Actuator housing, actuator, suspension assembly and vehicle

Abstract

An actuator housing, an actuator, a suspension assembly and a vehicle. The actuator housing comprises a housing body, wherein an accommodating space for accommodating a speed shifting mechanism is formed in the housing body, the housing body comprises a first housing and a second housing which are arranged in a separated manner, and butt-joint faces of the first housing and the second housing are parallel to the axis of an input end of the speed shifting mechanism.

Description

Actuator housing, actuator, suspension assembly and vehicle

[0001] Cross-reference to Related Applications

[0002] The present application is based on the Chinese patent application No. 202420921678.2, filed on April 29, 2024, and claims the priority of the Chinese patent application No. 202420921678.2, the whole content of which is incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the technical field of vehicles, in particular to an actuator housing, an actuator, a suspension assembly and a vehicle. BACKGROUND

[0004] In related technologies, the actuator housing used in the actuator is of an open type, and water, dust or other solid particles may fall into the gear and rack structure, affecting the meshing of the gear and rack and having the risk of shortening the service life of the gear and rack. SUMMARY

[0005] An object of the present application is to provide an actuator housing which can improve the service life of a gear shift mechanism and facilitate the installation, disassembly and maintenance of the gear shift mechanism.

[0006] The present application also provides an actuator with the actuator housing.

[0007] The present application also provides a suspension assembly with the actuator.

[0008] The present application also provides a vehicle with the suspension assembly.

[0009] According to some embodiments of the present application, the actuator housing comprises a housing body, the housing body is internally formed with an accommodation space for accommodating a gear shift mechanism, the housing body comprises a first housing body and a second housing body arranged separately, and the abutting surfaces of the first housing body and the second housing body are parallel to the axis of the input end of the gear shift mechanism.

[0010] According to some embodiments of the present application, the housing body comprises a first housing body and a second housing body arranged separately, the gear shift mechanism can be sealed in the accommodation space, which avoids water, dust or other impurities in the external environment from entering the accommodation space, improves the service life of the gear shift mechanism, and facilitates the installation, disassembly and maintenance of the gear shift mechanism; by making the abutting surfaces of the first housing body and the second housing body parallel to the axis of the input end of the gear shift mechanism, the assembly difficulty of the gear shift mechanism can be reduced, the assembly efficiency can be improved, and the force from the radial direction of the gear shift mechanism can be well borne.

[0011] In some embodiments of the present application, the axis of the input end is located in the abutting surface.

[0012] In some embodiments of the present application, a first flange is arranged on the first housing, and a second flange is arranged on the second housing, and the first flange and the second flange are fixedly connected by a fixing member.

[0013] In some embodiments of the present application, the first flange has a first positioning part, and the second flange has a second positioning part which is positioned and matched with the first positioning part.

[0014] In some embodiments of the present application, the first positioning part comprises a first positioning hole, and the second positioning part comprises a second positioning hole which is opposite to the first positioning hole, and the first positioning hole and the second positioning hole are positioned and connected by a positioning pin.

[0015] In some embodiments of the present application, the first housing is connected with a first mounting seat, the second housing is connected with a second mounting seat, the first mounting seat and the second mounting seat are spliced to form a mounting seat, and an axle hole which communicates with the accommodating space is formed between the first mounting seat and the second mounting seat, a driving mechanism is mounted on the mounting seat, and an output shaft of the driving mechanism is adapted to pass through the axle hole and be in transmission connection with the transmission mechanism.

[0016] In some embodiments of the present application, the first mounting seat and the second mounting seat are detachably connected.

[0017] In some embodiments of the present application, a first reinforcing rib is arranged between the first mounting seat and the first housing, and a second reinforcing rib is arranged between the second mounting seat and the second housing, and the number of the first reinforcing rib and the second reinforcing rib is multiple.

[0018] In some embodiments of the present application, a positioning structure which is positioned and matched with the driving mechanism is arranged on the mounting seat.

[0019] In some embodiments of the present application, the positioning structure comprises a positioning groove, a side wall of the positioning groove surrounds an outer circumferential side of an outer shell of the driving mechanism, and the axle hole penetrates a bottom wall of the positioning groove.

[0020] In some embodiments of the present application, a protruding part which protrudes towards the first housing is arranged on the driving mechanism, the bottom wall of the positioning groove is provided with a recessed part which is positioned and matched with the protruding part, and the axle hole is located in the recessed part.

[0021] In some embodiments of the present application, the first housing and the first mounting seat are an integral molded part, and / or the second housing and the second mounting seat are an integral molded part.

[0022] In some embodiments of the present application, the transmission mechanism comprises a transmission gear, and an inner surface of at least one of the first housing and the second housing has an inner arc surface surrounding an outer circumferential side of the transmission gear, the inner arc surface being coaxial with the transmission gear and being spaced apart from the transmission gear.

[0023] In some embodiments of the present application, a window is defined between the first housing and the second housing, and the actuator housing further comprises an end cover detachably mounted at the window, the first housing and / or the second housing is provided with a convex ring surrounding the window at the window, the transmission mechanism comprises a transmission shaft and a bearing mounted at an end of the transmission shaft, and the bearing is located in the convex ring.

[0024] In some embodiments of the present application, a boss is provided on a side of the end cover facing the accommodation space, and the boss is used to extend into the convex ring and abut against the bearing. In some embodiments of the present application, at least one limiting piece is provided in the accommodation space, and the transmission mechanism is drivingly connected with a linear moving linear motion component, and the limiting piece is used to limit the activity range of the linear motion component.

[0025] In some embodiments of the present application, a guide is provided in the accommodation space, and the guide is used to guide the activity direction of the linear motion component.

[0026] In some embodiments of the present application, an oil injection hole is provided on the first housing and / or the second housing and communicates with the accommodation space, and the oil injection hole is provided at least one, and the oil injection hole is provided opposite to the transmission mechanism.

[0027] Some embodiments of the present application also provide an actuator, which comprises a transmission mechanism and an actuator housing, and the transmission mechanism is mounted in an accommodation space of the actuator housing.

