CN110896647A

CN110896647A - Damping mechanism and movable device

Info

Publication number: CN110896647A
Application number: CN201880016542.4A
Authority: CN
Inventors: 庄彬
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
Anticipated expiration: 2038-09-18
Also published as: CN110896647B; CN208651500U; WO2019227781A1

Abstract

A shock absorption mechanism (2) and a movable device adopting the shock absorption mechanism (2) belong to the technical field of shock absorption, wherein the shock absorption mechanism (2) comprises a base (10), a movable base body (20) and a deformable shock absorption piece (30); the shock absorbing piece (30) is elastically arranged between the base (10) and the movable seat body (20); the base (10) is movably connected with the movable seat body (20) through a first shaft body (40) and a semi-open type guide sleeve (50) sleeved on the first shaft body (40); the first shaft body (40) can reciprocate in the semi-open type sleeve (50), and the fit clearance between the first shaft body (40) and the semi-open type guide sleeve (50) is adjustable. The device can realize the regulation of the fit clearance of the first shaft body (40) of the damping mechanism (2) and the semi-open type guide sleeve (50), and guarantees the unicity of the motion direction of the first shaft body (40) in the semi-open type guide sleeve (50), so that the relative motion between the base (10) and the movable base body (20) is the motion in the single direction, and the effective one-way damping effect is realized.

Description

Damping mechanism and movable device

Technical Field

The embodiment of the invention belongs to the technical field of shock absorption, and particularly relates to a shock absorption mechanism and a movable device adopting the shock absorption mechanism.

Background

The application scenes of the damping mechanism generally include two types, namely multidirectional damping and unidirectional damping, wherein the unidirectional damping mechanism is an auxiliary mechanism used for ensuring that the equipment obtains good damping in a single damping direction.

One-way damper need control the clearance beyond the shock attenuation direction to obtain better one-way shock attenuation effect, the mode that prior art adopted seal cover, spacing collar or unsettled connection piece more often completely cuts off the clearance or vibrations in other directions, in order to realize one-way shock attenuation.

However, the prior art has at least the following problems: the gaps beyond the damping direction, which are introduced by the one-way damping mechanism in actual work, are uncontrollable, and the gaps beyond the damping direction, which can be controlled by adopting a sealing sleeve, a limiting ring or a connecting sheet, are limited, so that the one-way damping effect is influenced, and the rigidity of the part of the one-way damping mechanism beyond the damping direction is influenced.

Disclosure of Invention

In order to solve the above problem, an embodiment of the present invention provides a damping mechanism to solve the problem that in the prior art, the gap control in directions other than the damping direction is limited, and an effective one-way damping effect cannot be achieved. A movable device using the damping mechanism is also provided.

The embodiment of the invention adopts the following technical scheme.

On one hand, the damping mechanism provided by the embodiment of the invention comprises a base, a movable seat body and a deformable damping piece;

the shock absorption piece is elastically arranged between the base and the movable base body;

the base is movably connected with the movable base body through a first shaft body and a semi-open type guide sleeve sleeved on the first shaft body;

the first shaft body can reciprocate in the semi-open type sleeve, and the fit clearance between the first shaft body and the semi-open type guide sleeve is adjustable.

As an implementation solution of the present invention, the damping mechanism further includes an adjusting component, and the adjusting component is used for adjusting the size of the first open groove of the semi-open type guide sleeve.

As an implementation of the present invention, the adjusting assembly includes a clamping member and a first locking member, and the first locking member cooperates with the clamping member to lock the semi-open type guide sleeve.

As an implementable solution of the present invention, the first shaft is fixed on a surface of the movable base facing the base, the clamping member is a semi-open type adjusting sleeve, and the first locking member is a screw;

the semi-open type adjusting sleeve is arranged on the base, and the semi-open type guide sleeve is sleeved in the semi-open type adjusting sleeve;

the two sides of the second open groove of the semi-open type adjusting sleeve are locked into the screw together, and the size of the second open groove is reduced along with the locking of the screw, so that the size of the first open groove is correspondingly reduced.

As an implementation solution of the present invention, at least the second opening portion of the semi-open type adjustment sleeve is partially or completely suspended above the base.

As an implementation scheme of the present invention, two side edges of the first open groove of the semi-open type guide sleeve are locked into the second locking member together, and the size of the first open groove is reduced along with the locking of the second locking member.

As an embodiment of the present invention, the semi-open type guide sleeve is a semi-open type linear bearing or a semi-open type oilless bearing.

