CN221170660U

CN221170660U - Actuator shell, actuator, suspension assembly and vehicle

Info

Publication number: CN221170660U
Application number: CN202420921678.2U
Authority: CN
Inventors: 孙宪猛; 张丰; 张丽萍; 郑亚丽; 杨道宽
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2024-04-29
Filing date: 2024-04-29
Publication date: 2024-06-18
Anticipated expiration: 2034-04-29

Abstract

The utility model discloses an actuator shell, an actuator, a suspension assembly and a vehicle, and relates to the technical field of vehicles. According to the actuator shell, the shell comprises the first shell and the second shell which are arranged in a split mode, the speed change mechanism can be sealed in the accommodating space, and the service life of the speed change mechanism is prolonged; by enabling the abutting surfaces of the first shell and the second shell to be parallel to the axis of the input end of the speed change mechanism, the assembly difficulty of the speed change mechanism can be reduced, the assembly efficiency can be improved, and acting force from the radial direction of the speed change mechanism can be well borne.

Description

Actuator shell, actuator, suspension assembly and vehicle

Technical Field

The utility model relates to the technical field of vehicles, in particular to an actuator shell, an actuator, a suspension assembly and a vehicle.

Background

In the related art, an actuator shell adopted in the actuator belongs to an opening type, water, dust or other solid particles fall to a gear rack structure, so that gear rack meshing is influenced, and the hidden danger of shortening the service life of the gear rack is provided.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems existing in the prior art. To this end, an object of the present utility model is to propose an actuator housing which can increase the operational life of the gear change mechanism; and the installation, the disassembly and the maintenance of the speed change mechanism can be facilitated.

The utility model further provides an actuator with the actuator shell.

The utility model further provides a suspension assembly with the actuator.

The utility model further provides a vehicle with the suspension assembly.

An actuator housing according to an embodiment of a first aspect of the present utility model includes: the gear box comprises a shell, wherein an accommodating space for accommodating a speed change mechanism is formed in the shell, the shell comprises a first shell and a second shell which are arranged in a split mode, and the butt joint surface of the first shell and the butt joint surface of the second shell are parallel to the axis of the input end of the speed change mechanism.

According to the actuator shell disclosed by the embodiment of the utility model, the shell comprises the first shell and the second shell which are arranged in a split manner, so that the speed change mechanism can be sealed in the accommodating space, water, dust or other impurities in the external environment are prevented from entering the accommodating space, and the service life of the speed change mechanism is prolonged; the installation, the disassembly and the maintenance of the speed change mechanism can be facilitated; by enabling the abutting surfaces of the first shell and the second shell to be parallel to the axis of the input end of the speed change mechanism, the assembly difficulty of the speed change mechanism can be reduced, the assembly efficiency can be improved, and acting force from the radial direction of the speed change mechanism can be well borne.

In some embodiments of the utility model, the axis of the input is located within the interface.

In some embodiments of the present utility model, the first shell is provided with a first flange, the second shell is provided with a second flange, and the first flange and the second flange are fixedly connected through a fixing piece.

In some embodiments of the present utility model, the first flange has a first positioning portion thereon, and the second flange has a second positioning portion thereon that is in positioning engagement with the first positioning portion.

In some embodiments of the present utility model, the first positioning portion includes a first positioning hole, the second positioning portion includes a second positioning hole opposite to the first positioning hole, and the first positioning hole and the second positioning hole are in positioning connection through a positioning pin.

In some embodiments of the present utility model, 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, a shaft hole communicated 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 suitable for being in transmission connection with the speed change mechanism through the shaft hole.

In some embodiments of the utility model, the first mount is removably connected to the second mount.

In some embodiments of the present utility model, a first reinforcing rib is disposed between the first mounting seat and the first housing, a second reinforcing rib is disposed between the second mounting seat and the second housing, and the number of the first reinforcing rib and the number of the second reinforcing ribs are all plural.

In some embodiments of the present utility model, the mounting base is provided with a positioning structure that is in positioning engagement with the driving mechanism.

In some embodiments of the utility model, the positioning structure includes a positioning groove, a side wall of the positioning groove surrounds an outer peripheral side of the housing of the driving mechanism, and the shaft hole penetrates a bottom wall of the positioning groove.

In some embodiments of the present utility model, the driving mechanism is provided with a protruding portion protruding toward the first housing, the bottom wall of the positioning groove is provided with a recessed portion in which the protruding portion is in positioning fit, and the shaft hole is located in the recessed portion.

In some embodiments of the utility model, the first housing and the first mount are integrally formed and/or the second housing and the second mount are integrally formed.

In some embodiments of the present utility model, the speed change mechanism includes a speed change gear, and an inner surface of at least one of the first housing and the second housing has an intrados surface surrounding an outer peripheral side of the speed change gear, the intrados surface being coaxial with the speed change gear and spaced apart.

In some embodiments of the present utility model, a window is defined between the first housing and the second housing, the actuator housing further includes an end cap detachably mounted at the window, the first housing and/or the second housing are provided with a collar surrounding the window at the window, and the speed change mechanism includes a drive shaft and a bearing mounted at an end of the drive shaft, the bearing being located within the collar.

In some embodiments of the utility model, a boss is arranged on the side surface of the end cover facing the accommodating space, and the boss is used for extending into the convex ring to abut against the bearing. In some embodiments of the present utility model, at least one limiting member is disposed in the accommodating space, and the speed change mechanism is in transmission connection with a linear motion component that moves linearly, and the limiting member is used for limiting the movement range of the linear motion component.

