Rotating shaft and vehicle

Abstract

The utility model relates to the technical field of vehicle transmission equipment, and discloses a rotating shaft and a vehicle, the rotating shaft comprises a shaft body and a first oil pipe, the shaft body is provided with an oil supply channel, the first oil pipe is installed in the oil supply channel, and a first oil way is formed in the first oil pipe; a second oil way disconnected with the first oil way is formed between the inner side wall of the oil supply channel and the outer circumferential wall of the first oil pipe. Wherein the first oil way is used for communicating with a hydraulic oil way, and the second oil way is used for communicating with a cooling lubricating oil way. The vehicle comprises the transmission system, the transmission system comprises the rotating shaft, and the rotating shaft is integrated with the first oil way communicated with the hydraulic oil way and the second oil way communicated with the cooling lubricating oil way, so that the path length of the hydraulic oil way and the cooling lubricating oil way in the transmission system is shortened, and the number of oil supply pipelines in the transmission system is reduced; the complexity of the product structure in the transmission system is reduced, and the assembly of the transmission system is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle transmission equipment technical field, especially a kind of rotating shaft and vehicle. BACKGROUND

[0002] Currently in the transmission system of vehicle, hydraulic oil is usually pushed into clutch by oil pump outlet through hydraulic oil pipe and middle shell to realize the function of pushing clutch, cooling lubricating oil is entered into rotating shaft after oil cooler and middle shell, then rotating shaft rotates to throw cooling lubricating oil into clutch plate and bearing to realize cooling lubricating function;Transmission system has the problems of long path of hydraulic oil circuit and cooling lubricating oil circuit, complex product structure, high assembly requirement. SUMMARY

[0003] The utility model at least solves one of the technical problems in prior art. To this end, the utility model provides a rotating shaft, which is integrated with a first oil circuit in communication with a hydraulic oil circuit and a second oil circuit in communication with a cooling lubricating oil circuit, thereby shortening the path length of the hydraulic oil circuit and the cooling lubricating oil circuit in the transmission system, reducing the number of oil supply pipelines in the transmission system, reducing the complexity of the product structure in the transmission system, and facilitating the assembly of the transmission system.

[0004] The utility model further provides a vehicle comprising the rotating shaft.

[0005] According to the rotating shaft of the first aspect of the utility model, the rotating shaft comprises:

[0006] The shaft body is provided with an oil supply passage;

[0007] The first oil pipe is installed in the oil supply passage, a first oil circuit is formed in the first oil pipe, and a second oil circuit disconnected from the first oil circuit is formed between the inner side wall of the oil supply passage and the outer peripheral wall of the first oil pipe.

[0008] The first oil circuit is used to communicate with the hydraulic oil circuit, and the second oil circuit is used to communicate with the cooling lubricating oil circuit.

[0009] The rotating shaft according to the utility model has at least the following beneficial effects:

[0010] By integrating the first oil passage and the second oil passage in the rotating shaft, the path length of the hydraulic oil passage and the cooling lubricating oil passage in the transmission system can be shortened, the number of oil supply pipelines in the transmission system can be reduced, and the complexity of the product structure in the transmission system can be reduced, thereby facilitating the assembly of the transmission system.

[0011] According to some embodiments of the present application, the shaft body is further provided with a first oil outlet channel and a second oil outlet channel, the first oil outlet channel is in communication with the first oil passage, and the second oil outlet channel is in communication with the second oil passage.

[0012] The axial direction of the first oil outlet channel intersects the axial direction of the oil supply channel, and / or the axial direction of the second oil outlet channel intersects the axial direction of the oil supply channel.

[0013] According to some embodiments of the present application, the rotating shaft further comprises a first sealing member, which is arranged between the inner side wall of the oil supply channel and the outer peripheral wall of the first oil pipe to disconnect the first oil passage from the second oil passage.

[0014] According to some embodiments of the present application, the first oil pipe comprises a pipe body and a plurality of protruding portions spaced along the axial direction of the pipe body, and the first sealing member is arranged between adjacent protruding portions.

