecting flange;Motor includes second connecting flange;Annular cavity formed between first connecting flange and second connecting flange;Cooling pipeline is installed in annular cavity;Water inlet and water outlet are communicated with cooling pipeline from the outside wall of second connecting flange and pass through to annular cavity.The transmission system can absorb the heat generated when the reducer rotates by the cooling pipeline arranged in the annular cavity formed between the first connecting flange of the reducer and the second connecting flange of the motor, prevent the heat generated when the reducer rotates from being transmitted to the motor through the first connecting flange and the second connecting flange, avoid heat conduction, temperature rise of motor, affect motor heat dissipation, improve the service life of motor;And the design of cooling pipeline can also reduce the temperature of lubricating oil in reducer, improve the reliability of transmission system.

Description

Technical Field

[0001] This application relates to the field of transmission system technology, and more specifically, to a semi-direct drive transmission system. Background Technology

[0002] A semi-direct drive transmission system consists of a reducer and a motor; specifically, the reducer's shaft is connected to the motor's central shaft. In existing semi-direct drive transmission systems, the reducer generates heat during rotation, which is transferred to the motor, causing its temperature to rise, affecting heat dissipation, and shortening its lifespan.

[0003] Therefore, in order to overcome the shortcomings of existing technologies, a new type of semi-direct drive transmission system is needed. Utility Model Content

[0004] The purpose of this invention is to provide a semi-direct drive transmission system to solve at least one of the above-mentioned technical problems.

[0005] To achieve at least one of the above objectives, this application adopts the following technical solution:

[0006] This application provides a semi-direct drive transmission system, including a reducer and a motor, wherein the reducer includes a first connecting flange and the motor includes a second connecting flange;

[0007] An annular cavity formed between the first connecting flange and the second connecting flange;

[0008] Cooling pipes installed in the annular cavity;

[0009] The inlet and outlet extend from the outer wall of the second connecting flange into the annular cavity and communicate with the cooling pipe.

[0010] Optionally, the cooling conduit includes a first annular water channel surrounding the annular cavity; and

[0011] A second annular waterway surrounds the outer wall of the first annular waterway and is connected to the first annular waterway; the inlet and the outlet are respectively connected to the second annular waterway.

[0012] The first annular waterway and the second annular waterway include a first connecting port and a second connecting port, the first connecting port being opposite to the inlet and the second connecting port being opposite to the outlet.

[0013] Optionally, the angle formed by the connecting line between the inlet and the center of the second connecting flange and the connecting line between the outlet and the center of the second connecting flange is 170° to 180°.

[0014] Optionally, the end of the motor connected to the second connecting flange includes a gear;

[0015] The first connecting flange has a connecting groove at its center, and a toothed ring is installed on the inner side wall of the connecting groove; the toothed ring is sleeved on the gear and meshes with the gear.

[0016] Optionally, the side of the first connecting flange near the motor includes an annular stepped structure;

[0017] The annular stepped structure includes a first stepped portion and a second stepped portion;

[0018] The first step portion is located on the side of the second step portion away from the connecting groove of the first connecting flange, and the step surface of the second step portion protrudes from the step surface of the first step portion;

[0019] The first stepped portion and the second stepped portion are connected by a connecting surface;

[0020] The cooling pipes are respectively attached to the step surface of the first step and the connecting surface;

[0021] The step surfaces of the first step and the second step are perpendicular to the connecting surface, respectively.

[0022] Optionally, the second connecting flange includes a through hole extending from one side of it near the reducer to the other side away from the reducer;

[0023] An annular notch is formed by recessing inward from the side surface of the second connecting flange near the reducer and through the inner wall of the through hole.

[0024] Optionally, a bearing for connecting the central shaft of the motor is provided in the through hole; and

[0025] First and second bearing caps for fixing the bearing in the through hole of the second connecting flange;

[0026] The first bearing cap includes a first connecting portion connected to the bottom surface of the annular notch, and a second connecting portion connected to the bearing; the second bearing cap includes a third connecting portion connected to the side surface of the second connecting flange away from the reducer, and a fourth connecting portion connected to the bearing.

[0027] Optionally, the annular notch, the step surface of the first step portion, the connecting surface, and the first connecting portion of the first bearing cap together form the annular cavity.