In some embodiments of the present utility model, a guide is provided in the accommodation space, the guide being for guiding a moving direction of the linear motion member.

In some embodiments of the present utility model, the first housing and/or the second housing are provided with oil holes communicating with the accommodating space, at least one oil hole is provided, and the oil holes are provided opposite to the speed change mechanism.

In some embodiments of the present utility model, an actuator according to an embodiment of the second aspect of the present utility model includes: a speed change mechanism; according to the actuator housing of the embodiment of the first aspect of the present utility model, the speed change mechanism is installed in the accommodation space of the actuator housing.

According to the actuator provided by the embodiment of the utility model, by arranging the actuator shell, the axis of the input end can be ensured to be accurately transmitted to the speed change mechanism along the axis direction of the input end, so that the operation precision and stability of the actuator are improved, and meanwhile, the effective transmission of power is also facilitated.

In some embodiments of the utility model, further comprising: the driving mechanism is connected with the output piece through the speed change mechanism; the linear motion part extends along the actuating direction, and the output piece is matched with the linear motion part and used for driving the linear motion part to linearly move along the actuating direction.

According to an embodiment of the third aspect of the present utility model, a suspension assembly includes: an actuator according to an embodiment of the above second aspect of the present utility model.

According to the suspension assembly provided by the embodiment of the utility model, the actuator can play a role in supporting a vehicle body and relieving impact, so that the smoothness of the vehicle during running can be improved, and the vehicle is more comfortable to ride.

According to a fourth aspect of the present utility model, a vehicle includes: a vehicle body and wheels; according to the suspension assembly of the embodiment of the third aspect of the present utility model, the suspension assembly is connected between the vehicle body and the wheel.

According to the vehicle provided by the embodiment of the utility model, the suspension assembly can play a role in supporting the vehicle body and relieving impact, so that the smoothness of the vehicle during running can be improved, and the vehicle is more comfortable to ride.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic illustration of an actuator according to an embodiment of the present utility model;

FIG. 2 is a schematic illustration of the engagement of the actuator housing of FIG. 1;

FIG. 3 is a schematic view of the first housing of FIG. 2;

FIG. 4 is a schematic view of the first housing of FIG. 2 at another angle;

FIG. 5 is a schematic view of the second housing of FIG. 2;

Fig. 6 is a schematic view of the first end cap of fig. 2.

Reference numerals:

10. a driving mechanism; 11. a boss;

20. A vibration damping elastic member;

31. a housing; 311. an outer cambered surface; 312. a first intrados surface; 313. a second intrados surface; 32. a coupling; 33. an accommodation space; 34. a convex ring;

41. A first housing; 411. a first flanging; 4111. a first positioning hole; 4112. a first connection hole; 412. a first case body;

42. A second housing; 421. a second flanging; 4211. a second positioning hole; 4212. a second connection hole; 422. a second case body;

43. A butt joint surface;

44. A mounting base; 441. a first mount; 4411. a first reinforcing rib; 442. a second mounting base; 443. a positioning groove; 4431. a first positioning groove; 4432. a second positioning groove; 444. a recessed portion;

451. A first window; 452. a second window; 453. a third window; 454. a fourth window; 455. a fourth connection hole; 456. a sixth connection hole;

46. A first end cap; 461. a first boss; 462. a third connection hole; 47. a second end cap; 471. a fifth connection hole; 48. a limiting piece; 49. an oil filling hole;

50. a speed change mechanism; 51. a first speed change gear; 52. a second speed change gear;

53. An output member; 54. a linear motion member; 55. a first drive shaft; 56. a second drive shaft;

61. a lower yoke; 62. and a vehicle body connecting plate.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

An actuator housing according to an embodiment of the present utility model is described below with reference to fig. 1-6.

As shown in fig. 1 and 2, the actuator housing according to the embodiment of the first aspect of the present utility model includes a housing 31, the housing 31 includes a first housing 41 and a second housing 42, the first housing 41 and the second housing 42 are separately provided, 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 speed change mechanism 50, the abutting surface 43 is planar, so that assembly of the first housing 41 and the second housing 42 can be facilitated.

The speed change mechanism 50 is sealed in the accommodating space 33 in the housing 31, so that water, dust or other impurities in the external environment can be prevented from entering the accommodating space 33, and the service life of the speed change mechanism 50 is prolonged. When the speed change mechanism 50 needs to be repaired or maintained, the first housing 41 and the second housing 42 can be separated, and the repair or maintenance of the speed change mechanism 50 can be facilitated; when the repair or maintenance is completed, the first housing 41 and the second housing 42 may be mounted together.

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, and referring to fig. 1, the speed change mechanism 50 includes the first speed change gear 51, the axis of the first speed change gear 51 is the axis of the input end of the speed change mechanism 50, whereby 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 the table, 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, the operation is simple, and the force from the radial direction of the speed change mechanism 50 can be well received.

According to the actuator of the embodiment of the utility model, the housing 31 comprises the first housing 41 and the second housing 42 which are arranged in a split manner, so that the speed change mechanism 50 can be sealed in the accommodating space 33, water, dust or other impurities in the external environment are prevented from entering the accommodating space 33, and the service life of the speed change mechanism 50 is prolonged; the mounting, dismounting and maintenance of the speed change mechanism 50 can be facilitated; 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 difficulty in assembling the speed change mechanism 50 can be reduced, the assembling efficiency can be improved, and the force from the speed change mechanism 50 in the radial direction can be well received.

