CN110896648A

CN110896648A - Damping structure, chassis suspension structure and vehicle

Info

Publication number: CN110896648A
Application number: CN201880015910.3A
Authority: CN
Inventors: 王振旭; 严绍军
Original assignee: SZ DJI Technology Co Ltd
Current assignee: SZ DJI Technology Co Ltd
Priority date: 2018-05-30
Filing date: 2018-09-18
Publication date: 2020-03-20
Also published as: CN208565375U; WO2019227780A1

Abstract

A damping structure comprises a first connecting piece (10) and a second connecting piece (20) which are sleeved and can rotate relatively, and damping materials are arranged on the sleeved surfaces of the first connecting piece and the second connecting piece; the first connecting piece (10) comprises a first abutting part (11), and the second connecting piece (20) comprises a second abutting part (21) matched with the first abutting part (11); the first abutting part (11) and the second abutting part (21) are oppositely arranged in the axial direction of the rotating shafts of the first connecting piece (10) and the second connecting piece (20), and two ends of the elastic reset piece (30) are simultaneously abutted against two sides of the first abutting part (11) and two sides of the second abutting part (21); when the first connecting piece (10) and the second connecting piece (20) rotate relatively, the first connecting piece (10) and the second connecting piece (20) are reset by the restoring force of the elastic resetting piece (30), a damping effect is generated in the process of returning, and the vibration in the working process is reduced. Still relate to chassis suspension structure and vehicle that adopt this damping structure.

Description

Damping structure, chassis suspension structure and vehicle

Technical Field

The embodiment of the invention belongs to the field of damping structures, and particularly relates to a damping structure, a chassis suspension structure adopting the damping structure and a vehicle.

Background

In some remote control equipment and movable devices, in order to ensure stability, a structure with a centering function or a mechanism with a damping function is widely applied, most of the existing structures with the centering function do not have the damping function, so that the centering process generates vibration to influence operation experience, and the existing structures with the damping function are commonly used in a linear buffering scene and do not have the centering function.

Disclosure of Invention

In order to solve the above problem, an embodiment of the present invention provides a damping structure, which can generate a damping effect during a centering process while providing a centering function, so as to effectively reduce oscillation during a working process.

The embodiment of the invention adopts the following technical scheme.

On one hand, the damping structure provided by the embodiment of the invention comprises a first connecting piece, a second connecting piece and an elastic resetting piece;

the first connecting piece and the second connecting piece are sleeved and can rotate relatively, and damping materials are arranged on the sleeved surfaces of the first connecting piece and the second connecting piece;

the first connecting piece comprises a first abutting part, and the second connecting piece comprises a second abutting part matched with the first abutting part;

the first abutting part and the second abutting part are oppositely arranged in the axial direction of the rotating shafts of the first connecting piece and the second connecting piece, and two ends of the elastic resetting piece are simultaneously abutted against two sides of the first abutting part and two sides of the second abutting part;

when the first connecting piece and the second connecting piece rotate relatively, the first connecting piece and the second connecting piece are reset by the restoring force of the elastic resetting piece.

As an implementable aspect of the present invention, the first connecting piece further includes a first sleeve, the second connecting piece further includes a second sleeve sleeved with the first sleeve, and the damping material is disposed in a fit gap between the first sleeve and the second sleeve.

As an implementable solution of the present invention, the first sleeve is sleeved outside the second sleeve, and the elastic restoring member is sleeved outside the first sleeve;

the side wall of the first sleeve is provided with a notch, the second abutting portion penetrates through the notch to abut against the first abutting portion, and the notch is used for limiting the relative movement range of the first abutting portion and the second abutting portion.

As an implementable aspect of the present invention, at least one first groove structure is formed on a side wall of the first sleeve, and the damping material is filled in the at least one first groove structure; and/or the presence of a gas in the gas,

at least one second groove structure is formed on the side wall of the second sleeve, and the damping material is filled in the at least one second groove structure.

As an implementation scheme of the present invention, when both ends of the elastic restoring element simultaneously abut against the first abutting portion and the second abutting portion, the first groove structure is communicated with the second groove structure.

As an implementable aspect of the present invention, the first connector further includes a third sleeve coaxial with the first sleeve;

the second sleeve is located between the first sleeve and the third sleeve, and the damping material is arranged in a fit clearance of the second sleeve and the third sleeve.

As an implementable aspect of the present invention, the second connector includes a fourth sleeve coaxial with the second sleeve;

the fourth sleeve is sleeved in the third sleeve, and the damping material is arranged in a fit clearance between the third sleeve and the fourth sleeve.

As an implementable aspect of the present invention, the first connector is further configured to connect to a first external element, the second connector is further configured to connect to a second external element, and a connection portion of the second connector, which is configured to connect to the second external element, is disposed on a side away from the second sleeve;

the second connecting piece is arranged at one end cover of the first connecting piece, a through hole is formed in the other end of the first connecting piece, and the through hole is communicated with the third sleeve, so that a third external element connected with the first external element or the second external element can penetrate through the through hole to the outside of the second connecting piece.

As an implementable aspect of the present invention, the first abutting portion and the second abutting portion have fan-shaped sections along the radial direction of the rotating shaft, and have the same central angle; and/or the presence of a gas in the gas,

the first abutting portion and/or the second abutting portion are/is provided with at least one groove.

