CN221347796U - Actuator shell, actuator, suspension assembly and vehicle - Google Patents

Abstract

The utility model discloses an actuator shell, an actuator, a suspension assembly and a vehicle, and relates to the technical field of vehicles, wherein the actuator shell comprises a shell, 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 manner, and the butt joint surface of the first shell and the second shell is intersected with the axis of the input end of the speed change mechanism; the first shell is connected with a mounting seat fixedly connected with the driving mechanism, the mounting seat is provided with a shaft hole communicated with the accommodating space, and an output shaft of the driving mechanism is suitable for penetrating through the shaft hole to be in transmission connection with the speed change mechanism. According to the actuator shell, the abutting surface of the first shell and the second shell is intersected with the axis of the input end of the speed change mechanism, so that the assembly of the speed change mechanism can be facilitated, and the first shell and the second shell can bear axial force and radial force generated by the speed change mechanism well; and the mounting seat avoids the butt joint surface, so that the condition of stress concentration on the butt joint surface is avoided.

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 makes it possible to 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 device 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 a butt joint surface of the first shell and the second shell is intersected with an axis of an input end of the speed change mechanism; the first shell is connected with a mounting seat fixedly connected with the driving mechanism, the mounting seat is provided with a shaft hole communicated with the accommodating space, and an output shaft of the driving mechanism is suitable for penetrating through the shaft hole to be in transmission connection with 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; the assembly of the speed change mechanism can be facilitated by intersecting the abutting surfaces of the first shell and the second shell with the axis of the input end of the speed change mechanism, and the first shell and the second shell can bear axial force and radial force generated by the speed change mechanism well; the mounting seat is positioned on the first shell, and the mounting seat avoids the butt joint surface of the first shell and the second shell, so that the condition of stress concentration on the butt joint surface is avoided.

In some embodiments of the utility model, the axis of the input is perpendicular to 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 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 that is in positioning fit with the protruding portion, and the shaft hole is located in the recessed portion.

In some embodiments of the utility model, a stiffener is connected between the mount and the first housing.

In some embodiments of the utility model, the number of the reinforcing ribs is a plurality.

In some embodiments of the utility model, the first housing and the mount are an integral piece.

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, the first housing has the accommodation space formed therein and an opening allowing the speed change mechanism to be mounted to the accommodation space, and the second housing is mounted at the opening for closing the accommodation space.

In some embodiments of the utility model, the second housing comprises a housing body having a window and an end cap removably mounted at the window, the housing body being provided with a collar surrounding the window, the speed change mechanism comprising a drive shaft and a bearing mounted at an end of the drive shaft, the bearing being mounted within the collar.

In some embodiments of the utility model, a boss is provided on a side of the end cap facing the first housing, the boss being adapted to extend into the collar to abut 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 is provided with an oil filling hole communicating with the accommodation space, the oil filling hole being disposed opposite to the speed change mechanism.

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.

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;

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

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

Reference numerals:

10. a driving mechanism;

20. a vibration damping elastic member;

31. A housing; 311. an outer arcuate surface; 312. a first intrados surface; 313. a second intrados surface;

41. A first housing; 411. a first flanging; 4111. a first positioning hole; 4112. a first connection hole; 412. a first case body; 413. a mounting base; 414. reinforcing ribs; 415. a sidewall of the positioning groove;

42. A second housing; 421. a second flanging; 4211. a second positioning hole; 4212. a second connection hole; 422. a second case body; 4221. a convex ring;