[0015] According to some embodiments of the present application, the oil supply channel comprises a first channel section on one side of the first sealing member and a second channel section on the other side of the first sealing member, the first oil passage is in communication with the first channel section, and the second oil passage is formed between the inner side wall of the second channel section and the outer peripheral wall of the first oil pipe.

[0016] The shaft body is further provided with a first oil outlet channel and a second oil outlet channel, the first oil outlet channel is in communication with the first channel section, and the second oil outlet channel is in communication with the second channel section.

[0017] According to some embodiments of the present application, the oil supply channel further comprises a transition section, the first channel section and the second channel section are in communication with two ends of the transition section respectively, and the first sealing member is arranged between the inner side wall of the transition section and the outer peripheral wall of the first oil pipe.

[0018] The inner diameter of the first channel section is smaller than the inner diameter of the transition section, and the inner diameter of the transition section is smaller than the inner diameter of the second channel section.

[0019] According to some embodiments of the utility model, the rotating shaft further comprises an adapter and a second oil pipe, the first oil pipe and the second oil pipe are connected through the adapter and communicate with each other, and the second oil pipe is used for communicating with the hydraulic oil circuit.

[0020] The first oil pipe is detachably connected with the adapter, and / or the second oil pipe is detachably connected with the adapter.

[0021] According to some embodiments of the utility model, the adapter has a first installation cavity and a second installation cavity which communicate with each other, an end of the first oil pipe is inserted into the first installation cavity, and an end of the second oil pipe is inserted into the second installation cavity.

[0022] The rotating shaft further comprises a second sealing element, the second sealing element is arranged between an inner side wall of the second installation cavity and an outer peripheral wall of the second oil pipe, so as to disconnect the first oil circuit and the second oil circuit.

[0023] According to some embodiments of the utility model, at least part of the adapter is located in the oil supply channel, an oil inlet channel is formed between an outer side wall of the adapter and an inner side wall of the oil supply channel, one end of the oil inlet channel communicates with the second oil circuit, and the other end is used for communicating with the cooling lubricating oil circuit.

[0024] The vehicle according to the second aspect embodiment of the utility model comprises a transmission system, and the transmission system comprises the rotating shaft. The rotating shaft of the embodiment can reduce the oil supply pipeline in the transmission system by integrating the first oil circuit and the second oil circuit, so that the structure of the transmission system is more compact. Since the transmission system comprises the rotating shaft, the vehicle also has all the beneficial effects of the rotating shaft, which will not be described here.

[0025] Additional aspects and advantages of the utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0026] The utility model will be further described below in combination with the drawings and embodiments, wherein:

[0027] Figure 1 It is a sectional view of the rotating shaft of the first aspect embodiment of the utility model;

[0028] Figure 2 It is Figure 1 It is an enlarged view of position A in figure 2;

[0029] Figure 3 It is Figure 1 It is an enlarged view of position B in figure 2;

[0030] Figure 4For Figure 3 Cross-sectional view of the adapter.

[0031] Reference signs:

[0032] Shaft body 100, oil supply channel 110, first channel segment 111, second channel segment 112, transition segment 113, third channel segment 114, first oil path 120, second oil path 130, first oil outlet channel 140, second oil outlet channel 150;

[0033] First oil pipe 200, first sealing member 210, protruding portion 220, pipe body 230;

[0034] Adapter 300, first mounting cavity 310, second mounting cavity 320, oil inlet channel 330, oil passing groove 340;

[0035] Second oil pipe 400, second sealing member 410;

[0036] Hydraulic oil path 500;

[0037] Cooling lubricating oil path 600. DETAILED DESCRIPTION

[0038] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the present application, and cannot be understood as a limitation of the present application.

[0039] In the description of the present application, it is understood that the orientation description, such as the orientation or position relationship indicated by up, down, etc. is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application.