As an implementable aspect of the present invention, the first connecting element further includes a housing, the elastic resetting element is disposed in the housing, and the housing is configured to limit a radial movable range of the elastic resetting element along the rotating shaft;

the elastic reset piece is a C-shaped plate spring or a special-shaped spring.

As an implementable solution of the present invention, the damping structure further includes a pressing cover, and the pressing cover is fixedly connected to the first connecting member and abuts against the second connecting member.

On the other hand, the chassis suspension structure provided by the embodiment of the invention is applied to a vehicle and comprises the damping structure, the damping structure is arranged at the bottom of the vehicle, a first connecting piece in the damping structure is used for being connected with a driving device of the vehicle, and a second connecting piece in the damping structure is used for being connected with a vehicle body of the vehicle.

As an implementation scheme of the present invention, the damping structure further includes two connecting arms, and the two connecting arms are fixedly connected to the first connecting member and symmetrically arranged with respect to the rotation axis.

As an implementable scheme of the invention, the free ends of the two connecting arms are respectively provided with a mounting cavity, and the mounting cavities are used for accommodating the driving device; and/or the presence of a gas in the gas,

and one surface of each connecting arm, which is far away from the vehicle, is provided with a bar grid structure.

As an implementation solution of the present invention, at least one third groove structure is disposed at an end of the first connecting member away from the second connecting member, the at least one third groove structure is disposed around the rotating shaft, and portions of the at least one third groove structure are communicated with each other.

In another aspect, an embodiment of the present invention provides a vehicle including a vehicle body, a drive device, and the chassis suspension structure described above.

According to the damping structure provided by the embodiment of the invention, the first abutting part and the second abutting part are respectively arranged on the first connecting piece and the second connecting piece which are connected in a rotating manner, and the elastic resetting piece is abutted against the two ends of the first abutting part and the two ends of the second abutting part at the same time, so that the first connecting piece and the second connecting piece reset in a centering manner under the action of the elastic resetting piece when rotating relatively.

Drawings

In order to illustrate the solution of the invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are some embodiments of the invention, and that other drawings may be derived from these drawings by a person skilled in the art without inventive effort.

FIG. 1 is a general schematic view of a damping structure provided in an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a damping structure provided in an embodiment of the present invention;

fig. 3 to 6 are sectional views of the damping structure after the first connecting piece and the second connecting piece rotate relatively according to different embodiments of the present invention;

FIG. 7 is an exploded view of a damping structure provided by an embodiment of the present invention;

FIG. 8 is a side view of a first connector provided in accordance with an embodiment of the present invention;

fig. 9 is a partial side view of the mating portions of the first and second connecting members and the resilient return member according to the embodiment of the present invention;

fig. 10 is a structural view of an elastic restoring member according to an embodiment of the present invention;

FIG. 11 is another exploded view of a damping structure provided in accordance with an embodiment of the present invention;

FIG. 12 is a side view of the damping structure of FIG. 11 after assembly;

FIG. 13 is another side view of the damping structure of FIG. 11 assembled.

Description of reference numerals:

10 first connecting piece

11 first butting part

12 first sleeve

121 notch

122 first groove structure

13 third sleeve

14 casing

15 fixing ear

16 through hole

17 third groove structure

20 second connecting piece

21 second butting part

22 second sleeve

221 second trench structure

23 fourth sleeve

24 connecting part

30 elastic restoring piece

31 first leaf spring

32 second leaf spring

40 pressing cover

50 connecting arm

51 installation cavity

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms "comprising" and "having," and any variations thereof, in the description and claims of this invention and the description of the above figures, are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and in the claims, or in the drawings, are used for distinguishing between different objects and not necessarily for describing a particular sequential order.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

An embodiment of the present invention provides a damping structure, including:

the elastic reset device comprises a first connecting piece, a second connecting piece and an elastic reset piece;

Based on the damping structure, the embodiment of the invention further provides a chassis suspension structure applied to a vehicle, which comprises the damping structure, wherein the damping structure is arranged at the bottom of the vehicle, a first connecting piece in the damping structure is used for being connected with a driving device of the vehicle, and a second connecting piece in the damping structure is used for being connected with a vehicle body of the vehicle.

Based on the chassis suspension structure, the embodiment of the invention also provides a vehicle, which comprises a vehicle body main body, a driving device and the chassis suspension structure.

According to the damping structure provided by the embodiment of the invention, the first abutting part and the second abutting part are respectively arranged on the first connecting piece and the second connecting piece which are connected in a rotating manner, and two ends of the elastic resetting piece are simultaneously abutted against two sides of the first abutting part and two sides of the second abutting part, so that the first connecting piece and the second connecting piece can return to the middle for resetting under the action of the elastic resetting piece when rotating relatively; the damping material is arranged on the sleeve joint face of the first connecting piece and the second connecting piece, a damping effect can be formed in the relative rotation or return resetting process of the first connecting piece and the second connecting piece, vibration is reduced, the first connecting piece and the second connecting piece can stably rotate or reset, the chassis suspension structure and the vehicle adopting the damping structure can enable the vehicle to stably move on an undulating road surface, and the damping structure and the vehicle are more favorable for adapting to different road conditions if jolting of the chassis is reduced and the feeling of shaking is realized.

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

The embodiment of the invention provides a damping structure with a centering function, which can be applied to an operating rod and an operating knob in a remote control device and can also be applied to a chassis suspension structure of a robot and an automobile.