43. An accommodation space;

44. A butt joint surface;

451. A first window; 452. a second window; 453. a third window; 4531. a third boss; 454. a fourth window; 4541. a fourth boss; 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. a linear motion member; 54. a first drive shaft; 55. 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, according to the actuator housing of the embodiment of the present utility model, the actuator housing includes the housing 31, the housing 31 includes the first housing 41 and the second housing 42, the first housing 41 and the second housing 42 are provided separately, and the abutting surface 44 of the first housing 41 and the second housing 42 intersects with the axis of the input end of the speed change mechanism 50, the abutting surface 44 is a plane, so that the 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 43, so that water, dust or other impurities in the external environment can be prevented from entering the accommodating space 43, 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 44 of the first casing 41 and the second casing 42 intersects with the axis of the input end of the speed change mechanism 50, referring to an example shown in fig. 1 and 2, the speed change mechanism 50 includes a first speed change gear 51, and the first casing 41 and the second casing 42 are spliced in the axial direction of the first speed change gear 51, which is beneficial to the assembly of the speed change mechanism 50, and the assembly mode is simple and convenient, in addition, when the first speed change gear 51 rotates, the first casing 41 and the second casing 42 can bear the axial force and the radial force generated by the rotation of the first speed change gear 51 better, and the stability of the actuator can be improved better.

The first housing 41 is connected with a mounting seat 413 fixedly connected with the driving mechanism 10, and referring to the example shown in fig. 1-2, the side, away from the second housing 42, of the first housing 41 is provided with the mounting seat 413, and the driving mechanism 10 can be well fixedly connected with the housing 31 by arranging the mounting seat 413; the mount 413 has a shaft hole communicating with the accommodation space 43, through which an output shaft of the drive mechanism 10 can pass to be in driving connection with the speed change mechanism 50. The mounting seat 413 is located on the first casing 41, and the mounting seat 413 avoids the abutting surface 44 of the first casing 41 and the second casing 42, so that stress concentration on the abutting surface 44 is avoided.

According to the actuator housing 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 43, water, dust or other impurities in the external environment are prevented from entering the accommodating space 43, 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 intersecting the abutment surface 44 of the first housing 41 and the second housing 42 with the axis of the input end of the speed change mechanism 50, the assembly of the speed change mechanism 50 can be facilitated, and the first housing 41 and the second housing 42 can better withstand the axial force and the radial force generated by the speed change mechanism 50; the mounting seat 413 is located on the first casing 41, and the mounting seat 413 avoids the abutting surface 44 of the first casing 41 and the second casing 42, so that stress concentration on the abutting surface 44 is avoided.

In some embodiments of the present utility model, referring to fig. 1-5, the axis of the input is perpendicular to the abutment surface 44, and the axis of the input may be referenced to the axis of the first speed change gear 51 of the speed change mechanism 50, and when the housing 31 is assembled, the axis of the input of the speed change mechanism 50 is perpendicular to the abutment surface 44 of the first housing 41 and the second housing 42, and the first housing 41 and the second housing 42 are better able to withstand the axial force and the radial force generated by the speed change mechanism 50.

In some embodiments of the present utility model, referring to fig. 1 to 5, the first casing 41 is provided with a first flange 411, the second casing 42 is provided with a second flange 421, the first flange 411 and the second flange 421 are fixedly connected by a fixing member, and the first flange 411 and the second flange 421 are provided to facilitate the fixed connection between the first casing 41 and the second casing 42.

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 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 shell body 412, and the angle between the first flange 411 and the side wall of the first shell body 412 may be 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 and the lateral wall of second shell body 422 can be 90, 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.

In some embodiments of the present utility model, referring to fig. 1-5, a mounting seat 413 fixedly connected to the driving mechanism 10 is connected to the first housing 41, referring to the example shown in fig. 1-2, a mounting seat 413 is provided on a side of the first housing 41 facing away from the second housing 42, the driving mechanism 10 can be better fixedly connected to the housing 31 by providing the mounting seat 413, the mounting seat 413 has a shaft hole communicated with the accommodating space 43, an output shaft of the driving mechanism 10 can pass through the shaft hole to be in transmission connection with the speed change mechanism 50, a positioning structure matched with the driving mechanism 10 is provided on the mounting seat 413, and by providing the positioning structure, the mounting efficiency of the driving mechanism 10 can be improved.

Optionally, the positioning structure includes a positioning groove, that is, the positioning groove can be formed on the mounting seat 413 in an integrally formed manner, so that the structure is simple and the positioning effect is good.