[0028] According to the actuator provided in some embodiments of the present application, by providing the above-mentioned actuator housing, the axis of the input end can be accurately and reliably transmitted to the transmission mechanism along the axis direction of the input end, which is beneficial to improve the operation precision and stability of the actuator, and also facilitates the effective transmission of power.

[0029] In some embodiments of the present application, a driving mechanism, an output and a linear motion component are further included, the driving mechanism is connected with the output through the transmission mechanism, the linear motion component extends in an actuating direction, and the output and the linear motion component cooperate to drive the linear motion component to linearly move in the actuating direction.

[0030] Some embodiments of the present application also provide a suspension assembly comprising the actuator.

[0031] According to the suspension assembly provided by some embodiments of the present application, the actuator is arranged, so that the actuator can support the vehicle body and absorb impact, and the ride comfort of the vehicle is improved, so that the passengers can have a more comfortable ride.

[0032] Some embodiments of the present application also provide a vehicle, which comprises a vehicle body, a wheel, and a suspension assembly connected between the vehicle body and the wheel.

[0033] According to the vehicle provided by some embodiments of the present application, the suspension assembly is arranged, so that the suspension assembly can support the vehicle body and absorb impact, and the ride comfort of the vehicle is improved, so that the passengers can have a more comfortable ride.

[0034] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the following drawings. BRIEF DESCRIPTION OF DRAWINGS

[0035] The accompanying drawings incorporated in and forming a part of the specification illustrate embodiments of the present application and, together with the description, serve to explain the principles of the present application.

[0036] FIG. 1 is a schematic view of an actuator according to some embodiments of the present application;

[0037] FIG. 2 is a schematic view of the cooperation of the actuator housing according to some embodiments of the present application;

[0038] FIG. 3 is a schematic view of the first housing according to some embodiments of the present application;

[0039] FIG. 4 is a schematic view of the first housing according to some embodiments of the present application from another angle;

[0040] FIG. 5 is a schematic view of the second housing according to some embodiments of the present application;

[0041] FIG. 6 is a schematic view of the first end cover according to some embodiments of the present application.

[0042] 100, actuator; 101, actuator housing; 10, driving mechanism; 11, protruding part; 20, damping elastic member; 31, housing body; 311, outer arc surface; 312, first inner arc surface; 313, second inner arc surface; 32, shaft coupling; 33, accommodating space; 34, convex ring; 41, first housing; 411, first flange; 4111, first positioning hole; 4112, first connecting hole; 412, first housing body; 42, second housing; 421, second flange; 4211, second positioning hole; 4212, second connecting hole; 422, second housing body; 43, abutting surface; 44, mounting seat; 441, first mounting seat; 4411, first reinforcing rib; 442, second mounting seat; 443, positioning groove; 4431, first positioning groove; 4432, second positioning groove; 444, recess; 451, first window; 452, second window; 453, third window; 454, fourth window; 455, fourth connecting hole; 456, sixth connecting hole; 46, first end cover; 461, first boss; 462, third connecting hole; 47, second end cover; 471, fifth connecting hole; 48, limiting member; 49, oil injection hole; 50, gear shifting mechanism; 51, first gear shifting gear; 52, second gear shifting gear; 53, output member; 54, linear motion component; 55, first transmission shaft; 56, second transmission shaft; 61, lower fork arm; 62, vehicle body connecting plate. DETAILED DESCRIPTION

[0043] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments are not limiting to the scope of the present application unless specifically stated otherwise.

[0044] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way limiting to the scope of the application or its applications or uses.

[0045] Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail herein, but should be considered as part of the specification, where appropriate.

[0046] In all of the examples shown and discussed herein, any specific values should be interpreted as merely illustrative and not as a limitation on the scope of the exemplary embodiments. Thus, other examples of the exemplary embodiments can have different values.

[0047] It should be noted that like reference numerals and letters in the various figures indicate similar items, and thus, once an item is defined in one figure, it need not be discussed further in subsequent figures.

[0048] An actuator housing 101 according to embodiments of the present application is described below with reference to the accompanying drawings.

[0049] As shown in FIG. 1 and FIG. 2, some embodiments of the present application provide an actuator housing 101, which comprises a housing body 31 including a first housing 41 and a second housing 42, the first housing 41 and the second housing 42 are separately arranged, and the abutting surface 43 of the first housing 41 and the second housing 42 is parallel to the axis of the input end of the speed change mechanism 50, the abutting surface 43 is a plane, which can facilitate the assembly of the first housing 41 and the second housing 42.

[0050] The speed change mechanism 50 is sealed in the containing space 33 in the housing body 31, which can avoid water, dust or other impurities in the external environment from entering the containing space 33, and improve the working life of the speed change mechanism 50. When the speed change mechanism 50 needs to be repaired or maintained, the first housing 41 and the second housing 42 can be separated, which can facilitate the repair or maintenance of the speed change mechanism 50; after the repair or maintenance is completed, the first housing 41 and the second housing 42 can be installed together.

[0051] The abutting surface 43 of the first housing 41 and the second housing 42 is parallel to the axis of the input end of the speed change mechanism 50, referring to FIG. 1, the speed change mechanism 50 includes a first speed change gear 51, and the axis of the first speed change gear 51 is the axis of the input end of the speed change mechanism 50, thus the first housing 41 and the second housing 42 are assembled in the radial direction of the first speed change gear 51, so that the first housing 41 or the second housing 42 can be placed on a workbench first, then the speed change mechanism 50 is installed in the first housing 41, and then the second housing 42 is spliced with the first housing 41, which is simple to operate, and can better withstand the radial force from the speed change mechanism 50.