Referring to fig. 1, a general assembly diagram of a damping structure provided in an embodiment of the present invention is shown, where the damping structure includes a first connecting element 10 and a second connecting element 20, and the first connecting element 10 is sleeved with the second connecting element 20 and can rotate relatively; referring further to fig. 2, a cross-sectional view of the damping structure is shown along a radial direction of the rotation axis of the first connecting member 10 and the second connecting member 20, the damping structure further includes an elastic restoring member 30, and the elastic restoring member 30 can perform a restoring function.

Specifically, the first connecting member 10 includes a first abutting portion 11, the second connecting member 20 includes a second abutting portion 21 matched with the first abutting portion 11, and the first abutting portion 11 and the second abutting portion 21 are arranged opposite to each other in the axial direction of the rotating shafts of the first connecting member 10 and the second connecting member 20.

After the damping structure is assembled, in a state that the first connecting member 10 and the second connecting member 20 do not move relatively (as shown in fig. 2), both ends of the elastic restoring member 30 simultaneously abut against both sides of the first abutting portion 11 and both sides of the second abutting portion 21; when the first connecting member 10 and the second connecting member 20 rotate relative to each other by an external force by a certain angle, referring to fig. 3, on a radial cross-sectional view of the rotating shaft of the first connecting member 10 and the second connecting member 20, on a first side of the illustration, the abutting force between one end of the elastic restoring member 30 and the first abutting portion 11 gradually increases, and the abutting force between the first side of the second abutting portion 21 gradually decreases until zero (if the abutting force exists in the initial state), on a second side of the illustration, the abutting force between the other end of the elastic restoring member 30 and the first abutting portion 11 gradually decreases until zero (if the abutting force exists in the initial state), and the abutting force between the other end of the elastic restoring member 30 and the second abutting portion 21 gradually increases, and the abutting force between the first side of the first abutting portion 11 and the second side of the second abutting portion 21 against the elastic restoring member 30 will elastically deform the elastic restoring member 30, thereby generating a restoring force for restoring the first connecting part 10 and the second connecting part 20, and when the external force is removed, the first connecting part 10 and the second connecting part 20 are restored by the restoring force of the elastic restoring part 30.

Further, a damping material is disposed at the nesting surface of the first connecting piece 10 and the second connecting piece 20, and the damping material can generate rotational damping when the first connecting piece 10 and the second connecting piece 20 rotate relatively, so that the oscillation of the first connecting piece 10 and the second connecting piece 20 in the process of resetting is reduced, and the resetting is stable. In this embodiment, the damping material may be damping grease or flexible damping rubber; when damping grease is adopted, the whole fit clearance between the first connecting piece 10 and the second connecting piece 20 can be filled with the damping grease, and the damping between the first connecting piece 10 and the second connecting piece 20 can be changed by setting the damping grease with different viscosities; when flexible damping rubber is adopted, the adjustment of the damping size can be realized by setting the setting amount of the damping rubber or the fitting degree of the damping rubber and the first connecting piece 10 and the second connecting piece 20, for example, a rubber damping block is arranged in the fit clearance between the first connecting piece 10 and the second connecting piece 20, the rubber damping block can be fixed on the side wall of the first connecting piece 10 and/or the second connecting piece 20, and the damping with different sizes can be generated by setting different numbers of rubber damping blocks.

In some possible designs, a damping material may also be provided between the first and

second abutments

11 and 21.

In the embodiment of the present invention, referring back to fig. 2, the first connecting element 10 and the second connecting element 20 are sleeved by a sleeve. Specifically, the first connecting member 10 includes a first sleeve 12, the second connecting member 20 includes a second sleeve 22 sleeved with the first sleeve 12, and the damping material is disposed in a fit gap between the first sleeve 12 and the second sleeve 22.

In an implementation scheme, the first sleeve 12 is sleeved outside the second sleeve 22, and the elastic restoring member 30 is sleeved outside the first sleeve 12, wherein a notch 121 is formed on a side wall of the first sleeve 12, the second abutting portion 21 is supported on the first abutting portion 11 through the notch 121, and the notch 121 is used for limiting a relative movement range of the first abutting portion 11 and the second abutting portion 21.

In another practical solution, the second sleeve 22 may be sleeved outside the first sleeve 12, and the elastic restoring member 30 is sleeved outside the second sleeve 22, at this time, the side wall of the first sleeve 12 does not need to be provided with the notch 121, and structures for limiting the relative movement range of the second abutting portion 11 and the second abutting portion 21 may be arranged on two sides of the first abutting portion 11 or the second abutting portion 21.

Of course, in some possible embodiments, when the first sleeve 12 is sleeved outside the second sleeve 22, the elastic restoring member 30 may also be disposed inside the second sleeve 22, and the first abutting portion 11 and the second abutting portion 21 are both disposed inside the second sleeve 22. Specifically, the side wall of the second sleeve 22 is provided with the notch 121, for example, the first abutting portion 11 is abutted against the second abutting portion 21 through the notch 121, for example, and the notch 121 can also limit the relative movement range of the first abutting portion 11 and the second abutting portion 21. Further, another sleeve on which the elastic resetting member 30 is installed may be disposed inside the second sleeve 22, so that when the elastic resetting member 30 is sleeved on the sleeve, the abutting relationship between the elastic resetting member 30 and the first abutting portion 11 and the second abutting portion 21 may be the same as that in the foregoing embodiment, and meanwhile, a certain interval exists between the elastic resetting member 30 and the second sleeve 22, so as to provide a moving space when the elastic resetting member 30 is elastically deformed.