Further, the side wall 415 of the positioning groove surrounds the outer peripheral side of the casing of the driving mechanism 10, so that when the driving mechanism 10 is fixedly connected with the mounting seat 413, the casing of the driving mechanism 10 can be partially clamped into the positioning groove, and therefore the position of the driving mechanism 10 can be well limited, and the driving mechanism 10 is further fixedly connected with the positioning groove. In addition, in the example shown in fig. 1 to 4, the side wall 415 of the positioning groove is annular and coaxial with the output shaft of the driving mechanism 10, whereby, by the engagement of the positioning groove with the housing of the driving mechanism 10, the radial direction of the output shaft can also be restrained indirectly well, so that the output shaft can rotate stably.

Optionally, the driving mechanism 10 is provided with a protruding portion protruding toward the first housing 41, the bottom wall of the positioning groove is provided with a recess portion matched with the protruding portion, the shaft hole is located in the recess portion, and the installation efficiency of the driving mechanism 10 can be improved well through positioning matching of the protruding portion and the recess portion.

In a specific example, the mounting seat 413 has a positioning groove opening toward the driving mechanism 10, a side wall 415 of the positioning groove surrounds the outer peripheral side of the housing of the driving mechanism 10, the side wall 415 of the positioning groove is annular, the side wall 415 of the annular positioning groove is coaxial with the output shaft of the driving mechanism 10, a portion of the bottom wall of the positioning groove is formed with a concave portion facing away from the driving mechanism 10, the bottom wall of the concave portion is provided with a shaft hole penetrating through the bottom wall of the concave portion, the housing of the driving mechanism 10 is provided with an annular protruding portion protruding toward the first housing 41, and the annular protruding portion is coaxial with the output shaft of the driving mechanism 10, so that the driving mechanism 10 can be well positioned, and the driving mechanism 10 can be made stable after being mounted.

In some embodiments of the present utility model, referring to fig. 1-4, a reinforcing rib 414 is connected between the mounting seat 413 and the first housing 41, and the reliability of the connection between the mounting seat 413 and the first housing 41 can be improved by the reinforcing rib 414, so that the driving mechanism 10 can be fixedly connected with the housing 31 more stably, and the driving mechanism 10 can transmit power to the speed change mechanism 50 more stably.

Optionally, the reinforcing ribs 414 are provided in plurality, and the reliability of connection between the mounting seat 413 and the first housing 41 can be further improved through the plurality of reinforcing ribs 414, as shown in fig. 1, the plurality of reinforcing ribs 414 are uniformly spaced around the axis of the output shaft of the driving mechanism 10, and in the direction of the axis of the output shaft, the lengths of at least two reinforcing ribs 414 are unequal, and by setting reinforcing ribs 414 with different length sizes, the strength and rigidity of a specific area can be pertinently improved, for example, longer reinforcing ribs 414 are added at the positions where stress is larger or stress concentration is likely to occur. In addition, the reinforcing ribs 414 of different lengths help balance the stress distribution inside the component, preventing localized deformation or cracking due to wall thickness variations or uneven loading.

In some embodiments of the present utility model, referring to fig. 1-4, the first housing 41 and the mounting seat 413 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 casing 31 and mount pad 413 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, 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. 1-3, the speed change gear includes a first speed change gear 51 and a second speed change gear 52 meshed with each other, the first speed change gear 51 is in driving connection with an output shaft of the driving mechanism 10, 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 first speed change gear 51, a first intrados surface 312 opposite to the first speed change gear 51 is provided on an inner surface of the first casing 41, a second intrados surface 313 opposite to the second speed change gear 52 is provided on an inner surface of the second casing 42, optionally, the first intrados surface 312 and the second intrados surface 313 may be connected or not connected.

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

As shown in fig. 2, the outer surface of the housing 31 includes an outer arc surface 311, where the outer arc surface 311 may be disposed opposite to the first inner arc surface 312, and the outer arc surface 311 may also be disposed opposite to the second inner arc surface 313, so that the outer surface of the housing 31 is shaped to be close to the outer contour of the opposite speed change gear, the outer structure of the housing 31 is reasonably designed, the size of the housing 31 is further reduced, compact design of the housing 31 is facilitated, the space occupied by the housing 31 is reduced, and arrangement of other parts adjacent to the housing 31 is facilitated.