In some embodiments of the present utility model, referring to fig. 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 speed change mechanism 50 is coplanar with the abutting surface 43 of the first housing 41 and the second housing 42, so that the assembling difficulty of the speed change mechanism 50 can be further reduced, the assembling efficiency can be improved, and the acting force from the speed change mechanism 50 in the radial direction can be better borne.

In some embodiments of the present utility model, referring to fig. 1 to 6, 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. By providing the first flange 411 and the second flange 421, a fixed connection between the first housing 41 and the second housing 42 can be facilitated.

Optionally, the first flange 411 has a first positioning portion thereon, the second flange 421 has a second positioning portion that is in positioning fit with the first positioning portion, and in one example, the first positioning portion includes a first positioning hole 4111, 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 in positioning connection through a positioning pin.

Referring to the example shown in fig. 1 to 5, the first case 41 includes a first flange 411 and a first case body 412, the first flange 411 is connected to an outer circumferential side of the first case body 412, the second case 42 includes a second flange 421 and a second case body 422, and the second flange 421 is connected to an outer circumferential side of the second case body 422. The first flange 411 is provided with a first positioning hole 4111, the second flange 421 is provided with a second positioning hole 4211, the second positioning hole 4211 is opposite to the first positioning hole 4111, and the assembly positions of the first housing 41 and the second housing 42 can be pre-positioned according to the second positioning hole 4211 and the first positioning hole 4111, so as to improve the accuracy of the assembly positions of the first housing 41 and the second housing 42.

For example, the number of the first positioning holes 4111 may be plural, and the number of the plurality of first positioning holes 4111 may be arranged at intervals along the circumferential direction of the first flange 411; the number of the second positioning holes 4211 may be plural, the number of the plurality of second positioning holes 4211 may be arranged at intervals along the circumferential direction of the second flange 421, and the number of the second positioning holes 4211 is equal to and corresponds to the number of the first positioning holes 4111 one by one, so that the accuracy of the assembly positions of the first housing 41 and the second housing 42 may be further improved.

The first flange 411 is provided with a first connecting hole 4112, 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, and bolts can be sequentially inserted into the second connecting hole 4212 and the first connecting hole 4112 to fixedly connect the first casing 41 and the second casing 42, so that the connection mode of the first casing 41 and the second casing 42 is simple and firm.

For example, the number of the first connecting holes 4112 may be plural, the number of the plurality of first connecting holes 4112 may be plural, the number of the second connecting holes 4212 may be plural, the number of the plurality of second connecting holes 4212 may be plural, the number of the second connecting holes 4212 may be equal to the number of the first connecting holes 4112 and correspond to each other one by one, and the connection firmness of the first housing 41 and the second housing 42 may be further improved.

For example, the first flange 411 may form an angle with the side wall of the first case body 412, and the first flange 411 may form an angle with the side wall of the first case body 412 of 90 °; the second flange 421 can form the contained angle with the lateral wall of second shell body 422, and the contained angle between second flange 421 can be 90 with the lateral wall of second shell body 422, sets up first connecting hole 4112 on first flange 411, sets up second connecting hole 4212 on the second flange 421, makes things convenient for the dismantlement and the installation of first casing 41 and second casing 42.

In some embodiments of the present utility model, referring to fig. 1-5, the wall thickness of at least two areas in the wall of the housing 31 is different, and the housing 31 may have different thicknesses according to the stress requirements, which helps to reduce the weight of the housing 31. For example, the housing 31 includes a first housing 41 and a second housing 42, and the wall thickness of the first housing 41 may be different from the wall thickness of the second housing 42.

Referring to fig. 1 to 5, the first housing 41 is connected with a first mounting seat 441, the second housing 42 is connected with a second mounting seat 442, the first mounting seat 441 and the second mounting seat 442 are spliced to construct a mounting seat 44, a shaft hole communicated with the accommodating space 33 is formed between the first mounting seat 441 and the second mounting seat 442, the driving mechanism 10 is mounted on the mounting seat 44, the driving mechanism 10 can be well fixedly connected with the housing 31 through the mounting seat 44, an output shaft of the driving mechanism 10 is suitable for being in transmission connection with the speed change mechanism 50 through the shaft hole, therefore, by arranging the mounting seat 44, not only the driving mechanism 10 can be well fixedly connected with the housing 31, but also the driving mechanism 10 can be well in transmission connection with the speed change mechanism 50, and, because the driving mechanism 10 is fixedly connected with the housing 31, the transmission between the driving mechanism 10 and the speed change mechanism 50 is stable.

Optionally, the first mounting seat 441 is detachably connected with the second mounting seat 442, so that the reliability of connection between the first housing 41 and the second housing 42 can be better improved, and meanwhile, the driving mechanism 10 can be better fixedly connected with the mounting seat 44 formed by assembling the first mounting seat 441 and the second mounting seat 442.

Optionally, a first reinforcing rib 4411 is disposed between the first mounting seat 441 and the first housing 41, and a second reinforcing rib is disposed between the second mounting seat 442 and the second housing 42, wherein the number of the first reinforcing rib 4411 and the second reinforcing rib is plural. The connection strength between the first mounting seat 441 and the first housing 41 can be improved better by arranging the first reinforcing ribs 4411, and the connection strength between the second mounting seat 442 and the second housing 42 can be improved better by arranging the second reinforcing ribs, so that the driving mechanism 10 can be fixedly connected with the mounting seat 44 formed by assembling the first mounting seat 441 and the second mounting seat 442 better.