Or, when the second sleeve 22 is sleeved outside the first sleeve 12, the elastic restoring member 30 may also be disposed inside the first sleeve 12, and at this time, the first abutting portion 11 and the second abutting portion 21 are both disposed inside the first sleeve 12, specifically, a notch 121 is disposed at a position of the first sleeve 12 corresponding to the second abutting portion 21, the second abutting portion 21 passes through a side wall of the first sleeve 12 and abuts against the first abutting portion 11, and the notch 121 may limit a relative movement range of the first abutting portion 11 and the second abutting portion 21. Further, another sleeve for installing the elastic resetting piece 30 is arranged inside the first sleeve 12, so that when the elastic resetting piece 30 is sleeved on the sleeve, the abutting relationship between the elastic resetting piece 30 and the first abutting portion 11 and the second abutting portion 21 can be the same as that in the foregoing embodiment, and meanwhile, a certain interval exists between the elastic resetting piece 30 and the first sleeve 12, so as to provide a moving space for the elastic resetting piece 30 to elastically deform.

It is understood that, in addition to the above description, in practical applications, the relationship between the first sleeve 12, the second sleeve 22, the first abutting portion 11, the second abutting portion 21 and the elastic resetting member 30 may be set correspondingly by adopting other relationships, as long as the first connecting member 1 and the second connecting member 2 can rotate relatively and can be reset to the position before the relative rotation, and this is not limited specifically here.

In an embodiment of the present invention, as shown in fig. 4, at least one first groove structure 122 is formed on a side wall of the first sleeve 12, and the damping material is filled in at least one first groove structure 122; and/or the presence of a gas in the gas,

at least one second groove structure 221 is formed on the side wall of the second sleeve 22, and the damping material is filled in the at least one second groove structure 221.

Specifically, the first groove structure 122 and the second groove structure 221 are both in communication with the fitting gaps of the first sleeve 12 and the second sleeve 22, and the first groove structure 122 and the second groove structure 221 may be annular grooves disposed along the circumferential direction of the rotating shaft, axial grooves disposed along the axial direction of the rotating shaft, or irregular grooves on the first sleeve 12 or the second side wall; further, the first groove structure 122 may extend through the sidewall of the first sleeve 12, and the second groove structure 221 may also extend through the sidewall of the second sleeve 22.

In an alternative, when both ends of the elastic restoring member 30 simultaneously abut against the first abutting portion 11 and the second abutting portion 21 (i.e. in the state shown in fig. 2), the first groove structure 122 is communicated with the second groove structure 221.

In an embodiment of the present invention, referring further to fig. 5, when the first sleeve 12 is sleeved outside the second sleeve 22, the first connecting element 10 further includes a third sleeve 13 coaxial with the first sleeve 12, and the third sleeve 13 can be used for carrying an external element, such as a rotating shaft body for facilitating the relative rotation between the first connecting element 10 and the second connecting element 20; the second sleeve 22 is located between the first sleeve 12 and the third sleeve 13, and the damping material is disposed in a fit gap between the second sleeve 22 and the third sleeve 13. Alternatively, the first sleeve 12 and the third sleeve 13 may be formed by extending outward from the body of the first connecting member 10, or may be connected by other components on the first connecting member 10.

It should be noted that, in the embodiment shown in fig. 5, both the first groove structure 122 and the second groove structure 221 are through grooves, and the fitting clearance between the first sleeve 12 and the second sleeve 22 is communicated with the fitting clearance between the second sleeve 22 and the third sleeve 13 through the second groove structure 221 on the second sleeve 22; however, in other embodiments, the first and

second slot structures

122 and 221 may be blind slots, or the first and

second slot structures

122 and 221 may be absent.

In other embodiments, and with further reference to FIG. 6, the second connector 20 may further include a fourth sleeve 23 coaxial with the second sleeve 22; the fourth sleeve 23 is sleeved in the third sleeve 13, and can cooperate with the third sleeve 13 to carry an external element, such as a rotation shaft body facilitating the relative rotation between the first connecting piece 10 and the second connecting piece 20; the damping material is arranged in a fit clearance between the third sleeve 13 and the fourth sleeve 23. Of course, as an alternative, a groove structure may also be provided on the sleeve sidewall between the third sleeve 13 and the fourth sleeve 23 to accommodate the damping material. Alternatively, the second sleeve 22 and the fourth sleeve 23 may be formed by extending from the body of the second connector 20, or may be connected by other components on the second connector 20.

Further, the exploded view shown in fig. 7 provides an exploded view of a damping structure, in which the rotational shaft body may be a part of the damping structure or an external device, and the sectional view of the damping structure provided in fig. 7 has a sectional view corresponding to fig. 6. In this embodiment, the damping structure further includes a pressing cover 40, and the pressing cover 40 can be fixedly connected to the first connecting member 10 and abut against the second connecting member 20, so as to enhance the fastening degree of the second connecting member 20 to the first connecting member 10. In some embodiments, a side of the second connecting member 20 facing away from the second sleeve 22 is provided with a connecting portion 24, and the connecting portion 24 is used for being connected with a second external element in a matching manner, in this embodiment, the connecting portion 24 protrudes from an end surface of the second connecting member 20 and may include two grooves, the two grooves may form a regular arc shape or a reverse arc shape, and corresponding structures on the second external element may be inserted into the grooves and fixed, such as clamped in the grooves; optionally, the second connecting member 20 includes two connecting portions 24, the two connecting portions 24 cooperate to form a fitting groove of the pressing cover 40, and after the pressing cover 40 abuts against the fitting groove, the pressing cover and the first connecting member 10 may be fixedly connected by a fastener.