In some embodiments of the present utility model, referring to fig. 1 to 4, a receiving space 43 and an opening allowing the speed change mechanism 50 to be mounted to the receiving space 43 are formed in the first housing 41, and the second housing 42 is mounted at the opening for closing the receiving space 43. Thus, by completely fitting the speed change mechanism 50 within the first housing 41, assembly of the speed change mechanism 50 can be simplified while reducing difficulty in connection between the first housing 41 and the second housing 42.

In some embodiments of the present utility model, referring to fig. 5, the second housing 42 includes a housing body, for example, the second housing body 422 described above, having a window, and an end cap removably mounted at the window, the housing body being provided with a collar 4221 surrounding 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 mounted within the collar 4221. That is, the bearing may be assembled on the collar 4221, and by providing the window at the position of the collar 4221 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 a side of the end cap facing the second housing 42, and the boss is configured to extend into the collar 4221 to abut 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, at least one limiting member 48 is disposed in the accommodating space 43, and the speed change mechanism 50 is drivingly connected to the linearly moving member 53, and the limiting member 48 is used to limit the movement range of the linearly moving member 53. Referring to one specific example shown in fig. 1-4, the actuator further includes an output member and a linear motion member 53, and the drive mechanism 10 is connected to the output member via a speed change mechanism 50; the linear motion member 53 extends in the actuation direction (for example, the direction shown by e1 in fig. 1), and the output member cooperates with the linear motion member 53 for driving the linear motion member 53 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 53 to linearly move along the action direction through the speed change mechanism 50 and the output piece, the linear motion part 53 pushes the wheels and the vehicle body to relatively move 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 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 under the condition that the output torque of the output piece 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 53 in the housing 31. The limiting member 48 is used for limiting the movement range of the linear movement member 53, so as to prevent the linear movement member 53 from exceeding a preset range during movement, and thus the engagement between the linear movement member 53 and the output member fails.

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 53, for limiting an upward movement displacement amount of the linear motion member 53. The second limiting member is adjacent to the engagement position of the linear motion member 53 and the output member and is located above the engagement position of the linear motion member 53 and the output member, and is used for limiting the downward movement displacement of the linear motion member 53, so that excessive downward movement displacement of the linear motion member 53 can be avoided, and the engagement failure of the linear motion member 53 and the output member is avoided. The second limiting part can also axially limit the linear motion part 53, so that the magnitude of the meshing force of the output part and the linear motion part 53 can be adjusted in real time, and the output part and the linear motion part 53 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 53 for guiding the moving direction of the linear motion member 53, and can guide the linear motion member 53 to move in a direction perpendicular to the rotation axis of the output member, avoiding the linear motion member 53 from moving in the radial direction.

In a specific example, the guide may be a linear bearing provided on the outer peripheral side of the linear motion member 53, and the sliding friction of the linear motion member 53 with the housing 31 may be converted into rolling friction of the linear motion member 53 with the linear bearing, reducing friction resistance.

In some embodiments of the present utility model, the first housing 41 is provided with an oil filler hole 49 communicating with the accommodation space 43, the oil filler hole 49 being disposed opposite to the speed change mechanism 50. Referring to fig. 1 to 4, at least one oil injection hole 49 is provided in the first housing 41, and one oil injection hole 49 may be provided in the first housing 41, or a plurality of oil injection holes 49 may be provided in the first housing 41. The first housing 41 is provided with an oil hole 49, and the oil hole 49 is disposed opposite to the first speed change gear 51, or the oil hole 49 is disposed opposite to the second speed change gear 52. The first casing 41 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 second speed change gear 52. Lubricating oil is injected into the housing 31 through the oil injection hole 49 to reduce friction between the first speed change gear 51 and the second speed change gear 52, and friction between the output member and the linear motion member 53, and to perform a cooling function to secure the life of the speed change mechanism 50. 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, the speed change mechanism 50 being mounted in the accommodation space 43.

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 43, 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 abutting surface 44 of the first housing 41 and the second housing 42 intersects with the axis of the input end of the speed change mechanism 50.

