Suspension and vehicle

Abstract

The invention provides a suspension frame and a vehicle. The suspension frame comprises a shell; the motor is fixedly mounted in the shell; the screw rod is rotationally mounted in the shell, and one end of the screw rod is connected with an output shaft of the motor; the first end of the damping assembly extends into the shell and is in sliding connection with the shell, an inner threaded hole is formed in the first end of the damping assembly, and the other end of the screw extends into the inner threaded hole and is in threaded connection with the inner threaded hole; the end, away from the damping assembly, of the shell is connected with one of the vehicle body and the wheels, and the second end of the damping assembly is connected with the other one of the vehicle body and the wheels. Compared with an air suspension, the suspension provided by the invention has the advantages that the problem that a vehicle cannot run normally due to air leakage caused by damage of an air spring is solved, and the reliability of the suspension is high.

Description

Technical Field

[0001] The present application relates to the technical field of automobile parts, and in particular to a suspension and a vehicle. Background Art

[0002] Suspension is the general term for the force transmission connection device between the vehicle body and wheels. Its function is to transmit the force and torque acting between the wheels and the body, to cushion the impact force transmitted to the body by uneven roads, and to attenuate the vibration caused by it to ensure that the vehicle can run smoothly.

[0003] At present, some vehicles use air suspension, that is, air springs are set between the vehicle body and the wheels, and the distance between the vehicle body and the ground is adjusted by inflating and deflating the air springs to increase the height stability of the vehicle body or the passability in complex road conditions.

[0004] However, air springs are relatively fragile. Once the air springs are damaged or leak air, the vehicle will not be able to drive normally. Summary of the invention

[0005] Based on this, the present application provides a suspension and a vehicle to solve the problem in the related art that the air spring is relatively fragile and once the air spring is damaged and leaks, the vehicle will not be able to drive normally.

[0006] In a first aspect, the present application provides a suspension, comprising:

[0007] shell;

[0008] The motor is fixedly mounted inside the housing;

[0009] A screw rod is rotatably mounted inside the housing, and one end of the screw rod is connected to the output shaft of the motor;

[0010] A shock absorbing component, wherein the first end of the shock absorbing component extends into the interior of the housing and is slidably connected to the housing, an internal threaded hole is provided on the first end of the shock absorbing component, and the other end of the screw rod extends into the internal threaded hole and is threadedly connected to the internal threaded hole;

[0011] One end of the shell away from the shock absorbing assembly is connected to one of the vehicle body and the wheel, and the second end of the shock absorbing assembly is connected to the other of the vehicle body and the wheel.

[0012] In a possible implementation, a limiting portion is provided inside the housing, a limiting disk is protruding outwardly from the circumferential surface of the screw, the limiting portion is located between the limiting disk and the motor body, and the limiting portion abuts against the limiting disk.

[0013] In a possible implementation, the suspension further includes a thrust bearing, which is located between the limiting portion and the limiting plate, with one end of the thrust bearing abutting against the limiting portion and the other end of the thrust bearing abutting against the limiting plate.

[0014] In a possible implementation, the housing includes a first shell and a second shell installed on the first shell, the motor body is installed inside the first shell, and the inner side wall of the second shell protrudes inward toward one end of the first shell to form a limiting portion.

[0015] In a possible implementation, the suspension further includes a plurality of limit members mounted on the shell, a plurality of mounting holes for the limit members to extend into are opened on the side wall of the shell, and an end of each limit member extends into the interior of the shell to form a limit portion.

[0016] In one possible implementation, the shock absorbing assembly includes a connecting seat, an elastic member and a shock absorber. The connecting seat is installed at one end of the shock absorber, and the end of the connecting seat away from the shock absorber extends into the interior of the outer shell and is slidably connected to the outer shell. An internal threaded hole is opened on the connecting seat, and the elastic member is sleeved on the shock absorber and the two ends of the elastic member are respectively connected to the two ends of the shock absorber.

[0017] In a possible implementation, a limit block is provided on a circumferential surface of the connecting seat at one end facing the shock absorber, and the limit block is configured to abut against the opening of the housing.