In some embodiments of the present utility model, referring to fig. 1-5, the mounting base 44 is provided with a positioning structure that is in positioning engagement with the driving mechanism 10, the positioning structure includes a positioning groove 443, a side wall of the positioning groove 443 surrounds an outer peripheral side of the housing of the driving mechanism 10, and a shaft hole penetrates a bottom wall of the positioning groove 443.

As shown in fig. 1 to 5, in a specific example, 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 spliced, the first positioning groove 4431 and the second positioning groove 4432 are spliced into a positioning groove 443, further, the side wall of the positioning groove 443 may be annular, and the side wall of the annular positioning groove 443 may be coaxially arranged with the output shaft of the driving mechanism 10, thereby, after the driving mechanism 10 is positioned and installed in the positioning groove 443, the stability of the output shaft may be indirectly improved, and by providing the first positioning groove 4431, the assembly of the driving mechanism 10 is facilitated, and the assembly efficiency of the driving mechanism 10 may be improved.

Alternatively, the driving mechanism 10 is provided with a boss 11 protruding toward the first housing 41, the bottom wall of the positioning groove 443 is provided with a recess 444 in which the boss 11 is positioned and fitted, and the shaft hole is located in the recess 444. Therefore, in the cooperation of the driving mechanism 10 and the mounting seat 44, the driving mechanism 10 is positioned by the positioning groove 443, and the protruding portion 11 and the recessed portion 444 are positioned by the cooperation, so that the driving mechanism 10 can be more stably mounted on the mounting seat 44 by the positioning of the two aspects, and the stability of the output shaft can be indirectly improved.

In some embodiments of the present utility model, referring to fig. 1 to 5, the first housing 41 and the first mounting seat 441 are integrally formed, and structural stability is enhanced; the integrated into one piece has reduced the connection interface between the part for the connection between first casing 41 and the first mount pad 441 is more firm reliable, is difficult for appearing not hard up or cracked condition, has improved overall structure's steadiness and durability.

In some embodiments of the present utility model, referring to fig. 1-5, the second housing 42 and the second mount 442 are an integral piece, enhancing structural stability: the integral molding reduces the connection interface between the parts, so that the connection between the second housing 42 and the second mounting seat 442 is firmer and more reliable, the loosening or fracture is not easy to occur, and the stability and durability of the integral structure are improved.

In some embodiments of the present utility model, referring to fig. 1-3, the speed change mechanism 50 includes a speed change gear, and an inner surface of at least one of the first housing 41 and the second housing 42 has an intrados surface surrounding an outer peripheral side of the speed change gear, the intrados surface being coaxial with and spaced apart from the speed change gear.

Referring to an example shown in fig. 1, the speed change gear includes a first speed change gear 51 and a second speed change gear 52 which are meshed, the first speed change gear 51 is in driving connection with an output shaft of the output mechanism, the second speed change gear 52 is a driven gear, the diameter of the second speed change gear 52 is larger than that of the second speed change gear 52, the inner surface of the first shell 41 is provided with a first intrados surface 312 opposite to the first speed change gear 51, the inner surface of the first shell 41 is provided with a second intrados surface 313 opposite to the second speed change gear 52, optionally, the first intrados surface 312 and the second intrados surface 313 can be connected or not connected, the utility model is not limited, and by arranging the intrados surface in the first shell 41, not only is beneficial to the rotation of the speed change gear, but also can improve the structure of the first shell 41 according to actual requirements, so as to reasonably design the inner structure of the first shell 41 and reasonably utilize the inner space of the first shell 41.

It should be noted that the above examples are only examples, and it is understood that the intrados may be configured on both the first housing 41 and the second housing 42, or may be configured on only the second housing 42, which is not limited by the present utility model.

The outer surface of the shell 31 comprises an outer arc surface 311, one outer arc surface 311 is opposite to the first inner arc surface 312, one outer arc surface 311 is opposite to the second inner arc surface 313, the shape of the outer surface of the shell 31 is close to the outer contour of the opposite speed change gear, the outer structure of the shell 31 is reasonably designed, the size of the shell 31 is further reduced, the compact design of the shell 31 is facilitated, the occupied space of the shell 31 is reduced, and the arrangement of other parts adjacent to the shell 31 is facilitated.

In some embodiments of the present utility model, referring to fig. 1-6, a window is defined between the first housing 41 and the second housing 42, the actuator housing further includes an end cap removably mounted at the window, the first housing 41 and/or the second housing 42 are provided with a collar 34 surrounding the window at the window, and the transmission mechanism 50 includes a drive shaft and a bearing mounted at an end of the drive shaft, the bearing being located within the collar 34. That is, the bearing may be assembled on the collar 34, and by providing the window at the position of the collar 34 and the end cap capable of detachably opening or closing the window, the inside of the housing 31 may be inspected and the bearing may be maintained or replaced by opening the end cap without having to disassemble the first housing 41 and the second housing 42, which may improve maintenance efficiency and reduce maintenance costs.

Further, a boss is provided on the side of the end cap facing the first housing 41, and the boss is used for extending into the convex ring 34 to abut against the bearing. Therefore, the bearing can be stably arranged at the end part of the transmission shaft, and is not easy to move in the axial direction of the transmission shaft, so that the transmission shaft can stably transmit power.