In some embodiments of the utility model and referring to FIG. 1, the actuator further comprises an output member and a linear motion member 53, the drive mechanism 10 being coupled to the output member via a speed change mechanism 50; the linear motion member 53 extends in the actuation direction (for example, the direction shown by e1 in fig. 1), and the output member cooperates with the linear motion member 53 for driving the linear motion member 53 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 53 to linearly move along the action direction through the speed change mechanism 50 and the output piece, the linear motion part 53 pushes the wheels and the vehicle body to relatively move 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 under the condition that the output torque of the output piece 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 54 and the second transmission shaft 55, the first transmission shaft 54 extends in the width direction of the linear motion member 53 and both ends extend to both sides of the linear motion member 53, respectively, one end of the first transmission shaft 54 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 54.

The speed change gear further comprises a second speed change gear 52 coaxially connected with the output member, 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 55 extends along the width direction of the linear motion part 53, and the second speed change gear 52 and the output member are sleeved and fixed on the second transmission shaft 55.

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 a motor shaft.

When the driving mechanism 10 operates, a motor shaft of the driving mechanism 10 rotates, the motor shaft can drive the first speed change gear 51 to coaxially rotate, the first speed change gear 51 can drive the second speed change gear 52 to rotate when rotating, the second speed change gear 52 can drive the output piece to synchronously rotate, and the output piece can drive the linear motion part 53 to move when rotating, so that the linear motion part 53 can linearly 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 and the linear motion component 53 all adopt helical teeth, so that the first speed-changing gear 51, the second speed-changing gear 52, the output piece and the linear motion component 53 can be meshed more fully and continuously, smoothness in the transmission process is ensured, the helical angle of the helical teeth selected in the second step is smaller, the axial force can be effectively reduced, and the service lives of the first transmission shaft 54 and the second transmission shaft 55 are prolonged.

For example, the actuator further includes a coupling for connecting the first drive shaft 54 to the output shaft. The coupling may be used to transfer torque and rotational speed between the output shaft of the drive mechanism 10 and the first drive shaft 54, and may also ensure stability of the transfer of torque and rotational speed between the output shaft of the drive mechanism 10 and the first drive shaft 54.

In some embodiments of the present utility model, referring to fig. 1-2, two ends of a first transmission shaft 54 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 54 rotates, the first transmission shaft 54 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 54 may be reduced, and the rotation of the first transmission shaft 54 may be smoother.

Two ends of the second transmission shaft 55 coaxial with the second speed change gear 52 are respectively installed in the housing 31 through two second bearings, when the second transmission shaft 55 rotates, the second transmission shaft 55 can rotate with inner rings of the two second bearings coaxially relative to outer rings of the two second bearings, friction force when the second transmission shaft 55 rotates can be reduced, and the second transmission shaft 55 rotates more smoothly.

The second case body 422 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 54, the second window 452 being located at an axial end of the second transmission shaft 55.

The end caps include a first end cap 46 and a second end cap 47, the window includes a first window 451 and a second window 452, the first end cap 46 is removably mounted at the first window 451, and the first end cap 46 is removable 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 second case body 422, 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 second case body 422.

For another example, a plurality of fifth connection holes 471 are formed in the circumferential wall of the second end cover 47, a plurality of sixth connection holes 456 are formed in the second case body 422, the number of fifth connection holes 471 and the number of sixth connection holes 456 are equal and correspond to each other one by 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 second case body 422.

In some embodiments of the present utility model, referring to fig. 2 and 5-6, the first end cover 46 is provided with a first boss 461, 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 first case 41, the third window 453 is disposed opposite to the first window 451, and the fourth window 454 is disposed opposite to the second window 452. The first bearing at the other end of the first transmission shaft 54 is installed in the third window 453, the second bearing at the other end of the second transmission shaft 55 is installed in the fourth window 454, and a third boss 4531 is arranged in the third window 453 and is used for abutting against the first bearing at the other end of the first transmission shaft 54; a fourth boss 4541 is provided in the fourth window 454 for abutment with a second bearing at the other end of the second drive shaft 55.