As an implementation scheme of the present invention, a second shaft parallel to the first shaft is disposed between the base and the movable base, and the damping member is disposed in cooperation with the second shaft.

As an implementable solution of the present invention, the second shaft is disposed on a surface of the base facing the movable base, and the shock absorbing member is sleeved on the second shaft and abuts against the base;

the movable base body is provided with an installation part matched with the second shaft body, and the damping part and the second shaft body are partially positioned in the installation part.

As an implementable scheme of the invention, the damping piece comprises a damping part and a connecting part, wherein the connecting part is arranged at one end of the damping part close to the movable seat body or at two ends of the damping part respectively;

the installation department is the axial hole, locates the shock attenuation portion is close to the one end of activity pedestal connecting portion are located the axial hole.

As an implementable aspect of the present invention, a flange is provided in the axial hole;

the connecting part comprises a supporting part and a stopping part, the supporting part is accommodated in a clamping hole formed by the surrounding of the flange, and the stopping part is supported on the flange;

the second shaft body is located the locating part is installed to the one end in the axial hole, the locating part at least part protrusion in the terminal surface of second shaft body, the locating part is used for cooperating the base is injectd the activity pedestal and the motion range of damper.

As an implementation solution of the present invention, the semi-open type guide sleeve includes two or more than two, the damping element includes two or more than two, each of the semi-open type guide sleeves is internally sleeved with one of the first shaft bodies, and the semi-open type guide sleeves and the damping element are arranged at intervals and/or in a matrix.

On the other hand, the movable device provided by the embodiment of the invention comprises a main body and a power assembly connected with the main body, wherein the main body is also provided with the damping mechanism, the base is fixedly connected with the main body, and the movable seat body is used for connecting a load.

According to the damping mechanism and the movable device provided by the embodiment of the invention, due to the semi-open structure of the semi-open type guide sleeve, the inner diameter and the outer diameter of the semi-open type guide sleeve can be adjusted, so that the adjustment of the fit clearance between the first shaft body of the damping mechanism and the semi-open type guide sleeve can be realized. The fit clearance between the first shaft body and the semi-open type guide sleeve is adjusted according to the actual working condition of the damping mechanism, so that the unicity of the movement direction of the first shaft body in the semi-open type guide sleeve can be ensured, the relative movement between the base and the movable base body is the movement in the single direction, and the effective one-way damping effect is realized.

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 an overall schematic view of a damper mechanism according to an embodiment of the present invention;

fig. 2 is a schematic view of a movable base provided in the embodiment of the present invention;

FIG. 3 is a partial exploded view of a shock absorbing mechanism provided in accordance with an embodiment of the present invention;

FIG. 4 is a schematic view of a shock absorbing mechanism with portions broken away according to one embodiment of the present invention;

FIG. 5 is a schematic view of a semi-open type guide sleeve according to the present invention;

FIG. 6 is a schematic view of a shock absorbing member provided in accordance with an embodiment of the present invention;

FIG. 7 is a cross-sectional view of a shock absorbing member provided in accordance with an embodiment of the present invention;

FIG. 8 is a cross-sectional view of a damper mechanism in one state according to an embodiment of the present invention;

FIG. 9 is an exploded view of a shock absorbing mechanism provided in accordance with an embodiment of the present invention;

FIG. 10 is a sectional view of the damper mechanism in another state according to the embodiment of the invention;

fig. 11 is a partial schematic view of a mobile device according to an embodiment of the invention.

Description of reference numerals:

where in the figures the same reference numerals are used to indicate functionally identical parts of the same component, there are differences only in position.

1 main body

2 damping mechanism

3 load

10 base

20 movable base

21 mounting part

22 flange

30 shock absorbing member

31 damper part

32 connecting part

Supporting part 321

322 stop part

33 clamping groove

34 sleeve joint hole

40 first shaft body

50 semi-open type guide sleeve

51 axle hole

52 first open groove

53 second locking member

60 adjustment assembly

61 clamping piece

611 second open groove

62 first locking member

70 second shaft body

80 position limiting piece

90 fastener

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.

The embodiment of the invention provides a damping mechanism, which comprises a base, a movable base body and a deformable damping piece, wherein the base is provided with a base seat;

Based on the damping mechanism, the embodiment of the invention further provides a movable device, which comprises a main body and a power assembly connected with the main body, wherein the damping mechanism is further arranged on the main body, the base is fixedly connected with the main body, and the movable base body is used for connecting a load.