In some embodiments of the present utility model, referring to fig. 1-2, at least one limiting member 48 is disposed in the accommodating space 33, and the speed change mechanism 50 is drivingly connected to the linearly moving member 54, and the limiting member 48 is used to limit the movement range of the linearly moving member 54. Referring to a specific example shown in fig. 1, the actuator further includes an output member 53 and a linear motion member 54, and the drive mechanism 10 is connected to the output member 53 via a speed change mechanism 50; the linear motion member 54 extends in the actuation direction (for example, the direction shown by e1 in fig. 1), and the output member 53 cooperates with the linear motion member 54 to drive the linear motion member 54 to move linearly in the actuation direction.

In the running process of the vehicle, when the posture of the vehicle body needs to be adjusted, the driving mechanism 10 drives the linear motion part 54 to linearly move along the action direction through the speed change mechanism 50 and the output piece 53, the linear motion part 54 pushes the wheels and the vehicle body to relatively move along the action direction, and the distance between the wheels and the vehicle body is adjusted, so that the posture of the vehicle body is adjusted, namely, active vibration reduction of the vehicle is realized. The speed change mechanism 50 can realize speed reduction and torque increase of the driving mechanism 10, and can reduce the power of the driving mechanism 10 when the output torque of the output piece 53 meets the use requirement.

Alternatively, one limiting member 48 may be disposed in the housing 31, or a plurality of limiting members 48 may be disposed in the housing 31, where the number of limiting members 48 may be determined according to the specific structure of the linear motion member 54 in the housing 31. The limiting member 48 is used for limiting the movement range of the linear movement member 54, so as to prevent the linear movement member 54 from exceeding a preset range when moving, and thus the linear movement member 54 fails to engage with the output member 53.

In a specific example, two limiting members 48 may be provided, namely, a first limiting member and a second limiting member, and the first limiting member may be located in the housing 31 and located at an upper end of the linear motion member 54, so as to limit an upward movement displacement amount of the linear motion member 54. The second limiting member is adjacent to the engagement position of the linear motion member 54 and the output member 53 and is located above the engagement position of the linear motion member 54 and the output member 53, so as to limit the downward movement displacement of the linear motion member 54, and avoid excessive downward movement displacement of the linear motion member 54, which results in failure of engagement between the linear motion member 54 and the output member 53. The second limiting part can also axially limit the linear motion part 54, so that the meshing force of the output part 53 and the linear motion part 54 can be adjusted in real time, and the output part 53 and the linear motion part 54 can be ensured to maintain a good meshing state.

In some embodiments of the present utility model, referring to fig. 1, at least one guide is provided in the housing 31, and one guide may be provided in the housing 31, or a plurality of guides may be provided in the housing 31. The guide is provided on the outer peripheral side of the linear motion member 54 for guiding the moving direction of the linear motion member 54, and can guide the linear motion member 54 to move in a direction perpendicular to the rotation axis of the output member 53, avoiding the linear motion member 54 from moving in the radial direction.

In a specific example, the guide may be a linear bearing provided at an outer peripheral side of the linear motion member 54, and the sliding friction of the linear motion member 54 and the housing 31 may be converted into rolling friction of the linear motion member 54 and the linear bearing, reducing friction resistance.

In some embodiments of the present utility model, referring to fig. 1 to 3, the first housing 41 and/or the second housing 42 is provided with oil holes 49 communicating with the accommodation space 33, at least one oil hole 49 is provided, and the oil holes 49 are provided opposite to the speed change mechanism 50.

Referring to fig. 2 to 4, in a specific example, at least one oil hole 49 is formed in the housing 31, and one oil hole 49 may be formed in the housing 31, or a plurality of oil holes 49 may be formed in the housing 31. The shell 31 is provided with an oil filling hole 49, the oil filling hole 49 is arranged opposite to the speed change mechanism 50, and lubricating oil can be filled into the shell 31 through the oil filling hole 49, so that friction in the speed change mechanism 50 is reduced, the temperature is lowered, and the service life of the speed change mechanism 50 is ensured. For example, the side wall of the oil filling hole 49 may be provided with threads, and a cover plate may be used to cover the oil filling hole 49, so as to perform a sealing function.

Illustratively, the oil filler hole 49 is provided opposite the first speed gear 51, or the oil filler hole 49 is provided opposite the output member 53. The casing 31 is provided with a plurality of oil holes 49, one oil hole 49 being provided opposite to the first speed change gear 51, and the other oil hole 49 being provided opposite to the output member 53. Lubricating oil can be injected into the shell 31 through the oil injection hole 49 to reduce friction between the first speed changing gear 51 and the second speed changing gear 52, reduce friction between the output piece 53 and the linear motion part 54, play a role in cooling, and ensure the service lives of the speed changing gear, the output piece 53 and the linear motion part 54. For example, the side wall of the oil filling hole 49 may be provided with threads, and a cover plate may be used to cover the oil filling hole 49, so as to perform a sealing function.

An actuator according to an embodiment of the second aspect of the present utility model includes a speed change mechanism 50, and an actuator housing according to the above-described embodiment of the first aspect of the present utility model, the speed change mechanism 50 is installed in the accommodation space 33.

According to the actuator provided by the embodiment of the utility model, by arranging the actuator shell, water, dust or other impurities in the external environment are prevented from entering the accommodating space 33, and the service life of the speed change mechanism 50 is prolonged; the mounting, dismounting and maintenance of the speed change mechanism 50 can be facilitated; and the butt joint surface 43 of the first shell 41 and the second shell 42 is intersected with the axis of the input end of the speed change mechanism 50, and the stress surface of the first shell 41 and the second shell 42 is intersected with the axis of the input end of the speed change mechanism 50, so that the axis of the input end can be accurately transmitted to the speed change mechanism 50 along the axis direction of the input end, the running precision and the stability of the whole system are improved, and meanwhile, the effective transmission of power is also facilitated.