[0040] In the description of the present application, the plural means more than two. If there is a description of the first, the second is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0041] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application according to the specific content of the technical scheme.

[0042] The rotating shaft of the first aspect embodiment of the present application is applied to a transmission system with a hydraulic oil circuit 500 and a cooling lubricating oil circuit 600, for example, an input shaft of an engine, and a clutch is installed on the outer periphery of the rotating shaft. Referring to Figure 1 As shown, the rotating shaft includes a shaft body 100 and a first oil pipe 200, the shaft body 100 is provided with an oil supply channel 110, and the first oil pipe 200 is installed in the oil supply channel 110 to separate the oil supply channel 110 into a first oil circuit 120 and a second oil circuit 130, the first oil circuit 120 is formed in the first oil pipe 200, and the second oil circuit 130 is formed between the inner side wall of the oil supply channel 110 and the outer peripheral wall of the first oil pipe 200; the first oil circuit 120 is used to communicate with the hydraulic oil circuit 500, and is usually used to supply oil to the chamber such as the piston cavity of the clutch installed on the outer periphery of the rotating shaft; the second oil circuit 130 is used to communicate with the cooling lubricating oil circuit 600, and is usually used to supply oil to the devices such as the clutch plate and the bearing of the clutch installed on the outer periphery of the rotating shaft. Referring to Figure 1 As shown, in this embodiment, the rotating shaft integrates the first oil circuit 120 and the second oil circuit 130 in the shaft body 100, which can reduce the pipelines in the transmission system, make the internal structure of the transmission system more compact, and reduce the volume of the transmission system; at the same time, the integrated first oil circuit 120 and second oil circuit 130 shorten the overall path length of the hydraulic oil circuit 500 and the cooling lubricating oil circuit 600, which can reduce the oil loss and reduce the risk of oil leakage; in addition, since the first oil circuit 120 is arranged in the second oil circuit 130, and the second oil circuit 130 communicates with the cooling lubricating oil circuit 600, the cooling lubricating oil in the second oil circuit 130 can also be used to cool the hydraulic oil in the first oil circuit 120.

[0043] In the embodiments of the present application, the rotating shaft also has a first oil outlet channel 140 and a second oil outlet channel 150, the first oil circuit 120 communicates with the first oil outlet channel 140, and the second oil circuit 130 communicates with the second oil outlet channel 150, the hydraulic oil of the hydraulic oil circuit 500 enters the first oil outlet channel 140 through the first oil circuit 120, and then supplies oil to the chamber such as the piston cavity of the clutch through the first oil outlet channel 140; the lubricating oil transported in the cooling lubricating oil circuit 600 enters the second oil outlet channel 150 through the second oil circuit 130, and then supplies oil to the devices such as the clutch plate and the bearing of the clutch through the second oil outlet channel 150. Referring to Figure 1 As shown, the first oil outlet channel 140 and the second oil outlet channel 150 are both arranged in the shaft body 100, so that the external pipelines can be reduced, and the internal structure of the transmission system is more compact. For example, Figure 1 In this embodiment, the number of first oil outlet channels 140 and the number of second oil outlet channels 150 are not limited, and can be set according to the actual situation of the transmission system in other embodiments.