According to the damping mechanism and the movable device provided by the embodiment of the invention, due to the semi-open structure of the semi-open type guide sleeve, the inner diameter and the outer diameter of the semi-open type guide sleeve can be adjusted, so that the adjustment of the fit clearance between the first shaft body and the semi-open type guide sleeve in the damping mechanism can be realized. The fit clearance between the first shaft body and the semi-open type guide sleeve is adjusted according to the actual working condition of the damping mechanism, so that the unicity of the movement direction of the first shaft body in the semi-open type guide sleeve can be ensured, the relative movement between the base and the movable base body is the movement in the single direction, and the effective one-way damping effect 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.

Referring to fig. 1 to 3, in which fig. 1 is an overall structural diagram of a shock absorbing mechanism according to an embodiment of the present invention, the shock absorbing mechanism includes a base 10 and a movable base 20, the movable base 20 can move relative to the base 10 in a single direction, and when the shock absorbing mechanism is installed on a device requiring shock absorption, the base 10 and the movable base 20 are respectively and fixedly connected to different structures, so that shock of the structure connected to the movable base 20 can be reduced, and stability is improved. Fig. 2 is a schematic view of the movable seat 20, and fig. 3 is a schematic view of the shock absorbing mechanism of this embodiment with the movable seat 20 removed, in this embodiment, the shock absorbing mechanism further includes a deformable shock absorbing member 30, a first shaft 40 and a semi-open type guiding sleeve 50, the shock absorbing member 30 is elastically disposed between the base 10 and the movable seat 20 for buffering the relative movement between the base 10 and the movable seat 20; the first shaft 40 and the semi-open type guide sleeve 50 are also disposed between the base 10 and the movable base 20, the base 10 and the movable base 20 are movably connected through the first shaft 40 and the semi-open type guide sleeve 50 sleeved on the first shaft 40, the first shaft 40 can reciprocate in the semi-open type sleeve, and a fit clearance between the first shaft 40 and the semi-open type guide sleeve 50 is adjustable.

In the embodiment of the present invention, the positions of the first shaft 40 and the semi-open type guide sleeve 50 in the shock absorbing mechanism are opposite, and the first shaft 40 may be disposed on the movable seat 20, and the semi-open type guide sleeve 50 is disposed on the base 10; alternatively, the first shaft 40 is disposed on the base 10, and the semi-open type guide sleeve 50 is disposed on the movable base 20. In this embodiment, as shown in fig. 2, the first shaft 40 is fixed on a surface of the movable seat 20 facing the base 10, and the semi-open type guide sleeve 50 is disposed on a surface of the base 10 facing the movable seat 20.

Further, as can be seen from fig. 3, the semi-open type guide sleeve 50 includes a shaft hole 51 and a first open groove 52 communicated with the shaft hole 51, and the aperture of the shaft hole 51 can be adjusted by adjusting the width of the notch of the first open groove 52, so as to adjust the fit clearance between the semi-open type guide sleeve 50 and the first shaft 40, in this embodiment, the fit clearance between the first shaft 40 and the semi-open type guide sleeve 50 can be adjusted in various ways.

One possible implementation of this embodiment is to adjust by means of a tool outside the damping mechanism, for example, if the outer diameter of the first shaft 40 is larger than the inner diameter of the shaft hole 51, the width of the notch of the first open groove 52 can be enlarged by an external tool, so that the diameter of the shaft hole 51 is increased to match the outer diameter of the first shaft 40; if the outer diameter of the first shaft body 40 is smaller than the inner diameter of the shaft hole 51, after the first shaft body 40 is inserted into the semi-open type guide sleeve 50, the semi-open type guide sleeve 50 can be clamped by a clamping tool outside the damper mechanism, and the width of the notch of the first open groove 52 is reduced so that the diameter of the shaft hole 51 is reduced to match the outer diameter of the first shaft body 40. The hole diameter of the shaft hole 51 is matched with the outer diameter of the first shaft 40, which means that the matching tolerance between the shaft hole 51 and the first shaft 40 meets the requirement of axial movement of the first shaft 40 in the shaft hole 51, and at the same time, no radial offset movement of the first shaft 40 occurs in the shaft hole 51, that is, the movement of the first shaft 40 in the shaft hole 51 is unidirectional, and the inner diameter of the shaft hole 51 is matched with the outer diameter of the first shaft 40.