[0018] In a possible implementation, a slide groove is provided on the circumferential surface of the connecting seat, and the extension direction of the slide groove is parallel to the axial direction of the screw rod. A guide block is protruding inwardly on the inner side wall of the shell, and the guide block extends into the interior of the slide groove and is slidably connected to the slide groove.

[0019] In one possible implementation, the suspension also includes a first swing arm, both ends of which are rotatably connected to the vehicle body and the wheel respectively, a mounting portion is formed on the vehicle body, one end of the outer shell away from the shock absorber assembly is rotatably connected to the first swing arm and one of the mounting portions, and the second end of the shock absorber assembly is rotatably connected to the first swing arm and the other of the mounting portions.

[0020] In a second aspect, the present application provides a vehicle, comprising a vehicle body, wheels and the above-mentioned suspension, wherein the suspension is connected between the vehicle body and the wheels.

[0021] The suspension and vehicle provided by the present application include a housing, a motor, a screw and a shock-absorbing assembly. The motor is installed inside the housing, and the housing can protect the motor. The screw is rotatably installed inside the housing, the first end of the shock-absorbing assembly extends into the housing and is slidably connected to the housing, one end of the screw is connected to the output shaft of the motor, and the other end of the screw extends into the internal threaded hole on the first end of the shock-absorbing assembly and is threadedly connected to the internal threaded hole. The end of the housing away from the shock-absorbing assembly and the second end of the shock-absorbing assembly are respectively connected to the vehicle body and the wheel. When the distance between the vehicle body and the ground needs to be adjusted, it is only necessary to control the motor to drive the screw to rotate. When the screw rotates, the shock-absorbing assembly is driven to slide relative to the housing through the thread to adjust the length of the first end of the shock-absorbing assembly extending into the housing, thereby adjusting the height of the suspension to achieve the adjustment of the distance between the vehicle body and the ground. Compared with the air suspension, the problem of the vehicle being unable to drive normally due to damage and leakage of the air spring is avoided, and the reliability of the suspension is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 Schematic diagram of the suspension provided in the embodiment of the present application being connected to the vehicle body and the wheels respectively Figure 1 ;

[0024] Figure 2 Schematic diagram of the suspension provided in the embodiment of the present application being connected to the vehicle body and the wheels respectively Figure 2 ;

[0025] Figure 3 Schematic diagram of the connection between the housing, motor, screw and connecting seat provided in the embodiment of the present application Figure 1 ;

[0026] Figure 4 Schematic diagram of the connection between the housing, motor, screw and connecting seat provided in the embodiment of the present application Figure 2 ;

[0027] Figure 5 Schematic diagram of the connection between the housing, motor, screw and connecting seat provided in the embodiment of the present application Figure 3 .

[0028] Description of reference numerals:

[0029] 100-housing; 110-limiting part; 120-first housing; 130-second housing; 140-limiting member; 150-guide block;

[0030] 200-motor;

[0031] 300-screw; 310-limiting plate;

[0032] 410-connecting seat; 411-internal threaded hole; 412-limiting block; 413-sliding groove; 420-elastic member; 430-shock absorber; 431-cavity seat; 432-piston rod;

[0033] 500-thrust bearing;

[0034] 610-first swing arm; 620-second swing arm;

[0035] 700-vehicle body; 710-installation part;

[0036] 800-wheel; 810-steering knuckle. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme in the embodiment of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals throughout represent the same or similar parts or parts with the same or similar functions. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application. The embodiments of the present application are described in detail below in conjunction with the drawings.

[0038] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are orientations or positional relationships based on the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0040] The terms "first", "second" and "third" (if any) in the specification and claims of this application and the above drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0041] In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or display comprising a series of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, product, or display.

[0042] In the related art, an air spring is arranged between the vehicle body and the wheels, and the distance between the vehicle body and the ground is adjusted by the inflation and deflation of the air spring. However, the air spring is generally made of rubber, and the air spring is easily damaged and leaks due to the impact of external debris or the aging of the rubber, causing the vehicle to be unable to drive normally.

