Housing structure, driving system, and vehicle

Abstract

A housing structure, a driving system and a vehicle. The housing structure comprises a transmission mechanism mounting cavity (101) and a lubricating oil passage (102), wherein a cavity wall of the transmission mechanism mounting cavity (101) is provided with a plurality of bearing mounting holes (103); and the lubricating oil passage (102) comprises a branch oil passage, which is configured to be in communication with at least one of the bearing mounting holes (103).

Description

A shell structure, a driving system and a vehicle

[0001] Cross-reference to related background

[0002] The present application is based on and claims priority to Chinese Patent Application No. 202411111105.4, filed on August 13, 2024, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The present disclosure relates to the technical field of vehicles, in particular to a shell structure, a driving system and a vehicle. BACKGROUND

[0004] In related power generation driving systems, a shell shared by a motor and a speed reducer is generally adopted. Lubrication of the speed reducer and the motor is separated.

[0005] In related technologies, the speed reducer usually relies on the gear ring to stir the oil to achieve lubrication. The rotation of the gear ring stirs the oil and brings the oil to the oil guide plate or the oil blocking rib, and the oil provides lubrication for the bearings of the speed reducer under the guidance of the oil guide plate or the oil blocking rib. However, in some special working conditions, the passive lubrication mode relying on the gear ring to stir the oil may cause insufficient lubrication of the bearings. SUMMARY

[0006] One purpose of the present disclosure is to provide a shell structure, at least part of the bearings of which can be fully lubricated.

[0007] To achieve this purpose, the present disclosure adopts the following technical solutions:

[0008] A shell structure is provided, comprising a speed change mechanism mounting cavity and a lubricating oil path, a cavity wall of the speed change mechanism mounting cavity is provided with a plurality of bearing mounting holes, and the lubricating oil path comprises a branch oil path, and the branch oil path is arranged in communication with at least one of the bearing mounting holes.

[0009] In some embodiments, the bearing mounting holes comprise upper bearing mounting holes and lower bearing mounting holes, and the branch oil path is arranged in communication with at least the upper bearing mounting holes.

[0010] In some embodiments, the shell structure comprises a first shell and a spacer arranged oppositely along a first direction; wherein,

[0011] The first shell is provided with a first branch oil path, the spacer is provided with a second branch oil path, the upper bearing mounting holes comprise first upper bearing mounting holes provided on the first shell and second upper bearing mounting holes provided on the spacer, the first branch oil path is arranged in communication with the first upper bearing mounting holes, and the second branch oil path is arranged in communication with the second upper bearing mounting holes.

[0012] In some embodiments, the bearing mounting holes further comprise a first intermediate bearing mounting hole disposed on the first housing, and the lower bearing mounting hole comprises a first lower bearing mounting hole disposed on the first housing; wherein,

[0013] At least one of the first lower bearing mounting hole and the first intermediate bearing mounting hole is in communication with the branch oil passage.

[0014] In some embodiments, the first branch oil passage is disposed on the first housing along a second direction away from a side of the first upper bearing mounting hole facing the first intermediate bearing mounting hole, wherein the first direction and the second direction are perpendicular to each other.

[0015] In some embodiments, the branch oil passage further comprises a third branch oil passage disposed on the first housing, the third branch oil passage being in communication with the first lower bearing mounting hole, and the first intermediate bearing mounting hole being in communication with the first upper bearing mounting hole.

[0016] In some embodiments, the lubricating oil passage further comprises a main oil passage, the main oil passage comprising a first oil outlet and a second oil outlet, the first oil outlet being in communication with the first branch oil passage, and the second oil outlet being in communication with the third branch oil passage.

[0017] In some embodiments, the first oil outlet is in communication with the first branch oil passage through the second branch oil passage.

[0018] In some embodiments, the bearing mounting holes further comprise a second intermediate bearing mounting hole disposed on the spacer, and the second branch oil passage is in communication with the second upper bearing mounting hole and the second intermediate bearing mounting hole, respectively.