[0052] According to some embodiments of the present application, the actuator housing 101, the housing body 31 includes the first housing 41 and the second housing 42 which are separately arranged, the speed change mechanism 50 can be sealed in the containing space 33, which avoids water, dust or other impurities in the external environment from entering the containing space 33, and improves the working life of the speed change mechanism 50; and the speed change mechanism 50 can be conveniently installed, disassembled and maintained; by making the abutting surface 43 of the first housing 41 and the second housing 42 parallel to the axis of the input end of the speed change mechanism 50, the assembly difficulty of the speed change mechanism 50 can be reduced, the assembly efficiency can be improved, and the radial force from the speed change mechanism 50 can be better resisted.

[0053] In some embodiments of the present application, referring to FIGS. 1-6, the axis of the input end is located in the abutting surface 43, that is, the axis of the input end of the transmission mechanism 50 is coplanar with the abutting surface 43 of the first housing 41 and the second housing 42, which can further reduce the assembly difficulty of the transmission mechanism 50, improve the assembly efficiency, and better withstand the force from the radial direction of the transmission mechanism 50.

[0054] In some embodiments of the present application, referring to FIGS. 1-6, the first housing 41 is provided with a first flange 411, and the second housing 42 is provided with a second flange 421, and the first flange 411 and the second flange 421 are fixedly connected by a fixing member. By providing the first flange 411 and the second flange 421, the fixed connection between the first housing 41 and the second housing 42 can be facilitated.

[0055] In some embodiments of the present application, the first flange 411 has a first positioning portion, and the second flange 421 has a second positioning portion that is positioned and matched with the first positioning portion. In one example, the first positioning portion includes a first positioning hole 4111, and the second positioning portion includes a second positioning hole 4211 opposite to the first positioning hole 4111, and the first positioning hole 4111 and the second positioning hole 4211 are positioned and connected by a positioning pin.

[0056] As shown in FIGS. 1-5, the first housing 41 includes a first flange 411 and a first housing body 412, and the first flange 411 is connected to the outer circumferential side of the first housing body 412. The second housing 42 includes a second flange 421 and a second housing body 422, and the second flange 421 is connected to the outer circumferential side of the second housing body 422. The first flange 411 is provided with a first positioning hole 4111, and the second flange 421 is provided with a second positioning hole 4211 opposite to the first positioning hole 4111. The assembly position of the first housing 41 and the second housing 42 can be positioned in advance according to the second positioning hole 4211 and the first positioning hole 4111, so as to improve the accuracy of the assembly position of the first housing 41 and the second housing 42.

[0057] For example, the number of first positioning holes 4111 can be multiple, and the multiple first positioning holes 4111 are arranged at intervals along the circumference of the first flange 411. The number of second positioning holes 4211 can be multiple, and the multiple second positioning holes 4211 are arranged at intervals along the circumference of the second flange 421. The number of second positioning holes 4211 is equal to and corresponds to the number of first positioning holes 4111, which can improve the accuracy of the assembly position of the first housing 41 and the second housing 42 in some embodiments of the present application.

[0058] The first flange 411 is provided with a first connecting hole 4112, and the second flange 421 is provided with a second connecting hole 4212. The second connecting hole 4212 is opposite to the first connecting hole 4112. A bolt can be sequentially arranged in the second connecting hole 4212 and the first connecting hole 4112 to fix and connect the first shell 41 and the second shell 42. The connection mode of the first shell 41 and the second shell 42 is simple and firm.

[0059] For example, the number of the first connecting hole 4112 can be multiple. The multiple first connecting holes 4112 are arranged at intervals along the circumference of the first flange 411. The number of the second connecting hole 4212 can be multiple. The multiple second connecting holes 4212 are arranged at intervals along the circumference of the second flange 421. The number of the second connecting hole 4212 is equal to and one-to-one corresponding to the number of the first connecting hole 4112. In some embodiments of the present application, the firmness of the connection between the first shell 41 and the second shell 42 is improved.

[0060] For example, the first flange 411 can form an angle with the side wall of the first shell body 412. The angle between the first flange 411 and the side wall of the first shell body 412 can be 90°. The second flange 421 can form an angle with the side wall of the second shell body 422. The angle between the second flange 421 and the side wall of the second shell body 422 can be 90°. The first connecting hole 4112 is arranged on the first flange 411, and the second connecting hole 4212 is arranged on the second flange 421. The first shell 41 and the second shell 42 are convenient to disassemble and install.

[0061] In some embodiments of the present application, referring to FIGS. 1-5, the wall thicknesses of at least two regions of the shell wall of the shell body 31 are different. The shell body 31 can adopt different thicknesses according to different force requirements, which is helpful to the lightweight of the shell body 31. For example, the shell body 31 includes the first shell 41 and the second shell 42. The wall thickness of the first shell 41 can be different from the wall thickness of the second shell 42.

[0062] Referring to FIGS. 1-5, the first shell 41 is connected with a first mounting seat 441, the second shell 42 is connected with a second mounting seat 442, the first mounting seat 441 and the second mounting seat 442 are spliced to form a mounting seat 44, and an axle hole is formed between the first mounting seat 441 and the second mounting seat 442 and communicates with the accommodating space 33. The driving mechanism 10 is mounted on the mounting seat 44. The driving mechanism 10 can be fixedly connected with the shell body 31 by arranging the mounting seat 44. The output shaft of the driving mechanism 10 is adapted to pass through the axle hole and be in transmission connection with the speed change mechanism 50. Thus, the driving mechanism 10 can be fixedly connected with the shell body 31 and in transmission connection with the speed change mechanism 50 by arranging the mounting seat 44. Since the driving mechanism 10 is fixedly connected with the shell body 31, the transmission between the driving mechanism 10 and the speed change mechanism 50 is stable.

[0063] In some embodiments of the present application, the first mounting seat 441 and the second mounting seat 442 are detachably connected. Thus, the reliability of the connection between the first shell 41 and the second shell 42 can be improved, and the driving mechanism 10 can be fixedly connected with the mounting seat 44 after splicing of the first mounting seat 441 and the second mounting seat 442.