[0043] In view of this, the inventor of the present application has designed a suspension and a vehicle, wherein the suspension includes a housing, a motor, a screw and a shock absorbing assembly. The motor is installed inside the housing, the screw is rotatably installed in the housing and the end of the screw is connected to the output shaft of the motor. The shock absorbing assembly is slidably installed on the housing and threadedly connected to the screw, and the end of the housing away from the shock absorbing assembly and the end of the shock absorbing assembly away from the motor are respectively connected to the vehicle body and the wheel. In this way, when the distance between the vehicle body and the ground needs to be adjusted, it can be achieved by controlling the motor to drive the shock absorbing assembly to slide relative to the housing through the screw. Compared with the use of air springs, the reliability of the suspension is higher.

[0044] The technical solutions of the suspension and the vehicle provided in the embodiments of the present application are described in detail below in conjunction with the accompanying drawings.

[0045] Reference Figure 1 and Figure 2 As shown, the suspension provided by the embodiment of the present application includes a housing 100, a motor 200, a screw 300 and a shock absorbing assembly. The motor 200 is fixedly installed inside the housing 100. The screw 300 is rotatably installed inside the housing 100, and one end of the screw 300 is connected to the output shaft of the motor 200. The first end of the shock absorbing assembly extends into the interior of the housing 100 and is slidably connected to the housing 100. An internal threaded hole 411 is provided on the first end of the shock absorbing assembly, and the other end of the screw 300 extends into the internal threaded hole 411 and is threadedly connected to the internal threaded hole 411. Among them, one end of the housing 100 away from the shock absorbing assembly is connected to one of the vehicle body 700 and the wheel 800, and the second end of the shock absorbing assembly is connected to the other of the vehicle body 700 and the wheel 800.

[0046] The housing 100 has an open end and a closed end that are arranged opposite to each other. After the motor 200 is arranged inside the housing 100, it can be fixed to the closed end of the housing 100 by a fastener. Figure 1 and Figure 2 It is shown that the axial direction of the output shaft of the motor 200 is parallel to the length direction of the housing 100. In a possible implementation, the motor 200 can be a stepper motor to obtain higher rotation accuracy. Schematically, the screw 300 is coaxial with the output shaft of the motor 200, and the output shaft of the motor 200 can be connected to one end of the screw 300 through a spline. In a specific embodiment, a reducer, such as a planetary reducer, can be provided between the output shaft of the motor 200 and the screw 300 to reduce the rotation speed of the screw 300 while increasing the torque output by the motor 200.

[0047] The first end of the shock absorbing assembly extends from the opening end of the housing 100 into the interior of the housing 100. It is worth mentioning that the sliding direction of the shock absorbing assembly and the extension direction of the internal threaded hole 411 on the shock absorbing assembly are parallel to the axial direction of the screw rod 300. It can be understood that during the driving of the vehicle, the shock absorbing assembly can absorb the impact caused by the road surface and improve the driving stability of the vehicle. Figure 1 and Figure 2 As shown, the blocking end of the housing 100 is connected to the vehicle body 700, and the second end of the shock absorbing assembly is connected to the wheel 800. In other embodiments, the second end of the shock absorbing assembly may also be connected to the vehicle body 700, and correspondingly, the blocking end of the housing 100 is connected to the wheel 800. When the screw 300 rotates, the shock absorbing assembly can be driven to slide relative to the housing 100 through the thread to adjust the length of the shock absorbing assembly extending into the interior of the housing 100, so that the wheel 800 moves up and down relative to the vehicle body 700, thereby adjusting the distance between the vehicle body and the ground.

[0048] The suspension provided by the present application can protect the motor 200 through the housing 100, thereby preventing the motor 200 from being damaged by impact from external debris. When the distance between the vehicle body 700 and the ground needs to be adjusted, it is only necessary to control the motor 200 to drive the screw 300 to rotate. When the screw 300 rotates, the thread drives the shock absorbing assembly to slide relative to the housing 100, thereby adjusting the length of the first end of the shock absorbing assembly extending into the interior of the housing 100, thereby adjusting the height of the suspension to adjust the distance between the vehicle body 700 and the ground. Compared with the air suspension, the suspension has high reliability because it avoids the problem of the vehicle being unable to drive normally due to damage and leakage of the air spring.