[0044] When the rotating shaft further has the first oil outlet channel 140 and the second oil outlet channel 150, in the embodiment of the present application, the axial direction of the first oil outlet channel 140 intersects the axial direction of the oil supply channel 110, for example, the axial direction of the first oil outlet channel 140 is perpendicular to the axial direction of the oil supply channel 110, that is, the extension direction of the first oil outlet channel 140 is the radial direction of the shaft body 100. In other embodiments, the axial direction of the second oil outlet channel 150 intersects the axial direction of the oil supply channel 110, for example, the axial direction of the second oil outlet channel 150 is perpendicular to the axial direction of the oil supply channel 110, that is, the extension direction of the second oil outlet channel 150 is the radial direction of the shaft body 100. When the rotating shaft is the input shaft of the engine, the shaft body 100 rotates around its own axis during operation. In the present embodiment, the axial direction of the first oil outlet channel 140 and / or the second oil outlet channel 150 is arranged to intersect the axial direction of the oil supply channel 110, so that the centrifugal force generated when the shaft body 100 rotates around its own axis can make the hydraulic oil in the first oil outlet channel 140 more easily enter the piston cavity and other chambers of the clutch, and / or make the lubricating oil in the second oil outlet channel 150 more easily enter the clutch plate, bearing and other devices of the clutch. Referring to Figure 1 In the present embodiment, the axial direction of the first oil outlet channel 140 intersects the axial direction of the oil supply channel 110, and the axial direction of the second oil outlet channel 150 intersects the axial direction of the oil supply channel 110, so that the oil in the first oil outlet channel 140 and the second oil outlet channel 150 is more easily delivered.

[0045] It should be noted that the hydraulic oil and the lubricating oil in the transmission system cannot be mixed, so the first oil passage 120 and the second oil passage 130 separated by the first oil pipe 200 cannot be communicated; in order to completely disconnect the first oil passage 120 and the second oil passage 130, referring to Figure 1 In the present embodiment, the central axis of the first oil pipe 200 penetrates through, and the first end of the first oil pipe 200 in the length direction is sealingly connected with the shaft body 100, so that the first oil passage 120 and the second oil passage 130 are arranged inside and outside the first oil pipe 200 respectively, and both ends of the first oil pipe 200 in the length direction are sealingly connected, thus ensuring that the first oil passage 120 and the second oil passage 130 are completely disconnected, and preventing the hydraulic oil and the lubricating oil in the transmission system from being mixed.

[0046] As can be seen from the above, the shaft body 100 rotates around its own axis during operation. In order to facilitate the communication of the first oil passage 120 with the hydraulic oil passage 500 and the communication of the second oil passage 130 with the cooling lubricating oil passage 600, and to facilitate the delivery of the oil in the first oil outlet channel 140 and the second oil outlet channel 150, in the present embodiment, the first oil pipe 200 is coaxially arranged with the shaft body 100, and the oil supply channel 110 is arranged at the central position of the shaft body 100.

[0047] To realize the sealed connection between the first end of the first oil pipe 200 in the length direction and the shaft body 100, the first oil pipe 200 in the embodiment is provided with a first sealing member 210, which is arranged between the inner side wall of the oil supply channel 110 and the outer peripheral wall of the first oil pipe 200 to disconnect the first oil passage 120 and the second oil passage 130. Referring to Figure 2 , it is shown that the first oil pipe 200 includes a pipe body 230 and a plurality of protruding portions 220 distributed axially along the pipe body 230, and the first sealing member 210 is arranged between adjacent protruding portions 220. The first sealing member 210 can be a sealing ring or the like, and the number of sealing rings and the number of protruding portions 220 can be flexibly set according to actual conditions. Figure 2 In the embodiment shown, the first end of the first oil pipe 200 in the length direction is provided with two radially protruding protruding portions 220, and the two protruding portions 220 are arranged in the axial direction of the first oil pipe 200. The first sealing member 210 is arranged between the two protruding portions 220. In some embodiments, the protruding portion 220 can be an integral structure connected with the first oil pipe 200, for example Figure 2 , it is shown that the protruding portion 220 is formed by the pipe body 230 of the first oil pipe 200 protruding radially, and the protruding portion 220 connected with the pipe body 230 as an integral structure has high structural strength and is not easy to deform, thereby ensuring the stability of the first sealing member 210 and further ensuring that the first oil passage 120 and the second oil passage 130 are completely disconnected. In other embodiments, the protruding portion 220 can also be connected with the pipe body 230 by welding, bonding or the like, which has low processing difficulty and manufacturing cost.