The two connecting portions 24 may be symmetrically disposed, and in a direction parallel to the rotation axes of the first connecting member 10 and the second connecting member 20, the first abutting portion 11, the second abutting portion 21, and one of the connecting portions 24 may be sequentially arranged. Meanwhile, since the pressing cover 40 is fixedly connected to the first connecting member 10, the pressing cover 40 can also rotate relative to the second connecting member 20 during the relative rotation of the first connecting member 10 and the second connecting member 20, and thus, since the pressing cover 40 abuts against the engaging groove, the engaging groove will limit the rotation angle of the pressing cover 40 relative to the second connecting member 20. Therefore, optionally, the angular limit range of the gland 40 by the fitting groove may be larger than the angular limit range of the relative movement of the first abutting portion 11 and the second abutting portion 21 by the notch 121 on the first sleeve 12, so as to sufficiently guarantee the relative movement of the first abutting portion 11 and the second abutting portion 21.

Further, as shown in fig. 7, the first connecting member 10 further includes a housing 14, and the first abutting portion 11, the first sleeve 12, and the third sleeve 13 of the first connecting member 10 are all located in the housing 14. The housing 14 has an opening, the second connecting member 20 can be sleeved with the first connecting member 10 by sleeving the first sleeve 12 with the second sleeve 22, and the third sleeve 13 with the fourth sleeve 23, and the second connecting member can be covered on the opening of the housing 14, so that an accommodating space can be formed between the second sleeve 22 and the housing 14. When the elastic restoring member 30 is disposed in the housing 14, the elastic restoring member 30 is located in the accommodating space, and the housing 14 may be configured to limit a radial moving range of the elastic restoring member 30 along the rotating shaft, and optionally, the housing 14 is further provided with a fixing ear 15 for connecting the housing 14 with other components, for example, for connecting with the gland 40, and the fixing ear 15 and the gland 40 may be locked by screws.

Based on the above embodiment of the present invention, the first connecting member 10 is used to connect with a first external element, and the second connecting member 20 is used to connect with a second external element, so that the first external element and the second external element can realize a smooth centering reset when relatively rotating; in an implementation scheme, the second connecting element 20 is covered at one end of the first connecting element 10, as shown in fig. 8, a through hole 16 is formed at the other end of the first connecting element 10, the through hole 16 is communicated with the third sleeve 13, so that a third external element for connecting with the first external element or the second external element is inserted from the through hole 16 to the outside of the second connecting element 20, the third external element can rotate relative to one of the first connecting element 10 and the second connecting element 20 and rotate relative to the other one to be fixed relative to the other one,

the rotating shaft may be a fixed shaft on an external device, or may be a fixed shaft disposed on the first connecting member 10 or the second connecting member 20.

Specifically, in an implementation scheme, when the rotating shaft is a fixed shaft on an external device, if the external device includes the second external element and the second external element, the rotating shaft may be fixedly connected to one of the first external element or the second external element, and may be rotatably connected to the first connecting member 1 and the second connecting member 2. When the rotatably connected one rotates, the elastic restoring piece 30 restores to the initial position; for example, if the fixed shaft body of the external device is fixedly connected to the first external element, when the second connecting member 20 rotates under the action of the external force, i.e., when the second external element rotates relative to the first external element, the second connecting member 20 will also rotate relative to the first connecting member 10, and the elastic restoring member 30 will generate a restoring force, so that the restoring force will restore the second connecting member 20 and the second external element to the initial position after the external force disappears.

In another embodiment, when the rotating shaft is a fixed shaft on the first connecting element 10, the second connecting element 20 will be rotatably connected to the rotating shaft, and if the first connecting element 10 is connected to the first external element and the second connecting element 20 is connected to the second external element, when the second connecting element 20 rotates relative to the first connecting element 10, that is, the second external element rotates relative to the first external element, the second connecting element 20 and the second external element will also be reset by the elastic reset element 30.

Alternatively, in another practical implementation scheme, when the rotating shaft is a fixed shaft on the second connecting part 20, the first connecting part 10 will be rotatably connected with the rotating shaft, and if the first connecting part 10 is connected with the first external element and the second connecting part 20 is connected with the second external element, when the first connecting part 10 rotates relative to the second connecting part 20, that is, the first external element rotates relative to the second external element, the first connecting part 10 and the first external element will be reset under the action of the elastic resetting part 30.

In the embodiment of the present invention, the relative arrangement of the first abutting portion 11 and the second abutting portion 21 in the axial direction of the rotating shaft of the first connecting member 10 and the second connecting member 20 means that the cross sections of the first abutting portion 11 and the second abutting portion 21 along the radial direction of the rotating shaft are completely overlapped or partially overlapped in the axial direction of the rotating shaft, and in fig. 9, (a) and (b) are partial views of a damping structure, (a) shows a situation that the first abutting portion 11 and the second abutting portion 21 are completely overlapped, and (b) shows a situation that the first abutting portion 11 and the second abutting portion 21 are partially overlapped. Of course, in some possible implementations, the cross sections of the first abutting portion 11 and the second abutting portion 21 along the radial direction of the rotating shaft may also be completely free of overlap in the axial direction of the rotating shaft.