[0019] In some embodiments, the second branch oil passage comprises a first oil passage and a second oil passage disposed at an angle, the first oil passage being located on a side of the second upper bearing mounting hole away from the second intermediate bearing mounting hole along a second direction, and the second oil passage being located on a same side of the second upper bearing mounting hole and the second intermediate bearing mounting hole along a third direction, the first oil passage being in communication with the second upper bearing mounting hole, and the second oil passage being in communication with the second intermediate bearing mounting hole, wherein the first direction, the second direction and the third direction are perpendicular to each other.

[0020] In some embodiments, the first housing or the spacer is provided with an oil injection passage in communication with the lubricating oil passage, an oil injection port of the oil injection passage being disposed towards a gear pair.

[0021] In some embodiments, the housing structure further comprises a second housing, the spacer is arranged between the first housing and the second housing along the first direction, the lower bearing mounting hole comprises a second lower bearing mounting hole arranged on the second housing, a motor mounting cavity is formed between the first housing and the second housing, and the branch oil path further comprises a fourth branch oil path arranged on the second housing, the fourth branch oil path comprises a third oil path and a fourth oil path, the third oil path, the motor mounting cavity, the fourth oil path and the second lower bearing mounting hole are sequentially communicated.

[0022] Another object of the present disclosure is to provide a drive system comprising a transmission mechanism and the housing structure according to any one of the above.

[0023] In some embodiments, the drive system further comprises a motor and / or a generator arranged in the housing structure.

[0024] Another object of the present disclosure is to provide a vehicle comprising a frame and the drive system according to the above.

[0025] The present disclosure achieves at least the following beneficial effects:

[0026] The housing structure provided by the present disclosure pumps oil into the branch oil path by the oil pump, and supplies the branch oil path to one or more bearing mounting holes in the transmission mechanism mounting cavity, so as to achieve active lubrication. Even in special working conditions, the bearings in the bearing mounting holes communicated with the branch oil path can also be fully lubricated by the active oil supply mode of the branch oil path.

[0027] The drive system provided by the present disclosure can fully lubricate the bearings supporting the transmission mechanism through the design of the housing structure, effectively improve the service life of the drive system, and make the drive system usable in special environments.

[0028] The vehicle provided by the present disclosure can be used in special environments through the arrangement of the drive system. BRIEF DESCRIPTION OF DRAWINGS

[0029] FIG. 1 is an exploded view of the housing structure provided by the embodiment of the present disclosure;

[0030] FIG. 2 is a structural schematic view of the first housing provided by the embodiment of the present disclosure;

[0031] FIG. 3 is a partial structural schematic view of the first housing provided by the embodiment of the present disclosure;

[0032] FIG. 4 is a partial structural schematic view of the housing structure provided by the embodiment of the present disclosure;

[0033] Fig. 5 is a partial structure sectional view of a housing structure according to an embodiment of the present disclosure;

[0034] Fig. 6 is a partial structure sectional view of a housing structure according to an embodiment of the present disclosure;

[0035] Fig. 7 is a partial structure sectional view of a housing structure of a spacer according to an embodiment of the present disclosure;

[0036] Fig. 8 is a partial structure sectional view of a housing structure according to an embodiment of the present disclosure.

[0037] In the drawings: 101, gear mechanism mounting cavity; 102, lubricating oil path; 103, bearing mounting hole; 104, motor mounting cavity; 200, first housing; 201, first branch oil path; 202, third branch oil path; 210, first upper bearing mounting hole; 220, first lower bearing mounting hole; 230, first intermediate bearing mounting hole; 300, second housing; 301, main oil path; 302, fourth oil path; 310, second lower bearing mounting hole; 400, spacer; 401, second branch oil path; 4011, first oil path; 4012, second oil path; 402, first oil injection oil path; 403, second oil injection oil path; 410, second upper bearing mounting hole; 420, second intermediate bearing mounting hole; 500, first oil pipe. DETAILED DESCRIPTION

[0038] The present disclosure will be further described below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present disclosure, but not to limit the present disclosure. In addition, it should be noted that, for the purpose of description, only the parts related to the present disclosure are shown in the drawings, rather than all the structures.

[0039] In the description of the present disclosure, unless explicitly defined and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrated; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0040] In the present disclosure, unless explicitly specified and limited, the first feature is "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "over" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature "under", "below" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0041] In the description of the embodiments of the present disclosure, the terms "upper", "lower", "right", "left", and the like, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present disclosure. In addition, the terms "first" and "second" are only used to distinguish in the description, and have no special meaning.