In some embodiments of the utility model, the actuator further comprises: the driving mechanism 10, the output member 53 and the linear motion member 54, the driving mechanism 10 being connected to the output member 53 through the speed change mechanism 50; the linear motion member 54 extends in the actuation direction, and the output 53 cooperates with the linear motion member 54 for driving the linear motion member 54 to move linearly in the actuation direction.

Referring to one specific example shown in fig. 1 to 6, the speed change mechanism 50 includes a first speed change gear 51 and a second speed change gear 52 that are engaged with each other, and a plane defined by an axis of the first speed change gear 51 and an axis of the second speed change gear 52 is a first plane, and the abutting surface 43 is parallel to the first plane. By providing the abutting surface 43 and the first plane, the area of the abutting surface 43 can be increased, and the stress surfaces of the first housing 41 and the second housing 42 can be increased after the housing 31 is assembled.

The first plane is coincident with the abutment surface 43, which improves the stability of the input end of the transmission mechanism 50 in the first housing 41 and the second housing 42.

The actuator further comprises an output member 53 and a linear motion member 54, and the driving mechanism 10 is connected to the output member 53 through the speed change mechanism 50; the linear motion member 54 extends in the actuation direction (for example, referring to the direction e1 in fig. 1), and the output member 53 cooperates with the linear motion member 54 to drive the linear motion member 54 to linearly move in the actuation direction.

In the running process of the vehicle, when the posture of the vehicle body needs to be adjusted, the driving mechanism 10 drives the linear motion part 54 to move along the action direction through the speed change mechanism 50 and the output piece 53, the linear motion part 54 pushes the wheels and the vehicle body to move relatively in the action direction, and the distance between the wheels and the vehicle body is adjusted, so that the posture of the vehicle body is adjusted, namely active vibration reduction of the vehicle is realized.

The driving mechanism 10 responds faster, and the response speed of the actuator can be improved, so that the time required for adjusting the posture of the vehicle body is reduced, and the driving experience of personnel in the vehicle is improved.

The speed change mechanism 50 can realize speed reduction and torque increase of the driving mechanism 10, and can reduce the power of the driving mechanism 10 when the output torque of the output piece 53 meets the use requirement.

In some embodiments of the present utility model, referring to fig. 1-2, the transmission mechanism 50 further includes: the first transmission shaft 55 and the second transmission shaft 56, the first transmission shaft 55 extends in the width direction of the linear motion member 54 and both ends extend to both sides of the linear motion member 54, respectively, one end of the first transmission shaft 55 is connected to the driving mechanism 10, and the first speed change gear 51 is fixed to the other end of the first transmission shaft 55.

The speed change gear further comprises a second speed change gear 52 coaxially connected with the output member 53, the second speed change gear 52 is meshed with the first speed change gear 51, the diameter of the second speed change gear 52 is larger than that of the first speed change gear 51, the second transmission shaft 56 extends along the width direction of the linear motion member 54, and the second speed change gear 52 and the output member 53 are sleeved and fixed on the second transmission shaft 56.

The diameter of the second speed changing gear 52 is larger than that of the first speed changing gear 51, the second speed changing gear 52 is meshed with the first speed changing gear 51, the linear speed of the second speed changing gear 52 is equal to that of the first speed changing gear 51, namely, the angular speed of the second speed changing gear 52 is smaller than that of the first speed changing gear 51, and the speed changing mechanism 50 can achieve the purpose of reducing the rotating speed output by the output shaft.

When the driving mechanism 10 operates, an output shaft of the driving mechanism 10 rotates, the output shaft can drive the first speed-changing gear 51 to coaxially rotate, the first speed-changing gear 51 can drive the second speed-changing gear 52 to rotate when rotating, the second speed-changing gear 52 can drive the output piece 53 to synchronously rotate, and the output piece 53 can drive the linear motion part 54 to move when rotating, so that the linear motion part 54 can move along the actuating direction.

In one example, referring to fig. 1, the first speed-changing gear 51, the second speed-changing gear 52, the output piece 53 and the linear motion component 54 all adopt helical teeth, so that the first speed-changing gear 51, the second speed-changing gear 52, the output piece 53 and the linear motion component 54 can be meshed more fully and continuously, smoothness in the transmission process is ensured, the helical angle of the helical teeth selected in the next step is smaller, the axial force can be effectively reduced, and the service lives of the first transmission shaft 55 and the second transmission shaft 56 are prolonged.

For example, the actuator further includes a coupling 32, and the coupling 32 is connected to connect the first transmission shaft 55 and the output shaft. The coupling 32 may be used to achieve torque and rotational speed transfer between the output shaft of the drive mechanism 10 and the first drive shaft 55, and may also ensure stability of torque and rotational speed transfer between the output shaft of the drive mechanism 10 and the first drive shaft 55.

In some embodiments of the present utility model, referring to fig. 1-2, two ends of a first transmission shaft 55 coaxial with a first speed change gear 51 are respectively installed in a housing 31 through two first bearings, and when the first transmission shaft 55 rotates, the first transmission shaft 55 may rotate coaxially with inner rings of the two first bearings relative to outer rings of the two first bearings, so that friction force during rotation of the first transmission shaft 55 may be reduced, and the first transmission shaft 55 may rotate more smoothly.