Optionally, referring to fig. 2 again, in this embodiment, the radial cross sections of the first abutting portion 11 and the second abutting portion 21 along the rotation axis are all fan-shaped surfaces, and have the same central angle, the circle center corresponding to the fan-shaped surfaces is located on the rotation axis where the first connecting member 10 and the second connecting member 20 rotate relatively, and the fan-shaped surfaces are similar to the fan-shaped surfaces of the hand-operated fan. Since the relative movement between the first connecting element 10 and the second connecting element 20 is a rotational movement, the first abutting portion 11 and the second abutting portion 21 are arranged in a fan-shaped structure, and when the first connecting element 10 and the second connecting element 20 rotate relatively, the friction between the elastic resetting element 30 and the first abutting portion 11 and the second abutting portion 21 can be reduced, specifically, for example, as shown in fig. 3, if the first connecting element 10 rotates from the first side to the second side relative to the second connecting element 20, since the first abutting portion 11 and the second abutting portion 21 are arranged in a fan-shaped structure, at the first side, the part of the elastic resetting element 30 abutting against the first abutting portion 11 does not displace relatively (or has a small displacement) with the first abutting portion 11, and the abrasion of the elastic resetting element 30 and the first abutting portion 11 at the abutting position is reduced. Similarly, on the second side, the part of the elastic restoring member 30 abutting against the second abutting portion 21 does not displace relative to the second abutting portion 21 (or the displacement is small), so that the abrasion of the elastic restoring member 30 and the second abutting portion 21 at the abutting position can be reduced.

Optionally, at least one groove (not shown) is provided on the first abutting portion 11 and/or the second abutting portion 21, and may be used to reduce the overall weight of the damping structure.

In the above embodiment of the present invention, the elastic restoring member 30 may be a C-shaped plate spring or a shaped spring. In an embodiment, when the elastic restoring member 30 is a C-shaped plate spring, it may include a plurality of attached plate springs, and different amounts of the plate springs may obtain different restoring forces, so that the number of the plate springs may be configured according to practical situations, for example, the elastic restoring member 30 shown in fig. 10 includes a first plate spring 31 and a second plate spring 32 attached to each other.

Compared with the prior art, the damping structure provided by the embodiment of the invention has the following advantages:

firstly, the function of returning to the middle and damping is simultaneously achieved, specifically, a first abutting part 11 and a second abutting part 21 are respectively arranged on a first connecting piece 10 and a second connecting piece 20 which are connected in a rotating mode, two ends of an elastic resetting piece 30 are abutted against two ends of the first abutting part 11 and two ends of the second abutting part 21 simultaneously, so that the first connecting piece 10 and the second connecting piece 20 reset in the middle under the action of the elastic resetting piece 30 when rotating relatively, damping materials are arranged on the sleeving surfaces of the first connecting piece 10 and the second connecting piece 20, the damping effect is formed in the returning process, the oscillation in the middle is reduced, and the first connecting piece 10 and the second connecting piece 20 reset stably.

In addition, the damping structure has the advantages that the parts are matched relatively compactly, the whole space volume can be saved, and the layout is easy.

The embodiment of the invention provides a chassis suspension structure, which is applied to a vehicle and comprises the damping structure, wherein the damping structure is arranged at the bottom of the vehicle, a first connecting piece 10 in the damping structure is used for being connected with a driving device of the vehicle, and a second connecting piece 20 in the damping structure is used for being connected with a vehicle body of the vehicle.

In the present embodiment, referring to fig. 11 in combination with the aforementioned fig. 1 to 10, the damping structure further includes one or more connecting arms 50 connected to the first connecting member 10, one end of the connecting arm 50 can be fixedly connected to the housing 14 of the first connecting member 10, and the free end of the connecting arm 50 can be connected to other components of the vehicle bottom. In this embodiment, the damping structure includes two connecting arms 50, and the two connecting arms 50 are fixedly connected to the first connecting member 10 and symmetrically arranged with respect to the rotation axis of the first connecting member 10 and the second connecting member.

Alternatively, the first connecting member 10 and the two connecting arms 50 may be integrally formed.

Optionally, the free ends of the two connecting arms 50 are respectively provided with a mounting cavity 51, and the mounting cavities 51 are used for accommodating the driving device (not shown in the figure), which may be a driving motor or other mechanical driving device. Of course, in other embodiments, other mechanical structures or electrical structures may be mounted in the mounting cavity 51.

Alternatively, as shown in fig. 12, a bar structure is disposed on a side of the two connecting arms 50 away from the vehicle, on one hand, the bar structure can increase the stability of the connecting arms 50, and on the other hand, the bar structure is beneficial to heat dissipation of the driving device in the mounting cavity 51.

As an implementation solution of the present invention, as shown in fig. 13, at least one third groove structure 17 is disposed at an end of the first connecting element 10 away from the second connecting element 20, at least one third groove structure 17 is disposed around the rotating shaft, and portions of at least one third groove structure 17 are communicated with each other, and the provision of the third groove structure 17 can be beneficial to reducing the overall weight of the structure, and can also be used for connecting the first connecting element 10 with other components.