[0042] Referring to FIGS. 1-8, the present disclosure provides a housing structure, which includes a transmission mechanism mounting cavity 101 and a lubricating oil path 102, the cavity wall of the transmission mechanism mounting cavity 101 is provided with a plurality of bearing mounting holes 103, and the lubricating oil path 102 includes a branch oil path which is arranged in communication with at least one bearing mounting hole 103.

[0043] The transmission mechanism mounting cavity 101 is used to mount a transmission mechanism (not shown), and the bearings supporting the shaft systems of the transmission mechanism can be arranged in the corresponding bearing mounting holes 103. The transmission mechanism can be a speed reducer.

[0044] In the present disclosure, the housing structure can pump oil into the branch oil path by an oil pump, and the branch oil path supplies one or more bearing mounting holes 103 in the transmission mechanism mounting cavity 101, so as to achieve active lubrication. Even under special working conditions, the bearings in the bearing mounting holes 103 in communication with the branch oil path can also be fully lubricated by the active oil supply mode of the branch oil path. In addition, by arranging the lubricating oil path 102, the number of lubricating accessories in the transmission mechanism mounting cavity 101 can be reduced, the internal space of the transmission mechanism mounting cavity 101 can be saved, the assembly process flow of the drive system can be shortened, and the production cost can be reduced.

[0045] In the embodiment of the present disclosure, the shell structure further comprises a main oil passage 301 arranged in communication with the branch oil passages, and an oil pump is arranged in the transmission mechanism mounting cavity 101 to pump oil into the main oil passage 301, and the oil in the main oil passage 301 is supplied to the corresponding one or more bearing mounting holes 103 through the branch oil passages, that is, the oil pump can lubricate all the bearings in the bearing mounting holes 103 connected with the branch oil passages.

[0046] In some embodiments, an oil pump (not shown) can be arranged in the transmission mechanism mounting cavity 101 to pump oil in the transmission mechanism mounting cavity 101 into the main oil passage 301.

[0047] In the embodiment of the present disclosure, the bearing mounting hole 103 comprises an upper bearing mounting hole and a lower bearing mounting hole, and the branch oil passage is arranged in communication with at least the upper bearing mounting hole. In the existing power generation driving system, under some special working conditions, it is difficult for the gear ring to stir the oil to the oil guide plate or oil blocking rib at a high position, so the lubrication effect of the upper bearing in the existing power generation driving system is poor compared with the lower bearing. In the embodiment of the present disclosure, the upper bearing mounting hole is located above the lower bearing mounting hole, and the bearing in the upper bearing mounting hole is actively supplied with oil through the branch oil passage, so that it can be fully lubricated. In addition, the lower bearing mounting hole can be lubricated by the active lubrication mode of being supplied with oil through the branch oil passage, or by the passive lubrication mode, and the active lubrication effect of the lower bearing mounting hole is better than the passive lubrication effect.

[0048] Specifically, the upper bearing mounting hole comprises a first upper bearing mounting hole 210 and a second upper bearing mounting hole 410, and the lower bearing mounting hole comprises a first lower bearing mounting hole 220 and a second lower bearing mounting hole 310. The bearings in the first upper bearing mounting hole 210 and the second upper bearing mounting hole 410 jointly support the input shaft (not shown) of the transmission mechanism, and the bearings in the first lower bearing mounting hole 220 and the second lower bearing mounting hole 310 jointly support the output shaft (not shown) of the transmission mechanism; or the bearings in the first upper bearing mounting hole 210 and the second upper bearing mounting hole 410 jointly support the output shaft, and the bearings in the first lower bearing mounting hole 220 and the second lower bearing mounting hole 310 jointly support the input shaft.

[0049] In some embodiments, the bearing mounting hole 103 can further comprise an intermediate bearing mounting hole located between the upper bearing mounting hole and the lower bearing mounting hole. The upper bearing mounting hole can be located above the intermediate bearing mounting hole and the lower bearing mounting hole, and the intermediate bearing mounting hole is located above the lower bearing mounting hole. In the embodiment of the present disclosure, the bearing in the intermediate bearing mounting hole can be lubricated by the active lubrication mode of being supplied with oil through the branch oil passage, or by the passive lubrication mode.