[0028] Optionally, a vent hole extends from the outer wall of the second connecting flange into the annular cavity.

[0029] Optionally, both the first and second annular waterways are formed from copper pipes.

[0030] The beneficial effects of this application are as follows:

[0031] To address the problems existing in current technologies, this application provides a direct drive transmission system. A cooling pipe installed in the annular cavity formed between the first connecting flange of the reducer and the second connecting flange of the motor can absorb the heat generated during reducer rotation, preventing the heat from being transferred to the motor through the first and second connecting flanges. This avoids heat conduction, prevents the motor temperature from rising, and improves motor heat dissipation, thus extending the motor's service life. Furthermore, the cooling pipe design also reduces the temperature of the lubricating oil in the reducer, improving the reliability of the transmission system. The inlet and outlet design allows for real-time replacement of the cooling water in the cooling pipe, ensuring the cooling pipe maintains a constant cooling temperature and continuously absorbs the heat generated by the reducer. Attached Figure Description

[0032] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0033] Figure 1 A longitudinal cross-sectional view of a semi-direct drive transmission system in one embodiment of this application is shown.

[0034] Figure 2 Show Figure 1 Enlarged view of section A.

[0035] Figure 3 A side view of a semi-direct drive transmission system in one embodiment of this application is shown. Detailed Implementation

[0036] In the following description, numerous specific details are set forth for illustrative purposes and to provide a comprehensive understanding of one or more embodiments. However, it will be apparent that these embodiments can also be implemented without these specific details.

[0037] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0038] It should also be noted that, in the description of this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] To address the problems existing in the prior art, one embodiment of this application provides a semi-direct drive transmission system, such as... Figure 1-3 As shown, the device includes a reducer 1 and a motor 2. The reducer 1 includes a first connecting flange 11; the motor 2 includes a second connecting flange 21; the first connecting flange 11 and the second connecting flange 21 are connected by a fastener; an annular cavity 3 is formed between the first connecting flange 11 and the second connecting flange 21; a cooling pipe is installed in the annular cavity 3; and an inlet 5 and an outlet 6 extend from the outer wall of the second connecting flange 21 through the annular cavity 3 and communicate with the cooling pipe.

[0040] In the above embodiments of this application, the cooling pipes provided in the annular cavity 3 formed between the first connecting flange 11 of the reducer 1 and the second connecting flange 21 of the motor 2 can absorb the heat generated when the reducer 1 rotates, preventing the heat generated when the reducer 1 rotates from being transferred to the motor 2 through the first connecting flange 11 and the second connecting flange 21. This avoids heat conduction, prevents the temperature of the motor 2 from rising, affects the heat dissipation of the motor 2, and improves the service life of the motor 2. Moreover, the design of the cooling pipes can also reduce the temperature of the lubricating oil in the reducer 1, improving the reliability of the transmission system. The design of the inlet 5 and outlet 6 allows for real-time replacement of the cold water in the cooling pipes, ensuring that the cooling pipes always maintain a certain cooling temperature and continuously absorb the heat generated by the reducer 1.

[0041] In one specific embodiment, the cooling pipe includes a first annular water channel 41 surrounding the annular cavity 3; and a second annular water channel 42 surrounding the outer wall of the first annular water channel 41 and communicating with the first annular water channel 41. The two annular water channels absorb the heat generated by the reducer 1 more effectively, ensuring that at least 90% of the heat generated by the reducer 1 is absorbed. In practical applications, the outer walls of the first annular water channel 41 and the second annular water channel 42 are fitted to the annular cavity 3 to further enhance the heat absorption capacity. Here, both the first annular water channel 41 and the second annular water channel 42 are made of copper tubing, but are not limited to copper tubing. Furthermore, the inlet 5 and the outlet 6 are respectively connected to the second annular water channel 42; a first connecting port and a second connecting port are included between the first annular water channel 41 and the second annular water channel 42, with the first connecting port opposite to the inlet 5 and the second connecting port opposite to the outlet 6. After cold water enters the second annular waterway 42 through the inlet 5, it can enter the first annular waterway 41 through the first connecting port. That is, cold water can enter the first annular waterway 41 and the second annular waterway 42. When the cold water flows to the position of the second connecting port and the outlet 6, the water in the first annular waterway 41 and the second annular waterway 42 can flow out to the outside through the outlet 6.