[0049] In addition, compared to the air suspension, the suspension provided by the present application does not need to be equipped with an air compressor and an air tank, etc., which saves the space of the vehicle body 700 and the vehicle cost, and is conducive to reducing the weight of the vehicle. In addition, compared with the air suspension, the compressor generates compressed air to the air tank, and then the air tank delivers air of a certain pressure to the air spring. Since the suspension provided by the present application is driven by the motor 200, the height adjustment of the suspension is faster and more accurate. The suspension can make a quick response in conjunction with the vehicle automatic driving control program to quickly adjust the distance between the vehicle body and the ground.

[0050] In one embodiment, Figure 1-Figure 3 As shown, a limiting portion 110 is disposed inside the housing 100 , a limiting plate 310 is protruded outwardly on the circumferential surface of the screw rod 300 , and the limiting portion 110 is located between the limiting plate 310 and the body of the motor 200 , and the limiting portion 110 abuts against the limiting plate 310 .

[0051] Schematically, the limiting portion 110 can be an annular structure arranged around the center line of the housing 100, or the limiting portion 110 can also include a plurality of block structures arranged around the center line of the housing 100. Among them, the limiting portion 110 protrudes from the inner wall of the housing 100, and the limiting portion 110 divides the interior of the housing 100 into a first chamber and a second chamber, and the first chamber and the second chamber are interconnected. The body of the motor 200 is installed in the first chamber, and the first end of the shock absorbing assembly is slidably connected to the side wall of the second chamber. Those skilled in the art can set the length of the limiting portion 110 extending out of the inner wall of the housing as needed, and no sole limitation is made here. Exemplarily, the limiting disk 310 can be set on the screw 300 through a one-time molding process, and the shape of the limiting disk 310 can be a suitable shape such as a circle or a square. When the motor 200 drives the screw 300 to rotate, the limiting disk 310 can be against the limiting portion 110.

[0052] When the housing 100 and the shock absorbing assembly are connected to the wheel 800 and the vehicle body 700 respectively, the suspension bears the weight of the vehicle body. The position of the screw rod 300 can be limited by the cooperation between the limiting portion 110 and the limiting plate 310, so as to prevent the screw rod 300 from impacting the motor 200 in the axial direction of the output shaft of the motor 200 under the action of the gravity of the vehicle body, so that the motor 200 only plays a driving role and is not used for bearing, thereby ensuring the reliable operation of the motor 200.

[0053] In a specific embodiment, Figure 1-Figure 5 As shown, the suspension further includes a thrust bearing 500 , which is located between the limiting portion 110 and the limiting plate 310 , with one end of the thrust bearing 500 abutting against the limiting portion 110 and the other end abutting against the limiting plate 310 .

[0054] For example, the output shaft of the motor 200 may pass through the thrust bearing 500 and be connected to one end of the screw 300. The present embodiment does not limit the specific structure of the thrust bearing 500, and those skilled in the art may select a suitable thrust bearing 500 as required, and of course, may also select an existing thrust bearing 500 on the market.

[0055] This structure, by setting a thrust bearing 500 between the limit plate 310 and the limit part 110, the thrust bearing 500 reduces the friction between the limit plate 310 and the limit part 110 while bearing the axial load, ensuring that the motor 200 can smoothly drive the screw 300 to rotate and avoiding wear of the limit part 110 and the limit plate 310.

[0056] In a specific embodiment, Figure 1-Figure 3 As shown, the housing 100 includes a first shell 120 and a second shell 130 installed on the first shell 120 . The body of the motor 200 is installed inside the first shell 120 . The second shell 130 protrudes inwardly toward the inner side wall of one end of the first shell 120 to form a limiting portion 110 .