[0064] In some embodiments of the present application, the first mounting seat 441 and the first shell 41 have a first reinforcing rib 4411, the second mounting seat 442 and the second shell 42 have a second reinforcing rib, and the number of the first reinforcing rib 4411 and the second reinforcing rib is multiple. The connection strength between the first mounting seat 441 and the first shell 41 can be improved by arranging the first reinforcing rib 4411, the connection strength between the second mounting seat 442 and the second shell 42 can be improved by arranging the second reinforcing rib, and thus the driving mechanism 10 can be fixedly connected with the mounting seat 44 after splicing of the first mounting seat 441 and the second mounting seat 442.

[0065] In some embodiments of the present application, referring to FIGS. 1-5, the mounting seat 44 is provided with a positioning structure for positioning the driving mechanism 10. The positioning structure includes a positioning groove 443. The side wall of the positioning groove 443 surrounds the outer circumferential side of the housing of the driving mechanism 10. The axle hole penetrates the bottom wall of the positioning groove 443.

[0066] As shown in one specific example in FIGS. 1-5, the first mounting seat 441 is provided with a first positioning groove 4431, the second mounting seat 442 is provided with a second positioning groove 4432, after the first mounting seat 441 and the second mounting seat 442 are combined, the first positioning groove 4431 and the second positioning groove 4432 are spliced into a positioning groove 443, in some embodiments of the application, the side wall of the positioning groove 443 can be a circular ring, the side wall of the circular ring-shaped positioning groove 443 can be coaxially arranged with the output shaft of the driving mechanism 10, thereby, after the driving mechanism 10 is positioned and mounted in the positioning groove 443, the stability of the output shaft can also be indirectly improved, and by arranging the first positioning groove 4431, it is also beneficial to the assembly of the driving mechanism 10, and the efficiency of the assembly of the driving mechanism 10 can be improved.

[0067] In some embodiments of the application, the driving mechanism 10 is provided with a protruding portion 11 protruding towards the first shell 41, the bottom wall of the positioning groove 443 is provided with a recessed portion 444 for positioning and matching the protruding portion 11, and the shaft hole is located in the recessed portion 444. Thus, in the cooperation of the driving mechanism 10 and the mounting seat 44, on the one hand, the driving mechanism 10 is positioned by the positioning groove 443, and on the other hand, the protruding portion 11 is positioned and matched by the recessed portion 444, through these two aspects of positioning, the driving mechanism 10 can be more stably mounted on the mounting seat 44, and the stability of the output shaft can be indirectly improved.

[0068] In some embodiments of the application, referring to FIGS. 1-5, the first shell 41 and the first mounting seat 441 are integrally formed, and the structural stability is enhanced; the integral forming reduces the connecting interface between parts, so that the connection between the first shell 41 and the first mounting seat 441 is more firm and reliable, and the loosening or breaking of the connection is less likely to occur, thereby improving the stability and durability of the overall structure.

[0069] In some embodiments of the application, referring to FIGS. 1-5, the second shell 42 and the second mounting seat 442 are integrally formed, and the structural stability is enhanced; the integral forming reduces the connecting interface between parts, so that the connection between the second shell 42 and the second mounting seat 442 is more firm and reliable, and the loosening or breaking of the connection is less likely to occur, thereby improving the stability and durability of the overall structure.

[0070] In some embodiments of the application, referring to FIGS. 1-3, the transmission mechanism 50 includes a transmission gear, and an inner surface of at least one of the first shell 41 and the second shell 42 has an inner arc surface surrounding an outer peripheral side of the transmission gear, the inner arc surface is coaxial with the transmission gear and is spaced apart from the transmission gear.

[0071] Referring to one example shown in FIG. 1, the variable gear includes a first variable gear 51 and a second variable gear 52 engaged with each other, the first variable gear 51 is in transmission connection with an output shaft of an output mechanism, the second variable gear 52 is a driven gear, the diameter of the second variable gear 52 is greater than that of the first variable gear 51, the inner surface of the first housing 41 has a first inner arc surface 312 opposite to the first variable gear 51, the inner surface of the first housing 41 has a second inner arc surface 313 opposite to the second variable gear 52, in some embodiments of the present application, the first inner arc surface 312 can be connected with the second inner arc surface 313 or not, which is not limited in the present application, by setting the inner arc surface in the first housing 41, it is not only beneficial to the rotation of the variable gear, but also can improve the structure of the first housing 41 according to actual needs, so as to reasonably design the internal structure of the first housing 41 and reasonably utilize the internal space of the first housing 41.

[0072] It should be noted that the above example is only an example, and it can be understood that the inner arc surface can be constructed on the first housing 41 and the second housing 42, or only on the second housing 42, which is not limited in the present application.

[0073] The outer surface of the housing body 31 includes an outer arc surface 311, one outer arc surface 311 is arranged opposite to the first inner arc surface 312, and one outer arc surface 311 is arranged opposite to the second inner arc surface 313, the shape of the outer surface of the housing body 31 is close to the outer contour of the opposite variable gear, the external structure of the housing body 31 is reasonably designed, the size of the housing body 31 is further reduced, which is beneficial to the compact design of the housing body 31, reduces the space occupied by the housing body 31, and facilitates the arrangement of other parts adjacent to the housing body 31.

[0074] In some embodiments of the present application, referring to FIGS. 1-6, the window is defined between the first housing 41 and the second housing 42, the actuator housing 101 further includes an end cover which is detachably mounted at the window, the first housing 41 and / or the second housing 42 is provided with a protruding ring 34 surrounding the window at the window, the variable gear mechanism 50 includes a transmission shaft and a bearing mounted at the end of the transmission shaft, and the bearing is located in the protruding ring 34. That is, the bearing can be assembled on the protruding ring 34, by setting the window at the position of the protruding ring 34 and the end cover which can detachably open or close the window, the interior of the housing body 31 can be better checked by opening the end cover, and the bearing can be maintained or replaced, without having to disassemble the first housing 41 and the second housing 42, which can improve the maintenance efficiency and reduce the maintenance cost.