Two ends of the second transmission shaft 56 coaxial with the second speed change gear 52 are respectively installed in the housing 31 through two second bearings, and when the second transmission shaft 56 rotates, the second transmission shaft 56 can rotate with inner rings of the two second bearings coaxially relative to outer rings of the two second bearings, so that friction force when the second transmission shaft 56 rotates can be reduced, and the second transmission shaft 56 rotates more smoothly.

The housing 31 has a first window 451 and a second window 452, the first window 451 being located at an axial end of the first transmission shaft 55, and the second window 452 being located at an axial end of the second transmission shaft 56. The first window 451 and the second window 452 are provided on the housing 31, so that the assembly of the first transmission shaft 55 and the second transmission shaft 56 can be facilitated.

The housing 31 includes a first end cap 46 and a second end cap 47, the first end cap 46 being detachably mounted at the first window 451, the first end cap 46 being detachable from the first window 451; the second end cap 47 is detachably mounted at the second window 452, the second end cap 47 can be detached from the second window 452, and the first end cap 46 and the second end cap 47 can function as a seal to prevent moisture, dust, etc. from falling into the housing 31.

For example, a plurality of third connecting holes 462 are formed in the peripheral wall of the first end cap 46, a plurality of fourth connecting holes 455 are formed in the housing 31, the number of the third connecting holes 462 is equal to the number of the fourth connecting holes 455 and corresponds to one another, and bolts may be inserted through the third connecting holes 462 and the fourth connecting holes 455 to fix the first end cap 46 to the housing 31.

For another example, a plurality of fifth connection holes 471 are formed in the peripheral wall of the second end cover 47, a plurality of sixth connection holes 456 are formed in the housing 31, the number of fifth connection holes 471 and the number of sixth connection holes 456 are equal and correspond one to one, and bolts may be inserted through the fifth connection holes 471 and the sixth connection holes 456 to fix the second end cover 47 to the housing 31.

In some embodiments of the present utility model, referring to fig. 1-6, a first boss 461 is provided on the first end cover 46, and the first boss 461 passes through the first window 451 to be used for abutting against the first bearing, so as to be used for positioning the first bearing, and facilitate installation and fixation of the first bearing. The second end cover 47 is provided with a second boss, and the second boss passes through the second window 452 to be used for abutting with a second bearing, so as to position the second bearing, and facilitate the installation and fixation of the second bearing.

In one example, a third window 453 and a fourth window 454 are provided on the housing 31, the third window 453 being disposed opposite the first window 451, and the fourth window 454 being disposed opposite the second window 452. A third boss is provided in the third window 453 for abutment with another first bearing; a fourth boss is provided in the fourth window 454 for abutment with another second bearing. The two ends of the first transmission shaft 55 are respectively provided with a first shaft shoulder, one first bearing is positioned between the first shaft shoulder and the first boss 461, and the other first bearing is positioned between the first shaft shoulder and the third boss. The second transmission shaft 56 is provided with second shoulders at both ends thereof, respectively, one second bearing being located between the second shoulder and the second boss, and the other second bearing being located between the second shoulder and the fourth boss.

According to the suspension assembly provided by the embodiment of the utility model, through the arrangement of the actuator, the suspension assembly can play roles in supporting a vehicle body and relieving impact, so that the smoothness of the vehicle during running can be improved, and the vehicle is more comfortable to ride.

According to a fourth aspect of the present utility model, a vehicle includes: a vehicle body and a wheel, a suspension assembly according to the above-described third aspect of the present utility model. The suspension assembly is arranged between the vehicle body and the wheels, and is used for adjusting the relative distance between the vehicle body and the wheels, so that the suspension assembly can play a role in supporting the vehicle body and relieving impact, and the smoothness of the vehicle during running can be improved, so that the vehicle is more comfortable to ride.

In a specific example, referring to fig. 1, a lower fork arm 61 is mounted at the lower end of the linear motion member 54, the lower fork arm 61 being for connection to a wheel for achieving a rigid connection between the actuator and the wheel; a vehicle body connection plate 62 is mounted at the upper end of the housing 31, and the vehicle body connection plate 62 is used for being connected with a vehicle body and realizing rigid connection between an actuator and the vehicle body. When the linear motion part 54 moves, the lower fork arm 61 can drive the wheels to move so as to adjust the relative distance between the wheels and the vehicle body.

The actuator further includes a vibration damping elastic member 20, the vibration damping elastic member 20 is located between the housing 31 and the lower yoke 61, and the vibration damping elastic member 20 is sleeved on the outer peripheral side of the linear motion member 54. The suspension assembly is arranged between the vehicle body and the wheels, the output shaft of the driving mechanism 10 can be in transmission connection with a speed change gear, the driving mechanism 10 is used for adjusting the deformation amount of the vibration reduction elastic piece 20 through the transmission relation among the speed change gear, the output piece 53 and the linear motion part 54, the speed change gear can be used for carrying out speed reduction processing on the rotation speed output by the output shaft of the driving mechanism 10, and after the speed change gear is used for speed reduction processing, the time and the speed of the deformation amount generated by the vibration reduction elastic piece 20 can be in a proper range. When the deformation of the vibration damping elastic member 20 occurs, the relative distance between the vehicle body and the wheels can be dynamically adjusted, the effects of supporting the vehicle body and relieving the impact can be achieved, and the smoothness of the vehicle during running can be improved, so that the vehicle is more comfortable to ride.