[0042] Specifically, the angle formed by the connecting line between the inlet 5 and the center of the second connecting flange 21 and the connecting line between the outlet 6 and the center of the second connecting flange 21 is 170° to 180°, preferably 180°. This results in a relatively large distance between the inlet 5 and the outlet 6. After entering the first annular water channel 41 and the second annular water channel 42 from the inlet 5, the cold water flows in two directions towards the outlet 6. The paths of the two flows are similar, allowing for uniform heat absorption and improving the cooling effect.

[0043] In one specific embodiment, a vent hole (not shown in the figure) extends from the outer wall of the second connecting flange 21 into the annular cavity 3. The design of the vent hole allows the annular cavity 3 to communicate with the outside, achieving equal air pressure with the external environment, and preventing malfunctions due to excessively high air pressure.

[0044] In one specific embodiment, the end of the motor 2 connected to the second connecting flange 21 includes a gear 23; the center of the first connecting flange 11 includes a connecting groove, and a gear ring is installed on the inner sidewall of the connecting groove; the gear ring is sleeved on the gear 23 and meshes with the gear 23. The connection between the motor 2 and the reducer 1 is achieved through the cooperation of the gear 23 and the gear ring.

[0045] In one specific embodiment, the side of the first connecting flange 11 near the motor 2 includes an annular stepped structure; the annular stepped structure includes a first stepped portion 111 and a second stepped portion 112; the first stepped portion 111 is located on the side of the second stepped portion 112 away from the connecting groove of the first connecting flange 11, and the stepped surface of the second stepped portion 112 protrudes from the stepped surface of the first stepped portion 111; the first stepped portion 111 and the second stepped portion 112 are connected by a connecting surface 113; the cooling pipe is respectively in contact with the stepped surface of the first stepped portion 111 and the connecting surface 113; the stepped surfaces of the first stepped portion 111 and the second stepped portion 112 are respectively perpendicular to the connecting surface 113. The design of the annular stepped structure not only reduces the volume of the first connecting flange 11, but also ensures that the maximum axial dimension of the first connecting flange 11 remains unchanged while providing space for the cooling pipe; the design of the cooling pipe being in contact with the stepped surface of the first stepped portion 111 and the connecting surface 113 improves the heat absorption effect of the cooling water channel.

[0046] In one specific embodiment, the second connecting flange 21 includes a through hole extending from one side near the reducer 1 to the other side away from the reducer 1; an annular notch is formed by recessing inward from the inner wall of the through hole on the surface of the second connecting flange 21 near the reducer 1. The design of the annular notch not only reduces the volume of the second connecting flange 21, but also ensures that the maximum axial dimension of the second connecting flange 21 remains unchanged while providing space for the cooling pipe.

[0047] In practical applications, the fastener is connected to the step surface of the first step portion 111 of the first connecting flange 11 and the side surface of the second connecting flange 21 near the reducer 1. The fastener can be the first bolt 7. The first bolt 7 is hidden to connect the first connecting flange 11 and the second connecting flange 21. The first bolt 7 is located on the side of the cooling pipe away from the central shaft 22 of the motor 2, that is, away from the rotating shaft of the transmission system.

[0048] In one specific embodiment, a bearing 24 for connecting the central shaft 22 of the motor 2 is provided in the through hole; and a first bearing 24 cover and a second bearing 24 cover for fixing the bearing 24 in the through hole of the second connecting flange 21; the first bearing 24 cover includes a first connecting part 25 connected to the bottom surface 211 of the annular notch, and a second connecting part 26 connected to the bearing 24; the second bearing 24 cover includes a third connecting part 27 connected to the side surface of the second connecting flange 21 away from the reducer 1, and a fourth connecting part 28 connected to the bearing 24. In this way, the first bearing 24 cover can be connected to both the second connecting flange 21 and the bearing 24, and the second bearing 24 cover can be connected to both the second connecting flange 21 and the bearing 24; that is, the bearing 24 can be connected in the through hole through the first bearing 24 cover and the second bearing 24 cover, so as to realize the rotation of the central shaft 22 of the motor 2. In practical applications, the second bolt 8 connects the first bearing 24 cover, the second connecting flange 21, and the second bearing 24 cover in sequence. The second bolt 8 is used to connect the first bearing 24 cover, the second connecting flange 21, and the second bearing 24 cover in a concealed manner.