[0075] In some embodiments of the present application, the end cover is provided with a boss on the side facing the first shell 41, and the boss is used to extend into the convex ring 34 and abut against the bearing. In this way, the bearing can be more stably installed at the end of the transmission shaft, so that the bearing is not easy to move in the axial direction of the transmission shaft, thereby enabling the transmission shaft to stably transmit power.

[0076] In some embodiments of the present application, referring to FIGS. 1-2, the accommodation space 33 is provided with at least one limiting piece 48, and the transmission mechanism 50 is drivingly connected with a linear moving linear motion component 54, and the limiting piece 48 is used to limit the activity range of the linear motion component 54. Referring to one specific example shown in FIG. 1, the actuator 100 further includes an output member 53 and a linear motion component 54, and the driving mechanism 10 is connected with the output member 53 through the transmission mechanism 50; the linear motion component 54 extends along an actuation direction (for example, the direction shown by e1 in FIG. 1), and the output member 53 cooperates with the linear motion component 54 to drive the linear motion component 54 to linearly move in the actuation direction.

[0077] During the driving of the vehicle, when the posture of the vehicle body needs to be adjusted, the driving mechanism 10 drives the linear motion component 54 to linearly move in the actuation direction through the transmission mechanism 50 and the output member 53, and the linear motion component 54 pushes the vehicle wheel and the vehicle body to relatively move in the actuation direction, thereby adjusting the distance between the vehicle wheel and the vehicle body, and achieving the adjustment of the posture of the vehicle body, i.e., the active damping of the vehicle. The transmission mechanism 50 can realize the speed reduction and torque increase of the driving mechanism 10, and in the case that the output torque of the output member 53 meets the use requirement, the power of the driving mechanism 10 can be reduced.

[0078] In some embodiments of the present application, one limiting piece 48 can be arranged in the shell body 31, or a plurality of limiting pieces 48 can be arranged in the shell body 31, and the number of the limiting pieces 48 can be determined according to the specific structure of the linear motion component 54 in the shell body 31. The limiting piece 48 is used to limit the activity range of the linear motion component 54, so as to prevent the linear motion component 54 from exceeding the preset range during the activity, thereby preventing the linear motion component 54 from failing to engage with the output member 53.

[0079] In some embodiments of the present application, the limiting piece 48 can be provided with two, namely a first limiting piece and a second limiting piece. The first limiting piece can be located in the housing body 31 and at the upper end of the linear motion component 54, for limiting the displacement amount of the upward movement of the linear motion component 54. The second limiting piece is adjacent to the engagement position of the linear motion component 54 and the output member 53 and is located above the engagement position of the linear motion component 54 and the output member 53, for limiting the displacement amount of the downward movement of the linear motion component 54, which can avoid that the displacement amount of the downward movement of the linear motion component 54 is too large, resulting in the failure of the engagement of the linear motion component 54 and the output member 53. The second limiting piece can also axially limit the linear motion component 54, which can adjust the engagement force of the output member 53 and the linear motion component 54 in real time and ensure that the output member 53 and the linear motion component 54 maintain a good engagement state.

[0080] In some embodiments of the present application, referring to FIG. 1, at least one guide is arranged in the housing body 31. The housing body 31 can be provided with one guide or a plurality of guides. The guide is arranged on the outer circumferential side of the linear motion component 54, for guiding the movement direction of the linear motion component 54, which can guide the linear motion component 54 to move in a direction perpendicular to the rotation axis of the output member 53, avoiding the movement of the linear motion component 54 in the radial direction.

[0081] In some embodiments of the present application, the guide can be a linear bearing. The linear bearing is arranged on the outer circumferential side of the linear motion component 54, which can convert the sliding friction between the linear motion component 54 and the housing body 31 into rolling friction between the linear motion component 54 and the linear bearing, reducing the frictional resistance.

[0082] In some embodiments of the present application, referring to FIGS. 1-3, the first housing 41 and / or the second housing 42 is provided with an oil injection hole 49 communicating with the accommodating space 33. The oil injection hole 49 is provided with at least one, and the oil injection hole 49 is arranged opposite to the speed change mechanism 50.

[0083] Referring to FIGS. 2-4, the housing body 31 is provided with at least one oil injection hole 49. The housing body 31 can be provided with one oil injection hole 49 or a plurality of oil injection holes 49. When the housing body 31 is provided with one oil injection hole 49, the oil injection hole 49 is arranged opposite to the speed change mechanism 50. Lubricating oil can be injected into the housing body 31 through the oil injection hole 49, so as to reduce the friction in the speed change mechanism 50 and play a role in cooling, thereby ensuring the service life of the speed change mechanism 50. For example, the side wall of the oil injection hole 49 can be provided with threads, and a cover plate can be used to cover the oil injection hole 49, thereby playing a sealing role.

[0084] In some embodiments of the present application, the oil injection hole 49 is arranged opposite to the first gear 51, or the oil injection hole 49 is arranged opposite to the output member 53. The housing body 31 is provided with a plurality of oil injection holes 49, one of which is arranged opposite to the first gear 51, and the other of which is arranged opposite to the output member 53. Lubricating oil can be injected into the housing body 31 through the oil injection hole 49 to reduce the friction between the first gear 51 and the second gear 52, and the friction between the output member 53 and the linear motion component 54, and to play a cooling role, thereby ensuring the service life of the gears and the output member 53 and the linear motion component 54. For example, the sidewall of the oil injection hole 49 can be provided with threads, and a cover plate can be used to cover the oil injection hole 49 to play a sealing role.

[0085] According to the actuator 100 of some embodiments of the present application, the actuator 100 comprises a gear shifting mechanism 50 and an actuator housing 101, and the gear shifting mechanism 50 is installed in the accommodation space 33.