[0057] The first shell 120 defines a first chamber inside, and the second shell 130 defines a second chamber inside. The first shell 120 and the second shell 130 can be fixed by fastening with fasteners. In a possible implementation, a first flange is provided on the outer peripheral surface of the first shell 120 facing the end of the second shell 130, and a second flange is provided on the outer peripheral surface of the second shell 130 facing the end of the first shell 120. The first shell 120 and the second shell 130 can be fixed by fastening the first flange and the second flange using a plurality of fasteners. Exemplarily, the limiting portion 110 is located at the end of the second shell 130 facing the first shell 120, and the limiting portion 110 can be provided on the inner wall of the second shell 130 by a one-time molding process.

[0058] This structure ensures that the limiting portion 110 of the housing 100 does not hinder the installation of the motor 200. Specifically, during the assembly of the suspension, the motor 200 body can be first fixed to the first housing 120, the second housing 130 can be installed on the first housing 120, and then the screw 300 and the shock absorbing assembly can be installed in sequence.

[0059] In a specific embodiment, Figure 4 As shown, the suspension also includes a plurality of limit members 140 mounted on the housing 100 , a plurality of mounting holes for the limit members 140 to extend into are opened on the side wall of the housing 100 , and an end of each limit member 140 extends into the interior of the housing 100 to form a limit portion 110 .

[0060] Schematically, a plurality of mounting holes are arranged around the center line of the housing 100, and the number of mounting holes can be set as needed, such as three, four or five, etc., which is not limited here. Among them, bolts can be used as the limiter 140, and correspondingly, each mounting hole is a threaded hole matched with the bolt. When the bolt is screwed into the corresponding threaded hole, the head of the bolt abuts against the outer peripheral surface of the housing 100, and the tail end of the bolt extends into the interior of the housing 100 to form the limiter 110.

[0061] This structure ensures that the stopper 110 of the housing 100 does not hinder the installation of the motor 200. During the assembly of the suspension, the motor 200 and the housing 100 can be fixed first, a plurality of stoppers 140 can be installed on the housing 100, and then the screw 300 and the shock absorbing assembly can be installed in sequence.

[0062] In one embodiment, Figure 1 and Figure 2 As shown, the shock absorbing assembly includes a connecting seat 410, an elastic member 420 and a shock absorber 430. The connecting seat 410 is installed at one end of the shock absorber 430. The end of the connecting seat 410 away from the shock absorber 430 extends into the interior of the shell 100 and is slidably connected to the shell 100. An internal threaded hole 411 is opened on the connecting seat 410. The elastic member 420 is sleeved on the shock absorber 430 and the two ends of the elastic member 420 are respectively connected to the two ends of the shock absorber 430.

[0063] Indicatively, Figure 1 and Figure 2 As shown, the shock absorber 430 includes a cavity seat 431 and a piston rod 432. A piston is provided at one end of the piston rod 432, and the piston can slide in the cavity seat 431. Hydraulic oil is provided in the cavity seat 431. A passage for the flow of hydraulic oil is provided on the piston, and the hydraulic oil can play a damping role when flowing in the passage. In a possible implementation, a limit plate is provided on the piston rod 432, and a spring can be used as an elastic member 420. The spring is sleeved on the shock absorber 430, and the two ends of the spring are respectively against the limit plate and the cavity seat 431. The connecting seat 410 is connected to the end of the cavity seat 431 away from the piston rod 432. When the housing 100 is connected to the vehicle body 700, the end of the piston rod 432 away from the cavity seat 431 is connected to the wheel 800.

[0064] With this structure, when the vehicle is traveling on an uneven road, the elastic member 420 can absorb vibration energy, and the damping effect of the shock absorber 430 can reduce the rebound of the elastic member 420, making the vehicle more stable. The motor 200 can adjust the distance between the vehicle body 700 and the ground by adjusting the length of the connecting seat 410 extending into the housing 100 through the screw rod 300.

[0065] In a specific embodiment, Figure 1 and Figure 2 As shown, a limiting block 412 is provided on the peripheral surface of the connecting seat 410 at one end facing the shock absorber 430 , and the limiting block 412 is configured to abut against the opening of the housing 100 .