[0048] Referring to Figure 1 , it is shown that the first oil passage 120 in the embodiment is in communication with the first channel section 111, and the aforementioned first oil outlet channel 140 is also in communication with the first channel section 111, that is, the hydraulic oil in the first oil passage 120 first enters the first channel section 111, and then enters the first oil outlet channel 140 through the first channel section 111. The first channel section 111 can play a role of oil storage and buffering to avoid the generation of bubbles in the hydraulic oil entering the first oil outlet channel 140. The second oil outlet channel 150 in the embodiment is in communication with the second channel section 112, and Figure 1 , for example, a plurality of second oil outlet channels 150 are provided, and the plurality of second oil outlet channels 150 are all in communication with the second channel section 112. In specific embodiments, the plurality of second oil outlet channels 150 can be arranged circumferentially or axially along the axis of the shaft body 100 according to actual conditions to supply lubricating oil to different equipment.

[0049] In the embodiments of the present application, referring to Figure 2 , Figure 3The oil supply channel 110 includes a first channel section 111, a second channel section 112, and a transition section 113, which is arranged between the first channel section 111 and the second channel section 112; before the first oil pipe 200 is installed, the first channel section 111 and the second channel section 112 are in communication through the transition section 113, the first end of the first oil pipe 200 in the length direction is inserted into the transition section 113, and the transition section 113 is sealingly connected through the first sealing member 210, thereby cutting off the communication between the first channel section 111 and the second channel section 112.

[0050] Referring to Figure 1 In the embodiment, the inner diameter of the first channel section 111 is smaller than the inner diameter of the transition section 113, and the inner diameter of the transition section 113 is smaller than the inner diameter of the second channel section 112; on the one hand, it is convenient for the first oil pipe 200 to be inserted from the end close to the second channel section 112, and on the other hand, it also enables a second oil passage 130 to be formed between the outer side wall of the first oil pipe 200 and the inner side wall of the second channel section 112.

[0051] In the embodiment of the present application, referring to Figure 1 、 Figure 3 The first end of the first oil pipe 200 in the length direction is sealingly connected with the transition section 113; the second end of the first oil pipe 200 in the length direction is sealingly connected with the hydraulic oil passage 500 through the adapter 300 and the second oil pipe 400, the first oil pipe 200 and the second oil pipe 400 are connected through the adapter 300 and are in communication with each other, and the second oil pipe 400 is used to communicate with the hydraulic oil passage 500; wherein the first oil pipe 200 and the adapter 300 are detachably connected, and / or the second oil pipe 400 and the adapter 300 are detachably connected. The detachable connection of the first oil pipe 200 and the adapter 300 facilitates the separate replacement of the first oil pipe 200 or the adapter 300, thereby reducing maintenance costs; at the same time, the first oil pipe 200 and the adapter 300 are two independent components, which are easier to process, thereby reducing manufacturing costs. Similarly, the detachable connection of the second oil pipe 400 and the adapter 300 facilitates the separate replacement of the second oil pipe 400, thereby reducing the maintenance costs and manufacturing costs of the second oil pipe 400.

[0052] It is conceivable that the connection between the first oil pipe 200 and the adapter 300 can also be an integrated structure, or connected through welding, bonding, interference fit, etc.; the integrated structure of the first oil pipe 200 and the adapter 300 has higher structural strength, and there is no gap at the connection between the first oil pipe 200 and the adapter 300, so there is no risk of oil leakage. Similarly, the second oil pipe 400 and the adapter 300 can also be connected as an integrated structure, or connected through welding, bonding, interference fit, etc.

[0053] When the rotating shaft further includes the adapter 300 and the second oil pipe 400, for example, referring toFigure 3 As shown, the adapter 300 has a first installation cavity 310 and a second installation cavity 320 which are in communication with each other, the end of the first oil pipe 200 is inserted into the first installation cavity 310, and the end of the second oil pipe 400 is inserted into the second installation cavity 320; the rotating shaft further comprises a second sealing member 410 which is arranged between the inner side wall of the second installation cavity 320 and the outer peripheral wall of the second oil pipe 400 to disconnect the first oil passage 120 and the second oil passage 130; the second sealing member 410 can be a sealing ring or the like structure.