According to the chassis suspension structure provided by the embodiment of the invention, the damping structure is adopted to arrange the first butting part 11 and the second butting part 21 on the first connecting piece 10 and the second connecting piece 20 which are connected in a rotating way respectively, by simultaneously abutting both ends of the elastic restoring member 30 against both ends of the first abutting portion 11 and both ends of the second abutting portion 21, so that the first connecting member 10 and the second connecting member 20 are reset back under the action of the elastic reset member 30 when rotating relatively, wherein by providing the damping material on the socket surfaces of the first connecting member 10 and the second connecting member 20, so that the damping effect is formed in the process of returning, the oscillation in returning is reduced, the first connecting piece 10 and the second connecting piece 20 are stably reset, the stability of the chassis suspension structure is favorably improved, the vehicle adopting the chassis suspension structure can move more stably on an undulating road surface so as to adapt to different road conditions.

The embodiment of the invention also provides a vehicle which comprises a vehicle body main body, a driving device and the chassis suspension structure.

Specifically, the chassis suspension structure includes the damping structure according to the above embodiment, and with reference to fig. 11, the driving member of the driving device may be installed in the installation cavity 51 of the damping structure.

In some embodiments, in order to facilitate the rotation of the first connecting element 10 relative to the second connecting element during the movement of the vehicle, the chassis suspension structure may be connected to the vehicle body via the rotating shaft body. For example, referring to fig. 11, a first connecting member 10 is mounted at the front end of the bottom of the vehicle through a connecting arm 50, that is, is used for connecting with a front driving device of the vehicle, a second connecting member 20 is connected with a vehicle body of the vehicle, and meanwhile, a rotating shaft body can pass through the through hole 16 in the first connecting member 10, the third sleeve 13, the second sleeve 22 to the outside of the second connecting member 20 and be connected with the vehicle body.

It is thus understood that, in conjunction with the above description, the external device may be a vehicle, and the external device may include a second external element that is a vehicle body, a first external element that is a drive device, and a third external element that is a rotation shaft body. Therefore, when the vehicle runs on a rugged and flat road, the wheels of the vehicle can be attached to the ground as much as possible through the relative rotation and centering design of the first connecting piece 10 and the second connecting piece 20, and the shaking feeling during the running process is effectively reduced due to the damping effect formed during the relative rotation of the first connecting piece 10 and the second connecting piece 20.

Of course, it is understood that the chassis suspension structure may be disposed at a rear driving device of the vehicle according to the requirement, and is not particularly limited herein.

Therefore, the vehicle provided by the embodiment of the invention adopts the chassis suspension structure in the embodiment, so that the bumpy feeling or shaking feeling can be effectively reduced when the vehicle moves on an undulating road, and the vehicle can move more stably to adapt to different road conditions.

It is to be understood that the above-described embodiments are merely illustrative of some, but not restrictive, of the broad invention, and that the appended drawings illustrate preferred embodiments of the invention without limiting its scope. This invention may be embodied in many different forms and, on the contrary, these embodiments are provided so that this disclosure will be thorough and complete. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and modifications can be made, and equivalents may be substituted for elements thereof. All equivalent structures made by using the contents of the specification and the attached drawings of the invention can be directly or indirectly applied to other related technical fields, and are also within the protection scope of the patent of the invention.

Claims

1. A damping structure, comprising:

2. The damping structure of claim 1, wherein the first connector further comprises a first sleeve, the second connector further comprises a second sleeve sleeved with the first sleeve, and the damping material is disposed in a fit gap between the first sleeve and the second sleeve.

3. The damping structure of claim 2, wherein the first sleeve is sleeved outside the second sleeve, and the elastic restoring member is sleeved outside the first sleeve;

4. The damping structure according to claim 3, wherein at least one first groove structure is formed on a side wall of the first sleeve, and the damping material is filled in the at least one first groove structure; and/or the presence of a gas in the gas,

5. The damping structure of claim 4, wherein when both ends of the elastic restoring element simultaneously abut against the first abutting portion and the second abutting portion, the first groove structure is communicated with the second groove structure.

6. The damping structure of claim 3, wherein the first connector further comprises a third sleeve coaxial with the first sleeve;

7. The damping structure of claim 6, wherein the second connector comprises a fourth sleeve coaxial with the second sleeve;

8. The damping structure according to claim 7, characterized in that the first connector is further adapted to be connected to a first external element, the second connector is further adapted to be connected to a second external element, a connection portion of the second connector for connection to the second external element being arranged at a side facing away from the second sleeve;

9. The damping structure according to claim 1, wherein the first abutting portion and the second abutting portion are each a sector-shaped surface in a radial section of the rotating shaft, and have the same central angle; and/or the presence of a gas in the gas,

10. The damping structure according to claim 1, wherein the first connecting member further comprises a housing, the elastic restoring member is disposed in the housing, and the housing is configured to limit a moving range of the elastic restoring member along a radial direction of the rotating shaft;

the elastic reset piece is a C-shaped plate spring or a special-shaped spring.

11. The damping structure of claim 1, further comprising a gland fixedly connected to the first connector and abutting against the second connector.

12. A chassis suspension structure is applied to a vehicle and is characterized by comprising a damping structure, wherein the damping structure comprises a first connecting piece, a second connecting piece and an elastic resetting piece;

when the first connecting piece and the second connecting piece rotate relatively, the first connecting piece and the second connecting piece are reset by the restoring force of the elastic resetting piece;

the damping structure is arranged at the bottom of the vehicle, a first connecting piece in the damping structure is used for being connected with a driving device of the vehicle, and a second connecting piece in the damping structure is used for being connected with a vehicle body main body of the vehicle.