[0050] Specifically, the intermediate bearing mounting holes include a first intermediate bearing mounting hole 230 and a second intermediate bearing mounting hole 420. The bearings in the first intermediate bearing mounting hole 230 and the second intermediate bearing mounting hole 420 jointly support an intermediate shaft (not shown) of the transmission mechanism.

[0051] In some embodiments, the transmission mechanism installed in the transmission mechanism mounting cavity 101 can include at least one intermediate shaft, and the corresponding first intermediate bearing mounting hole 230 and the second intermediate bearing mounting hole 420 are respectively provided with at least one.

[0052] In the embodiments of the present disclosure, referring to FIG. 1, the shell structure includes a first shell 200 and a spacer 400 oppositely arranged along a first direction; the first shell 200 is provided with a first branch oil way 201, the spacer 400 is provided with a second branch oil way 401, the first upper bearing mounting hole 210 is arranged on the first shell 200, the second upper bearing mounting hole 410 is arranged on the spacer 400, the first branch oil way 201 is arranged in communication with the first upper bearing mounting hole 210, and the second branch oil way 401 is arranged in communication with the second upper bearing mounting hole 410. The a direction in the figure can be the first direction, and the first direction can be the depth direction of the shell structure. In the embodiments of the present disclosure, through the arrangement of the first branch oil way 201 and the second branch oil way 401, even in special working conditions, the bearings in the upper first upper bearing mounting hole 210 and the second upper bearing mounting hole 410 can be fully lubricated by active lubrication. In addition, the shell structure is designed in a split type, which is convenient for processing and forming, the second upper bearing mounting hole 410 is arranged on the spacer 400, so that the spacer 400 plays a role in supporting the shaft system of the transmission mechanism, facilitating the assembly of the shell structure and the installation of the transmission mechanism.

[0053] In the embodiments of the present disclosure, referring to FIG. 1, FIG. 2 to FIG. 6, the first lower bearing mounting hole 220 and the first intermediate bearing mounting hole 230 are both arranged on the first shell 200, and at least one of the first lower bearing mounting hole 220 and the first intermediate bearing mounting hole 230 is arranged in communication with the branch oil way, that is, the bearings in at least one of the first lower bearing mounting hole 220 and the first intermediate bearing mounting hole 230 can be fully lubricated by active lubrication.

[0054] In some embodiments, the first intermediate bearing mounting hole 230 is arranged in communication with the first upper bearing mounting hole 210, and the first branch oil passage 201 is arranged on the side of the first upper bearing mounting hole 210 away from the first intermediate bearing mounting hole 230 in the second direction, that is, the first branch oil passage 201 is located above the first upper bearing mounting hole 210, and the oil in the first branch oil passage 201 flows through the first upper bearing mounting hole 210 and the first intermediate bearing mounting hole 230 in turn from high to low, so as to improve the oil pressure flowing through the first intermediate bearing mounting hole 230 and sufficiently lubricate the bearing in the first intermediate bearing mounting hole 230. In the drawings, the b direction can be the second direction, the first direction and the second direction are perpendicular to each other, and the second direction can be the height direction of the shell structure.

[0055] In some embodiments, the branch oil passage further includes a third branch oil passage 202 arranged on the first shell 200, the third branch oil passage 202 is arranged in communication with the first lower bearing mounting hole 220, and the first intermediate bearing mounting hole 230 is arranged in communication with the first upper bearing mounting hole 210. In the embodiments of the present disclosure, the third branch oil passage 202 supplies oil to the first lower bearing mounting hole 220, so that the bearing in the first lower bearing mounting hole 220 can be sufficiently lubricated, and under the action of the oil pressure supplied by the oil pump and the action of gravity, the oil in the first upper bearing mounting hole 210 can flow stably and reliably into the first intermediate bearing mounting hole 230, effectively ensuring that the bearing in the first intermediate bearing mounting hole 230 is sufficiently lubricated, and simplifying the arrangement of the lubricating oil passage 102 and the forming and manufacturing of the shell structure. Of course, the first intermediate bearing mounting hole 230 can also be arranged in communication with a branch oil passage alone to ensure that the bearing in the first intermediate bearing mounting hole 230 is sufficiently lubricated.