[0049] In one specific embodiment, the annular notch, the stepped surface of the first stepped portion 111, and the connecting surface 113 enclose and form the annular cavity 3. That is, the annular cavity 3 is formed by the interlocking of notches formed by inward recesses on the side surfaces of the first connecting flange 11 and the second connecting flange 21 that are close to each other. Specifically, the portion formed by the stepped surface of the first stepped portion 111 and the connecting surface 113, together with the annular notch, forms the annular cavity 3. This can shorten the distance between the first connecting flange 11 and the second connecting flange 21, that is, shorten the distance between the motor 2 and the reducer 1, thereby shortening the length of the entire system in the axial direction of the motor 2.

[0050] Here, since the first connecting portion 25 of the first bearing 24 cover is located on the bottom surface 211 of the annular notch, the annular cavity 3 is actually formed by the annular notch, the stepped surface of the first stepped portion 111, the connecting surface 113, and the first connecting portion 25 of the first bearing 24 cover. The side of the first connecting portion 25 of the first bearing 24 cover away from the bottom surface 211 of the annular notch is connected to the second stepped portion 112.

[0051] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. All obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A semi-direct drive transmission system, comprising a reducer and a motor, characterized in that, The reducer includes a first connecting flange; the motor includes a second connecting flange; An annular cavity formed between the first connecting flange and the second connecting flange; Cooling pipes installed in the annular cavity; The inlet and outlet extend from the outer wall of the second connecting flange into the annular cavity and communicate with the cooling pipe.

2. The semi-direct drive transmission system according to claim 1, characterized in that, The cooling conduit includes a first annular water channel surrounding the annular cavity; and A second annular waterway surrounds the outer wall of the first annular waterway and is connected to the first annular waterway; the inlet and the outlet are respectively connected to the second annular waterway. The first annular waterway and the second annular waterway include a first connecting port and a second connecting port, the first connecting port being opposite to the inlet and the second connecting port being opposite to the outlet.

3. The semi-direct drive transmission system according to claim 1, characterized in that, The angle formed by the connecting line between the inlet and the center of the second connecting flange and the connecting line between the outlet and the center of the second connecting flange is 170° to 180°.

4. The semi-direct drive transmission system according to claim 1, characterized in that, The motor has a gear at one end connected to the second connecting flange; The first connecting flange has a connecting groove at its center, and a toothed ring is installed on the inner side wall of the connecting groove; the toothed ring is sleeved on the gear and meshes with the gear.

5. The semi-direct drive transmission system according to claim 4, characterized in that, The side of the first connecting flange near the motor includes an annular stepped structure; The annular stepped structure includes a first stepped portion and a second stepped portion; The first step portion is located on the side of the second step portion away from the connecting groove of the first connecting flange, and the step surface of the second step portion protrudes from the step surface of the first step portion; The first stepped portion and the second stepped portion are connected by a connecting surface; The cooling pipes are respectively attached to the step surface of the first step and the connecting surface; The step surfaces of the first step and the second step are perpendicular to the connecting surface, respectively.

6. The semi-direct drive transmission system according to claim 5, characterized in that, The second connecting flange includes a through hole extending from one side of it near the reducer to the other side away from the reducer; An annular notch is formed by recessing inward from the side surface of the second connecting flange near the reducer and through the inner wall of the through hole.

7. The semi-direct drive transmission system according to claim 6, characterized in that, A bearing for connecting the central shaft of the motor is provided in the through hole; and First and second bearing caps for fixing the bearing in the through hole of the second connecting flange; The first bearing cap includes a first connecting portion connected to the bottom surface of the annular notch, and a second connecting portion connected to the bearing; the second bearing cap includes a third connecting portion connected to the side surface of the second connecting flange away from the reducer, and a fourth connecting portion connected to the bearing.

8. The semi-direct drive transmission system according to claim 7, characterized in that, The annular notch, the step surface of the first step portion, the connecting surface, and the first connecting portion of the first bearing cover together form the annular cavity.

9. The semi-direct drive transmission system according to claim 1, characterized in that, A vent hole extends from the outer wall of the second connecting flange into the annular cavity.

10. The semi-direct drive transmission system according to claim 2, characterized in that, Both the first and second annular waterways are formed from copper pipes.

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