When the vehicle runs on a bumpy road, the wheels can jump up and down; when the wheels jump down, the driving mechanism 10 is used for adjusting the deformation amount of the vibration damping elastic member 20 through the transmission relation among the speed change gear, the output member 53 and the linear motion member 54 to increase the relative distance between the vehicle body and the wheels, and the suspension assembly is used for supporting the vehicle body so that the height of the vehicle body is kept unchanged to promote the smoothness of the vehicle when the vehicle runs. When the wheels jump upward, the driving mechanism 10 is used for adjusting the deformation amount of the vibration damping elastic member 20 through the transmission relation among the speed change gear, the output member 53 and the linear motion member 54 so as to reduce the relative distance between the vehicle body and the wheels, and the suspension assembly is used for supporting the vehicle body so that the height of the vehicle body is kept unchanged to promote the smoothness of the vehicle when the vehicle runs.

In the description of the present specification, reference to the terms "some embodiments," "optionally," "further," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. An actuator housing, comprising: the gear box comprises a shell (31), wherein an accommodating space (33) for accommodating a gear box (50) is formed in the shell (31), the shell (31) comprises a first shell (41) and a second shell (42) which are arranged in a split mode, and a butt joint surface (43) of the first shell (41) and the second shell (42) is parallel to an axis of an input end of the gear box (50).

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

3. The actuator housing according to claim 1, wherein a first flange (411) is provided on the first housing (41), 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. An actuator housing according to claim 3, wherein the first flange (411) has a first positioning portion thereon, and the second flange (421) has a second positioning portion thereon that is in positioning engagement with the first positioning portion.

5. The actuator housing according to claim 4, wherein the first positioning portion includes a first positioning hole (4111), 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 in positioning connection by a positioning pin.

6. The actuator housing according to claim 1, wherein the first housing (41) is connected with a first mounting seat (441), the second housing (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), a shaft hole communicated with the accommodating 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 be in transmission connection with the speed change mechanism (50) through the shaft hole.

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

8. The actuator housing according to claim 6, wherein a first stiffener (4411) is provided between the first mounting base (441) and the first housing (41), a second stiffener is provided between the second mounting base (442) and the second housing (42), and the number of the first stiffener (4411) and the second stiffener is plural.

9. The actuator housing according to claim 6, wherein the mounting base (44) is provided with a positioning structure for positioning engagement with the drive mechanism (10).

10. The actuator housing according to claim 9, wherein the positioning structure includes a positioning groove (443), a side wall of the positioning groove (443) surrounds an outer peripheral side of a casing of the drive mechanism (10), and the shaft hole penetrates a bottom wall of the positioning groove (443).

11. Actuator housing according to claim 10, wherein the drive mechanism (10) is provided with a protrusion (11) protruding towards the first housing (41), the bottom wall of the positioning groove (443) is provided with a recess (444) in which the protrusion (11) is positioned, and the shaft hole is located in the recess (444).

12. The actuator housing according to claim 6, wherein the first housing (41) and the first mounting seat (441) are integrally formed and/or the second housing (42) and the second mounting seat (442) are integrally formed.

13. The actuator housing according to claim 1, wherein the speed change mechanism (50) includes a speed change gear, and an inner surface of at least one of the first housing (41) and the second housing (42) has an intrados surface surrounding an outer peripheral side of the speed change gear, the intrados surface being coaxial with the speed change gear and spaced apart.

14. Actuator housing according to claim 1, wherein a window is defined between the first housing (41) and the second housing (42), the actuator housing further comprising an end cap detachably mounted at the window, the first housing (41) and/or the second housing (42) being provided with a collar (34) surrounding the window at the window, the gear change mechanism (50) comprising a drive shaft and a bearing mounted at an end of the drive shaft, the bearing being located within the collar (34).

15. Actuator housing according to claim 14, wherein the side of the end cap facing the receiving space (33) is provided with a boss for extending into the collar (34) for abutment with the bearing.

16. Actuator housing according to claim 1, wherein at least one limiting member (48) is arranged in the receiving space (33), the gear change mechanism (50) is in transmission connection with a linearly moving member (54), and the limiting member (48) is used for limiting the range of motion of the linearly moving member (54).

17. Actuator housing according to claim 16, wherein a guide is provided in the receiving space (33) for guiding the direction of movement of the linear movement member (54).

18. Actuator housing according to claim 1, wherein the first housing (41) and/or the second housing (42) are/is provided with oil filling holes (49) communicating with the accommodation space (33), the oil filling holes (49) being provided with at least one, the oil filling holes (49) being provided opposite to the speed change mechanism (50).

19. An actuator, comprising

A speed change mechanism (50);

The actuator housing according to any one of claims 1-18, said gear change mechanism (50) being mounted in a receiving space (33) of said actuator housing.

20. The actuator of claim 19, further comprising: the device comprises a driving mechanism (10), an output piece (53) and a linear motion component (54), wherein the driving mechanism (10) is connected with the output piece (53) through the speed change mechanism (50); the linear motion part (54) extends along the actuating direction, and the output piece (53) is matched with the linear motion part (54) to drive the linear motion part (54) to linearly move along the actuating direction.

21. A suspension assembly comprising an actuator as claimed in claim 19 or claim 20.

22. A vehicle, characterized by comprising:

A vehicle body and wheels;

The suspension assembly of claim 21, said suspension assembly being connected between said body and said wheel.