[0056] In some embodiments, the branch oil passage can not include the third branch oil passage 202, the first lower bearing mounting hole 220 can be arranged in communication with the first upper bearing mounting hole 210 through a branch oil passage, or the first lower bearing mounting hole 220 can be arranged in communication with the first intermediate bearing mounting hole 230 through a branch oil passage, so as to ensure that the bearing in the first lower bearing mounting hole 220 is sufficiently lubricated. Of course, the bearing mounting holes and the branch oil passages on the first shell 200 can also have other communication structures, which are not limited in the present disclosure.

[0057] In the embodiments of the present disclosure, referring to FIG. 1, FIG. 4, FIG. 6 and FIG. 7, the second intermediate bearing mounting hole 420 can be arranged on the spacer 400, and the second branch oil path 401 is arranged in communication with the second upper bearing mounting hole 410 and the second intermediate bearing mounting hole 420, respectively. In the embodiments of the present disclosure, the second upper bearing mounting hole 410 and the second intermediate bearing mounting hole 420 are supplied with oil through the second branch oil path 401, which not only ensures that the bearings in the second upper bearing mounting hole 410 and the second intermediate bearing mounting hole 420 are fully lubricated, but also effectively simplifies the arrangement of the lubricating oil path 102 and the molding and manufacturing of the housing structure.

[0058] In the embodiments of the present disclosure, referring to FIG. 3 to FIG. 5, the main oil path 301 includes a first oil outlet and a second oil outlet, the first oil outlet is arranged in communication with the first branch oil path 201, and the second oil outlet is arranged in communication with the third branch oil path 202, which facilitates the communication arrangement of the main oil path 301, the first branch oil path 201 and the third branch oil path 202.

[0059] In some embodiments, as shown in FIG. 4, to facilitate the communication of the first oil outlet and the first branch oil path 201 and simplify the arrangement of the lubricating oil path 102, the first oil outlet can be arranged in communication with the first branch oil path 201 through the first oil pipe 500. In some embodiments, the first oil outlet is arranged in communication with the first branch oil path 201 through the second branch oil path 401. Specifically, the first oil outlet, the first oil pipe 500, the second branch oil path 401 and the first branch oil path 201 are sequentially communicated. In the embodiments of the present disclosure, the second branch oil path 401 supplies oil to the first branch oil path 201 while supplying oil to the second upper bearing mounting hole 410 and the second intermediate bearing mounting hole 420, thereby acting as an adapter oil path, which can further simplify the arrangement of the lubricating oil path 102 and the molding and manufacturing of the housing structure.

[0060] In some embodiments, as shown in FIG. 5, to facilitate the communication of the second oil outlet and the third branch oil path 202 and simplify the arrangement of the lubricating oil path 102, the second oil outlet can be directly communicated with the oil inlet of the third branch oil path 202. Specifically, the end of the second oil outlet and the end of the oil inlet of the third branch oil path 202 abut each other along the first direction and are sealed and connected by a sealing gasket, which can shorten the assembly process flow of the drive system and reduce production cost.

[0061] In the embodiment of the present disclosure, referring to FIG. 4 and FIG. 6, the second branch oil path 401 can include a first oil path 4011 and a second oil path 4012 arranged at an angle, the first oil path 4011 is located on the side of the second upper bearing mounting hole 410 away from the second intermediate bearing mounting hole 420 in the second direction, the second oil path 4012 is located on the same side of the second upper bearing mounting hole 410 and the second intermediate bearing mounting hole 420 in the third direction, the first oil path 4011 is arranged in communication with the second upper bearing mounting hole 410, and the second oil path 4012 is arranged in communication with the second intermediate bearing mounting hole 420, so that the structure on the spacer 400 is compact. Wherein, the c direction in the figure can be the third direction, the first direction, the second direction and the third direction are perpendicular to each other, and the third direction can be the width direction of the housing structure. In the embodiment of the present disclosure, the oil pressure in the first oil path 4011 is less than the oil pressure in the second oil path 4012, and the second oil path 4012 supplies oil to the second intermediate bearing mounting hole 420 from the side, that is, the bearing in the second intermediate bearing mounting hole 420 can be fully lubricated; and the first oil path 4011 supplies oil to the second upper bearing mounting hole 410 from the high place, and under the action of gravity, the bearing in the second upper bearing mounting hole 410 at the high place can be fully lubricated.