[0054] When the rotating shaft further comprises the adapter 300, in the embodiment of the present application, at least part of the adapter 300 is located in the oil supply passage 110, and the oil supply passage 110 is used to accommodate at least part of the adapter 300, which can reduce the length of the rotating shaft, for example, as shown in Figure 3 As shown, the entire adapter 300 is located in the oil supply passage 110. In order to enable the cooling lubricating oil to flow into the second oil passage 130, an oil inlet passage 330 is formed between the outer side wall of the adapter 300 and the inner side wall of the oil supply passage 110, one end of the oil inlet passage 330 is in communication with the second oil passage 130, and the other end is used to communicate with the cooling lubricating oil passage 600. For example, as shown in Figure 1 As shown, the oil supply passage 110 further comprises a third passage section 114, the second passage section 112 is arranged between the transition section 113 and the third passage section 114, and the inner diameter of the third passage section 114 is not less than the inner diameter of the second passage section 112, thereby facilitating the installation of the first oil pipe 200 and the adapter 300. For example, as shown in Figure 3 As shown, the adapter 300 is at least partially installed in the third passage section 114; if the axial length of the shaft body 100 is sufficient, the axial length of the third passage section 114 can be set to be not less than the axial length of the adapter 300, so as to facilitate the complete insertion of the adapter 300 into the third passage section 114, and make the structure of the transmission system more compact; if the axial length of the shaft body 100 is insufficient, resulting in that the axial length of the third passage section 114 is less than the axial length of the adapter 300, the adapter 300 can be arranged to be only partially inserted into the third passage section 114, and the part of the adapter 300 which extends out of the oil supply passage 110 can be connected with the shaft body 100 through buckles, clasps or the like connectors. After the adapter 300 is connected with the shaft body 100, the axial movement of the first oil pipe 200 can be limited, thereby avoiding the first end of the first oil pipe 200 in the length direction from being separated from the transition section 113, resulting in the leakage of the hydraulic oil in the first oil passage 120.

[0055] In the embodiments of the present application, if the diameter of the adapter 300 is smaller than the inner diameter of the third channel segment 114, the outer side wall of the adapter 300 is not in contact with the inner side wall of the third channel segment 114, and the spacing between the outer side wall of the adapter 300 and the inner side wall of the third channel segment 114 forms the oil inlet channel 330; if the diameter of the adapter 300 is substantially equal to the inner diameter of the third channel segment 114, and the adapter 300 is connected with the third channel segment 114, for example, the adapter 300 is connected with the third channel segment 114 by threaded connection or interference fit, an oil groove 340 can be arranged on the outer peripheral wall of the adapter 300 to form the oil inlet channel 330 with the inner side wall of the third channel segment 114, as shown in FIG. 13. Figure 4 The cross-sectional shape and size of the oil groove 340 are not limited in the embodiments, and the number of the oil groove 340 can also be arranged according to actual conditions. The oil groove 340 can be arranged on the outer peripheral wall of the adapter 300, as shown in FIG. 13, or can be arranged on the inner side wall of the third channel segment 114 in actual production. Figure 4 The cross-sectional shape and size of the oil groove 340 are not limited in the embodiments, and the number of the oil groove 340 can also be arranged according to actual conditions. The oil groove 340 can be arranged on the outer peripheral wall of the adapter 300, as shown in FIG. 13, or can be arranged on the inner side wall of the third channel segment 114 in actual production.

[0056] The vehicle of the second aspect of the present application comprises the transmission system, and the transmission system comprises the rotating shaft described above. The rotating shaft of the present embodiment can reduce the oil supply pipeline in the transmission system by integrating the first oil passage 120 and the second oil passage 130, so that the structure of the transmission system is more compact. The transmission system also has all the beneficial effects of the rotating shaft because it comprises the rotating shaft described above. The vehicle of the present embodiment can be a private car, such as a sedan, an SUV, an MPV, or a pickup truck, etc. The vehicle can be an operating vehicle, such as a minivan, a bus, a small truck, or a large trailer, etc. The vehicle can be a gasoline car or a new energy car. When the vehicle is a new energy car, it can be a hybrid car or a pure electric car.