[0086] According to the actuator 100 provided by some embodiments of the present application, by arranging the above-mentioned actuator housing 101, water, dust or other impurities in the external environment are prevented from entering the accommodation space 33, thereby improving the working life of the gear shifting mechanism 50; the installation, disassembly and maintenance of the gear shifting mechanism 50 are facilitated; the abutting surface 43 of the first housing 41 and the second housing 42 intersects the axis of the input end of the gear shifting mechanism 50, and the stress surface of the first housing 41 and the second housing 42 intersects the axis of the input end of the gear shifting mechanism 50, thereby ensuring that the axis of the input end can be accurately and correctly transmitted to the gear shifting mechanism 50 along the axis direction of the input end, which is conducive to improving the operation accuracy and stability of the entire system, and also facilitates the effective transmission of power.

[0087] In the actuator 100 provided by some embodiments of the present application, the actuator 100 further comprises a driving mechanism 10, an output member 53 and a linear motion component 54, the driving mechanism 10 is connected to the output member 53 through the gear shifting mechanism 50; the linear motion component 54 extends along the actuating direction, and the output member 53 cooperates with the linear motion component 54 to drive the linear motion component 54 to move linearly along the actuating direction.

[0088] With reference to one embodiment shown in FIGS. 1-6, the gear shifting mechanism 50 comprises the first gear 51 and the second gear 52 which are engaged with each other, and the axis of the first gear 51 and the axis of the second gear 52 define a first plane, and the abutting surface 43 is parallel to the first plane. By arranging the abutting surface 43 to be parallel to the first plane, the area of the abutting surface 43 can be increased, and after the assembly of the housing body 31, the stress surface of the first housing 41 and the second housing 42 can be increased.

[0089] The first plane and the abutting surface 43 coincide, which can improve the stability of the input end of the transmission mechanism 50 in the first shell 41 and the second shell 42.

[0090] The actuator 100 further comprises an output member 53 and a linear motion component 54, the driving mechanism 10 is connected with the output member 53 through the transmission mechanism 50; the linear motion component 54 extends along the actuation direction (for example, the direction shown by e1 in FIG. 1), and the output member 53 cooperates with the linear motion component 54 to drive the linear motion component 54 to move linearly along the actuation direction.

[0091] During the driving of the vehicle, when the posture of the vehicle body needs to be adjusted, the driving mechanism 10 drives the linear motion component 54 to move along the actuation direction through the transmission mechanism 50 and the output member 53, and the linear motion component 54 pushes the wheels and the vehicle body to move relative to each other in the actuation direction, so as to adjust the distance between the wheels and the vehicle body, thereby adjusting the posture of the vehicle body, that is, actively damping the vehicle.

[0092] The driving mechanism 10 has a fast response, which can improve the response speed of the actuator 100, thereby reducing the time required for adjusting the posture of the vehicle body and improving the driving experience of the passengers in the vehicle.

[0093] The transmission mechanism 50 can realize speed reduction and torque increase of the driving mechanism 10, and in the case that the output torque of the output member 53 meets the use requirement, the power of the driving mechanism 10 can be reduced.

[0094] In the actuator 100 provided in some embodiments of the present application, referring to FIGS. 1-2, the transmission mechanism 50 further comprises a first transmission shaft 55 and a second transmission shaft 56, the first transmission shaft 55 extends along the width direction of the linear motion component 54 and extends to both sides of the linear motion component 54 at both ends, one end of the first transmission shaft 55 is connected with the driving mechanism 10, and the first transmission gear 51 is fixed to the other end of the first transmission shaft 55.

[0095] The transmission gear further comprises a second transmission gear 52 coaxially connected with the output member 53, the second transmission gear 52 is engaged with the first transmission gear 51, the diameter of the second transmission gear 52 is greater than that of the first transmission gear 51, the second transmission shaft 56 extends along the width direction of the linear motion component 54, and the second transmission gear 52 and the output member 53 are both sleeved and fixed on the second transmission shaft 56.

[0096] The diameter of the second transmission gear 52 is greater than that of the first transmission gear 51, the second transmission gear 52 is engaged with the first transmission gear 51, the linear speed of the second transmission gear 52 is equal to that of the first transmission gear 51, that is, the angular speed of the second transmission gear 52 is less than that of the first transmission gear 51, so that the transmission mechanism 50 can achieve the purpose of speed reduction of the output shaft.

[0097] When the driving mechanism 10 is in operation, the output shaft of the driving mechanism 10 rotates, and the output shaft can drive the first transmission gear 51 to rotate coaxially, the first transmission gear 51 can drive the second transmission gear 52 to rotate when rotating, and the second transmission gear 52 can drive the output member 53 to rotate synchronously, and the output member 53 can drive the linear motion component 54 to move in the actuating direction when rotating.

[0098] In some embodiments, referring to FIG. 1, the first transmission gear 51, the second transmission gear 52, the output member 53, and the linear motion component 54 all adopt helical teeth, which can ensure that the first transmission gear 51 and the second transmission gear 52, the output member 53 and the linear motion component 54 are more fully and continuously meshed, and ensure the smoothness in the transmission process. In addition, the helix angle of the selected helical teeth is small, which can effectively reduce the axial force and prolong the service life of the first transmission shaft 55 and the second transmission shaft 56.

[0099] For example, the actuator 100 further comprises a coupling 32 connected between the first transmission shaft 55 and the output shaft. The coupling 32 can be used to realize the transmission of torque and rotational speed between the output shaft of the driving mechanism 10 and the first transmission shaft 55, and can also ensure the stability of the transmission of torque and rotational speed between the output shaft of the driving mechanism 10 and the first transmission shaft 55.

[0100] In the actuator 100 provided in some embodiments of the present application, referring to FIGS. 1-2, the two ends of the first transmission shaft 55 coaxial with the first transmission gear 51 are respectively installed in the housing body 31 through two first bearings. When the first transmission shaft 55 rotates, the first transmission shaft 55 can rotate coaxially with the inner rings of the two first bearings relative to the outer rings of the two first bearings, which can reduce the friction when the first transmission shaft 55 rotates, so that the first transmission shaft 55 rotates more smoothly.

[0101] The two ends of the second transmission shaft 56 coaxial with the second transmission gear 52 are respectively installed in the housing body 31 through two second bearings. When the second transmission shaft 56 rotates, the second transmission shaft 56 can rotate coaxially with the inner rings of the two second bearings relative to the outer rings of the two second bearings, which can reduce the friction when the second transmission shaft 56 rotates, so that the second transmission shaft 56 rotates more smoothly.