[0062] Specifically, the first oil path 4011 is arranged in communication with the first branch oil path 201. In some embodiments, the oil outlet end of the first oil path 4011 in communication with the first branch oil path 201 and the oil inlet end of the first branch oil path 201 abut each other in the first direction and are sealed and connected by a sealing gasket, which can shorten the assembly process flow of the drive system and reduce production cost.

[0063] Specifically, the first oil pipe 500 is arranged in communication with the second oil path 4012, so that the oil flows to the first oil path 4011 through the second oil path 4012.

[0064] In the embodiment of the present disclosure, the first housing 200 or the spacer 400 is provided with an oil injection oil path in communication with the lubricating oil path 102, and the oil injection port of the oil injection oil path is arranged to face the gear pair. Through the arrangement of the oil injection oil path, the lubrication of the transmission mechanism is realized, the number of lubricating accessories in the transmission mechanism mounting cavity 101 is effectively reduced, the internal space of the transmission mechanism mounting cavity 101 is saved, the assembly process flow of the drive system is shortened, and the production cost is reduced.

[0065] In some embodiments, the spacer 400 is provided with a first oil injection oil path 402 in communication with the second branch oil path 401, and the oil injection port of the first oil injection oil path 402 is arranged to face the primary gear pair. The oil injected from the oil injection port of the first oil injection oil path 402 can lubricate the primary gear pair of the transmission mechanism, effectively ensure the normal operation of the transmission mechanism, further reduce the number of lubricating accessories in the transmission mechanism mounting cavity 101, save the internal space of the transmission mechanism mounting cavity 101, shorten the assembly process flow of the drive system, and reduce the production cost. Taking the bearings in the first upper bearing mounting hole 210 and the second upper bearing mounting hole 410 as an example for jointly supporting the input shaft of the transmission mechanism, the primary gear pair refers to the gear set meshing with each other on the input shaft and the intermediate shaft of the transmission mechanism. The direction of the oil injection port of the first oil injection oil path 402 can be the first direction, or can be arranged at an angle with the first direction, which is not limited in the present disclosure.

[0066] Specifically, the first oil injection oil path 402 is in communication with the second oil path 4012 to ensure the oil pressure in the first oil injection oil path 402, so that the oil injected from the first oil injection oil path 402 can be injected to the primary gear pair of the transmission mechanism.

[0067] In some embodiments, the spacer 400 is provided with a second oil injection oil path 403 in communication with the second intermediate shaft bearing mounting hole 420, and the oil injection port of the second oil injection oil path 403 is arranged to face the secondary gear pair. The oil injected from the oil injection port of the second oil injection oil path 403 can lubricate the secondary gear pair of the transmission mechanism, effectively ensure the normal operation of the transmission mechanism, further reduce the number of lubricating accessories in the transmission mechanism mounting cavity 101, save the internal space of the transmission mechanism mounting cavity 101, shorten the assembly process flow of the drive system, and reduce the production cost. Taking the bearings in the first lower bearing mounting hole 220 and the second lower bearing mounting hole 310 as an example for jointly supporting the output shaft of the transmission mechanism, the secondary gear pair refers to the gear set meshing with each other on the output shaft and the intermediate shaft of the transmission mechanism. The direction of the oil injection port of the second oil injection oil path 403 can be the first direction, or can be arranged at an angle with the first direction, which is not limited in the present disclosure.

[0068] In some embodiments, the first oil injection oil path 402 and the second oil injection oil path 403 can also be in communication with the main oil path 301 through an oil pipe to realize oil supply, or the first oil injection oil path 402 and the second oil injection oil path 403 are in communication and then in communication with the main oil path 301 through an oil pipe to realize oil supply. Of course, the first oil injection oil path 402 and the second oil injection oil path 403 can also realize oil supply through other ways, which is not limited in the present disclosure.

[0069] In the embodiments of the present disclosure, the shell structure further comprises a second shell 300, and the spacer 400 is arranged between the first shell 200 and the second shell 300 along the first direction, wherein the second lower bearing mounting hole 310 is arranged on the second shell 300. In the embodiments of the present disclosure, the first shell 200, the second shell 300 and the spacer 400 form a transmission mechanism mounting cavity 101 therebetween.