Another possible implementation manner in this embodiment is to additionally provide a component or assembly for adjusting the semi-open type guide sleeve 50 in the damping mechanism, as shown in fig. 4, the damping mechanism further includes an adjusting assembly 60, the adjusting assembly 60 is used for adjusting the size of the first open slot 52 of the semi-open type guide sleeve 50, optionally, the adjusting assembly 60 includes a clamping member 61 and a first locking member 62, and the first locking member 62 cooperates with the clamping member 61 to lock the semi-open type guide sleeve 50.

As an alternative of the present invention, the clamping member 61 is a semi-open type adjusting sleeve, a second open groove 611 is formed on a side of the semi-open type adjusting sleeve for adjusting an inner diameter dimension of the semi-open type adjusting sleeve, the second open groove 611 extends outwards to form two sides, the two sides can be used for locking into the first locking member 62, and the first locking member 62 can be a screw. The semi-open type adjusting sleeve can be disposed on the base 10, the semi-open type guiding sleeve 50 is sleeved in the semi-open type adjusting sleeve, meanwhile, two sides of the second open groove 611 of the semi-open type adjusting sleeve extending outwards are locked into the screw together, and the size of the second open groove 611 is reduced along with the locking of the screw, so that the size of the first open groove 52 is correspondingly reduced. As an implementation of the present invention, at least the second open groove 611 in the semi-open type adjustment sleeve is partially or completely suspended above the base 10, so as to adjust the size (i.e. the width of the notch) of the second open groove 611, thereby adjusting the inner diameter of the semi-open type adjustment sleeve, and further adjusting the diameter of the hole 51 of the semi-open type guide sleeve 50 in the semi-open type adjustment sleeve.

In another possible implementation manner of this embodiment, the semi-open guiding sleeve 50 itself has an adjusting portion for adjusting the width of the slot opening of the first opening groove 52, as shown in fig. 5, as an alternative, the first opening groove 52 of the semi-open guiding sleeve 50 extends out two sides, which are locked together into the second locking member 53, and the distance between the two sides can be adjusted by the second locking member 53, so as to adjust the size (referring to the width of the slot opening) of the first opening groove 52, for example, the size of the first opening groove 52 is reduced along with the locking of the second locking member 53. As an implementation of the present invention, like the semi-open type adjustment sleeve, at least the first open slot 52 of the semi-open type adjustment sleeve is partially or completely suspended on the base 10. Alternatively, the second locking member 53 may be a locking screw.

Wherein, for the first locking member 62 and/or the second locking member 53, the number or the corresponding position thereof can be adjusted accordingly in practical application, in addition to the above illustration.

In the above embodiment of the present invention, the semi-open type guide sleeve 50 may be a semi-open type linear bearing or a semi-open type oilless bearing.

In the embodiment of the present invention, there may be various ways of disposing the shock absorbing members 30 between the base 10 and the movable base 20, and the installation manner of the shock absorbing members 30 will be described below.

In one installation mode, the shock absorbing members 30 are not fixedly connected to the base 10 and the movable seat 20, such as directly and elastically abutting against the end surfaces of the base 10 and the movable seat 20, which is intuitive and will not be described herein.

In another installation manner, the shock absorbing members 30 are fixedly connected with one or both of the base 10 and the movable seat 20, as shown in fig. 6, the damping member 30 includes a damping portion 31 and a connecting portion 32, the connecting portion 32 is disposed at one end of the damping portion 31 close to the movable base 20 or at two ends of the damping portion 31 respectively (fig. 6 shows that the connecting portion 32 is disposed at two ends of the damping portion 30), the connecting portion 32 of the shock absorbing member 30 can be fixedly connected to the base 10 and the movable seat 20 respectively, the shock absorbing member 30 can be elastically deformed when the movable base body 20 moves relative to the base 10, so as to realize a shock absorbing function, the shock absorbing member 30 is used for supporting the movable base body 20 while achieving a shock absorbing function, and cooperates with the base 10 to jointly limit a movement range of the movable base body 20 when the movable base body 20 moves.

Optionally, a clamping groove 33 may be formed between the damping portion 31 and the connecting portion 32, and further referring to fig. 7, the connecting portion 32 may include a supporting portion 321 and a stopping portion 322, the supporting portion 321 is connected to the stopping portion 322 and the damping portion 31, and the supporting portion 321, the stopping portion 322 and the damping portion 31 cooperate to form the clamping groove 33. In the present embodiment, the clamping groove 33 can be used for connecting the shock absorbing member 30 with the base 10 or the movable base body 20, which will be described below.