[0102] The housing body 31 has a first window 451 and a second window 452, the first window 451 is located at one axial end of the first transmission shaft 55, and the second window 452 is located at one axial end of the second transmission shaft 56. The first window 451 and the second window 452 are arranged on the housing body 31, which can facilitate the assembly of the first transmission shaft 55 and the second transmission shaft 56.

[0103] The shell body 31 comprises a first end cover 46 and a second end cover 47. The first end cover 46 is detachably mounted at the first window 451 and can be detached from the first window 451. The second end cover 47 is detachably mounted at the second window 452 and can be detached from the second window 452. The first end cover 46 and the second end cover 47 can play a sealing role to prevent moisture, dust and the like from falling into the shell body 31.

[0104] For example, a plurality of third connecting holes 462 are arranged on the peripheral wall of the first end cover 46, and a plurality of fourth connecting holes 455 are arranged on the shell body 31. The number of the third connecting holes 462 is equal to and corresponds to the number of the fourth connecting holes 455. A bolt can be arranged in the third connecting hole 462 and the fourth connecting hole 455 to fix the first end cover 46 to the shell body 31.

[0105] For another example, a plurality of fifth connecting holes 471 are arranged on the peripheral wall of the second end cover 47, and a plurality of sixth connecting holes 456 are arranged on the shell body 31. The number of the fifth connecting holes 471 is equal to and corresponds to the number of the sixth connecting holes 456. A bolt can be arranged in the fifth connecting hole 471 and the sixth connecting hole 456 to fix the second end cover 47 to the shell body 31.

[0106] In the actuator 100 provided in some embodiments of the present application, referring to FIGS. 1-6, a first boss 461 is arranged on the first end cover 46 and penetrates the first window 451 to abut against the first bearing for positioning the first bearing and facilitating installation and fixation of the first bearing. A second boss is arranged on the second end cover 47 and penetrates the second window 452 to abut against the second bearing for positioning the second bearing and facilitating installation and fixation of the second bearing.

[0107] In some embodiments, a third window 453 and a fourth window 454 are arranged on the shell body 31. The third window 453 is arranged opposite to the first window 451, and the fourth window 454 is arranged opposite to the second window 452. A third boss is arranged in the third window 453 to abut against another first bearing. A fourth boss is arranged in the fourth window 454 to abut against another second bearing. The first transmission shaft 55 is provided with a first shaft shoulder at each end. One first bearing is located between the first shaft shoulder and the first boss 461, and another first bearing is located between the first shaft shoulder and the third boss. The second transmission shaft 56 is provided with a second shaft shoulder at each end. One second bearing is located between the second shaft shoulder and the second boss, and another second bearing is located between the second shaft shoulder and the fourth boss.

[0108] Some embodiments of the present application also provide a suspension assembly, which comprises the actuator 100.

[0109] According to the suspension assembly of the present application, by setting the actuator 100, the suspension assembly can support the vehicle body and mitigate the impact, and the smoothness of the vehicle during driving can be improved, so that the vehicle is more comfortable to ride.

[0110] Some embodiments of the present application also provide a vehicle, which comprises a vehicle body, a wheel, and a suspension assembly. The suspension assembly is arranged between the vehicle body and the wheel, and is used to adjust the relative distance between the vehicle body and the wheel, so that the suspension assembly can support the vehicle body and mitigate the impact, and the smoothness of the vehicle during driving can be improved, so that the vehicle is more comfortable to ride.

[0111] According to the vehicle of the present application, by setting the suspension assembly, the suspension assembly can support the vehicle body and mitigate the impact, and the smoothness of the vehicle during driving can be improved, so that the vehicle is more comfortable to ride.

[0112] In some embodiments of the present application, referring to FIG. 1, a lower fork arm 61 is installed at the lower end of the linear motion component 54, and is used to be connected with the wheel to realize the rigid connection between the actuator 100 and the wheel; a vehicle body connecting plate 62 is installed at the upper end of the housing body 31, and is used to be connected with the vehicle body to realize the rigid connection between the actuator 100 and the vehicle body. When the linear motion component 54 moves, the wheel can be driven to move by the lower fork arm 61 to adjust the relative distance between the wheel and the vehicle body.

[0113] The actuator 100 further comprises a damping elastic member 20, which is located between the housing body 31 and the lower fork arm 61, and is sleeved on the outer circumferential side of the linear motion component 54. The suspension assembly is arranged between the vehicle body and the wheel, and the output shaft of the driving mechanism 10 can be in transmission connection with the variable speed gear, and the driving mechanism 10 is used to adjust the deformation amount of the damping elastic member 20 through the transmission relationship between the variable speed gear, the output member 53 and the linear motion component 54. The variable speed gear can decelerate the rotation speed output by the output shaft of the driving mechanism 10, and after the deceleration processing of the variable speed gear, the time and rate of the deformation amount of the damping elastic member 20 can be within a suitable range. When the damping elastic member 20 deforms, the relative distance between the vehicle body and the wheel can be dynamically adjusted, the vehicle body can be supported and the impact can be mitigated, the smoothness of the vehicle during driving can be improved, and the vehicle is more comfortable to ride.

[0114] When the vehicle runs on a bumpy road, the wheels will jump up and down; when the wheels jump down, the driving mechanism 10 is used to adjust the deformation amount of the damping elastic element 20 through the transmission relationship between the variable speed gear, the output 53 and the linear motion component 54, so as to increase the relative distance between the vehicle body and the wheels, the suspension assembly is used to support the vehicle body, so that the height of the vehicle body remains unchanged, so as to improve the smoothness of the vehicle running. When the wheels jump up, the driving mechanism 10 is used to adjust the deformation amount of the damping elastic element 20 through the transmission relationship between the variable speed gear, the output 53 and the linear motion component 54, so as to reduce the relative distance between the vehicle body and the wheels, the suspension assembly is used to support the vehicle body, so that the height of the vehicle body remains unchanged, so as to improve the smoothness of the vehicle running.