[0070] Specifically, the second shell 300 and the spacer 400 form a motor mounting cavity 104 therebetween, and the branch oil path comprises a fourth branch oil path arranged on the second shell 300, the fourth branch oil path comprising a third oil path (not shown) and a fourth oil path 302, the third oil path, the motor mounting cavity 104, the fourth oil path 302 and the second lower bearing mounting hole 310 are sequentially and communicatively arranged. The motor mounting cavity 104 is used for mounting a driving motor (not shown), and the driving motor is connected with an input shaft of the transmission mechanism. In the embodiments of the present disclosure, the oil is supplied into the motor mounting cavity 104 through the third oil path to cool and lubricate the driving motor, and the oil in the motor mounting cavity 104 can flow to the second lower bearing mounting hole 310 through the fourth oil path 302 and then return to the transmission mechanism mounting cavity 101, so that the oil forms a circulation and the bearing in the second lower bearing mounting hole 310 is fully lubricated. The third oil path is communicatively arranged with the main oil path 301.

[0071] In some embodiments, the fourth oil path 302 can be arranged at the bottom of the motor mounting cavity 104, so that the oil can reliably return to the transmission mechanism mounting cavity 101.

[0072] In some embodiments, in order to simplify the communication between the main oil path 301 and the third oil path and simplify the arrangement of the lubricating oil path 102, the main oil path 301 can be communicatively arranged with the third oil path through a second oil pipe (not shown).

[0073] In some embodiments, the spacer 400 can be fixed to the second shell 300 to facilitate the installation of the transmission mechanism.

[0074] In some embodiments, the main oil path 301 can be arranged on the second shell 300 to facilitate the installation of the oil pump on the second shell 300 and the communication between the oil pump and the main oil path 301.

[0075] In some embodiments, the first shell 200 and the second shell 300 can be connected by fasteners. Of course, the first shell 200 and the second shell 300 can also be connected by welding or other means, which are not limited in the present disclosure.

[0076] In some embodiments, the second shell 300 and the spacer 400 can be connected by fasteners. Of course, the second shell 300 and the spacer 400 can also be connected by welding or other means, which are not limited in the present disclosure. In some embodiments, the second shell 300 and the spacer 400 can be connected by fasteners. Of course, the second shell 300 and the spacer 400 can also be connected by welding or other means, which are not limited in the present disclosure.

[0077] In the embodiments of the present disclosure, the second housing 300 is further provided with a generator mounting cavity (not shown) for mounting a generator (not shown) for connecting the engine to generate electricity.

[0078] The embodiments of the present disclosure further provide a drive system, which comprises the transmission mechanism and the housing structure as described above, and the transmission mechanism is arranged in the transmission mechanism mounting cavity 101 of the housing structure. In the embodiments of the present disclosure, through the design of the housing structure, the bearing supporting the transmission mechanism can be fully lubricated, and the service life of the drive system is effectively improved, so that the drive system can be used in special environments. Further, the drive system further comprises an oil pump, a drive motor and / or a generator, and the specific assembly relationship can be referred to the foregoing relevant description, which will not be described here.

[0079] The embodiments of the present disclosure further provide a vehicle, which comprises a frame and the drive system as described above, and the drive system is arranged on the frame. Through the arrangement of the drive system, the vehicle can be used in special environments.

[0080] Obviously, the above embodiments of the present disclosure are only examples for clearly illustrating the present disclosure, and are not intended to limit the embodiments of the present disclosure. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present disclosure. It is unnecessary and impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the present disclosure shall be included in the protection scope of the claims of the present disclosure.

Claims

1. A housing structure characterized by, The transmission mechanism mounting cavity (101) has a plurality of bearing mounting holes (103) on the cavity wall, and the lubricating oil passage (102) comprises a branch oil passage which is arranged in communication with at least one of the bearing mounting holes (103).

2. The housing structure of claim 1, wherein The bearing mounting holes (103) comprise upper and lower bearing mounting holes, and the branch oil passage is arranged in communication with at least the upper bearing mounting hole.