In a further embodiment of the present invention, referring to fig. 8, which is a possible cross-sectional view of the shock absorbing mechanism, a second shaft 70 parallel to the first shaft 40 is further disposed between the base 10 and the movable seat 20, and the second shaft 70 can be used to cooperate with other components in the shock absorbing mechanism to limit the position of the movable seat 20.

Further, the second shaft body 70 may be disposed in cooperation with the shock absorbing member 30, with reference to fig. 2, one end of the second shaft body 70 is fixedly disposed on a surface of the base 10 facing the movable base body 20, with reference to fig. 7, the shock absorbing member 30 is a hollow structure and is provided with a sleeving hole 34 to be sleeved on the second shaft body 70 and abut against the base 10, the movable base body 20 is provided with an installation portion 21 for cooperating with the second shaft body 70, and the shock absorbing member 30 and the second shaft body 70 are both partially disposed in the installation portion 21.

Alternatively, the mounting portion 21 is an axial hole, on one hand, the connecting portion 32 provided at one end of the shock absorbing portion 31 close to the movable seat body 20 is located in the axial hole, wherein a flange 22 is provided in the axial hole, with reference to fig. 7, the supporting portion 321 is received in a clamping hole formed around the flange 22, and the stopping portion 322 is supported on the flange 22, that is, the clamping groove 33 is clamped with the flange 22, so as to realize connection between the movable seat body 20 and the shock absorbing member 30; on the other hand, a limiting member 80 is installed at one end of the second shaft body 70 located in the axial hole, at least a portion of the limiting member 80 protrudes out of an end surface of the second shaft body 70, and the limiting member 80 is used for cooperating with the second shaft body 70 and the base 10 to jointly limit the movement range of the movable base body 20 and the shock absorbing member 30.

Alternatively, the position-limiting member 80 may be a screw with a larger convex edge, or a position-limiting sheet fixed on the second shaft body 70 by a fastening member 90.

Of course, the second shaft 70 may be fixed to the movable seat 20, the mounting portion 21 is located on the base 10, and the shock absorbing member 30 and the second shaft 70 are both partially located in the mounting portion 21, and the specific mounting manner is similar to the mounting manner when the second shaft 70 is fixed to the base 10, and will not be further described herein.

In the above embodiments, the damping member 30 may be a damping ball or a damping spring, a damping elastic sheet, or the like.

In the above embodiment, the semi-open type guide sleeve 50 includes two or more than two, the damping member 30 includes two or more than two, one first shaft 40 is sleeved in each semi-open type guide sleeve 50, and the semi-open type guide sleeves 50 and the damping member 30 are arranged at intervals and/or in a matrix. Accordingly, each of the shock absorbing members 30 may be correspondingly provided with a second shaft body 70, and each of the semi-open type guide sleeves 50 may be provided with a semi-open type adjustment sleeve. As shown in fig. 9, in the figure, two adjusting assemblies 60 and two second shaft bodies 70 are distributed on the base 10 in a matrix manner, that is, the two second shaft bodies 70 are arranged oppositely, the two adjusting assemblies 60 are arranged oppositely, and the two second shaft bodies 70 and the two adjusting assemblies 60 are arranged at intervals; a semi-open type guide sleeve 50 is arranged in each adjusting assembly 60, and each semi-open type guide sleeve 50 is matched with one first shaft body 40; each second shaft 70 is correspondingly provided with a damping member 30, and is inserted into one mounting portion 21 to be matched with the corresponding limiting member 80 and the corresponding fastening member 90. Alternatively, the two adjustment assemblies 60 form plane symmetry with respect to the central axes of the two second shaft bodies 70.

In this embodiment, the shape of the end surface of the base 10 facing the movable seat 20 may be a circle or a polygon, the shape of the end surface of the movable seat 20 facing the base 10 is matched with the shape of the end surface of the base 10, as shown in fig. 9, the facing surfaces of the base 10 and the movable seat 20 may be triangles with rounded corner design. Further, a housing (not shown) extends from the end surface of the movable seat 20 facing the base 10 to the base 10, and when the shock absorbing mechanism is assembled, the housing can substantially cover other components between the base 10 and the movable seat 20.

Next, referring to fig. 8 to 10, the assembly of the damping mechanism is exemplarily described, and the structure of the damping mechanism for the exemplary description includes a base 10, a movable base 20, a first shaft 40 disposed on the movable base 20, a semi-open type guide sleeve 50, a semi-open type adjustment sleeve and a second shaft 70 disposed on the base 10, a damping member 30 sleeved on the second shaft 70, and a limiting member 80 connected to the second shaft 70 in a mounting portion 21 of the movable base 20.