13. The chassis suspension structure of claim 12, wherein the first connector further comprises a first sleeve, the second connector further comprises a second sleeve sleeved with the first sleeve, and the damping material is disposed in a fit gap between the first sleeve and the second sleeve.

14. The chassis suspension structure according to claim 13, wherein the first sleeve is sleeved outside the second sleeve, and the elastic restoring member is sleeved outside the first sleeve;

15. The chassis suspension structure according to claim 14, wherein at least one first groove structure is formed on a side wall of the first sleeve, and the damping material is filled in at least one first groove structure; and/or the presence of a gas in the gas,

16. The chassis suspension structure according to claim 15, wherein when both ends of the elastic restoring member simultaneously abut against the first abutting portion and the second abutting portion, the first groove structure communicates with the second groove structure.

17. The chassis suspension structure according to claim 14, wherein the first connector further comprises a third sleeve coaxial with the first sleeve;

18. The chassis suspension structure of claim 17, wherein the second connector includes a fourth sleeve coaxial with the second sleeve;

19. The chassis suspension structure according to claim 18, wherein the first connector is further adapted to be connected to a first external element, the second connector is further adapted to be connected to a second external element, and a connection portion of the second connector to the second external element is provided on a side facing away from the second sleeve;

20. The chassis suspension structure according to claim 12, wherein the first abutting portion and the second abutting portion are each a sector in a radial section of the rotation shaft, and have the same central angle; and/or the presence of a gas in the gas,

21. The chassis suspension structure according to claim 12, wherein the first connecting member further comprises a housing, the elastic restoring member is disposed in the housing, and the housing is used for limiting a moving range of the elastic restoring member along a radial direction of the rotating shaft;

the elastic reset piece is a C-shaped plate spring or a special-shaped spring.

22. The chassis suspension structure according to claim 12, wherein the damping structure further comprises a gland fixedly connected to the first connecting member and abutting against the second connecting member.

23. Chassis suspension arrangement according to claims 12-22, wherein said damping structure further comprises two connecting arms fixedly connected to said first connecting member and symmetrically arranged with respect to said axis of rotation.

24. The chassis suspension structure according to claim 23, wherein the free ends of the two connecting arms are respectively provided with a mounting cavity for accommodating the driving device; and/or the presence of a gas in the gas,

25. The chassis suspension structure according to claim 24, wherein an end of the first link remote from the second link is provided with at least one third slot structure, at least one of the third slot structures is arranged around the rotation axis, and portions of at least one of the third slot structures are in communication with each other.

26. A vehicle is characterized by comprising a vehicle body main body, a driving device and a chassis suspension structure, wherein the chassis suspension structure comprises a damping structure, and the damping structure comprises a first connecting piece, a second connecting piece and an elastic resetting piece;

27. The vehicle of claim 26, characterized in that the first connector further comprises a first sleeve, the second connector further comprises a second sleeve sleeved with the first sleeve, and the damping material is disposed in a fit gap between the first sleeve and the second sleeve.

28. The vehicle of claim 27, wherein the first sleeve is sleeved outside the second sleeve, and the elastic restoring member is sleeved outside the first sleeve;

29. The vehicle of claim 28, characterized in that the first sleeve has at least one first groove structure formed in a sidewall thereof, at least one of the first groove structures being filled with the damping material; and/or the presence of a gas in the gas,

30. The vehicle of claim 29, wherein the first slot structure communicates with the second slot structure when both ends of the resilient return element are simultaneously abutted against the first abutting portion and the second abutting portion.

31. The vehicle of claim 28, characterized in that the first connector further comprises a third sleeve coaxial with the first sleeve;

32. The vehicle of claim 31, characterized in that the second connector comprises a fourth sleeve coaxial with the second sleeve;

33. The vehicle of claim 32, characterized in that the first connector is further adapted to be connected to a first external element, the second connector is further adapted to be connected to a second external element, a connection in the second connector for connection to the second external element being arranged on a side facing away from the second sleeve;

34. The vehicle of claim 26, characterized in that the sections of the first abutting portion and the second abutting portion along the radial direction of the rotating shaft are both fan-shaped surfaces and have the same central angle; and/or the presence of a gas in the gas,

35. The vehicle of claim 26, characterized in that the first connector further comprises a housing, the elastic return member is disposed in the housing, and the housing is configured to define a range of motion of the elastic return member along a radial direction of the rotating shaft;

the elastic reset piece is a C-shaped plate spring or a special-shaped spring.

36. The vehicle of claim 26, characterized in that the damping structure further comprises a gland fixedly connected with the first connector and abutting against the second connector.

37. The vehicle of claims 26-36, characterized in that the damping structure further comprises two connecting arms fixedly connected to the first connecting member and symmetrically arranged with respect to the rotational axis.

38. The vehicle of claim 37, characterized in that the free ends of the two connecting arms are provided with mounting cavities for receiving the driving means, respectively; and/or the presence of a gas in the gas,

39. The vehicle of claim 38, characterized in that an end of the first link remote from the second link is provided with at least one third slot structure, at least one of the third slot structures being disposed about the rotational axis, and portions of at least one of the third slot structures being in communication with each other.