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, 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.

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.

In a specific example, referring to fig. 1, a lower fork arm 61 is mounted at the lower end of the linear motion member 53, and the lower fork arm 61 is used for being connected with a wheel, so as to realize rigid connection between an 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 53 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 fitted around the outer peripheral side of the linear motion member 53. The suspension assembly is arranged between the vehicle body and the wheels, a motor 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 and the linear motion part 53, the speed change gear can be used for carrying out speed reduction processing on the rotation speed output by the motor shaft of the driving mechanism 10, and after the speed change gear is used for carrying out 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 downwards, the driving mechanism 10 is used for adjusting the deformation amount of the vibration damping elastic piece 20 through the transmission relation among the speed changing gear, the output piece and the linear motion part 53 so as 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, and the smoothness of the vehicle in running is improved. 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 and the linear motion member 53 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 (22)

1. An actuator housing, comprising: a housing (31), wherein an accommodating space (43) for accommodating a speed change mechanism (50) is formed in the housing (31), the housing (31) comprises a first housing (41) and a second housing (42) which are arranged in a split manner, and a butt joint surface (44) of the first housing (41) and the second housing (42) is intersected with an axis of an input end of the speed change mechanism (50);

The first shell (41) is connected with a mounting seat (413) fixedly connected with the driving mechanism (10), the mounting seat (413) is provided with a shaft hole communicated with the accommodating space (43), and 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.

2. The actuator housing according to claim 1, wherein the axis of the input end is perpendicular to the abutment surface (44).

3. The actuator housing of claim 1, wherein the actuator housing is configured to move the actuator housing,

The novel plastic bottle is characterized in that a first flanging (411) is arranged on the first shell (41), a second flanging (421) is arranged on the second shell (42), and the first flanging (411) and the second flanging (421) are fixedly connected through a fixing piece.

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. Actuator housing according to claim 1, wherein the mounting (413) is provided with a positioning structure for positioning engagement with the drive mechanism (10).

7. The actuator housing according to claim 6, wherein the positioning structure includes a positioning groove, a side wall (415) of the positioning groove surrounds an outer peripheral side of a casing of the driving mechanism (10), and the shaft hole penetrates a bottom wall of the positioning groove.

8. The actuator housing according to claim 7, wherein the driving mechanism (10) is provided with a protrusion protruding toward the first housing (41), the bottom wall of the positioning groove is provided with a recess in positioning engagement with the protrusion, and the shaft hole is located in the recess.

9. Actuator housing according to claim 1, wherein a stiffening rib (414) is connected between the mounting seat (413) and the first housing (41).

10. The actuator housing according to claim 9, wherein the number of the reinforcing ribs (414) is plural.

11. The actuator housing according to any one of claims 1-10, wherein the first housing (41) and the mounting seat (413) are one-piece.

12. 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.

13. The actuator housing according to claim 1, wherein the first housing (41) has the accommodation space (43) formed therein and an opening allowing the speed change mechanism (50) to be mounted to the accommodation space (43), and the second housing (42) is mounted at the opening for closing the accommodation space (43).

14. The actuator housing according to claim 1, wherein the second housing (42) comprises a housing body having a window and an end cap detachably mounted at the window, the housing body being provided with a collar (4221) surrounding 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 mounted within the collar (4221).

15. Actuator housing according to claim 14, wherein the side of the end cap facing the first housing (41) is provided with a boss for extending into the collar (4221) 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 (43), wherein the gear change mechanism (50) is in driving connection with a linearly moving member (53), and wherein the limiting member (48) is adapted to limit the range of motion of the linearly moving member (53).

17. Actuator housing according to claim 16, wherein a guide is provided in the receiving space (43) for guiding the direction of movement of the linear movement member (53).

18. The actuator housing according to claim 1, wherein an oil filler hole (49) communicating with the accommodation space (43) is provided on the first housing (41), the oil filler hole (49) being provided opposite to the speed change mechanism (50).

19. An actuator, comprising

A speed change mechanism (50);

the actuator housing of any one of claims 1-18, the gear change mechanism (50) being mounted within the receiving space (43).

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