3. The housing structure of claim 2, wherein, The first housing (200) and the spacer (400) are oppositely arranged along a first direction, wherein The first housing (200) is provided with a first branch oil passage (201), and the spacer (400) is provided with a second branch oil passage (401), the upper bearing mounting hole comprises a first upper bearing mounting hole (210) arranged on the first housing (200) and a second upper bearing mounting hole (410) arranged on the spacer (400), the first branch oil passage (201) is arranged in communication with the first upper bearing mounting hole (210), and the second branch oil passage (401) is arranged in communication with the second upper bearing mounting hole (410).

4. The housing structure of claim 3, wherein The bearing mounting holes (103) further comprise a first intermediate bearing mounting hole (230) arranged on the first housing (200), and the lower bearing mounting hole comprises a first lower bearing mounting hole (220) arranged on the first housing (200), wherein At least one of the first lower bearing mounting hole (220) and the first intermediate bearing mounting hole (230) is arranged in communication with the branch oil passage.

5. The housing structure of claim 4, wherein, The first branch oil passage (201) is arranged on the side of the first upper bearing mounting hole (210) away from the first intermediate bearing mounting hole (230) along a second direction, wherein the first direction and the second direction are perpendicular to each other.

6. The housing structure according to claim 4 or 5, characterized by The branch oil passage further comprises a third branch oil passage (202) arranged on the first housing (200), the third branch oil passage (202) is arranged in communication with the first lower bearing mounting hole (220), and the first intermediate bearing mounting hole (230) is arranged in communication with the first upper bearing mounting hole (210).

7. The housing structure of claim 6, wherein, The lubricating oil passage (102) further comprises a main oil passage (301), the main oil passage (301) comprises a first oil outlet and a second oil outlet, the first oil outlet is arranged in communication with the first branch oil passage (201), and the second oil outlet is arranged in communication with the third branch oil passage (202).

8. The housing structure of claim 7, wherein, The first oil outlet is arranged in communication with the first branch oil passage (201) through the second branch oil passage (401).

9. The housing structure according to any one of claims 3 to 8, characterized by, The bearing mounting holes (103) further comprise a second intermediate bearing mounting hole (420) arranged on the spacer (400), and the second branch oil passage (401) is arranged in communication with the second upper bearing mounting hole (410) and the second intermediate bearing mounting hole (420) respectively.

10. The housing structure of claim 9, wherein, The second branch oil passage (401) comprises a first oil passage (4011) and a second oil passage (4012) arranged at an angle, the first oil passage (4011) is located on one side of the second upper bearing mounting hole (410) away from the second intermediate bearing mounting hole (420) in a second direction, the second oil passage (4012) is located on the same side of the second upper bearing mounting hole (410) and the second intermediate bearing mounting hole (420) in a third direction, the first oil passage (4011) is in communication with the second upper bearing mounting hole (410), and the second oil passage (4012) is in communication with the second intermediate bearing mounting hole (420), wherein the first direction, the second direction and the third direction are perpendicular to each other.

11. The housing structure according to any one of claims 3 to 10, characterized in that, The first shell (200) or the spacer (400) is provided with an oil injection oil passage in communication with the lubricating oil passage (102), and an oil injection port of the oil injection oil passage is arranged to face a gear pair.

12. The housing structure of any one of claims 3 to 11, wherein, Further comprising a second shell (300), the spacer (400) is arranged between the first shell (200) and the second shell (300) in the first direction, the lower bearing mounting hole comprises a second lower bearing mounting hole (310) arranged on the second shell (300), a motor mounting cavity (104) is formed between the first shell (200) and the second shell (300), and the branch oil passage further comprises a fourth branch oil passage arranged on the second shell (300), the fourth branch oil passage comprises a third oil passage and a fourth oil passage (302), the third oil passage, the motor mounting cavity (104), the fourth oil passage (302) and the second lower bearing mounting hole (310) are sequentially arranged in communication.

13. A drive system characterized by, A transmission mechanism and the shell structure as claimed in any one of claims 1-12 are included, and the transmission mechanism is arranged in a transmission mechanism mounting cavity (101) of the shell structure.

14. The drive system of claim 13, wherein, Further comprising a motor and / or a generator arranged in the shell structure.

15. A vehicle characterized by comprising: A vehicle frame and the drive system as claimed in any one of claims 13-14 are included, and the drive system is arranged on the vehicle frame.

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