The mounting portion 21 is provided with a flange 22 therein, and the damper 30 includes a connecting portion 32.

Its simple and easy assembly process includes:

placing the semi-open type guide sleeve 50 in the semi-open type adjusting sleeve, and sleeving the damping member 30 on the second shaft body 70;

the aperture of the shaft hole 51 of the semi-open type guide sleeve 50 is adjusted by the semi-open type adjusting sleeve to be matched with the outer diameter of the first shaft body 40, so as to ensure the unity of the movement direction of the first shaft body 40 in the semi-open type guide sleeve 50;

inserting the first shaft body 40 into the semi-open type guide sleeve 50 and passing the second shaft body 70 and the shock absorbing member 30 partially through the flange 22 in the mounting portion 21;

the second shaft body 70 is provided with the limiting member 80 through the mounting portion 21, so that the limiting member 80 and the flange 22 can clamp the connecting portion 32, and the mounting is completed.

Further, the working process of the damping mechanism in different application scenarios is described below with reference to fig. 8 and 10.

Fig. 8 and 10 show two operating states of the damper mechanism. Fig. 8 shows a state in which the movable base 20 moves to the extreme along the direction a, and the distance between the movable base 20 and the base 10 is the largest at this time; fig. 10 shows a state in which the movable base 20 moves to the limit along the direction B, and the distance between the movable base 20 and the base 10 is the minimum; the working process of the damping mechanism comprises the process of changing from the state of FIG. 8 to the state of FIG. 10 and the process of changing from the state of FIG. 10 to the state of FIG. 8.

Specifically, one possible application scenario of the damping mechanism is to damp a load (such as a vehicle-mounted pan/tilt head) on a vehicle (such as an unmanned vehicle), specifically, fixedly connect the load with a movable base body 20 of the damping mechanism, and fix a base 10 of the damping mechanism on a body of the vehicle. Taking an unmanned vehicle and a vehicle-mounted holder as examples, the vehicle-mounted holder, a damping mechanism and the unmanned vehicle are distributed from top to bottom in spatial position, and the damping mechanism can weaken the influence of excitation from uneven ground or wheels (such as Mecanum wheels) on the vehicle-mounted holder in the moving process of the unmanned vehicle. When the unmanned vehicle, the damping mechanism and the vehicle-mounted holder are in the initial static state, due to the self-weight of the vehicle-mounted holder and the movable base 20, the damping member 30 of the damping mechanism is in the compression deformation state in the initial state, i.e. between two extreme positions in A, B or at an extreme position in the direction B.

Then, during the operation of the damper mechanism, when the damper mechanism on the unmanned vehicle is changed from the initial state (i.e., the initial state in which the damper 30 is located between the two extreme positions A, B) to the state shown in fig. 8, the compression amount of the damper 30 will become small, and even zero, and particularly, in the case where the damper 30 is fixedly connected to the base 10, there is a possibility that the damper 30 is in the tensile deformation state in the state shown in fig. 8. In the state of fig. 8, the flange 22 in the mounting portion 21 presses the connecting portion 32 of the damping member 30 to abut against the limiting member 80, and the limiting member 80 limits the movement range of the movable base 20 along the direction a. The process of the damper mechanism changing from the state of fig. 8 to the initial state is the reverse process of the change from the initial state to the state shown in fig. 8.

When the shock absorbing mechanism on the unmanned vehicle changes from the initial state to the state shown in fig. 10, the compression amount of the shock absorbing member 30 will further increase until the movable seat body 20 abuts against the base 10, and the base 10 defines the movable range of the movable seat body 20 along the direction B. In this illustration, the base 10 is used as a part of the limiting, and in other embodiments, a limiting boss may be disposed on the base 10 to limit the movement of the movable base 20 along the direction B. The process of the damper mechanism changing from the state of fig. 10 to the initial state is the reverse process of the change from the initial state to the state shown in fig. 10.

It is understood that, in the above-mentioned damping process, the damping member 30 can move from the initial state along the direction B to the direction a to the direction B, or from the initial state along the direction a to the direction B to the direction a, so as to reduce the vibration to which the vehicle-mounted pan/tilt head is subjected.