[0115] Although some specific embodiments of the present application have been described in detail by examples, those skilled in the art should understand that the above examples are only for illustration, not for limiting the scope of the present application. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. An actuator housing (101), wherein Comprising: A housing body (31) in which a receiving space (33) accommodating a gear shift mechanism (50) is formed, the housing body (31) comprising a first housing (41) and a second housing (42) provided separately, and an abutting surface (43) of the first housing (41) and the second housing (42) is parallel to an axis of an input end of the gear shift mechanism (50).

2. The actuator housing (101) according to claim 1, wherein The axis of the input end is located in the abutting surface (43).

3. The actuator housing (101) according to claim 1 or 2, wherein A first flange (411) is provided on the first housing (41), and a second flange (421) is provided on the second housing (42), and the first flange (411) and the second flange (421) are fixedly connected by a fixing member.

4. The actuator housing (101) according to claim 3, wherein The first flange (411) has a first positioning portion, and the second flange (421) has a second positioning portion which is positioned and matched with the first positioning portion.

5. The actuator housing (101) according to claim 4, wherein The first positioning portion comprises a first positioning hole (4111), and the second positioning portion comprises a second positioning hole (4211) opposite to the first positioning hole (4111), and the first positioning hole (4111) and the second positioning hole (4211) are positioned and connected by a positioning pin.

6. The actuator housing (101) according to any one of claims 1-5, wherein, A first mounting seat (441) is connected to the first housing (41), a second mounting seat (442) is connected to the second housing (42), the first mounting seat (441) and the second mounting seat (442) are spliced to form a mounting seat (44), and an axle hole which is in communication with the receiving space (33) is formed between the first mounting seat (441) and the second mounting seat (442), a driving mechanism (10) is mounted on the mounting seat (44), and an output shaft of the driving mechanism (10) is adapted to pass through the axle hole and be in transmission connection with the gear shift mechanism (50).

7. The actuator housing (101) according to claim 6, wherein The first mounting seat (441) and the second mounting seat (442) are detachably connected.

8. The actuator housing (101) according to claim 6 or 7, wherein A first reinforcing rib (4411) is arranged between the first mounting seat (441) and the first housing (41), and a second reinforcing rib is arranged between the second mounting seat (442) and the second housing (42), and the number of the first reinforcing rib (4411) and the second reinforcing rib is multiple.

9. The actuator housing (101) according to any one of claims 6-8, wherein, A positioning structure which is positioned and matched with the driving mechanism (10) is arranged on the mounting seat (44).

10. The actuator housing (101) of claim 9, wherein, The positioning structure comprises a positioning groove (443), a side wall of the positioning groove (443) surrounds an outer circumferential side of an outer shell of the driving mechanism (10), and the axle hole penetrates a bottom wall of the positioning groove (443).

11. The actuator housing (101) according to claim 10, wherein A protruding portion (11) is arranged on the driving mechanism (10) and protrudes towards the first housing (41), the bottom wall of the positioning groove (443) is provided with a recessed portion (444) which is positioned and matched with the protruding portion (11), and the axle hole is located in the recessed portion (444).

12. The actuator housing (101) according to any one of claims 6-11, wherein, The first housing (41) and the first mounting seat (441) are an integral molded part, and / or the second housing (42) and the second mounting seat (442) are an integral molded part.

13. The actuator housing (101) according to any one of claims 1-13, wherein, The variable speed mechanism (50) comprises a variable speed gear, and an inner surface of at least one of the first housing (41) and the second housing (42) has an inner arc surface surrounding an outer peripheral side of the variable speed gear, the inner arc surface being coaxial with the variable speed gear and being spaced apart.

14. The actuator housing (101) according to any one of claims 1-13, wherein, A window is defined between the first housing (41) and the second housing (42), and the actuator housing (101) further comprises an end cover detachably mounted at the window, the first housing (41) and / or the second housing (42) is provided with a protruding ring (34) surrounding the window at the window, and the variable speed mechanism (50) comprises a transmission shaft and a bearing mounted at an end of the transmission shaft, the bearing being located within the protruding ring (34).

15. The actuator housing (101) of claim 14, wherein, The end cover is provided with a boss on a side facing the accommodation space (33), and the boss is used to extend into the protruding ring (34) and abut against the bearing.

16. The actuator housing (101) according to any one of claims 1-15, wherein, At least one limiting member (48) is arranged in the accommodation space (33), and the variable speed mechanism (50) is drivingly connected with a linear motion component (54) moving linearly, and the limiting member (48) is used to limit the activity range of the linear motion component (54).

17. The actuator housing (101) of claim 16, wherein, A guide member is arranged in the accommodation space (33), and the guide member is used to guide the activity direction of the linear motion component (54).

18. The actuator housing (101) according to any one of claims 1-17, wherein, The first housing (41) and / or the second housing (42) is provided with an oil injection hole (49) communicating with the accommodation space (33), and the oil injection hole (49) is arranged opposite to the variable speed mechanism (50).

19. An actuator (100), wherein Comprising a variable speed mechanism (50); The actuator housing (101) according to any one of claims 1-18, wherein the variable speed mechanism (50) is arranged in an accommodation space (33) of the actuator housing (101).

20. The actuator (100) according to claim 19, wherein Further comprising: a driving mechanism (10), an output member (53) and a linear motion component (54), the driving mechanism (10) is connected with the output member (53) through the variable speed mechanism (50), and the linear motion component (54) extends in an actuating direction, and the output member (53) cooperates with the linear motion component (54) to drive the linear motion component (54) to move linearly in the actuating direction.

21. A suspension assembly, wherein, The actuator (100) according to claim 19 or 20.

22. A vehicle, wherein, Comprising: a vehicle body and a vehicle wheel; The suspension assembly according to claim 21, wherein the suspension assembly is connected between the vehicle body and the vehicle wheel.

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