[0066] The stopper 412 can be disposed on the connection base 410 by an integrated molding process. Schematically, the stopper 412 can be an annular structure, which is located at one end of the connection base 410 facing the shock absorber 430. The opening of the housing 100 is also the open end of the housing 100. When the stopper 412 abuts against the open end of the housing 100, the length of the connection base 410 extending into the interior of the housing 100 is the maximum.

[0067] This structure limits the connecting seat 410 by the cooperation between the limit block 412 and the opening of the shell 100, so that the length of the connecting seat 410 extending into the shell 100 is within a certain range, thereby preventing the connecting seat 410 from extending into the shell 100 too long and squeezing the limit plate 310 of the screw 300 and the limit part 110 of the shell 100, ensuring that the limit plate 310 or the limit part 110 will not be deformed relative to the shell 100, thereby ensuring that the output shaft of the motor 200 will not be subjected to axial load, thereby ensuring the reliable operation of the motor 200.

[0068] In a possible implementation, a limiting structure may be provided on the housing 100 , and the connecting socket 410 may be limited by the limiting structure to prevent the connecting socket 410 from falling out of the housing 100 .

[0069] In a specific embodiment, Figure 5 As shown, a slide groove 413 is provided on the circumferential surface of the connecting seat 410, and the extension direction of the slide groove 413 is parallel to the axial direction of the screw 300. A guide block 150 is protruded inwardly on the inner wall of the shell 100, and the guide block 150 extends into the interior of the slide groove 413 and is slidably connected with the slide groove 413.

[0070] Exemplarily, the end of the slide groove 413 extends to the end of the connection seat 410 away from the shock absorber 430. When the connection seat 410 and the housing 100 are assembled, the guide block 150 on the housing 100 slides from the end of the slide groove 413 to the inside of the slide groove 413. The number of the slide grooves 413 on the connection seat 410 can be one or more, and accordingly, the number of the guide blocks 150 is the same as the number of the slide grooves 413, and each guide block 150 is slidably disposed in the corresponding slide groove 413 in a one-to-one correspondence.

[0071] In other embodiments, the guide block 150 may also be disposed on the connecting seat 410 , and correspondingly, a slide groove 413 cooperating with the guide block 150 is disposed on the inner wall of the housing 100 .

[0072] In this embodiment, when the guide block 150 extends into the slide groove 413, it can guide and limit the connecting seat 410. When the motor 200 drives the screw 300 to rotate, the connecting seat 410 is prevented from rotating with the screw 300. Under the action of the thread, the screw 300 can drive the connecting seat 410 to slide relative to the outer shell 100 when rotating.

[0073] like Figure 1 and Figure 2 As shown, the suspension also includes a first swing arm 610, both ends of which are rotatably connected to the vehicle body 700 and the wheel 800 respectively, a mounting portion 710 is formed on the vehicle body 700, one end of the housing 100 away from the shock absorbing assembly is rotatably connected to the first swing arm 610 and one of the mounting portions 710, and the second end of the shock absorbing assembly is rotatably connected to the first swing arm 610 and the other of the mounting portions 710.

[0074] Exemplarily, the suspension further includes a steering knuckle 810 mounted on the vehicle body 700, and one end of the first swing arm 610 is rotatably connected to the vehicle body 700, and the other end is rotatably connected to the steering knuckle 810. A portion of the vehicle body 700 extends toward the direction of the wheel 800 to form a mounting portion 710, and the mounting portion 710 is located above the suspension. Figure 1 and Figure 2 It is shown that the blocking end of the housing 100 and the second end of the shock absorbing assembly are both provided with ball joints, one of which is rotatably connected to the mounting portion 710 , and the other ball joint is rotatably connected to the first swing arm 610 .

[0075] Optional, such as Figure 1 and Figure 2 As shown, the suspension further includes a second swing arm 620, one end of which is rotatably connected to the vehicle body 700, and the other end of which is rotatably connected to the steering knuckle 810. The second swing arm 620 can improve the reliability of the connection between the wheel 800 and the vehicle body 700.