Another possible application scenario of the damping mechanism is to damp a load (e.g., a cradle head) on an aircraft (e.g., an unmanned aerial vehicle), specifically, fixedly connect the load with a movable base body 20 of the damping mechanism, and fix a base 10 of the damping mechanism on a fuselage of the aircraft. Use unmanned aerial vehicle, cloud platform as the example, on spatial position unmanned aerial vehicle, damper and cloud platform distribute from last to down, at unmanned aerial vehicle flight in-process, damper can weaken the vibrations that the cloud platform received. When the unmanned aerial vehicle, the damping mechanism and the pan/tilt head are in the initial static state, due to the weight of the pan/tilt head and the movable base body 20, the damping member 30 of the damping mechanism is in the tensile deformation state in the initial state, that is, between two extreme positions in A, B or at the extreme position in the direction a.

Then, during the operation of the shock absorbing mechanism, when the shock absorbing mechanism on the drone changes from the initial state (e.g. the initial state is that the shock absorbing member 30 is located between two extreme positions A, B) to the state shown in fig. 8, the stretching amount of the shock absorbing member 30 further increases, and in the state shown in fig. 8, the flange 22 in the mounting portion 21 presses the connecting portion 32 of the shock absorbing member 30 to abut against the limiting member 80, and the limiting member 80 limits the movement range of the movable base 20 along the direction a.

When the damping mechanism on the drone changes from the initial state to the state shown in fig. 10, the stretching amount of the damping member 30 will become smaller, even the stretching amount becomes 0, until the movable base body 20 abuts against the base 10, and in particular, there is a possibility that the damping member 30 is in the compression deformation state in the state shown in fig. 10. The base 10 defines a movable range of the movable base 20 along the direction B. In this illustration, the base 10 is used as a part of the limiting, and in other embodiments, a limiting boss may be disposed on the base 10 to limit the movement of the movable base 20 along the direction B.

It is understood that, in the above-mentioned damping process, the damping member 30 can move repeatedly from the initial state (including the extreme position in the a direction) in the B direction to the a direction to the B direction, or from the initial state in the a direction to the B direction to the a direction to reduce the vibration to which the pan/tilt head is subjected.

It should be noted that, according to different application scenarios of the shock absorbing structure, the connection relationship between the shock absorbing member 30 and the base 10 and the movable base 20 in the shock absorbing structure needs to be adjusted accordingly. When the movable base 20 faces the direction of the center of gravity, the shock absorbing members 30 need to be fixedly connected to the base 10, but when the movable base 20 faces the direction opposite to the direction of the center of gravity, the shock absorbing members 30 may not be fixedly connected to the base 10 and the movable base 20.

In the above state change process, the external shock is absorbed by the deformation of the shock absorbing member 30, so as to achieve the shock absorbing effect, and the semi-open type guide sleeve 50 is adjusted in a matching manner, so that the one-way shock absorption can be realized.

According to the damping mechanism provided by the embodiment of the invention, compared with the prior art, the adjustable semi-open type guide sleeve 50 is adopted to realize the adjustment of the fit clearance between the first shaft body 40 and the semi-open type guide sleeve 50 of the damping mechanism, and the fit clearance is adjusted according to the actual working condition of the damping mechanism, so that the moving direction of the first shaft body 40 in the semi-open type guide sleeve 50 is ensured to be single, the relative movement between the base 10 and the movable base body 20 is the movement in a single direction, and the effective one-way damping effect is realized.

Referring to fig. 13, a partial view of a mobile device provided in an embodiment of the present invention is shown, which includes a main body 1 and a power assembly (not shown) connected to the main body 1, the main body 1 is further provided with the damping mechanism 2, wherein the base 10 is fixedly connected to the main body 1, and the movable base 20 is used for connecting a load 3. In this embodiment, the movable device may be an unmanned aerial vehicle, an unmanned vehicle, a mobile robot, an unmanned ship, or the like, and the load 3 may be a pan-tilt or other equipment requiring shock absorption.

Wherein, relatively speaking, the unmanned aerial vehicle may have a damping requirement in multiple directions, it is preferable that the movable device in the embodiment is an unmanned vehicle.

According to the movable device provided by the embodiment of the invention, with reference to fig. 1 to 10, the adjustable semi-open type guide sleeve 50 is adopted to adjust the fit clearance between the first shaft body 40 of the damping mechanism and the semi-open type guide sleeve 50, and the fit clearance is adjusted according to the actual working condition of the damping mechanism, so that the moving direction of the first shaft body 40 in the semi-open type guide sleeve 50 is ensured to be single, the relative movement between the base 10 and the movable base body 20 is the movement in a single direction, an effective one-way damping effect is realized, the vibration of a load in the single direction is effectively reduced, and the stability of the load is ensured.