[0057] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description 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. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present specification.

[0058] The embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the present application.

Claims

1. A rotating shaft, applied in a transmission system having hydraulic oil circuits and cooling / lubricating oil circuits, characterized in that, include: The shaft body is equipped with an oil supply channel; A first oil pipe is installed in the oil supply channel, forming a first oil passage, and a second oil passage, disconnected from the first oil passage, is formed between the inner sidewall of the oil supply channel and the outer peripheral wall of the first oil pipe. The first oil circuit is used to connect with the hydraulic oil circuit, and the second oil circuit is used to connect with the cooling and lubrication oil circuit.

2. The rotating shaft according to claim 1, characterized in that: The shaft body is also provided with a first oil outlet channel and a second oil outlet channel, the first oil outlet channel being connected to the first oil passage and the second oil outlet channel being connected to the second oil passage; The axial direction of the first oil outlet channel intersects the axial direction of the oil supply channel; and / or, the axial direction of the second oil outlet channel intersects the axial direction of the oil supply channel.

3. The rotating shaft according to claim 1, characterized in that: The rotating shaft also includes a first seal, which is disposed between the inner wall of the oil supply channel and the outer peripheral wall of the first oil pipe to disconnect the first oil passage from the second oil passage.

4. The rotating shaft according to claim 3, characterized in that: The first oil pipe includes a pipe body and a plurality of protrusions spaced apart along the axial direction of the pipe body, and the first sealing element is installed between adjacent protrusions.

5. The rotating shaft according to claim 3, characterized in that: The oil supply channel includes a first channel section located on one side of the first seal and a second channel section located on the other side of the first seal. The first oil passage is connected to the first channel section, and the second oil passage is formed between the inner wall of the second channel section and the outer peripheral wall of the first oil pipe. The shaft body is also provided with a first oil outlet channel and a second oil outlet channel, the first oil outlet channel being connected to the first channel segment, and the second oil outlet channel being connected to the second channel segment.

6. The rotating shaft according to claim 5, characterized in that: The oil supply channel further includes a transition section, wherein the first channel section and the second channel section are respectively connected to both ends of the transition section, and the first sealing element is disposed between the inner side wall of the transition section and the outer peripheral wall of the first oil pipe; Wherein, the inner diameter of the first channel segment is smaller than the inner diameter of the transition segment, and the inner diameter of the transition segment is smaller than the inner diameter of the second channel segment.

7. The rotating shaft according to claim 1, characterized in that: The rotating shaft also includes an adapter and a second oil pipe. The first oil pipe and the second oil pipe are connected and communicate with each other through the adapter. The second oil pipe is used to communicate with the hydraulic oil circuit. Wherein, the first oil pipe is detachably connected to the adapter, and / or the second oil pipe is detachably connected to the adapter.

8. The rotating shaft according to claim 7, characterized in that: The adapter has a first mounting cavity and a second mounting cavity that are interconnected. The end of the first oil pipe is inserted into the first mounting cavity, and the end of the second oil pipe is inserted into the second mounting cavity. The rotating shaft also includes a second seal, which is disposed between the inner wall of the second mounting cavity and the outer peripheral wall of the second oil pipe to disconnect the first oil passage from the second oil passage.

9. The rotating shaft according to claim 7, characterized in that: At least a portion of the adapter is located within the oil supply channel, and an oil inlet channel is formed between the outer side wall of the adapter and the inner side wall of the oil supply channel. One end of the oil inlet channel is connected to the second oil circuit, and the other end is used to connect to the cooling and lubricating oil circuit.

10. A vehicle, characterized in that: It includes a transmission system, which includes the rotating shaft as described in any one of claims 1 to 9.

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