[0076] In this structure, when the motor 200 drives the shock absorbing assembly to slide relative to the outer shell 100 through the screw 300, the shock absorbing assembly drives the first swing arm 610 to swing relative to the vehicle body 700, so that the wheel 800 at one end of the first swing arm 610 away from the vehicle body 700 is raised or lowered relative to the vehicle body 700, so as to adjust the distance between the vehicle body 700 and the ground.

[0077] The present application also provides a vehicle, comprising a vehicle body 700 , wheels 800 , and the above-mentioned suspension, wherein the suspension is connected between the vehicle body 700 and the wheels 800 .

[0078] The vehicle provided in this embodiment adopts the above suspension, so that the distance between the vehicle body 700 and the ground can be adjusted as needed. In addition, the vehicle suspension is more reliable and is less likely to fail and cause the vehicle to be unable to drive normally. The distance between the vehicle body 700 and the ground can be adjusted more accurately and quickly.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A suspension, characterized in that: include: shell; A motor is fixedly mounted inside the housing; A screw rod is rotatably mounted inside the housing, and one end of the screw rod is connected to the output shaft of the motor; A shock absorbing assembly, wherein the first end of the shock absorbing assembly extends into the interior of the housing and is slidably connected to the housing, an internal threaded hole is provided on the first end of the shock absorbing assembly, and the other end of the screw rod extends into the internal threaded hole and is threadedly connected to the internal threaded hole; One end of the shell away from the shock absorbing assembly is connected to one of the vehicle body and the wheel, and the second end of the shock absorbing assembly is connected to the other of the vehicle body and the wheel.

2. The suspension according to claim 1, characterized in that A limiting portion is arranged inside the housing, a limiting plate is protruded outwardly on the circumferential surface of the screw, the limiting portion is located between the limiting plate and the body of the motor, and the limiting portion abuts against the limiting plate.

3. The suspension according to claim 2, characterized in that The suspension further includes a thrust bearing, which is located between the limiting portion and the limiting plate, with one end of the thrust bearing abutting against the limiting portion and the other end abutting against the limiting plate.

4. The suspension according to claim 2, characterized in that The housing includes a first shell and a second shell installed on the first shell. The motor body is installed inside the first shell. The inner side wall of the second shell protrudes inwardly toward one end of the first shell to form the limiting portion.

5. The suspension according to claim 2, characterized in that The suspension also includes a plurality of limiting members installed on the shell, a plurality of mounting holes for the limiting members to extend into are opened on the side wall of the shell, and an end portion of each limiting member extends into the interior of the shell to form the limiting portion.

6. The suspension according to claim 1, characterized in that The shock absorbing assembly includes a connecting seat, an elastic member and a shock absorber. The connecting seat is installed at one end of the shock absorber, and the end of the connecting seat away from the shock absorber extends into the interior of the shell and is slidably connected to the shell. The internal threaded hole is opened on the connecting seat, and the elastic member is sleeved on the shock absorber and the two ends of the elastic member are respectively connected to the two ends of the shock absorber.

7. The suspension according to claim 6, characterized in that A limiting block is arranged on the peripheral surface of the connecting seat facing one end of the shock absorber, and the limiting block is configured to abut against the opening of the housing.

8. The suspension according to claim 6, characterized in that A slide groove is arranged on the circumferential surface of the connecting seat, and the extending direction of the slide groove is parallel to the axial direction of the screw rod. A guide block is protruded inwardly on the inner side wall of the shell, and the guide block extends into the interior of the slide groove and is slidably connected with the slide groove.

9. The suspension according to any one of claims 1 to 8, characterized in that: The suspension also includes a first swing arm, both ends of which are rotatably connected to the vehicle body and the wheel respectively, a mounting portion is formed on the vehicle body, one end of the housing away from the shock absorber assembly is rotatably connected to the first swing arm and one of the mounting portions, and the second end of the shock absorber assembly is rotatably connected to the first swing arm and the other of the mounting portions.

10. A vehicle, characterized in that: The invention comprises a vehicle body, wheels and the suspension according to any one of claims 1 to 9, wherein the suspension is connected between the vehicle body and the wheels.

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