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 shock absorbing mechanism, comprising:

the damping device comprises a base, a movable base body and a deformable damping piece;

2. The damping mechanism according to claim 1, further comprising an adjustment assembly for adjusting the size of the first open slot of the semi-open guide sleeve.

3. The damper mechanism of claim 2, wherein the adjustment assembly includes a clamp member and a first locking member that cooperates with the clamp member to lock the semi-open guide sleeve.

4. The damper mechanism according to claim 3, wherein said first shaft is fixed to a surface of said movable base facing said base, said clamping member is a semi-open adjusting sleeve, and said first locking member is a screw;

5. The damper mechanism of claim 4, wherein at least the second open section of the semi-open adjustment sleeve is partially or completely suspended from the base.

6. The damper mechanism according to claim 1, wherein both sides of the first open groove of the semi-open type guide sleeve are locked together into the second locking member, and the size of the first open groove is reduced as the second locking member is locked.

7. The damper mechanism according to any one of claims 1 to 6, wherein the semi-open guide sleeve is a semi-open linear bearing or a semi-open oilless bearing.

8. The damping mechanism according to any one of claims 1 to 6, wherein a second shaft parallel to the first shaft is disposed between the base and the movable base, and the damping member is disposed in cooperation with the second shaft.

9. The damping mechanism according to claim 8, wherein the second shaft is disposed on a surface of the base facing the movable base, and the damping member is sleeved on the second shaft and abuts against the base;

10. The damping mechanism according to claim 9, wherein the damping member comprises a damping portion and a connecting portion, the connecting portion is disposed at one end of the damping portion close to the movable base or at two ends of the damping portion respectively;

11. The damper mechanism of claim 10, wherein a flange is disposed within the axial bore;

12. The damping mechanism according to any one of claims 1 to 6, wherein the semi-open type guide sleeve comprises two or more than two, the damping member comprises two or more than two, each semi-open type guide sleeve is internally sleeved with one first shaft body, and the semi-open type guide sleeve and the damping member are arranged in a spaced and/or matrix manner.

13. A movable device comprises a main body and a power assembly connected with the main body, and is characterized in that the main body is also provided with a damping mechanism, and the damping mechanism comprises a base, a movable seat body and a deformable damping piece;

the first shaft body can reciprocate in the semi-open type sleeve, and the fit clearance between the first shaft body and the semi-open type guide sleeve is adjustable;

the base is fixedly connected with the main body, and the movable base body is used for connecting a load.

14. The movable apparatus of claim 13, wherein the shock absorbing mechanism further comprises an adjustment assembly for adjusting the size of the first open slot of the semi-open guide sleeve.

15. The movable apparatus of claim 14, wherein the adjustment assembly comprises a clamp and a first locking member that cooperates with the clamp to lock the semi-open guide sleeve.

16. The movable apparatus according to claim 15, wherein the first shaft is fixed to a surface of the movable seat facing the base, the clamping member is a semi-open adjusting sleeve, and the first locking member is a screw;

17. The movable apparatus of claim 16, wherein at least the second open section of the semi-open adjustment sleeve partially or completely overhangs the base.

18. The mobile device as claimed in claim 13, wherein the two sides of the first open slot of the semi-open guide sleeve are locked together into a second locking member, and the size of the first open slot is reduced with the locking of the second locking member.

19. The mobile device according to any one of claims 13 to 18, wherein the semi-open guide sleeve is a semi-open linear bearing or a semi-open oilless bearing.

20. The movable apparatus according to any one of claims 13-18, wherein a second shaft parallel to the first shaft is disposed between the base and the movable base, and the damping member is disposed in cooperation with the second shaft.

21. The movable apparatus according to claim 20, wherein the second shaft is disposed on a surface of the base facing the movable base, and the damper is sleeved on the second shaft and abuts against the base;

22. The movable apparatus according to claim 21, wherein the damping member comprises a damping portion and a connecting portion, and the connecting portion is disposed at one end of the damping portion close to the movable base or at two ends of the damping portion respectively;

23. The movable apparatus of claim 22, wherein a flange is disposed within the axial bore;

24. The movable apparatus according to any one of claims 13-18, wherein the semi-open type guide sleeves comprise two or more than two, the damping member comprises two or more than two, each of the semi-open type guide sleeves is internally sleeved with one of the first shaft bodies, and the semi-open type guide sleeves and the damping member are arranged in a spaced and/or matrix manner.